The Effects of Defects on Localized Plating in Lithium-Ion Batteries

By John Cannarella, C. Arnold. 2015

184 citations recorded by the source corpus.

This work investigates how local cell defects can induce local lithium deposition and dendrite growth in a lithium-ion cell that appears to otherwise be performing correctly. Using local pore closure in the battery separator as a model defect, we experimentally demonstrate the occurrence of local lithium deposition during cycling in coin cells containing deliberately manufactured local regions of separator pore closure. We further investigate the local plating phenomena observed in these experiments using an axisymmetric finite element model of the defect-containing coin cell geometry. Our simulations show that the pore closure acts as an “electrochemical concentrator,” creating locally high currents and overpotentials in the adjacent electrodes. This leads to lithium plating if the local overpotential exceeds equilibrium potential in the negative electrode. We examine the sensitivity of the local plating behavior to various materials, geometric, and operating parameters to identify mitigation strategies. The results of this work can be generalized to any defect that creates spatially non-uniform current distributions. © The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.1051507jes] All rights reserved.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/259290ec5ea96c23ce4c78ebc67797a67c8ec27a

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Citations in the corpus

Interplay of Lithium Intercalation and Plating on a Single Graphite Particle (2021, background): “The large concentration polarization can drop the potential below 0 V,(22) and the complete depletion of ions can trigger metal deposition in the form of dendrite growth, in which tip splitting growth moves the interface forward to chase the concentration profile.(23) This mechanism is termed as dif”
Lithium Plating Mechanism, Detection, and Mitigation in Lithium-Ion Batteries (2021, background): “For example, separator deformation (pore closure), which might occur during the cell manufacturing process or operation as a result of internal mechanical stress accumulation during charging or aging, could lead to lithium plating [74].”
Degradation mechanisms in Li‐ion batteries: a state‐of‐the‐art review (2017, background): “Lithium plating via corrosion with the electrolyte results directly in the capacity loss and may even contribute to the catastrophic failure through making an internal short [26,57].”
A Review on the Thermal Hazards of the Lithium-Ion Battery and the Corresponding Countermeasures (2019, background): “In addition, a low-quality separator will reduce the efficiency of Li+ passing through the separator and result in serious Li plating, which will further penetrate the separator and induce the internal short circuit [69].”