氧化还原
锂(药物)
电解质
阴极
过渡金属
化学
无机化学
配体(生物化学)
金属有机骨架
配位聚合物
聚合物
有机自由基电池
化学工程
材料科学
电极
催化作用
有机化学
物理化学
医学
生物化学
工程类
内分泌学
吸附
受体
作者
Yuwen Luo,Jinlong Liu,Lei Zhang
标识
DOI:10.1002/ange.202209458
摘要
Abstract Coordination polymers can take advantage of both transition metal redox and organic ligand redox, thus serving as promising cathodes with multiple redox centers toward higher‐performance lithium‐ion batteries (LIBs). Here, we selected the high‐capacity carbonyl compound of chloranilic acid (CA) as organic ligand to coordinate with the high‐voltage Cu 2+ as transition metal node and successfully synthesized copper(II) chloranilate (CuCA) with π–d conjugation, layered structure and monocrystalline nature. The resulting CuCA presents inorganic and organic redox centers, high electronic conductivity and fast Li + diffusion kinetics, leading to high discharge capacity (297.0 mAh g −1 at 50 mA g −1 ), excellent rate capability (160.6 mAh g −1 at 1000 mA g −1 ) and good cycling stability (165.5 mAh g −1 at 500 mA g −1 after 50 cycles) with quasi‐solid‐state electrolyte. This work will provide insightful understanding of the materials design strategies to develop more efficient coordination polymer cathodes for LIBs.
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