All-Solid-State Lithium Organic Battery with Composite Polymer Electrolyte and Pillar[5]quinone Cathode

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• 作者：Zhiqiang Zhu ; Meiling Hong ; Dongsheng Guo ; Jifu Shi ; Zhanliang Tao ; Jun Chen
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：November 26, 2014
• 年：2014
• 卷：136
• 期：47
• 页码：16461-16464
• 全文大小：280K
• ISSN：1520-5126

文摘

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^鈥? at room temperature. Furthermore, pillar[5]quinine cathode in all-solid-state battery rendered an average operation voltage of 鈭?.6 V and a high initial capacity of 418 mAh g^鈥? 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.