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Microporous PVDF-PMMA Blend-Based Gel Polymer Electrolyte for Electrochemical Applications: Effect of PMMA on Electrochemical and Structural Properties
被引:13
|作者:
Verma, Harshlata
[1
]
Mishra, Kuldeep
[2
]
Rai, D. K.
[1
]
机构:
[1] Jaypee Inst Informat Technol, Dept Phys & Mat Sci & Engn, Noida 201309, India
[2] Jaypee Univ, Dept Phys & Mat Sci, Bulandshahr 203390, India
关键词:
PVDF/PMMA blend;
ionic liquid;
polymer electrolyte;
Na+ ion conductor;
phase inversion;
IONIC LIQUID;
DIELECTRIC-PROPERTIES;
RECHARGEABLE BATTERY;
ENERGY-STORAGE;
CAPACITY FADE;
BETA-PHASE;
CONDUCTIVITY;
PHOSPHORUS;
MEMBRANES;
NANOPARTICLES;
D O I:
10.1007/s11664-021-09314-8
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
This paper presents a study on a porous poly(methyl methacrylate) (PMMA)/polyvinylidene fluoride (PVDF) blend-based gel polymer electrolyte, activated in a liquid electrolyte of sodium tetrafluoroborate (NaBF4) in 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) ionic liquid. The optimized membrane shows porosity and liquid electrolyte uptake of 59% and 187%, respectively, and a maximum ionic conductivity of similar to 0.8 mS cm(-1). The membrane shows a Na + ion transport number of 0.21 and an electrochemical stability window of similar to 5.5 V. A prototype battery using the optimized membrane delivers a discharge capacity of 130 mA h g(-1) at a drain current of 25 mA g(-1). [GRAPHICS] .
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页码:635 / 651
页数:17
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