公开(公告)号：US20230207970A1

公开(公告)日：2023-06-29

申请号：US17928180

申请日：2021-05-27

Applicant: TEIJIN LIMITED

Inventor： Hiroshi SAKURAI ,  Tokimitsu KOBAYASHI ,  Satoshi NISHIKAWA

IPC: H01M50/489 ,  H01M50/449 ,  H01M50/423 ,  H01M50/446

CPC classification number: H01M50/489 ,  H01M50/449 ,  H01M50/423 ,  H01M50/446

Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate; and a porous layer that is provided on one side of the porous substrate, and that contains a resin and a filler, in which a shrinkage ratio in a MD direction, when heat-treated at 100° C. for 30 minutes under no tension, is more than 1.2% and less than or equal to 3.5%.

公开(公告)号：US20180254464A1

公开(公告)日：2018-09-06

申请号：US15899669

申请日：2018-02-20

Applicant: TEIJIN LIMITED

Inventor： Hiroshi SAKURAI ,  Satoshi NISHIKAWA

IPC: H01M2/16 ,  C09J127/16 ,  C09D133/12

CPC classification number: H01M2/1686 ,  C09D133/12 ,  C09J127/16 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/168 ,  H01M2/348 ,  H01M10/0525 ,  H01M2220/30 ,  C08L25/04 ,  C08L29/04

Abstract: The separator for a non-aqueous secondary battery which includes a porous substrate, and an adhesive porous layer that is provided on one side or both sides of the porous substrate and that contains a polyvinylidene fluoride type resin, the adhesive porous layer further contains (1) a carboxylic anhydride, a resin that contains a carboxylic anhydride as a monomer component, or a combination thereof, and (2) a resin that contains a hydroxyl group or an amino group.

公开(公告)号：US20240322377A1

公开(公告)日：2024-09-26

申请号：US18578816

申请日：2022-07-15

Applicant: Teijin Limited

Inventor： Rika KURATANI ,  Mai MIURA ,  Satoshi NISHIKAWA

IPC: H01M50/491 ,  H01M10/0525 ,  H01M50/426 ,  H01M50/446 ,  H01M50/457 ,  H01M50/46

CPC classification number: H01M50/491 ,  H01M10/0525 ,  H01M50/426 ,  H01M50/446 ,  H01M50/457 ,  H01M50/461

Abstract: 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.

公开(公告)号：US20220200098A1

公开(公告)日：2022-06-23

申请号：US17604790

申请日：2020-06-03

Applicant: TEIJIN LIMITED

Inventor： Susumu HONDA ,  Satoshi NISHIKAWA

IPC: H01M50/446 ,  H01M50/449 ,  H01M50/443 ,  H01M50/489 ,  H01M10/0525 ,  B32B7/12 ,  B32B5/24 ,  C09J127/16 ,  C09J7/38 ,  C09J7/29

Abstract: 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.

公开(公告)号：US20200343511A1

公开(公告)日：2020-10-29

申请号：US16960425

申请日：2018-09-18

Applicant: TEIJIN LIMITED

Inventor： Yu NAGAO ,  Megumi SATO ,  Rika KURATANI ,  Masato OKAZAKI ,  Satoshi NISHIKAWA

IPC: H01M2/16

Abstract: Provided is a separator for a non-aqueous secondary battery containing 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 size of the barium sulfate particles contained in the heat resistant porous layer is from 0.01 μm to less than 0.30 μm.

公开(公告)号：US20180331342A1

公开(公告)日：2018-11-15

申请号：US15774723

申请日：2016-11-08

Applicant: TEIJIN LIMITED

Inventor： Susumu HONDA ,  Satoshi NISHIKAWA ,  Takashi YOSHITOMI ,  Rika KURATANI

IPC: H01M2/16

Abstract: A separator for a non-aqueous secondary battery, containing a porous substrate, and an adhesive porous layer that is provided on one side or both sides of the porous substrate, in which the adhesive porous layer contains a polyvinylidene fluoride type resin including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, and the polyvinylidene fluoride type resin has an acid value of from 3.0 mgKOH/g to 20 mgKOH/g.

公开(公告)号：US20180166672A1

公开(公告)日：2018-06-14

申请号：US15893795

申请日：2018-02-12

Applicant: TEIJIN LIMITED

Inventor： Susumu HONDA ,  Takashi YOSHITOMI ,  Satoshi NISHIKAWA

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/052

CPC classification number: H01M2/1686 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1666 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

Abstract: Provided is 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 both sides of the porous substrate, that is an aggregate of resin particles and an inorganic filler, and that satisfies the following expression (1). In expression (1), Vf is a volume proportion (% by volume) of the inorganic filler in the heat resistant porous layer, and CPVC is a critical pigment volume concentration (% by volume) of the inorganic filler. Also provided is a separator for a non-aqueous secondary battery, including: a porous substrate, a heat resistant porous layer that is provided on one side or both sides of the porous substrate, that includes a resin and an filler, and that satisfies the following expression (2), and an adhesive porous layer that is provided on both sides of a stacked body of the porous substrate and the heat resistant porous layer, and that includes an adhesive resin. In expression (2), Vf is a volume proportion (% by volume) of the filler in the heat resistant porous layer, and CPVC is a critical pigment volume concentration (% by volume) of the filler. 0.65≤Vf/CPVC≤0.99  expression (1) 0.40≤Vf/CPVC≤0.99  expression (2)

公开(公告)号：US20160006012A1

公开(公告)日：2016-01-07

申请号：US14857263

申请日：2015-09-17

Applicant: TEIJIN LIMITED

Inventor： Hiroki SANO ,  Satoshi NISHIKAWA ,  Takashi YOSHITOMI

IPC: H01M2/16

CPC classification number: H01M2/1686 ,  B32B23/08 ,  B32B27/08 ,  B32B27/281 ,  B32B27/285 ,  B32B27/286 ,  B32B27/288 ,  B32B27/32 ,  B32B27/34 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/34 ,  H01M2/348 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2200/10 ,  Y02T10/7011

Abstract: The present invention provides a separator for a non-aqueous secondary battery, the separator including: a polyolefin microporous membrane having a degree of crystallinity of from 60 to 85% and a tie molecular volume fraction of from 0.7 to 1.7%; and a heat resistant porous layer containing a heat resistant resin and provided on one side or both sides of the polyolefin microporous membrane.

Abstract translation: 本发明提供一种非水二次电池用隔膜，所述隔膜包括：结晶度为60〜85％，粘结分子体积分数为0.7〜1.7％的聚烯烃微多孔膜; 以及含有耐热性树脂的耐热多孔层，设置在聚烯烃微多孔膜的一侧或两侧。

公开(公告)号：US20230155248A1

公开(公告)日：2023-05-18

申请号：US17801416

申请日：2021-02-19

Applicant: TEIJIN LIMITED

Inventor： Wataru MORIMURA ,  Satoshi NISHIKAWA

IPC: H01M50/451 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/423 ,  H01M50/446 ,  H01M50/489

CPC classification number: H01M50/451 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/423 ,  H01M50/446 ,  H01M50/489 ,  H01M2300/0028

Abstract: A separator for a non-aqueous secondary battery contains: 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 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 120° C. to 145° C. in a temperature raising process 1, and a temperature of an endothermic peak observed at 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.

公开(公告)号：US20220190441A1

公开(公告)日：2022-06-16

申请号：US17439553

申请日：2020-02-14

Applicant: TEIJIN LIMITED

Inventor： Hiroshi SAKURAI ,  Rika KURATANI ,  Satoshi NISHIKAWA

IPC: H01M50/449 ,  H01M50/446 ,  H01M50/426 ,  H01M10/0525

Abstract: Provided is a separator for a non-aqueous secondary battery containing 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, an acrylic type resin and metal sulfate particles, in which an average primary particle diameter of the metal sulfate particles contained in the adhesive porous layer is from 0.01 μm to less than 0.30 μm.