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High capacity aqueous periodate batteries featuring a nine-electron transfer process.

ABSTRACT: We present sodium manganese periodate (NaMnIO6) 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. NaMnIO6 showed a specific capacity as high as 750 mAh g-1 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-1. Furthermore, these batteries fabricated using 3D-printed casings also feature replaceable electrodes once they are consumed.

SUBMITTER: Wang Z

PROVIDER: S-EPMC6666422 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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High capacity aqueous periodate batteries featuring a nine-electron transfer process.

Wang Zhiqian Z Meng Xianyang X Chen Kun K Mitra Somenath S

Energy storage materials 20190226

We present sodium manganese periodate (NaMnIO6) 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. NaMnIO6 showed a specific capacity as high as 750 mAh g-1 in prototype batteries, whi ...[more]

PMID: 31363505

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