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Song YW, Kang SW, Heo K, Lee J, Kim MY, Hwang D, Kim SJ, Kim J, Lim J. Effect of Nanoparticles in LiFePO 4 Cathode Material Using Organic/Inorganic Composite Solid Electrolyte for All-Solid-State Batteries. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:45-52. [PMID: 36535725 DOI: 10.1021/acs.langmuir.2c01499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Herein, we report the effect of using nanoparticles of LiFePO4 on the electrochemical properties of all-solid-state batteries (ASSBs) with a solid electrolyte. LiFePO4 (LFP) cathode materials are promising cathode materials in polymer-based composite solid electrolytes because of their limited electrochemical window range. However, LFP cathodes exhibit poor electric conductivity and sluggish lithium ion diffusion. In addition, there is a disadvantage in that the interfacial resistance increases due to poor contact between the LFP cathode material and the solid electrolyte when composing the composite cathode. The nano-sized LFP cathode material increases the contact area between solid electrolyte in the positive electrode and enhances lithium ion diffusion. Therefore, the structural differences and electrochemical performance of these nanoscale LFP cathode materials in the ASSB were studied by X-ray diffraction, scanning electron microscopy, and electrochemical analysis.
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Affiliation(s)
- Young-Woong Song
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
- Department of Materials Science and Engineering, Chonnam National University, 300 Yongbongdong, Bukgu, Gwangju 61186, Republic of Korea
| | - Sung-Won Kang
- Department of Materials Science and Engineering, Chonnam National University, 300 Yongbongdong, Bukgu, Gwangju 61186, Republic of Korea
| | - Kookjin Heo
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
| | - Jongkwan Lee
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
| | - Min-Young Kim
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
| | - Dahee Hwang
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
- Department of Materials Science and Engineering, Chonnam National University, 300 Yongbongdong, Bukgu, Gwangju 61186, Republic of Korea
| | - Su-Jin Kim
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
- Department of Materials Science and Engineering, Chonnam National University, 300 Yongbongdong, Bukgu, Gwangju 61186, Republic of Korea
| | - Jaekook Kim
- Department of Materials Science and Engineering, Chonnam National University, 300 Yongbongdong, Bukgu, Gwangju 61186, Republic of Korea
| | - Jinsub Lim
- Korea Institute of Industrial Technology (KITECH), 6, Cheomdan-gwagiro 208-gil, Buk-gu, Gwangju 61012, Republic of Korea
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2
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Sengwa RJ, Patel VK, Saraswat M. Investigation on promising properties of PEO/PVP/LiTFSI solid polymer electrolytes for high-performance energy storage and next-generation flexible optoelectronic and iontronic devices. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03326-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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3
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Serra J, Fidalgo-Marijuan A, Barbosa JC, Correia DM, Gonçalves R, Porro JM, Lanceros-Mendez S, Costa CM. Lithium-Ion Battery Solid Electrolytes Based on Poly(vinylidene Fluoride)-Metal Thiocyanate Ionic Liquid Blends. ACS APPLIED POLYMER MATERIALS 2022; 4:5909-5919. [PMID: 36568737 PMCID: PMC9778058 DOI: 10.1021/acsapm.2c00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/01/2022] [Indexed: 06/17/2023]
Abstract
Solid polymer electrolytes (SPEs) are required to improve battery safety through the elimination of the liquid electrolyte solution in current batteries. This work is focused on the development of a hybrid SPE based on poly(vinylidene fluoride), PVDF, and 1-butyl-3-methylimidazolium cobalt(II) isothiocyanate, [BMIM]2[(SCN)4Co] magnetic ionic liquid (MIL), and its battery cycling behavior at room temperature. The addition of MIL in filler contents up to 40 wt % to the PVDF matrix does not influence the compact morphology of the samples obtained by solvent casting. The polar β-phase of PVDF increases with increasing MIL content, whereas the degree of crystallinity, thermal degradation temperature, and mechanical properties of the MIL/PVDF blends decrease with increasing MIL content. The ionic conductivity of the MIL/PVDF blends increases both with temperature and MIL content, showing the highest ionic conductivity of 7 × 10-4 mS cm-1 at room temperature for the MIL/PVDF blend with 40 wt % of MIL. The cathodic half-cells prepared with this blend as SPE show good reversibility and excellent cycling behavior at different C-rates, with a discharge capacity of 80 mAh g-1 at a C/10-rate with a Coulombic efficiency of 99%. The developed magnetic SPE, with excellent performance at room temperature, shows potential for the implementation of sustainable lithium-ion batteries, which can be further tuned by the application of an external magnetic field.
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Affiliation(s)
- João
P. Serra
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga 4710-057, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, Braga 4710-057, Portugal
| | - Arkaitz Fidalgo-Marijuan
- BCMaterials,
Basque Center for Materials, Applications and Nanostructures, UPV/EHU
Science Park, 48940 Leioa, Spain
- Department
of Organic and Inorganic Chemistry, University
of the Basque Country (UPV/EHU), 48940 Leioa, Spain
| | - João C. Barbosa
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga 4710-057, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, Braga 4710-057, Portugal
- Centre
of Chemistry, University of Trás-os-Montes
e Alto Douro, 5000-801 Vila Real, Portugal
| | - Daniela M. Correia
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga 4710-057, Portugal
- Centre
of Chemistry, University of Trás-os-Montes
e Alto Douro, 5000-801 Vila Real, Portugal
| | - Renato Gonçalves
- Centre of
Chemistry, University of Minho, 4710-057 Braga, Portugal
| | - José M. Porro
- BCMaterials,
Basque Center for Materials, Applications and Nanostructures, UPV/EHU
Science Park, 48940 Leioa, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
| | - Senentxu Lanceros-Mendez
- BCMaterials,
Basque Center for Materials, Applications and Nanostructures, UPV/EHU
Science Park, 48940 Leioa, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
| | - Carlos M. Costa
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga 4710-057, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, Braga 4710-057, Portugal
- Institute
of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
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4
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Wang H, Ke H, Wang J, Yan F, Cui X, Chen Y. Mechanism of enhanced lithium‐ion transport in solid polymer electrolytes assisted by ultrasonic vibration. J Appl Polym Sci 2022. [DOI: 10.1002/app.51960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hui Wang
- Key Laboratory of Functional Materials and Application of Fujian Province Xiamen University of Technology Xiamen China
- Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan China
| | - Haoran Ke
- Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan China
- Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan China
| | - Jinhuo Wang
- Key Laboratory of Functional Materials and Application of Fujian Province Xiamen University of Technology Xiamen China
| | - Fei Yan
- Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan China
| | - Xiaodong Cui
- Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan China
| | - Yizhe Chen
- Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan China
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Zheng X, Cong H, Yang T, Ji K, Wang C, Chen M. High-efficiency 2D nanosheet exfoliation by a solid suspension-improving method. NANOTECHNOLOGY 2022; 33:185602. [PMID: 35030544 DOI: 10.1088/1361-6528/ac4b7c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) materials with mono or few layers have wide application prospects, including electronic, optoelectronic, and interface functional coatings in addition to energy conversion and storage applications. However, the exfoliation of such materials is still challenging due to their low yield, high cost, and poor ecological safety in preparation. Herein, a safe and efficient solid suspension-improving method was proposed to exfoliate hexagonal boron nitride nanosheets (hBNNSs) in a large yield. The method entails adding a permeation barrier layer in the solvothermal kettle, thus prolonging the contact time between the solvent and hexagonal boron nitride (hBN) nanosheet and improving the stripping efficiency without the need for mechanical agitation. In addition, the proposed method selectively utilizes a matching solvent that can reduce the stripping energy of the material and employs a high-temperature steam shearing process. Compared with other methods, the exfoliating yield ofhBNNSs is up to 42.3% at 150 °C for 12 h, and the strategy is applicable to other 2D materials. In application, the ionic conductivity of a PEO/hBNNSs composite electrolytes reached 2.18 × 10-4S cm-1at 60 °C. Overall, a versatile and effective method for stripping 2D materials in addition to a new safe energy management strategy were provided.
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Affiliation(s)
- Xuewen Zheng
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Haifeng Cong
- School of Chemical Engineering and Technology Tianjin University, Tianjin 300072, People's Republic of China
| | - Ting Yang
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Kemeng Ji
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Chengyang Wang
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Mingming Chen
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
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6
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Composite solid electrolyte comprising poly(propylene carbonate) and Li1.5Al0.5Ge1.5(PO4)3 for long-life all-solid-state Li-ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Design, fabrication and application of PEO/CMC-Li @PI hybrid polymer electrolyte membrane in all-solid-state lithium battery. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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LaCoste J, Li Z, Xu Y, He Z, Matherne D, Zakutayev A, Fei L. Investigating the Effects of Lithium Phosphorous Oxynitride Coating on Blended Solid Polymer Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40749-40758. [PMID: 32786244 PMCID: PMC10905425 DOI: 10.1021/acsami.0c09113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Solid-state electrolytes are very promising to enhance the safety of lithium-ion batteries. Two classes of solid electrolytes, polymer and ceramic, can be combined to yield a hybrid electrolyte that can synergistically combine the properties of both materials. Chemical stability, thermal stability, and high mechanical modulus of ceramic electrolytes against dendrite penetration can be combined with the flexibility and ease of processing of polymer electrolytes. By coating a polymer electrolyte with a ceramic electrolyte, the stability of the solid electrolyte is expected to improve against lithium metal, and the ionic conductivity could remain close to the value of the original polymer electrolyte, as long as an appropriate thickness of the ceramic electrolyte is applied. Here, we report a bilayered lithium-ion conducting hybrid solid electrolyte consisting of a blended polymer electrolyte (BPE) coated with a thin layer of the inorganic solid electrolyte lithium phosphorous oxynitride (LiPON). The hybrid system was thoroughly studied. First, we investigated the influence of the polymer chain length and lithium salt ratio on the ionic conductivity of the BPE based on poly(ethylene oxide) (PEO) and poly(propylene carbonate) (PPC) with the salt lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The optimized BPE consisted of 100 k molecular weight PEO, 50 k molecular weight PPC, and 25(w/w)% LiTFSI, (denoted as PEO100PPC50LiTFSI25), which exhibited an ionic conductivity of 2.11 × 10-5 S/cm, and the ionic conductivity showed no thermal memory effects as the PEO crystallites were well disrupted by PPC and LiTFSI. Second, the effects of LiPON coating on the BPE were evaluated as a function of thickness down to 20 nm. The resulting bilayer structure showed an increase in the voltage window from 5.2 to 5.5 V (vs Li/Li+) and thermal activation energies that approached the activation energy of the BPE when thinner LiPON layers were used, resulting in similar ionic conductivities for 30 nm LiPON coatings on PEO100PPC50LiTFSI25. Coating BPEs with a thin layer of LiPON is shown to be an effective strategy to improve the long-term stability against lithium.
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Affiliation(s)
- Jed LaCoste
- National
Renewable Energy Laboratory, Materials Science Center, Golden, Colorado 80401, United States
- Department
of Chemical Engineering, Institute for Materials Research and Innovation, University of Louisiana Lafayette, Lafayette, Louisiana 70504, United States
| | - Zhifei Li
- National
Renewable Energy Laboratory, Materials Science Center, Golden, Colorado 80401, United States
| | - Yun Xu
- National
Renewable Energy Laboratory, Materials Science Center, Golden, Colorado 80401, United States
| | - Zizhou He
- Department
of Chemical Engineering, Institute for Materials Research and Innovation, University of Louisiana Lafayette, Lafayette, Louisiana 70504, United States
| | - Drew Matherne
- Department
of Chemical Engineering, Institute for Materials Research and Innovation, University of Louisiana Lafayette, Lafayette, Louisiana 70504, United States
| | - Andriy Zakutayev
- National
Renewable Energy Laboratory, Materials Science Center, Golden, Colorado 80401, United States
| | - Ling Fei
- National
Renewable Energy Laboratory, Materials Science Center, Golden, Colorado 80401, United States
- Department
of Chemical Engineering, Institute for Materials Research and Innovation, University of Louisiana Lafayette, Lafayette, Louisiana 70504, United States
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9
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Barbosa JC, Correia DM, Gonçalves R, de Zea Bermudez V, Silva MM, Lanceros-Mendez S, Costa CM. Enhanced ionic conductivity in poly(vinylidene fluoride) electrospun separator membranes blended with different ionic liquids for lithium ion batteries. J Colloid Interface Sci 2020; 582:376-386. [PMID: 32861042 DOI: 10.1016/j.jcis.2020.08.046] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/31/2022]
Abstract
Electrospun poly(vinylidene fluoride) (PVDF) fiber membranes doped with different ionic liquids (ILs) and sharing the same anion were produced and their potential as separator membranes for battery applications was evaluated. Different types of ILs containing the same anion, bis(trifluoromethylsulfonyl)imide [TFSI]-, were used with IL concentrations ranging between 0 and 15 wt% The morphology, microstructure, thermal and electrical properties (ionic conductivity and electrochemical window) of the membranes were evaluated. The presence of ILs in the PVDF polymer matrix influences the fiber diameter and the content of the polar β phase within the polymer, as well as the degree of crystallinity. The thermal stability of the membranes decreases with the incorporation of IL. Impedance spectroscopy tests show a maximum ionic conductivity of 2.8 mS.cm-1 for 15% of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Emim][TFSI]) at room temperature. The electrochemical stability of the samples ranges from 0.0 to 6.0 V. When evaluated as battery separator membranes in C-LiFePO4 half-cells, a maximum discharge capacity of 119 mAh.g-1 at C-rate was obtained for the PVDF membrane with 15% [Emim][TFSI], with a coulombic efficiency close to 100%. The results demonstrate that the produced electrospun membranes are suitable for applications as separators for lithium ion batteries (LIBs).
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Affiliation(s)
- J C Barbosa
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - D M Correia
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - R Gonçalves
- Center of Chemistry, University of Minho, 4710-058 Braga, Portugal
| | - V de Zea Bermudez
- Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - M M Silva
- Center of Chemistry, University of Minho, 4710-058 Braga, Portugal
| | - S Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain.
| | - C M Costa
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Center of Chemistry, University of Minho, 4710-058 Braga, Portugal.
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Fan H, Yang C, Wang X, Liu L, Wu Z, Luo J, Liu R. UV-curable PVdF-HFP-based gel electrolytes with semi-interpenetrating polymer network for dendrite-free Lithium metal batteries. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114308] [Citation(s) in RCA: 13] [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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11
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Gao L, Li J, Sarmad B, Cheng B, Kang W, Deng N. A 3D polyacrylonitrile nanofiber and flexible polydimethylsiloxane macromolecule combined all-solid-state composite electrolyte for efficient lithium metal batteries. NANOSCALE 2020; 12:14279-14289. [PMID: 32609141 DOI: 10.1039/d0nr04244g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
All-solid-state polymer electrolytes have received widespread attention due to their superior safety over liquid electrolytes that are prone to leaks. However, poor ionic conductivity and uncontrollable lithium dendrite growth have greatly limited the rapid development of polymer electrolytes. Hence, we report a composite polymer electrolyte combining a polyacrylonitrile (PAN) electrospun fiber membrane, flexible polydimethylsiloxane (PDMS) macromolecules and a polyethylene oxide (PEO) polymer. The introduction of PDMS with a highly flexible molecular chain, ultra-low glass transition energy and high free volume can help optimize lithium ion migration paths and improve the interface compatibility between the electrolyte and the electrode. In addition, the nano-network structure of the PAN nanofiber membrane can promote the interaction between adjacent polymer molecular chains and improve the mechanical properties of the composite electrolyte to suppress the lithium dendrite growth. The synergistic effect of the PDMS and PAN electrospun nanofiber membranes endows the composite electrolyte with superior ionic conductivity and excellent electrochemical stability towards lithium metal. The interface impedance of the Li/Li symmetric battery with the composite electrolyte after 15 days of continuous standing has no significant change compared with the initial state, and the battery can maintain stable cycling for 1200 h without short circuit under a dynamic current of 0.3 mA cm-2. The obtained composite polymer electrolyte has potential application prospects in the field of high-energy lithium metal batteries.
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Affiliation(s)
- Lu Gao
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China.
| | - Jianxin Li
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China. and School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Bushra Sarmad
- School of International Education, Tiangong University, Tianjin 300387, PR China
| | - Bowen Cheng
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China. and School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Weimin Kang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China.
| | - Nanping Deng
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China. and School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
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Wei Z, Ren Y, Wang M, He J, Huo W, Tang H. Improving the Conductivity of Solid Polymer Electrolyte by Grain Reforming. NANOSCALE RESEARCH LETTERS 2020; 15:122. [PMID: 32458218 PMCID: PMC7251041 DOI: 10.1186/s11671-020-03355-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/17/2020] [Indexed: 06/01/2023]
Abstract
Polyethylene oxide (PEO)-based solid polymer electrolyte (SPE) is considered to have great application prospects in all-solid-state li-ion batteries. However, the application of PEO-based SPEs is hindered by the relatively low ionic conductivity, which strongly depends on its crystallinity and density of grain boundaries. In this work, a simple and effective press-rolling method is applied to reduce the crystallinity of PEO-based SPEs for the first time. With the rolled PEO-based SPE, the LiFePO4/SPE/Li all-solid li-ion battery delivers a superior rechargeable specific capacity of 162.6 mAh g-1 with a discharge-charge voltage gap of 60 mV at a current density of 0.2 C with a much lower capacity decay rate. The improvement of electrochemical properties can be attributed to the press-rolling method, leading to a doubling conductivity and reduced activation energy compared with that of electrolyte prepared by traditional cast method. The present work provides an effective and easy-to-use grain reforming method for SPE, worthy of future application.
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Affiliation(s)
- Zhaohuan Wei
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China.
- Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Yaqi Ren
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Minkang Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Jijun He
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Weirong Huo
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Hui Tang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China.
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13
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Luo C, Huang Y, Huang Y, Li X, Wang M, Lin Y. A Composited Interlayer with Dual‐Effect Trap and Repulsion for Inhibition of Polysulfides in Lithium‐Sulfur Batteries. ChemElectroChem 2020. [DOI: 10.1002/celc.202000241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chen Luo
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
| | - Yixuan Huang
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
| | - Yun Huang
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
- The Center of Functional Materials for Working Fluids of Oil and Gas FieldSouthwest Petroleum University Chengdu 610500 China
| | - Xing Li
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
| | - Mingshan Wang
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
| | - Yuanhua Lin
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 China
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14
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Han Q, Wang S, Jiang Z, Hu X, Wang H. Composite Polymer Electrolyte Incorporating Metal-Organic Framework Nanosheets with Improved Electrochemical Stability for All-Solid-State Li Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20514-20521. [PMID: 32283913 DOI: 10.1021/acsami.0c03430] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Composite polymer electrolytes using polyethylene oxide (PEO) are highly appealing by virtue of the fine electrochemical stability, inexpensiveness, and easy fabrication. However, their practical application is currently hindered by the insufficient room-temperature ionic conductivity. Herein, nickel-based ultrathin metal-organic framework nanosheets (NMS) are first introduced as a novel 2D filler into the PEO matrix. The introduction of NMS with a high aspect ratio effectively improves the amorphous region proportion of PEO and thus enhances the ionic conductivity of the electrolyte by 1 order of magnitude. In addition, the Lewis acid-base interactions between the surface-coordinated unsaturated Ni atoms in NMS and the anions of lithium salt could promote the dissociation of lithium salt. Hence, the composite electrolyte with NMS achieves a high Li+ transference value of 0.378. Along with the unique nanostructure of NMS, this NMS composite electrolyte also suppresses Li dendrite growth during cycling. As a result, the assembled all-solid-state Li/LiFePO4 battery demonstrates a high reversible capacity of 130 mA h g-1 at 0.1 C and 30 °C for 50 cycles.
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Affiliation(s)
- Qingyue Han
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Suqing Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhouyang Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xinchao Hu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Haihui Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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Feng J, Ao X, Lei Z, Wang J, Deng Y, Wang C. Hollow nanotubular clay composited comb-like methoxy poly(ethylene glycol) acrylate polymer as solid polymer electrolyte for lithium metal batteries. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135995] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Sengwa R, Dhatarwal P. Predominantly chain segmental relaxation dependent ionic conductivity of multiphase semicrystalline PVDF/PEO/LiClO4 solid polymer electrolytes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135890] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Ai S, Wang T, Li T, Wan Y, Xu X, Lu H, Qu T, Luo S, Jiang J, Yu X, Zhou D, Li L. A Chitosan/Poly(ethylene oxide)‐Based Hybrid Polymer Composite Electrolyte Suitable for Solid‐State Lithium Metal Batteries. ChemistrySelect 2020. [DOI: 10.1002/slct.202000260] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shun Ai
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and EngineeringWuhan Institute of Technology Wuhan 430205 PR China
| | - Tianyi Wang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Tao Li
- Neutron Scattering Technical Engineering Research Center & School of Mechanical EngineeringDongguan University of Technology Dongguan 523808 China
| | - Yuanxin Wan
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Xiaoqian Xu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Hongyan Lu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Tengfei Qu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Shaochuan Luo
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Jing Jiang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Xianghua Yu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and EngineeringWuhan Institute of Technology Wuhan 430205 PR China
| | - Dongshan Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shenzhen R&D Center, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology, MOENanjing University Nanjing 210023 China
| | - Liang Li
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and EngineeringWuhan Institute of Technology Wuhan 430205 PR China
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Abstract
In this paper, a network of 37 fiber Bragg grating (FBG) sensors is proposed for real-time, in situ, and operando multipoint monitoring of the surface temperature distribution on a pack of three prismatic lithium polymer batteries (LiPBs). Using the network, a spatial and temporal thermal mapping of all pack interfaces was performed. In each interface, nine strategic locations were monitored by considering a three-by-three matrix, corresponding to the LiPBs top, middle and bottom zones. The batteries were subjected to charge and discharge cycles, where the charge was carried out at 1.0 C, whereas the discharge rates were 0.7 C and 1.4 C. The results show that in general, a thermal gradient is recognized from the top to the bottom, but is less prominent in the end-of-charge steps. The results also indicate the presence of hot spots between two of the three batteries, which were located near the positive tab collector. This occurs due to the higher current density of the lithium ions in this area. The presented FBG sensing network can be used to improve the thermal management of batteries by performing a spatiotemporal thermal mapping, as well as by identifying the zones which are more conducive to the possibility of the existence of hot spots, thereby preventing severe consequences such as thermal runaway and promoting their safety. To our knowledge, this is the first time that a spatial and temporal thermal mapping is reported for this specific application using a network of FBG sensors.
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