文献类型：期刊文献

英文题名：Bacteria Absorption-Based Mn2P2O7-Carbon@Reduced Graphene Oxides for High-Performance Lithium-Ion Battery Anodes

作者：Yang, Yuhua[1];Wang, Bin[1,2];Zhu, Jingyi[3,4];Zhou, Jun[1];Xu, Zhi[1];Fan, Ling[1];Zhu, Jian[1];Podila, Ramakrishna[3,4];Rao, Apparao M.[3,4];Lu, Bingan[1,5]

第一作者：Yang, Yuhua

通讯作者：Lu, BG[1];Lu, BG[2]

机构：[1]Hunan Univ, Sch Phys & Elect, Changsha 410082, Peoples R China;[2]Xinxiang Univ, Phys & Elect Engn Dept, Xinxiang 453003, Peoples R China;[3]Clemson Univ, Dept Phys & Astron, Clemson Nanomat Ctr, Clemson, SC 29634 USA;[4]Clemson Univ, COMSET, Clemson, SC 29634 USA;[5]2D Mat Technol Co Ltd, Wing Lok St, Sheung Wan 999077, Hong Kong, Peoples R China

第一机构：Hunan Univ, Sch Phys & Elect, Changsha 410082, Peoples R China

通讯机构：[1]corresponding author), Hunan Univ, Sch Phys & Elect, Changsha 410082, Peoples R China;[2]corresponding author), 2D Mat Technol Co Ltd, Wing Lok St, Sheung Wan 999077, Hong Kong, Peoples R China.

年份：2016

卷号：10

期号：5

起止页码：5516-5524

外文期刊名：ACS NANO

收录：;EI(收录号：20162402486497);Scopus(收录号：2-s2.0-84973300855);WOS:【SCI-EXPANDED(收录号:WOS:000376825100070)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Nos. 21303046 and 21473052), the Natural Science Foundation of Hunan Provinces (No. 201324), the Research Fund for the Doctoral Program of Higher Education (No. 20130161120014), and Hunan University Young Scientists Fund (531107040668). J.Z. and A.M.R acknowledge financial support through the National Science Foundation SNM Grant No. 1246800.

语种：英文

外文关键词：bacteria; yolk-shell Mn2P2O7-carbon; reduced graphene oxides; binder-free flexible anode; lithium-ion batteries

摘要：The development of freestanding flexible electrodes with high capacity and long cycle-life is a central issue for lithium-ion batteries (LIBs). Here, we use bacteria absorption of metallic Mn2+ ions to in situ synthesize natural micro-yolk shell-structure Mn2P2O7 carbon, followed by the use of vacuum filtration to obtain Mn2P2O7 carbon@reduced graphene oxides (RGO) papers for LIBs anodes. The Mn2P2O7 particles are completely encapsulated within the carbon film, which was obtained by carbonizing the bacterial wall. The resulting carbon microstructure reduces the electrode electrolyte contact area, yielding high Coulombic efficiency. In addition, the yolk shell structure with its internal void spaces is ideal for sustaining volume expansion of Mn2P2O7 during charge/discharge processes, and the carbon shells act as an ideal barrier, limiting most solid electrolyte interphase formation on the surface of the carbon films (instead of forming on individual particles). Notably, the RGO films have high conductivity and robust mechanical flexibility. As a result of our combined strategies delineated in this article, our binder-free flexible anodes exhibit high capacities, long cycle-life, and excellent rate performance.