LiTFSI based electrolytes for lithium-ion batteries
Electrolyte salt: Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) (and appropriate co-salts depending on the application)
Solvents: Carbonate-based solvents i.e. EC, PC, DOL, DME (solvent type and composition is discussable upon application)
Example Composition:1 M LiTFSI dissolved in EC:DMC (1:1, v:v)
Batch size: 25 g – 20kg (larger amounts available on request )
Packaging Electrolyte: UN-safety aluminum bottles (made in Germany), sealed in pouch bags under an inert gas atmosphere
Packaging:
- Our electrolytes come in UN-certified aluminum transport bottles (made in Germany), which are wrapped in pouch bags sealed under an inert gas atmosphere
- Pouch bags are shipped in UN-approved cardboard boxes suitable for the transportation of dangerous goods (in compliance with ADR).
Delivery time:max. 14 days within the EU
If you are further interested in our tailor-made LiTFSI-based electrolyte solutions, please feel free to contact us at contact@e-lyte-innovations.de or by using our contact form:
send requestCharacteristics of LiTFSI as conducting salt in electrolytes
Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI, LiC2F6NO4S2) is a promising alternative to the most used lithium salt, LiPF6, due to its advanced thermal and chemical stability, including a reduced sensitivity towards hydrolysis.
However, the inability of LiTFSI to form a protective layer on the aluminum current collector leading to the anodic dissolution of aluminum at high potentials (> 3.5 V vs. Li+/Li), limits its use as single salt, without LiPF6 or fluorinated solvents.
Application fields
LiTFSI is highly soluble in water and organic solvents. This enables its use in either water-in-salt electrolytes for aqueous lithium-ion batteries or highly concentrated electrolytes. When used as an additive for high-voltage applications (> 4.5 V vs. Li+/Li), it can enhance the long-term cycling stability > 500 cycles.
