Anion receptor-coated separator for lithium-ion polymer battery |
| |
Authors: | Je An Lee Jun Young Lee Myung Hyun Ryou Gi-Beom Han Je-Nam Lee Dong-Jin Lee Jung-Ki Park Yong Min Lee |
| |
Institution: | (1) Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea;(2) Department of Applied Chemistry, Hanbat National University, San 16-1, Deokmyeong-dong, Yuseong-gu, Daejeon, 305-719, Republic of Korea; |
| |
Abstract: | Anion receptor-coated separators were prepared by coating poly(ethylene glycol) borate ester (PEGB) as an anion receptor and
poly(vinyl acetate) (PVAc) as a good adhesive material towards electrodes onto microporous polyethylene (PE) separators. Gel
polymer electrolytes were fabricated by soaking them in an liquid electrolyte, 1 M LiPF6 in EC/DEC/PC (30/65/5, wt.%). As the weight ratio of PEGB to PVAc in a coating layer increased, gel polymer electrolytes
showed higher cationic conductivity and electrochemical stability. The cationic conductivity and electrochemical stability
of the gel polymer electrolyte based on coated separator with PVAc/PEGB (2/5, weight ratio) could reach 2.8 × 10–4 S cm–1 and 4.8 V, respectively. Lithium-ion polymer cells (LiCoO2/graphite) based on gel polymer electrolytes with and without PEGB were assembled, and their electrochemical performances
were evaluated. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|