1
|
Ren Y, Liu L, Wang Z, Li D, Chen Y. Fabrication of Single-Particle Microelectrodes and Their Electrochemical Properties. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20981-20987. [PMID: 35486451 DOI: 10.1021/acsami.2c02231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Compared with traditional centimeter-level electrodes, microelectrodes exhibit a small reaction area, high sensitivity, fast mass transfer rate, and low polarization current. However, current microelectrode preparation processes are very complicated and costly. Herein, we proposed a facile and universal method for fabricating single-particle microelectrodes. In the precursor solution, polyvinyl alcohol and ammonia were introduced as the polymeric binder and pore-forming agent, respectively. Through spaying-drying-sintering processes, the single-particle microelectrodes were successfully prepared for Li4Ti5O12 (LTO), LiCrTiO4 (LCTO), and LiFePO4/C (LFP/C), which showed excellent electrochemical properties. Furthermore, the single-particle microelectrode can be adopted to study the electrochemical oscillations of Li-ion batteries and assemble a full-cell microbattery as a potential next-generation microscale power source.
Collapse
Affiliation(s)
- Yuanyuan Ren
- State Key Laboratory of Marine Resource Utilization in South China Sea, Key Laboratory of Research on Utilization of Si-Zr-Ti Resources of Hainan Province, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Limin Liu
- State Key Laboratory of Marine Resource Utilization in South China Sea, Key Laboratory of Research on Utilization of Si-Zr-Ti Resources of Hainan Province, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Zhen Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Key Laboratory of Research on Utilization of Si-Zr-Ti Resources of Hainan Province, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - De Li
- State Key Laboratory of Marine Resource Utilization in South China Sea, Key Laboratory of Research on Utilization of Si-Zr-Ti Resources of Hainan Province, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Yong Chen
- Guangdong Key Laboratory for Hydrogen Energy Technologies; School of Materials Science and Hydrogen Energy, Foshan University, Foshan 528000, China
| |
Collapse
|
2
|
Li Z, Yang J, Guang T, Fan B, Zhu K, Wang X. Controlled Hydrothermal/Solvothermal Synthesis of High-Performance LiFePO 4 for Li-Ion Batteries. SMALL METHODS 2021; 5:e2100193. [PMID: 34927913 DOI: 10.1002/smtd.202100193] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/15/2021] [Indexed: 06/14/2023]
Abstract
The sluggish Li-ion diffusivity in LiFePO4 , a famous cathode material, relies heavily on the employment of a broad spectrum of modifications to accelerate the slow kinetics, including size and orientation control, coating with electron-conducting layer, aliovalent ion doping, and defect control. These strategies are generally implemented by employing the hydrothermal/solvothermal synthesis, as reflected by the hundreds of publications on hydrothermal/solvothermal synthesis in recent years. However, LiFePO4 is far from the level of controllable preparation, due to the lack of the understanding of the relations between the synthesis condition and the nucleation-and-growth of LiFePO4 . In this paper, the recent progress in controlled hydrothermal/solvothermal synthesis of LiFePO4 is first summarized, before an insight into the relations between the synthesis condition and the nucleation-and-growth of LiFePO4 is obtained. Thereafter, a review over surface decoration, lattice substitution, and defect control is provided. Moreover, new research directions and future trends are also discussed.
Collapse
Affiliation(s)
- Zhaojin Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- Hebei Key Laboratory of Flexible Functional Materials, School of Materials Science and Engineering, Hebei University of Science and Technology, Hebei, 050018, China
| | - Jinxing Yang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Tianjia Guang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Bingbing Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Kongjun Zhu
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Xiaohui Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| |
Collapse
|
3
|
Abstract
Among the compounds of the olivine family, LiMPO4 with M = Fe, Mn, Ni, or Co, only LiFePO4 is currently used as the active element of positive electrodes in lithium-ion batteries. However, intensive research devoted to other elements of the family has recently been successful in significantly improving their electrochemical performance, so that some of them are now promising for application in the battery industry and outperform LiFePO4 in terms of energy density, a key parameter for use in electric vehicles in particular. The purpose of this review is to acknowledge the current state of the art and the progress that has been made recently on all the elements of the family and their solid solutions. We also discuss the results from the perspective of their potential application in the industry of Li-ion batteries.
Collapse
|
4
|
A comparative study on LiFePO4/C by in-situ coating with different carbon sources for high-performance lithium batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.127] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
5
|
Yang CC, Hsu YH, Shih JY, Wu YS, Karuppiah C, Liou TH, Lue SJ. Preparation of 3D micro/mesoporous LiFePO4 composite wrapping with porous graphene oxide for high-power lithium ion battery. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.126] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Liu H, Ren L, Li J, Tuo H. Iron-assisted carbon coating strategy for improved electrochemical LiMn0.8Fe0.2PO4 cathodes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
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.
Collapse
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
| |
Collapse
|
8
|
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).
Collapse
Affiliation(s)
- Bo Wang
- Harbin Institute of Technology, School of Chemical Engineering and Technology, Xidazhi Street, 150001 Harbin, China.
| | | | | | | | | |
Collapse
|
9
|
OKADA D, SUGIKI T, UEMATSU K, ITADANI A, TODA K, SATO M, YAMAGUCHI T, ARIMITSU N, NISHIKAWA S. Electrochemical Properties of LiFePO 4 Cathode Materials Coated with Newly Developed Carbon Black. ELECTROCHEMISTRY 2015. [DOI: 10.5796/electrochemistry.83.858] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Dai OKADA
- Graduate School of Science and Technology, Niigata University
| | - Takuma SUGIKI
- Graduate School of Science and Technology, Niigata University
| | - Kazuyoshi UEMATSU
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
| | - Atsushi ITADANI
- Graduate School of Science and Technology, Niigata University
| | - Kenji TODA
- Graduate School of Science and Technology, Niigata University
| | - Mineo SATO
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
| | | | | | | |
Collapse
|
10
|
Li Y, Hao J, Geng G, Wang Y, Shang X, Yang C, Li B. Large-scale preparation of Mg doped LiFePO4@C for lithium ion batteries via carbon thermal reduction combined with aqueous rheological phase technology. RSC Adv 2015. [DOI: 10.1039/c5ra11680e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A uniform distribution of doped metal and coated carbon in the as-prepared LiFePO4material is obtained. The LiFePO4delivers a discharge capacity of 166 mA h g−1at 0.1C and presents excellent rate capacity and a high potential plateau at 1C.
Collapse
Affiliation(s)
- Yuanchao Li
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Jinghao Hao
- Department of Quality Examination and Management
- Henan University of Animal Husbandry and Economy
- Zhengzhou 450011
- P. R. China
| | - Guangwei Geng
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yafang Wang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Xiaokun Shang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Changchun Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Baojun Li
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| |
Collapse
|
11
|
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]
|