摘要
Lithium-ion batteries(LIBs)with fast-charging capability are essential for enhancing consumer experience and accelerating the global market adoption of electric vehicles.However,achieving fast-charging capability without compromising energy density,cycling lifespan,and safety of LIBs remains a significant challenge due to the formation of dendritic Li metal on graphite anode under fast charging condition.In view of this,the fundamentals for the dendritic metallic Li formation and the strategies for suppressing metallic Li plating based on analyzing the entire Li^(+)transport pathway at the anode including electrolyte,pore structure of electrode,and surface and bulk of materials are summarized and discussed in this review.Besides,we highlight the importance of designing thick electrodes with fast Li^(+)transport kinetics and comprehensively understanding the interaction between solid electrolyte interphase(SEI)and Li^(+)migration in order to avoid the formation of dendritic Li metal in practical fast-charging batteries.Finally,the regulation of Li metal plating with plane morphology,instead of dendritic structure,on the surface of graphite electrode under fast-charging condition is analyzed as a future direction to achieve higher energy density of batteries without safety concerns.
基金
the support by the National Natural Science Foundation of China(52072137 and 52272207)。
作者简介
contributed equally:Shiyu Liu received B.E.from Wuhan University of Technology in 2019 and is studying at Huazhong University of Science and Technology for his Ph.D.degree.His research interests focus on the development of fast-charging anode materials for lithium-ion batteries;contributed equally:Baoqi Gu received his B.S.from Huazhong University of Science and Technology in 2023 and is studying at Huazhong University of Science and Technology for his masterate.His research interests focus on the fast-charging materials for lithium-ion batteries;Zihe Chen received his M.S.from Hubei University in 2021 and is studying at Huazhong University of Science and Technology for his doctorate.His research interests focus on efficient recycling of spent lithium-ion batteries;Renming Zhan received his M.S.from Southwest University in 2019 and is studying at Huazhong University of Science and Technology for his doctorate.His research interests focus on the high safety and fast charging anode materials for lithium-ion batteries;Xiancheng Wang received B.E.from Hefei University of Technology in 2019 and is now studying at Huazhong University of Science and Technology for his Ph.D.degree.His research interests focus on the development of high-capacity anode materials for next generation lithium-ion batteries;Ruikang Feng received his B.S.from Shandong University in 2021 and is now studying at Huazhong University of Science and Technology for his doctorate.His research interests focus on the cathode material regeneration and fast-charging anode materials for lithium-ion batteries;Correspoding authors:Yongming Sun received his Ph.D.degree from Huazhong University of Science and Technology in 2012.He is currently a professor at Wuhan National Laboratory for Optoelectronics at Huazhong University of Science and Technology.His research focuses on materials for rechargeable Li-based batteries.E-mail addresses:yongmingsun@hust.edu.cn。
