Inhibiting the shuttle effect of Li-S battery with a graphene oxide coating separator: Performance improvement and mechanism study

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• 作者：Yong Jiang^a ; Fang Chen^a ; Yang Gao^b ; Yanyan Wang^a ; Shanshan Wang^b ; Qiang Gao^a ; Zheng Jiao^b ; Bing Zhao^a ; ^{bzhao@shu.edu.cn} ; Zhiwen Chen^b ; ^{zwchen@shu.edu.cn}
• 关键词：Graphene oxide coating separator ; Lithium&ndash ; sulfur battery ; Shuttle effect ; Oxygen-containing functional group ; Polysulfide ; Mechanism study
• 刊名：Journal of Power Sources
• 出版年：2017
• 出版时间：28 February 2017
• 年：2017
• 卷：342
• 期：Complete
• 页码：929-938
• 全文大小：3062 K
• 卷排序：342

文摘

GO-separator is used as a shuttle inhibitor of the Li–S battery. Excellent polysulfide-diffusion inhibiting effect and cycle life are observed. Much less sulfur and polysulfide species are tested in separator and electrolyte. GO film still maintains 3D flexible porous structure with a few insoluble particles. Less sulfate species, lithium salts and polysulfides are detected on the cathode.