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公开(公告)号：EP4425637A1
公开(公告)日：2024-09-04
申请号：EP23219981.0
申请日：2023-12-22
发明人： ISEDA, Taisuke , NISHIDA, Akira
IPC分类号： H01M10/0585 , H01M50/417 , H01M50/46 , H01M10/04 , H01M50/403
CPC分类号： H01M50/461 , H01M50/417 , H01M50/403 , H01M10/0431
摘要： A method for manufacturing a storage device (100) disclosed herein includes an arranging step (S1) of arranging an adhesion layer slurry on a surface of a separator (26), a forming step (S2) of removing a solvent and a dispersion medium from the adhesion layer slurry to form an adhesion layer (6), and a stacking step (S3) of stacking a positive electrode (22), the separator (26), and a negative electrode (24). In the stacking step (S3), the separator (26) including the adhesion layer (6) arranged in a shape of a plurality of dots on a surface thereof is used, and each of the dots of the adhesion layer (6) includes an adhesion layer non-formed region (E) in a central portion thereof when viewed from top.
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公开(公告)号：EP4336612A3
公开(公告)日：2024-09-18
申请号：EP23192400.2
申请日：2023-08-21
发明人： ISEDA, Taisuke , NISHIDA, Akira , NIHOMMATSU, Koji
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0587 , H01M50/46
CPC分类号： H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M50/461 , Y02E60/10 , Y02P70/50 , H01M10/0468 , H01M50/403 , H01M10/0409
摘要： Provided is a technology which can produce a battery comprising a wound electrode assembly including separators having adhesive layers, with high productivity. In one suitable aspect of the method of manufacturing a battery as disclosed herein, the method comprises a first winding step of bringing a first separator and a second separator into contact with a winding core and winding the first separator and the second separator around the winding core; a second adhesive layer forming step of forming a second adhesive layer in the second separator; a first adhesive layer forming step of forming a first adhesive layer in the first separator; a second winding step of winding a positive electrode sheet and an negative electrode sheet around the winding core along with the first separator and the second separator; and a pressing step of pressing, after the second winding step, the first separator, the positive electrode sheet, the second separator, and the negative electrode sheet which have been wound.
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公开(公告)号：EP4312291A2
公开(公告)日：2024-01-31
申请号：EP23185824.2
申请日：2023-07-17
发明人： NISHIDA, Akira , ISEDA, Taisuke
IPC分类号： H01M10/04 , H01M10/052 , H01M10/0587 , H01M50/446 , H01M50/457 , H01M50/46
摘要： A battery 100 disclosed herein includes a wound electrode body 20 in which a positive electrode 22 and a negative electrode 24 are wound through a separator 70. The separator 70 includes the adhesive layer 74 on at least one surface, and on the one surface, a non-formation region N1 where the adhesive layer 74 is not formed is provided in at least one end part in a winding axis direction WD.
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公开(公告)号：EP4425624A1
公开(公告)日：2024-09-04
申请号：EP23220556.7
申请日：2023-12-28
发明人： ISEDA, Taisuke , NISHIDA, Akira
IPC分类号： H01M10/04 , H01M10/0587 , H01M50/403 , H01M50/46
CPC分类号： H01M50/461 , H01M10/0587 , H01M10/0431 , H01M50/403
摘要： A method for manufacturing a storage device (100) disclosed herein includes a winding step (S3) of winding a positive electrode (22) and a negative electrode (24) with a separator (26) interposed therebetween to manufacture a wound body (20A), and a pressing step (S4) of pressing the wound body (20A) to form the wound body (20A) into a flat wound electrode body (20a). In the winding step (S3), a separator (26) including an adhesion layer (6) arranged in a shape of a plurality of dots is used. Each of the dots of the adhesion layer (6) includes an adhesion layer non-formed region (E) in a central portion thereof when viewed from top. In the pressing step (S4), an area of the adhesion layer non-formed region (E) when viewed from top is reduced to 1/2 or less.
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5.发明公开
公开(公告)号：EP4421930A1
公开(公告)日：2024-08-28
申请号：EP24155319.7
申请日：2024-02-01
发明人： ISEDA, Taisuke , NISHIDA, Akira
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0587 , H01M50/46
CPC分类号： H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M50/461
摘要： Provided is a technology obtaining an electricity storage device including a wound electrode body with high productivity. A method of manufacturing an electricity storage device of one embodiment disclosed herein includes: a winding step S2 of winding a positive electrode 22 and a negative electrode 24 with a separator 26 interposed therebetween to produce a wound body 20A; and after the winding step S2, a pressing step S3 of pressing the wound body 20A to form each of wound electrode bodies 20a, 20b, and 20c having a flat shape, wherein the separator partially having an adhesive layer 6 on at least one surface thereof is used in the winding step S2, the adhesive layer 6 includes a first adhesive region 6A and a second adhesive region 6B, and the thickness T1 of the first adhesive region 6A is 1.5 times or more the thickness T2 of the second adhesive region 6B. The manufacturing method further includes a formation step S1 before the winding step S2.
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公开(公告)号：EP4415091A1
公开(公告)日：2024-08-14
申请号：EP23218425.9
申请日：2023-12-20
发明人： ISEDA, Taisuke , NISHIDA, Akira
IPC分类号： H01M10/04 , H01M10/0587 , H01M50/417 , H01M50/446 , H01M50/46
CPC分类号： H01M50/446 , H01M50/461 , H01M50/417 , H01M10/0587 , H01M10/0431
摘要： Provided is a technology that can obtain an electricity storage device including a wound electrode body with high productivity. In an aspect of the electricity storage device disclosed herein, the separator 26 has a first adhesive layer 1A and a second adhesive layer 1B on at least one surface of the separator. In plan view of the separator 26, the first adhesive layer 1A is partially formed, and the second adhesive layer 1B is partially formed. The first adhesive layer 1A is composed of an adhesive layer that exhibits adhesiveness to the positive electrode 22 by contacting the positive electrode 22 facing the first adhesive layer 1A at ordinary temperature. The second adhesive layer 1B is composed of an adhesive layer that has no adhesiveness to the positive electrode 22 when the first adhesive layer 1A adheres to the facing positive electrode 22, and thereafter exhibits adhesiveness to the positive electrode 22 when some physical means is applied.
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公开(公告)号：EP4336612A2
公开(公告)日：2024-03-13
申请号：EP23192400.2
申请日：2023-08-21
发明人： ISEDA, Taisuke , NISHIDA, Akira , NIHOMMATSU, Koji
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0587 , H01M50/46
摘要： Provided is a technology which can produce a battery comprising a wound electrode assembly including separators having adhesive layers, with high productivity. In one suitable aspect of the method of manufacturing a battery as disclosed herein, the method comprises a first winding step of bringing a first separator and a second separator into contact with a winding core and winding the first separator and the second separator around the winding core; a second adhesive layer forming step of forming a second adhesive layer in the second separator; a first adhesive layer forming step of forming a first adhesive layer in the first separator; a second winding step of winding a positive electrode sheet and an negative electrode sheet around the winding core along with the first separator and the second separator; and a pressing step of pressing, after the second winding step, the first separator, the positive electrode sheet, the second separator, and the negative electrode sheet which have been wound.
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公开(公告)号：EP4336614A3
公开(公告)日：2024-09-18
申请号：EP23193202.1
申请日：2023-08-24
发明人： ISEDA, Taisuke , NISHIDA, Akira , NIHOMMATSU, Koji
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0587 , H01M50/46
CPC分类号： H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M50/46 , Y02E60/10 , Y02P70/50
摘要： Provided is a technology which can produce a battery comprising a wound electrode assembly including adhesive layers, with high productivity. The method of manufacturing a battery as disclosed herein comprises a first formation step of forming a first adhesive layer on a surface of a first separator; a second formation step of forming a second adhesive layer on a surface of a positive electrode sheet; and a lamination step of laminating the first separator, the positive electrode sheet, a second separator, and an negative electrode sheet.
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公开(公告)号：EP4415147A1
公开(公告)日：2024-08-14
申请号：EP23219310.2
申请日：2023-12-21
发明人： ISEDA, Taisuke , NISHIDA, Akira
IPC分类号： H01M50/46 , H01M10/04 , H01M10/052 , H01M10/0587 , H01M50/103
CPC分类号： H01M10/052 , H01M10/0587 , H01M10/0431 , H01M50/461 , H01M50/103
摘要： Provided is a technology that can obtain an electricity storage device including a wound electrode body with high productivity. A method of manufacturing an electricity storage device according to an aspect disclosed herein includes: a winding step S1 of winding a positive electrode 22 and a negative electrode 24 with a separator 26 interposed therebeween to produce a wound body 20A; and a pressing step S2 of pressing the wound body 20A to form a wound electrode body 20a (20b, 20c) having a flat shape after the winding step S1. The separator 26 used in the winding step S1 has a first adhesive layer 1A and a second adhesive layer 1B on at least one surface of the separator 26. In the winding step S1, the first adhesive layer 1A and the positive electrode 22 adhere to each other, and the second adhesive layer 1B and the positive electrode 22 adhere to each other with a force weaker than an adhesive force between the first adhesive layer 1A and the positive electrode 22. In the pressing step S2, the second adhesive layer 1B and the positive electrode 22 adhere to each other more strongly than in a state prior to the pressing step.
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公开(公告)号：EP4345962A1
公开(公告)日：2024-04-03
申请号：EP23192718.7
申请日：2023-08-22
发明人： NISHIDA, Akira , ISEDA, Taisuke
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0587 , H01M50/46
摘要： The present disclosure provides a method for manufacturing includes: an adhesive layer formation step of forming a first adhesive layer on a surface of at least one of a positive electrode sheet and a first separator and forming a second adhesive layer on a surface of at least one of the positive electrode sheet and a second separator; and a wound electrode body fabrication step of fabricating a wound electrode body by winding the first separator, the positive electrode sheet, second separator, and the negative electrode sheet.
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