期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 167, 期 12, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/abac86
关键词
Self-supported electrodes; Amorphous buffer layer; SnO2 nanorod arrays; Lithium-ion batteries; Flexible batteries
资金
- National Natural Science Foundation of China [11504192, 11604172, 11674187, 11704211, 21975287, 11904409]
- National Science Foundation of Shandong Province [BSB2014010, ZR2018BEM012]
- Shandong Provincial Natural Science Foundation [ZR2018ZC1458]
- Science and Technology Board of Qingdao [16-5-1-2-jch, 18-2-2-7-jch, 18-2-2-22-jch]
Self-supported electrodes have become increasingly important for the development of flexible electronic devices. Herein, SnO(2)nanorod arrays are firmly glued onto amorphous SnO(2)coated Cu foils, to form robust self-supported anodes for lithium-ion batteries (LIBs). Without the use of binders and conducting additives, the as-prepared anodes exhibit outstanding performance in terms of excellent cycling stability and high rate capability and are successfully assembled into flexible cells. The excellent performance of the as-prepared anodes can be attributed to the interfacial engineering: the amorphous SnO(2)interlayer not only glues SnO(2)nanorods and the conductive substrate together, but also buffers the stress induced by volume expansion of the SnO(2)nanorods and facilitates efficient electron transport during the cycling. The outstanding electrochemical performance suggests that the proposed interfacial engineering with the amorphous SnO(2)is a simple and promising strategy for constructing high-performance LIBs especially for the emerging flexible batteries.
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