| 第一作者： | Xu, GJ (Xu, Gaojie); Zhao, M (Zhao, Min); Xie, B (Xie, Bin); Wang, X (Wang, Xiao); Jiang, MM (Jiang, Miaomiao); Guan, P (Guan, Peng); Han, PX (Han, Pengxian); Cui, GL (Cui, Guanglei); |
|---|---|
| 联系作者： | Xu, GJ (Xu, Gaojie); Zhao, M (Zhao, Min); Xie, B (Xie, Bin); Wang, X (Wang, Xiao); Jiang, MM (Jiang, Miaomiao); Guan, P (Guan, Peng); Han, PX (Han, Pengxian); Cui, GL (Cui, Guanglei); |
| 发表年度： | 2021 |
| 卷： | 499 |
| 页： | - |
| 摘要： | Presently, the commercial applications of gel polymer electrolytes (GPEs) in Li-ion batteries (LIBs) is still limited. Here, a novel large-scale feasible poly(vinyl acetate) (PVAc) incorporating poly(vinylidene fluoride)-cohexafluoropropylene (PVDF-HFP)/SiO2 membrane is prepared by a simple solution casting method. Then, the dry membrane is directly swollen by LiPF6-carbonate based electrolyte to obtain a rigid-flexible coupling GPE. The solubility of PVAc into electrolyte is greatly alleviated due to the intermolecular complexation between PVAc and PVDF-HFP. This PVAc/PVDF-HFP/SiO2 based GPE enables LiNi0.5Co0.2Mn0.3O2 (NCM523)/mesocarbon microbeads (MCMB) full cell with excellent cycling stability and rate capability. Based on conventional hot calendar `Bellcore" technology, a NCM523/MCMB pouch cell prototype using this GPE is successfully fabricated, demonstrating both excellent flexibility and high tolerance to mechanical abuse. By saving the complicated pore-regulating procedure, the design concept of rigid-flexible coupling GPE will provide new perspective on the promotion of conventional hot calendar `Bellcore" technology. |
| 刊物名称： | JOURNAL OF POWER SOURCES |
| 影响因子： | 7.467 |
| 全文链接： | https://www.sciencedirect.com/science/article/pii/S0378775321004766?via%3Dihub |
