公开(公告)号：EP4421826A1

公开(公告)日：2024-08-28

申请号：EP22883541.9

申请日：2022-10-17

申请人： FUJIFILM Corporation

发明人： NAGATA, Yuzo ,  SUZUKI, Hideyuki

IPC分类号： H01B1/06 ,  C08F265/06 ,  C08K3/04 ,  C08K3/20 ,  C08K3/40 ,  C08L33/26 ,  C08L101/02 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0561 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585

CPC分类号： Y02E60/10 ,  Y02P70/50 ,  C08F265/06 ,  C08K3/04 ,  C08K3/20 ,  C08K3/40 ,  C08L33/26 ,  C08L101/02 ,  H01B1/06 ,  H01M4/139 ,  H01M4/13 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0561 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585

摘要： There is provided an inorganic solid electrolyte-containing composition containing an inorganic solid electrolyte, a polymer binder, and a dispersion medium, where the inorganic solid electrolyte-containing composition is such that the polymer binder has a constitutional component (A) containing a specific functional group such as an amide group, in a molecular chain that serves as a side chain of the polymer, and contains a graft polymer having a specific mass average molecular weight to be dissolved in a dispersion medium. There are also provided a sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which the inorganic solid electrolyte-containing composition is used, and manufacturing methods for a sheet for an all-solid state secondary battery, and an all-solid state secondary battery.

公开(公告)号：EP3706209A1

公开(公告)日：2020-09-09

申请号：EP18871975.1

申请日：2018-10-15

申请人： FUJIFILM Corporation

发明人： SUZUKI, Hideyuki ,  OZAWA, Shin

IPC分类号： H01M4/139 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/058

摘要： Provided are a composition for forming an active material layer, including a sulfide-based solid electrolyte, an active material, a conductive auxiliary agent including a carbonaceous material, and a dispersion medium, in which the dispersion medium includes at least one ketone compound dispersion medium in which two aliphatic groups each having 4 or more carbon atoms are bonded to a carbonyl group; a method for manufacturing the composition for forming an active material layer; a method for manufacturing a solid electrolyte-containing sheet; and a method for manufacturing an all-solid state secondary battery.

公开(公告)号：EP4002514A1

公开(公告)日：2022-05-25

申请号：EP20843068.6

申请日：2020-06-22

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  SUZUKI, Hideyuki

IPC分类号： H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0562

摘要： There are provided an inorganic solid electrolyte-containing composition excellent in initial dispersibility and dispersion stability, a sheet for an all-solid state secondary battery, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery, and manufacturing methods for a sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which the above inorganic solid electrolyte-containing composition is used. The inorganic solid electrolyte-containing composition is a composition containing an inorganic solid electrolyte, a binder, and an organic solvent, where the composition contains, as the binder, at least two kinds of binder A and binder B which differ in adsorption rate with respect to the inorganic solid electrolyte, and an adsorption rate of the inorganic solid electrolyte-containing composition is 15% or more, and an adsorption rate of the binder B is less than 10%. The manufacturing methods for a sheet for an all-solid state secondary battery and an all-solid state secondary battery are methods in which a sheet for an all-solid state secondary battery, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery, in which the above inorganic solid electrolyte-containing composition is used, are used.

公开(公告)号：EP3859862A1

公开(公告)日：2021-08-04

申请号：EP19864024.5

申请日：2019-09-25

申请人： FUJIFILM Corporation

发明人： SUZUKI, Hideyuki

IPC分类号： H01M10/0585 ,  H01M4/13 ,  H01M10/0562

摘要： Provided is a method of manufacturing an all-solid state secondary battery having a layer configuration in which a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer are laminated in this order, the method comprising: a pre-compression bonding step of laminating a solid electrolyte layer and one of a positive electrode active material layer or a negative electrode active material layer to form a laminate and compressing the laminate to bond the layers, the solid electrolyte layer being formed on a support and including a binder consisting of a polymer and an inorganic solid electrolyte; a step of peeling off the support from the solid electrolyte layer such that 1% to 10 mass% of the solid electrolyte layer that is compressed and bonded to the active material layer remains in the support; and a post-compression bonding step of laminating the solid electrolyte layer from which the support is peeled off and another one of the positive electrode active material layer or the negative electrode active material layer to form a laminate and compressing the laminate to bond the layers. Provided also are an electrode sheet for an all-solid state secondary battery that is manufactured in the manufacturing method, and a method of manufacturing the electrode sheet for an all-solid state secondary battery.

公开(公告)号：EP4024501A1

公开(公告)日：2022-07-06

申请号：EP20856030.0

申请日：2020-08-28

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  SUZUKI, Hideyuki ,  YASUDA, Koji

IPC分类号： H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01B1/06 ,  H01B1/08 ,  H01B1/10 ,  H01B1/22

摘要： There is provided an inorganic solid electrolyte-containing composition containing an inorganic solid electrolyte, a polymer binder, and a dispersion medium, in which the polymer binder includes a polymer binder consisting of a fluorine-based copolymer which contains a vinylidene fluoride constitutional component and a hexafluoropropylene constitutional component of 21% to 65% by mole and in which a tensile fracture strain is 500% or more, and the adsorption rate of this polymer binder with respect to the inorganic solid electrolyte is less than 60%. There are also provided a sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which this inorganic solid electrolyte-containing composition is used, and manufacturing methods for a sheet for an all-solid state secondary battery, and an all-solid state secondary battery.

公开(公告)号：EP4023690A1

公开(公告)日：2022-07-06

申请号：EP20856029.2

申请日：2020-08-28

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  SUZUKI, Hideyuki ,  YASUDA, Koji

IPC分类号： C08F293/00 ,  C08L53/00 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01B1/06 ,  H01B1/08 ,  H01B1/10 ,  C08K3/105

摘要： There is provided an inorganic solid electrolyte-containing composition containing an inorganic solid electrolyte, a polymer binder, and a dispersion medium having an SP value of 15 to 21 MPa 1/2 , in which the binder includes a polymer binder consisting of a styrene-ethylene-butylene-styrene copolymer in which a content of a styrene constitutional component is more than 0% by mole and less than 50% by mole, the adsorption rate of the polymer binder with respect to the inorganic solid electrolyte is less than 60%. There are also provided a sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which this inorganic solid electrolyte-containing composition is used, and manufacturing methods for a sheet for an all-solid state secondary battery, and an all-solid state secondary battery.

公开(公告)号：EP3713003A1

公开(公告)日：2020-09-23

申请号：EP18878398.9

申请日：2018-11-15

申请人： FUJIFILM Corporation

发明人： SUZUKI, Hideyuki ,  OZAWA, Shin

IPC分类号： H01M10/0562 ,  H01B1/06 ,  H01B1/10 ,  H01B13/00 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/058

摘要： Provided are a solid electrolyte composition including a sulfide-based inorganic solid electrolyte and a plurality of kinds of alkane dispersion media, in which the plurality of kinds of alkane dispersion media include, with respect to a peak of each alkane dispersion medium obtained by measurement under specific conditions using a gas chromatography, two kinds of alkane dispersion media in which a difference in retention time between mutually adjacent peaks of dispersion media is more than 0 minutes and within 0.2 minutes, a solid electrolyte-containing sheet, an all-solid state secondary battery, and methods for manufacturing a solid electrolyte-containing sheet and an all-solid state secondary battery.