Optimisation of conductivity of PEO/PVDF-based solid polymer electrolytes in all-solid-state Li-ion batteries

被引：23
作者：
Li, Jun [1 ,2 ]
Zhu, Kongjun [1 ,2 ]
Wang, Jing [1 ]
Yan, Kang [1 ]
Liu, Jinsong [1 ,2 ]
Yao, Zhongran [1 ,2 ]
Xu, Yuan [1 ,2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing, Peoples R China
来源：
MATERIALS TECHNOLOGY | 2022年 / 37卷 / 04期
关键词：
All solid state; Li-ion battery; polymer electrolyte; polyethylene oxide; ionic conductivity; LITHIUM; PERFORMANCE;
D O I：
10.1080/10667857.2020.1827873
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
All-solid-state Li-ion batteries, have become increasingly important because of their highly reliable solid electrolyte materials. Flexible solid polyethylene oxide (PEO) based electrolytes have been widely studied. Nevertheless, this material exhibits low lithium-ion conductivity. Herein, we report the optimisation of the composition of PEO/polyvinylidene fluoride (PVDF)-based electrolytes to enhance ionic conductivity. When the weight ratio of lithium bis(trifluoromethane sulphonyl)imide and PEO/PVDF is 1:5 (LiTFSI:PEO/PVDF = 1:5), maximum conductivities are 2.98 x 10(-5)S cm(-1)at 30 degrees C and 5.56 x 10(-4)S cm(-1)at 60 degrees C. Furthermore, the all-solid-state battery using this solid electrolyte film, a Li metal anode, and a LiFePO(4)cathode delivers initial discharge capacities of 149.6 mAhg(-1)(0.1 C, 60 degrees C) and 130.2 mAh g(-1)(0.5 C, 60 degrees C). Meanwhile, the solid-state lithium battery also presents good cycling performance and excellent rate capability at 60 degrees C.
引用
收藏
页码：240 / 247
页数：8
相关论文
共 31 条
[1]   Solid electrolyte based on waterborne polyurethane and poly(ethylene oxide) blend polymer for all-solid-state lithium ion batteries [J].
Bao, Junjie ;
Qu, Xinbo ;
Qi, Guoqin ;
Huang, Qikai ;
Wu, Shufan ;
Tao, Can ;
Gao, Minghao ;
Chen, Chunhua .
SOLID STATE IONICS, 2018, 320 :55-63
[2]   Reciprocated Suppression of Polymer Crystallization Toward Improved Solid Polymer Electrolytes: Higher Ion Conductivity and Tunable Mechanical Properties [J].
Bi, Sheng ;
Sun, Che-Nan ;
Zawodzinski, Thomas A., Jr. ;
Ren, Fei ;
Keum, Jong Kahk ;
Ahn, Suk-Kyun ;
Li, Dawen ;
Chen, Jihua .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2015, 53 (20) :1450-1457
[3]  
Bouchet R, 2013, NAT MATER, V12, P452, DOI [10.1038/NMAT3602, 10.1038/nmat3602]
[4]   Enhanced performance of ionic-liquid-coated silica/quaternized poly(2,6-dimethyl-1,4-phenylene oxide) composite membrane for anion exchange membrane fuel cells [J].
Chen, Nanjun ;
Liu, Yang ;
Long, Chuan ;
Li, Rui ;
Wang, Fanghui ;
Zhu, Hong .
ELECTROCHIMICA ACTA, 2017, 258 :124-133
[5]   Thermal, electrical and mechanical properties of plasticized polymer electrolytes based on PEO/P(VDF-HFP) blends [J].
Fan, LZ ;
Dang, ZM ;
Nan, CW ;
Li, M .
ELECTROCHIMICA ACTA, 2002, 48 (02) :205-209
[6]   Recent developments in cathode materials for lithium ion batteries [J].
Fergus, Jeffrey W. .
JOURNAL OF POWER SOURCES, 2010, 195 (04) :939-954
[7]   A hybrid poly(ethylene oxide)/poly(vinylidene fluoride)/TiO2 nanoparticle solid-state redox electrolyte for dye-sensitized nanocrystalline solar cells [J].
Han, HW ;
Liu, W ;
Zhang, J ;
Zhao, XZ .
ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (12) :1940-1944
[8]  
Harry KJ, 2014, NAT MATER, V13, P69, DOI [10.1038/NMAT3793, 10.1038/nmat3793]
[9]   Flexible poly(ethylene carbonate)/garnet composite solid electrolyte reinforced by poly(vinylidene fluoride-hexafluoropropylene) for lithium metal batteries [J].
He, Zijian ;
Chen, Long ;
Zhang, Bochen ;
Liu, Yongchang ;
Fan, Li-Zhen .
JOURNAL OF POWER SOURCES, 2018, 392 :232-238
[10]  
Kamaya N, 2011, NAT MATER, V10, P682, DOI [10.1038/NMAT3066, 10.1038/nmat3066]
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