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?晏成林教授课题组在Nano letters上发表研究论文

发布者:金霞发布时间:2019-05-31浏览次数:10

题 目:High Safety All-Solid-State Lithium Metal Battery with High Ionic Conductivity Thermoresponsive Solid Polymer Electrolyte

作者:Jinqiu Zhou, Tao Qian, Jie Liu, Mengfan Wang, Li Zhang, Chenglin Yan

单 位:Soochow Institute for Energy and Materials Innovations, College of Energy, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China

摘 要:Lithium metal batteries (LMB) are very attractive owing to their high theoretical energy density, but significant challenges such as low ionic conductivity and safety risks prevent their widespread application. Herein we report a new design of high safety all-solid-state LMB by using high ionic conductive thermoresponsive solid polymer electrolyte (TSPE), providing a smart and active approach to realize thermally-induced autonomic shutdown of LMBs by efficiently inhibiting the ionic conduction between electrodes beyond an unsafe temperature. The as-obtained TSPE exhibits a high ionic conductivity (2 × 10-4 S cm-1 at 30 °C), which enables a significantly improved capacity of 160 mA h g-1 at 0.2 C, outstanding high rate capability up to 5 C as well as super-long cycle life over 400 cycles for the constructed all-solid-state Li||LiFePO4 batteries. The present study opens up the new avenue for the fabrication of self …

影响因子:13.07

原文链接:https://pubs.acs.org/doi/abs/10.1021/acs.nanolett.9b00450