1.0 M LiPF6 DMC
lithium hexafluorophosphate
CAS: 21324-40-3
Molecular Formula: F6LiP
1.0 M LiPF6 DMC - Names and Identifiers
| Name | lithium hexafluorophosphate |
| Synonyms | 1.0 M LiPF6 DMC 1.0 M LiPF6 DEC Hexafluoro-,lithium Lithium hexafluoroph LITHIUM HEXAFLUOROPHOSPHATE lithium hexafluorophosphate Lithium hexafluorophosphate(1-) Phosphate(1-), hexafluoro-, lithium |
| CAS | 21324-40-3 |
| EINECS | 244-334-7 |
| InChI | InChI=1/F6P.Li/c1-7(2,3,4,5)6;/q-1;+1 |
1.0 M LiPF6 DMC - Physico-chemical Properties
| Molecular Formula | F6LiP |
| Molar Mass | 151.91 |
| Density | 1.5 g/mL (lit.) |
| Melting Point | 200 °C (dec.) (lit.) |
| Flash Point | 25 °C |
| Water Solubility | soluble |
| Solubility | H2O: slightly soluble(lit.) |
| Appearance | White powder |
| Specific Gravity | 1.50 |
| Color | APHA: <50 |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable, but readily hydrolyzes upon exposure to water or moist air. Incompatible with strong oxidizing agents, strong acids. |
| Sensitive | Hygroscopic |
| MDL | MFCD00011096 |
| Physical and Chemical Properties | White Crystal or powder, relative density of 1.50, deliquescence; Soluble in water, but also soluble in low concentrations of methanol, ethanol, propanol, carbonate and other organic solvents. Decomposition when exposed to air or heated. The PF5 is rapidly decomposed by the action of water vapor in the air, and white smoke is generated by the emission. |
| Use | Rechargeable lithium-ion battery |
1.0 M LiPF6 DMC - Risk and Safety
| Risk Codes | R34 - Causes burns R24 - Toxic in contact with skin R22 - Harmful if swallowed R37 - Irritating to the respiratory system R10 - Flammable R48/23/24/25 - R35 - Causes severe burns R11 - Highly Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S28A - S16 - Keep away from sources of ignition. |
| UN IDs | UN 3260 8/PG 1 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 28269020 |
| Hazard Note | Irritant/Hygroscopic |
| Hazard Class | 8 |
| Packing Group | II |
1.0 M LiPF6 DMC - Nature
Open Data Verified Data
White Crystal or powder, relative density 1. 50, strong deliquescence; Soluble in water, but also soluble in low concentrations of methanol, ethanol, propanol, carbonate and other organic solvents. Decomposition when exposed to air or heated.
Last Update：2024-01-02 23:10:35
1.0 M LiPF6 DMC - Preparation Method
Open Data Verified Data
- wet method: This method is a method in which a lithium salt is dissolved in anhydrous hydrofluoric acid to form a LiF.HF solution, and then a PF5 gas is introduced for reaction to produce lithium hexafluorophosphate crystals. The product was isolated and dried.
- dry method: This method is a method in which LiF is treated with anhydrous HF to form a porous LiF, and then PFs gas is introduced to react, thereby obtaining a product.
- solvent method: In this method, a lithium salt is reacted with an alkali metal salt, an ammonium salt or an organic amine salt of fluorophosphoric acid in an organic solvent to crystallize, thereby obtaining a lithium hexafluorophosphate product.
Last Update：2022-01-01 11:01:32
1.0 M LiPF6 DMC - Use
Open Data Verified Data
electrolyte materials for lithium ion batteries.
Last Update：2022-01-01 11:01:32
1.0 M LiPF6 DMC - Safety
Open Data Verified Data
lithium hexafluorophosphate rapidly decomposes in air by the action of water vapor, and releases PF5 to generate white smoke. It has an erosive effect on the eyes and skin, especially on the lungs.
Last Update：2022-01-01 11:01:33
1.0 M LiPF6 DMC - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| electrolyte for lithium ion batteries | lithium hexafluorophosphate (LiPF6) is used as an electrolyte for lithium ion batteries, mainly used for lithium ion power batteries, lithium ion energy storage batteries and other daily use batteries. It is also an irreplaceable electrolyte for lithium ion batteries in the near and medium term. Electrolyte is one of the key raw materials for lithium batteries. Lithium battery is mainly composed of positive electrode material, negative electrode material, electrolyte and separator. Among them, the electrolyte is the "blood" of the lithium battery, conducting ions and electrons between the positive and negative electrodes. A suitable electrolyte must have the following properties: high ionic conductivity, wide electrochemical stability window, good thermal stability, safety and low toxicity to ensure that lithium batteries have the advantages of high voltage and high specific energy. As one of the key raw materials for lithium batteries, the electrolyte cost accounts for about 5%-13% of the production cost of lithium batteries. Lithium hexafluorophosphate is the most important component of lithium battery electrolyte cost, accounting for about 43% of the total electrolyte cost. The labor skill threshold of lithium hexafluorophosphate is higher, especially the labor of high purity crystal lithium hexafluorophosphate. It can be said that lithium hexafluorophosphate, as a cutting-edge material in the lithium battery industry, is worthy of the soul of electrolyte. |
| market prospect | liquid electrolyte has maintained a high market share for a long time. At present, lithium ion electrolytes on the market are divided into liquid and polymer, with market shares of about 90% and 10% respectively. Liquid electrolyte has maintained a high proportion for a long time, and is also commonly known as electrolyte. Lithium salt is the most important component of electrolyte. Electrolytes are usually prepared by lithium salts, high-purity organic solvents and additives under certain conditions and in a certain proportion. Among them, the mass ratio of lithium salt to electrolyte is about 1:7, that is, 1 ton of lithium salt (taking lithium hexafluorophosphate as an example) can produce 7 tons of electrolyte. Common lithium salts include lithium hexafluorophosphate, lithium hexafluoroarsenate, lithium perchlorate, lithium tetrafluoroborate, lithium nitrogen difluoromethanesulfonate, LiCF3SO3, etc. Recent studies have proved that lithium bisoxalate borate and others can also be used for lithium salts in electrolytes. However, in terms of conductivity, cost, safety and environmental impact, lithium hexafluorophosphate is still the most commercialized lithium salt in the world, and its production and supply capacity, research and development level and price level To a large extent, it affects the development scale and profit level of the lithium battery industry. In the foreseeable future, no other material can replace the role of lithium hexafluorophosphate on lithium batteries. Lithium hexafluorophosphate is one of the important components in lithium ion battery electrolyte. Compared with LiBF4, LiAsF6, LiClO4 and other electrolytes, it has the most advantages in solubility, conductivity, safety and environmental protection in organic solvents, and has become the most widely used lithium salt electrolyte. Due to the high difficulty in the synthesis of lithium hexafluorophosphate, the entire production process involves high and low temperature, anhydrous and oxygen-free operation, high purity refining, and strong corrosion. It requires high equipment and operators, and the process is extremely difficult. my country is in hexafluorophosphate. The industrialization of lithium lags behind developed countries such as Japan. |
| toxicity | lithium hexafluorophosphate decomposes rapidly in the air due to the action of water vapor, releasing PF5 and producing white smoke. It has an erosive effect on the eyes, skin, and especially on the lungs. |
| use | lithium hexafluorophosphate (LiPF6) is an electrolyte material for lithium ion batteries, mainly used for lithium ion power batteries, lithium ion energy storage batteries and other daily use batteries, and is also an irreplaceable electrolyte for lithium ion batteries in the near and medium term. |
| Production method | Wet method This method is to dissolve lithium salt in anhydrous hydrofluoric acid to form LiF · HF solution, and then pass PF5 gas to react to produce lithium hexafluorophosphate crystal. The product is separated and dried. The process flow is as follows: Dry method This method is to treat LiF with anhydrous HF to form porous LiF, and then pass PF5 gas to react to obtain the product. Solvent method This method is to react lithium salt with alkali metal salt, ammonium salt or organic amine salt of fluorophosphoric acid in an organic solvent and crystallize to prepare lithium hexafluorophosphate products. |
Last Update：2024-04-10 22:29:15
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