公开(公告)号：US10897059B2

公开(公告)日：2021-01-19

申请号：US15735355

申请日：2016-07-01

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Satoshi Hori ,  Yuki Kato

IPC: H01M10/0562 ,  H01M10/052 ,  H01B1/10 ,  C01B33/32 ,  H01M10/0525 ,  H01M10/0585

Abstract: The problem of the present invention is to provide a sulfide solid electrolyte material with favorable reduction resistance. The present invention solves the problem by providing a sulfide solid electrolyte material having a peak at a position of 2θ=30.26°±1.00° in X-ray diffraction measurement using a CuKα ray, and having a composition of Li(4−x−4y)Si(1−x+y)P(x)S(4−2a−z)O(2a+z) (a=1−x+y, 0.65≤x≤0.75, −0.025≤y≤0.1, −0.2≤z≤0).

公开(公告)号：US10541443B2

公开(公告)日：2020-01-21

申请号：US15742563

申请日：2016-07-08

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Yuki Inoue

IPC: H01M10/0562 ,  H01M10/052 ,  H01M4/64 ,  C01B25/14 ,  H01B1/10 ,  H01M4/02

Abstract: (Problem to be Solved) A solid electrolyte material with favorable ion conductivity is demanded from the viewpoint of the higher output of a battery. The present invention was made in view of the above-described problems, with an object of providing a sulfide solid electrolyte material with favorable Li ion conductivity and providing a lithium battery including the sulfide solid electrolyte material. (Solution) There are provided: a solid electrolyte including a sulfide-based solid electrolyte represented by a composition formula: (Li2S)x(MS2)y(P2S5)z, in which M is at least one selected from the group consisting of Ge, Sb, Si, Sn, B, Al, Ga, In, Zr, V, and Nb, and 0.53≤x≤0.74, 0.13≤y≤0.37, 0.04≤z≤0.15, and x+y+z=1 are satisfied; and a lithium battery including the solid electrolyte.

公开(公告)号：US09595715B2

公开(公告)日：2017-03-14

申请号：US14369507

申请日：2012-12-27

Applicant: National University Corporation Okayama University ,  Tokyo Institute of Technology ,  Kyoto University

Inventor： Jun Takada ,  Hideki Hashimoto ,  Tatsuo Fujii ,  Makoto Nakanishi ,  Ryoji Kanno ,  Genki Kobayashi ,  Mikio Takano

IPC: H01M4/88 ,  H01M4/525 ,  H01M4/52 ,  H01M4/131 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/523 ,  H01M4/5825 ,  H01M4/621 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525 ,  H01M2220/30 ,  Y02E60/122

Abstract: This invention relates to an anode active material comprising at least one iron oxide selected from the group consisting of amorphous iron oxides, ferrihydrite, and lepidocrocite. The invention also relates to a lithium ion secondary battery anode material comprising the anode active material as a constituent component, a lithium ion secondary battery anode comprising the lithium ion secondary battery anode material, and a lithium ion secondary battery comprising the lithium ion secondary battery anode.

Abstract translation: 本发明涉及一种负极活性材料，其包含至少一种选自无定形氧化铁，铁水合物和锂铁矿石的氧化铁。 本发明还涉及包含负极活性物质作为构成成分的锂离子二次电池负极材料，包含锂离子二次电池负极材料的锂离子二次电池负极材料和锂离子二次电池负极 。

公开(公告)号：US11973183B2

公开(公告)日：2024-04-30

申请号：US17049136

申请日：2019-03-01

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Satoshi Hori ,  Shinya Shiotani

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2300/0068

Abstract: A sulfide solid electrolyte is capable of suppressing a decrease in Li ion conductivity due to moisture. A sulfide solid electrolyte includes a Li element, a P element, a S element and an O element, and having a granular shape, and including a crystal portion oriented along the granular shape, on an inner surface of the sulfide solid electrolyte.

公开(公告)号：US11152641B2

公开(公告)日：2021-10-19

申请号：US16327804

申请日：2017-08-23

Applicant: Tokyo Institute of Technology

Inventor： Ryoji Kanno ,  Masaaki Hirayama ,  Kota Suzuki ,  Yulong Sun ,  Satoshi Hori

IPC: H01M10/0562 ,  C01B33/00 ,  C01G19/00 ,  H01M6/18 ,  C04B35/547 ,  H01B1/06 ,  C01D15/00 ,  H01M10/0525

Abstract: Provided is a sulfide solid electrolyte material which has a composition that does not contain Ge, while having a smaller Li content than conventional sulfide solid electrolyte materials, and which has both lithium ion conductivity and chemical stability at the same time. A sulfide solid electrolyte which has a crystal structure represented by composition formula (Li3.45+β−4αSnα)(Si0.36Sn0.09)(P0.55−βSiβ)S4 (wherein α≤0.67, β≤0.33 and 0.43

公开(公告)号：US10461363B2

公开(公告)日：2019-10-29

申请号：US15319317

申请日：2015-06-08

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Masaaki Hirayama ,  Kota Suzuki ,  Satoshi Hori ,  Yuki Kato

IPC: H01M10/0562 ,  C01B25/14 ,  H01M4/62 ,  C01B17/22 ,  H01M10/052 ,  H01M10/0525

Abstract: A sulfide solid electrolyte material has favorable ion conductivity and resistance to reduction. The sulfide solid electrolyte material includes a peak at a position of 2θ=29.86°±1.00° in X-ray diffraction measurement using a CuKα ray, and a composition of Li2y+3PS4 (0.1≤y≤0.175).

公开(公告)号：US10020537B2

公开(公告)日：2018-07-10

申请号：US15426311

申请日：2017-02-07

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Masaaki Hirayama ,  Kota Suzuki ,  Huang Wenze

IPC: H01M10/0525 ,  H01M10/0562 ,  H01M10/058 ,  C01B17/22 ,  H01M10/052

CPC classification number: H01M10/0562 ,  C01B17/22 ,  C01P2002/72 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0068

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte material with favorable Li ion conductivity. To achieve the above object, the present disclosure provides a sulfide solid electrolyte material comprising a composition of Li(4+x)AlxSi(1−x)S4 (0

公开(公告)号：US20230238574A1

公开(公告)日：2023-07-27

申请号：US18159073

申请日：2023-01-24

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Tokyo Institute of Technology, a Japanese National University Corp

Inventor： Yong Sub Yoon ,  Sasaki Yuki ,  Sa Heum Kim ,  Ryoji Kanno ,  Hori Satoshi

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2300/0068

Abstract: Disclosed are a solid electrolyte material including a naturally abundant element as a base, having lithium ion conductivity equal or superior to those of conventional sulfide solid electrolyte materials, being relatively inexpensive, and having a crystal structure, a manufacturing method thereof, and a battery using the same. The solid electrolyte material may include a naturally abundant element as a base, have lithium ion conductivity equal or superior to those of conventional sulfide solid electrolyte materials, be relatively inexpensive, and have a crystal structure. The sulfide solid electrolyte material includes a sulfide compound represented by a formula of Li2−4x−ySi1+x−yPyS3, and x and y satisfy conditions −0.040≤x≤0.095 and 0.036≤y≤0.192.

公开(公告)号：US10741299B2

公开(公告)日：2020-08-11

申请号：US15749457

申请日：2016-07-15

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji Kanno ,  Satoshi Hori

IPC: H01B1/10 ,  C01B25/14 ,  H01M10/052 ,  H01M10/0562 ,  H01B1/06 ,  H01M4/62

Abstract: (Problem to be Solved) The present invention was made in view of the above-described problems, with an object of providing a Li—P—S-based sulfide solid electrolyte material with both excellent electrochemical stability and a high lithium ion conductivity, providing a method of producing the Li—P—S-based sulfide solid electrolyte material, and providing a lithium battery including the sulfide solid electrolyte material.(Solution) There is provided a sulfide solid electrolyte material including a Li element, a P element, and a S element and having peaks at positions of 2θ=17.90±0.20, 29.0±0.50, and 29.75±0.25′ in powder X-ray diffraction measurement using a Cu-Kα ray having an X-ray wavelength of 1.5418 Å, in which assuming that the diffraction intensity of the peak at 2θ=17.90±0.20 is IA and the diffraction intensity of the peak at 2θ=18.50±0.20 is IB, a value of IB/IA is less than 0.50.

公开(公告)号：US20150214572A1

公开(公告)日：2015-07-30

申请号：US14425249

申请日：2013-02-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Yuki Kato ,  Takamasa Otomo ,  Ryoji Kanno ,  Masaaki Hirayama

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01B1/10 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: A main object of the present invention is to provide a sulfide solid electrolyte whose reduction decomposition potential can be decreased more than a conventional LGPS-based sulfide solid electrolyte. The present invention is a sulfide solid electrolyte comprising Li, Al, Ge, P, and S, wherein M0=M2/M1 is 0

Abstract translation: 本发明的主要目的是提供一种比常规的基于LGPS的硫化物固体电解质降低分解电位的硫化物固体电解质。 本发明是包含Li，Al，Ge，P和S的硫化物固体电解质，其中M0 = M2 / M1为0