An organic/inorganic electrode-based hydronium-ion battery.,Nature Communications

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An organic/inorganic electrode-based hydronium-ion battery.
Nature Communications ( IF 14.7 ) Pub Date : 2020-02-19 , DOI: 10.1038/s41467-020-14748-5
Zhaowei Guo ₁ , Jianhang Huang ₁ , Xiaoli Dong ₁ , Yongyao Xia ₁ , Lei Yan ₁ , Zhuo Wang ₁ , Yonggang Wang ₁

Affiliation

Hydronium-ion batteries are regarded as one of the most promising energy technologies as next-generation power sources, benefiting from their cost effectivity and sustainability merits. Herein, we propose a hydronium-ion battery which is based on an organic pyrene-4,5,9,10-tetraone anode and an inorganic MnO2@graphite felt cathode in an acid electrolyte. Its operation involves a quinone/hydroquinone redox reaction on anode and a MnO2/Mn2+ conversion reaction on cathode, in parallel with the transfer of H3O+ between two electrodes. The distinct operation mechanism affords this hydronium-ion battery an energy density up to 132.6 Wh kg-1 and a supercapacitor-comparable power density of 30.8 kW kg-1, along with a long-term cycling life over 5000 cycles. Furthermore, surprisingly, this hydronium-ion battery works well even with a frozen electrolyte under -40 °C, and superior rate performance and cycle stability remain at -70 °C.

中文翻译：

一种基于有机/无机电极的水合氢离子电池。

水合氢离子电池由于其成本效益和可持续性优点而被视为下一代电源中最有前途的能源技术之一。在此，我们提出一种水合氢离子电池，其基于酸性电解液中的有机pyr-4,5,9,10-四酮阳极和无机MnO2 @石墨毡阴极。其操作涉及阳极上的醌/氢醌氧化还原反应和阴极上的MnO2 / Mn2 +转化反应，同时在两个电极之间进行H3O +的转移。独特的运行机制为这种水合氢离子电池提供高达132.6 Wh kg-1的能量密度和30.8 kW kg-1的超级电容器可比功率密度，以及超过5000次循环的长期循环寿命。此外，令人惊讶的是，

更新日期：2020-02-19

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