Crystalline polycyclic quinone derivatives as organic positive-electrode materials for use in rechargeable lithium batteries

详细信息    查看全文

• 作者：Masaru Yao ; ^{m.yao@aist.go.jp} ; Shin-ichi Yamazaki ; Hiroshi Senoh ; Tetsuo Sakai ; Tetsu Kiyobayashi
• 关键词：Organic positive-electrode material ; Lithium ion battery ; Multi-electron redox
• 刊名：Materials Science and Engineering: B
• 出版年：2012
• 出版时间：15 April, 2012
• 年：2012
• 卷：177
• 期：6
• 页码：483-487
• 全文大小：1852 K

文摘

The performance of 9,10-anthraquinone (AQ), and 5,7,12,14-pentacenetetrone (PT) as active materials for rechargeable lithium batteries was investigated. Positive-electrodes in which AQ and PT were incorporated showed initial discharge capacities of greater than 200 mAh/g_{(AQ or PT)}. The obtained discharge capacities suggest that a multi-electron redox reaction takes place in each derivative. The discharge capacity of the positive-electrode with AQ rapidly decreased during the charge/discharge cycles; however, the positive-electrode with PT showed a relatively good cycle-life performance; it maintained about 80 % of the initial capacity even after 100 cycles.