Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode

Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode

Highlights A novel electrolyte design strategy for high voltage and high safe LiCoO2 (LCO) cathode based on highest occupied molecular orbital and LCO absorption energy descriptor was proposed. The irreversible phase transformation was restricted by the LiF rich LCO/electrolyte interface. The well d...

Full description

Saved in:
Bibliographic Details
Main Authors: Long Chen, Xin He, Yiqing Chen, Youmin Hou, Yujie Zhang, Kangli Wang, Xinping Ai, Yuliang Cao, Zhongxue Chen
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Nano-Micro Letters
Subjects:
Electrolyte design
LiF-rich interface
Wide-temperature
High-safe 
4.6 V LCO
Online Access:https://doi.org/10.1007/s40820-025-01694-4
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Highlights A novel electrolyte design strategy for high voltage and high safe LiCoO2 (LCO) cathode based on highest occupied molecular orbital and LCO absorption energy descriptor was proposed. The irreversible phase transformation was restricted by the LiF rich LCO/electrolyte interface. The well designed tris 2, 2, 2-trifluoroethyl phosphate electrolyte endows Ah grade Gr||LCO pouch cell with excellent electrochemical performance (85.3% capacity retention after 700 cycles), low-temperature adaptability (−60 °C retention: 53%) and greatly improved thermal safety (pass nail penetration).
ISSN:2311-6706
2150-5551

Similar Items