Effective Suppression of Irreversible Li Metal Deposits at High Charging Rates or Low Temperatures Influenced by SEI Properties in Lithium Ion Batteries

摘要

Lithium ion batteries (LIB) are a key technology for portable electronic and the most promising energy source to power electrical vehicles (EV). However, the current LIBs show major drawbacks for the automotive application with regards to the energy density and fast charging ability. Taken together, these two limitations creating the so-called 'range anxiety' for EV users, which is a reason for the slow adaption in mass market. With future perspective to charge EVs with up to 350 kW [1], the limitations for fast charging must be addressed.