Redox active poly(N-vinylcarbazole) for use in rechargeable lithium batteries

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• 作者：Masaru Yao ; ^{m.yao@aist.go.jp} ; Hiroshi Senoh ; Tetsuo Sakai ; Tetsu Kiyobayashi
• 关键词：Organic positive-electrode material ; poly(N-vinylcarbazole) (PVK or PVCz) ; Redox active binder ; Composite electrode
• 刊名：Journal of Power Sources
• 出版年：2012
• 出版时间：15 March, 2012
• 年：2012
• 卷：202
• 期：Complete
• 页码：364-368
• 全文大小：461 K

文摘

The performance of poly(N-vinylcarbazole) (PVK) for use in rechargeable lithium batteries was investigated. The positive-electrode (cathode) using PVK as an active material exhibited a discharge capacity of more than 120 mAh g^?_(PVK) with a mean potential of 3.7 V vs. Li⁺/Li. The PVK-electrode showed a stable cycle-life performance. In addition, the application of this polymer as a redox active binder material was also examined using a composite electrode with lithium iron phosphate (LiFePO₄). The LiFePO₄-PVK composite electrode showed a higher total discharge capacity than the conventional LiFePO₄-PVDF electrode.