 |
Molecular Formula: C2F6LiNO4S2
Appearance: White crystals or powder
Molecular Weight: 287.09
Melting Point: 234-238 °C(lit.)
Density: 1,334 g/cm3
Vapor Pressure: 0Pa at 25℃
Flash Point: >100°C (>212°F)
Storage Conditions: Inert atmosphere, room temperature
Solubility: H2O: 10 mg/mL, clear, colorless
Package Information: 100g, 500g, 1kg, or customized
LiTFSI has a high thermal decomposition temperature and relatively low sensitivity to moisture and temperature, allowing it to remain stable over a wider temperature range, thus improving battery safety.
Its electrochemical stability is significantly better than that of traditional lithium salts (such as LiPF6), supporting higher voltage systems, making it particularly suitable for the development of high energy density batteries, reducing the probability of side reactions, and improving cycle life.
LiTFSI dissolves efficiently in a variety of polar solvents, and the resulting solutions exhibit high ionic conductivity, making them suitable for liquid, gel, and polymer electrolyte systems, significantly improving battery low-temperature and rate performance.
It exhibits good compatibility with common electrode materials (such as NMC, LFP, and LMO) with few side reactions; it is also suitable for advanced energy storage systems such as solid-state batteries, polymer electrolytes, and supercapacitors.
LiTFSI is a core component of many next-generation electrolyte systems, especially widely used in all-solid-state batteries, polymer electrolytes (such as PEO-LiTFSI), and gel electrolytes. It can enhance ion mobility, stabilize SEI films, and improve high-temperature performance.
In polymer systems, LiTFSI, with its large volume and structurally stable TFSI⁻ anion, achieves excellent chain mobility and conductivity, making it a widely adopted standard lithium salt in academia and industry.
Used in IL (ionic liquid) systems or mixed solvent systems, they provide excellent conductivity and voltage withstand capability, improving the cycle performance and safety of energy storage devices.
LiTFSI is an important precursor for many functional ionic liquids (such as EMIM-TFSI), which helps to improve conductivity, thermal stability and hydrophobicity.
Used as additives in certain high-end functional materials to enhance their heat resistance, stability, or electrical conductivity.
It is recommended to store in a dry and sealed condition. Water absorption will affect the moisture control in the electrolyte formula and may lead to a decrease in battery performance.
It is recommended to store in a cool, dry place and seal with nitrogen or dry air to ensure the quality of the battery raw materials.
If contact occurs, wash immediately with plenty of water; if dust is inhaled, move to a well-ventilated area and seek medical help.
At higher voltages (>3.8V vs. Li+/Li), the organic electrolyte of pure LiTFSI may corrode aluminum foil. Industrially, this problem is often solved by adding a small amount of lithium salt (such as LiPF6) or corrosion inhibitor, which needs to be carefully considered in formulation design.
1. What is Lithium Bis (Trifluoromethanesulphonyl) Imide (LiTFSI)?
LiTFSI is a high-performance lithium salt widely used in advanced electrolyte systems, especially solid-state batteries and polymer electrolytes, due to its excellent electrochemical stability and conductivity.
2. What are the advantages of LiTFSI compared to LiPF6?
LiTFSI is more stable, less prone to decomposition, does not produce HF, and has higher temperature resistance and conductivity, making it more suitable for high-voltage and solid-state systems.
3. How to determine if the purity of a LiTFSI product meets the requirements for battery-grade applications?
Battery-grade applications have extremely high purity requirements. Key indicators include: main content (e.g., >99.9%), key metal impurity content (e.g., Na, K, Fe, Ni content less than 1 ppm), moisture content (typically required to be <50 ppm, or even <20 ppm), and free acid content. It is essential to obtain a detailed Certificate of Analysis (CoA) from the supplier for verification.
We are a professional Lithium Bis(Trifluoromethanesulphonyl)Imide supplier. For more information or to purchase Lithium Bis(Trifluoromethanesulphonyl)Imide(C2F6LiNO4S2), please feel free to contact us via jomin@wolfabio.com.
Molecular Formula: C2F6LiNO4S2
Appearance: White crystals or powder
Molecular Weight: 287.09
Melting Point: 234-238 °C(lit.)
Density: 1,334 g/cm3
Vapor Pressure: 0Pa at 25℃
Flash Point: >100°C (>212°F)
Storage Conditions: Inert atmosphere, room temperature
Solubility: H2O: 10 mg/mL, clear, colorless
Package Information: 100g, 500g, 1kg, or customized
LiTFSI has a high thermal decomposition temperature and relatively low sensitivity to moisture and temperature, allowing it to remain stable over a wider temperature range, thus improving battery safety.
Its electrochemical stability is significantly better than that of traditional lithium salts (such as LiPF6), supporting higher voltage systems, making it particularly suitable for the development of high energy density batteries, reducing the probability of side reactions, and improving cycle life.
LiTFSI dissolves efficiently in a variety of polar solvents, and the resulting solutions exhibit high ionic conductivity, making them suitable for liquid, gel, and polymer electrolyte systems, significantly improving battery low-temperature and rate performance.
It exhibits good compatibility with common electrode materials (such as NMC, LFP, and LMO) with few side reactions; it is also suitable for advanced energy storage systems such as solid-state batteries, polymer electrolytes, and supercapacitors.
LiTFSI is a core component of many next-generation electrolyte systems, especially widely used in all-solid-state batteries, polymer electrolytes (such as PEO-LiTFSI), and gel electrolytes. It can enhance ion mobility, stabilize SEI films, and improve high-temperature performance.
In polymer systems, LiTFSI, with its large volume and structurally stable TFSI⁻ anion, achieves excellent chain mobility and conductivity, making it a widely adopted standard lithium salt in academia and industry.
Used in IL (ionic liquid) systems or mixed solvent systems, they provide excellent conductivity and voltage withstand capability, improving the cycle performance and safety of energy storage devices.
LiTFSI is an important precursor for many functional ionic liquids (such as EMIM-TFSI), which helps to improve conductivity, thermal stability and hydrophobicity.
Used as additives in certain high-end functional materials to enhance their heat resistance, stability, or electrical conductivity.
It is recommended to store in a dry and sealed condition. Water absorption will affect the moisture control in the electrolyte formula and may lead to a decrease in battery performance.
It is recommended to store in a cool, dry place and seal with nitrogen or dry air to ensure the quality of the battery raw materials.
If contact occurs, wash immediately with plenty of water; if dust is inhaled, move to a well-ventilated area and seek medical help.
At higher voltages (>3.8V vs. Li+/Li), the organic electrolyte of pure LiTFSI may corrode aluminum foil. Industrially, this problem is often solved by adding a small amount of lithium salt (such as LiPF6) or corrosion inhibitor, which needs to be carefully considered in formulation design.
1. What is Lithium Bis (Trifluoromethanesulphonyl) Imide (LiTFSI)?
LiTFSI is a high-performance lithium salt widely used in advanced electrolyte systems, especially solid-state batteries and polymer electrolytes, due to its excellent electrochemical stability and conductivity.
2. What are the advantages of LiTFSI compared to LiPF6?
LiTFSI is more stable, less prone to decomposition, does not produce HF, and has higher temperature resistance and conductivity, making it more suitable for high-voltage and solid-state systems.
3. How to determine if the purity of a LiTFSI product meets the requirements for battery-grade applications?
Battery-grade applications have extremely high purity requirements. Key indicators include: main content (e.g., >99.9%), key metal impurity content (e.g., Na, K, Fe, Ni content less than 1 ppm), moisture content (typically required to be <50 ppm, or even <20 ppm), and free acid content. It is essential to obtain a detailed Certificate of Analysis (CoA) from the supplier for verification.
We are a professional Lithium Bis(Trifluoromethanesulphonyl)Imide supplier. For more information or to purchase Lithium Bis(Trifluoromethanesulphonyl)Imide(C2F6LiNO4S2), please feel free to contact us via jomin@wolfabio.com.
