Cai Wenlong, Yao Yu-Xing, Zhu Gao-Long, Yan Chong, Jiang Li-Li, He Chuanxin, Huang Jia-Qi, Zhang Qiang
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
Chem Soc Rev. 2020 Jun 21;49(12):3806-3833. doi: 10.1039/c9cs00728h. Epub 2020 Jun 1.
With the impetus to accelerate worldwide market adoption of electrical vehicles and afford consumer electronics with better user experience, advancing fast-charging technology is an inevitable trend. However, current high-energy lithium-ion batteries are unable to support ultrafast power input without any adverse consequences, with the capacity fade and safety concerns of the mainstream graphite-based anodes being the key technological barrier. The aim of this review is to summarise the fundamentals, challenges, and solutions to enable graphite anodes that are capable of high-rate charging. First, we explore the complicated yet intriguing graphite-electrolyte interface during intercalation based on existing theories. Second, we analyse the key dilemmas facing fast-charging graphite anodes. Finally, some promising strategies proposed during the past few years are highlighted so as to outline current trends and future perspectives in this field.
随着加速全球电动汽车市场采用以及为消费电子产品提供更好用户体验的推动，推进快速充电技术是必然趋势。然而，当前的高能锂离子电池在没有任何不良后果的情况下无法支持超快功率输入，主流石墨基负极的容量衰减和安全问题是关键技术障碍。本综述的目的是总结使石墨负极能够实现高倍率充电的基本原理、挑战和解决方案。首先，我们基于现有理论探索嵌入过程中复杂而有趣的石墨-电解质界面。其次，我们分析快速充电石墨负极面临的关键困境。最后，强调过去几年提出的一些有前景的策略，以概述该领域的当前趋势和未来前景。
