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Halide/sulfide composite solid-state electrolyte for Li-anode based all-solid-state batteries 被引量:2
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作者 Haochang Zhang Zhaozhe Yu +3 位作者 jinyin cheng Hannan Chen Xiao Huang Bingbing Tian 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第11期326-331,共6页
Li_(2)ZrCl_(6)(LZC) solid-state electrolytes(SSEs) have been recognized as a candidate halide SSEs for allsolid-state Li batteries(ASSLBs) with high energy density and safety due to its great compatibility with4V-clas... Li_(2)ZrCl_(6)(LZC) solid-state electrolytes(SSEs) have been recognized as a candidate halide SSEs for allsolid-state Li batteries(ASSLBs) with high energy density and safety due to its great compatibility with4V-class cathodes and low bill-of-material(BOM) cost.However,despite the benefits,the poor chemical/electrochemical stability of LZC against Li metal causes the deterioration of Li/LZC interface,which has a detrimental inhibition on Li^(+) transport in ASSLBs.Herein,we report a composite SSE combining by LZC and argyrodite buffer layer(Li_(6)PS_(5)Cl,LPSC) that prevent the unfavorable interaction between LZC and Li metal.The Li/LPSC-LZC-LPSC/Li symmetric cell stably cycles for over 1000 h at 0.3 mA/cm^(2)(0.15mAh/cm^(2)) and has a high critical current density(CCD) value of 2.1 mA/cm^(2)at 25 ℃,Under high temperature(60℃) which promotes the reaction between Li and LZC,symmetric cell fabricated with composite SSE also display stable cycling performance over 1200h at 0.3 mAh/cm^(2).Especially,the Li/NCM ASSLBs fabricated with composite SSE exhibit a high initial coulombic efficiency,as well as superior cycling and rate performance.This simple and efficient strategy will be instrumental in the development of halidebased high-performance ASSLBs. 展开更多
关键词 Li_(2)ZrCl_(6) Li_(6)PS_(5)Cl Composite solid-state electrolyte Interface stability Li anode
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