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Atomfair Lithium bis(fluorosulfonyl)imide LiFSI F2LiNO4S2 CAS 171611-11-3

Lithium bis(fluorosulfonyl)imide (LiFSI) is a high-performance lithium salt widely utilized in advanced electrochemical applications, particularly in next-generation lithium-ion and lithium-metal batteries. With the molecular formula F2LiNO4S2, this ultra-dry, 99.9% trace metals basis compound offers superior thermal stability, high ionic conductivity, and excellent electrochemical compatibility compared to traditional lithium salts like LiPF6. LiFSI is an ideal electrolyte additive or primary conducting salt for high-voltage and high-energy-density battery systems, enabling improved cycle life, enhanced safety, and reduced interfacial resistance. Its exceptional solubility in organic carbonate solvents and ionic liquids makes it a preferred choice for researchers and engineers developing cutting-edge energy storage…

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Description

Lithium bis(fluorosulfonyl)imide (LiFSI) is a high-performance lithium salt widely utilized in advanced electrochemical applications, particularly in next-generation lithium-ion and lithium-metal batteries. With the molecular formula F2LiNO4S2, this ultra-dry, 99.9% trace metals basis compound offers superior thermal stability, high ionic conductivity, and excellent electrochemical compatibility compared to traditional lithium salts like LiPF6. LiFSI is an ideal electrolyte additive or primary conducting salt for high-voltage and high-energy-density battery systems, enabling improved cycle life, enhanced safety, and reduced interfacial resistance. Its exceptional solubility in organic carbonate solvents and ionic liquids makes it a preferred choice for researchers and engineers developing cutting-edge energy storage solutions. This product is rigorously purified to minimize impurities, ensuring optimal performance in sensitive applications such as solid-state batteries, supercapacitors, and specialty electrochemical devices.

Properties

  • CAS Number: 171611-11-3
  • Complexity: 235
  • IUPAC Name: lithium;bis(fluorosulfonyl)azanide
  • InChI: InChI=1S/F2NO4S2.Li/c1-8(4,5)3-9(2,6)7;/q-1;+1
  • InChI Key: VDVLPSWVDYJFRW-UHFFFAOYSA-N
  • Exact Mass: 186.93968459
  • Molecular Formula: F2LiNO4S2
  • Molecular Weight: 187.1
  • SMILES: [Li+].[N-](S(=O)(=O)F)S(=O)(=O)F
  • Topological: 86
  • Monoisotopic Mass: 186.93968459
  • Physical Description: Dry Powder
  • Synonyms: 171611-11-3, Lithium bis(fluorosulfonyl)imide, Imidodisulfuryl fluoride, lithium salt (1:1), DTXSID70893365, DTXCID601323346, 686-526-7, 924-516-9, Imidodisulfuryl fluoride lithium salt, Lithium bis(fluorosulfonyl)amide, Lithium;bis(fluorosulfonyl)azanide, [bis(fluorosulfonyl)amino]lithium, Lithium bis(fluorosulfonyl)amide (Lithium Battery Grade), Imidodisulfuryl fluoride lithium salt (LiFSI), LiFSI, MFCD28126786, SCHEMBL278675, Lithiumbis(fluorosulfonyl)amide, VDVLPSWVDYJFRW-UHFFFAOYSA-N, AKOS027439973, AKOS040767419, FS-5705, SB66388, lithium(1+) ion bis(fluorosulfonyl)azanide, L0281, D91262, EN300-6737897, Lithium bis(fluorosulfonyl)imide, ultra dry, 99.9% trace metals basis

Lithium bis(fluorosulfonyl)imide (LiFSI) is primarily used as a conductive salt in lithium-ion and lithium-metal battery electrolytes, offering enhanced thermal and electrochemical stability. It enables higher operating voltages (>4.5V) and improves cycle life in high-energy-density applications like electric vehicles and grid storage. LiFSI also serves as a key component in solid polymer electrolytes and ionic liquid-based systems for advanced battery technologies.

Safety and Hazards

GHS Hazard Statements

  • H302 (77.1%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H313 (11.7%): May be harmful in contact with skin [Warning Acute toxicity, dermal]
  • H314 (20.6%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
  • H315 (77.1%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H318 (77.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H341 (12.6%): Suspected of causing genetic defects [Warning Germ cell mutagenicity]
  • H361 (30%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
  • H361fd (46.6%): Suspected of damaging fertility; Suspected of damaging the unborn child [Warning Reproductive toxicity]

Precautionary Statements

  • P203, P260, P264, P264+P265, P270, P280, P301+P317, P301+P330+P331, P302+P317, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P321, P330, P332+P317, P362+P364, P363, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 3 (66.7%)
  • Acute Tox. 4 (33.3%)
  • Skin Corr. 1B (66.7%)
  • Skin Irrit. 2 (33.3%)
  • Skin Sens. 1 (33.3%)
  • Eye Dam. 1 (100%)
  • Repr. 2 (33.3%)
  • Aquatic Chronic 3 (66.7%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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