A lithium superionic conductor for millimeter-thick battery electrode.
Science
; 381(6653): 50-53, 2023 Jul 07.
Article
em En
| MEDLINE
| ID: mdl-37410839
ABSTRACT
No design rules have yet been established for producing solid electrolytes with a lithium-ion conductivity high enough to replace liquid electrolytes and expand the performance and battery configuration limits of current lithium ion batteries. Taking advantage of the properties of high-entropy materials, we have designed a highly ion-conductive solid electrolyte by increasing the compositional complexity of a known lithium superionic conductor to eliminate ion migration barriers while maintaining the structural framework for superionic conduction. The synthesized phase with a compositional complexity showed an improved ion conductivity. We showed that the highly conductive solid electrolyte enables charge and discharge of a thick lithium-ion battery cathode at room temperature and thus has potential to change conventional battery configurations.
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MEDLINE
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En
Ano de publicação:
2023
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Article