White carbon black: the "multifunctional guardian" of new energy batteries
In the field of lithium-ion batteries, white carbon black is transitioning from traditional separator coating materials to multifunctional additives. Gas phase white carbon black forms a hydrogen bond network with polyvinylidene fluoride (PVDF) through surface hydroxyl groups, which can reduce the thermal shrinkage rate of the separator from 50% to below 5%, while improving electrolyte wettability and extending battery cycle life. For example, in solid-state batteries, white carbon black based composite materials can increase the hydrogen absorption/release rate of metal hydrides by 30% by regulating the pore structure (specific surface area>1000m ²/g), making the commercial application of hydrogen fuel cell vehicles possible.


More cutting-edge research has combined white carbon black with aluminum oxide to prepare ceramic coated separators with both thermal conductivity and insulation properties, increasing the pass rate of battery needle puncture experiments from 60% to 98%. In lithium-ion battery positive electrode materials, white carbon black serves as a conductive agent carrier, which can enhance the conductivity of silicon-based negative electrodes, solve the problem of conductive network damage caused by volume expansion, and increase battery capacity by 15% -20%.