Nitrogen-doped carbonized polyimide microsphere as a novel anode material for high performance lithium ion capacitors
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- 作者：Xiaoqi Hana ; 1 ; Pengxian Hanb ; 1 ; Jianhua Yaob ; Shu Zhangb ; Xiaoyan Caoa ; caoxy@ouc.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Junwei Xiongc ; Junnan Zhangd ; Guanglei Cuib ; cuigl@qibebt.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Lithium ion capacitor ; Polyimide microsphere ; Nitrogen doping ; Carbonization ; Pre-lithiation
- 刊名：Electrochimica Acta
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：196
- 期：Complete
- 页码：603-610
- 全文大小：2641 K
文摘
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Nitrogen-doped CPIMS was synthesized through solvothermal method followed by carbonization.
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LICs were assembled using pre-lithiated CPIMS anode and AC cathode.
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The LIC delivers energy density of 28.5 Wh kg−1 at 348 W kg−1 based on electrode materials mass.
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Even at 6940 W kg−1, the energy density is still remains 13.1 Wh kg−1.
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The capacity retention ratio is as high as 97.1% after 5000 cycles at 500 mAg−1.