SN (Succinonitrile, >99.9%) Solid as Battery Electrolyte Solvent, 100-500 g/bottle, CBESSN

Succinonitrile (commonly designated as SN or butane-1,4-dinitrile) is a specialized dinitrile organic compound engineered as a high-permittivity, high-safety solvent and interphase-stabilizing additive for advanced lithium-ion, solid-state, and high-voltage energy storage systems. By incorporating dual terminal nitrile groups (-CN) separated by a short aliphatic backbone, SN provides unique electrochemical and thermal stability profiles distinct from conventional carbonate or ether matrices.

Its functional roles in electrolyte engineering are: (1) High-Voltage Cathode Passivation: The lone electron pairs on the nitrogen atoms of the nitrile groups coordinate strongly with transition metal dissolution sites on high-voltage cathode surfaces (such as NMC or LiCoO2). This forms a protective, passivating film that suppresses parasitic oxidative decomposition above 4.3 V. (2) Solid-State & Quasi-Solid Electrolyte Matrix: Because of its high melting point and robust thermal stability, SN is frequently deployed as a primary or plasticizing matrix in semi-solid polymer electrolytes (SPEs) and composite solid-state electrolytes, facilitating high ionic conductivity without volatilization risks. (3) Thermal Safety & Flame Resistance: The exceptionally high boiling point (~265 °C) and lack of volatile flammable alkyl chains drastically reduce vapor pressure and suppress ignition risks during thermal abuse or overcharge scenarios.

Its main electrochemical application domains are: (1) High-Voltage Lithium-Ion Batteries: Integrated as a functional co-solvent or high-voltage additive to prevent electrolyte oxidation and transition metal cross-over in cells operating at aggressive upper-cutoff voltages. (2) Quasi-Solid-State Lithium Batteries: Used alongside polymer hosts (such as PVDF-HFP or PEO) to form gel polymer electrolytes that balance mechanical flexibility with high ambient ionic conductivity.

Part Number	CBESSN (C-BES-SN)
CAS	110-61-2
Chemical Formula	NCCH2CH2CN
Appearance	Colorless, odorless, waxy solid at room temperature
Purity	>99.9% (Battery Grade)
Molecular Weight	80.09 g/mol
Density	0.985 g/mL at 25 °C (lit.)
Melt Point	50-54 °C (lit.)
Package Size	100 g, 200 g, and 500 g/bottle

Notes: Please store the SN solvent in a dry place (glovebox or dryroom is the best option)

References: 

1. C. Fu, et al. A dual-salt coupled fluoroethylene carbonate succinonitrile-based electrolyte enables Li-metal batteries, J. Mater. Chem. A (2020) 8 (4): 2066–2073.
2. B. Kim, et al. Succinonitrile-Rich Electrolyte Solvation Structure Enables Wide-Temperature-Range Operation of Lithium-Metal Batteries, Small, 2025, 9, 2401957