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Name: Lithium bis(oxyalyl)difluorophosphate (LiDFBP)

Synonyms: 

Lithium difluorobis(oxalato)phosphate;

Lithium bis[ethanedioato(2-)-κO1,κO2]difluorophosphate(1-);

LiDODFP;

LiDFBOP.

CAS No.: 678966-16-0

EINECS: N/A

MF: C4F2LiO8P

MW: 251.9

MP: N/A

BP: N/A

FP: N/A

Density: N/A

Purity: 97% Min.

Appearance: White powder

Storage Condition: Moisture sensitive, store in the glove box is recommended.

Application: This product is used as an electrolyte additive for lithium-ion batteries, which can improve the conductivity of a non-hydrolysate solution, improve the low-temperature output performance of the battery, inhibit the decomposition of the positive electrode surface and prevent the oxidation reaction of electrolyte solution in the process of high-temperature cycle, improve the discharge capacity and swelling characteristics after high-temperature storage.

Lithium difluoro(bisoxalato)phosphate (LiDFBOP or LiDFBP) is introduced as a novel lithium-salt-type electrolyte additive for lithium-ion batteries. The research reveals that LiDFBOP is oxidized to form a uniform and electrochemically stable solid electrolyte interphase (SEI) on electrode material. Fluorinated SEI rich in LiF and LixPOyFz species can be yielded, which can further improve the stability and ionic conductivity of SEI for fast Li+ transportation. It is widely used to improve the stability and safety of nickel-rich cathode-based lithium-ion batteries and lithium metal batteries. 

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