Issue 28, 2020

Structure and performance of the LiFePO4 cathode material: from the bulk to the surface

Abstract

Currently, LiFePO4 is one of the most successfully commercialized cathode materials in the rechargeable lithium-ion battery (LIB) system, owing to its excellent safety performance and remarkable electrochemical properties and is expected to have a broader market in the near future. Although it is widely recognized that the crystalline structure of a cathode material largely dictates its electrochemical properties (e.g. capacity, cycle life and rate capabilities), this intrinsic connection in LiFePO4 has not been systematically reviewed. Different from the previous reviews, which mainly focus on the improvement of electrochemical performance by all kinds of techniques, in this review, the relationship between its electrochemical performance and bulk/surface structure is reviewed and discussed. First, it is revealed that the intra-particle Li+ transfer is influenced by several properties of the bulk, including crystalline structures, antisite defects and electronic structures. Next, it is demonstrated that the surface/interfacial structures of LiFePO4, which can be reconstructed artificially or spontaneously, also have great impacts on the performances. Lastly, the intrinsic connection between the structure and performance is preliminarily established, showing brand-new perspectives on the strategy for further improvement and contributing to a comprehensive understanding of LiFePO4.

Graphical abstract: Structure and performance of the LiFePO4 cathode material: from the bulk to the surface

Article information

Article type
Minireview
Submitted
22 رمضان 1441
Accepted
02 ذو القعدة 1441
First published
02 ذو القعدة 1441

Nanoscale, 2020,12, 15036-15044

Structure and performance of the LiFePO4 cathode material: from the bulk to the surface

J. Hu, W. Huang, L. Yang and F. Pan, Nanoscale, 2020, 12, 15036 DOI: 10.1039/D0NR03776A

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