This acetylene black (Kappa 100) is developed as a high-purity conductive additive for energy storage and electrochemical research, offering a primary particle size of approximately 35 nm and a purity of 99.9%. Its fine nanoscale structure supports efficient electron transport and uniform dispersion in electrode formulations, making it suitable for use in lithium-ion batteries, supercapacitors, and other advanced energy materials where consistent conductivity is critical. Typically employed in small-scale experimental synthesis or prototype development, this material is available in multiple packaging sizes to accommodate varying research batch requirements. The combination of controlled particle dimensions and low impurity levels enhances its reliability for studying conductive network formation and electrochemical performance in next-generation battery systems.