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Issue 14, 2015
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1,4-Bis(trimethylsilyl)-2,5-dimethoxybenzene: a novel redox shuttle additive for overcharge protection in lithium-ion batteries that doubles as a mechanistic chemical probe

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Abstract

A novel redox shuttle additive, 1,4-bis(trimethylsilyl)-2,5-dimethoxybenzene (BTMSDB), is shown to deliver superb overcharge protection of LiFePO4 electrode in Li-ion batteries. Using this molecule as a chemical probe, we trace the cause of the eventual failure of this additive to the gradual loss of steric protection in the corresponding radical cation, providing the much needed mechanistic insight in the factors controlling the long-term efficiency of overcharge protection.

Graphical abstract: 1,4-Bis(trimethylsilyl)-2,5-dimethoxybenzene: a novel redox shuttle additive for overcharge protection in lithium-ion batteries that doubles as a mechanistic chemical probe

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Supplementary files

Article information


Submitted
03 Feb 2015
Accepted
25 Feb 2015
First published
25 Feb 2015

J. Mater. Chem. A, 2015,3, 7332-7337
Article type
Paper
Author version available

1,4-Bis(trimethylsilyl)-2,5-dimethoxybenzene: a novel redox shuttle additive for overcharge protection in lithium-ion batteries that doubles as a mechanistic chemical probe

J. Huang, I. A. Shkrob, P. Wang, L. Cheng, B. Pan, M. He, C. Liao, Z. Zhang, L. A. Curtiss and L. Zhang, J. Mater. Chem. A, 2015, 3, 7332
DOI: 10.1039/C5TA00899A

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