Issue 15, 2016
From the journal:

Journal of Materials Chemistry A

Overcharge protection of lithium-ion batteries above 4 V with a perfluorinated phenothiazine derivative†

Aman Preet Kaur,a   Matthew D. Casselman,a   Corrine F. Elliott,a   Sean R. Parkin,a   Chad Riskoab  and  Susan A. Odom*a  

* Corresponding authors

a Department of Chemistry, University of Kentucky, Lexington, KY, USA 40506
E-mail: susan.odom@uky.edu
Fax: +1 859 323 9985
Tel: +1 859 257 3294

b Center for Applied Energy Research, University of Kentucky, Lexington, KY, USA 40511

Abstract

Electron-withdrawing substituents are introduced onto the phenothiazine core to raise its oxidation potential for use as a redox shuttle in high-voltage lithium-ion batteries. A perfluorinated derivative oxidizes at 4.3 V vs. Li+/0, and functions for ca. 500 h of 100% overcharge in LiNi0.8Co0.15Al0.05O2/graphite coin cells at a charging rate of C/10.

Graphical abstract: Overcharge protection of lithium-ion batteries above 4 V with a perfluorinated phenothiazine derivative

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Article information

DOI
https://doi.org/10.1039/C5TA10375D
Article type
Communication
Submitted
17 Dec 2015
Accepted
10 Mar 2016
First published
10 Mar 2016

J. Mater. Chem. A, 2016,4, 5410-5414

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Overcharge protection of lithium-ion batteries above 4 V with a perfluorinated phenothiazine derivative

A. P. Kaur, M. D. Casselman, C. F. Elliott, S. R. Parkin, C. Risko and S. A. Odom, J. Mater. Chem. A, 2016, 4, 5410 DOI: 10.1039/C5TA10375D

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