TY - JOUR
T1 - Metal/graphene oxide batteries
AU - Ye, Minghui
AU - Gao, Jian
AU - Xiao, Yukun
AU - Xu, Tong
AU - Zhao, Yang
AU - Qu, Liangti
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/12
Y1 - 2017/12
N2 - Based on the spontaneous redox reaction between metal and graphene oxide, a novel type of metal/graphene oxide (M/GO) batteries is developed to convert chemical energy into electricity, including Li/GO, Na/GO, Zn/GO, Fe/GO, and Cu/GO batteries. They are fabricated via the simple assembly of metal foils with GO films, in which M plays the role of anode, and GO acts as both cathode and separator. Among them, Li/GO battery generates the highest specific capacity of 1572 mAh cm−3 (about 1604 mAh g−1). The energy density of M/GO battery is determined by the contact area of M with GO. Therefore, three-dimensional (3D) M/GO battery will deliver higher energy in comparison to 2D planar M/GO battery. As expected, a semi-solid 3D-Cu/GO redox flow battery (RFB) is assembled by 3D Cu foam with flowing GO/ionic-liquid catholyte. Its specific capacity is ca. 97 times that of Cu foil/GO RFB. Besides, a compressible, all-solid-state, and pressure-responsive 3D-GO/Zn battery is also fabricated. It can accurately control the energy output in response to pressure stimulations without the aid of conventional battery management system. Beyond those demonstrated in this work, the concept of M/GO battery will shed light on the design of similar electrochemical power sources.
AB - Based on the spontaneous redox reaction between metal and graphene oxide, a novel type of metal/graphene oxide (M/GO) batteries is developed to convert chemical energy into electricity, including Li/GO, Na/GO, Zn/GO, Fe/GO, and Cu/GO batteries. They are fabricated via the simple assembly of metal foils with GO films, in which M plays the role of anode, and GO acts as both cathode and separator. Among them, Li/GO battery generates the highest specific capacity of 1572 mAh cm−3 (about 1604 mAh g−1). The energy density of M/GO battery is determined by the contact area of M with GO. Therefore, three-dimensional (3D) M/GO battery will deliver higher energy in comparison to 2D planar M/GO battery. As expected, a semi-solid 3D-Cu/GO redox flow battery (RFB) is assembled by 3D Cu foam with flowing GO/ionic-liquid catholyte. Its specific capacity is ca. 97 times that of Cu foil/GO RFB. Besides, a compressible, all-solid-state, and pressure-responsive 3D-GO/Zn battery is also fabricated. It can accurately control the energy output in response to pressure stimulations without the aid of conventional battery management system. Beyond those demonstrated in this work, the concept of M/GO battery will shed light on the design of similar electrochemical power sources.
UR - http://www.scopus.com/inward/record.url?scp=85029679744&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2017.09.070
DO - 10.1016/j.carbon.2017.09.070
M3 - Article
AN - SCOPUS:85029679744
SN - 0008-6223
VL - 125
SP - 299
EP - 307
JO - Carbon
JF - Carbon
ER -