171611-11-3
LIFSI
CAS: 171611-11-3
Molecular Formula: F2NO4S2.Li
171611-11-3 - Names and Identifiers
171611-11-3 - Physico-chemical Properties
| Molecular Formula | F2NO4S2.Li |
| Molar Mass | 187.0721064 |
| Density | 1.052g/cm3 at 25℃ |
| Melting Point | 124-128℃ |
| Water Solubility | Soluble in water |
| Vapor Presure | 27.198-31.064Pa at 20-25℃ |
| Appearance | Solid |
| Color | White to Almost white |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Physical and Chemical Properties | Lithium bisfluorosulfonyl imide (LiFSI) has the advantages of high stability (no decomposition below 200 ℃), excellent low temperature performance, good hydrolysis stability and more friendly environment, can be used as an alternative to lithium hexafluorophosphate secondary lithium ion battery electrolyte lithium salt of the next generation. |
| Use | The lithium salt of bisfluorosulfonyl imide can be used as an electrolyte additive for lithium ion batteries, and can be applied to the electrolyte of rechargeable lithium batteries to effectively reduce the high and low temperature resistance of the SEI layer formed on the surface of the electrode plate at low temperatures, reduce the capacity loss of the lithium battery in the process of placing, so as to provide high battery capacity and electrochemical performance of the battery, can also be used as a primary battery electrolyte; Can be used as a polymerization catalyst; it can also be used as an antistatic agent in the industrial field. |
171611-11-3 - Risk and Safety
| UN IDs | 1759 |
| Hazard Class | 8 |
| Packing Group | II |
171611-11-3 - Introduction
Open Data Unverified Data
Lithium bis(fluorosulfonyl)imide (LiFSI) is an ionic liquid electrolyte commonly used in lithium-ion batteries as part of the electrolyte solution. It has high ion conductivity, stability, and low volatility, which can improve the cycling life and safety performance of lithium batteries.
Properties: Lithium bis(fluorosulfonyl)imide (LiFSI) is an ionic liquid with high ion conductivity, stability, high electronic conductivity, and low volatility. It is a colorless to pale yellow liquid at room temperature, soluble in organic solvents such as diethyl ether, acetone, and acetonitrile. It has excellent lithium salt solubility and ion transport properties.
Uses: Lithium bis(fluorosulfonyl)imide (LiFSI) is commonly used as part of the electrolyte solution in lithium-ion batteries. It can improve the cycling life, power performance, and safety of lithium batteries, making it suitable for high-energy density and high-power density lithium-ion batteries.
Synthesis: The preparation of Lithium bis(fluorosulfonyl)imide (LiFSI) usually involves chemical synthesis methods, including reacting benzyl fluorosulfonic acid anhydride and lithium imide. It is important to control reaction conditions to obtain a high-purity product.
Safety: Lithium bis(fluorosulfonyl)imide (LiFSI) is a chemical substance that should be handled with care to avoid skin and eye contact, as well as inhalation of vapors. Proper safety measures should be taken during handling and storage, such as wearing protective gloves, goggles, and ensuring adequate ventilation. Adherence to safety protocols, such as proper container labeling and avoiding mixing operations, is necessary to ensure the safe use of this chemical.
Last Update：2024-04-09 19:43:38
171611-11-3 - Application
Open Data Unverified Data
The lithium salt of BIS (fluorosulfonyl) imide can be used as an electrolyte additive for lithium ion batteries and applied to the electrolyte of rechargeable lithium batteries, the invention can effectively reduce the high and low temperature resistance of the SEI layer formed on the surface of the electrode plate at low temperatures, reduce the capacity loss of the lithium battery during placement, thereby providing high battery capacity and electrochemical performance of the battery, it can also be used as an electrolyte for a primary battery; It can be used as a polymerization catalyst; And it can also be used as an antistatic agent in the industrial field.
Overview
lithium bisfluorosulfonyl imide (LiFSI) due to its high stability (no decomposition below 200 ℃), it has the advantages of excellent low temperature performance, good hydrolysis stability and more friendly environment. It can be used as a substitute for lithium hexafluorophosphate in the next generation of secondary lithium ion battery electrolyte lithium salt.
Application
lithium bisfluorosulfonyl imide has the characteristics of good electrochemical stability, good hydrolysis resistance and high conductivity, it can be commonly used in an electrolyte, and in particular, in a power battery, the cycle performance and rate performance of the power battery can be improved.
Last Update：2024-04-09 19:43:38
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