期刊
CHEMISTRY OF MATERIALS
卷 30, 期 8, 页码 2589-2599出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.7b05116
关键词
-
资金
- Office of Naval Research [N00014-16-1-2164]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0014213]
- U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences [DE-AC02-76SF00515]
Poly(3-hexylthiophene-2,5-diyl) (P3HT), a conducting polymer studied extensively for its optoelectronic devices, offers a number of advantageous properties when used as a conductive binder for lithium-ion battery cathode materials. By mixing with carbon nanotubes (CNT), P3HT-CNT serves as a surface coating for the cathode material LiNi0.8Co0.15Al0.05O2 (NCA). Oxidation of the P3HT enables high electronic and ionic conductivity to be achieved over the potential range where the NCA is electrochemically active. In addition to the conductivity benefits from electrochemical doping, the P3HT-CNT coating suppresses electrolyte breakdown, thus inhibiting growth of the solid electrolyte interphase layer and preventing intergranular cracking in the NCA particles. The use of the P3HT-CNT binder system leads to improved cycling for NCA at high power density with capacities of 80 mAh g(-1) obtained after 1000 cycles at 16 C, a value that is 4 times greater than that achieved in the control electrode.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据