An aqueous manganese-copper battery for large-scale energy storage applications

被引：47
作者：
Wei, L. [1 ]
Zeng, L. [1 ]
Wu, M. C. [1 ]
Jiang, H. R. [1 ]
Zhao, T. S. [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, HKUST Energy Inst, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2019年 / 423卷
关键词：
Mn-Cu battery; Celgard separator; Low cost; Energy storage; REDOX FLOW BATTERY; DRAMATIC PERFORMANCE GAINS; POLYBENZIMIDAZOLE MEMBRANES; FUEL-CELL; ELECTRODE; ZINC; HYDROGEN; DIOXIDE; FELT;
D O I：
10.1016/j.jpowsour.2019.03.085
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This work reports on a new aqueous battery consisting of copper and manganese redox chemistries in an acid environment. The battery achieves a relatively low material cost due to ubiquitous availability and inexpensive price of copper and manganese salts. It exhibits an equilibrium potential of similar to 1.1 V, and a coulombic efficiency of higher than 94% is obtained at an operating current of 20 mA cm(-2). Cyclic tests confirm that the energy efficiency maintains similar to 79% with no observable decay at 10 mA cm(-2) over 100 cycles. Possessing other advantages such as ease of scalability and capable of using an inexpensive separator, the battery offers a promising solution for large-scale energy storage applications.
引用
收藏
页码：203 / 210
页数：8
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