期刊
ADVANCED ENERGY MATERIALS
卷 12, 期 35, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202201425
关键词
chemo-mechanics; electrochemical energy storage; lithium-ion batteries; microstructures; NCM; particle sizes; thiophosphates
类别
资金
- BMBF cluster of competence for solid state batteries (FestBatt, Bundesministerium fur Bildung und Forschung) [03XP0177A/03XP0430A, 03XP0433A, 03XP0180/03XP0431]
- Fond der Chemischen Industrie (FCI)
- Projekt DEAL
Solid-state batteries are gaining attention as a potentially safe electrochemical high-energy storage concept. However, there are still challenges in designing cathode active materials that are compatible with superionic solid electrolytes. This perspective provides an overview of the required properties and challenges of inorganic cathode active materials used in solid-state batteries, and proposes guidelines for future development.
Solid-state batteries (SSBs) currently attract great attention as a potentially safe electrochemical high-energy storage concept. However, several issues still prevent SSBs from outperforming today's lithium-ion batteries based on liquid electrolytes. One major challenge is related to the design of cathode active materials (CAMs) that are compatible with the superionic solid electrolytes (SEs) of interest. This perspective, gives a brief overview of the required properties and possible challenges for inorganic CAMs employed in SSBs, and describes state-of-the art solutions. In particular, the issue of tailoring CAMs is structured into challenges arising on the cathode-, particle-, and interface-level, related to microstructural, (chemo-)mechanical, and (electro-)chemical interplay of CAMs with SEs, and finally guidelines for future CAM development for SSBs are proposed.
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