A Self-Healing Aqueous Lithium-Ion Battery

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• 作者：Yang Zhao ; Ye Zhang ; Hao Sun ; Xiaoli Dong ; Jingyu Cao ; Lie Wang ; Yifan Xu ; Jing Ren ; Yunil Hwang ; Dr. In Hyuk Son ; Dr. Xianliang Huang ; Prof. Yonggang Wang and Prof. Huisheng Peng
• 刊名：Angewandte Chemie
• 出版年：2016
• 出版时间：November 7, 2016
• 年：2016
• 卷：128
• 期：46
• 页码：14596-14600
• 全文大小：1495K
• ISSN：1521-3757

文摘

Flexible lithium-ion batteries are critical for the next-generation electronics. However, during the practical application, they may break under deformations such as twisting and cutting, causing their failure to work or even serious safety problems. A new family of all-solid-state and flexible aqueous lithium ion batteries that can self-heal after breaking has been created by designing aligned carbon nanotube sheets loaded with LiMn₂O₄ and LiTi₂(PO₄)₃ nanoparticles on a self-healing polymer substrate as electrodes, and a new kind of lithium sulfate/sodium carboxymethylcellulose serves as both gel electrolyte and separator. The specific capacity, rate capability, and cycling performance can be well maintained after repeated cutting and self-healing. These self-healing batteries are demonstrated to be promising for wearable devices.