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| | Lithium difluoro(oxalato)borate(1-) Basic information | | Appearance |
| Product Name: | Lithium difluoro(oxalato)borate(1-) | | Synonyms: | Lithium difluoro(oxalato)borate(1-);LiFBOB;LIF2OB;Lithium difluoro(ethanedioato)borate;Lithium oxalatodigluoroborate;2,2-difluoro-1,3-dioxa-2-boranuidacyclopentane-4,5-dione;Lithium difluoro(oxalato)borate, 99%, water ≤200 ppm;Lithium difluoro(oxalato)bora | | CAS: | 409071-16-5 | | MF: | C2BF2O4.Li | | MW: | 143.76 | | EINECS: | 803-919-2 | | Product Categories: | | | Mol File: | 409071-16-5.mol |  |
| | Lithium difluoro(oxalato)borate(1-) Chemical Properties |
| Melting point | 265-271°C | | Boiling point | 275.3℃ at 102kPa | | density | 2.01-2.065g/cm3 at 20℃ | | vapor pressure | 0.003Pa at 20℃ | | storage temp. | Inert atmosphere,Room Temperature | | solubility | Water (Slightly) | | form | powder | | color | 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 |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26 | | WGK Germany | 3 | | HS Code | 29319090 |
| | Lithium difluoro(oxalato)borate(1-) Usage And Synthesis |
| Appearance | White Solid | | Uses | 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. | | Uses | 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. | | General Description | 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]. | | References |
[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.
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| | Lithium difluoro(oxalato)borate(1-) Preparation Products And Raw materials |
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