公开(公告)号：US12283656B2

公开(公告)日：2025-04-22

申请号：US17431939

申请日：2019-05-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ayako Kondo ,  Daisuke Shishihara ,  Yuki Takeuchi ,  Suguru Miyamoto ,  Hideaki Hikosaka ,  Hidetoshi Mizutani

IPC: H01M10/0562 ,  H01M50/443 ,  H01B1/12 ,  H01M4/62 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/414 ,  H01M50/431

Abstract: An ion conductor exhibiting high lithium ion conductivity in the form of a molded product without firing is provided. The ion conductor contains an ion conductive powder having lithium ion conductivity and an ionic liquid having lithium ion conductivity. The ionic liquid has an average thickness of 5 nm or more.

公开(公告)号：US12300780B2

公开(公告)日：2025-05-13

申请号：US17636704

申请日：2020-06-24

Applicant: NGK Spark Plug Co., LTD.

Inventor： Manato Uchida ,  Daisuke Shishihara ,  Hideaki Hikosaka ,  Hiroshi Yamamoto ,  Ayako Kondo ,  Suguru Miyamoto ,  Hidetoshi Mizutani

IPC: H01M10/0562 ,  H01M10/0525

Abstract: To enhance lithium ion conductivity in an electrode for a power storage device, and at the interface between the electrode and another member. The power storage device electrode includes an oxide-based lithium ion conductive solid electrolyte, an active material, and an ionic liquid.

公开(公告)号：US11011776B2

公开(公告)日：2021-05-18

申请号：US15858362

申请日：2017-12-29

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yuki Takeuchi ,  Hirofumi Ando ,  Daisuke Shishihara ,  Hidetoshi Mizutani

IPC: H01M10/0562 ,  C04B35/48 ,  C04B35/626 ,  C04B35/64 ,  H01M10/0525 ,  C04B35/486 ,  H01M4/62 ,  H01M10/052

Abstract: [OBJECTS]
An object of the present invention is to provide a lithium-ion-conductive ceramic material having a target ion conductivity, while suppressing production cost. Another object is to provide a high-performance lithium battery, while suppressing production cost, by virtue of having the lithium-ion-conductive ceramic material.
The lithium-ion-conductive ceramic material contains Li, La, and Zr, as well as at least one of Mg and A (wherein A represents at least one element selected from the group consisting of Ca, Sr, and Ba) and which has a garnet-type crystal structure, wherein the elements contained in the ceramic material satisfy the following mole ratio conditions (1) to (3): (1) 1.33≤Li/(La+A)≤3; (2) 0

公开(公告)号：US12087905B2

公开(公告)日：2024-09-10

申请号：US17042742

申请日：2019-04-23

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yuki Takeuchi ,  Manato Uchida ,  Yuta Iga ,  Daisuke Shishihara ,  Hideaki Hikosaka ,  Hidetoshi Mizutani

IPC: H01M10/0562 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M12/02

CPC classification number: H01M10/0562 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M12/02 ,  H01M2300/0071

Abstract: Provided is an ionic conductor with which adhesion between particles can be enhanced simply by pressure-molding a powder without using sulfide ionic conductors and without performing firing or vapor deposition, and which can exhibit a high lithium ionic conductivity. This ionic conductor contains, in addition to an oxide lithium ionic conductor, a complex hydride.