维普中文期刊产品整合服务

Li-Ca Alloy Composite Anode with Ant-Nest-Like Lithiophilic Channels in Carbon Cloth Enabling High-Performance Li Metal Batteries

查看全文 作　　者：Zihao [1,2]Wang;Yuchi [1,2]Liu;Jianxiong [1,2]Xing;Zhicui [1,2]Song;Aijun [1,2]Zhou;Wei [3]Zou;Fu [3]Zhou;Jingze [1,2]Li 高影响力作者 机构地区：[1]School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 611731,China;[2]Yangtze Delta Region Institute(Huzhou),University of Electronic Science and Technology of China,Huzhou 313001,China;[3]Research and Development Center,Tianqi Lithium Co.,Ltd.,Chengdu 610093,China高影响力机构 出　　处：《Research》索引2022年第3期,共11页高影响力期刊 基　　金：the National Natural Science Foundation of China(Nos.21673033 and 52172184);the Suining Science and Technology Program(2019ZDCGZH003);the Fundamental Research Funds for the Central Universities(ZYGX2019J024). 摘　　要：Constructing a three-dimensional(3D)multifunctional hosting architecture and subsequent thermal infusion of molten Li to produce advanced Li composite is an effective strategy for stable Li metal anode.However,the pure liquid Li is difficult to spread across the surface of various substrates due to its large surface tension and poor wettability,hindering the production and application of Li composite anode.Herein,heteroatomic Ca is doped into molten Li to generate Li-Ca alloy,which greatly regulates the surface tension of the molten alloy and improves the wettability against carbon cloth(CC).Moreover,a secondary network composed of CaLi2 intermetallic compound with interconnected ant-nest-like lithiophilic channels is in situ formed and across the primary scaffold of CC matrix by infiltrating molten Li-Ca alloy into CC and then cooling treatment(LCAC),which has a larger and lithiophilic surface to enable uniform Li deposition into interior space of the hybrid scaffold without Li dendrites.Therefore,LCAC exhibits a long-term lifespan for 1100 h under a current density of 5 mA cm^(-2)with fixed areal capacity of 5 mAh cm^(-2).Remarkably,full cells paired with practical-level LiFePO4 cathode of 2.45 mAh cm^(-2)deliver superior performance. 关 键 词：alloy INTERMETALLIC composite
相关文献

参考文献(58)

耦合文献(68)

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