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Xing Z, Zou S, Ma C, Qiao Q, Cai X, Yue K, Yue J, Zhou C, Zheng J, Wang Y, Luo J, Yuan H, Nai J, Tao X, Liu Y. π-π Stacked Nigrosine@Carbon Nanotube Nanocomposite as an All-in-One Additive for High Energy Flexible Batteries. ACS NANO 2024; 18:17950-17957. [PMID: 38916519 DOI: 10.1021/acsnano.4c04624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The pursuit of high energy density in lithium batteries has driven the development of efficient electrodes with low levels of inactive components. Herein, a facile approach involving the use of π-π stacked nigrosine@carbon nanotube nanocomposites as an all-in-one additive for a LiFePO4 cathode has been developed. This design significantly reduces the proportion of inactive substances within the cathode, resulting in a battery that exhibits a high specific capacity of 143 mAh g-1 at a 1 C rate and shows commendable cyclic performance. Furthermore, the elimination of rigid current collectors endows the electrode with flexibility, offering avenues for future wearable energy storage devices.
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Affiliation(s)
- Zhihao Xing
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Shihui Zou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Cong Ma
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Qiangqiang Qiao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Xiaohan Cai
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Ke Yue
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Juxin Yue
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Chunyi Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jiale Zheng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yao Wang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jianmin Luo
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Huadong Yuan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jianwei Nai
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Xinyong Tao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yujing Liu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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Shih JY, Lin GY, Li YJJ, Hung TF, Jose R, Karuppiah C, Yang CC. Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140356] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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3
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Fang L, Wang S, Song C, Yang X, Li Y, Liu H. Enhanced nitrate reduction reaction via efficient intermediate nitrite conversion on tunable Cu xNi y/NC electrocatalysts. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126628. [PMID: 34343879 DOI: 10.1016/j.jhazmat.2021.126628] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Electroreduction of nitrate (NO3-) to value-added ammonia (NH3) provides an alternative to NH3 production industry and remediation of NO3--containing wastewater. This study reports a series of Cu-Ni catalysts with component-controllable CuxNiy nanoparticles encapsulated in N-doped carbon film (CuxNiy/NC), and disclosure of the associated mechanism for NO3- reduction reaction (NO3-RR). Cu0.43Ni0.57/NC achieves a better NO3--N removal proportion of 89% in comparison with the reference catalysts, including Cu/NC (73%) and CuxNiy/NC with other compositions (Cu0.79Ni0.21/NC, 83%; Cu0.26Ni0.74/NC, 62%; Ni/NC, 20%). The experimental results and density functional theory calculations demonstrate that the lowered energy barriers of *NO2-to-*NO derived from appropriate Ni atom alloying plays a key role in the enhanced catalytic activity. Auxiliary porous substrate further contributes to the exposure of active sites and the durability of catalyst structure. These findings offer a mechanistic understanding of catalyst structure on the NO3-RR activity and valuable insights toward rational design of other catalysts for enhanced NO3-RR.
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Affiliation(s)
- Ling Fang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China
| | - Sha Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China
| | - Cheng Song
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China
| | - Xiaohui Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, No. 266, Fangzheng Avenue, Beibei District, Chongqing 400714, China.
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4
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Boyadzhieva T, Koleva V, Markov P, Stoyanova R. Iron oxidation to amplify the Na and Li storage capacities of nano-sized maricite NaFePO 4. Dalton Trans 2021; 50:16548-16561. [PMID: 34735564 DOI: 10.1039/d1dt03318b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports an effective approach to improve dramatically the electrochemical performance of nanosized NaFePO4 with a maricite structure, which is commonly considered as electrochemically inactive due to the absence of structural channels for alkaline ion mobility. The approach is based on the complete oxidation under mild conditions (i.e. at low temperatures around 280 °C and traces of oxygen) of the nanosized maricite phase. It is prepared by the phosphate-formate precursor method and is additionally ball-milled with a carbon additive. The oxidation of Fe2+ proceeds at the nanoscale level within the maricite nanoparticles and causes a massive structural transformation of the maricite phase into a monoclinic NASICON phase Na3Fe2(PO4)3 with the preservation of the crystallinity. The oxidized maricite phase exhibits high specific capacities, cycling stability and rate capability when it is used as an electrode in both Na and Li half-cells. The effect of different sodium and lithium electrolytes on the storage performance is investigated as well. It is found that the highest specific capacity (of about 150 mA h g-1) is achieved in Li half-cells using the LiPF6 electrolyte, while in Na half-cells the electrolyte NaFSI/EC:DMC achieves a specific capacity of around 100 mA h g-1. The rate capability is better in Na half-cells than that in Li half-cells. The mechanism of the reversible intercalation/deintercalation of Na+ and Li+ ions is studied by ex situ XRD and TEM analyses. The results show that the maricite is an electrochemically inactive phase, but through manipulation including oxidation or amorphization it becomes an active electrode material.
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Affiliation(s)
- Tanya Boyadzhieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, 1113 Sofia, Bulgaria.
| | - Violeta Koleva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, 1113 Sofia, Bulgaria.
| | - Pavel Markov
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, 1113 Sofia, Bulgaria.
| | - Radostina Stoyanova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, 1113 Sofia, Bulgaria.
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5
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Ghorbani M, Soleymani H, Hashemzadeh H, Mortezazadeh S, Sedghi M, Shojaeilangari S, Allahverdi A, Naderi-Manesh H. Microfluidic investigation of the effect of graphene oxide on mechanical properties of cell and actin cytoskeleton networks: experimental and theoretical approaches. Sci Rep 2021; 11:16216. [PMID: 34376720 PMCID: PMC8355332 DOI: 10.1038/s41598-021-95624-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 07/28/2021] [Indexed: 11/09/2022] Open
Abstract
Biomechanical and morphological analysis of the cells is a novel approach for monitoring the environmental features, drugs, and toxic compounds’ effects on cells. Graphene oxide (GO) has a broad range of medical applications such as tissue engineering and drug delivery. However, the effects of GO nanosheets on biological systems have not been completely understood. In this study, we focused on the biophysical characteristics of cells and their changes resulting from the effect of GO nanosheets. The biophysical properties of the cell population were characterized as follows: cell stiffness was calculated by atomic force microscopy, cell motility and invasive properties were characterized in the microfluidic chip in which the cells are able to visualize cell migration at a single-cell level. Intracellular actin was stained to establish a quantitative picture of the intracellular cytoskeleton. In addition, to understand the molecular interaction of GO nanosheets and actin filaments, coarse-grained (CG) molecular dynamics (MD) simulations were carried out. Our results showed that GO nanosheets can reduce cell stiffness in MCF7 cells and MDA-MB-231 cell lines and highly inhibited cell migration (39.2%) in MCF-7 and (38.6%) in MDA-MB-231 cell lines through the GO nanosheets-mediated disruption of the intracellular cytoskeleton. In the presence of GO nanosheets, the cell migration of both cell lines, as well as the cell stiffness, significantly decreased. Moreover, after GO nanosheets treatment, the cell actin network dramatically changed. The experimental and theoretical approaches established a quantitative picture of changes in these networks. Our results showed the reduction of the order parameter in actin filaments was 23% in the MCF7 cell line and 20.4% in the MDA-MB-231 cell line. The theoretical studies also showed that the GO nanosheet–actin filaments have stable interaction during MD simulation. Moreover, the 2D free energy plot indicated the GO nanosheet can induce conformational changes in actin filaments. Our findings showed that the GO nanosheets can increase the distance of actin-actin subunits from 3.22 to 3.5 nm and in addition disrupt native contacts between two subunits which lead to separate actin subunits from each other in actin filaments. In this study, the biomechanical characteristics were used to explain the effect of GO nanosheets on cells which presents a novel view of how GO nanosheets can affect the biological properties of cells without cell death. These findings have the potential to be applied in different biomedical applications.
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Affiliation(s)
- Mohammad Ghorbani
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hossein Soleymani
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hadi Hashemzadeh
- Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Saeed Mortezazadeh
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Mosslim Sedghi
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Seyedehsamaneh Shojaeilangari
- Biomedical Engineering Group, Department of Electrical Engineering and Information Technology, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran
| | - Abdollah Allahverdi
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hossein Naderi-Manesh
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran. .,Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran.
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6
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Ou Y, Zhang Y, Xiong Y, Hu Z, Dong L. Three-dimensional porous radical polymer/reduced graphene oxide composite with two-electron redox reactions as high-performance cathode for lithium-ion batteries. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Lv T, Min H, Shu H, Zhou Y, Liang Q, Li X, Ren Q, Ma Z, Wang X. LiMnPO4 nanoplates with optimal crystal orientation in situ anchored on the expanded graphite for high-rate and long-life lithium ion batteries. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136945] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Mehrdad-Vahdati B, Pourhashem S, Sedghi M, Vaezi Z, Shojaedin-Givi B, Rashidi A, Naderi-Manesh H. A novel aspect of functionalized graphene quantum dots in cytotoxicity studies. Toxicol In Vitro 2019; 61:104649. [PMID: 31518670 DOI: 10.1016/j.tiv.2019.104649] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 07/02/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
Graphene quantum dots (GQDs) represent a new generation of graphene-based nanomaterials with enormous potential for use and development of a variety of biomedical applications. However, up to now little studies have investigated the impact of GQDs on human health in case of exposure. GQDs were synthesized from citric acid as carbon precursor by hydrothermal treatment at 160 °C for 4 h. The synthesized GQDs showed strong blue emission under UV-Irradiation with fluorescence quantum yield of 9.8%. The obtained GQDs were further carbonized, activated and functionalized by nitric acid vapor method. Nitrogen adsorption/desorption isotherms were used to analyze the surface area and porous structures of GQDs. The results revealed that compared to GQDs, the specific surface area of functionalized graphene quantum dots (fGQDs) has been increased from 0.0667 to 2.5747 m2/g and pore structures have been enhanced significantly. The potential cytotoxic effect of GQDs, fGQDs and GO suspensions was evaluated on HFF cell line using MTT assays and flow cytometry method after 24 h incubation. We have for the first time demonstrated that by carbonization, activation and functionalization of GQDs they still showed cytocompatible properties. We observed excellent biocompatibility of GQDs and fGQDs at low concentrations. Moreover, the results suggested that modification of GQDs yields product suspensions with high surface area, enhanced pore volume and loading capacities. Thus, fGQDs represent an attractive candidate for further use in drug delivery systems and bio-imaging application.
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Affiliation(s)
- Bahare Mehrdad-Vahdati
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran
| | - Sepideh Pourhashem
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), P.O. Box: 14665-1998, Tehran, Iran
| | - Mosslim Sedghi
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran
| | - Zahra Vaezi
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran
| | - Behnaz Shojaedin-Givi
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran
| | - Alimorad Rashidi
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), P.O. Box: 14665-1998, Tehran, Iran.
| | - Hossein Naderi-Manesh
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran.
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9
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LiAlCl4·3SO2 as a high conductive, non-flammable and inorganic non-aqueous liquid electrolyte for lithium ion batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Gao L, Jin Y, Liu X, Xu M, Lai X, Shui J. A rationally assembled graphene nanoribbon/graphene framework for high volumetric energy and power density Li-ion batteries. NANOSCALE 2018; 10:7676-7684. [PMID: 29651497 DOI: 10.1039/c8nr00692j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
High volumetric energy and power densities are crucial for Li-ion batteries, which are however hindered by the loose structure and/or insufficient conductivity of conventional electrode laminates. Herein, an efficiently conductive framework of graphene nanoribbons (GNRs) and graphene (G) is rationally constructed to wrap LiFePO4 (LFP) into a binder-free dense electrode by a coupling technique of spray deposition and vacuum filtration. The spray ensures a uniform mixing of LFP, G and GNRs, meanwhile the vacuum filtration leads to a dense packing of the mixture. With only 2 wt% of G and GNRs, the LFP/GNR/G electrode delivers a high rate capability and a stable (dis)charge cycling performance under high LFP loading conditions. Moreover, the dense LFP/GNR/G electrode exhibits superior volumetric properties among all the reported LFP electrodes on the basis of the entire electrode volume, including a Li storage capacity of 318 A h L-1, an energy density of 1020 W h L-1 and a power density of 5.1 kW L-1 at 5C rate. This unique assembly strategy and the electrode structure pave a new way for high-volumetric-performance batteries.
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Affiliation(s)
- Liangliang Gao
- School of Materials Science and Engineering, Beihang University, Beijing 100083, China.
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11
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Graphene-Carbon Nanotubes-Modified LiFePO 4 Cathode Materials for High-Performance Lithium-Ion Batteries. ACTA ACUST UNITED AC 2018. [DOI: 10.4028/www.scientific.net/msf.913.818] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanocrystalline LiFePO4/graphene-carbon nanotubes (LFP-G-CNT) composite has been successfully synthesized by a hydrothermal method followed by heat-treatment. The microstructure and morphology of the LFP-G-CNTs composite were comparatively investigated with LiFePO4/graphene (LFP-G) and LiFePO4/carbon nanotubes (LFP-CNT) by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The LFP-G-CNTs nanoparticles were wrapped homogeneously and loosely within a 3D conducting network of graphene-carbon nanotubes. The conducting networks provided highly conductive pathways for electron transfer during the intercalation/deintercalation process, facilitated electron migration throughout the secondary particles, accelerated the penetration of the liquid electrolyte into the LFP-G-CNT composite in all directions and enhanced the diffusion of Li ions. The results indicate that the electrochemical activity of LFP-G-CNT composite may be enhanced significantly. The charge-discharge curves, cyclic voltammograms (CV) and electrochemical impedance spectroscopy (EIS) results demonstrate that LFP-G-CNT composite performes better than LFP-G and LFP-CNT composites. In particular, LFP-G-CNT composite with a low content of graphene and carbon nanotubes exhibites a high initial discharge capacity of 168.4 mAh g−1 at 0.1 C and 103.7 mAh g−1 at 40 C and an excellent cycling stability.
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12
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Murugesan C, Lochab S, Senthilkumar B, Barpanda P. Earth-Abundant Alkali Iron Phosphates (AFePO4
) as Efficient Electrocatalysts for the Oxygen Reduction Reaction in Alkaline Solution. ChemCatChem 2018. [DOI: 10.1002/cctc.201701423] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chinnasamy Murugesan
- Faraday Materials Laboratory, Materials Research Centre; Indian Institute of Science; C.V. Raman Avenue Bangalore 560012 India
| | - Shubham Lochab
- Faraday Materials Laboratory, Materials Research Centre; Indian Institute of Science; C.V. Raman Avenue Bangalore 560012 India
| | - Baskar Senthilkumar
- Faraday Materials Laboratory, Materials Research Centre; Indian Institute of Science; C.V. Raman Avenue Bangalore 560012 India
| | - Prabeer Barpanda
- Faraday Materials Laboratory, Materials Research Centre; Indian Institute of Science; C.V. Raman Avenue Bangalore 560012 India
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Heng S, Shi Q, Zheng X, Wang Y, Qu Q, Liu G, Battaglia VS, Zheng H. An organic-skinned secondary coating for carbon-coated LiFePO4 cathode of high electrochemical performances. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.179] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Wang H, Xie X, Wei X, Zhang X, Zhang J, Huang Y, Li Q. A New Strategy to Stabilize Capacity and Insight into the Interface Behavior in Electrochemical Reaction of LiNi 0.5Mn 1.5O 4/Graphite System for High-Voltage Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33274-33287. [PMID: 28881127 DOI: 10.1021/acsami.7b08828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The performance of CEI and SEI configuration and formation mechanism on the cathode and anode side for LiNi0.5Mn1.5O4/natural graphite (LNMO/NG) batteries is investigated, where series permutations of the NG electrodes modified with TEOS species as the anode for the LNMO full cells. It is believed that the excellent long-term cycling performance of LNMO/NG full cells at the high voltage is a result of alleviating the devastated reaction to form the CEI and SEI on the both electrodes with electrolyte, respectively. At a voltage range from 3.4 to 4.8 V for the LNMO full cells, 95.0% capacity retention after 100 cycles is achieved when cycled with TEOS-modifying NG anode. This mechanism may be explained that eliminating the HF and absorbing water impurities in the electrolyte by introducing the TEOS group, which can transform the SiO2 species that react with the acid of HF at the organic solvent environment instead of destroying/forming the anode SEI and attacking the LNMO spinel structure to form the dense and high resistance CEI, meanwhile the SiO2 species will absorb the water molecule and precipitate into the anode surface further stabilizing the SEI configuration during the cycling.
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Affiliation(s)
- Hongqiang Wang
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi Normal University , Guilin 541004, Chain
| | - Xuesong Xie
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
| | - Xiaolu Wei
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
| | - Xiaohui Zhang
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi Normal University , Guilin 541004, Chain
| | - Jiujun Zhang
- College of Sciences, Shanghai University , Shanghai 200444, China
| | - Youguo Huang
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
| | - Qingyu Li
- School of Chemical and Pharmaceutical Science, Guangxi Normal University , Guilin 541004, China
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi Normal University , Guilin 541004, Chain
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15
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Kim MS, Lee GW, Lee SW, Jeong JH, Mhamane D, Roh KC, Kim KB. Synthesis of LiFePO4/graphene microspheres while avoiding restacking of graphene sheet’s for high-rate lithium-ion batteries. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.03.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Shim JH, Kim YM, Park M, Kim J, Lee S. Reduced Graphene Oxide-Wrapped Nickel-Rich Cathode Materials for Lithium Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18720-18729. [PMID: 28516759 DOI: 10.1021/acsami.7b02654] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The encapsulation of Ni-rich cathode materials (LiNi0.6Co0.2Mn0.2O2) for lithium ion batteries in reduced graphene oxide (rGO) sheets is introduced to improve electrochemical performances. Using (3-aminopropyl)triethoxysilane, the active materials are completely wrapped with several rGO layers of ∼2 nm thickness. By virtue of the great electrical conductivity of graphene, the rGO-coated cathode materials exhibit much enhanced electrochemical performances of cycling property and rate capability. In addition, it is shown that the structural degradation of the active materials, which is from the rhombohedral layered structure (R3̅m) to the spinel (Fd3̅m) or rock-salt phase (Fm3̅m), is significantly reduced as well as delayed due to the protection of the active materials in the rGO layers from direct contact with electrolytes and the consequent suppression of side reactions.
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Affiliation(s)
- Jae-Hyun Shim
- Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon, Gyunggido 16419, Republic of Korea
| | - Young-Min Kim
- Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon, Gyunggido 16419, Republic of Korea
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Suwon, Gyunggido 16419, Republic of Korea
| | - Miji Park
- Department of Chemistry, Dong-A University , Busan 49315, Republic of Korea
| | - Jongsik Kim
- Department of Chemistry, Dong-A University , Busan 49315, Republic of Korea
| | - Sanghun Lee
- Department of Nanochemistry, Gachon University , Seongnam, Gyunggido 13120, Republic of Korea
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17
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Electrochemical determination of dopamine and acetaminophen using activated graphene-Nafion modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Sheng S, Chen G, Hu B, Yang R, Xu Y. Al 2 O 3 -surface modification of LiCoO 2 cathode with improved cyclic performance. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Oh J, Lee J, Hwang T, Kim JM, Seoung KD, Piao Y. Dual Layer Coating Strategy Utilizing N-doped Carbon and Reduced Graphene Oxide for High-Performance LiFePO 4 Cathode Material. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.185] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Ramos Ferrer P, Mace A, Thomas SN, Jeon JW. Nanostructured porous graphene and its composites for energy storage applications. NANO CONVERGENCE 2017; 4:29. [PMID: 29152447 PMCID: PMC5661008 DOI: 10.1186/s40580-017-0123-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 10/14/2017] [Indexed: 05/10/2023]
Abstract
Graphene, 2D atomic-layer of sp2 carbon, has attracted a great deal of interest for use in solar cells, LEDs, electronic skin, touchscreens, energy storage devices, and microelectronics. This is due to excellent properties of graphene, such as a high theoretical surface area, electrical conductivity, and mechanical strength. The fundamental structure of graphene is also manipulatable, allowing for the formation of an even more extraordinary material, porous graphene. Porous graphene structures can be categorized as microporous, mesoporous, or macroporous depending on the pore size, all with their own unique advantages. These characteristics of graphene, which are further explained in this paper, may be the key to greatly improving a wide range of applications in energy storage systems.
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Affiliation(s)
- Pablo Ramos Ferrer
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL 35487 USA
| | - Annsley Mace
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL 35487 USA
| | - Samantha N. Thomas
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL 35487 USA
| | - Ju-Won Jeon
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL 35487 USA
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21
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Guan Y, Feng Y, Mu Y, Fang L, Zhang H, Wang Y. Ultra-tiny ZnMn 2O 4 nanoparticles encapsulated in sandwich-like carbon nanosheets for high-performance supercapacitors. NANOTECHNOLOGY 2016; 27:475402. [PMID: 27775916 DOI: 10.1088/0957-4484/27/47/475402] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Known as an excellent energy storage material, ZnMn2O4 has a wide range of applications in supercapacitors. In this report, a special sandwich-like structure of ZnMn2O4/C has been first designed and synthesized via a simple hydrothermal method and subsequent calcinations. The designed special sandwich-like structure can benefit ion exchange and remit the probable volume changes during a mass of electrochemical reactions. Furthermore, the porous carbon nanosheets, derived from low-cost glucose, can effectively increase ion flux. Therefore, the novel sandwich-like ZnMn2O4 nanoparticles encapsulated in carbon nanosheets can undoubtedly demonstrate an exceptional electrochemical performance for SCs. In this work, the composite material with porous sandwich-like structure exhibits excellent cyclic stability for 5000 cycles (∼5% loss) and high specific capacitance of 1786 F g-1.
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Affiliation(s)
- Yongxin Guan
- The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, People's Republic of China
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22
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Graphene encapsulated spherical hierarchical superstructures self-assembled by LiFe0.75Mn0.25PO4 nanoplates for high-performance Li-ion batteries. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.140] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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The low temperature electrochemical performances of LiFePO 4 /C/graphene nanofiber with 3D-bridge network structure. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.09.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Xiong P, Zhu J, Zhang L, Wang X. Recent advances in graphene-based hybrid nanostructures for electrochemical energy storage. NANOSCALE HORIZONS 2016; 1:340-374. [PMID: 32260626 DOI: 10.1039/c5nh00134j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In recent years, graphene has emerged as a promising candidate for electrochemical energy storage applications due to its large specific surface area, high electrical conductivity, good chemical stability, and strong mechanical flexibility. Moreover, its unique two-dimensional (2D) nanostructure can be used as an ideal building block for controllable functionalization with other active components and the resulting graphene-based hybrids exhibit desirable properties for improved energy storage capability. This review summarizes the most recent progress on graphene and graphene-based hybrid nanostructures for three frontier electrochemical energy storage device applications, i.e., lithium-ion batteries, lithium-sulfur batteries and supercapacitors. Finally, we outline the future perspectives and trends in this research field including several challenges and opportunities.
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Affiliation(s)
- Pan Xiong
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing 210094, China.
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25
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Sodium insertion cathode material Na0.67[Ni0.4Co0.2Mn0.4]O2 with excellent electrochemical properties. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Song J, Sun B, Liu H, Ma Z, Chen Z, Shao G, Wang G. Enhancement of the Rate Capability of LiFePO4 by a New Highly Graphitic Carbon-Coating Method. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15225-15231. [PMID: 27238368 DOI: 10.1021/acsami.6b02567] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Low lithium ion diffusivity and poor electronic conductivity are two major drawbacks for the wide application of LiFePO4 in high-power lithium ion batteries. In this work, we report a facile and efficient carbon-coating method to prepare LiFePO4/graphitic carbon composites by in situ carbonization of perylene-3,4,9,10-tetracarboxylic dianhydride during calcination. Perylene-3,4,9,10-tetracarboxylic dianhydride containing naphthalene rings can be easily converted to highly graphitic carbon during thermal treatment. The ultrathin layer of highly graphitic carbon coating drastically increased the electronic conductivity of LiFePO4. The short pathway along the [010] direction of LiFePO4 nanoplates could decrease the Li(+) ion diffusion path. In favor of the high electronic conductivity and short lithium ion diffusion distance, the LiFePO4/graphitic carbon composites exhibit an excellent cycling stability at high current rates at room temperature and superior performance at low temperature (-20 °C).
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Affiliation(s)
- Jianjun Song
- Centre for Clean Energy Technology, School of Mathematics and Physical Sciences, Faculty of Science, University of Technology Sydney , Sydney, New South Wales 2007, Australia
| | - Bing Sun
- Centre for Clean Energy Technology, School of Mathematics and Physical Sciences, Faculty of Science, University of Technology Sydney , Sydney, New South Wales 2007, Australia
| | - Hao Liu
- Centre for Clean Energy Technology, School of Mathematics and Physical Sciences, Faculty of Science, University of Technology Sydney , Sydney, New South Wales 2007, Australia
| | | | | | | | - Guoxiu Wang
- Centre for Clean Energy Technology, School of Mathematics and Physical Sciences, Faculty of Science, University of Technology Sydney , Sydney, New South Wales 2007, Australia
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27
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Feng Y, Zhang H, Fang L, Mu Y, Wang Y. Uniquely Monodispersing NiFe Alloyed Nanoparticles in Three-Dimensional Strongly Linked Sandwiched Graphitized Carbon Sheets for High-Efficiency Oxygen Evolution Reaction. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00481] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yangyang Feng
- The State Key Laboratory
of Mechanical Transmissions and the School of Chemistry and Chemical
Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City 400044, People’s Republic of China
| | - Huijuan Zhang
- The State Key Laboratory
of Mechanical Transmissions and the School of Chemistry and Chemical
Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City 400044, People’s Republic of China
| | - Ling Fang
- The State Key Laboratory
of Mechanical Transmissions and the School of Chemistry and Chemical
Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City 400044, People’s Republic of China
| | - Yanping Mu
- The State Key Laboratory
of Mechanical Transmissions and the School of Chemistry and Chemical
Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City 400044, People’s Republic of China
| | - Yu Wang
- The State Key Laboratory
of Mechanical Transmissions and the School of Chemistry and Chemical
Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City 400044, People’s Republic of China
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28
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Wi S, Kim J, Park K, Lee S, Kang J, Kim KH, Nam S, Kim C, Park B. Evaluation of graphene-wrapped LiFePO4 as novel cathode materials for Li-ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra24514e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Well-connected graphene sheets acted as a conductive network enabling LiFePO4 crystallites to be reached by electrons from omnidirectional paths.
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Affiliation(s)
- Sungun Wi
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Jaewon Kim
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Kimin Park
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Sangheon Lee
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Joonhyeon Kang
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Kyung Hwan Kim
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
| | - Seunghoon Nam
- Department of Nano Mechanics
- Nano Mechanical Systems Research Division
- Korea Institute of Machinery and Materials (KIMM)
- Daejeon 34103
- Korea
| | - Chunjoong Kim
- School of Materials Science and Engineering
- Chungnam National University
- Daejeon 34134
- Korea
| | - Byungwoo Park
- WCU Hybrid Materials Program
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
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29
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Dutta D, Santhosha AL, Sood AK, Bhattacharyya AJ. Reducing Li-diffusion pathways via “adherence” of ultra-small nanocrystals of LiFePO4 on few-layer nanoporous holey-graphene sheets for achieving high rate capability. RSC Adv 2016. [DOI: 10.1039/c6ra20778b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A unique 3D configuration comprising ultra-small LFP particles “adhered” to few-layer reduced holey-graphene oxide sheets allows Li+-ions to traverse shorter non-tortuous pathways leading to excellent battery performance.
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Affiliation(s)
- Dipak Dutta
- Solid State and Structural Chemistry Unit
- Indian Institute of Science
- Bangalore-560012
- India
| | - A. L. Santhosha
- Solid State and Structural Chemistry Unit
- Indian Institute of Science
- Bangalore-560012
- India
| | - A. K. Sood
- Department of Physics
- Indian Institute of Science
- Bangalore-560012
- India
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30
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Zhang K, Lee JT, Li P, Kang B, Kim JH, Yi GR, Park JH. Conformal Coating Strategy Comprising N-doped Carbon and Conventional Graphene for Achieving Ultrahigh Power and Cyclability of LiFePO4. NANO LETTERS 2015; 15:6756-63. [PMID: 26389552 DOI: 10.1021/acs.nanolett.5b02604] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Surface carbon coating to improve the inherent poor electrical conductivity of lithium iron phosphate (LiFePO4, LFP) has been considered as most efficient strategy. Here, we also report one of the conventional methods for LFP but exhibiting a specific capacity beyond the theoretical value, ultrahigh rate performance, and excellent long-term cyclability: the specific capacity is 171.9 mAh/g (70 μm-thick electrode with ∼10 mg/cm(2) loading mass) at 0.1 C (17 mA/g) and retains 143.7 mAh/g at 10 C (1.7 A/g) and 95.8% of initial capacity at 10 C after 1000 cycles. It was found that the interior conformal N-C coating enhances the intrinsic conductivity of LFP nanorods (LFP NR) and the exterior reduced graphene oxide coating acts as an electrically conducting secondary network to electrically connect the entire electrode. The great electron transport mutually promoted with shorten Li diffusion length on (010) facet exposed LFP NR represents the highest specific capacity value recorded to date at 10 C and ultralong-term cyclability. This conformal carbon coating approach can be a promising strategy for the commercialization of LFP cathode in lithium ion batteries.
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Affiliation(s)
- Kan Zhang
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Jeong-Taik Lee
- SKKU Advanced Institute of Nanotechnology (SAINT) and School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Ping Li
- SKKU Advanced Institute of Nanotechnology (SAINT) and School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Byoungwoo Kang
- Department of Materials Science and Engineering, Eng 1-123, Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 790-784, Republic of Korea
| | - Jung Hyun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Gi-Ra Yi
- SKKU Advanced Institute of Nanotechnology (SAINT) and School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Jong Hyeok Park
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
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31
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A Simple Dip-coating Approach for Preparation of Three-dimensional Multilayered Graphene-Metal Oxides Hybrid Nanostructures as High Performance Lithium-Ion Battery Electrodes. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.171] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Wang B, Liu A, Abdulla WA, Wang D, Zhao XS. Desired crystal oriented LiFePO4 nanoplatelets in situ anchored on a graphene cross-linked conductive network for fast lithium storage. NANOSCALE 2015; 7:8819-8828. [PMID: 25908535 DOI: 10.1039/c5nr01831e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Electron transfer and lithium ion diffusion rates are the key factors limiting the lithium ion storage in anisotropic LiFePO4 electrodes. In this work, we employed a facile solvothermal method to synthesize a "platelet-on-sheet" LiFePO4/graphene composite (LFP@GNs), which is LiFePO4 nanoplatelets in situ grown on graphene sheets with highly oriented (010) facets of LiFePO4 crystals. Such a two-phase contact mode with graphene sheets cross-linked to form a three-dimensional porous network is favourable for both fast lithium ion and electron transports. As a result, the designed LFP@GNs displayed a high rate capability (∼56 mA h g(-1) at 60 C) and long life cycling stability (∼87% capacity retention over 1000 cycles at 10 C). For comparison purposes, samples ex situ modified with graphene (LFP/GNs) as well as pure LiFePO4 platelets (LFP) were also prepared and investigated. More importantly, the obtained LFP@GNs can be used as a basic unit for constructing more complex structures to further improve electrochemical performance, such as coating the exposed LFP surface with a thin layer of carbon to build a C@LFP@GN composite to further enhance its cycling stability (∼98% capacity retention over 1000 cycles at 10 C).
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Affiliation(s)
- Bo Wang
- Harbin Institute of Technology, School of Chemical Engineering and Technology, Xidazhi Street, 150001 Harbin, China.
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33
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Ma Z, Fan Y, Shao G, Wang G, Song J, Liu T. In situ catalytic synthesis of high-graphitized carbon-coated LiFePO4 nanoplates for superior Li-ion battery cathodes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2937-2943. [PMID: 25584530 DOI: 10.1021/am5084368] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The low electronic conductivity and one-dimensional diffusion channel along the b axis for Li ions are two major obstacles to achieving high power density of LiFePO4 material. Coating carbon with excellent conductivity on the tailored LiFePO4 nanoparticles therefore plays an important role for efficient charge and mass transport within this material. We report here the in situ catalytic synthesis of high-graphitized carbon-coated LiFePO4 nanoplates with highly oriented (010) facets by introducing ferrocene as a catalyst during thermal treatment. The as-obtained material exhibits superior performances for Li-ion batteries at high rate (100 C) and low temperature (-20 °C), mainly because of fast electron transport through the graphitic carbon layer and efficient Li(+)-ion diffusion through the thin nanoplates.
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Affiliation(s)
- Zhipeng Ma
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, China
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34
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Shu H, Chen M, Wen F, Fu Y, Liang Q, Yang X, Shen Y, Liu L, Wang X. Li fast ion conductive La0.56Li0.33TiO3 inlaid LiFePO4/C microspheres with enhanced high-rate performance as cathode materials. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.179] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Zhang Z, Zhang Z, Chen W, Wang G, Li J, Lai Y. Enhancing the high-rate performance of LiFePO4batteries using carbonized-filter paper as an interlayer. NEW J CHEM 2015. [DOI: 10.1039/c4nj02388a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rate performance of LiFePO4batteries is improved by inserting a conductive and porous interlayer between the cathode and the separator.
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Affiliation(s)
- Zhian Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Zhiyong Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Wei Chen
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Guanchao Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Jie Li
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Yanqing Lai
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
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36
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Mei R, Yang Y, Song X, An Z, Zhang J. Triple carbon coated LiFePO4 composite with hierarchical conductive architecture as high-performance cathode for Li-ion batteries. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.05.131] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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37
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Ha SH, Lee YJ. Core-Shell LiFePO4/Carbon-Coated Reduced Graphene Oxide Hybrids for High-Power Lithium-Ion Battery Cathodes. Chemistry 2014; 21:2132-8. [DOI: 10.1002/chem.201404952] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Indexed: 11/08/2022]
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38
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Sun W, Wang Y. Graphene-based nanocomposite anodes for lithium-ion batteries. NANOSCALE 2014; 6:11528-52. [PMID: 25177843 DOI: 10.1039/c4nr02999b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Graphene-based nanocomposites have been demonstrated to be promising high-capacity anodes for lithium ion batteries to satisfy the ever-growing demands for higher capacity, longer cycle life and better high-rate performance. Synergetic effects between graphene and the introduced second-phase component are generally observed. In this feature review article, we will focus on the recent work on four different categories of graphene-based nanocomposite anodes by us and others: graphene-transitional metal oxide, graphene-Sn/Si/Ge, graphene-metal sulfide, and graphene-carbon nanotubes. For the supported materials on graphene, we will emphasize the non-zero dimensional (non-particle) morphologies such as two dimensional nanosheet/nanoplate and one dimensional nanorod/nanofibre/nanotube morphologies. The synthesis strategies and lithium-ion storage properties of these highlighted electrode morphologies are distinct from those of the commonly obtained zero dimensional nanoparticles. We aim to stress the importance of structure matching in the composites and their morphology-dependent lithium-storage properties and mechanisms.
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Affiliation(s)
- Weiwei Sun
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, P. R. China. yongwang@ shu.edu.cn
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39
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Wei W, Gao S, Yang Z, Guo L. Porous micro-spherical LiFePO4/graphene nanocomposites for high-performance Li ion battery cathode materials. RSC Adv 2014. [DOI: 10.1039/c4ra11453a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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40
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Gui Y, Yuan J, Wang W, Zhao J, Tian J, Xie B. Facile Solvothermal Synthesis and Gas Sensitivity of Graphene/WO₃ Nanocomposites. MATERIALS 2014; 7:4587-4600. [PMID: 28788695 PMCID: PMC5455935 DOI: 10.3390/ma7064587] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 06/09/2014] [Accepted: 06/09/2014] [Indexed: 11/16/2022]
Abstract
Graphene has attracted enormous attention owing to its extraordinary properties, while graphene-based nanocomposites hold promise for many applications. In this paper, we present a two-step exploitation method for preparation of graphene oxides and a facile solvothermal route for preparation of few-layer graphene nanosheets and graphene/WO3 nanocomposites in an ethanol-distilled water medium. The as-synthesized samples were characterized by using field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), ultraviolet-visible (UV-vis) spectroscopy, Raman spectroscopy, X-ray diffraction (XRD), thermogravimetric-differential thermal analysis (TG-DTA) and gas-sensing test. The resistivity of the thick-film gas sensors based on sandwich-like graphene/WO3 nanocomposites can be controlled by varying the amount of graphene in the composites. Graphene/WO3 nanocomposites with graphene content higher than 1% show fast response, high selectivity and fine sensitivity to NOx.
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Affiliation(s)
- Yanghai Gui
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China.
| | - Junhua Yuan
- College of Life Sciences and Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.
| | - Weiming Wang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China.
| | - Jianbo Zhao
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China.
| | - Junfeng Tian
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China.
| | - Bing Xie
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China.
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41
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Porous structure SnSb/amorphous carbon core-shell composite as high capacity anode materials for lithium ion batteries. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2511-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Kim W, Ryu W, Han D, Lim S, Eom J, Kwon H. Fabrication of graphene embedded LiFePO₄ using a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4731-4736. [PMID: 24621267 DOI: 10.1021/am405335k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have designed a unique microstructure of graphene embedded LiFePO4 by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO4 and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO4 fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO4 as a cathode material for high power lithium-ion batteries.
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Affiliation(s)
- WonKeun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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43
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Wang B, Xu B, Liu T, Liu P, Guo C, Wang S, Wang Q, Xiong Z, Wang D, Zhao XS. Mesoporous carbon-coated LiFePO4 nanocrystals co-modified with graphene and Mg2+ doping as superior cathode materials for lithium ion batteries. NANOSCALE 2014; 6:986-995. [PMID: 24287590 DOI: 10.1039/c3nr04611g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, mesoporous carbon-coated LiFePO4 nanocrystals further co-modified with graphene and Mg(2+) doping (G/LFMP) were synthesized by a modified rheological phase method to improve the speed of lithium storage as well as cycling stability. The mesoporous structure of LiFePO4 nanocrystals was designed and realized by introducing the bead milling technique, which assisted in forming sucrose-pyrolytic carbon nanoparticles as the template for generating mesopores. For comparison purposes, samples modified only with graphene (G/LFP) or Mg(2+) doping (LFMP) as well as pure LiFePO4 (LFP) were also prepared and investigated. Microscopic observation and nitrogen sorption analysis have revealed the mesoporous morphologies of the as-prepared composites. X-ray diffraction (XRD) and Rietveld refinement data demonstrated that the Mg-doped LiFePO4 is a single olivine-type phase and well crystallized with shortened Fe-O and P-O bonds and a lengthened Li-O bond, resulting in an enhanced Li(+) diffusion velocity. Electrochemical properties have also been investigated after assembling coin cells with the as-prepared composites as the cathode active materials. Remarkably, the G/LFMP composite has exhibited the best electrochemical properties, including fast lithium storage performance and excellent cycle stability. That is because the modification of graphene provided active sites for nuclei, restricted the in situ crystallite growth, increased the electronic conductivity and reduced the interface reaction current density, while, Mg(2+) doping improved the intrinsically electronic and ionic transfer properties of LFP crystals. Moreover, in the G/LFMP composite, the graphene component plays the role of "cushion" as it could quickly realize capacity response, buffering the impact to LFMP under the conditions of high-rate charging or discharging, which results in a pre-eminent rate capability and cycling stability.
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Affiliation(s)
- Bo Wang
- Harbin Institute of Technology, School of Chemical Engineering and Technology, Xidazhi Street, 150001 Harbin, China.
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Yu SH, Guo X, Ling D, Chung DY, Jin A, Shokouhimehr M, Hyeon T, Sung YE. Facile synthesis of nanostructured carbon nanotube/iron oxide hybrids for lithium-ion battery anodes. RSC Adv 2014. [DOI: 10.1039/c4ra05945j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanostructured carbon nanotubes/iron oxide hybrids (CNIOHs) were synthesized by a scalable Bake-Break-Mix process which involves three simple steps.
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Affiliation(s)
- Seung-Ho Yu
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Xiaohui Guo
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- The College of Chemistry & Materials Science
- Northwest University of China
- Xi'an 710069, P. R. China
| | - Daishun Ling
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Dong Young Chung
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Aihua Jin
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Mohammadreza Shokouhimehr
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Taeghwan Hyeon
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
| | - Yung-Eun Sung
- Center for Nanoparticle Research
- Institute for Basic Science (IBS)
- Seoul 151-742, Republic of Korea
- School of Chemical and Biological Engineering
- Seoul National University
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