High ceramic content composite solid-state electrolyte films prepared via a scalable solvent-free process

作     者：Daiqian Chen Chenji Hu Qi Chen Guoyong Xue Lingfei Tang Qingyu Dong Bowen Chen Fengrui Zhang Mingwen Gao Jingjing Xu Yanbin Shen Liwei Chen Daiqian Chen;Chenji Hu;Qi Chen;Guoyong Xue;Lingfei Tang;Qingyu Dong;Bowen Chen;Fengrui Zhang;Mingwen Gao;Jingjing Xu;Yanbin Shen;Liwei Chen

作者机构：School of Physical Science and TechnologyShanghaiTech UniversityShanghai 201210China i-LabCAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative Moleculesand in situ Center for Physical SciencesShanghai Jiao Tong UniversityShanghai 200240China Baosheng(Suzhou)Energy Technology Co.LtdSuzhou 215123China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第3期

页      面：3847-3854页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.21733012 and 22179143) the National Key R&D Program of China(No.2021YFB3800300) 

主　　题：free-standing solid-state electrolyte film composite solid-state electrolyte solid-state battery 

摘      要：The development of high-performance solid-state electrolyte(SSE)films is critical to the practical application of all-solid-state Li metal batteries(ASSLMBs).However,developing high-performance free-standing electrolyte films remains a challenging *** this work,we demonstrate a novel scalable solvent-free process for fabricating high ceramic content composite solid-state electrolyte(HCCSE)*** speaking,a mixture of ceramic and polymer is dry mixed,fibered,and calendered into a free-standing porous ceramic film,on which polymer precursor is coated and polymerized to bridge the inorganic ceramic particles,resulting in a flexible HCCSE film with a ceramic content of up to 80 wt.%.High ceramic content not only leads to high ionic conductivity but also brings good mechanical properties;while the organic phase enables electrode|electrolyte interfacial *** Li_(10)GeP_(2)S_(12)(LGPS)and polymeric ionic liquid-based solid polymer electrolytes(PIL-SPEs)were used as the inorganic and organic phases,respectively,the room temperature ionic conductivity of the resulted HCCSE reaches 0.91 mS·cm−*** on this HCCSE,Li||Li symmetric battery cycled stably for more than 2,400 h with ultra-low overpotential,and ASSLMBs with different cathodes(LiFePO4 and sulfurized polyacrylonitrile(PAN-S))present small polarization and decent cyclability at room *** work provides a novel scalable solvent-free strategy for preparing high-performance freestanding composite solid-state electrolyte(CSE)film for room temperature ASSLMBs.