Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 10, Pages 5239-5247Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta11151k
Keywords
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Funding
- 1000 Talents Program of China
- Zhengzhou Materials Genome Institute
- National Natural Science Foundation of China [51001091, 111174256, 91233101, 51602094, 11274100, 51602290]
- Ministry of Science and Technology of China [2014CB931704]
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Even though ultra-fast Li+ ion conductors based on sulfides such as LGPS and Li6PS5Cl have been developed in recent years, rather limited advancement has been made towards developing all-solid-state lithium ion batteries due to serious interface-related problems. Here in this work, we have carried out extensive fundamental modelling to formulate a system of materials based on hali-chalcogenide Li6PA5Cl argyrodites ( A is the site for chalcogen species), so that materials with chemically and structurally compatible characteristics can be used as both a superb electrolyte and excellent buffer coatings over electrode surfaces. All solid-state-batteries ( ASSBs) in the form of Li| Li6PO4SCl| Li6PO5Cl| Li0.25MnO2 are thus recommended, so that buffer coatings based on O-rich hali-chalcogenides help avoid interfacial reactions, owing to their high stability with respect to the cathodes and greatly enhanced chemical potential with respect to Li/ Li+. Such batteries fundamentally have high mechanical and electrochemical stability, thus enabling high performance and great endurance to operational voltage.
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