TY  - JOUR
PB  - The Royal Society of Chemistry
N2  - Catastrophic failure of lithium-ion batteries occurs across multiple length scales and over very short time periods. A combination of high-speed operando tomography, thermal imaging and electrochemical measurements is used to probe the degradation mechanisms leading up to overcharge-induced thermal runaway of a LiCoO2 pouch cell, through its interrelated dynamic structural, thermal and electrical responses. Failure mechanisms across multiple length scales are explored using a post-mortem multi-scale tomography approach, revealing significant morphological and phase changes in the LiCoO2 electrode microstructure and location dependent degradation. This combined operando and multi-scale X-ray computed tomography (CT) technique is demonstrated as a comprehensive approach to understanding battery degradation and failure.
ID  - discovery1514067
AV  - public
Y1  - 2016/12/07/
EP  - 30919
TI  - Investigating lithium-ion battery materials during overcharge-induced thermal runaway: an operando and multi-scale X-ray CT study
UR  - http://dx.doi.org/10.1039/C6CP04251A
SN  - 1463-9076
A1  - Finegan, DP
A1  - Scheel, M
A1  - Robinson, JB
A1  - Tjaden, B
A1  - Di Michiel, M
A1  - Hinds, G
A1  - Brett, DJL
A1  - Shearing, PR
JF  - Physical Chemistry Chemical Physics
VL  - 18
SP  - 30912
IS  - 45
N1  - This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (http://creativecommons.org/licenses/by/3.0/).
ER  -