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@article{O'Kane:2020:1945-7111/ab90ac,
author = {O'Kane, SEJ and Campbell, ID and Marzook, MWJ and Offer, GJ and Marinescu, M},
doi = {1945-7111/ab90ac},
journal = {Journal of The Electrochemical Society},
pages = {1--11},
title = {Physical origin of the differential voltage minimum associated with lithium plating in Li-Ion batteries},
url = {http://dx.doi.org/10.1149/1945-7111/ab90ac},
volume = {167},
year = {2020}
}

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TY  - JOUR
AB  - The main barrier to fast charging of Li-ion batteries at low temperatures is the risk of short-circuiting due to lithium plating. In-situ detection of Li plating is highly sought after in order to develop fast charging strategies that avoid plating. It is widely believed that Li plating after a single fast charge can be detected and quantified by using a minimum in the differential voltage (DV) signal during the subsequent discharge, which indicates how much lithium has been stripped. In this work, a pseudo-2D physics-based model is used to investigate the effect on Li plating and stripping of concentration-dependent diffusion coefficients in the active electrode materials. A new modelling protocol is also proposed, in order to distinguish the effects of fast charging, slow charging and Li plating/stripping. The model predicts that the DV minimum associated with Li stripping is in fact a shifted and more abrupt version of a minimum caused by the stage II-stage III transition in the graphite negative electrode. Therefore, the minimum cannot be used to quantify stripping. Using concentration-dependent diffusion coefficients yields qualitatively different results to previous work. This knowledge casts doubt on the utility of DV analysis for detecting Li plating.
AU  - O'Kane,SEJ
AU  - Campbell,ID
AU  - Marzook,MWJ
AU  - Offer,GJ
AU  - Marinescu,M
DO  - 1945-7111/ab90ac
EP  - 11
PY  - 2020///
SN  - 0013-4651
SP  - 1
TI  - Physical origin of the differential voltage minimum associated with lithium plating in Li-Ion batteries
T2  - Journal of The Electrochemical Society
UR  - http://dx.doi.org/10.1149/1945-7111/ab90ac
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000534571700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://iopscience.iop.org/article/10.1149/1945-7111/ab90ac
UR  - http://hdl.handle.net/10044/1/80952
VL  - 167
ER  -

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