期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 20, 页码 17534-17542出版社
AMER CHEMICAL SOC
DOI: 10.1021/am503152m
关键词
lithium-ion batteries; porous architecture; energy storage; polymer electrolyte; battery performance
资金
- NUS
- POC grant from National Research Foundation of Singapore
- Singapore-Peking-Oxford Research Enterprise (SPORE)
- National Natural Science Foundation of China [21233006]
A novel protocol to generate and control porosity in polymeric structures is presented for fabrication of single ion polymer electrolyte (SIPE) membranes for lithium ion batteries. A series of SIPEs with varying ratios of aliphatic and aromatic segments was successfully synthesized and subsequently blended with PVDF-HFP to fabricate membranes of various sizes of pores. The membranes were characterized using techniques including SEM, solvent uptake capacity measurement and ionic conductivity. We demonstrate that appropriate membrane porosity enhances ionic conductivity, reduces interfacial resistance between electrodes and electrolyte and ultimately boosts performance of Li-ion batteries. The implication of the structure-performance relationship for battery design is discussed.
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