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Issue 20, 2015
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An organophosphine oxide redox shuttle additive that delivers long-term overcharge protection for 4 V lithium-ion batteries

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Abstract

Redox shuttle additives are used to protect Li-ion batteries from overcharge. Increased operating voltage requires striking a balance between a high redox potential and electrochemical stability. 1,4-Bis[bis(1-methylethyl)phosphinyl]-2,5-dimethoxybenzene (BPDB) exhibits a redox potential of 4.5 V vs. Li/Li+ and provides stable overcharge protection for 4 V cells delivering 95 cycles of 100% overcharge ratio.

Graphical abstract: An organophosphine oxide redox shuttle additive that delivers long-term overcharge protection for 4 V lithium-ion batteries

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Article information


Submitted
18 Feb 2015
Accepted
14 Apr 2015
First published
14 Apr 2015

J. Mater. Chem. A, 2015,3, 10710-10714
Article type
Communication
Author version available

An organophosphine oxide redox shuttle additive that delivers long-term overcharge protection for 4 V lithium-ion batteries

J. Huang, N. Azimi, L. Cheng, I. A. Shkrob, Z. Xue, J. Zhang, N. L. Dietz Rago, L. A. Curtiss, K. Amine, Z. Zhang and L. Zhang, J. Mater. Chem. A, 2015, 3, 10710
DOI: 10.1039/C5TA01326G

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