PP14OTf (1-Butyl-1-methylpiperidinium trifluoromethanesulfonate, PIP14OTF or BMPipOTf, >99.0%) Ionic Liquid as Battery Electrolyte Solvent, 25-100 g/bottle, CBESPP14OTf

1-Butyl-1-methylpiperidinium trifluoromethanesulfonate—commonly abbreviated in literature as PP14OTf or [BMPip][OTf]—is a room-temperature ionic liquid comprising a 6-membered piperidinium ring cation paired with a trifluoromethanesulfonate (OTf-) anion. (Note: While pyrrolidinium and piperidinium rings are structurally distinct, the PP14 shorthand notation is frequently utilized across cyclic quaternary ammonium families depending on the specific alkyl chain configurations). In electrochemical energy storage, piperidinium-based ionic liquids are investigated as stable, non-flammable electrolyte solvents or liquid matrices for high-voltage and high-temperature lithium and sodium battery systems.

Piperidinium-based ionic liquids are utilized either as neat binary solvent systems or as structural components in composite electrolytes: (1) Binary Ionic Liquid-Salt Electrolyte (e.g., LiOTf/PP14OTf System). It serves as a non-flammable liquid medium where the common triflate anion minimizes cross-anion coordination competition, promoting stable ionic transport. (2) Blending the PP14OTf liquid formulation with polymer hosts (such as PVdF-HFP) or inorganic nanofillers (like fumed silica orAl2O3). It yields a robust gel or composite membrane that prevents electrolyte leakage while retaining high ionic conductivity at elevated operating temperatures.

Its main electrochemical applications domains are: (1) High-Temperature Operational Resilience: Enables safe, continuous cycling under severe thermal loads (up to 80°C–100°C+) where standard organic carbonate electrolytes suffer from severe gas generation, boiling, and cell bloating. (2) Interfacial Stability: The triflate-based chemistry combined with the bulky piperidinium cation assists in forming stable, protective solid electrolyte interphase (SEI) layers on reactive metal anodes, helping suppress continuous electrolyte consumption. (3) Compatibility with Alternative Chemistries: Explored for specialized lithium and sodium secondary cells requiring high oxidative resistance and non-flammability.

Part Number	CBESPP14OTf (C-BES-PP14OTf)
CAS	1357500-93-6
Chemical Formula	C₁₁H₂₂F₃NO₃S
Appearance	Colorless liquid
Purity	>99.0%
Molecular Weight	305.36 g/mol
Density	1.377 g/cm³ (25 °C)
Package Size	25 g, 50 g, and 100 g/bottle

Notes: Please try to store the PP14TFSI liquid in the glovebox. 

References: 

1. D. Zhang, et al. Constructing Efficient Mg(CF3SO3)2 Electrolyte via Tailoring Solvation and Interface Chemistry for High-Performance Rechargeable Magnesium Batteries, Adv. Energy Mater., 2023, 13, 2301795
2. D. Zhang, et al. Anion-Regulated Solvation Structure and Electrode Interface toward Rechargeable Magnesium Batteries, Nano Lett. (2025) 25 (12): 4846–4853.