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Lithium n‐Doped Polyaniline as a High‐Performance Electroactive Material for Rechargeable Batteries
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-01-03 , DOI: 10.1002/anie.201607820 Pablo Jiménez 1 , Eric Levillain 2 , Olivier Alévêque 2 , Dominique Guyomard 1 , Bernard Lestriez 1 , Joël Gaubicher 1
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-01-03 , DOI: 10.1002/anie.201607820 Pablo Jiménez 1 , Eric Levillain 2 , Olivier Alévêque 2 , Dominique Guyomard 1 , Bernard Lestriez 1 , Joël Gaubicher 1
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The discovery of conducting lithium‐doped polyaniline with reversible redox chemistry allows simultaneous unprecedented capacity and stability in a non‐aqueous Li battery. This compound (lithium emeraldinate) was synthesized by lithium–proton exchange on the emeraldine base in an anhydrous lithium‐based electrolyte. A combination of UV/Vis‐NIR spectroelectrochemistry, XPS, FTIR, and EQCM characterization allowed a unified description of the chemical and electrochemical behavior, showing facile charge delocalization of the doped states and the reversibility of the redox processes in this form of polyaniline. From a practical point of view, lithium emeraldinate behaves as a high‐capacity organic active material (230 mAh g−1) that enables preparation of relatively thick composite electrodes with a low amount of carbon additives and high energy density (460 Wh kg−1). Concomitantly, at 1C rate, 400 cycles were achieved without significant capacity loss, while the coulombic efficiency is greater than 99 %.
中文翻译：
锂n掺杂聚苯胺作为可充电电池的高性能电活性材料
发现具有可逆氧化还原化学作用的掺杂锂的聚苯胺能够在非水Li电池中同时实现前所未有的容量和稳定性。这种化合物（翡翠酸锂）是通过在无水锂基电解质中在翡翠碱上进行锂-质子交换而合成的。将UV / Vis-NIR光谱电化学，XPS，FTIR和EQCM表征相结合，可以对化学和电化学行为进行统一描述，显示出以这种形式的聚苯胺可轻松实现掺杂态的电荷离域和氧化还原过程的可逆性。从实践的角度来看，翡翠锂具有高容量的有机活性物质（230 mAh g -1）使得能够制备具有低碳添加剂量和高能量密度（460 Wh kg -1）的相对较厚的复合电极。伴随地，在1 ℃的速率下，实现了400个循环而没有明显的容量损失，而库仑效率大于99％。
更新日期：2017-01-03
中文翻译：
锂n掺杂聚苯胺作为可充电电池的高性能电活性材料
发现具有可逆氧化还原化学作用的掺杂锂的聚苯胺能够在非水Li电池中同时实现前所未有的容量和稳定性。这种化合物（翡翠酸锂）是通过在无水锂基电解质中在翡翠碱上进行锂-质子交换而合成的。将UV / Vis-NIR光谱电化学，XPS，FTIR和EQCM表征相结合，可以对化学和电化学行为进行统一描述，显示出以这种形式的聚苯胺可轻松实现掺杂态的电荷离域和氧化还原过程的可逆性。从实践的角度来看，翡翠锂具有高容量的有机活性物质（230 mAh g -1）使得能够制备具有低碳添加剂量和高能量密度（460 Wh kg -1）的相对较厚的复合电极。伴随地，在1 ℃的速率下，实现了400个循环而没有明显的容量损失，而库仑效率大于99％。
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