个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:哈尔滨工业大学
学位:博士
所在单位:化工海洋与生命学院
学科:化学工程. 能源化工. 功能材料化学与化工
办公地点:D01-312A
联系方式:0427-2631809
电子邮箱:liuanmin@dlut.edu.cn
A multi-functional binder for high loading sulfur cathode
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论文类型:期刊论文
发表时间:2020-07-01
发表刊物:JOURNAL OF ENERGY CHEMISTRY
收录刊物:EI、SCIE
卷号:46
页面范围:99-104
ISSN号:2095-4956
关键字:Li-S batteries; Sulfur cathode; Mussel-inspired binder; Bio-adhesion; High loading; High performance
摘要:Lithium sulfur (Li-S) batteries are the promising power sources, but their commercialization is significantly impeded by poor energy-storage functions at high sulfur loading. Here we report that such an issue can be effectively addressed by using a mussel-inspired binder comprised of chitosan grafted with cate-cholic moiety for sulfur cathodes. The resulting sulfur cathodes possess a high loading up to 12.2 mg cm(-2) but also exhibit one of the best electrochemical properties among their counterparts. The excellent performances are attributed to the strong adhesion of the binder to sulfur particles, conducting agent, current collector, and polysulfide. The versatile adhesion effectively increases the sulfur loading, depresses the shuttle effect, and alleviates mechanical pulverization during cycling processes. The present investigation offers a new insight into high performance sulfur cathodes through a bio-adhesion viewpoint. (C) 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.