Wang Zhiqian, Meng Xianyang, Chen Kun, Mitra Somenath
Department of Chemistry and Environmental Science, New Jersey Institute of Technology, 161 Warren Street, Newark, NJ 07102, United States.
Energy Storage Mater. 2019 May;19:206-211. doi: 10.1016/j.ensm.2019.02.021. Epub 2019 Feb 26.
We present sodium manganese periodate (NaMnIO) as a novel cathode material, which exhibited a nine-electron discharge process, for the development of high-performance aqueous battery systems. Purified carbon nanotubes (CNTs) were selected as conductive cathode additive. Along with an anion exchange membrane, acid-salt water dual electrolytes were used to reduce anode corrosion. NaMnIO showed a specific capacity as high as 750 mAh g in prototype batteries, which was nearly 94% of the theoretical capacity. Different anode metals were studied and the Mg system showed the highest specific energy of 746Wh kg. Furthermore, these batteries fabricated using 3D-printed casings also feature replaceable electrodes once they are consumed.
我们展示了高碘酸钠锰（NaMnIO）作为一种新型阴极材料，其展现出九电子放电过程，用于高性能水系电池系统的开发。选用纯化的碳纳米管（CNTs）作为导电阴极添加剂。连同阴离子交换膜一起，使用酸碱双电解质来减少阳极腐蚀。在原型电池中，NaMnIO表现出高达750 mAh g的比容量，几乎是理论容量的94%。研究了不同的阳极金属，镁体系显示出最高的比能量，为746Wh kg。此外，这些使用3D打印外壳制造的电池在电极消耗后还具有可更换电极的特点。
