A facile strategy for preparing P-doped biomass-derived mesoporous carbon for inhibition of hydrogen evolution reaction and enhancing the cycle performance of lead–carbon batteries under high rate partial state of charge duty

As a more reliable form of energy storage than lead-acid battery, lead–carbon battery plays a key role in the field of electric vehicles and energy storage systems, but it still faces some problems in the application process. To prolong the cycle life of lead–carbon batteries under high rate partial state of charge (HRPSoC) duty and focus on solving the problem of hydrogen evolution reaction (HER) of batteries, a facile strategy using phosphoric acid as activator for preparing P-doped biomass-derived mesoporous carbon was proposed. Compared with commercial activated carbon (AC) and carbon material obtained under other preparation conditions, the P-RHMC-2 using material ratio with 1:2 as well as activated at 550 ℃ has the highest mesoporous rate and excellent P-doping effect. In the electrochemical test, P-RHMC-2 inhibits HER dramatically and improves the cycle life of lead–carbon battery significantly under HRPSoC duty when it applied to the negative electrode of the batteries.