Zhu Gao-Long, Zhao Chen-Zi, Huang Jia-Qi, He Chuanxin, Zhang Jian, Chen Shaohai, Xu Lei, Yuan Hong, Zhang Qiang
Shenzhen Key Laboratory of Functional Polymer, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, 518061, China.
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
Small. 2019 Apr;15(15):e1805389. doi: 10.1002/smll.201805389. Epub 2019 Mar 14.
Fast charging enables electronic devices to be charged in a very short time, which is essential for next-generation energy storage systems. However, the increase of safety risks and low coulombic efficiency resulting from fast charging severely hamper the practical applications of this technology. This Review summarizes the challenges and recent progress of lithium batteries for fast charging. First, it describes the definition of fast charging and proposes a critical value of ionic and electrical conductivity of electrodes for fast charging in a working battery. Then based on this definition, the requirements and optimization strategies of the electrode, electrolyte, and electrode/electrolyte interface for fast charging are proposed. Finally, a general conclusion and perspectives on the better understanding of lithium batteries with fast charging capability are presented.
快速充电使电子设备能够在极短时间内充电，这对于下一代储能系统至关重要。然而，快速充电带来的安全风险增加和库仑效率低下严重阻碍了该技术的实际应用。本综述总结了用于快速充电的锂电池面临的挑战和近期进展。首先，它描述了快速充电的定义，并提出了工作电池中实现快速充电的电极离子和电导率的临界值。然后基于此定义，提出了快速充电对电极、电解质和电极/电解质界面的要求及优化策略。最后，给出了关于更好理解具有快速充电能力的锂电池的一般性结论和展望。
