文献类型：期刊文献

英文题名：Macroporous MoS2/carbon hybrid film with superior ion/electron conductivity for superhigh areal capacity Li-ion batteries

作者：Zhang, Haoxuan[1];Liu, Yu[1];Jiang, Hao[1,2];Deng, Zongnan[2];Liu, Honglai[1];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China

年份：2019

卷号：207

起止页码：611

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20192807157573);WOS:【SCI-EXPANDED(收录号:WOS:000481644300050)】；

基金：This work was supported by the National Natural Science Foundation of China (51672082, 91534202 and 91834301), the Basic Research Program of Shanghai (17JC1402300), the Shanghai Scientific and Technological Innovation Project (18JC1410500 and 18DZ2252400), the National Program for Support of Top-Notch Young Professionals, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：Macroporous hybrid film; Ion transfer; Areal specific capacity; Flexible electrode; Lithium-ion battery

摘要：The development of flexible lithium-ion batteries (LIBs) with very high areal capacity becomes extremely important in achieving precision medicine due to the limited area of the involved LIB devices. However, the improvement of areal capacity using well-known conventional strategies unavoidably engenders serious polarization and gravimetric specific capacity fading. Herein, we report an entirely new insight into constructing superhigh areal-specific-capacity LIBs by designing an electron/ion dual-conductive macroporous MoS2/C hybrid film. A four-film stacked electrode even with a high mass loading of similar to 12.0 mg cm(2) can deliver an unprecedented high areal specific capacity of 7.21 mA h cm (2), almost double that of best material reported to date (4 mA h cm(2)). Such film electrode unexpectedly shows a positive linear increase of areal specific capacity versus layer number, but no gravimetric capacity (high value of similar to 600 mA h g(1)) change. The electrode kinetics studies reveal that such superhigh arealspecific-capacity lithium storage is mainly attributed to excellent ion transport (10(8) -10(9) cm(2) s(1)) and electron transfer (21.3 S cm(1)) of three-dimensional macroporous MoS2/C hybrid film. This work demonstrates a new concept of dual-conductive film electrode for the development and application of LIBs with tailorable areal specific capacity. (C) 2019 Elsevier Ltd. All rights reserved.