一种纳米线组装的CoS/CuS@碳二元金属硫化物杂化物作为钠离子电池阳极，具有高容量和可恢复的倍率性能。

A nanowire-assembled CoS/CuS@carbon binary metal sulfide hybrid as a sodium-ion battery anode displaying high capacity and recoverable rate-performance.

作者信息

Liu Jinyun, Huang Xiaofei, Wang Rui, Han Tianli, Zhang Huigang

机构信息

Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, PR China.

University of Chinese Academy of Science, Beijing 100049, PR China.

出版信息

Chem Commun (Camb). 2023 Sep 28;59(78):11688-11691. doi: 10.1039/d3cc03841f.

DOI:10.1039/d3cc03841f

PMID:37698536

Abstract

A binary metal sulfide hybrid consisting of nanowire-assembled and polypyrrole-coated CoS/CuS spheres after nitrogen-doped carbon coating (CoS/CuS@NC) is developed as an anode, which displays a capacity exceeding 412.3 mA h g after 550 cycles under 1.0 A g. Recoverable rate-performance and good temperature tolerance under 50 °C and -10 °C are achievable; a full cell delivers 339.5 mA h g, indicating promising potential for applications in various conditions.

摘要

一种由纳米线组装且经聚吡咯包覆的CoS/CuS球体在进行氮掺杂碳包覆后形成的二元金属硫化物杂化物（CoS/CuS@NC）被开发用作阳极，该阳极在1.0 A g的电流密度下经过550次循环后显示出超过412.3 mA h g的容量。在50℃和-10℃下可实现可恢复的倍率性能和良好的温度耐受性；一个全电池的容量为339.5 mA h g，表明其在各种条件下的应用具有广阔前景。