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Aqueous Rechargeable Battery Based on Zinc and a Composite of LiNi 1/3 Co 1/3 Mn 1/3 O 2
Author(s) -
Wang Faxing,
Liu Yu,
Wang Xiaowei,
Chang Zheng,
Wu Yuping,
Holze Rudolf
Publication year - 2015
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201500033
Subject(s) - composite number , battery (electricity) , materials science , aqueous solution , electrode , graphene , hydrothermal circulation , zinc , chemical engineering , carbon nanotube , carbon fibers , nanotechnology , composite material , metallurgy , chemistry , power (physics) , physics , quantum mechanics , engineering
A composite of rod‐shaped LiNi 1/3 Co 1/3 Mn 1/3 O 2 with graphene nanosheets and multiwall carbon nanotubes (MWCNTs) is assembled by using a hydrothermal method. In the composite, LiNi 1/3 Co 1/3 Mn 1/3 O 2 and MWCNTs are wrapped into graphene nanosheets. It exhibits better rate capability in comparison with plain LiNi 1/3 Co 1/3 Mn 1/3 O 2 as a positive electrode for an aqueous rechargeable battery, using zinc as the negative electrode. The average charge and discharge voltages of this aqueous rechargeable battery are 1.80 and 1.65 V, respectively. Based on the total weight of the electrode materials of the composite and Zn, its energy density can reach 154 Wh kg −1 , which is comparable with that of Ni‐MH batteries. Its cycling behavior is satisfactory.