Defect Chemistry in High-Voltage Cathode Materials for Lithium-Ion Batteries.

Autor: Mei Y; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.; College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China., Liu J; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA., Cui T; Henry M. Gunn High School, 780 Arastradero Road, Palo Alto, CA, 94306, USA., Li Y; College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China., Liu T; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA., Ji X; College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China., Amine K; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Oct 14, pp. e2411311. Date of Electronic Publication: 2024 Oct 14.
DOI: 10.1002/adma.202411311
Abstrakt: High-voltage cathodes (HVCs) have emerged as a paramount role for the next-generation high-energy-density lithium-ion batteries (LIBs). However, the pursuit of HVCs comes with inherent challenges related to defective structures, which significantly impact the electrochemical performance of LIBs. The current obstacle lies in the lack of a comprehensive understanding of defects and their precise effects. This perspective aims to provide insights into defect chemistry for governing HVCs. The classifications, formation mechanisms, and evolution of defects are outlined to explore the intricate relationship between defects and electrochemical behavior. The pressing need for cutting-edge characterization techniques that comprehensively investigate defects across various temporal and spatial scales is emphasized. Building on these fundamental understandings, engineering strategies such as composition tailoring, morphology design, interface modification, and structural control to mitigate or utilize defects are thoroughly discussed for enhanced HVCs performance. These insights are expected to provide vital guidelines for developing high-performance HVCs for next-generation high-energy lithium-ion batteries.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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