Journal
INFOMAT
Volume 5, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/inf2.12401
Keywords
characterization; monitoring; simulation; solid-state batteries; thermal technique
Categories
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Solid-state lithium batteries (SSLBs) are seen as a promising candidate for the next generation lithium-ion batteries (LIBs) due to their high energy density, long duration, and high safety. However, thermal degradation and thermal runaway can still occur in SSLBs, and more research is needed to address these issues.
Solid-state lithium batteries (SSLBs) have been broadly accepted as a promising candidate for the next generation lithium-ion batteries (LIBs) with high energy density, long duration, and high safety. The intrinsic non-flammable nature and electrochemical/thermal/mechanical stability of solid electrolytes are expected to fundamentally solve the safety problems of conventional LIBs. However, thermal degradation and thermal runaway could also happen in SSLBs. For example, the large interfacial resistance between solid electrolytes and electrodes could aggravate the joule heat generation; the anisotropic thermal diffusion could trigger the uneven temperature distribution and formation of hotspots further leading to lithium dendrite growth. Considerable research efforts have been devoted to exploring solid electrolytes with outstanding performance and harmonizing interfacial incompatibility in the past decades. There have been fewer comprehensive reports investigating the thermal reaction process, thermal degradation, and thermal runaway of SSLBs. This review seeks to highlight advanced thermal-related analysis techniques for SSLBs, by focusing particularly on multiscale and multidimensional thermal-related characterization, thermal monitoring techniques such as sensors, thermal experimental techniques imitating the abuse operating condition, and thermal-related advanced simulations. Insightful perspectives are proposed to bridge fundamental studies to technological relevance for better understanding and performance optimization of SSLBs.
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