What is safety risk in lithium-ion batteries?

Herein, the safety risk is termed as the probability of the mechanical triggering of an internal short circuit, to reflect the safety related behaviors of lithium-ion batteries.

Are lithium-ion batteries safe?

Lithium-ion batteries (LIBs) with excellent performance are widely used in portable electronics and electric vehicles (EVs), but frequent fires and explosions limit their further and more widespread applications. This review summarizes aspects of LIB safety and discusses the related issues, strategies, and testing standards.

What factors affect the safety of on-board lithium ion batteries?

In this review, we analyzed the main causes of the safety risks of LIBs and examined the inherent electrochemical mechanisms of LIBs. We also summarized the main factors that affect the safety of on-board LIBs, including battery materials, design, abuse conditions, and battery status.

Why is thermal safety of lithium ion batteries important?

The thermal safety of LIBs is a hot but complex topic for battery research, development, and application. Improving the safety of LIBs is very important for their sustainable development. The safety standards play a critical role in promoting the safety of LIBs. The standards should be constantly revised and evolved with the development of LIBs.

How safe is a lithium battery anode material?

Therefore, the layered material and passivation film are the two cornerstones for the safety of the battery anode material. The adverse reaction between lithium and the electrolyte and the generation of lithium dendrites are the main safety risks.

Are solid-state batteries safe?

Researchers and engineers have proposed numerous methods to handle the safety issues of LIBs from the perspectives of intrinsic, passive, and active safety; among these methods, the development of solid-state batteries (SSBs) has great potential for covering all three types of safety strategies.