Issue 11, 2023

Origin and characterization of the oxygen loss phenomenon in the layered oxide cathodes of Li-ion batteries

Abstract

Li-ion batteries have been widely applied in the field of energy storage due to their high energy density and environment friendliness. Owing to their high capacity of ∼200 mA h g−1 and high cutoff voltage of ∼4.6 V vs. Li+/Li, layered lithium transition metal oxides (LLMOs) stand out among the numerous cathode materials. However, the oxygen loss of LLMO cathodes during cycling hampers the further development LLMO cathode-based Li-ion batteries by inducing a dramatic decay of electrochemical performance and safety issues. In this regard, the oxygen loss phenomenon of LLMO cathodes has attracted attention, and extensive efforts have been devoted to investigating the origins of oxygen loss in LLMO cathodes by various characterization methods. In this review, a comprehensive overview of the main causes of oxygen loss is presented, including the state of charge, side reactions with electrolytes, and the thermal instability of LLMO cathodes. The characterization methods used in the scope are introduced and summarized based on their functional principles. It is hoped that the review can inspire a deeper consideration of the utilization of characterization techniques in detecting the oxygen loss of LLMO cathodes, paving a new pathway for developing advanced LLMO cathodes with better cycling stability and practical capabilities.

Graphical abstract: Origin and characterization of the oxygen loss phenomenon in the layered oxide cathodes of Li-ion batteries

Supplementary files

Article information

Article type
Review Article
Submitted
23 5 2023
Accepted
02 8 2023
First published
04 8 2023

Mater. Horiz., 2023,10, 4686-4709

Origin and characterization of the oxygen loss phenomenon in the layered oxide cathodes of Li-ion batteries

J. Feng, Z. Chen, W. Zhou and Z. Hao, Mater. Horiz., 2023, 10, 4686 DOI: 10.1039/D3MH00780D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements