Damage of prismatic lithium‐ion cells subject to bending: Test, model, and detection

• Published in: EcoMat (Beijing, China) Vol. 4; no. 6
• Main Authors: Li, Wei, Xing, Bobin, Watkins, Thomas R., Xia, Yong, Wang, Hsin, Zhu, Juner
• Format: Journal Article
• Language: English
• Published: Hoboken, USA John Wiley & Sons, Inc 01.11.2022; Wiley Blackwell (John Wiley & Sons); Wiley
• Subjects: Bend tests; Charge transfer; Compression; Computed tomography; Cracking (fracturing); Damage; Deformation; Electrochemical impedance spectroscopy; Electrochemistry; Electrodes; ENERGY STORAGE; Failure mechanisms; finite element model; Hardness tests; impedance behavior; Indentation; internal short circuit; Life span; Lithium; Lithium-ion batteries; lithium-ion battery; Load; Mechanical properties; Model testing; Research methodology; Safety; Safety engineering; Short circuits; Spectroscopy; Spectrum analysis; three-point bending; Unloading; X-ray computed tomography

The mechanically induced internal short circuit (ISC) is one of the major safety concerns of lithium‐ion batteries. Mechanical abuse tests are often performed to evaluate the integrity and safety of lithium‐ion batteries under mechanical loadings. Except for the widely explored compression‐dominated...