Product Introduction

Magnesium Bis(trifluoromethanesulfonyl)imide (Mg(TFSI)₂, CAS No. 133395-16-1) is a high-performance magnesium-based electrolyte salt widely used in magnesium-ion batteries, electrochemical energy storage, ionic liquid systems, and advanced electrolyte research. It belongs to the family of bis(trifluoromethanesulfonyl)imide (TFSI⁻) salts, which are known for their excellent thermal stability, chemical stability, and wide electrochemical stability window.

Due to the weakly coordinating nature of the TFSI⁻ anion, Mg(TFSI)₂ exhibits favorable ionic conductivity and solubility characteristics, making it an important candidate electrolyte salt for the development of next-generation magnesium-ion batteries and multivalent ion energy storage systems.

Chemical Characteristics

Magnesium Bis(trifluoromethanesulfonyl)imide features:

• Weakly coordinating TFSI⁻ anion
• High thermal stability
• Good chemical stability
• Excellent ionic conductivity potential
• Suitable for non-aqueous electrolyte systems
• Compatibility with advanced electrochemical research

The TFSI⁻ anion structure helps reduce ion pairing effects and improves electrolyte performance compared with traditional inorganic magnesium salts.

Key Research Applications

1. Magnesium-Ion Battery Electrolytes

Mg(TFSI)₂ is primarily investigated as an electrolyte salt for magnesium-ion batteries (MIBs).

Typical applications include:

• Magnesium battery electrolyte formulation
• Mg²⁺ ion transport studies
• Rechargeable magnesium battery research
• Electrochemical cycling evaluation
• Next-generation energy storage systems

Magnesium-ion batteries attract attention due to magnesium’s high volumetric capacity and abundance compared with lithium resources.

2. Advanced Electrolyte Systems

Magnesium Bis(trifluoromethanesulfonyl)imide is used in the development of high-performance electrolyte systems.

Typical applications include:

• Organic electrolyte systems
• Ionic liquid electrolytes
• Gel electrolyte research
• Electrochemical stability studies
• Ion conductivity optimization

3. Solid-State & Hybrid Battery Research

Mg(TFSI)₂ is explored in advanced battery platforms.

Typical applications include:

• Solid-state magnesium batteries
• Polymer electrolyte systems
• Hybrid electrolyte development
• Interface stability studies

4. Electrochemical Research

Due to its electrochemical properties, Mg(TFSI)₂ is used in fundamental studies.

Typical applications include:

• Magnesium deposition/dissolution studies
• Electrode–electrolyte interface research
• Charge transfer mechanism studies
• Electrochemical reaction analysis

5. Ionic Liquid & Functional Materials

TFSI-based salts are widely studied for ionic liquid-related applications.

Typical applications include:

• Ionic liquid preparation
• Functional electrolyte materials
• Energy storage materials
• Electrochemical devices

Advantages

• High-performance magnesium electrolyte salt
• Excellent thermal stability
• Wide electrochemical stability window
• Weakly coordinating TFSI⁻ structure
• Suitable for advanced battery research
• Important material for multivalent ion batteries

Storage & Handling

• Store in a tightly sealed container.
• Keep in a dry and moisture-free environment.
• Protect from humidity due to sensitivity of electrolyte materials.
• Avoid direct contact with skin and eyes.
• Handle under appropriate laboratory conditions.

Magnesium Bis(trifluoromethanesulfonyl)imide should be handled following standard chemical safety procedures.

Research Areas

• Magnesium-ion batteries
• Multivalent ion batteries
• Electrolyte chemistry
• Solid-state batteries
• Ionic liquids
• Electrochemical energy storage
• Advanced materials research

What is Magnesium Bis(trifluoromethanesulfonyl)imide?

Magnesium Bis(trifluoromethanesulfonyl)imide (Mg(TFSI)₂) is a magnesium salt used mainly as an electrolyte component for magnesium-ion batteries and electrochemical research.

What is Mg(TFSI)₂ used for?

Mg(TFSI)₂ is mainly used in:

• Magnesium battery electrolytes
• Electrochemical energy storage research
• Ionic liquid systems
• Advanced electrolyte development

Why is TFSI-based magnesium salt used in batteries?

The TFSI⁻ anion provides weak coordination with magnesium ions, helping improve electrolyte stability and ionic transport properties.

Is Mg(TFSI)₂ a battery electrolyte?

Yes. Mg(TFSI)₂ can function as an electrolyte salt in magnesium-ion battery research. It is not an electrode active material but provides Mg²⁺ ions for charge transport.

What is the difference between Mg(TFSI)₂ and MgCl₂?

Can Mg(TFSI)₂ be used in solid-state batteries?

Yes. Mg(TFSI)₂ is investigated in polymer, gel, and hybrid solid-state electrolyte systems.

How should Mg(TFSI)₂ be stored?

It should be stored in a sealed container under dry conditions, preferably protected from moisture.

Is this product intended for research use only?

Yes. This product is supplied for laboratory research, battery material development, electrochemical studies, and industrial R&D applications only.