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Ultrahigh-Capacity Organic Anode with High-Rate Capability and Long Cycle Life for Lithium-Ion Batteries
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-08-25 00:00:00 , DOI: 10.1021/acsenergylett.7b00622 Yan Wang 1 , Yonghong Deng 2 , Qunting Qu 1 , Xueying Zheng 1 , Jingyu Zhang 1 , Gao Liu 3 , Vincent S. Battaglia 3 , Honghe Zheng 1
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-08-25 00:00:00 , DOI: 10.1021/acsenergylett.7b00622 Yan Wang 1 , Yonghong Deng 2 , Qunting Qu 1 , Xueying Zheng 1 , Jingyu Zhang 1 , Gao Liu 3 , Vincent S. Battaglia 3 , Honghe Zheng 1
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Organic rechargeable batteries have attracted extensive attention as a potential alternative for the current lithium-ion batteries. However, most of the reports are limited to organic macromolecules or modified small organic molecules which exhibit low reversible capacity, poor rate capability, and very limited cycle life. Herein, a small organic compound, maleic acid, is adopted as the anode for lithium ion batteries without any modification. It exhibits an ultrahigh reversible capacity of ca. 1500 mAh g–1 at 46.2 mA g–1 current density. Even at a high current density of 46.2 A g–1, the electrode still delivers a capacity of 570.8 mAh g–1. When cycled at 2.31 A g–1, a capacity retention of 98.1% is obtained after 500 cycles. The excellent performance of the maleic acid organic anode is ascribed to its small volume effect and unique lithium-ion storage mechanisms. This new type of organic anode material may have a great opportunity for large-scale energy-storage systems with high-power properties.
中文翻译：
锂离子电池具有高容量和长循环寿命的超高容量有机阳极
作为当前锂离子电池的潜在替代品，有机可充电电池已引起广泛关注。但是，大多数报道仅限于有机大分子或改性的有机小分子，它们显示出低的可逆容量，差的速率能力以及非常有限的循环寿命。在本文中，小的有机化合物马来酸被用作锂离子电池的阳极而没有任何修改。它表现出约200的超高可逆容量。电流密度为46.2 mA g –1时为1500 mAh g –1。即使在46.2 A g –1的高电流密度下，电极仍可提供570.8 mAh g –1的容量。当以2.31 A g –1循环时，经过500次循环后，容量保持率为98.1％。马来酸有机阳极的优异性能归因于其小体积效应和独特的锂离子存储机制。对于具有高功率特性的大规模储能系统而言，这种新型的有机阳极材料可能具有巨大的机会。
更新日期：2017-08-25
中文翻译：
锂离子电池具有高容量和长循环寿命的超高容量有机阳极
作为当前锂离子电池的潜在替代品，有机可充电电池已引起广泛关注。但是，大多数报道仅限于有机大分子或改性的有机小分子，它们显示出低的可逆容量，差的速率能力以及非常有限的循环寿命。在本文中，小的有机化合物马来酸被用作锂离子电池的阳极而没有任何修改。它表现出约200的超高可逆容量。电流密度为46.2 mA g –1时为1500 mAh g –1。即使在46.2 A g –1的高电流密度下，电极仍可提供570.8 mAh g –1的容量。当以2.31 A g –1循环时，经过500次循环后，容量保持率为98.1％。马来酸有机阳极的优异性能归因于其小体积效应和独特的锂离子存储机制。对于具有高功率特性的大规模储能系统而言，这种新型的有机阳极材料可能具有巨大的机会。
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