标题：
A novel aqueous ammonium dual-ion battery based on organic polymers
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所属单位：
材料科学与技术学院
发表刊物：
J. Mater. Chem. A
摘要：
Aqueous dual-ion batteries, one of the latest battery systems, have attracted considerable attention due to their merits of high safety, low cost and environment friendliness except for their high energy density and power density. However, the conventional employment of inorganic electrode materials usually leads to low power density and high cost. Herein, we present a novel aqueous ammonium dual-ion battery (ADIB) with a maximum operating voltage of 1.9 V, in which green and metal-free organic materials such as n-type polyimide and p-type radical polymers serve as anode and cathode, respectively, and 1 M ammonium sulfate solution acts as the electrolyte. During the charging process, the n-type polyimide can combine with cations, while p-type radical polymers can simultaneously accept anions, whereas the cations and anions can reversibly diffuse back to the electrolyte during the discharging process. This ingenious combination makes an assembled ADIB deliver a high energy density of 51.3 W h kg-1 and a maximum power density of 15.8 kW kg-1 (based on the total active weight of both cathode and anode), along with a good cycling stability with 86.4% capacity retention after 10000 cycles at a current density of 5 A g-1. © The Royal Society of Chemistry 2019.
ISSN号：
2050-7488
是否译文：
否
发表时间：
2019-01-01
合写作者：
Zhang, Yadi,An, Yufeng,Yin, Bo,Jiang, Jiangmin,Dong, Shengyang,张校刚
通讯作者：
窦辉
发表时间：
2019-01-01
学位：理学博士学位
职称：教授
所在单位：材料科学与技术学院