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4-Bromoanisole
CAS number: 104-92-7
4-bromoanisole is a monomethoxybenzene carrying a bromo substituent at position 4. It is a monomethoxybenzene and an organobromine compound.

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Related Questions and Answers

A: The use of 4-Bromoanisole (4BA) as a safety electrolyte additive can delay the time for the voltage to rise to the overcharge state (5 V) from approximately 16 hours to about 37-42 hours, depending on the concentration of 4BA (specifically 39.1 h for 1 wt.%, 42.6 h for 2 wt.%, and 37.2 h for 3 wt.%).
A: 4-Bromoanisole (4BA) can be effectively electropolymerized at 4.45 V (vs. Li/Li+ ), which consumes the overcharge current and protects the working electrode from voltage runaway. This electropolymerized film also blocks the insertion of Li-ions into the NCM 622 electrode, deactivating its surface for lithium insertion reactions at potentials above 4.2 V.
A: 4-Bromoanisole (4BA) is recommended as a safety electrolyte additive for LiNi 0.6Co2Mn0.2 O2 (NCM 622) cathode materials in lithium-ion batteries.