首页|Interfacial fusion-enhanced 11 μm-thick gel polymer electrolyte for high-performance lithium metal batteries
Interfacial fusion-enhanced 11 μm-thick gel polymer electrolyte for high-performance lithium metal batteries
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
In the pursuit of ultrathin polymer electrolyte(＜20 μm)for lithium metal batteries,achieving a balance between mechanical strength and interfacial stability is crucial for the longevity of the electrolytes.Herein,11 μm-thick gel polymer electrolyte is designed via an integrated electrode/electrolyte structure supported by lithium metal anode.Benefiting from an exemplary superiority of excellent mechanical property,high ionic conductivity,and robust interfacial adhesion,the in-situ formed polymer electrolyte reinforced by titanosiloxane networks(ISPTS)embodies multifunctional roles of physical barrier,ionic carrier,and artificial protective layer at the interface.The potent interfacial interactions foster a seamless fusion of the electrode/electrolyte interfaces and enable continuous ion transport.Moreover,the built-in ISPTS electrolyte participates in the formation of gradient solid-electrolyte interphase(SEI)layer,which enhances the SEI's structural integrity against the strain induced by volume fluctuations of lithium anode.Consequently,the resultant 11 μm-thick ISPTS electrolyte enables lithium symmetric cells with cycling stability over 600 h and LiFePO4 cells with remarkable capacity retention of 96.6％after 800 cycles.This study provides a new avenue for designing ultrathin polymer electrolytes towards stable,safe,and high-energy-density lithium metal batteries.
Ultrathin gel polymer electrolyteIntegrated electrode/electrolyte structureQuasi-solid-state lithium metal batterySolid-electrolyte interphase
Ying Jiang、Xinyue Hong、Peng Huang、Jing Shi、Wen Yan、Chao Lai
展开 >
School of Chemistry and Materials Science,Jiangsu Normal University,Xuzhou 221116,Jiangsu,China
NETL
NSTL
万方数据
