典型文献
Thermotolerant and fireproof gel polymer electrolyte toward high-performance and safe lithium-ion battery
文献摘要：
Poly(ethylene oxide) (PEO) and its derivatives based gel polymer electrolytes (GPEs) are severely limited in advanced and safe lithium-ion batteries (LIBs) owing to the intrinsically high flammability of liquid electrolytes and PEO.Directly adding flame retardants to the GPEs can suppress their flammability and thus improve the safety of LIBs,but results in deteriorative electrochemical performance.Herein,a novel GPE with chemically bonded flame retardant (i.e.diethyl vinylphosphonate) in cross-linked polyethylene glycol diacrylate matrix,featuring both high-safety and high-performance,is designed.This as-prepared GPE storing the commercial 1 mol L-1 LiPF6 electrolyte resists high temperature of 200 ℃ and cannot be ignited as well as possesses a high ionic conductivity (0.60 mS cm-1) and good compatibility with lithium.Notably,the LiFePO4/Li battery with this GPE delivers a satisfactory capacity of 142.2 mA h g-1 and a superior cycling performance with a capacity retention of 96.3％ and a coulombic efficiency of close to 100％ for 350 cycles at 0.2 C under ambient temperature.Furthermore,the battery can achieve steady charge-discharge for 100 cycles with a coulombic efficiency of 99.5％ at 1 C under 80 ℃ and run normally even at a high temperature of 150 ℃ or under the exposure to butane flame.Differential scanning calorimetry manifests significantly improved battery safety compared to commer-cial battery systems.This work provides a new pathway for developing next-generation advanced LIBs with enhanced performance and high safety.
文献关键词：
中图分类号：
作者姓名：
Man-Cheng Long;Ting Wang;Ping-Hui Duan;You Gad;Xiu-Li Wang;Gang Wu;Yu-Zhong Wang
作者机构：
The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE),Notional Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan),State Key Laboratory of Polymer Materials Engineering,College of Chemistry,Sichuan University,Chengdu 610064,China
文献出处：
引用格式：
[1]Man-Cheng Long;Ting Wang;Ping-Hui Duan;You Gad;Xiu-Li Wang;Gang Wu;Yu-Zhong Wang-.Thermotolerant and fireproof gel polymer electrolyte toward high-performance and safe lithium-ion battery)[J].能源化学,2022(02):9-18
A类：
Thermotolerant,deteriorative,vinylphosphonate,diacrylate
B类：
fireproof,gel,polymer,toward,high,performance,lithium,battery,Poly,oxide,PEO,its,derivatives,electrolytes,GPEs,severely,limited,advanced,batteries,LIBs,owing,intrinsically,flammability,liquid,Directly,adding,flame,retardants,suppress,their,thus,safety,results,electrochemical,Herein,novel,chemically,bonded,diethyl,cross,linked,polyethylene,glycol,matrix,featuring,both,designed,This,prepared,storing,commercial,LiPF6,resists,temperature,cannot,be,ignited,well,possesses,ionic,conductivity,mS,good,compatibility,Notably,LiFePO4,this,delivers,satisfactory,capacity,mA,superior,cycling,retention,coulombic,efficiency,close,cycles,under,ambient,Furthermore,achieve,steady,discharge,run,normally,even,exposure,butane,Differential,scanning,calorimetry,manifests,significantly,improved,compared,systems,work,provides,new,pathway,developing,next,generation,enhanced
AB值：
0.538734
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
