Huang Jianhang, Guo Zhaowei, Dong Xiaoli, Bin Duan, Wang Yonggang, Xia Yongyao
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.
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.
Sci Bull (Beijing). 2019 Dec 15;64(23):1780-1787. doi: 10.1016/j.scib.2019.09.020. Epub 2019 Sep 19.
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 HSO-CuSO-MnSO electrolyte without using any membrane. The Cu-Mn battery shows an energy density of 40.8 Wh L, 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 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 H/O mixture, and presents an efficient approach for grid energy storage and conversion.
作为一种有效的储能技术，可充电电池长期以来一直被视为间歇性可再生能源（如太阳能和风能）并入电网的一个有前景的解决方案。然而，其广泛应用仍受到安全问题和高成本的限制。在此，提出一种新的电池化学体系以满足电网储能的要求。我们报道了一种简单的铜锰电池，它由两个分离的集流体组成，置于HSO-CuSO-MnSO电解液中，且不使用任何隔膜。该铜锰电池的能量密度为40.8 Wh L，具有长达10000次循环的超长寿命（无明显容量衰减）且自放电可忽略不计。基于电解液计算，其投资成本为11.9美元/kWh，低于此前的任何电池。更重要的是，该电池在热滥用测试和穿刺测试中仍能平稳运行，显示出高安全性。此外，还提出了一种将铜锰电池与析氢相结合的组合系统，该系统能够避免爆炸性H/O混合物的产生，并为电网储能和转换提供了一种有效方法。
