公开(公告)号：EP3859831A1

公开(公告)日：2021-08-04

申请号：EP19864573.1

申请日：2019-09-24

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  OZAWA, Shin

IPC分类号： H01M4/139 ,  H01M4/13 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/058

摘要： Provided is an electrode composition including: an active material; an inorganic solid electrolyte having an average particle size of 2 µm or less; and a particle-shaped polymer, in which in a case where an average particle size of the particle-shaped polymer is represented by d nm and a content of the particle-shaped polymer with respect to all the solid components of the electrode composition is represented by x mass%, the average particle size d and the content x satisfy specific relationships. Provided are also an electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery that are formed of the electrode composition, and respective methods of manufacturing an electrode sheet for an all-solid state secondary battery and 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：EP3869587A1

公开(公告)日：2021-08-25

申请号：EP19872993.1

申请日：2019-10-10

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  OZAWA, Shin

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

摘要： Provided are an electrode composition, an electrode sheet for an all-solid state secondary battery, an all-solid state secondary battery, and respective methods of manufacturing the electrode composition, the electrode sheet for an all-solid state secondary battery, and the all-solid state secondary battery. The electrode composition includes: an inorganic solid electrolyte; an active material; and a distributing component that binds to the inorganic solid electrolyte and the active material, in which one kind of the distributing component is a binder, an adsorption rate A of the binder to the active material and an adsorption rate B of the binder to the inorganic solid electrolyte satisfy the following Expressions I) and II), and a distribution rate of the distributing component to the active material in an electrode active material layer formed of the electrode composition exceeds 50%. Adsorption Rate A ≥ 20 % Adsorption Rate A > Adsorption Rate B

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：EP3869588A1

公开(公告)日：2021-08-25

申请号：EP19874024.3

申请日：2019-10-10

申请人： FUJIFILM Corporation

发明人： ISOJIMA, Hiroshi ,  OZAWA, Shin

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

摘要： Provided are an electrode composition, an electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery that are formed of the electrode composition, and respective methods of manufacturing the electrode composition, the electrode sheet for an all-solid state secondary battery, and the all-solid state secondary battery. The electrode composition includes: an inorganic solid electrolyte; an active material; and a distributing component that binds to the inorganic solid electrolyte and the active material, in which one kind of the distributing component is a binder, a polymer forming the binder includes a repeating unit having an amino group, a sulfanyl group, a hydroxy group, a carboxy group, or an anone group, and a distribution rate of the distributing component to the inorganic solid electrolyte in an electrode active material layer formed of the electrode composition exceeds 60%.