期刊
APPLIED SURFACE SCIENCE
卷 505, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.144649
关键词
TiO2 nanowires; Surface modification; Interfacial capacity; Fast lithium ion storage
类别
资金
- National Natural Science Foundation of China [11604037, 11674044, 11704054]
- Natural Science Foundation of Chongqing [CSTC2017jcyjA5005, CSTC2017jcyjAX0046, KJ1500409, KJ1600406, KJZD-K201800602]
- Startup Foundation of Chongqing University of Posts and Telecommunications [A2018-123]
- Scientific and Technological Research Projects of Chongqing Education Commission [KJQN201900616]
Developing Li-ion storage with high rate capability and long cycling life is indispensable for applications where fast charge/discharge is required. To achieve this goal, interfacial pesudocapacitance is introduced by doping TiO2 nanowire with N and S, which have been obtained after annealing process in the presence of thiourea. As a result, a high reversible capacity and ultra-long cycling stability is achieved. Moreover, a hybrid lithium-ion capacitor (LIC) is assembled and it is able to deliver an energy density of 45.2 Wh kg(-1) at a power density of 175 W kg(-1).
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