WO2006115025A1 - リチウムイオン電池用電解液の製造方法及びそれを用いた電池 - Google Patents
リチウムイオン電池用電解液の製造方法及びそれを用いた電池 Download PDFInfo
- Publication number
- WO2006115025A1 WO2006115025A1 PCT/JP2006/307541 JP2006307541W WO2006115025A1 WO 2006115025 A1 WO2006115025 A1 WO 2006115025A1 JP 2006307541 W JP2006307541 W JP 2006307541W WO 2006115025 A1 WO2006115025 A1 WO 2006115025A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium
- electrolyte
- ion battery
- producing
- fluoride
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/005—Lithium hexafluorophosphate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a method for producing an electrolytic solution for a lithium ion battery containing lithium hexafluorophosphate as an electrolyte, and a lithium ion battery using the same.
- V which is highly hygroscopic, reacts phosphorus trichloride or pentachloride phosphorus directly with HF, so the moisture contained in these and the moisture absorbed from the air at the time of introduction enters and is added to the product.
- Fluoride is generated and mixed, and even if you try to use it as an electrolyte of a lithium ion battery, it will hydrolyze with a small amount of water in the electrolyte to produce an acidic substance, which damages the electrolyte and can not be used as an electrolyte for a lithium ion battery .
- Patent Document 4 There is also a method of reacting lithium fluoride and phosphorus pentafluoride in an organic solvent (Patent Document 4).
- phosphorous pentafluoride is a gas and requires a cylinder to handle, making phosphoric pentafluoride complex. Handling gas is dangerous and requires specialized knowledge.
- it is necessary to purify the phosphorus pentafluoride gas which uses the same force, with high purity, there is a problem that the cost is increased and the price is greatly affected.
- Non-patent Document 1 there is a method of reacting dissolved lithium fluoride with gaseous phosphorus pentafluoride using anhydrous hydrogen fluoride as a solvent.
- this method since anhydrous hydrogen fluoride having a high vapor pressure is used as a solvent, handling is difficult.
- Patent Document 1 Japanese Patent No. 64-72901
- Patent Document 2 Japanese Patent Laid-Open No. 10-72207
- Patent Document 3 Japanese Patent Laid-Open No. 10-81505
- Patent Document 4 Japanese Patent Laid-Open No. 9-165210
- Non-Patent Document 1 J. Chem. Soc. Part 4, 4408 (1963)
- the present invention is aimed at producing an electrolytic solution containing lithium hexafluorophosphate as an electrolyte, and directly producing an electrolytic solution in an organic solvent.
- lithium fluoride lithium chloride, lithium bromide, iodide
- a method for producing an electrolytic solution for a lithium ion battery characterized by reacting lithium or a mixture of any of these with phosphorus pentachloride and hydrogen fluoride.
- the reaction yield is high, the reaction can be easily controlled, and the product purity can be sufficiently satisfied. Since the solvent for the lithium battery is used as the solvent, the solution after the reaction can be used directly as the electrolytic solution, and a very simplified production method can be provided.
- the production method of the present invention has a high reaction yield, is easy to control the reaction, is sufficiently satisfactory in terms of product purity, and uses a solvent for a lithium ion battery. Therefore, the solvent after the reaction can be used directly as the electrolytic solution.
- the production method of the present invention is carried out in any one or several kinds of mixed solvents among the above non-aqueous organic solvents for lithium ion batteries.
- the raw materials such as lithium lithium, lithium chloride, lithium bromide, or lithium iodide, phosphorus pentachloride, and hydrogen fluoride are charged into these solvents, but the charging order is not particularly limited.
- the non-aqueous organic solvent to be used is preferably a carbonate ester compound or an ether compound having high chemical stability and high solubility of lithium hexafluorophosphate.
- Examples include ethylene carbonate, dimethylolene carbonate, jetinolecarbonate ethinoremethyl carbonate, and 1,2-dimethoxyethane.
- the temperature range for carrying out this reaction is 40 ° C to 100 ° C, preferably 0 ° C to 60 ° C. If the reaction temperature is less than 40 ° C, the reaction does not proceed because the solvent solidifies. On the other hand, when the temperature exceeds 100 ° C, the solvent scatters or the reaction between the solvent and phosphorus pentachloride occurs, which may cause coloring or increase in viscosity.
- the amount of lithium fluoride, lithium chloride, lithium bromide, lithium iodide, or a mixture of any of these is 600 g or less in total, preferably 400 g or less, per liter of solvent.
- Phosphorus is lOOOg or less, preferably 600 g or less.
- Lithium fluoride, lithium chloride, lithium bromide, lithium iodide in quantity When the amount exceeds 600 g relative to the solvent, the product becomes saturated, and the surface of lithium fluoride, lithium chloride, lithium bromide, lithium iodide A film is formed and unreacted lithium fluoride, lithium chloride, lithium bromide, lithium iodide, or a mixture of these remains, and the viscosity of the solution increases, making separation operations such as filtration difficult. Become.
- the amount of hydrogen fluoride is not limited, but is 450 g or less, preferably 350 g or less, per liter of solvent.
- the lower limit of the amount of raw materials such as lithium fluoride, lithium chloride, phosphorus pentachloride, hydrogen fluoride, etc., is 1 g per 1 liter of solvent. If it is less than lg with respect to the solvent, the battery electrolyte concentration will be low, and satisfactory performance will not be obtained as an electrolyte for lithium ion batteries, and if the electrolyte concentration is increased by concentration, the battery solvent will be wasted and it will be too expensive Because.
- the product lithium hexafluorophosphate is hydrolyzed by moisture. It is necessary to carry out the reaction in an atmosphere that does not contain moisture. That is, the reaction is preferably performed in a vacuum or an inert gas atmosphere such as nitrogen.
- the solution obtained as described above uses a solvent for a lithium ion battery as a solvent
- the solution obtained by the reaction can be used directly as an electrolyte for a lithium ion battery. is there.
- high purity lithium hexafluorophosphate can be obtained by precipitation and separation by operations such as cooling and concentration.
- a PTFE reaction vessel In a PTFE reaction vessel, 1 OOml of ethylmethyl carbonate solvent is cooled and maintained at 10 ° C, and 83.2 g of phosphorus pentachloride and 45. Og of hydrogen fluoride are bubbled through the inlet tube and added. A mixed reaction was performed. Further, while maintaining the solution at 10 ° C., a mixture of 5.2 g lithium fluoride and 8.8 g lithium chloride was added and further reacted.
- the concentration of acidic impurities in the solvent is lOppm, which is 70ppm in terms of lithium hexafluorophosphate.
- the ion conductivity of this solution was measured and found to be 7.8 mSZcm, which was equivalent to that obtained by dissolving lithium hexafluorophosphate in a mixed solvent of ethylene carbonate and jetyl carbonate.
- a test cell was prepared using this solution, and performance evaluation as an electrolytic solution was performed by a charge / discharge test. Specifically, 95 parts by weight of natural graphite powder was mixed with 5 parts by weight of poly (vinylidene fluoride) (PVDF) as a binder, and N, N-dimethylformamide was further added to form a slurry. This slurry was applied on a nickel mesh and dried at 150 ° C. for 12 hours to obtain a test negative electrode body. Also, black smoke is added to 85 parts by weight of lithium conoleate. 10 parts by weight of powder and 5 parts by weight of PVDF were mixed, and further N, N-dimethylformamide was added to form a slurry.
- PVDF poly (vinylidene fluoride)
- This slurry was applied on an aluminum foil and dried at 150 ° C. for 12 hours to obtain a test positive electrode body.
- the reaction solution of this example was used as an electrolyte, and a test cell was assembled using the negative electrode body and the positive electrode body.
- a constant current charge / discharge test was performed under the following conditions. Both charging and discharging were performed at a current density of 0.35 mAZcm 2 , charging was performed at 4.2 V, and discharging was performed up to 2.5 V, and changes in the discharge capacity were observed by repeating this charging and discharging cycle. As a result, the charge / discharge efficiency was almost 100%, and after 100 cycles of charge / discharge, the discharge capacity was completely unchanged.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Secondary Cells (AREA)
- Primary Cells (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/911,901 US8097360B2 (en) | 2005-04-19 | 2006-04-10 | Method for producing electrolyte solution for lithium ion battery and battery using same |
CN2006800082664A CN101142703B (zh) | 2005-04-19 | 2006-04-10 | 锂离子电池用电解液的制备方法以及使用该电解液的电池 |
EP06731488.0A EP1873861B1 (en) | 2005-04-19 | 2006-04-10 | Method for producing electrolyte solution for lithium ion battery and battery using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-120558 | 2005-04-19 | ||
JP2005120558A JP4810867B2 (ja) | 2005-04-19 | 2005-04-19 | リチウムイオン電池用電解液の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006115025A1 true WO2006115025A1 (ja) | 2006-11-02 |
Family
ID=37214650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307541 WO2006115025A1 (ja) | 2005-04-19 | 2006-04-10 | リチウムイオン電池用電解液の製造方法及びそれを用いた電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8097360B2 (ja) |
EP (1) | EP1873861B1 (ja) |
JP (1) | JP4810867B2 (ja) |
KR (1) | KR100917729B1 (ja) |
CN (1) | CN101142703B (ja) |
WO (1) | WO2006115025A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110097626A1 (en) * | 2008-08-08 | 2011-04-28 | Stella Chemifa Corporation | Process for production hexafluorophosphates |
US8383075B2 (en) | 2007-02-08 | 2013-02-26 | Stella Chemifa Corporation | Manufacturing method of hexafluorophosphate |
Families Citing this family (16)
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JP5254555B2 (ja) * | 2007-02-08 | 2013-08-07 | ステラケミファ株式会社 | 五フッ化リン及び六フッ化リン酸塩の製造方法 |
JP5307409B2 (ja) | 2007-08-16 | 2013-10-02 | ステラケミファ株式会社 | 五フッ化リン及び六フッ化リン酸塩の製造方法 |
JP2010042937A (ja) * | 2008-08-08 | 2010-02-25 | Stella Chemifa Corp | 五フッ化リン及び六フッ化リン酸塩の製造方法 |
WO2011105002A1 (ja) * | 2010-02-25 | 2011-09-01 | パナソニック株式会社 | リチウムイオン二次電池 |
JP5609283B2 (ja) * | 2010-06-08 | 2014-10-22 | セントラル硝子株式会社 | リチウムイオン電池用電解液の製造方法およびそれを用いたリチウムイオン電池 |
CN102275894A (zh) * | 2011-05-23 | 2011-12-14 | 中南大学 | 一种六氟磷酸锂的制备方法 |
KR20140054228A (ko) * | 2011-08-16 | 2014-05-08 | 솔베이(소시에떼아노님) | LiPO2F2 및 LiPF6을 포함하는 혼합물의 제조 방법 |
CN103213963B (zh) * | 2012-01-18 | 2016-02-24 | 彭国启 | 一种直接制备液态六氟磷酸锂的方法 |
CN103253643B (zh) * | 2013-03-25 | 2014-12-03 | 中山市华玮新能源科技有限公司 | 一种相转移催化法制备六氟磷酸锂的方法 |
WO2014196965A1 (en) * | 2013-06-04 | 2014-12-11 | The Ohio State University | Method of lithium iron arsenic superconductor preparation |
JP5824013B2 (ja) * | 2013-08-21 | 2015-11-25 | ステラケミファ株式会社 | 五フッ化リン及び六フッ化リン酸塩の製造方法 |
KR101749186B1 (ko) * | 2013-09-11 | 2017-07-03 | 삼성에스디아이 주식회사 | 리튬 전지용 전해질, 이를 포함하는 리튬 전지, 및 리튬 전지용 전해질의 제조방법 |
CN105593165B (zh) * | 2013-10-04 | 2019-01-04 | 关东电化工业株式会社 | 五氟化磷的精制方法 |
EP3165528B1 (en) * | 2014-07-02 | 2021-08-18 | Central Glass Co., Ltd. | Ionic complex, electrolyte for nonaqueous electrolyte battery, nonaqueous electrolyte battery and ionic complex synthesis method |
KR102036924B1 (ko) * | 2019-03-15 | 2019-10-25 | (주)후성 | 육불화인산알칼리금속염 제조방법, 육불화인산알칼리금속염, 육불화인산알칼리금속염 함유 전해농축액 제조방법, 및 이차전지 제조방법 |
KR20200132024A (ko) | 2019-05-15 | 2020-11-25 | 현대자동차주식회사 | 리튬인산철 기반 리튬이차전지용 전해액 및 이를 포함하는 리튬이차전지 |
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JPH0656413A (ja) * | 1992-08-10 | 1994-03-01 | Central Glass Co Ltd | 六フッ化リン酸塩の製造方法 |
JPH11171518A (ja) * | 1997-12-08 | 1999-06-29 | Central Glass Co Ltd | ヘキサフルオロリン酸リチウムの製造方法 |
JP2000082474A (ja) * | 1998-09-07 | 2000-03-21 | Central Glass Co Ltd | リチウム電池用電解液の製造方法 |
JP2000211907A (ja) * | 1998-12-31 | 2000-08-02 | Ulsan Chemical Co Ltd | 六フッ化リン酸リチウムの製造方法 |
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US3607020A (en) * | 1970-03-19 | 1971-09-21 | Foote Mineral Co | Preparation of lithium hexafluorophosphate |
JPS6472901A (en) | 1987-09-14 | 1989-03-17 | Central Glass Co Ltd | Production of lithium fluoride complex salt |
JP2987397B2 (ja) * | 1995-12-14 | 1999-12-06 | セントラル硝子株式会社 | ヘキサフルオロリン酸リチウムの製造方法 |
CA2193119C (en) * | 1995-12-14 | 2001-01-30 | Shouichi Tsujioka | Electrolytic solution for lithium cell and method for producing same |
JP2982950B2 (ja) * | 1996-03-11 | 1999-11-29 | セントラル硝子株式会社 | リチウム電池用電解液の製造方法及びリチウム電池 |
DE19625448A1 (de) * | 1996-06-26 | 1998-01-02 | Solvay Fluor & Derivate | Verfahren zur Herstellung von LiPF¶6¶ |
EP0816288B1 (de) | 1996-06-26 | 2000-01-26 | Solvay Fluor und Derivate GmbH | Herstellung von Lithiumhexafluormetallaten |
DE19805356C1 (de) * | 1998-02-12 | 1999-06-17 | Metallgesellschaft Ag | Verfahren zur Herstellung von reinem LiPF¶6¶ |
JP3798560B2 (ja) * | 1998-11-17 | 2006-07-19 | ステラケミファ株式会社 | 六フッ化リン酸リチウムの精製法 |
-
2005
- 2005-04-19 JP JP2005120558A patent/JP4810867B2/ja not_active Expired - Fee Related
-
2006
- 2006-04-10 EP EP06731488.0A patent/EP1873861B1/en active Active
- 2006-04-10 CN CN2006800082664A patent/CN101142703B/zh active Active
- 2006-04-10 KR KR1020077026323A patent/KR100917729B1/ko active IP Right Grant
- 2006-04-10 WO PCT/JP2006/307541 patent/WO2006115025A1/ja active Application Filing
- 2006-04-10 US US11/911,901 patent/US8097360B2/en active Active
Patent Citations (4)
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JPH0656413A (ja) * | 1992-08-10 | 1994-03-01 | Central Glass Co Ltd | 六フッ化リン酸塩の製造方法 |
JPH11171518A (ja) * | 1997-12-08 | 1999-06-29 | Central Glass Co Ltd | ヘキサフルオロリン酸リチウムの製造方法 |
JP2000082474A (ja) * | 1998-09-07 | 2000-03-21 | Central Glass Co Ltd | リチウム電池用電解液の製造方法 |
JP2000211907A (ja) * | 1998-12-31 | 2000-08-02 | Ulsan Chemical Co Ltd | 六フッ化リン酸リチウムの製造方法 |
Non-Patent Citations (1)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8383075B2 (en) | 2007-02-08 | 2013-02-26 | Stella Chemifa Corporation | Manufacturing method of hexafluorophosphate |
US20110097626A1 (en) * | 2008-08-08 | 2011-04-28 | Stella Chemifa Corporation | Process for production hexafluorophosphates |
US9059480B2 (en) * | 2008-08-08 | 2015-06-16 | Stella Chemifa Corporation | Process for production hexafluorophosphates |
Also Published As
Publication number | Publication date |
---|---|
JP4810867B2 (ja) | 2011-11-09 |
EP1873861B1 (en) | 2013-06-12 |
EP1873861A4 (en) | 2011-10-19 |
EP1873861A1 (en) | 2008-01-02 |
KR100917729B1 (ko) | 2009-09-15 |
CN101142703A (zh) | 2008-03-12 |
US20090081559A1 (en) | 2009-03-26 |
CN101142703B (zh) | 2011-09-21 |
JP2006302590A (ja) | 2006-11-02 |
KR20070118313A (ko) | 2007-12-14 |
US8097360B2 (en) | 2012-01-17 |
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