BAPO (Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, Irgacure 819, >99.5%) as Photoinitiator for Solid-State & Gel Polymer Electrolytes (GPEs), 50-200 g/bottle, CSSGPEPIBAPO

Its functional roles in GPEs synthesis are: (1) Deep-Curing of Thick Separators & Electrodes: Because BAPO absorbs at longer, highly penetrating wavelengths, it successfully initiates radical polymerization deep within thick, porous separator matrices (such as glass fiber or high-loading composite electrodes) where shorter UV wavelengths would be blocked or scattered. (2) Rapid In Situ UV-Gelation in Sealed Cells: Enables the fast conversion of liquid precursor solutions (comprising structural crosslinkers like TPGDA, HDDA, or PEGDA dissolved in carbonate electrolytes and battery salts) into robust, dimensionally stable gel networks within minutes under UV exposure. (3) Elimination of Thermal Stress & Side Reactions: Replaces thermal initiators (like AIBN or BPO) with a clean, room-temperature light-triggered mechanism, avoiding thermal expansion mismatches and preventing premature side reactions during cell assembly.