Issue 2, 2024

Design of functional binders for high-specific-energy lithium-ion batteries: from molecular structure to electrode properties

Abstract

The binder adheres to each component of the electrode to maintain the structural integrity and plays an irreplaceable role in a battery despite its low content. Polyvinylidene difluoride (PVDF), as the dominant binder in commercial battery systems (for cathodes), has acceptably balanced properties between chemical/electrochemical stability and adhesive ability. However, in the pursuit of high-specific-energy batteries featuring high mass loading, high voltage, and large volume changes, the PVDF binder is unable to satisfy the versatile electrode demands and extreme operation conditions. Therefore, developing novel binders with task-specific functionality is of urgent need. Herein, we review the recently developed design strategies of functional binders from the insight of molecular design. The functions and failure mechanisms of the binders are elucidated first. Starting from the basic moiety (functional group) of the polymer molecule, how the constituents, molecular structure, and assembly into a supramolecule will affect the properties of the binders, and furthermore the performance of the electrodes, is discussed at length. Finally, we summarize and provide a future outlook on the opportunities and challenges of functional binders towards future high-specific-energy lithium-ion batteries.

Keywords: Functional binders; Molecular design; High-specific-energy electrodes; Lithium-ion batteries.

Graphical abstract: Design of functional binders for high-specific-energy lithium-ion batteries: from molecular structure to electrode properties

Transparent peer review

To support increased transparency, we offer authors the option to publish the peer review history alongside their article.

View this article’s peer review history

Article information

Article type
Review Article
Submitted
16 আগ. 2023
Accepted
28 সেপ্টে. 2023
First published
29 সেপ্টে. 2023
This article is Open Access
Creative Commons BY-NC license

Ind. Chem. Mater., 2024,2, 191-225

Design of functional binders for high-specific-energy lithium-ion batteries: from molecular structure to electrode properties

T. Qin, H. Yang, Q. Li, X. Yu and H. Li, Ind. Chem. Mater., 2024, 2, 191 DOI: 10.1039/D3IM00089C

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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