Electrochemical properties of the Li-ion polymer batteries with P(VdF-co-HFP)-based gel polymer electrolyte |
| |
| Affiliation: | 1. National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China;2. Department of Materials Science and Engineering, University of California, Davis 95616, CA, United States;1. Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China;2. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China;3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China;4. TAIQI Academy of New Energy Engineering, Shouguang 262700, P. R. China |
| |
| Abstract: | Gel polymer electrolytes consisting of 25 wt.% P(VdF-co-HFP), 65 wt.% ethylene carbonate + propylene carbonate and 10 wt.% LiN(CF3SO2)2 are prepared using by a solvent-casting technique. The electrodes are for use in lithium-ion polymer batteries. The electrochemical characteristics of the gel polymer electrolytes are evaluated by means of ac impedance and cyclic voltammetry. The charge–discharge performance of lithium polymer and lithium-ion polymer batteries is examined. A LiCoO2 | gel polymer electrolyte (GPE) | mesocarbon microbeads (MCMB) cell delivers a discharge capacity of 146.8 and 144.5 mAh g−1 on the first and the 20th cycle, respectively. The specific discharge capacity is greater than 140 mAh g−1 for up to 20 cycle at all the current densities examined. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
