An Aqueous Rechargeable Zn//Co3 O4 Battery with High Energy Density and Good Cycling Behavior.
An aqueous rechargeable Zn//Co3 O4 battery is demonstrated with Zn@carbon fibers and Co3 O4 @Ni foam as the negative and positive electrodes, respectively, using an electrolyte of 1 m KOH and 10 × 10(-3) m 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.
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.|Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Xiaowei
X
Wang
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.
Faxing
F
Wang
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.|State Key Laboratory for Modification of Chemical Fibres and Polymer Materials, Donghua University, Shanghai, 201620, China.
Liying
L
Wang
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Minxia
M
Li
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Yanfang
Y
Wang
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Bingwei
B
Chen
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.
Yusong
Y
Zhu
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.
Lijun
L
Fu
State Key Laboratory for Modification of Chemical Fibres and Polymer Materials, Donghua University, Shanghai, 201620, China.
Liusheng
L
Zha
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Lixin
L
Zhang
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.|Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Yuping
Y
Wu
College of Energy and Institute for Advance Materials, Nanjing Tech University, Nanjing, 211816, Jiangsu Province, China.
Wei
W
Huang
flexible; free dendrite; long cycling; rechargeable battery; zinc