期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 7, 页码 8353-8360出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c20543
关键词
aqueous electrolyte; aluminum-ion batteries; Prussian white analogues; organic electrode materials; rocking chair
资金
- National Key R&D Program of China [2018YFB0104300]
- Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang [2019R01006]
- National Natural Science Foundation of China [51972293]
This research presents a novel aqueous aluminum-ion battery system utilizing a Prussian white cathode and 9,10-anthraquinone anode to enable a rocking-chair battery design, demonstrating fast reaction kinetics and cycling stability.
Temporally intermittent and spatially dispersed renewable energy sources strongly call for large-scale energy storage devices. Aqueous aluminum-ion batteries show great potential for application due to their safety and low cost. Thus far, however, the ideal full-battery configuration is beyond the scope due to shortcomings with regards to suitable anode and cathode materials. Herein, we report a pioneering aqueous aluminum-ion battery system consisting of a Prussian white cathode, 1 M Al-2(SO4)(3) aqueous electrolyte, and an organic 9,10-anthraquinone anode. The oxidation capability of the Prussian white cathode during the first charging allows for the fabrication of the full battery without pre-inserting aluminum ions, thus making the rocking-chair-type battery feasible. Importantly, the open-framework structure of the Prussian white and distinct enolization charge storage mechanism of 9,10-anthraquinone ensure fast reaction kinetics. The full battery exhibits cycling stability with a capacity retention of 89.1% over 100 cycles at 500 mA g(-1), finishing a cycle in about 10 min. This work provides a pathway for developing rechargeable aqueous aluminum-ion batteries.
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