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1. 发明公开

EP4372897A1 SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY 审中-实审
公开(公告)号：EP4372897A1
公开(公告)日：2024-05-22
申请号：EP22842218.4
申请日：2022-07-15
申请人： Teijin Limited
发明人： KURATANI, Rika , MIURA, Mai , NISHIKAWA, Satoshi
IPC分类号： H01M50/451 , B32B5/32 , B32B27/20 , B32B27/30 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC分类号： Y02E60/10 , B32B5/32 , B32B27/30 , B32B27/20 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/426 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin and an inorganic filler, in which an average primary particle size of all of the inorganic filler contained in the adhesive porous layer is from 0.01 µm to less than 0.50 µm, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.

2. 发明公开

EP4190860A1 NONAQUEOUS SECONDARY BATTERY 无效
公开(公告)号：EP4190860A1
公开(公告)日：2023-06-07
申请号：EP21849844.2
申请日：2021-07-27
申请人： Teijin Limited
发明人： MORIMURA, Wataru , NISHIKAWA, Satoshi
IPC分类号： C08L27/16 , H01M10/052 , H01M10/0566 , C08K3/013 , C08K3/22 , C08K3/30 , H01M50/409 , H01M50/42 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489 , H01M50/491
摘要： A non-aqueous secondary battery, containing a positive electrode, a negative electrode, an insulating layer that is a single layer contacting the positive electrode on one side and contacting the negative electrode on another side, and an electrolyte, in which (1) the insulating layer includes a polyvinylidene fluoride type resin and inorganic particles, a weight-average molecular weight of the polyvinylidene fluoride type resin contained in the insulating layer is from 900,000 to 1,500,000, and a content ratio of the inorganic particles in the insulating layer is from 50% by mass to less than 90% by mass; (2) the insulating layer includes a resin and inorganic particles, a thickness of the insulating layer is from 5 µm to 30 µm, and the inorganic particles include metal sulfate particles; or (3) the insulating layer includes a polyvinylidene fluoride type resin and inorganic particles, the polyvinylidene fluoride type resin contains, as polymerizing components, vinylidene fluoride and a monomer represented by the following formula (1):

3. 发明公开

EP4190550A1 SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY 审中-实审
公开(公告)号：EP4190550A1
公开(公告)日：2023-06-07
申请号：EP21848893.0
申请日：2021-07-29
申请人： Teijin Limited
发明人： SATO, Megumi , NISHIKAWA, Satoshi
IPC分类号： B32B5/18 , C08J9/42 , H01M50/414 , H01M50/423 , H01M50/434 , H01M50/443 , H01M50/451 , H01M50/457 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate, and a heat resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a heat resistant resin and barium sulfate particles, in which an average primary particle size of the barium sulfate particles contained in the heat resistant porous layer is from 0.01 µm to less than 0.30 µm, and in which a volume ratio of the barium sulfate particles in a solid content portion of the heat resistant porous layer is from 5% by volume to less than 30% by volume.

4. 发明公开

EP3920264A1 NON-AQUEOUS SECONDARY BATTERY SEPARATOR AND NON-AQUEOUS SECONDARY BATTERY 有权
公开(公告)号：EP3920264A1
公开(公告)日：2021-12-08
申请号：EP20772919.5
申请日：2020-03-23
申请人： Teijin Limited
发明人： SATO, Megumi , KURATANI, Rika , NAGAO, Yu , OKAZAKI, Masato , NISHIKAWA, Satoshi
IPC分类号： H01M2/16
摘要： An embodiment of the invention provide a separator for a non-aqueous secondary battery, including a porous substrate; and a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a binder resin and barium sulfate particles, in which an average primary particle diameter of the barium sulfate particles contained in the heat-resistant porous layer is from 0.01 µm to less than 0.30 µm, and in which a volume ratio of the barium sulfate particles in the heat-resistant porous layer is from 30% by volume to less than 50% by volume.

5. 发明授权

EP3376562B1 SEPARATOR FOR NON-AQUEOUS SECONDARY CELL, AND NON-AQUEOUS SECONDARY CELL 有权
公开(公告)号：EP3376562B1
公开(公告)日：2019-12-25
申请号：EP16864222.1
申请日：2016-11-08
申请人： Teijin Limited
发明人： HONDA, Susumu , NISHIKAWA, Satoshi , YOSHITOMI, Takashi , KURATANI, Rika
IPC分类号： H01M2/16 , H01M10/05

6. 发明授权

EP2124271B1 SEPARATOR FOR NONAQUEOUS SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NONAQUEOUS SECONDARY BATTERY 有权
标题翻译：切割元件对于自由水的二次电池，其制造工艺和水的二次电池
公开(公告)号：EP2124271B1
公开(公告)日：2013-01-02
申请号：EP07832009.0
申请日：2007-11-16
申请人： Teijin Limited
发明人： NISHIKAWA, Satoshi
IPC分类号： H01M2/14
CPC分类号： H01M2/1653 , H01M2/145 , H01M2/1646 , H01M2/166 , H01M2/1686 , H01M10/052 , H01M10/0525 , H01M10/4235

7. 发明公开

EP4372895A1 SEPARATOR FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY 审中-实审
公开(公告)号：EP4372895A1
公开(公告)日：2024-05-22
申请号：EP22842216.8
申请日：2022-07-15
申请人： Teijin Limited
发明人： KURATANI, Rika , MIURA, Mai , NISHIKAWA, Satoshi
IPC分类号： H01M50/451 , B32B5/32 , B32B27/20 , B32B27/30 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC分类号： Y02E60/10 , B32B5/32 , B32B27/30 , B32B27/20 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/426 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that contains a polyvinylidene fluoride type resin and a filler, in which a Gurley value of the separator is from 50 sec/100mL to 200 sec/100mL, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.

8. 发明公开

EP4372894A1 SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY 审中-实审
公开(公告)号：EP4372894A1
公开(公告)日：2024-05-22
申请号：EP22842215.0
申请日：2022-07-15
申请人： Teijin Limited
发明人： KURATANI, Rika , MIURA, Mai , NISHIKAWA, Satoshi
IPC分类号： H01M50/451 , B32B5/32 , B32B27/20 , B32B27/30 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC分类号： Y02E60/10 , B32B5/32 , B32B27/30 , B32B27/20 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/426 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin and a filler, in which the porous substrate contains a fluorine atom, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.

9. 发明公开

EP4235891A2 SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY 审中-实审
公开(公告)号：EP4235891A2
公开(公告)日：2023-08-30
申请号：EP23173278.5
申请日：2020-06-03
申请人： Teijin Limited
发明人： HONDA, Susumu , NISHIKAWA, Satoshi
IPC分类号： H01M10/052
摘要： An embodiment of the present invention provides a separator for a non-aqueous secondary battery containing a porous substrate; a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a binder resin and inorganic particles, the inorganic particles having an average primary particle diameter from 0.01 µm to less than 0.45 µm; and an adhesive layer that is provided on one side or on both sides of a laminated body of the porous substrate and the heat-resistant porous layer, and adhesive resin particles adhered to the laminated body.

10. 发明公开

EP3920318A1 SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY 有权
公开(公告)号：EP3920318A1
公开(公告)日：2021-12-08
申请号：EP21758298.0
申请日：2021-02-19
申请人： Teijin Limited
发明人： MORIMURA, Wataru , NISHIKAWA, Satoshi
IPC分类号： H01M50/409 , C08J9/26 , H01M10/052 , H01M10/0569
摘要： An embodiment of the present invention provides a separator for a non-aqueous secondary battery containing: a porous layer that is provided on only one side of the porous substrate, and that contains a resin having at least one bonding group selected from the group consisting of an amide bond, an imide bond, and a sulfonyl bond, in which, in the porous substrate, an absolute value of a difference between a temperature of an endothermic peak observed at from 120°C to 145°C in a temperature raising process 1, and a temperature of an endothermic peak observed at from 120°C to 145°C in a temperature raising process 2, is 1.50°C or higher in DSC measurement when the temperature raising process 1 of continuously raising the temperature from 30°C to 200°C at a temperature change rate of 5°C/min in a nitrogen atmosphere, and the temperature raising process 2 of lowering the temperature from 200°C to 30°C and raising the temperature from 30°C to 200°C, are performed.

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