公开(公告)号：US12009474B2

公开(公告)日：2024-06-11

申请号：US17266353

申请日：2019-08-16

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Shoichi Matsuda

IPC: H01M10/056 ,  H01M12/08

CPC classification number: H01M10/056 ,  H01M12/08 ,  H01M2300/0028

Abstract: The invention relates to an electrolyte capable of improving the energy efficiency of a lithium air battery, and a lithium air battery using the electrolyte. An electrolyte for lithium air batteries according to the invention includes an amide-based organic solvent and lithium nitrate, wherein the concentration of lithium nitrate in the amide-based organic solvent satisfies a range of no less than 2 mol/L to no greater than 5.5 mol/L. A lithium air battery according to the invention includes an air electrode, a negative electrode including a lithium metal, and an electrolyte located between the air electrode and the negative electrode, wherein the electrolyte is provided by the aforesaid electrolyte.

公开(公告)号：US12072314B2

公开(公告)日：2024-08-27

申请号：US16980955

申请日：2019-03-26

Applicant: National Institute for Materials Science

Inventor： Shuji Nakanishi ,  Shoichi Matsuda

IPC: G01N27/42 ,  G01N27/30 ,  G01N35/02

CPC classification number: G01N27/42 ,  G01N27/30 ,  G01N35/02

Abstract: An electrochemical measurement system (1) includes: an insertion mechanism (4) which is capable of moving relative to a microplate (2) having a plurality of reactors which are arrayed and which contain a respective plurality of types of solutions, the plurality of types of solutions being mixtures of a plurality of types of mother liquids in different proportions; and a microelectrode unit (19) which is attached to the insertion mechanism (4) such that the microelectrode unit (19) is capable of being inserted into the plurality of types of solutions contained in the plurality of reactors.

公开(公告)号：US20220255085A1

公开(公告)日：2022-08-11

申请号：US17611984

申请日：2020-05-21

Applicant: National Institute for Materials Science

Inventor： Eiki Yasukawa ,  Takashi Kameda ,  Shoichi Matsuda ,  Shoji Yamaguchi ,  Shin Kimura ,  Kimihiko Ito ,  Yoshimi Kubo

IPC: H01M4/86 ,  H01M4/88 ,  H01M4/96 ,  H01M12/06

Abstract: The present invention addresses the problem of providing: a porous carbon structure that has a high micropore volume and can be self-contained; a manufacturing method therefor; a positive electrode material using the same; and a battery (particularly an air battery) using the same. The present invention is a porous carbon structure that is for a positive electrode for an air battery and has voids and a skeleton formed by incorporating carbon, the porous carbon structure satisfying all of the following conditions (a) to (d). (a) The t-plot external specific surface area is within the range of 300m2/g to 1600m2/g; (b) the total volume of micropores having a diameter of lnm to 200 nm is within the range of 1.2 cm3/g to 7.0cm3/g; (c) the total volume of micropores having a diameter of lnm to 1000 nm is within the range of 2.3cm3/g to 10.0 cm3/g; and (d) the overall porosity is within the range of 80% to 99%.