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1.发明公开
公开(公告)号：EP4270535A1
公开(公告)日：2023-11-01
申请号：EP21911079.8
申请日：2021-12-24
发明人： YAMADA, Takaya , YAMADA, Masahiko , HIRAGA, Kentarou , SUI, Xianwei , TERADA, Junpei , FUJIWARA, Kae , FUJIOKA, Seika , TOKUHIRA, Katsusada , USAMI, Ryouta
IPC分类号： H01M4/139 , H01M4/62 , H01M10/052 , H01M10/0562
摘要： Provided is a method for producing a solid-state secondary battery electrode, using PTFE, capable of reducing resistance of the electrode and achieving strength of a positive electrode mixture sheet, and a binder.
A method for producing a solid-state secondary battery sheet, including (1) preparing a composition for producing a secondary battery sheet substantially free of a liquid medium by using a binder that is a powder which comprises a polytetrafluoroethylene resin and a conductive aid homogeneously mixed and which is free of an active material.-
公开(公告)号：EP4029898A1
公开(公告)日：2022-07-20
申请号：EP20864031.8
申请日：2020-08-31
发明人： HIRAGA, Kentarou , SUGIYAMA, Akinari , YAMAGUCHI, Fumihiko , NOMURA, Takashi , SHIBUTANI, Shouta , OKUNO, Shingo
摘要： The present invention provides a fluoropolyether-containing compound of the following formula (1a): R a -R 2 -R 1 -R b (1a) wherein the symbols are as defined in the specificaiton.
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公开(公告)号：EP4418349A1
公开(公告)日：2024-08-21
申请号：EP22881084.2
申请日：2022-10-13
摘要： Provided are a production apparatus and a production method capable of producing an electrode industrially by an efficient method. A mixture sheet production apparatus for an electrochemical device includes a stacking mechanism that stacks two or more mixture sheets containing a binder resin and a press-fusing mechanism that is provided downstream of the stacking mechanism and that integrates the stacked mixture sheets by applying pressure.
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公开(公告)号：EP4210127A1
公开(公告)日：2023-07-12
申请号：EP21864309.6
申请日：2021-08-31
发明人： YAMADA, Takaya , YAMADA, Masahiko , YAMAZAKI, Shigeaki , TERADA, Junpei , FUJIWARA, Kae , HIRAGA, Kentarou , SUI, Xianwei
摘要： Provided is a secondary battery electrode mixture having good properties, a secondary battery electrode mixture sheet containing the electrode mixture, and a secondary battery using the secondary battery electrode mixture sheet. Also provided is a method for producing an electrode mixture sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The secondary battery electrode mixture includes an electrode active material and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the secondary battery electrode mixture sheet contains that electrode mixture.
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公开(公告)号：EP4083082A1
公开(公告)日：2022-11-02
申请号：EP20906660.4
申请日：2020-11-18
发明人： TAKASHIMA, Yoshinori , HARADA, Akira , OSAKI, Motofumi , HATANAKA, Yuko , HIRAGA, Kentarou , YAMAZAKI, Shigeaki , NOMURA, Takashi , SUGIYAMA, Akinari
摘要： Provided is a polymer suitable for a binder for an electrochemical device, which has excellent battery performance such as capacity retention, IV resistance, and reduction of gas generation.
A resin composition comprising a first polymer having a host group in a side chain and a second polymer having a carboxyl group in a side chain.-
6.发明公开
公开(公告)号：EP3937277A1
公开(公告)日：2022-01-12
申请号：EP20765743.8
申请日：2020-03-04
发明人： HARADA, Akira , YAMAGUCHI, Hiroyasu , TAKASHIMA, Yoshinori , HIRAGA, Kentarou , YAMAZAKI, Shigeaki , YAMAGUCHI, Fumihiko , SUGIYAMA, Akinari
摘要： Provided are a binder for an electrochemical device made of a polymer material that has excellent elongation and can suppress a volume change of an electrode structure, and an electrode mixture, an electrode, an electrochemical device, and a secondary battery that comprise the same.
A binder for an electrochemical device, comprising a polymer material including:
a first polymer containing a first constituent unit having a guest group in a side chain; and a second polymer containing a second constituent unit having a host group in a side chain.-
公开(公告)号：EP4418350A1
公开(公告)日：2024-08-21
申请号：EP22881085.9
申请日：2022-10-13
摘要： The present disclosure provides a mixture composition for a secondary battery electrode having good properties and a method for producing an electrode mixture sheet, an electrode mixture sheet, an electrode, and a secondary battery that contain the mixture composition for a secondary battery electrode. The mixture composition for a secondary battery electrode includes a binder, a conductive aid and/or an electrode active material, and a liquid component that can be used as a component in a liquid electrolytic solution.
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公开(公告)号：EP4270534A1
公开(公告)日：2023-11-01
申请号：EP21911076.4
申请日：2021-12-24
发明人： YAMADA, Takaya , YAMADA, Masahiko , HIRAGA, Kentarou , TERADA, Junpei , FUJIWARA, Kae , SUI, Xianwei , TOKUHIRA, Katsusada , USAMI, Ryouta , FUJIOKA, Seika
摘要： Provided is a method for producing a secondary battery electrode, using PTFE, capable of reducing electrical resistance thereof and achieving excellent strength at the same time, and a binder. A method for producing a secondary battery electrode using a non-aqueous electrolyte, including (1) preparing a composition for producing an electrode substantially free of a liquid medium by using a binder that is a powder which is composed of a composition essentially including a polytetrafluoroethylene resin and a conductive aid and which is free of an active material.
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公开(公告)号：EP4210140A1
公开(公告)日：2023-07-12
申请号：EP21864310.4
申请日：2021-08-31
发明人： YAMADA, Takaya , YAMADA, Masahiko , YAMAZAKI, Shigeaki , TERADA, Junpei , FUJIWARA, Kae , HIRAGA, Kentarou , SUI, Xianwei
IPC分类号： H01M10/052 , H01M10/0562
摘要： Provided is an all-solid-state secondary battery mixture having good properties, a secondary battery electrode mixture sheet containing the all-solid-state secondary battery mixture, and a secondary battery using the all-solid-state secondary battery sheet. Also provided is a method for producing an all-solid-state secondary battery sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The all-solid-state secondary battery mixture includes a solid-state electrolyte and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the all-solid-state secondary battery mixture sheet contains that all-solid-state secondary battery mixture.
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10.发明公开
公开(公告)号：EP3936544A1
公开(公告)日：2022-01-12
申请号：EP20767146.2
申请日：2020-03-04
发明人： HARADA, Akira , YAMAGUCHI, Hiroyasu , TAKASHIMA, Yoshinori , HIRAGA, Kentarou , YAMAZAKI, Shigeaki , YAMAGUCHI, Fumihiko , SUGIYAMA, Akinari
IPC分类号： C08F220/54 , H01M4/13 , H01M4/133 , H01M4/62 , H01G11/38
摘要： Provided is a binder for an electrochemical device, which can follow the volume change of an electrode structure due to discharge and charge and can improve a life characteristic of the electrochemical device.
A binder for an electrochemical device, which is a binder for a secondary battery containing a polymer having at least one cyclic host group in a molecule, wherein the host group is present as a side chain of the polymer, and a main chain of the polymer penetrates through at least a part of the cyclic host groups.
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