Potential threshold of anode materials for foldable lithium-ion batteries featuring carbon nanotube current collectors

被引:24
作者
Wang, Qing Hui [1 ]
Zhong, Sheng Wen [1 ]
Hu, Jing Wei [1 ]
Liu, Ting [1 ]
Zhu, Xian Yan [2 ]
Chen, Jing [2 ]
Hong, Yin Yan [1 ]
Wu, Zi Ping [1 ]
机构
[1] Jiangxi Univ Sci & Technol, Sch Mat Sci & Engn, 86 Hong Qi Rd, Ganzhou 341000, Peoples R China
[2] Guilin Univ Technol, Sch Mat Sci & Engn, 12 Jiangan Rd, Guilin 541004, Peoples R China
基金
中国国家自然科学基金;
关键词
Foldable; Flexible; Lithium ion batteries; Carbon nanotube; Current collectors; ENERGY-STORAGE; NATURAL GRAPHITE; GRAPHENE; PAPER; PERFORMANCE; ELECTRONICS; LIGHTWEIGHT; TEXTILES; DEVICES; CATHODE;
D O I
10.1016/j.jpowsour.2016.02.004
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Flexible carbon nanotube macro-films (CMFs) are perfect current collectors for preparing foldable lithium-ion batteries (LIBs). However, selecting appropriate anodes for electrode is difficult because of the different potentials (vs. Li/Li+) of carbon nanotubes and traditional metallic current collector. This study demonstrated an additional reaction at potential below 0.9 V (vs. Li/Li+) caused by CMF, And Li+ will be constrained, which decreased capacity of anode/CMF electrode. Conversely, results changed when the anode potential exceeded 0.9 V (vs. Li/Li+) because Li+ passed the potential threshold, and the CMF retained its electrochemical inactivity. Consequently, the CMF-based foldable LIBs performed well. The potential threshold mechanism of anode is expected to provide new impetus to both academia and industry for exploring flexible or foldable LIBs. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:70 / 78
页数:9
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