公开(公告)号：US20210384499A1

公开(公告)日：2021-12-09

申请号：US17333632

申请日：2021-05-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya WASEDA ,  Jun YOSHIDA ,  Hiroyuki KAWAURA ,  Yasuhito KONDO ,  Ryo SUZUKI ,  Hiroyuki NAKANO ,  Nobuhiro OGIHARA

IPC: H01M4/38 ,  C01B33/02

Abstract: A main object of the present disclosure is to provide a method for producing an active material with a high productivity. The present disclosure achieves the object by providing a method for producing an active material, the method comprising steps of: a preparing step of preparing a dope solution including a metal ion that is an ion of a metal element M, and an aromatic hydrocarbon compound in a reduced condition, a precursor alloy producing step of producing a precursor alloy by doping the metal element M included in the dope solution to a Si raw material including a Si element, and a void forming step of forming a void by extracting the metal element M from the precursor alloy using an extracting agent.

公开(公告)号：US20190081325A1

公开(公告)日：2019-03-14

申请号：US16122607

申请日：2018-09-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhisa TAKEDA ,  Hideaki OKA ,  Norihiko SETOYAMA ,  Yasuhito KONDO

IPC: H01M4/583 ,  H01M10/0525 ,  C01B32/184 ,  H01M4/62 ,  H01M2/16 ,  H01M2/30

Abstract: A graphite material for a negative electrode of a lithium ion secondary cell disclosed herein is substantially configured of a graphite particle in which defects enabling intercalation/deintercalation of lithium ions have been formed on a basal plane and which includes a calcium (Ca) component.

公开(公告)号：US20220181694A1

公开(公告)日：2022-06-09

申请号：US17457336

申请日：2021-12-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Katsuhiko NAGAYA ,  Shinobu OKAYAMA ,  Nobuhiro OGIHARA ,  Yasuhito KONDO ,  Tsuyoshi SASAKI

IPC: H01M10/0568 ,  H01M10/0569

Abstract: A main object of the present disclosure is to provide a composition capable of conveniently feeding carrier ions which contribute to charge and discharge. The present disclosure achieves the object by providing an electrolyte solution-containing liquid composition for use to feed carrier ions to a non-aqueous electrolyte secondary battery, the electrolyte solution-containing liquid composition comprises a liquid composition including a solvent and a dissolved substance; and an electrolyte solution, a content of the electrolyte solution in the electrolyte solution-containing liquid composition is 30% by volume or more and 50% by volume or less, the solvent includes 1,2-dimethoxyethane, the dissolved substance includes an ionic compound, the ionic compound is composed of a radical anion of an aromatic compound and a metal cation, the aromatic compound is polyacene or polyphenyl, and the metal cation being an ion of the same type as the carrier ions.

公开(公告)号：US20200287204A1

公开(公告)日：2020-09-10

申请号：US16804893

申请日：2020-02-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroyuki KAWAURA ,  Yasuhito KONDO ,  Yoshinari MAKIMURA ,  Tetsuya WASEDA ,  Masaki ADACHI ,  Jun YOSHIDA ,  Hiroyuki YAMAGUCHI

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01G11/30

Abstract: A negative electrode active substance material used for an electricity storage device of the present disclosure includes a silicon phase and a silicide phase represented by a basic composition formula MSi2, where M is one or more of Cr, Ti, Zr, Nb, Mo, and Hf. The negative electrode active substance material may have a structure in which the silicide phase is dispersed in the silicon phase.

公开(公告)号：US20240043966A1

公开(公告)日：2024-02-08

申请号：US18490865

申请日：2023-10-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroyuki KAWAURA ,  Yasuhito KONDO ,  Ryo SUZUKI ,  Hiroshi NOZAKI ,  Jun YOSHIDA ,  Tetsuya WASEDA ,  Mitsutoshi OTAKI

IPC: C22C1/08 ,  H01M10/0525 ,  C22C1/10 ,  C22C29/18

CPC classification number: C22C1/08 ,  H01M10/0525 ,  C22C1/1094 ,  C22C29/18

Abstract: The manufacturing method of a porous silicon material of the present disclosure includes a particle forming step of melting a raw material containing Al as a first element in an amount of 50% by mass or more and Si in an amount of 50% by mass or less to obtain a silicon alloy, a pore forming step of removing the first element from the silicon alloy to obtain a porous material, and a heat treatment step of heating the porous material to diffuse elements other than Si to a surface of the porous material.

公开(公告)号：US20230021456A1

公开(公告)日：2023-01-26

申请号：US17898659

申请日：2022-08-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Katsuhiko NAGAYA ,  Shinobu OKAYAMA ,  Yukimasa NISHIDE ,  Nobuhiro OGIHARA ,  Yasuhito KONDO ,  Tsuyoshi SASAKI

IPC: H01M10/42 ,  H01M10/0568 ,  H01M10/44 ,  H01M10/0569

Abstract: A liquid composition is for use to feed carrier ions to a non-aqueous electrolyte secondary battery. The liquid composition includes a solvent and a dissolved substance. The dissolved substance includes an ionic compound. The ionic compound consists of a radical anion of an aromatic compound and a metal cation. The aromatic compound is a polyacene or a polyphenyl. The metal cation is an ion of the same type as the carrier ions.

公开(公告)号：US20210083334A1

公开(公告)日：2021-03-18

申请号：US17004247

申请日：2020-08-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Katsuhiko NAGAYA ,  Shinobu OKAYAMA ,  Yukimasa NISHIDE ,  Nobuhiro OGIHARA ,  Yasuhito KONDO ,  Tsuyoshi SASAKI

IPC: H01M10/42 ,  H01M10/0569 ,  H01M10/44 ,  H01M10/0568

Abstract: A liquid composition is for use to feed carrier ions to a non-aqueous electrolyte secondary battery. The liquid composition includes a solvent and a dissolved substance. The dissolved substance includes an ionic compound. The ionic compound consists of a radical anion of an aromatic compound and a metal cation. The aromatic compound is a polyacene or a polyphenyl. The metal cation is an ion of the same type as the carrier ions.