WO2012032471A1 - Verfahren zur herstellung von lösungsmittelgemischen mit geringem wassergehalt - Google Patents
Verfahren zur herstellung von lösungsmittelgemischen mit geringem wassergehalt Download PDFInfo
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- WO2012032471A1 WO2012032471A1 PCT/IB2011/053899 IB2011053899W WO2012032471A1 WO 2012032471 A1 WO2012032471 A1 WO 2012032471A1 IB 2011053899 W IB2011053899 W IB 2011053899W WO 2012032471 A1 WO2012032471 A1 WO 2012032471A1
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- compound
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- general formula
- molecular sieve
- lithium
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/165—Natural alumino-silicates, e.g. zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/14—Base exchange silicates, e.g. zeolites
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- 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
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- 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
- H01M10/0567—Liquid materials characterised by the additives
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- 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
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- 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
- H01M2300/0065—Solid electrolytes
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- 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 processes for the preparation of solvent mixtures containing
- (C) optionally at least one additive selected from aromatic compounds, sultones and exo-methylene-ethylene carbonates, organic phosphates and halogenated organic carbonates,
- R 1 , R 2 are identical or different and selected from C 1 -C 4 -alkyl
- R 3 selected from hydrogen and C 1 -C 4 -alkyl.
- the invention relates, in an alternative variant, to a process for the preparation of solvent mixtures in which the drying of the individual components (A), (B) and, if appropriate, (C) or of these components takes place before they are mixed. Accordingly, the invention also relates to processes for the preparation of solvent mixtures containing
- (C) optionally at least one additive selected from aromatic compounds, sultones and exo-methylene-ethylene carbonates, organic phosphates, melamine, urea, and halogenated organic carbonates,
- R 1 , R 2 are identical or different and selected from C 1 -C 4 -alkyl
- R 3 is selected from hydrogen and C 1 -C 4 -alkyl.
- the present invention relates to solvent mixtures containing
- (C) optionally at least one additive selected from aromatic compounds, sultones and exo-methylene-ethylene carbonates, organic phosphates and halogenated organic
- Accumulators for example lead-acid batteries and nickel-cadmium accumulators, have been known for many decades.
- a disadvantage of the known lead-acid batteries and nickel-cadmium storage batteries is the relatively low energy density and the memory effect, which reduces the rechargeability and thus the life of lead-acid batteries and nickel-cadmium storage batteries.
- lithium-ion batteries are used, which are often referred to as lithium-ion batteries. They can achieve higher energy densities than accumulators based on lead or relatively noble heavy metals.
- lithium-ion accumulators are referred to as lithium-ion batteries.
- solvent mixtures which comprise (A) at least one compound of the general formula (I),
- R 1 , R 2 are identical or different and selected from C 1 -C 4 -alkyl, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, preferably methyl or ethyl.
- R 3 is selected from C 1 -C 4 -alkyl, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, preferably methyl,
- compounds of the general formula (I) and compound (s) of the general formula (II a) and (II b) are present in a weight ratio of 1:10 to 10: 1, preferably 3: 1 to 1: 1.
- Preferred compounds of the general formula (I) are dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate and mixtures thereof, i. Mixtures of at least two of said compounds dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate.
- a solvent mixture prepared according to the invention contains two or more compounds of the general formula (I), for example diethyl carbonate and methyl ethyl carbonate.
- at least one compound of the general formula (IIa) is present in the solvent mixture prepared according to the invention, but no compound of the general formula (IIb).
- at least one compound of the general formula (IIb) is present in a solvent mixture prepared according to the invention, but no compound of the general formula (IIa).
- at least one compound of the general formula (IIa) and at least one compound of the general formula (IIb) are present in a solvent mixture prepared according to the invention.
- the proportions of water can be determined by various methods known per se. The Karl Fischer titration is particularly suitable, for example according to DIN 51777 or I-SO760: 1978.
- Solvent mixtures prepared according to the invention may contain further constituents, for example
- solvent mixture is used not only for salt-free solvent mixtures but also for solutions of lithium salts in solvent mixtures.
- Suitable aromatic compounds as an additive are biphenyl, cyclohexylbenzene and 1,4-dimethoxybenzene.
- Sultones can be unsubstituted or substituted.
- suitable sultones are butane sultone and propylene sultone, formula (III),
- sultones having at least one CC double bond per molecule.
- substituted sultones is 1-phenyl-1,3-butane sultone.
- exo-methylene-ethylene carbonates are, in particular, compounds of the general formula (IV). in which R 4 and R 5 may be different or the same and selected from Ci-Cio-alkyl and hydrogen. In a preferred embodiment, R 4 and R 5 are each equal to methyl.
- Halogenated, in particular fluorinated organic carbonates are non-cyclic or cyclic organic carbonates which have at least one halogen atom per molecule, preferably one or two halogen atoms per molecule.
- halogen atoms preference is given to chlorine and particularly preferably fluorine.
- fluoroethylene carbonate and difluoroethylene carbonate are examples:
- Organic phosphates are triesters of phosphoric acid with one or more organic alcohols, preferably with an organic alcohol.
- Suitable organic alcohols are, for example, alkanols, substituted or unsubstituted, and phenols, substituted or unsubstituted, in question.
- organic phosphates are tris- (chloroethyl) phosphate, tris (3-chloropropyl) phosphate, tris (2-isopropyl) phosphate, triphenyl phosphate, tricresyl phosphate, tris (II), O) '- dichloroisopropyl) phosphate , Tris (2-ethylhexyl) phosphate), resorcinol bis (diphenyl phosphate), mono-, bis- and
- Tris (isopropylphenyl) phosphate (“isopropylated triphenyl phosphate")
- bisphenol A diphenyl phosphate Organic phosphates can serve as flame retardants.
- Examples of other suitable flame retardants are melamine or urea.
- a total of zero to 30% by weight of additive (s) (C) is added, based on the total solvent mixture prepared according to the invention, preferably from 1 to 10% by weight.
- the process according to the invention for the preparation of solvent mixtures in one variant contains at least the following three steps:
- At least one lithium salt or component (C) is added.
- the process according to the invention for the preparation of solvent mixtures contains at least the following three steps:
- At least one of the components (A), (B) and, if appropriate, (C) is dried in each case individually via at least one ion exchanger or molecular sieve,
- not all components (A), (B) and optionally (C) have to be subjected to the drying step.
- the drying of one, several or all of these components must be carried out in such a way that the solvent mixture of these components and optionally the at least one lithium salt (D) after mixing has the water content according to the invention.
- step (i) The drying of individual components according to step (i) is carried out in a similar manner as the drying of the solvent mixture according to step (b).
- step (ii) the separation of the dried individual components of ion exchanger or molecular sieve according to step (ii) is carried out in a similar manner as the separation of the dried solvent mixture of ion exchanger or molecular sieve according to step (c).
- step (iii) the mixing of the individual components according to step (iii) is carried out in a similar manner as the mixing according to step (a).
- the mixing of the components (A), (B) and optionally (C) can be carried out at any temperatures.
- mixing is carried out at temperatures in the range of 10 to 100 ° C.
- the mixture is mixed at a temperature at least 1 ° C above the melting point of the highest melting component (A) or (B).
- the upper temperature limit for mixing is determined by the volatility of the most volatile component of the solvent mixture.
- the mixture is mixed at a temperature below the boiling point of the most volatile component of the solvent mixture. You can mix at any pressure, preferably normal pressure.
- the duration of the mixing can be selected, for example, in the range of 5 minutes to 24 hours.
- molecular sieves are preferably selected from natural and synthetic zeolites, which may be in the form of spheres (beads), powders or rods. Preference is given to molecular sieve 4A, more preferably molecular sieve 3A. Ion exchangers can be used as shaped articles, for example in the form of beads or rods, as a powder or as a column. Preference is given to moldings, in particular pearls.
- cationic ion exchangers are used.
- ion exchangers or molecular sieves are selected from at least partially lithiated ion exchangers or at least partially lithiated molecular sieves. At least partially lithiated ion exchangers are understood as meaning those cationic ion exchangers which as far as possible replace Li + and / or Na + or K + by Li +. In another embodiment of the present invention, ion exchangers or molecular sieves are used which do not (even partially) lithiate are.
- a solvent mixture from step (a) is mixed with molecular sieve or preferably ion exchanger and the molecular sieve or the ion exchanger is allowed to act on the solvent mixture, for example by stirring the suspension of molecular sieve or ion exchanger in the solvent mixture permanently or during certain intervals. Instead of stirring, you can also shake or pump over.
- the ion exchanger or molecular sieve is allowed to act on the solvent mixture by applying the solvent mixture to a column or filter surface which has ion exchangers or molecular sieves as the stationary phase, and then the solvent mixture can pass through the column or the filter, for example, driven by gravity or supported by pumps.
- ion exchanger or molecular sieve is allowed to act on solvent mixture in the absence of chemical drying agents.
- chemical drying agents are understood as meaning strongly acidic, alkaline or strongly reducing drying agents, in particular those selected from low molecular weight compounds, salts and elements.
- acidic drying agents are, for example, aluminum alkyls such as, for example, trimethylaluminum, furthermore phosphorus pentoxide and concentrated sulfuric acid.
- basic drying agents are, for example, potassium carbonate and Cah.
- Known reducing drying agents are, for example, elemental sodium, elemental potassium and sodium-potassium alloy.
- step (c) is carried out at a temperature in the range from 4 to 100.degree. C., preferably from 15 to 40.degree. C., particularly preferably from 20 to 30.degree.
- the exposure time is a few minutes, for example at least 5 minutes to several days, preferably a maximum of 24 hours, particularly preferably one to 6 hours.
- ion exchange or molecular sieve is employed as a column packed form.
- a linear flow rate flow rate / column cross section of the empty column
- step (c) one or more solvent mixtures may be withdrawn to follow the drying procedure by Karl Fischer titration.
- Violent stirring or shaking may result in partial breakdown of the molecular sieve or ion exchanger, which may give rise to problems with filtration.
- step (c) After the action of molecular sieve or ion exchanger on the solvent mixture, it is necessary to separate the molecular sieve or the ion exchanger.
- the separation in step (c) can be accomplished by distilling off or decanting off the solvent mixture or preferably by filtration.
- Step (c) is preferably carried out under an inert gas, for example under dried nitrogen or under dried argon. Instead of dried inert gas, however, step (c) can also be carried out under dried air.
- step (b) and step ( c) carried out simultaneously, which is also within the scope of the present invention.
- the pore diameter of the filter material is preferably adapted to the average particle diameter of molecular sieve or ion exchanger, if one has used molecular sieve or ion exchanger in the form of, for example, beads or rods.
- one or more components (C) can be added partially or completely only after step (c).
- At least one lithium salt (D) may be added and, preferably, dissolved.
- Suitable lithium salts (D) must have sufficient solubility in the solvent mixture prepared according to the invention, for example at least 1 g / l at room temperature.
- suitable lithium salts (D) are LiPF 6, LiBF 4, LiCI0 4, LiAsF 6, L1CF3SO3, LiC (C n F 2n + IS02) 3, Lithiumbisoxalatoborat, Lithiumdifluorbisoxalatoborat, Li thiumimide as LiN (C n F 2n + IS02) 2, where n is an integer in the range of 1 to 20,
- Preferred conducting salts are selected from LiC (CF 3 SO 2) 3, LiN (CF 3 SO 2) 2, LiPF 6 , LiBF 4 and LiClO 4 , and particularly preferred are LiPF 6 and LiN (CF 2 SO 2) 2.
- the solvent mixture may be heated and / or further acted to promote dissolution of lithium salt (D), such as shaking, stirring or pumping.
- lithium salt (D) in the range from 1 to 30% by weight of lithium salt (D), based on the total solvent mixture prepared according to the invention, 10 to 20% by weight are preferred.
- additives (C) after carrying out steps (a) to (c). However, this only makes sense if the additives in question do not increase the water content of the solvent mixture prepared according to the invention over a total of 30 ppm by weight.
- At least one further component (B) can be added beyond the component (s) (B) initially mixed with component (s) (A).
- Solvent mixtures prepared by the process according to the invention are very suitable in and for the production of lithium-ion batteries.
- a further subject of the present invention are solvent mixtures comprising (A) at least one compound of the general formula (I)
- (C) optionally at least one additive selected from aromatic compounds, sulphones, exo-methylene-ethylene carbonates, organic phosphates, melamine, urea and halogenated organic carbonates, in particular mono- or polyfluorinated organic carbonates,
- R 1 , R 2 are identical or different and selected from C 1 -C 4 -alkyl
- R 3 is selected from hydrogen and C 1 -C 4 -alkyl.
- Solvent mixtures according to the invention can advantageously be prepared by the process described above.
- solvent mixtures according to the invention contain no measurable amounts of protic organic compounds such as, for example, alcohols or primary or secondary amines.
- solvent mixtures according to the invention contain not more than 50 ppm by weight, preferably not more than 20 ppm by weight and more preferably not more than 10 ppm by weight of protic organic compounds. In one embodiment of the present invention contains solvent mixture according to the invention
- additive (s) (C) from zero to a total of 30% by weight of additive (s) (C), preferably from 1 to 10% by weight,
- compound of the general formula (I) is selected from dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate and mixtures thereof, i. Mixtures of at least two of said compounds dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate.
- the solvent mixture according to the invention contains at least one compound of the general formula (IIa) and at least one compound of the general formula (IIb).
- the solvent mixture comprises at least one lithium salt (D) selected from LiPF 6, LiBF 4 , LiN (CF 2 SO 2) 2, LiClO 4 , lithium bisoxalatoborate, lithium difluorooxalatoborate, LiAsF 6, LiN (FSO 2) 2, LiC (CF 2 SO 2) 3,
- D lithium salt
- LiN (C 2 F 5 S0 2 ) 2 preferred are LiPF 6 , LiBF 4 , LiN (CF 3 S0 2 ) 2 and lithium bisoxalatoborate (LiBOB).
- Lithium salt (D) can be added to the solvent mixture in concentrations of 0.1 M to 3 M, preferably 0.5 M to 1, 5 M added.
- Solvent mixtures according to the invention in one embodiment of the present invention contain in total less than 50 ppm by weight of decomposition products of compounds of general formula (I), (IIa) and / or (IIb), for example aliphatic Ci-C4-alkanols, ethylene glycol or compounds the general formula in which R 3 is defined as described above.
- Decomposition products such as aliphatic Ci-C4-alkanols, ethylene glycol or compounds of the above formula can be detected for example by gas chromatography.
- Solvent mixtures according to the invention in a preferred embodiment contain no measurable amounts of decomposition products of compound of general formula (I), (II a) and / or (II b).
- Solvent mixtures according to the invention can be used excellently in or for the production of lithium-ion batteries. Another object of the present invention is therefore the use of solvent mixtures according to the invention in or for the production of lithium-ion batteries. Another object of the present invention are lithium-ion batteries, containing a novel solvent mixture. Lithium-ion batteries according to the invention exhibit good cyclability and excellent stability. In lithium ion batteries, solvent mixtures according to the invention which contain at least one lithium salt (D) are used.
- Lithium-ion batteries according to the invention may contain, for example, one or more cathodes based on transition-metal mixed oxides, for example based on LiMnO 2, LiCoO 2, LiNiO 2, based on Lii + w (Ni a CObMni-ab) i-wO 2, where w can range from zero to 0.2, preferably to 0.1, a and b are selected from numbers in the range of zero to 1, where a + b ⁇ 1
- Cathodes based on transition metal mixed oxides can furthermore have, for example, carbon in an electrically conductive modification, for example as carbon black, graphite, graphene or as carbon nanotubes.
- Cathodes in batteries according to the invention may, for example, furthermore contain a binder, for example a polymeric binder.
- a binder for example a polymeric binder.
- Particularly suitable polymeric binders are polyvinylidene fluoride (PVdF), polytetrafluoroethylene, copolymers of tetrafluoroethylene and hexafluoropropylene, copolymers of tetrafluoroethylene and vinylidene fluoride and polyacrylonitrile.
- Lithium-ion batteries according to the invention may further comprise an anode of materials known per se, preferably essentially of graphite.
- Lithium-ion batteries according to the invention may further comprise customary components, for example one or more separators, one or more diversion plates (current conductors) and a housing.
- Lithium-ion batteries according to the invention can be selected in another embodiment of the present invention from so-called lithium-air batteries, ie batteries, which are based on the principle of reversible reaction of lithium with atmospheric oxygen to form an oxide or peroxide, ie to form U2O or L12O2.
- lithium-ion batteries can be selected from lithium-sulfur batteries, that is to say batteries which are based on the reaction of sulfur via polysulfide ions for S 2_ , which are reoxidized when the cell is charged. The invention will be explained by working examples.
- a filter HS1000 was activated by heating to 150 ° C at 10 bar for 1 14 hours 37 kg of molecular sieve 3A, zeolite based on aluminosilicate, pearl shape, average diameter 16 mm, commercially available as Sylobead® MS 564 C, on a filter the filter surface of a pressure filter chute.
- the mixture was stirred under dry argon at 25 ° C. in a stirred vessel connected to the pressure suction filter in a pump circulation system.
- the honey-like suspension was knife-coated onto aluminum foil and dried at 120 ° C. for 16 hours.
- the layer thickness of the dried cathode composition thus obtainable was 40 ⁇ m. By calendering the layer was compressed by 25% to 30 ⁇ . Subsequently, electrodes were cut out with a dimension of 50 mm ⁇ 50 mm, weighed, welded with an Al-Stromableiter and further dried in vacuo at 120 ° C.
- the determined active mass of the cathode was 225 mg.
- the dried electrodes from 1.2.1 were transferred to an argon-filled glove box, in which the following steps were carried out:
- the anode was placed with the coated side up on a heat-sealable PET / AI / PE composite film (NEFAB) and with about 500 ⁇ _ LGM.1 dripped.
- a 55 mm ⁇ 55 mm polyolefin separator (Celgard) was placed centered and wrinkle free on the electrolyte moistened anode and also dropped with LGM.1.
- the cathode was also dripped with LGM.1 and placed centrally with the coated side down on the separator.
- Lithium-ion battery LIB.1 according to the invention was obtained.
- LIB.1 was removed from the glove box and charged and discharged by means of a battery test system (MACCOR) at 25 ° C with the following settings (the capacity of the cell will be measured):
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020137009024A KR20130115249A (ko) | 2010-09-10 | 2011-09-06 | 함수량이 낮은 용매 혼합물의 제조 |
| CN2011800432813A CN103098284A (zh) | 2010-09-10 | 2011-09-06 | 生产具有低水含量的溶剂混合物 |
| EP11823143.0A EP2614550A4 (de) | 2010-09-10 | 2011-09-06 | Verfahren zur herstellung von lösungsmittelgemischen mit geringem wassergehalt |
| JP2013527721A JP2013541140A (ja) | 2010-09-10 | 2011-09-06 | 低含水量を有する溶媒混合物の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10176200 | 2010-09-10 | ||
| EP10176200.3 | 2010-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012032471A1 true WO2012032471A1 (de) | 2012-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2011/053899 Ceased WO2012032471A1 (de) | 2010-09-10 | 2011-09-06 | Verfahren zur herstellung von lösungsmittelgemischen mit geringem wassergehalt |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2614550A4 (de) |
| JP (1) | JP2013541140A (de) |
| KR (1) | KR20130115249A (de) |
| CN (1) | CN103098284A (de) |
| WO (1) | WO2012032471A1 (de) |
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| JP6925176B2 (ja) * | 2017-06-14 | 2021-08-25 | 三菱ケミカル株式会社 | 非水系電解液及び非水系電解液二次電池 |
| CN115414908B (zh) * | 2022-07-29 | 2024-03-15 | 化学与精细化工广东省实验室 | 一种锂离子电池电解液溶剂除水剂及其制备方法和应用 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0887875A1 (de) * | 1997-06-27 | 1998-12-30 | Mitsui Chemicals, Inc. | Nichtwässrige Elektrolytlösung und diese enthaltende Zeile mit nichtwässrige Elektrolyt |
| WO2007049888A1 (en) * | 2005-10-24 | 2007-05-03 | Lg Chem, Ltd. | Inhibitor of reduction of life cycle of redox shuttle additive and non-aqueous electrolyte and secondary battery comprising the same |
| CN101685880A (zh) * | 2008-09-25 | 2010-03-31 | 张家港市国泰华荣化工新材料有限公司 | 低温锂离子电池电解液的制备方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204162A (zh) * | 1997-06-27 | 1999-01-06 | 三井化学株式会社 | 非水电解溶液及含有该非水电解溶液的蓄电池 |
| DE19915056A1 (de) * | 1999-04-01 | 2000-10-05 | Riedel De Haen Gmbh | Verfahren zur Dehydratisierung Li-Ionen enthaltender Elektrolyte |
| EP2259375B1 (de) * | 2003-02-27 | 2012-05-16 | Mitsubishi Chemical Corporation | Nichtwässrige Elektrolytlösung und sekundäre Lithiumbatterie |
| CN102208681B (zh) * | 2004-04-20 | 2012-11-21 | 三菱化学株式会社 | 非水性电解液和使用该非水性电解液的锂二次电池 |
| JP4608932B2 (ja) * | 2004-04-20 | 2011-01-12 | 三菱化学株式会社 | 非水系電解液および非水系電解液二次電池 |
| CN101645521A (zh) * | 2009-01-20 | 2010-02-10 | 万向电动汽车有限公司 | 锂离子二次电池的低温功能电解液及其制备方法 |
-
2011
- 2011-09-06 EP EP11823143.0A patent/EP2614550A4/de not_active Withdrawn
- 2011-09-06 JP JP2013527721A patent/JP2013541140A/ja not_active Withdrawn
- 2011-09-06 CN CN2011800432813A patent/CN103098284A/zh active Pending
- 2011-09-06 WO PCT/IB2011/053899 patent/WO2012032471A1/de not_active Ceased
- 2011-09-06 KR KR1020137009024A patent/KR20130115249A/ko not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0887875A1 (de) * | 1997-06-27 | 1998-12-30 | Mitsui Chemicals, Inc. | Nichtwässrige Elektrolytlösung und diese enthaltende Zeile mit nichtwässrige Elektrolyt |
| WO2007049888A1 (en) * | 2005-10-24 | 2007-05-03 | Lg Chem, Ltd. | Inhibitor of reduction of life cycle of redox shuttle additive and non-aqueous electrolyte and secondary battery comprising the same |
| CN101685880A (zh) * | 2008-09-25 | 2010-03-31 | 张家港市国泰华荣化工新材料有限公司 | 低温锂离子电池电解液的制备方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2614550A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103098284A (zh) | 2013-05-08 |
| KR20130115249A (ko) | 2013-10-21 |
| EP2614550A1 (de) | 2013-07-17 |
| JP2013541140A (ja) | 2013-11-07 |
| EP2614550A4 (de) | 2014-03-19 |
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