Li Chunyang, Zhang Dexin, Ma Fuxiang, Ma Tianyi, Wang Jing, Chen Yuhui, Zhu Yusong, Fu Lijun, Wu Yuping, Huang Wei
State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China.
Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 210009, China.
ChemSusChem. 2019 Aug 22;12(16):3732-3736. doi: 10.1002/cssc.201901622. Epub 2019 Jul 30.
Unlike traditional metal-ion insertion, the emerging aqueous rechargeable ammonium-ion batteries (ARABs) brings new battery chemistries for future stationary energy storage. However, low energy density and low durability hinder the further development of ARABs because of the lack of suitable and cost-efficient anodes. In this study, an aqueous rechargeable ammonium zinc hybrid battery is fabricated from durable corner-truncated sodium iron hexacyanoferrate nanocubes as the cathode and low-cost zinc as the anode. This novel hybrid battery demonstrates an average working voltage of 1.3 V, excellent rate capability, and a high energy density of 81.7 Wh kg at 286 W kg (based on two electrodes' active mass), as well as a long lifespan with 92.1 % capacity retention after 2000 cycles, outperforming the reported ARABs and many aqueous hybrid batteries. The strategy to assemble the ammonium zinc hybrid battery provides guidance for improving the feasibility of ARABs for practical application.
与传统的金属离子插入方式不同，新兴的水系可充电铵离子电池（ARABs）为未来的固定式储能带来了新的电池化学体系。然而，由于缺乏合适且具有成本效益的阳极，低能量密度和低耐久性阻碍了ARABs的进一步发展。在本研究中，一种水系可充电铵锌混合电池由耐用的角截断六氰合铁酸钠纳米立方体作为阴极和低成本的锌作为阳极制成。这种新型混合电池展示了1.3 V的平均工作电压、出色的倍率性能以及在286 W kg时81.7 Wh kg的高能量密度（基于两个电极的活性质量），并且具有长寿命，在2000次循环后容量保持率为92.1%，优于已报道的ARABs和许多水系混合电池。组装铵锌混合电池的策略为提高ARABs实际应用的可行性提供了指导。
