AIBN (Azobisisobutyronitrile) Powder as Thermal Initiator for Solid-State Polymer Electrolyte, 20-100 g/bottle, CSSPETIAIBN

Using AIBN (Azobisisobutyronitrile) as a thermal initiator for in-situ polymerization is one of the most widely adopted strategies to fabricate solid-state polymer electrolytes. This approach effectively bridges the processing gap between liquid electrolytes and conventional solid state films. Instead of dry-casting and mechanically laminating a thick polymer membrane, a low-viscosity liquid precursor solution—containing monomers, lithium or sodium salts, and AIBN—is injected directly into an assembled cell. Upon mild heating, it cures into a solid matrix right in the pores of the electrodes.

AIBN functions via a classic free-radical solution polymerization pathway. (1) Radical Generation (Initiation): When heated, typically to 60°C – 80°C, the central azo group (-N=N-) in AIBN undergoes homolytic cleavage. This releases a thermodynamically stable nitrogen gas molecule (N2) and generates two highly reactive 2-cyanoprop-2-yl carbon radicals:

Part Number	CSSPETIAIBN (C-SSPE-TI-AIBN)
CAS	78-67-1
Chemical Formula	C₈H₁₂N₄
Appearance	White Powder
Molecular Weight	164.21
Melt Point	102-104 °C (dec.)(lit.)
Density	1.11 g/cm3
Storage Conditions	6-8 °C, Ar filled
Package Size	20 g, 50 g, and 100 g/bottle

Notes: Please try to store the AIBN powder in a dry and low temperature place (glovebox is preferred). 

References: 

1. L. Mou, et al. High-Energy-Density LiNi0.9Co0.05Mn0.05O2//SiOx-Graphite Soft-Pack Semi-Solid-State Batteries Using In Situ Solidified Polymer-Based Electrolytes for Practical Applications, ACS Appl. Mater. Interfaces 2025, 17, 28, 41044–41054
2. L. Su, et al. Interface film-induced in-situ curing by site-specific polymerization for advanced polymer solid-state lithium metal batteries, Journal of Power Sources, 2026, 689, 240810