TY - GEN
T1 - NORMAL ELECTROLYTE FLOW HELPS IN CONTROLLING DENDRITE GROWTH IN ZINC METAL BATTERIES
AU - Parekh, Mihir
AU - Rahn, Christopher D.
N1 - Publisher Copyright:
Copyright © 2022 by ASME.
PY - 2022
Y1 - 2022
N2 - Zinc metal batteries are a widely considered alternative to lithium metal batteries that also suffer from dendrite growth. We explore the effect of creeping normal electrolyte flow on dendrite growth in zinc metal batteries using a transient model that predicts concentration distribution evolution and a linear stability analysis that predicts dendrite growth. Dendrite growth on zinc metal anodes can occur due to surface instabilities and/or concentration depletion. Creeping normal flow with a flow rate greater than the critical flow rate ensures stable plating and prevents ion depletion near the negative electrode, thus eliminating both causes of dendrite growth. Unlike lithium, increasing the flow rate does not necessarily reduce the electrostatic potential difference between the two electrodes, thus indicating the importance of ion diffusivity ratio in the electrolyte impedance.
AB - Zinc metal batteries are a widely considered alternative to lithium metal batteries that also suffer from dendrite growth. We explore the effect of creeping normal electrolyte flow on dendrite growth in zinc metal batteries using a transient model that predicts concentration distribution evolution and a linear stability analysis that predicts dendrite growth. Dendrite growth on zinc metal anodes can occur due to surface instabilities and/or concentration depletion. Creeping normal flow with a flow rate greater than the critical flow rate ensures stable plating and prevents ion depletion near the negative electrode, thus eliminating both causes of dendrite growth. Unlike lithium, increasing the flow rate does not necessarily reduce the electrostatic potential difference between the two electrodes, thus indicating the importance of ion diffusivity ratio in the electrolyte impedance.
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U2 - 10.1115/POWER2022-85501
DO - 10.1115/POWER2022-85501
M3 - Conference contribution
AN - SCOPUS:85144313939
T3 - American Society of Mechanical Engineers, Power Division (Publication) POWER
BT - Proceedings of the ASME 2022 Power Conference, Power 2022
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2022 Power Conference, Power 2022
Y2 - 18 July 2022 through 19 July 2022
ER -