Lithium difluoro(oxalato)borate(1-)

Bezeichnung:Lithium difluoro(oxalato)borate(1-)

CAS-Nr409071-16-5

Englisch Name:Lithium difluoro(oxalato)borate(1-)

CBNumberCB32554322

SummenformelC2BF2O4.Li

Molgewicht143.76

MOL-Datei409071-16-5.mol

Lithium difluoro(oxalato)borate(1-) physikalisch-chemischer Eigenschaften

Schmelzpunkt	265-271°C
Siedepunkt	275.3℃ at 102kPa
Dichte	2.01-2.065g/cm3 at 20℃
Dampfdruck	0.003Pa at 20℃
storage temp.	Inert atmosphere,Room Temperature
Löslichkeit	Water (Slightly)
Aggregatzustand	powder
Farbe	White to Off-White
InChI	InChI=1S/C2BF2O4.Li/c4-3(5)8-1(6)2(7)9-3;/q-1;+1
InChIKey	MEDDCIKGDMDORY-UHFFFAOYSA-N
SMILES	[F-][B+3]1([O-]C(=O)C(=O)[O-]1)[F-].[Li+]
LogP	-1.18--1.1 at 25℃ and pH2-8

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	26
WGK Germany	3
HS Code	29319090

Gefahreninformationscode (GHS)

Lithium difluoro(oxalato)borate(1-) Chemische Eigenschaften,Einsatz,Produktion Methoden

Verwenden
Lithium difluorooxalatoborate (LIODFB) is a salt for high-performance Li-ion batteries with improved cycle life; power capability; low temperature and high rate performance of the battery. Lithium difluorooxalatoborate can be used as a film-forming additive in the electrolyte of lithium batteries or replace lithium hexafluorophosphate as a conductive salt.
Verwenden
LiODFB is used as a thermally stable novel salt and an electrolytic additive for lithium-ion batteries. It facilitates the formation of stable solid electrolyte interphase (SEI) on the negative electrode during the fabrication of the cell. It substantially enhances the cyclic performance, capacity and power retention of the electrochemical system.
Allgemeine Beschreibung
This product has been enhanced for energy efficiency.
Advantages
lithium difluoro(oxalato)borate(1-), a hybrid salt of lithium bis(oxalate)borate(LiBOB) and lithium tetrafluoroborate(LiBF4), possesses beneficial properties of both parent anions. These merits include 1) a relatively high ionic conductivity over a wide temperature range, 2) the ability to not only support metallic lithium cycling reversibly on the surface of a copper anode current collector but also passivate the aluminum cathode current collector at high voltage, 3) the active formation of a SEI layer, and 4) the possibility to increase battery safety protection and overcharge tolerance[1].
Einzelnachweise
[1] Hongming Zhou. “Synthesis of lithium difluoro(oxalate)borate (LiODFB), phase diagram and ions coordination of LiODFB in dimethyl carbonate.” Journal of Central South University 25 1 (2018): 550–560.

Lithium difluoro(oxalato)borate(1-) Upstream-Materialien And Downstream Produkte

Lithium difluoro(oxalato)borate(1-) Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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