公开(公告)号：US20230261204A1

公开(公告)日：2023-08-17

申请号：US18194677

申请日：2023-04-03

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi MATSUBAYASHI ,  Sota SHIMIZU ,  Eri ASANO ,  Eiichi HIRAYAMA

IPC: H01M4/62 ,  H01M4/36 ,  H01M50/417 ,  H01M12/08 ,  H01M4/38 ,  H01M4/48 ,  H01M50/451 ,  H01M50/431

CPC classification number: H01M4/628 ,  H01M4/364 ,  H01M50/417 ,  H01M12/08 ,  H01M4/38 ,  H01M4/48 ,  H01M50/451 ,  H01M50/431 ,  H01M2004/027

Abstract: Provided is a negative electrode for use in a zinc secondary battery, including a negative electrode active material containing ZnO particles and Zn particles, and a nonionic water-absorbing polymer in an amount of 0.01 to 6.0 parts by weight on a solid basis, based on the content of the ZnO particles being 100 parts by weight.

公开(公告)号：US20230387401A1

公开(公告)日：2023-11-30

申请号：US18361959

申请日：2023-07-31

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi HAYASHI ,  Hiroshi MATSUBAYASHI ,  Sota SHIMIZU

IPC: H01M4/42 ,  H01M4/04 ,  H01M10/0585

CPC classification number: H01M4/42 ,  H01M4/0435 ,  H01M10/0585 ,  H01M2004/021

Abstract: Provided is a negative electrode for use in a zinc secondary battery, including a negative electrode active material layer having a first surface and a second surface, and a negative electrode current collector plate embedded in the negative electrode active material layer parallel to the negative electrode active material layer. The first surface of the negative electrode active material layer is more remote from the negative electrode current collector plate than the second surface, whereby the center of the negative electrode active material layer in a thickness direction is deviated from a reference plane passing through the center of the negative electrode current collector plate in a thickness direction. A ratio of a thickness defined as a distance between the second surface and the reference plane to a thickness defined as a distance between the first surface and the reference plane is greater than 0 and 0.5 or less.

公开(公告)号：US20250015295A1

公开(公告)日：2025-01-09

申请号：US18890967

申请日：2024-09-20

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi MATSUBAYASHI ,  Sota SHIMIZU ,  Toshiki HIRAIWA ,  Eiichi HIRAYAMA

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/24 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M10/30 ,  H01M10/42 ,  H01M12/08

Abstract: Provided is a negative electrode for use in a zinc secondary battery, including ZnO particles, metallic Zn particles having an average particle diameter D50 of 85 to 250 μm, and Bi2O3 particles having an average major axis diameter of 0.3 to 8.5 μm, in which the content of the metallic Zn particles is 1.0 to 87.5 parts by weight and the content of the Bi2O3 particles is 0.5 to 20 parts by weight, based on the content of the ZnO particles being 100 parts by weight.

公开(公告)号：US20210193989A1

公开(公告)日：2021-06-24

申请号：US17188259

申请日：2021-03-01

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi HAYASHI ,  Naomi SAITO ,  Eri ASANO ,  Hiroshi MATSUBAYASHI

IPC: H01M4/24 ,  H01M12/08 ,  H01M10/30 ,  H01M4/32 ,  H01M4/48 ,  H01M4/42 ,  H01M4/62

Abstract: Provided is a negative electrode for use in a zinc secondary battery containing (A) ZnO particles and (B) at least two selected from the group consisting of (i) metallic Zn particles having an average particle size D50 of 5 to 80 μm, (ii) at least one metal element selected from In and Bi, and (iii) a binder resin having a hydroxyl group.

公开(公告)号：US20230261251A1

公开(公告)日：2023-08-17

申请号：US18194684

申请日：2023-04-03

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi MATSUBAYASHI ,  Sota SHIMIZU ,  Eiichi HIRAYAMA ,  Sana IWAI

IPC: H01M10/054 ,  H01M4/52 ,  H01M4/48 ,  H01M4/38 ,  H01M4/36 ,  H01M4/62 ,  H01M50/489 ,  H01M50/46 ,  H01M50/431 ,  H01M12/08

CPC classification number: H01M10/054 ,  H01M4/523 ,  H01M4/483 ,  H01M4/38 ,  H01M4/364 ,  H01M4/622 ,  H01M50/489 ,  H01M50/46 ,  H01M50/431 ,  H01M12/08 ,  H01M2004/027

Abstract: Provided is a negative electrode for use in a zinc secondary battery, including a negative electrode active material containing ZnO particles and Zn particles, and a nonionic water-absorbing polymer, and at least a portion of the ZnO particles is covered with the nonionic water-absorbing polymer.