Lithium battery load bearing

Are lithium-ion batteries safe under mechanical loads?

In challenging operational environments, Lithium-ion batteries (LIBs) inevitably experience mechanical stresses, including impacts and extrusion, which can lead to battery damage, failure, and even the occurrence of fire and explosion incidents. Consequently, it is imperative to investigate the safety performance of LIBs under mechanical loads.

What are the mechanical properties of lithium-ion batteries?

The mechanical properties of lithium-ion batteries have been measured under various loading conditions, such as in-plane and out-of-plane compressions [ 6, 12, 18 ], punch indentation [ 19, 20 ], nail penetration [ 7, 21 ], bending [ 22, 23 ], tension [ 18 ], and impact events [ 19 ].

Are energy storage composite structures incorporating lithium-ion batteries safe?

Sensitivity of the mechanical behaviors and electrical failure to battery arrangement were discussed as well as the structure design on energy absorption capacity. These results hold significant potential for the safety and lightweight design of energy storage composite structures incorporating lithium-ion batteries. 1. Introduction

Why do lithium-ion batteries have a high energy absorption capacity?

The integrated structure absorbs more energy at higher incident energies and undergoes greater deformation, leading to more severe soft circuit and electrical failures. The integration of lithium-ion battery with composite laminate increased the energy absorption capacity by 57 %, attributed to its high deformability.

What is the specific energy of lithium ion batteries?

The specific energy is lower thanstate-of-the-art lithium-ion batteries with a specificenergy of ;150 Wh kg21(Tarascon and Armand,2001; Thackeray et al., 2012), but may be enhanced bydecreasing the weight of inactive materials. For exam-ple, the thickness of current collectors may be reduced(i.e. Cu foil from 18 to 9mm and Al foil from 20 to 15mm).

Where are lithium-ion batteries embedded?

As has been mentioned in the Introduction, the lithium-ion batteries are typically embedded in either the composite laminates or the sandwich composites.