Solid-State Batteries Based on Organic Cathode Materials
BATTERIES & SUPERCAPS(2023)
Abstract
Organic cathode materials (OCMs) possess high resource sustainability, large structural diversity, high theoretical energy density, and potentially low cost, however, suffer from the dissolution problem in liquid non-aqueous electrolyte. Solid-state batteries (SSBs) are regarded as the final solution of Li and Na metal batteries because of the intrinsic safety, but hindered by many challenges including the poor contact with rigid inorganic cathode materials. Therefore, applying OCMs in SSBs is probably a win-win strategy to compensate for their respective deficiency. In this review, some fundamental knowledge of OCMs and SSBs are briefly introduced at first, with emphasis on different types of solid-state electrolytes (SSEs). Then the reported works on OCM-based SSBs are summarized by classifying them into non-ceramic, semi-ceramic, and all-ceramic ones. Finally, we conclude our understandings on the main scientific issues and possible solutions. To sum up, the combination of OCMs and SSBs brings about many new challenges but also opportunities towards their practical application.
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Key words
lithium batteries,organic cathode materials,sodium batteries,solid-state batteries,solid-state electrolytes,sulfide electrolytes
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