TY - JOUR
T1 - The role of structural defects in commercial lithium-ion batteries
AU - Qian, Guannan
AU - Monaco, Federico
AU - Meng, Dechao
AU - Lee, Sang-Jun
AU - Zan, Guibin
AU - Li, Jizhou
AU - Karpov, Dmitry
AU - Gul, Sheraz
AU - Vine, David
AU - Stripe, Benjamin
AU - Zhang, Jin
AU - Lee, Jun-Sik
AU - Ma, Zi-Feng
AU - Yun, Wenbin
AU - Pianetta, Piero
AU - Yu, Xiqian
AU - Li, Linsen
AU - Cloeten, Peter
AU - Liu, Yijin
PY - 2021/9/22
Y1 - 2021/9/22
N2 - The manufacturing of commercial lithium-ion batteries (LIBs) involves a number of sophisticated production processes. Various cell defects can be induced, and, depending on their structural and chemical characteristics, they could lead to acute failure and/or chronic degradation. Although tremendous efforts have been devoted to develop a robust quality control (QC) procedure, the functional role of the cell defects is not well understood. Here, we address this question through a systematic experimental study of commercial 18650-type LIBs that have failed the QC inspection due to a self-discharging effect. We identify and recover the defective regions from the cell and conduct a comprehensive investigation from the chemical, structural, and morphological perspectives. Our results reveal how the structural defects affect the cell performance, which is highly important to industry-scale battery production.
AB - The manufacturing of commercial lithium-ion batteries (LIBs) involves a number of sophisticated production processes. Various cell defects can be induced, and, depending on their structural and chemical characteristics, they could lead to acute failure and/or chronic degradation. Although tremendous efforts have been devoted to develop a robust quality control (QC) procedure, the functional role of the cell defects is not well understood. Here, we address this question through a systematic experimental study of commercial 18650-type LIBs that have failed the QC inspection due to a self-discharging effect. We identify and recover the defective regions from the cell and conduct a comprehensive investigation from the chemical, structural, and morphological perspectives. Our results reveal how the structural defects affect the cell performance, which is highly important to industry-scale battery production.
KW - commercial battery
KW - defects
KW - failure analysis
KW - synchrotron
KW - X-ray imaging
KW - Data Science
UR - http://www.scopus.com/inward/record.url?scp=85119003709&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85119003709&origin=recordpage
U2 - 10.1016/j.xcrp.2021.100554
DO - 10.1016/j.xcrp.2021.100554
M3 - RGC 21 - Publication in refereed journal
SN - 2666-3864
VL - 2
JO - Cell Reports Physical Science
JF - Cell Reports Physical Science
IS - 9
M1 - 100554
ER -
