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Solid-state lithium metal batteries (ASSLMBs) have emerged as a promising energy storage solution, offering higher energy density and improved safety compared to conventional liquid electrolyte-based lithium-ion batteries.
However, the uncontrolled growth of lithium metal, particularly within the solid electrolyte, poses a significant challenge. One of the key factors influencing lithium deposition is the availability of free space — both at open surfaces and within internal cracks of the electrolyte. Understanding how this free space affects lithium growth behavior is crucial for designing more stable and efficient solid-state batteries.
A recent study explores this relationship, shedding light on the distinct lithium deposition mechanisms at open surfaces versus within internal defects. The findings provide insights into lithium infiltration, the role of pressure, and potential strategies to mitigate short circuits in ASSLMBs.
The Influence of Free Space on Lithium Growth
Lithium deposition in sulfide-based solid electrolytes follows two primary paths depending on the spatial constraints: open surfaces and internal cracks. Each environment presents distinct growth characteristics that impact the long-term stability of the battery.
