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.
Original language | English |
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Pages (from-to) | 10710-10714 |
Number of pages | 5 |
Journal | Journal of Materials Chemistry A |
Volume | 3 |
Issue number | 20 |
DOIs | |
State | Published - May 28 2015 |
Externally published | Yes |