Issue 1, 2021

High performance LiMnFePO4/Li4Ti5O12 full cells by functionalized polymeric additives

Abstract

Herein, we report a novel class of additives based on functional polymers for electrode fabrication. A small quantity of a 2,3-dimethoxybenzene (DMB)-based polymer was mixed with a state-of-the-art binder, poly(vinylene difluoride) (PVDF), to greatly improve the first fast charge–discharge and high-voltage LiMnFePO4/Li4Ti5O12 batteries operating at 3.0 V. Dual effects of the polymer were reported, i.e., trapping of soluble Mn2+ of positive electrodes and the in situ formation of a passivation layer on the negative electrode (AlF3). Both effects are possible because a functional polymer was used; this synergic effect enhances the cell performance by 16.7% after more than 300 cycles at 45 °C and 1C.

Graphical abstract: High performance LiMnFePO4/Li4Ti5O12 full cells by functionalized polymeric additives

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
04 sep 2020
Accepted
15 okt 2020
First published
15 okt 2020
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2021,2, 253-260

High performance LiMnFePO4/Li4Ti5O12 full cells by functionalized polymeric additives

J. Daigle, S. Rochon, Y. Asakawa, B. Fleutot, C. Mallet, K. Amouzegar and K. Zaghib, Mater. Adv., 2021, 2, 253 DOI: 10.1039/D0MA00679C

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