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1.发明公开
公开(公告)号：EP4261973A1
公开(公告)日：2023-10-18
申请号：EP22305543.5
申请日：2022-04-13
发明人： CASTRO, Laurent , GUEGUEN, Aurélie , COTTE, Stéphane , ALVAREZ, Marta , MECERREYES, David , VAUTHIER, Soline , CASADO, Nerea , GUZMAN, Gregorio
IPC分类号： H01M10/0525 , H01M10/0565
摘要： The present invention relates to a UV or thermally-curable electrolyte composition comprising a crosslinker monomer and a liquid electrolyte based on diethylmethyl(2-methoxyethyl)ammonium bis(fluorosulfonyl)imide (DEME-FSI) and a lithium salt. This curable electrolyte composition is suitable for preparing a self-standing solid electrolyte, in which the liquid electrolyte is entrapped in the polymer network formed when curing the composition to ultraviolet light (UV) or high temperature. The self-standing solid electrolyte of the invention can be used in solid lithium-air battery cells and battery packs for electric vehicles and hybrid vehicles, electronic devices, and stationary power generating devices.
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2.发明公开
公开(公告)号：EP4210155A1
公开(公告)日：2023-07-12
申请号：EP22305013.9
申请日：2022-01-07
发明人： CASTRO, Laurent , GUEGUEN, Aurélie , COTTE, Stéphane , ALVAREZ TIRADO, Marta , MECERREYES, David , VAUTHIER, Soline , PORCARELLI, Luca , CASADO, Nerea
IPC分类号： H01M12/08 , H01M10/0569 , H01M10/0565 , H01M10/052 , H01M4/38 , H01M4/86 , H01M4/96 , H01M10/0568
摘要： The present invention relates to an ether-based electrolyte composition comprising:
(A) at least one solvent of formula (1):
RO-CH 2 -CH(OR')-CH 2 -OR" (1)
wherein: R, R' and R", identical or different, are C 1-6 alkyl chains, and preferably CH 3 ; and
(B) at least one alkali metal salt.
The invention also concerns the use of a compound of formula (1) as a solvent in an electrolyte composition for metal-air battery.
A metal-air battery comprising a separator soaked by a liquid (nonaqueous) electrolyte medium arranged between the negative and positive electrodes, or a metal-air battery comprising a crosslinked-gel polymer electrolyte interposed between the negative and positive electrodes, is also part of the invention.
The invention also concerns a battery pack comprising at least two metal-air battery cells according to the invention. The use of a battery pack according to the invention as a rechargeable battery for electric vehicles and hybrid vehicles, electronic devices, and stationary power generating devices, is also part of the invention. Finally, the invention is directed at a vehicle, an electronic device, and a stationary power generating device, and preferably cars, bikes, scooters and drones, comprising a battery pack according to the invention.-
公开(公告)号：EP4195326A1
公开(公告)日：2023-06-14
申请号：EP21306763.0
申请日：2021-12-13
发明人： COTTE, Stéphane , GUEGUEN, Aurélie , CASTRO, Laurent , VAUTHIER, Soline , ALVAREZ, Marta , CASADO, Nerea , MECERREYES, David
IPC分类号： H01M4/62 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M12/08 , H01M4/86 , H01M4/96 , H01M10/0568 , H01M10/0569
摘要： In a first aspect, the present invention relates to a composition comprising:
(A) a mixed oxide of lithium, nickel, manganese and cobalt;
(B) a fluorinated anion salt of a polycationic polymer.
The first aspect of the present invention further relates to a lithium-ion battery, comprising a cathode including a positive electrode active material comprising the composition containing components (A) and (B).
In a second aspect, the present invention relates to a lithium-air battery comprising a cathode using oxygen as a positive-electrode active material, wherein the cathode contains a fluorinated anion salt of a polycationic polymer.
The fluorinated anion salt of the polycationic polymer contains repeating units represented by one of the following formulae (1) or (2):
wherein, in the formula (1), N + is a nitrogen atom constituting a quaternary ammonium cation, R 1 and R 2 being each independently a substituent containing a carbon atom bonded to the nitrogen atom,
wherein, in the formula (2), R 3 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
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