EP4511357A1 - Procédé de préparation d'un sel de lithium fonctionnalisé - Google Patents
Procédé de préparation d'un sel de lithium fonctionnaliséInfo
- Publication number
- EP4511357A1 EP4511357A1 EP23725383.6A EP23725383A EP4511357A1 EP 4511357 A1 EP4511357 A1 EP 4511357A1 EP 23725383 A EP23725383 A EP 23725383A EP 4511357 A1 EP4511357 A1 EP 4511357A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- alkyl
- formula
- lithium salt
- optionally substituted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/48—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups having nitrogen atoms of sulfonamide groups further bound to another hetero atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/34—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfuric acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C307/00—Amides of sulfuric acids, i.e. compounds having singly-bound oxygen atoms of sulfate groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C307/02—Monoamides of sulfuric acids or esters thereof, e.g. sulfamic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/36—Amides or imides
- C08F222/40—Imides, e.g. cyclic imides
- C08F222/408—Imides, e.g. cyclic imides substituted imides comprising other heteroatoms
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
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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 a process for preparing a lithium salt.
- the present invention relates to a process for preparing a lithium salt carrying functional groups.
- Technological background of the invention Li-ion batteries are used as a power source in many devices such as mobile telephone devices, computers or electric vehicles. Most current batteries contain a liquid solution of an electrolyte consisting of a lithium salt in a solvent, the latter is generally highly flammable (for example carbonate type solvents. Other emerging technologies use an electrolyte under 15 form of gel which limits the content of flammable liquid without nevertheless being devoid of risk.
- lithium salts are marketed for this type of application in batteries. Mention may in particular be made of lithium perchlorate, lithium hexafluorophospahte, bis(trifluoromethanesulfonyl)imide and lithium bis(fluorosulfonyl)imide.
- Lithium sulfonyl imide salts are the most promising salts from a stability and conductivity point of view. New lithium salts suitable for new battery technologies have been evaluated. As such, the use of polymer materials containing lithium sulfonyl imides salt was considered.
- WO 2016/012670 which describes the preparation of conductive polymers of polyaryl ether ketone or polyether sulfone type containing lithium salts of grafted bis(sulfonyl)imides.
- the synthesis of this type of polymer is complex and requires numerous reaction steps, sometimes with more severe operating conditions. There is therefore a need for the preparation of new lithium salts of bis(sulfonyl)imide 30 following a simple procedure and resulting in good yields.
- the present invention aims to resolve at least partly the drawbacks of the prior art.
- the present invention provides a process for preparing a lithium A salt comprising a step a) of bringing a lithium B salt comprising at least one -S(O) 2 -F group into contact with a compound C of formula (I) RO-SiR 1 R 2 R 3 in the presence of a catalyst D to form a mixture of products comprising said lithium salt A comprising at least one -S(O) 2 -OR group; said catalyst D being a compound having a pKa greater than 11 measured at 25°C.
- the present invention makes it possible to prepare a functionalized lithium salt in gentle operating reactions with good yields and thus avoiding side reactions.
- the present process makes it possible to avoid the use of nucleophilic compounds such as alkoxides or amines which results in the dissociation of the sulfonyl imide structure.
- the present process makes it possible to substitute the fluorine atom carried by the sulfur atom of lithium salt B with an -OR functional group from compound C.
- Said lithium A salt thus formed comprises an -OR functional group linked to said atom of sulfur.
- the substituent R of said compound C comprises at least one carbon-carbon double bond.
- the presence of a carbon-carbon double bond will facilitate the preparation of a polymer containing the lithium salt.
- said lithium salt B is of formula LiN(S(O) 2 -F)(S(O) 2 R') and said lithium salt A is of formula (IV) LiN(S( O) 2 -OR)(S(O) 2 R') in which R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 - C4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt B comprises two -S(O) 2 - F groups to form a lithium salt A comprising two -S(O) 2 -OR groups.
- said lithium A salt comprises two -OR groups each comprising at least one carbon-carbon double bond allowing the facilitated formation of a polymer containing a lithium salt.
- said lithium salt B is Li-N(S(O) 2 -F) 2 and said lithium salt A is of formula (III) Li-N(S(O) 2 -OR) 2 .
- said compound C is of formula (I) RO-SiR 1 R 2 R 3 in which the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H and C 1 -C 10 alkyl.
- said compound C is of formula (I) RO-SiR 1 R 2 R 3 in which the group R is of formula R 4 -X-(Y) n - in which R 4 is a radical comprising at least one carbon-carbon double bond;
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl;
- Y is a group selected from the group consisting of -C(R 6 )(R 7 )-, -C(R 6 )(R 7 )C(R 6 )(R 7 )SC(R 6 )(R 7 ) - and -[(O) Z (C(R 8 )(R 9 )- C(R 8 )(R 9 )O) m -C(R 8 )(R 9 ) C(R 8 )(R 9 ) ]- with R 6 and R 7 independently selected for each carbon atom and for each Y unit among
- the R 4 group is of formula (la), (Ib), (le) or (Id): in which
- A, B and V are independently selected from the group consisting of
- W is selected from O and S
- R" is selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester.
- said catalyst D is selected from the group consisting of N,N-Diisopropylethylamine, 1,8-Diazabicyclo(5.4.0)undec-7-ene, 6-(Dibutylamino)-1,8-diazabicyclo [5.4.0]undec-7-ene, l,8-Diazabicyclo[5.4.0]undec-7-ene bound to polystyrene, l,5,7-Triazabicyclo[4.4.0]dec-5-ene, 7 -Methyl-l,5,7-triazabicyclo[4.4.0]dec-5-ene,
- said method also comprises a step b) of purifying said lithium A salt; said step b) comprising the extraction of said lithium A salt with a non-polar organic solvent.
- step a) is carried out at a temperature of 10 to 50°C.
- the present invention provides a lithium salt of formula (Illa), (Il Ib),
- said lithium salt is of formula (Illa), (I II b), (I Ile), (llld), (llle), (lllf), (Il Ig), (lllh), (llli), (lllj), (IVa), (IVb), (IVc) or (IVd) in which
- a and B are the same and are selected from the group consisting of H, F, Cl, Br and I;
- Y is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl optionally substituted by one or more R", C 2 -C 10 alkenyl optionally substituted by one or more substituents (s) R", C 3 -C 10 cycloalkyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C4-C 10 cycloalkenyl optionally substituted by one or more substituent(s) ) R" or one or more C 1 -C 5 alkyl, C 6 -C 12 aryl groups optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups with R" is selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester; preferably V is selected
- W is O
- X is O
- Y is a group selected from the group consisting of CH 2 CH 2 , CH 2 CF 2 , CF 2 CF 2 , CH 2 CHF, CF 2 CH 2 , CHFCH 2 , and n is an integer from 1 to 25;
- Y is a grouping -[(C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )]- with R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m is an integer from 1 to 25 and n is 1;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt is of formula (Illa), (I II b), (Il le), (llld), (llle), (Il If), (11 Ig), (I II h), (Il li), (lllj), (IVa), (IVb), (IVc) or (IVd) in which A and B are H, V is CH 3 , W is O, X is O and Y is a group selected from the group consisting of CH 2 CH 2 , CH 2 CF 2 , CF 2 CF 2 , CH 2 CHF, CF 2 CH 2 , CHFCH 2 , and n is an integer from 1 to 10; Or
- Y is a grouping -[(C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )]- with R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m is an integer from 1 to 25 and n is 1;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt is of formula (Ilia) in which A and B are H, V is CH 3 , W is O, X is O and Y is a group selected from the group consisting of CH 2 CH 2 , CH 2 CF 2 , CF 2 CF 2 , CH 2 CHF, CF 2 CH 2 , CHFCH 2 , and n is an integer from 1 to 10; Or
- Y is a grouping -[(C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )]- with R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m is an integer from 1 to 25 and n is 1.
- the present invention provides a polymer comprising monomeric units derived from at least one lithium salt of formula (Illa), (Il I b), (I Ile), (llld), (llle), ( Il If), (lllg), (lllh), (llli), (lllj), (IVa), (IVb), (IVc) or (IVd) according to the present invention.
- the present invention provides a binder for an electrode or coating for a separator comprising said polymer according to the present invention.
- the present invention provides an electrode or a separator comprising said polymer according to the present invention.
- the present invention provides a battery, preferably lithium-ion, comprising said electrode or said separator according to the present invention.
- a process for preparing a lithium A salt comprises a step of bringing a lithium salt B comprising at least one -S(O) 2 -F group into contact with a compound C of formula (I) RO-SiR 1 R 2 R 3 .
- Said lithium salt A is formed by an exchange reaction between the fluorine atom carried by the group — S(O) 2 - of said lithium salt B and the -OR group coming from compound C and carried by the atom of silicon thereof.
- Said lithium A salt thus formed comprises at least one -S(O) 2 - OR group.
- Said process according to the present invention also results in the formation of a co-product F-SiR 1 R 2 R 3 .
- the present process avoids the formation of HF (the fluorine atom bonding to the Si atom) during the reaction which would have required the neutralization of the latter by an excess of base or additional purification steps.
- HF the fluorine atom bonding to the Si atom
- the present invention makes it possible to prepare a functionalized lithium salt in gentle operating reactions with good yields and thus avoiding side reactions.
- said lithium salt B comprises at least one -S(O) 2 - F group.
- said lithium salt B has the formula LiN(S(O) 2 -F) (S(O) 2 R') in which R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 - C4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy ; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- the present process comprises a step of bringing LiN(S(O) 2 -F)(S(O) 2 R') into contact with a compound C of formula (I) RO-SiR x R 2 R 3 as defined in the present application, preferably in the presence of catalyst D as defined in the present application.
- said lithium B salt comprises two -S(O) 2 -F groups.
- said lithium salt B is Li-N(S(O) 2 -F) 2 , ie lithium bis(sulfonyl)imide also called LiFSI.
- the present process comprises a step of bringing Li-N(S(O) 2 -F) 2 into contact with a compound C of formula (I) RO-SiR 1 R 2 R 3 as defined in the present application, preferably in the presence of catalyst D as defined in the present application.
- said compound C has formula (I) RO-SiR 1 R 2 R 3 .
- said compound C is of formula (I) RO-SiR 1 R 2 R 3 in which the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl.
- the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, C 1 -C 1 5 alkyl, C 3 -C 1 5 cycloalkyl, C 6 -C 15 aryl.
- the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 6 -C 12 aryl.
- the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H and C 1 -C 10 alkyl. More particularly, the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, sec-butyl, pentyl.
- the groups R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, methyl, ethyl, propyl, tert-butyl.
- the groups R 1 and R 2 are identical and are selected from the group consisting of H, methyl, ethyl and the group R 3 is selected from the group consisting of H, methyl, ethyl, propyl, tert-butyl .
- the groups R 1 , R 2 and R 3 are identical and are selected from the group consisting of H, methyl, ethyl.
- the substituent R of said compound C comprises at least one carbon-carbon double bond.
- the presence of a carbon-carbon double bond will promote the preparation of a polymer containing the lithium salt.
- the group R of said compound C is of formula R -X-(Y) n - in which
- R 4 is a radical comprising at least one carbon-carbon double bond
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- Y is a group selected from the group consisting of -C(R 6 )(R 7 )-, - C(R 6 )(R 7 )C(R 6 )(R 7 )SC(R 6 )(R 7 ) - and -[(O) z (C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 ) ]- with
- R 6 and R 7 independently selected for each carbon atom and for each Y unit from H or F; R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m an integer from 1 to 50, advantageously from 1 to 40, preferably from 1 to 30, more preferably from 1 to 20, in particular from 1 to 10.
- z 0 if X is O;
- n is an integer from 1 to 50, advantageously from 1 to 40, preferably from 1 to 30, more preferably from 1 to 20, in particular from 1 to 10.
- the R 4 group is of formula (la), (Ib), (le) or (Id): in which
- A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 20 alkyl optionally substituted by one or more R", C 2 - C substituent(s) 20 alkenyl optionally substituted by one or more R "substituent(s), C 3 -C 20 cycloalkyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups, C 4 -C 20 cycloalkenyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups, C 6 -C 20 aryl optionally substituted by one or more R" substituent(s) or one or more C 1 groups -C 5 alkyl;
- W is selected from O and S, preferably O;
- R" is selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester.
- the R 4 group is of formula (la), (I b), (le) or (Id) as illustrated above in which A, B and V are independently one of the others selected from the group consisting of H, F, Cl, Br, I, C 1 -C 1 5 alkyl optionally substituted by one or more R", C 2 -C 15 alkenyl optionally substituted by one or more substituents (s) R", C 3 -C 15 cycloalkyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C 4 -C 15 cycloalkenyl optionally substituted by one or more substituents ( s) R" or one or more C 1 -C 5 alkyl, C 6 -C 15 aryl groups optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups;
- W is selected from O and S, preferably O;
- R" is selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester.
- the group R 4 is of formula (la), (Ib), (le) or (Id) as illustrated above in which A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl optionally substituted by one or more R", C 2 -C 10 alkenyl optionally substituted by one or more substituent(s) ) R", C 3 -C 10 cycloalkyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C 4 -C 10 cycloalkenyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl, C 6 -C 10 aryl groups optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups;
- W is selected from O and S, preferably O;
- R" is selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester.
- the R 4 group is of formula (la), (Ib), (le) or (Id) as illustrated above in which A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl, C 2 -C 10 alkenyl, C 3 -C 10 cycloalkyl, C 4 -C 10 cycloalkenyl, C 6 -C 10 aryl , C 1 -C 10 perfluoroalkyl, C 2 -C 10 perfluoroalkenyl, C 3 - C 10 perfluorocycloalkyl, C 4 -C 10 perfluorocycloalkenyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl ;
- W is selected from O and S, preferably O. More particularly, in said compound C, the R 4 group is of formula (la), (Ib), (le) or (Id) as illustrated above in which A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O.
- the group R 4 is of formula (la), (Ib), (le) or (Id) as illustrated above in which A and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl; and V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C6R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O.
- the R 4 group is of formula (la), (Ib), (le) or (Id) as illustrated above in which
- a and B are the same and are selected from the group consisting of H, F, Cl, I, Br; Or
- A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl.
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- W is selected from O and S, preferably O.
- said compound C can be of formula (la), (Ib), (le) or (Id)
- said compound C can be of formula (la), (Ib), (le) or (Id) in which
- R 1 , R 2 and R 3 are independently selected from the group consisting of H, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C6-C 20 aryl; advantageously R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, C 1 -C 15 alkyl, C 3 -C 15 cycloalkyl, C 6 -C 15 aryl; preferably R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, C 6 -C 12 aryl; more preferably R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H and C 1 -C 10 alkyl; in particular R 1 , R 2 and R 3 are independently of each other selected from the group consisting of H, methyl, ethyl, propyl, isopropyl, butyl, iso
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl;
- A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 20 alkyl optionally substituted by one or more R", C 2 - C substituent(s) 20 alkenyl optionally substituted by one or more R "substituent(s), C 3 -C 20 cycloalkyl optionally substituted by one or more R" substituent(s) or one or more groups C 1 -C 5 alkyl, C 4 -C 20 cycloalkenyl optionally substituted by one or more R"substituent(s) or one or more C 1 -C 5 alkyl groups, C 6 -C 20 aryl optionally substituted by one or more substituents (s) R" or one or more C 1 -C 5 alkyl groups with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 - C 4 thioether, C
- V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl optionally substituted by one or more R", C 2 -C 10 optionally substituted alkenyl by one or more substituent(s) R", C 3 -C 10 cycloalkyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C 4 -C 10 cycloalkenyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C 6 -C 10 aryl groups optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C
- V are independently selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 s with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O.
- said compound C can be of formula (la), (Ib), (le) or (Id)
- R 1 and R 2 are identical and are selected from the group consisting of H, methyl, ethyl and R 3 is selected from the group consisting of H, methyl, ethyl, propyl, tert-butyl; preferably, R 1 , R 2 and R 3 are identical and are selected from the group consisting of H, methyl, ethyl; X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- a and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl; preferably A and B are identical and are selected from the group consisting of H, F, Cl, I, Br or A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl;
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- said lithium A salt comprises at least one -S(0)2-0R group.
- said lithium salt A comprises two -S(0)2-0R groups when said lithium salt B comprises two -S(0)2-F groups.
- said lithium A salt comprises two -OR groups each comprising at least one carbon-carbon double bond allowing the facilitated formation of a polymer containing a lithium salt.
- said lithium salt A is of formula (III) Li-N(S(O)2-OR)2 with R of formula R 4 -X-(Y) n - in which R 4 is a radical comprising at least one carbon-carbon double bond;
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- Y is a group selected from the group consisting of -C(R 6 )(R 7 )-, C(R 6 )(R 7 )C(R 6 )(R 7 )SC(R 6 )(R 7 )- and -[(O) z (C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )] - with R 6 and R 7 independently
- lithium salt A is of formula (III) Li-N(S(O) 2 -OR) 2
- the substituents R are selected independently of each other for each of the functional groups S(O) 2 - GOLD.
- said lithium A salt has the formula (Illa), (Illb), (11 le),
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is
- A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 20 alkyl optionally substituted by one or more R", C 2 - C substituent(s) 20 alkenyl optionally substituted by one or more R", C 3 -C 20 cycloalkyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C4-C 20 cycloalkenyl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C 5 alkyl, C6-C 20 aryl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C groups 5 alkyl with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thio
- V are independently selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O.
- said lithium salt A is of formula (Illa), (III b), (Il le), (Il Id), (I Ile), (Il If), (Illg), (Il Ih), ( llli) or (lllj) in which
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- a and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl; preferably A and B are identical and are selected from the group consisting of H, F, Cl, I, Br or A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl;
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- W is selected from O and S, preferably O.
- said lithium salt A is of formula (Illa), (I II b), (Il le) or (llld) as defined above.
- said lithium salt A is of formula (IV) LiN(S(O) 2 -OR)(S(O) 2 R') when said lithium salt B is of formula LiN(S(O) 2 -F )(S(O) 2 R').
- Said lithium salt A is of formula (IV) LiN(S(O) 2 -OR)(S(O) 2 R') in which R' is a substituent selected from the group consisting in F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy and R is as defined above in the present application.
- said lithium salt A has formula (IV) LiN(S(O) 2 -OR)(S(O) 2 R') in which
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy;
- R is of formula R 4 -X-(Y) n - in which R 4 is a radical comprising at least one carbon-carbon double bond;
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- Y is a group selected from the group consisting of -C(R 6 )(R 7 )-, C(R 6 )(R 7 )C(R 6 )(R 7 )SC(R 6 )(R 7 )- and -[(O) z (C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )] - with R 6 and R 7 independently selected for each carbon atom and for each Y unit among H or F; R 8 and R 9 independently selected
- said lithium A salt is of formula (IVa), (IVb), (IVc) or (IVd)
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl;
- A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 20 alkyl optionally substituted by one or more R", C 2 - C substituent(s) 20 alkenyl optionally substituted by one or more R", C 3 -C 20 cycloalkyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C4-C 20 cycloalkenyl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C 5 alkyl, C6-C 20 aryl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C groups 5 alkyl with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thio
- V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl optionally substituted by one or more R", C 2 -C 10 optionally substituted alkenyl by one or more R", C 3 -C 10 cycloalkyl groups optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C4-C 10 cycloalkenyl groups optionally substituted by a or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C 6 -C 10 aryl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C 1 -C
- V are independently selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium A salt is of formula (IVa), (IVb), (IVc) or (IVd) in which
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl; preferably R 5 is H, CH 3 or C 2 H 5 ;
- Y is a group selected from the group consisting of -C(R 6 )(R 7 )-, - C(R 6 )(R 7 )C(R 6 )(R 7 )SC(R 6 )(R 7 ) - and -[(O) z (C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 ) ]- with R 6 and R 7 independently selected for each carbon atom and for each Y unit among H or F; R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 ; m an integer from 1 to 50, advantageously from 1 to 40
- a and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl; preferably A and B are identical and are selected from the group consisting of H, F, Cl, I, Br or A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF 3 , C 2 F 5 , phenyl;
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- W is selected from O and S, preferably O;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- Said process for preparing said lithium salt A is carried out in the presence of a catalyst D.
- said catalyst D is a non-nucleophilic compound.
- the use of a non-nucleophilic compound makes it possible to avoid the degradation of said lithium B salt.
- said catalyst D is a compound having a pKa greater than 11 measured at 25°C in water. According to a particular embodiment, said catalyst D has a pKa greater than 11.5, advantageously greater than 12.0, preferably greater than 12.5, in particular greater than 13.0.
- the molar ratio of the catalyst relative to said lithium salt B is greater than or equal to 0.1, preferably greater than or equal to 0.2.
- the molar ratio of the catalyst relative to said lithium salt B is less than or equal to 2.5, preferably less than or equal to 2.
- said catalyst D is selected from the group consisting of N,N-Diisopropylethylamine, 1,8-Diazabicyclo(5.4.0)undec-7-ene, 6-(Dibutylamino)-1,8-diazabicyclo [5.4.0]undec-7-ene, l,8-Diazabicyclo[5.4.0]undec-7-ene bound to polystyrene, l,5,7-Triazabicyclo[4.4.0]dec-5-ene, 7 -Methyl-l,5,7-triazabicyclo[4.4.0]dec-5-ene, 1,1,3,3-Tetramethylguanidine, 2-tert-Butyl-l,l,3,3-tetramethylguanidine, 1,5 ,7- Triazabicyclo[4.4.0]dec-5-ene linked to polystyrene, 1,4-Diazabicyclo[2.2.2]octane, Quinuclidine
- said catalyst D is selected from the group consisting of 1,8-Diazabicyclo(5.4.0)undec-7-ene, 1,5,7-Triazabicyclo[4.4.0]dec-5-ene, 2-tert -butyl-l, 1,3,3- tetramethylguanidine, ,5,7-Triazabicyclo[4.4.0]dec-5-ene linked to polystyrene and 1,8- Diazabicyclo[5.4.0]undec-7-ene linked to polystyrene.
- Step a) of the process is preferably carried out in a reactor made of a material such as Inconel®, Hastelloy®, Monel®.
- said process is carried out at a temperature of 10 to 70°C, advantageously from 10°C to 50°C, preferably at a temperature of 10°C to 30°C.
- Said process can be carried out at a pressure of 0.5 to 3 bara, preferably at atmospheric pressure; even if the pressure is not an important parameter in the implementation of the process.
- step a) said lithium salt B is brought into contact with said catalyst D followed by the addition of said compound C. This makes it possible to improve the conversion of the reaction between the lithium salt and the compound vs.
- the reaction between lithium salt B and compound C is preferably carried out stoichiometrically or in slight excess or deficiency of compound C.
- said lithium salt B comprises two S(0)2 groups -F, 2 eq. of compound C relative to the number of moles of lithium salt B are added.
- Said process can be carried out in the presence of a solvent even if the process can be carried out without a solvent.
- a solvent can be for example acetonitrile, benzonitrile, dimethylsulfoxide, dimethyl formamide, 1,4 dioxane, nitromethane, dimethyl carbonate, diethyl carbonate, propyl carbonate, ethylene carbonate, N-methyl-2-pyrrolidone or a mixture of these.
- said product mixture may include said unreacted lithium salt B or said unreacted compound C or a mixture of both.
- Said mixture of products may also comprise F-SiR 1 R 2 R 3 with R 1 , R 2 and R 3 as defined in the present application.
- R 1 , R 2 and R 3 are CH 3
- said mixture of products may also include a compound in which only one of the fluorine atoms has been substituted.
- said lithium salt B is LiN(S(O)2-F)2
- said mixture of products may comprise LiN(S(O)2F)(S(O)2-OR).
- Said lithium salt B may optionally contain impurities linked to its preparation process, such as LiCI, LiF or FSO 3 Li in a mass content of less than 1000 ppm, advantageously less than 500 ppm, preferably less than 100 ppm based on the total weight of said lithium salt.
- FSO 3 Li if present, represents a mass content of less than 5 ppm based on the total weight of said lithium B salt.
- Other impurities may also be present in said lithium B salt as described in the document WO 2018/104674. These impurities may optionally be present in said lithium salt A in a content less than or equal to that mentioned for said lithium salt B.
- said method also comprises a step b) of purifying said mixture of products obtained in step a) to isolate said lithium salt A. If step a) was carried out in the presence of a solvent, this is preferably evaporated before carrying out step b).
- Said step b) comprises in particular a step extraction of said lithium A salt with a non-polar organic solvent.
- Said apolar organic solvent is for example a C 5 -C 10 alkyl, C 5 -C 10 cycloalkyl, C 6 -C 10 aryl, C 1 -C 3 haloalkyl, diethyl ether, 1,4-dioxane, tetrahydrofuran or a mixture of these.
- said apolar organic solvent is n-hexane, pentane, heptane, cyclohexane, cyclopentane, benzene, toluene, xylene, cumene, CCI 4 , CHCl 3 , diethyl ether, 1,4-dioxane, tetrahydrofuran or a mixture of these this.
- step b) makes it possible to obtain said lithium A salt with very high purity.
- the mixture obtained in step b) and comprising said lithium salt and said apolar solvent is distilled to eliminate the apolar solvent and recovered said lithium salt A.
- the implementation of step b) makes it possible to achieve a composition comprising at least 95% by weight, preferably at least 98% by weight, in particular at least 99% by weight, more particularly at least 99.5% of lithium A salt based on the total weight of the composition.
- Said composition may comprise less than 1%, preferably less than 0.5% by weight of additional compounds selected from the group consisting of said compound C, said compound B and F-SiR 1 R 2 R 3 with R 1 , R 2 , R 3 as defined in this application.
- said composition may comprise less than 1%, preferably less than 0.5% by weight of additional compounds selected from the group consisting of said compound C, said compound B, F-SiR 1 R 2 R 3 and Li N(S(O) 2 F)(S(O) 2 -OR) with R, R 1 , R 2 , R 3 as defined in the present application .
- a lithium salt is provided.
- said lithium salt is of formula (Ilia), (lllb), (lllc), (llld), (llle), (lllf), (lllg),
- X is a heteroatom selected from the group consisting of O, S and N(R 5 ) in which R 5 is H or C 1 -C 10 alkyl;
- A, B and V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 20 alkyl optionally substituted by one or more R", C 2 - C substituent(s) 20 alkenyl optionally substituted by one or more R", C 3 -C 20 cycloalkyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C4-C 20 cycloalkenyl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C 5 alkyl, C6-C 20 aryl groups optionally substituted by one or more R"substituent(s) or one or more C 1 -C groups 5 alkyl with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thio
- V are independently of each other selected from the group consisting of H, F, Cl, Br, I, C 1 -C 10 alkyl optionally substituted by one or more R", C 2 -C 10 optionally substituted alkenyl by one or more substituent(s) R", C 3 -C 10 cycloalkyl optionally substituted by one or more substituent(s) R" or one or more C 1 -C 5 alkyl groups, C 4 -C 10 cycloalkenyl optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl, C 6 -C 10 aryl groups optionally substituted by one or more R" substituent(s) or one or more C 1 -C 5 alkyl groups with R" selected from the group consisting of F, Cl, I, Br, C 1 -C 4 ether, C 1 -C 4 ester, C 1 -C 4 thioether, C 1 -C 4 thioester, preferably F, C
- V are independently selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 -C 5 alkyl;
- W is selected from O and S, preferably O;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt is of formula (Illa), (I II b), (I Ile), (IIId), (I Ile), (Il If), (Il Ig), (I llh), ( llli), (lllj), (IVa), (IVb), (IVc) or (IVd) in which
- a and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl; preferably A and B are identical and are selected from the group consisting of H, F, Cl, I, Br or A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl;
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- W is selected from O and S, preferably O
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt has the formula (Illa), (I II b), (I Ile), (Il Id), (Il le), (I I If), (Il Ig), (I llh), (llli), (lllj), (IVa), (IVb), (IVc) or (IVd) in which
- a and B are independently of each other selected from the group consisting of H, F, Cl, I, Br, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl; preferably A and B are identical and are selected from the group consisting of H, F, Cl, I, Br or A is H and B is selected from the group consisting of F, Cl, Br, I, CH 3 , C 2 H 5 , CF3, C 2 F 5 , phenyl;
- V is selected from the group consisting of H, F, Cl, Br, I, C 1 -C 5 alkyl, C 1 -C 5 perfluoroalkyl, C 6 R 10 5 with R 10 independently selected from H, F, C 1 - C 5 alkyl;
- W is O
- Y is a group selected from the group consisting of CH2CH2, CH2CF2, CF2CF2, CH2CHF, CF 2 CH 2 , CHFCH 2 , and n is an integer from 1 to 25;
- Y is a grouping -[(C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )]- with R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m is an integer from 1 to 25 and n is 1;
- R' is a substituent selected from the group consisting of F, C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy; preferably C 1 -C 4 alkyl, C 1 -C 4 perfluoroalkyl, C 1 -C 4 alkoxy, C 1 -C 4 perfluoroalkoxy.
- said lithium salt has formula (Ilia) in which
- a and B are H
- Y is CH 3 OR H
- Y is a grouping -[(C(R 8 )(R 9 )-C(R 8 )(R 9 )O) m -C(R 8 )(R 9 )C(R 8 )(R 9 )]- with R 8 and R 9 independently selected for each carbon atom and for each Y unit from H, F or CH 3 , m is an integer from 1 to 25 and n is 1.
- a polymer comprises monomeric units derived from at least one of the lithium salts according to the present invention, that is to say according to any one of the formulas (IlIa), (lllb), (lllc), (llld) , (llle), (lllf), (lllg), (lllh), (llli), (lllj), (IVa), (IVb), (IVc) or (IVd).
- Said polymer may comprise monomeric units derived from one of the lithium salts according to the present invention or monomeric units derived from several of these salts. Said lithium salts can polymerize via their vinyl function.
- Said heterocycle can be monocyclic or bicyclic.
- Said heterocycle may be a pyrrole, pyrrolidine, pyridine, piperidine, pyrimidine, pyrazine, 1,4-dihydropyridine, indole, oxindole, isatin, quinoline, isoquinoline, quinazoline, imidazoline, pyrazolidine, 2-pyrrolidone, deltalactam, succinimide, 2- ring. imidazolidinone, 4-imidazolidinone.
- Said heterocycle may be substituted by one or more C 1 -C 5 alkyl groups. As mentioned above, the C 1 -C 18 alkyl is optionally substituted by said heterocycle.
- the latter can be linked to the alkyl chain by the nitrogen atom or any other atoms forming the heterocycle.
- the heterocycle is 2-pyrrolidone, delta-lactam, succinimide, 2-imidazolidinone, 4-imidazolidinone.
- the substituent R' is selected from the group consisting of H, methyl, ethyl, propyl, n-butyl, isobutyl, t-butyl, n-dodecyl, amyl, isoamyl, hexyl, 2-ethylhexyl, lauryl, n-octyl, hydroxybutyl, hydroxypropyl, ethyl substituted with a ureido group, hydroxy ethyl, hydroxy propyl, hydroxy butyl.
- said monomer M2 is selected from the group consisting of vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, tetrafluoroethylene, hexafluoropropylene, tetrafluoropropene, chlorotrifluoropropene.
- Said polymer may also comprise monomeric units derived from an M3 monomer selected from the group consisting of fumaric acid, crotonic acid, itaconic acid and the like; vinyl ester compounds such as vinyl acetate, vinyl neodecanoate and the like; amide compounds such as acrylamide, methacrylamide, N-methylacrylamide, N-methylmethacrylamide, N-methylolacrylamide, N-methylolmethacrylamide, N-alkylacrylamide, N-alkylmethacrylamide, N,N-dialkylacrylamide, N,N-dialkylmethacrylamide, diacetone acrylamide and the like; N-dialkylaminoethyl acrylate, glycidyl acrylate, n-dodecyl acrylate, fluoroalkyl acrylate and the like; dialkylaminoethyl methacrylate, fluoroalkyl methacrylate, glycidyl methacrylate, ethylene
- the present invention provides an electrode composition comprising said polymer according to the present invention, an active material and optionally a conductive agent.
- the electrode composition has the following mass composition: a. 50% to 99.9% active material, preferably 50% to 99%, b. 25% to 0% conductive agent, preferably 25% to 0.5%, c. 25% to 0.05% of said binder according to the invention, preferably 25% to 0.5%, d. 0% to 5% of at least one additive chosen from the group consisting of a plasticizer, an ionic liquid, a dispersing agent for a conductive additive, and an auxiliary flow agent; the sum of all these percentages being 100%.
- the conductive agents in the electrode are composed of one or more materials that can improve conductivity.
- Some examples include carbon blacks such as acetylene black, Ketjen black; carbon fibers, such as carbon nanotube, carbon nanofiber, vapor phase growth carbon fiber; metal powders such as SUS powder, and aluminum powder.
- the active materials in the electrode compositions are materials that are capable of storing and releasing lithium ions.
- said electrode is a negative electrode.
- said active material is chosen from the group consisting of a lithium alloy, lithium metal, a metal oxide, a carbon material such as graphite or hard carbon, silicon, silicone, an alloy of silicon and Li 4 TiO 12 -
- the shape of the negative electrode active material is not particularly limited but is preferably particulate.
- said electrode is a positive electrode.
- the shape of the positive electrode active material is not particularly limited but is preferably particulate. Additionally, the surface of each of the materials described above can be coated.
- the coating material is not particularly limited as long as it has lithium ion conductivity and contains a material capable of being maintained as a coating layer on the surface of the active material. Examples of the coating material include LiNbO 3 , Li 4 Ti 5 O 12 , and Li 3 PO 4 .
- a Li-ion battery comprises a positive electrode, a negative electrode and a separator, at least one electrode being an electrode according to the present invention.
- said polymer according to the present invention can be used as a coating in a separator placed between two electrodes.
- Said separator according to the present invention comprises a coating comprising, preferably consisting of, the polymer according to the present invention, optionally placed on one or both faces of a porous support.
- the coating is used to coat the support of a separator, on at least one side, in the form of a single layer or multilayers.
- the support which is coated with the coating of the invention is a porous substrate having pores.
- porous substrates useful in the invention as a support include, but are not limited to: polyolefins, polyethylene terephthalate, polybutylene terephthalate, polyester, polyacetal, polyamide, polycarbonate, polyimide, polyetheretherketone , polyether sulfone, poly(phenylene oxide), poly(phenylene sulfide), polyethylene naphthalene or mixtures thereof.
- other heat-resistant engineering plastics may be used without particular limitation.
- Non-woven materials made from natural and synthetic materials can also be used as the separator substrate.
- the porous substrate generally has a thickness of 1 to 50 ⁇ m, and are typically membranes obtained by extrusion and stretching (wet or dry process) or cast from nonwovens.
- the porous substrate preferably has a porosity of between 5% and 95%.
- the average pore size (diameter) is preferably between 0.001 and 50 ⁇ m, more preferably between 0.01 and 10 ⁇ m.
- the support can also be aluminum or aluminum coated with a polymer layer.
- the separator coating may contain inorganic particles which serve to form micropores in the coating (the interstices between inorganic particles). The addition of inorganic particles can also contribute to heat resistance or improve wettability.
- said coating comprises from 50 to 99 weight percent of inorganic particles, relative to the weight of the coating. These inorganic particles must be electrochemically stable (not subject to oxidation and/or reduction in the range of voltages used).
- powdery inorganic materials preferably have high ionic conductivity. Low density materials are preferred over higher density materials because the weight of the battery produced can be reduced.
- the dielectric constant is preferably equal to or greater than 5.
- said inorganic particles are chosen from the group consisting of: BaTiO3, Pb(Zr,Ti)03, Pb 1-x LaxZryO3 (0 ⁇ x ⁇ l , 0 ⁇ y ⁇ l), PBMg3Nb2/3)3,PbTiO3, hafnia (HfO (HfO2), SrTiO 3, SnO2, CeO2, MgO, NiO, CaO, ZnO, Y2O3, bohemite (y-AIO(OH)), AI2O3, TiO2, SiC, ZrO2, boron silicate, BaSO4, nano-clays, or mixtures thereof.
- the separator coating may optionally comprise 0 to 15 wt.% based on polymer, and preferably 0.1 to 10 % by weight of additives, chosen from thickeners, pH adjustment agents, anti-sedimentation agents, surfactants, wetting agents, fillers, anti-foaming agents and fugitive or non-fugitive adhesion promoters.
- additives chosen from thickeners, pH adjustment agents, anti-sedimentation agents, surfactants, wetting agents, fillers, anti-foaming agents and fugitive or non-fugitive adhesion promoters.
- the fillers mentioned here in the additives are different from the inorganic particles mentioned above.
- a Li-ion battery comprises a positive electrode, a negative electrode and said separator according to the present invention.
- Example 1 is reproduced with a quantity of 0.17 ml of 1,8-Diazabicyclo(5.4.0)undec-7-ene
- Example 1 is reproduced with a quantity of 0.17 ml of l,8-Diazabicyclo(5.4.0)undec-7-ene (0.2eq. relative to LiFSI), and 1 molar equivalent of p-(Trimethylsilyloxy ) Styrene and 1 molar equivalent of 2-(Trimethoxysilyl)ethyl methacrylate.
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2203585A FR3134576B1 (fr) | 2022-04-19 | 2022-04-19 | Procédé de préparation d’un sel de lithium fonctionnalisé |
| PCT/FR2023/050550 WO2023203297A1 (fr) | 2022-04-19 | 2023-04-18 | Procédé de préparation d'un sel de lithium fonctionnalisé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4511357A1 true EP4511357A1 (fr) | 2025-02-26 |
Family
ID=82385251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23725383.6A Pending EP4511357A1 (fr) | 2022-04-19 | 2023-04-18 | Procédé de préparation d'un sel de lithium fonctionnalisé |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250282718A1 (fr) |
| EP (1) | EP4511357A1 (fr) |
| JP (1) | JP2025513355A (fr) |
| KR (1) | KR20250005314A (fr) |
| CN (1) | CN119053583A (fr) |
| FR (1) | FR3134576B1 (fr) |
| WO (1) | WO2023203297A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3024146B1 (fr) | 2014-07-23 | 2018-02-16 | Cdp Innovation | Nouveaux polymeres contenant des sels de lithium ou de sodium de bis(sulfonyl)imides greffes, leurs procedes de preparation et leurs utilisations comme electrolytes pour batteries |
| JP6366550B2 (ja) * | 2015-08-24 | 2018-08-01 | 信越化学工業株式会社 | 導電性ポリマー用高分子化合物及びその製造方法 |
| JP6651965B2 (ja) * | 2016-04-14 | 2020-02-19 | 信越化学工業株式会社 | 単量体、高分子化合物、レジスト組成物及びパターン形成方法 |
| FR3059993A1 (fr) | 2016-12-08 | 2018-06-15 | Arkema France | Procede de sechage et de purification du sel de lithium de bis(fluorosulfonyl)imide |
-
2022
- 2022-04-19 FR FR2203585A patent/FR3134576B1/fr active Active
-
2023
- 2023-04-18 WO PCT/FR2023/050550 patent/WO2023203297A1/fr not_active Ceased
- 2023-04-18 US US18/857,911 patent/US20250282718A1/en active Pending
- 2023-04-18 KR KR1020247038153A patent/KR20250005314A/ko active Pending
- 2023-04-18 JP JP2024561836A patent/JP2025513355A/ja active Pending
- 2023-04-18 EP EP23725383.6A patent/EP4511357A1/fr active Pending
- 2023-04-18 CN CN202380034939.7A patent/CN119053583A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3134576A1 (fr) | 2023-10-20 |
| JP2025513355A (ja) | 2025-04-24 |
| US20250282718A1 (en) | 2025-09-11 |
| CN119053583A (zh) | 2024-11-29 |
| FR3134576B1 (fr) | 2025-07-18 |
| WO2023203297A1 (fr) | 2023-10-26 |
| KR20250005314A (ko) | 2025-01-09 |
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