High performance aluminum ion battery using polyaniline/ordered mesoporous carbon composite
High performance aluminum ion battery using polyaniline/ordered mesoporous carbon composite
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采用聚苯胺/有序介孔碳复合材料的高性能铝离子电池
DOI：
10.1016/j.jpowsour.2020.228702
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发表时间：
2020-11
影响因子：
9.2
通讯作者：
Wei Xing
中科院分区：
文献类型：
--
作者：
Yifei Liao;D;an Wang;Xuejin Li;Shuang Tian;Haoyu Hu;Dongqing Kong;Tonghui Cai;Pengcheng Dai;Hao Ren;Han Hu;Yanpeng Li;Qingzhong Xue;Zifeng Yan;Xiuli Gao;Wei Xing
铝离子蓄电池（AIB）由于其潜在的高容量和高安全性而成为电化学电源的一个重要研究方向。然而，大多数研究的石墨和金属二硫属化物阴极材料通常分别具有中等容量和较差的循环稳定性，这限制了当前AIB的性能。本文以氯铝酸盐离子液体为电解质，制备了聚苯胺/有序介孔碳复合材料作为铝电解质电池的阴极材料。在充放电过程中，在1.1 V和1.5-1.7 V的高电压下观察到两个明显的平台。PANI/OMC阴极在高比容量（100 mA g-1时为140 mAh g-1）、良好的倍率性能（2000 mA g-1时为118 mAh g-1）和出色的循环稳定性（5000次循环后容量仅损失12%）方面表现出出色的性能。基于异位表征，发现PANI的电荷存储是通过阴离子如AlCl 4 −的掺杂/脱掺杂实现的。
Aluminum-ion battery (AIB) is intriguing for electrochemical power sources due to its potentially high capacity and high safety. However, the most investigated graphitic and metal dichalcogenide cathode materials normally possess moderate capacity and inferior cycling stability, respectively, which limit the performance of current AIBs. Here, we develop a polyaniline (PANI)/ordered mesoporous carbon (OMC) composite as a cathode material of AIB using chloroaluminate ionic liquid as an electrolyte. During the charging/discharging process, two obvious platforms are observed at high voltages of 1.1 V and 1.5–1.7 V. The PANI/OMC cathode exhibits outstanding performance in terms of high specific capacity (140 mAh g−1at 100 mA g−1), good rate performance (118 mAh g−1at 2000 mA g−1) and excellent cycling stability (only 12% loss of capacity after 5000 cycles). Based on theex-situcharacterizations, the charge storage of PANI is found to be via the doping/de-doping of anions such as AlCl4−.
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影响因子：
16.6
作者：
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通讯作者：
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影响因子：
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9.5
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