All-solid-state lithium organic battery with composite polymer electrolyte and pillar[5]quinone cathode.
All-solid-state lithium organic battery with composite polymer electrolyte and pillar[5]quinone cathode.
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DOI：
10.1021/ja507852t
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发表时间：
2014-11
影响因子：
15
通讯作者：
Zhiqiang Zhu;Meiling Hong;Dong-sheng Guo;Jifu Shi;Zhanliang Tao;Jun Chen
中科院分区：
文献类型：
--
作者：
Zhiqiang Zhu;Meiling Hong;Dong-sheng Guo;Jifu Shi;Zhanliang Tao;Jun Chen
采用无机电极和液态电解质的普通锂离子电池正极容量有待进一步提高。另外，由有机化合物电极组成的全固态锂电池可以提供更高的容量。本文成功制备了基于有机柱状[5]醌（c35h2010）阴极和复合聚合物电解质（CPE）的全固态锂电池。在室温下，聚甲基丙烯酸酯(PMA)/聚乙二醇(PEG)-LiClO4-3 wt % SiO2 CPE的最佳离子电导率为0.26 mS cm（-1）。此外，在全固态电池中，柱状[5]奎宁阴极的平均工作电压为~ 2.6 V，初始容量为418 mAh g(-1)，并且通过烯酸酯/奎宁羰基的可逆氧化还原反应，在0.2C速率下循环50次后具有稳定的可循环性（94.7%的容量保留率），具有良好的高容量器件应用前景。
The cathode capacity of common lithium ion batteries (LIBs) using inorganic electrodes and liquid electrolytes must be further improved. Alternatively, all-solid-state lithium batteries comprising the electrode of organic compounds can offer much higher capacity. Herein, we successfully fabricated an all-solid-state lithium battery based on organic pillar[5]quinone (C35H20O10) cathode and composite polymer electrolyte (CPE). The poly(methacrylate) (PMA)/poly(ethylene glycol) (PEG)-LiClO4-3 wt % SiO2 CPE has an optimum ionic conductivity of 0.26 mS cm(-1) at room temperature. Furthermore, pillar[5]quinine cathode in all-solid-state battery rendered an average operation voltage of ∼2.6 V and a high initial capacity of 418 mAh g(-1) with a stable cyclability (94.7% capacity retention after 50 cycles at 0.2C rate) through the reversible redox reactions of enolate/quinonid carbonyl groups, showing favorable prospect for the device application with high capacity.