Low-Volatile Binder Enables Thermal Shock-Resistant Thin-Film Cathodes for Thermal Batteries

作     者：Yong Xie Yong Cao Xu Zhang Liangping Dong Xiaojiang Liu Yixiu Cui Chao Wang Yanhua Cui Xuyong Feng Hongfa Xiang Long Qie Yong Xie;Yong Cao;Xu Zhang;Liangping Dong;Xiaojiang Liu;Yixiu Cui;Chao Wang;Yanhua Cui;Xuyong Feng;Hongfa Xiang;Long Qie

作者机构：Laboratory of Electrochemical Power SourcesInstitute of Electronic EngineeringChina Academy of Engineering PhysicsMianyang 621000China School of Materials Science and EngineeringHefei University of TechnologyHefei 230009China State Key Laboratory of Material Processing and Die&Mold TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2024年第7卷第4期

页      面：126-134页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the support from the China Academy of Engineering Physics the National Natural Science Foundation of China(NSFC-No.52102319,12104422,U1930208) 

主　　题：gas production high-power low-volatile binder thermal battery thin-film cathode 

摘      要：Manufacturing thin-film components is crucial for achieving high-efficiency and high-power thermal batteries(TBs).However,developing binders with low-gas production at the operating temperature range of TBs(400-550°C)has proven to be a significant ***,we report the use of acrylic acid derivative terpolymer(LA136D)as a low-volatile binder for thin-film cathode fabrication and studied the chain scission and chemical bondbreaking mechanisms in *** is shown LA136D defers to randomchain scission and cross-linking chain scission mechanisms,which gifts it with a low proportion of volatile products(ψ,ψ=39.2 wt%)at even up to 550°C,well below those of the conventional PVDF(77.6 wt%)and SBR(99.2 wt%)***,LA136D contributes to constructing a thermal shock-resistant cathode due to the step-by-step bond-breaking *** is beneficial for the overall performance of *** discharging test,the thin-film cathodes exhibited a remarkable 440%reduction in polarization and 300%enhancement in the utilization efficiency of cathode materials,while with just a slight increase of 0.05 MPa in gas pressure compared with traditional“thick-film*** work highlights the potential of LA136D as a low-volatile binder for thin-film cathodes and shows the feasibility of manufacturing high-efficiency and high-power TBs through polymer molecule engineering.