Unlocking Charge Transfer Limitations for Extreme Fast Charging of Li‐Ion Batteries

Autor:	Yu‐Xing Yao, Xiang Chen, Nan Yao, Jin‐Hui Gao, Gang Xu, Jun‐Fan Ding, Chun‐Liang Song, Wen‐Long Cai, Chong Yan, Qiang Zhang
Rok vydání:	2022
Předmět:	General Chemistry General Medicine Catalysis
Zdroj:	Angewandte Chemie. 135
ISSN:	1521-3757 0044-8249
DOI:	10.1002/ange.202214828
Popis:	Extreme fast charging (XFC) of high-energy Li-ion batteries is a key enabler of electrified transportation. While previous studies mainly focused on improving Li ion mass transport in electrodes and electrolytes, the limitations of charge transfer across electrode-electrolyte interfaces remain underexplored. Herein we unravel how charge transfer kinetics dictates the fast rechargeability of Li-ion cells. Li ion transfer across the cathode-electrolyte interface is found to be rate-limiting during XFC, but the charge transfer energy barrier at both the cathode and anode have to be reduced simultaneously to prevent Li plating, which is achieved through electrolyte engineering. By unlocking charge transfer limitations, 184 Wh kg
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f076135863bfbcf6b60400247931756 https://doi.org/10.1002/ange.202214828 Zobrazit plný text záznamu