公开(公告)号：US20230055748A1

公开(公告)日：2023-02-23

申请号：US17972783

申请日：2022-10-25

Applicant: TOPPAN INC.

Inventor： Junya IMAMOTO

IPC: H01M50/562 ,  H01M50/55

Abstract: A resin film for a terminal which includes at least three layers, which define a first outer surface and a second outer surface of the resin film, the first outer surface being opposed to the second outer surface; a first adhesive layer which is one of the three layers and is arranged to form the first outer surface of the resin film; a second adhesive layer which is one of the three layers and is arranged to form the second outer surface of the resin film; and an insulating layer which is arranged between the first adhesive layer and the second adhesive layer. The first adhesive layer contains first polypropylene and second polypropylene. The first polypropylene has a long-chain branched structure. The second polypropylene has no long-chain branched structure and has a melting point of 80° C. to 155° C.

公开(公告)号：US20230318154A1

公开(公告)日：2023-10-05

申请号：US18196302

申请日：2023-05-11

Applicant: TOPPAN INC.

Inventor： Junya IMAMOTO

IPC: H01M50/562

CPC classification number: H01M50/562

Abstract: A terminal resin film of at least seven layers, with at least a layer A, a layer B, a layer C, and a layer D, and a structure being layer A, the layer B, the layer A, and the layer C or the layer D; or, the structure being layer A, the layer B, and the layer A, and Layer A: A layer formed from a resin composition including an acid-modified polyolefin resin and having an MFR of 2.0 to 50 g/10 mins; Layer B: A layer formed from a resin composition including a polyolefin resin and having an MFR of 0.05 g/10 mins or more and less than 2.0 g/10 mins; Layer C: A layer formed from a resin composition including an unmodified polyolefin resin and having an MFR of 0.05 to 50 g/10 mins; and, Layer D: An adhesive layer including a resin having a cross-linked structure.

公开(公告)号：US20240178532A1

公开(公告)日：2024-05-30

申请号：US18397899

申请日：2023-12-27

Applicant: TOPPAN INC.

Inventor： Takuya MURAKI ,  Junya IMAMOTO

IPC: H01M50/562 ,  B32B7/027 ,  B32B15/085 ,  H01M50/105

CPC classification number: H01M50/562 ,  B32B7/027 ,  B32B15/085 ,  H01M50/105 ,  B32B2307/7376 ,  B32B2457/10

Abstract: A tab sealant disposed covering at least a part of an outer surface of metal terminals of a power storage device, the tab sealant including: a first sealant layer disposed facing the metal terminal; a high-melting-point layer containing a polyolefin resin; and a second sealant layer, which are laminated in this order, wherein each of the first sealant layer and the second sealant layer includes a low-melting-point layer containing acid-modified polyolefin resin and a medium-melting-point layer disposed between the low-melting-point layer and the high-melting-point layer, the low-melting-point layer has a melting point of 100° ° C.to 135° ° C., the high-melting-point layer has a melting point of 140° ° C.to 170° C., and the melting point of the medium-melting-point layer is higher than the melting point of the low-melting-point layer by 10° C. or more and lower than the melting point of the high-melting-point layer by 10° C. or more.

公开(公告)号：US20220399621A1

公开(公告)日：2022-12-15

申请号：US17889643

申请日：2022-08-17

Applicant: TOPPAN INC.

Inventor： Junya IMAMOTO

IPC: H01M50/591 ,  H01M50/562 ,  H01M50/186 ,  H01M50/193 ,  H01M10/0525 ,  B32B27/08 ,  B32B27/32

Abstract: A resin film for a terminal according to one aspect of the present disclosure is for covering the outer peripheral surface of part of a metal terminal that constitutes a power storage device, and includes a resin layer containing: a polyethylene; and a compatibilizer having a region which is compatible with the polyethylene and a region which is compatible with polypropylene.

公开(公告)号：US20220328911A1

公开(公告)日：2022-10-13

申请号：US17844195

申请日：2022-06-20

Applicant: TOPPAN INC.

Inventor： Junya IMAMOTO ,  Koji MURATA

IPC: H01M50/129 ,  H01M50/121

Abstract: A packaging material for a power storage device and a power storage device using the same, a method of producing a packaging material for a power storage device, and a method of selecting a sealant film used as a sealant layer in the packaging material for a power storage device are provided.

公开(公告)号：US20220325088A1

公开(公告)日：2022-10-13

申请号：US17847362

申请日：2022-06-23

Applicant: TOPPAN INC.

Inventor： Junya IMAMOTO

IPC: C08L23/30 ,  C08L23/12 ,  C08L67/02 ,  C08L77/02 ,  H01M50/197 ,  H01M50/193 ,  H01M50/188

Abstract: A terminal-coating resin film according to one aspect of the present disclosure is so disposed in a power storage device including a power storage device body and a terminal electrically connected to the power storage device body as to cover an outer peripheral surface of part of the terminal. The terminal-coating resin film has a single-layer structure or a multilayer structure and includes a resin layer having at least one secondary dispersion peak γ within a range of −130° C. to −50° C. in a profile of a loss tangent tan δ obtained by dynamic viscoelastic measurement under a condition of 1.0 Hz. The terminal-coating film is comprised of a resin composition including a first resin including polyolefin and a second resin including at least one resin selected from polyester, polyamide, polycarbonate, and polyphenylene ether.