公开(公告)号：US20170204759A1

公开(公告)日：2017-07-20

申请号：US15401224

申请日：2017-01-09

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA ,  Yasushi KATO ,  Takahiro KONDO

IPC: F01N3/022 ,  B01D53/94 ,  F01N3/28 ,  B01D46/24

CPC classification number: F01N3/0222 ,  B01D46/247 ,  B01D53/9445 ,  B01D2046/2477 ,  B01D2046/2481 ,  B01D2046/2496 ,  B01D2279/30 ,  F01N3/2828 ,  F01N3/2842 ,  F01N2330/34 ,  Y02T10/20

Abstract: A honeycomb structure having a quadrangular or triangular cross-sectional shape of cells and having specific open cells in which open changing portions are present only in a range of 20 mm or less from the first end face, and the open changing portion satisfies relations of 1≦|(1−(D1/D2))×100|≦80 and 1≦|(1−(D3/D2))×100|≦80. D1 indicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the open end of the cell in the first end face. D2 indicates a diameter of the inscribed circle which comes in contact with the peripheral edge of the open end of the cell in the second end face. D3 indicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the cell in a cross section perpendicular to a direction from the first end face toward the second end face.

公开(公告)号：US20230207796A1

公开(公告)日：2023-06-29

申请号：US18177423

申请日：2023-03-02

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA ,  Yuichi GONDA ,  Takeshi YAGI ,  Kenshin KITOH ,  Shohei YOKOYAMA ,  Naoko INUKAI ,  Sho YAMAMOTO

IPC: H01M4/485 ,  H01M4/04 ,  H01M50/431 ,  H01M10/054 ,  H01M50/491 ,  H01M50/451 ,  H01M4/525 ,  H01M12/04

CPC classification number: H01M4/485 ,  H01M4/0404 ,  H01M4/525 ,  H01M10/054 ,  H01M12/04 ,  H01M50/431 ,  H01M50/451 ,  H01M50/491 ,  H01M2004/027

Abstract: There is provided a secondary zinc battery including: a unit cell including; a positive-electrode plate including a positive-electrode active material layer and a positive-electrode collector; a negative-electrode plate including a negative-electrode active material layer containing zinc and a negative-electrode collector; an LDH separator covering or wrapping around the entire negative-electrode active material layer; and an electrolytic solution. The positive-electrode collector has a positive-electrode collector tab extending from one edge of the positive-electrode active material layer, and the negative-electrode collector has a negative-electrode collector tab extending from the opposite edge of the negative-electrode active material layer and beyond a vertical edge of the LDH-like compound separator. The unit cell can thereby collects electricity from the positive-electrode collector tab and the negative-electrode collector tab that are disposed at opposite edges of the unit cell. The LDH-like compound separator has at least two continuous closed edges.

公开(公告)号：US20200227773A1

公开(公告)日：2020-07-16

申请号：US16828321

申请日：2020-03-24

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA ,  Yuichi GONDA ,  Takeshi YAGI ,  Kenshin KITOH

IPC: H01M10/04 ,  H01M10/28 ,  H01M4/48 ,  H01M4/42 ,  H01M2/16 ,  H01M4/66

Abstract: There is provided a secondary zinc battery including: (a) at least one unit cell including; a positive electrode; a negative-electrode structure including a negative-electrode active material layer containing at least one selected from the group consisting of elemental zinc, zinc oxide, zinc alloys, and zinc compounds; a LDH separator including a porous substrate composed of a polymeric material and layered double hydroxide (LDH); and an electrolytic solution; and (b) a pressuring unit compacting the unit cell to bring the negative-electrode structure in close contact with the LDH separator. Pores of the porous substrate are filled with the LDH such that the LDH separator is hydroxide-ion-conductive and gas-impermeable. The LDH separator separates the positive electrode from the negative-electrode active material layer.

公开(公告)号：US20250015339A1

公开(公告)日：2025-01-09

申请号：US18890945

申请日：2024-09-20

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA

IPC: H01M10/054 ,  H01M4/02 ,  H01M4/131 ,  H01M4/48 ,  H01M50/431 ,  H01M50/491 ,  H01M50/497 ,  H01M50/536 ,  H01M50/54

Abstract: Provided is a zinc secondary battery including a positive electrode plate including a positive electrode active material layer and a positive electrode current collector; a positive electrode tab lead extending from an end of the positive electrode plate; a negative electrode plate including a negative electrode active material layer and a negative electrode current collector; a negative electrode tab lead extending from an end of the negative electrode plate; a hydroxide ion conductive separator; and an electrolytic solution. The electrode plates, the electrode tab leads, and the hydroxide ion conductive separator are vertically arranged respectively. The electrode plate has, along an upper end of the electrode plate, an uncoated region free from the electrode active material layer, and the electrode tab lead is weld-bonded to the current collector in the uncoated region, and an insulating tape is attached to the uncoated region to cover the weld-bonded portion.

公开(公告)号：US20240413486A1

公开(公告)日：2024-12-12

申请号：US18810777

申请日：2024-08-21

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA

IPC: H01M50/466 ,  H01M10/28 ,  H01M50/417 ,  H01M50/431 ,  H01M50/451

Abstract: Provided is a zinc secondary battery including a positive electrode plate including a positive electrode active material layer; a negative electrode plate including a negative electrode active material layer; a hydroxide ion conductive separator that is in a bag-like form for housing the negative electrode plate; an electrolytic solution; and a battery case in which the positive electrode plate, the negative electrode plate, and the hydroxide ion conductive separator are vertically housed. The negative electrode active material layer extends to a position lower than a lower end of the positive electrode active material layer, a height from a bottom of the battery case of a lower end of the negative electrode active material layer is 2.0 to 8.0 mm, and a height difference between the lower end of the positive electrode active material layer and the lower end of the negative electrode active material layer is 3.0 to 4.0 mm.

公开(公告)号：US20170274366A1

公开(公告)日：2017-09-28

申请号：US15437634

申请日：2017-02-21

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto TERANISHI ,  Yasushi KATO ,  Junki MATSUYA ,  Takahiro HONDA ,  Takahiro KONDO

IPC: B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  B01D46/24 ,  B01D53/94

CPC classification number: B01J35/04 ,  B01D46/247 ,  B01D46/2474 ,  B01D53/9413 ,  B01D53/9418 ,  B01D2046/2437 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/504 ,  B01D2255/915 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/2842 ,  F01N2260/06 ,  F01N2330/30 ,  F01N2330/48 ,  Y02A50/2325

Abstract: The honeycomb structure includes a honeycomb structure body having porous partition walls, and a plugging portion disposed in one of open ends of each cell, a thickness of the partition walls is 0.30 mm or more and 0.51 mm or less, a cell density is 30 cells/cm2 or more and 93 cells/cm2 or less, a filtration area (cm2) of inflow cells included per cm3 of the honeycomb structure body is defined as an inflow side filtration area G (cm2/cm3), a value obtained by dividing a pore volume Vp (cm3) formed in the partition walls by a total volume Va (L) including the cells is defined as a pore volume ratio A (cm3/L), and in this case, a product of the inflow side filtration area G (cm2/cm3) and the pore volume ratio A (cm3/L) is 1800 cm2/L or more and 3200 cm2/L or less.

公开(公告)号：US20210210764A1

公开(公告)日：2021-07-08

申请号：US17206272

申请日：2021-03-19

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA ,  Kenshin KITOH ,  Takeshi YAGI

IPC: H01M4/62 ,  H01M4/66 ,  H01M4/80 ,  H01M4/52 ,  H01M50/449 ,  H01M50/417 ,  H01M10/30 ,  H01M4/13

Abstract: Provided is a positive electrode structure including: a positive electrode current collector composed of a tabular nickel foam and having a tabular coated portion and an uncoated portion extending from an outer peripheral portion of the coated portion; a positive electrode active material containing nickel hydroxide and/or nickel oxyhydroxide incorporated into the coated portion of the positive electrode current collector; and a nonwoven fabric made of a polymer material and covering the coated portion of the positive electrode current collector from both sides. The positive electrode active material is not present in the uncoated portion of the positive electrode current collector. The nonwoven fabric covers an entirety of the coated portion and extends from the outer peripheral portion of the coated portion to form a surplus region, and the surplus region is sealed so as to close all around the outer peripheral portion of the coated portion.

公开(公告)号：US20190160413A1

公开(公告)日：2019-05-30

申请号：US16178912

申请日：2018-11-02

Applicant: NGK INSULATORS, LTD.

Inventor： Yasushi KATO ,  Takahiro KONDO ,  Junki MATSUYA

IPC: B01D46/24

CPC classification number: B01D46/2429 ,  B01D46/247 ,  B01D46/2474 ,  B01D2046/2433 ,  B01D2046/2481 ,  B01D2046/2485 ,  B01D2046/2492 ,  B01D2046/2496 ,  B01D2279/30

Abstract: A honeycomb filter includes a honeycomb structure body having porous partition walls arranged to surround cells, in a cross section of the honeycomb structure body which is perpendicular to an extending direction of the cells, a value of a porosity of the partition wall in a partitioning region between the inflow cell and the outflow cell is defined as a porosity A, among intersecting portions where partitioning regions of the partition walls between the cells intersect one another, a value of a porosity of the partition wall in an intersecting portion between the two inflow cells is defined as a porosity B, and a value of A/B obtained by dividing the porosity A by the porosity B is from 0.50 to 0.95.

公开(公告)号：US20170354912A1

公开(公告)日：2017-12-14

申请号：US15616247

申请日：2017-06-07

Applicant: NGK INSULATORS, LTD.

Inventor： Yasushi KATO ,  Takahiro KONDO ,  Junki MATSUYA

IPC: B01D46/24 ,  F01N3/022 ,  B01J35/10 ,  B01J35/04 ,  B01D53/94 ,  C04B35/195

CPC classification number: B01D46/2429 ,  B01D46/2455 ,  B01D46/247 ,  B01D53/9409 ,  B01D53/9431 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2046/2481 ,  B01D2255/9155 ,  B01J29/7615 ,  B01J35/04 ,  B01J35/10 ,  C04B35/195 ,  F01N3/0222

Abstract: The honeycomb structure body has a dense part having a change ratio of porosity calculated by the following Expression (1) that is 1 to 5%. The honeycomb structure body also has an outside-diameter decreasing part in which the outside diameter decreases from the inflow end face to the outflow end face. The honeycomb structure body has a change ratio of average diameter calculated by the following Expression (2) that is 0.2 to 3%. (1−Px/Py)×100,  Expression (1): in Expression (1), Px denotes the porosity (%) at the center region of the outflow end face, and Py denotes the porosity (%) of a circumferential region of the outflow end face other than the center region. (1−Dx/Dy)×100,  Expression (2): in Expression (2), Dx denotes the average diameter (mm) of the outflow end face, and Dy denotes the average diameter (mm) of the inflow end face.

公开(公告)号：US20210194012A1

公开(公告)日：2021-06-24

申请号：US17190814

申请日：2021-03-03

Applicant: NGK INSULATORS, LTD.

Inventor： Junki MATSUYA ,  Kenshin KITOH ,  Takeshi YAGI

IPC: H01M4/66 ,  H01M4/80 ,  H01M4/52 ,  H01M10/30 ,  H01M50/446 ,  H01M50/434 ,  H01M50/414

Abstract: Provided is a positive electrode structure for a secondary battery. This positive electrode structure includes: a positive electrode current collector composed of a tabular nickel foam and having a tabular coated portion and an uncoated portion extending from an outer peripheral portion of the coated portion; and a positive electrode active material containing nickel hydroxide and/or nickel oxyhydroxide incorporated into the coated portion of the positive electrode current collector. The positive electrode active material is not present in the uncoated portion of the positive electrode current collector, and the nickel foam constituting the uncoated portion is compressed so as to have a thickness of 0.10 times or more and less than 0.8 times a thickness of the nickel foam constituting the coated portion.