维普中文期刊产品整合服务

An effective artificial layer boosting high-performance all-solid-state lithium batteries with high coulombic efficiency

查看全文 作　　者：Jianli [1]Wang;Zhao [1]Zhang;Hangjun [1]Ying;Shunlong [1]Zhang;Hui [1]Tan;Gaorong [1]Han;Wei-Qiang [1]Han 高影响力作者 机构地区：[1]School of Materials Science and Engineering,Zhejiang University,38 Zheda Road,Hangzhou,310027,China高影响力机构 出　　处：《Journal of Materiomics》索引2022年第8卷第2期,共9页高影响力期刊 基　　金：The authors acknowledge the support by Taihu Electric Corpo-ration 0001,the National Natural Science Foundation of China(51901206);the Fundamental Research Funds for the Central Uni-versities(2021QNA4003). 摘　　要：All-solid-state lithium batteries(ASSLBs)employ high-capacity lithium(Li)metal as the anode and exhibit a higher energy density than that of conventional Li-ion batteries.However,the problems arose from the Li dendrites induce severely parasitic reaction between Li and electrolytes,leading to low coulombic efficiency(CE)and poor cyclic stability.Herein,a poly(vinylidene-co-hexafluoropropylene)/lithium nitrate(PVDF-HFP/LiNO_(3),marked as PFH/LN)artificial layer is employed to modified Li and achieve high CE ASSLBs with polyethylene oxide-Li_(6.4) La_(3)Zr_(1.4)Ta_(0.6)O_(12)(PEO-LLZTO)electrolyte.LN serves as a functionalized additive to facilitate the formation of a robust solid electrolyte interface(SEI),effi-ciently suppressing the formation of Li dendrites.Additionally,LN as a“binder”effectively links PFH with Li,providing good contact.PFH possesses high mechanical strength and moderate flexibility,which can not only physically inhibit the growth of Li dendrites,but also maintain the structural integrity of arti-ficial layer over long-term cycles.Finally,Li/Li cells with such artificial layer demonstrate ultralong cycle life of 1800 and 1000 h under 0.2 and 0.4 mA cm^(-1),respectively.Furtherly,high CE can be achieved when applied in both LiFePO 4 full cells and Li-Cu half cells.This work offers a facile and efficient strategy to greatly promote CE in PEO-based ASSLBs. 关 键 词：All-solid-state lithium batteries High coulombic efficiency PVDF-HFP/LiNO 3 artificial layer PEO-LLZTO electrolyte A robust SEI
相关文献

参考文献(56)

引证文献(1)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费