Safety issues and mechanisms of lithium-ion battery cell upon mechanical abusive loading: A review

A review of safety-focused mechanical modeling of commercial lithium-ion batteries

The imaging of failure in structural materials by synchrotron radiation X-ray microtomography

Constitutive behavior and progressive mechanical failure of electrodes in lithium-ion batteries

A review on battery management system from the modeling efforts to its multiapplication and integration

Crash analysis of a conceptual electric vehicle with a damage tolerant battery pack

We present a dynamic strain field mapping method based on synchrotron X-ray digital image correlation (XDIC). Synchrotron X-ray sources are advantageous for imaging with exceptional spatial and temporal resolutions, and X-ray speckles can be produced either from surface roughness or internal inhomogeneities. Combining speckled X-ray imaging with DIC allows one to map strain fields with high resolutions. Based on experiments on void growth in Al and deformation of a granular material during Kolsky bar/gas gun loading at the Advanced Photon Source beamline 32ID, we demonstrate the feasibility of dynamic XDIC. XDIC is particularly useful for dynamic, in-volume, measurements on opaque materials under high strain-rate, large, deformation.

Note: Dynamic strain field mapping with synchrotron X-ray digital image correlation.

Mechanical behaviors of auxetic polyurethane foam at quasi-static, intermediate and high strain rates

The state-of-charge and deformation-rate dependent mechanical behavior of cylindrical lithium-ion battery cells was investigated. The research revealed that both state of charge and deformation rates affected the stiffness of the battery cells. Battery mechanical failure load was only weakly dependent on the state of charge. For the deformation-rate dependency on the mechanical integrity of battery cells, the battery mechanical failure load was either decreased significantly at high state of charge or decreased slightly at low state of charge as deformation rate increased. For the correlation between mechanical integrity and electrical failure, the displacement at the battery mechanical failure load coincided with a voltage drop. However, at high state of charge, premature and incomplete voltage drops were observed before the definite final voltage drop. No such premature voltage drop was observed in low state-of-charge specimens. The results of this research may be used as a reference for the design of impact and damage tolerant electric vehicle battery systems.

State-of-Charge and Deformation-Rate Dependent Mechanical Behavior of Electrochemical Cells

Bi-objective optimal design of a damage-tolerant multifunctional battery system

Hangjie Liao

Papers

Crash analysis of a conceptual electric vehicle with a damage tolerant battery pack

Note: Dynamic strain field mapping with synchrotron X-ray digital image correlation.

Mechanical behaviors of auxetic polyurethane foam at quasi-static, intermediate and high strain rates

State-of-Charge and Deformation-Rate Dependent Mechanical Behavior of Electrochemical Cells

Bi-objective optimal design of a damage-tolerant multifunctional battery system