Open AccessUltrafast‐Charging Supercapacitors Based on Corn‐Like Titanium Nitride Nanostructures
Author(s) -
Yang Peihua,
Chao Dongliang,
Zhu Changrong,
Xia Xinhui,
Zhang Yongqi,
Wang Xingli,
Sun Peng,
Tay Beng Kang,
Shen Ze Xiang,
Mai Wenjie,
Fan Hong Jin
Publication year - 2016
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500299
Subject(s) - supercapacitor , materials science , capacitance , energy storage , graphene , nanotechnology , capacitor , self discharge , ultrashort pulse , optoelectronics , titanium nitride , electrode , nitride , electrical engineering , voltage , laser , power (physics) , optics , chemistry , electrolyte , physics , layer (electronics) , quantum mechanics , engineering
Ultrahigh rates realized by ALD‐made TiN . The symmetric full‐cell supercapacitors deliver a typical capacitance of 20.7 F cm −3 at a scan rate of 1 V s −1 , and retain 4.3 F cm −3 at high rate of 100 V s −1 . The devices can be charged and discharged for 20 000 cycles with negligible capacitance loss and with an ultralow self‐discharge current (≈1 μA).