17 Mar 2021Ended

Electrolyte Flow Control to Reduce Dendrite and SEI Growth in Lithium Metal Batteries


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Mar 2021


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Dendrite growth in lithium metal batteries often leads to accelerated failure. SEI growth, breakage under excessive stress around dendrite tips, and .. Read more re-growth on freshly exposed Li-surfaces leads to rapid capacity deterioration. Till date, a tough, mechanically stable SEI has been thought of as a necessity to prevent further SEI growth and to suppress dendrites. In this presentation, we will demonstrate that electrolyte flow can possibly eliminate dendrite growth, and also reduce SEI growth significantly, thus increasing stability and coulombic efficiency. The required electrolyte flow rates are low enough to be practically achieved by microfluidic pumping techniques. This webinar will focus on the following key topics: • Creeping normal electrolyte flow can eliminate dendrite growth • Creeping normal electrolyte flow increases the columbic efficiency and reduces SEI growth • Creeping parallel electrolyte flow significantly reduces dendrite growth • A mechanically stable tough SEI layer is not a necessity for stable dendrite free electroplating • Required flow rates may be achieved practically

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