Kinetic Limits of Graphite Anode for Fast-Charging Lithium-Ion Batteries.

ABSTRACT: Fast-charging lithium-ion batteries are highly required, especially in reducing the mileage anxiety of the widespread electric vehicles. One of the biggest bottlenecks lies in the sluggish kinetics of the Li⁺ intercalation into the graphite anode; slow intercalation will lead to lithium metal plating, severe side reactions, and safety concerns. The premise to solve these problems is to fully understand the reaction pathways and rate-determining steps of graphite during fast Li⁺ intercalation. Herein, we compare the Li⁺ diffusion through the graphite particle, interface, and electrode, uncover the structure of the lithiated graphite at high current densities, and correlate them with the reaction kinetics and electrochemical performances. It is found that the

SUBMITTER: Weng S 

PROVIDER: S-EPMC10516836 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature