Details

Autor(en) / Beteiligte

• Zhang, Sheng S.

Titel

Challenges and Strategies for Fast Charge of Li‐Ion Batteries

Ist Teil von

• ChemElectroChem, 2020-09, Vol.7 (17), p.3569-3577

Ort / Verlag

Weinheim: John Wiley & Sons, Inc

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• Long charging time for Li‐ion batteries is a critical obstacle for the widespread adoption of electric vehicles, especially when compared with the rapid refueling of traditional internal combustion engine vehicles. Fast charging results in accelerated performance degradation and low energy efficiency for Li‐ion batteries. The batteries adopted in the present electric vehicle market are mainly based on chemistry consisting of a graphite anode and a layered lithium transition‐metal oxide cathode. The fast‐charging capability of such batteries is limited by Li plating on the graphite anode and structural instability of the layered lithium transition‐metal oxide cathode. In this Minireview, the challenges and possible solutions to these fast charge problems are reviewed at both the materials and cell levels. Getting in the fast lane? Fast charging results in accelerated performance degradation and low energy efficiency, which is primarily attributed to Li plating on graphite anodes, structural instability of the layered cathode materials, and electrolyte depletion. Mechanisms and possible solutions to the fast charging problems of Li‐ion batteries are critically reviewed.