An Aqueous Rechargeable Zn//Co3O4 Battery with High Energy Density and Good Cycling Behavior

An aqueous rechargeable Zn//Co3O4 battery is demonstrated with Zn@carbon fibers and Co3O4@Ni foam as the negative and positive electrodes, respectively, using an electrolyte of 1 m KOH and 10 × 10−3m Zn(Ac)2. It can operate at a cell voltage as high as 1.78 V with an energy density of 241 W h kg−1 a...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-06, Vol.28 (24), p.4904-4911
Main Authors: Wang, Xiaowei, Wang, Faxing, Wang, Liying, Li, Minxia, Wang, Yanfang, Chen, Bingwei, Zhu, Yusong, Fu, Lijun, Zha, Liusheng, Zhang, Lixin, Wu, Yuping, Huang, Wei
Format: Article
Language:English
Subjects:
flexible
free dendrite
long cycling
rechargeable battery
zinc
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Summary:An aqueous rechargeable Zn//Co3O4 battery is demonstrated with Zn@carbon fibers and Co3O4@Ni foam as the negative and positive electrodes, respectively, using an electrolyte of 1 m KOH and 10 × 10−3m Zn(Ac)2. It can operate at a cell voltage as high as 1.78 V with an energy density of 241 W h kg−1 and presents excellent cycling. The battery is also assembled into a flexible shape, which can be applied in flexible or wearable devices requiring high energy.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201505370