Solid polymer electrolyte-based high areal capacity all-solid-state batteries enabled with ceramic interlayers  

作　　者：Chenji Hu Daiqian Chen Yage Huang Guoyong Xue Xi Liu Jingshu Wang Jun Ma Bowen Chen Qi Chen Linsen Li Yanbin Shen Liwei Chen 

机构地区：[1]School of Chemistry and Chemical Engineering,in-situ Center for Physical Sciences,Shanghai Electrochemical Energy Device Research Center(SEED)and Frontiers Science Center for Transformative Molecules,Shanghai Jiao Tong University,Shanghai 200240,China [2]i-Lab,CAS Center for Excellence in Nanoscience,Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO),Chinese Academy of Sciences,Suzhou 215123,China [3]IDONANO Co Ltd,Shanghai 201614,China [4]Future Battery Research Center,Global Institute of Future Technology,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Nano Research》2024年第10期8803-8808,共6页纳米研究（英文版）

基　　金：the National Key R&D Program of China(No.2021YFB3800300);Science and Technology Commission of Shanghai Municipality(No.23DZ1200800);China Postdoctoral Science Foundation(Nos.BX20220199 and 2023M732208).

摘　　要：Solid polymer electrolytes(SPEs)based all-solid-state batteries(ASSBs)have attracted extensive attention as a promising candidate for next-generation energy storage systems.Typical ASSBs require high fabrication pressure to achieve high areal capacity,under which,however,SPEs struggle and risk damage or failure due to their low mechanical strength.There is also a lack of study on complex stress and strain SPEs experience during ASSB cell assembly processes.Here,ceramic solid electrolytes are selected as interlayers to address the stress-strain conditions during assembling.As a result,high areal capacity ASSBs with a LiCoO2 loading of 12 mg·cm^(-2) were assembled with SPE-based composite electrolytes.Around 200 cycles were carried out for these cells at a current density of 1 mA·cm^(-2) under room temperature.The capacity decay of the battery at 200 cycles is observed to be as low as 0.06% per cycle.This work identifies a critical issue for application of SPEs in ASSBs and provides a potential strategy for the design of SPE-based ASSBs with high specific energy and long cycle life.

关 键 词：all-solid-state batteries ceramic interlayer solid polymer electrolyte high areal capacity 

分 类 号：TM912[电气工程—电力电子与电力传动]