What is the evolution of thermal runaway of lithium-ion batteries under overcharge?

To clarify the evolution of thermal runaway of lithium-ion batteries under overcharge, the prismatic lithium-ion batteries are overcharged at various current rates in air and argon. The whole process with the charge rate higher than 0.1C in air includes three parts, which are expansion, rupture and combustion processes, respectively.

Does cathode aluminum current collector corrosion a lithium-ion battery?

In this review, the corrosion failure behavior of the cathode aluminum current collector in lithium-ion batteries with organic electrolytes is comprehensively analyzed, and the corresponding protective strategies are systematically summarized. 1. Introduction Energy is a pivotal driver for advancing social and economic progress.

Are lithium ion batteries overcharged?

Three element factors of lithium ion battery combustion under overcharge were clarified. The location of the ignition point at a charge rate of 2C was determined. To clarify the evolution of thermal runaway of lithium-ion batteries under overcharge, the prismatic lithium-ion batteries are overcharged at various current rates in air and argon.

How to improve overcharge performance of lithium-ion batteries?

Rupture of the pouch and separator melting are the two key factors for the initiation of TR during overcharge process. Therefore, proper pressure relief design and thermal stable separator should be developed to improve the overcharge performance of lithium-ion batteries.

Does restraining plate improve overcharge performance of lithium-ion battery?

The restraining plate combined with pressure relief design has a positive effect on improving the overcharge performance of lithium-ion battery, as the battery with configuration C exhibits the best overcharge performance under adiabatic condition with the SOC TR rising from 1.670 to 1.738 and the TTR from 113.1 °C to 140.9 °C.

Are corrosion and anodic dissolution of aluminium current collectors in lithium-ion batteries a problem?

Conclusions and outlook Corrosion and anodic dissolution of aluminium current collectors in lithium-ion batteries are ongoing issues for researchers, manufacturers, and consumers. The inevitable adverse consequences of these phenomena are shortening of battery lifetime, reduction of the capacity and power, and accelerated self-discharge.