Lithium Difluoro(oxalato)borate (LiDFOB) / ジフルオロ(オキサラト)ホウ酸リチウム CAS 409071-16-5

よくある質問 — 技術・供給について

• 質問:

  LiDFOB、LiODFB、ジフルオロ(オキサラト)ホウ酸リチウムは同じ材料ですか？

  回答: Yes. These names all identify CAS 409071-16-5 with formula LiBF2(C2O4), also written C2BF2LiO4. They should not be confused with LiBOB, LiBF4, lithium difluorophosphate or other lithium salts, so include the CAS number and intended electrolyte role in an inquiry.
• 質問:

  LiDFOB がリチウムイオン電池電解液に使用される理由は？

  回答: LiDFOB can function as an electrolyte additive or co-salt to influence electrode interface film formation, cycle performance and stability under certain conditions. It is not a complete electrolyte; the final solvent blend, concentration, electrode system and operating window determine its effect.
• 質問:

  電池グレード LiDFOB で合意すべき規格は？

  回答: Confirm assay, moisture, acidity or acid-related limits, insoluble matter and the required trace-metal or ionic impurity profile. Battery-grade material is commonly specified at 99.9% or higher assay with tightly controlled moisture, so request the analytical method and acceptance limits.
• 質問:

  How moisture-sensitive is LiDFOB, and how should it be stored?

  回答: LiDFOB is strongly hygroscopic and readily soluble in water, so moisture ingress can change its composition and battery performance. Store it cool, dry and tightly closed, ideally under dry inert gas, and minimize exposure to humid air during sampling and transfer.
• 質問:

  What are the key physical properties of LiDFOB?

  回答: LiDFOB is normally a white crystalline powder with molecular weight about 143.77 g/mol. Reported data commonly include a melting point around 265-271 C and density around 2.01-2.12 g/cm3, with strong hygroscopicity and ready solubility in water and carbonate, ether, and gamma-butyrolactone solvents.