Highly Stable Aqueous Zinc-Ion Storage Using a Layered Calcium Vanadium Oxide Bronze Cathode

被引：922
作者：
Xia, Chuan [1 ]
Guo, Jing [1 ]
Li, Peng [1 ]
Zhang, Xixiang [1 ]
Alshareef, Husam N. [1 ]
机构：
[1] KAUST, Mat Sci & Engn, Thuwal 239556900, Saudi Arabia
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 15期
关键词：
batteries; calcium vanadium oxide bronze; electrode materials; intercalation; zinc; CENTER DOT H2O; VOPO4; NANOSHEETS; ENERGY-STORAGE; HIGH-CAPACITY; LOW-COST; INTERCALATION; BATTERIES; HEXACYANOFERRATE; SODIUM;
D O I：
10.1002/anie.201713291
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Cost-effective aqueous rechargeable batteries are attractive alternatives to non-aqueous cells for stationary grid energy storage. Among different aqueous cells, zinc-ion batteries (ZIBs), based on Zn2+ intercalation chemistry, stand out as they can employ high-capacity Zn metal as the anode material. Herein, we report a layered calcium vanadium oxide bronze as the cathode material for aqueous Zn batteries. For the storage of the Zn2+ ions in the aqueous electrolyte, we demonstrate that the calcium-based bronze structure can deliver a high capacity of 340mAhg(-1) at 0.2C, good rate capability, and very long cycling life (96% retention after 3000 cycles at 80C). Further, we investigate the Zn2+ storage mechanism, and the corresponding electrochemical kinetics in this bronze cathode. Finally, we show that our Zn cell delivers an energy density of 267Whkg(-1) at a power density of 53.4Wkg(-1).
引用
收藏
页码：3943 / 3948
页数：6
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