|
|||||
|
|
Improved thermal stability of graphite electrodes in lithium-ion batteries using 4-isopropyl phenyl diphenyl phosphate as an additive |
|
| Authors: | Qingsong Wang Jinhua Sun Chunhua Chen |
| Affiliation: | (1) State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, Anhui, People’s Republic of China;(2) Department of Materials Science & Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, People’s Republic of China |
| Abstract: | To enhance the thermal stability of graphite electrodes for lithium-ion batteries, 4-isopropyl phenyl diphenyl phosphate (IPPP) was investigated as an additive in the electrolyte of 1.0 M LiPF6 in ethylene carbonate and diethyl carbonate (1:1 in weight). The electrochemical performance of Li/IPPP-electrolyte/C half cells was evaluated. The thermal behavior of Li x C6 and Li x C6-IPPP-electrolytes were examined using a C80 micro-calorimeter. Electrolytes with 5 and 10% IPPP improve the thermal stability of the graphite electrode in the tests. The electrochemical performance of Li/IPPP-electrolyte/C cells is not degraded by the addition of this amount of IPPP to the electrolyte. |
| Keywords: | Lithium-ion battery Graphite Thermal behavior C80 micro-calorimeter 4-Isopropyl phenyl diphenyl phosphate |
| 本文献已被 SpringerLink 等数据库收录！ | |