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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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Publication details

The article was received on 18 Feb 2015, accepted on 14 Apr 2015 and first published on 14 Apr 2015


Article type: Communication
DOI: 10.1039/C5TA01326G
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J. Mater. Chem. A, 2015,3, 10710-10714

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    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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