Low-cost and high safe manganese-based aqueous battery for grid energy storage and conversion

Jianhang Huang; Zhaowei Guo; Xiaoli Dong; Duan Bin; Yonggang Wang; Yongyao Xia

doi:10.1016/j.scib.2019.09.020

Low-cost and high safe manganese-based aqueous battery for grid energy storage and conversion

Sci Bull (Beijing). 2019 Dec 15;64(23):1780-1787. doi: 10.1016/j.scib.2019.09.020. Epub 2019 Sep 19.

Authors

Jianhang Huang¹, Zhaowei Guo², Xiaoli Dong², Duan Bin², Yonggang Wang³, Yongyao Xia⁴

Affiliations

¹ Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China; School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China.
² Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
³ Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China. Electronic address: ygwang@fudan.edu.cn.
⁴ Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China; Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China. Electronic address: yyxia@fudan.edu.cn.

PMID: 36659537
DOI: 10.1016/j.scib.2019.09.020

Abstract

As an effective energy storage technology, rechargeable batteries have long been considered as a promising solution for grid integration of intermittent renewables (such as solar and wind energy). However, their wide application is still limited by safety issue and high cost. Herein, a new battery chemistry is proposed to satisfy the requirements of grid energy storage. We report a simple Cu-Mn battery, which is composed of two separated current collectors in an H₂SO₄-CuSO₄-MnSO₄ electrolyte without using any membrane. The Cu-Mn battery shows an energy density of 40.8 Wh L^-1, a super-long life of 10,000 cycles (without obvious capacity decay) and negligible self-discharge. And the capital cost of US$ 11.9 kWh^-1 based on electrolyte is lower than any previous batteries. More importantly, the battery can still work smoothly during thermal abuse test and drill-through test, showing high safe nature. Furthermore, a combination system integrating the Cu-Mn battery and hydrogen evolution is also proposed, which is able to avoid the generation of explosive H₂/O₂ mixture, and presents an efficient approach for grid energy storage and conversion.

Keywords: Aqueous battery; Copper electrode; Decoupled hydrogen evolution; Large-scale energy storage; Manganese dioxide; Water splitting.