公开(公告)号：US09401527B2

公开(公告)日：2016-07-26

申请号：US14230100

申请日：2014-03-31

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki Saimen ,  Yuki Ito ,  Hayato Takahashi

IPC: H01M10/00 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M10/0525 ,  H01M10/0565 ,  Y02E60/122

Abstract: There are provided an electrolyte-positive electrode structure which comprises a thin solid electrolyte and can develop excellent capacity and output, and a lithium ion secondary battery comprising the same. An electrolyte-positive electrode structure 7 comprises: a positive electrode 4 comprising a positive electrode active material layer 3 formed on a current collector 2; and a solid electrolyte 6 containing inorganic particles having lithium ion conductivity, an organic polymer, and a polymer gel, in which the organic polymer binds the inorganic particles and can be impregnated with the polymer gel, and the polymer gel holds an electrolyte solution and is impregnated into the organic polymer, wherein the positive electrode active material layer 3 is integrated with the solid electrolyte 6 using the organic polymer as a medium.

Abstract translation: 提供了一种电解质 - 正电极结构，其包括薄的固体电解质并且可以开发出优异的容量和输出，以及包含该固体电解质的锂离子二次电池。 电解质 - 正极结构体7包括：正极4，包括形成在集电体2上的正极活性物质层3; 以及含有具有锂离子传导性的无机粒子，有机聚合物和聚合物凝胶的固体电解质6，其中有机聚合物与无机颗粒结合并可以用聚合物凝胶浸渍，并且聚合物凝胶保持电解质溶液，并且是 浸渍到有机聚合物中，其中使用有机聚合物作为介质将正极活性物质层3与固体电解质6一体化。

公开(公告)号：US11894541B2

公开(公告)日：2024-02-06

申请号：US16989909

申请日：2020-08-11

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takashi Nakagawa ,  Kazuki Saimen ,  Takeshi Fujino

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

CPC classification number: H01M4/0407 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0071

Abstract: Provided are an electrode for a lithium ion secondary battery, and a lithium ion secondary battery, in which a reduction in the permeability of an electrolyte solution and an increase in resistance even when the density of the electrode is increased, can be suppressed.
In the electrode for a lithium ion secondary battery, a layer in which the diffusion rate of an electrolyte solution is greater than in an active material layer is disposed between a current collector and an active material layer.
Specifically, the electrode for a lithium ion secondary battery includes a current collector, and an electrode active material layer containing an electrode active material, the electrode active material layer being formed on at least one side of the current collector, in which an electroconductive layer containing solid electrolyte particles and electroconductive particles is disposed between the current collector and the electrode active material layer.

公开(公告)号：US10581077B2

公开(公告)日：2020-03-03

申请号：US15794475

申请日：2017-10-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takahiro Komori ,  Ryogo Sakamoto ,  Akihisa Tanaka ,  Kazuki Saimen ,  Takuya Nishinuma ,  Toshio Tokune ,  Hidefumi Nikawa

IPC: H01M4/583 ,  H01M4/66 ,  H01M4/02

Abstract: Provided is an electrode for a secondary cell capable of obtaining excellent output values and input values when used in the secondary cell. The electrode for a secondary cell is formed of an electrode mixture layer molded body formed of an active material and at least one of a carbon nanotube and a three-dimensional carbon nanotube fiber bundle skeleton formed of a plurality of carbon nanotubes that intersect one another to form an aggregation, which are in intimate contact with the surface of the active material; and a current collector layered on the electrode mixture layer molded body. The electrode mixture layer molded body includes a first roughened surface, and the current collector includes a second roughened surface. The first roughened surface of the electrode mixture layer molded body and the second roughened surface of the current collector are pressed and attached to each other.

公开(公告)号：US12278360B2

公开(公告)日：2025-04-15

申请号：US17578460

申请日：2022-01-19

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki Saimen

IPC: H01M4/131 ,  H01M4/36 ,  H01M4/485 ,  H01M4/58 ,  H01M4/02

Abstract: Provided is a positive electrode including: a positive electrode current collector; and a positive electrode material mixture layer including a positive electrode active material and dielectric particles, the dielectric particles including ionically-conductive particles and non-ionically-conductive particles. Also provided is an electricity storage device including: the positive electrode; a negative electrode; and an electrolytic solution.

公开(公告)号：US12183920B2

公开(公告)日：2024-12-31

申请号：US17194307

申请日：2021-03-07

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki Saimen ,  Takashi Nakagawa ,  Yuka Nagatochi ,  Takeshi Fujino

IPC: H01M4/485 ,  H01M10/0525 ,  H01M4/02

Abstract: To provide a porous dielectric particle capable of achieving a lithium ion secondary battery having a high volumetric energy density, a high output, and being scarcely deteriorated in the output property even after charge and discharge are repeated, an electrode for a lithium ion secondary battery including the porous dielectric particle, and a lithium ion secondary battery using the electrode for a lithium ion secondary battery.
A porous dielectric oxide is used, and this is dispersed and disposed in gaps between active material particles of an electrode.
Specifically, as a particle to be blended in an electrode of a lithium ion secondary battery including an electrolytic solution, porous dielectric particles in which at least a part of a surface of porous core particles is coated with dielectric oxide is used.

公开(公告)号：US11417874B2

公开(公告)日：2022-08-16

申请号：US17050939

申请日：2019-03-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hidefumi Nikawa ,  Kazuki Saimen

IPC: H01M4/36 ,  H01M50/531 ,  H01M50/578 ,  H01M10/0562 ,  H01M4/02

Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).

公开(公告)号：US20210234156A1

公开(公告)日：2021-07-29

申请号：US17050939

申请日：2019-03-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hidefumi Nikawa ,  Kazuki Saimen

IPC: H01M4/36 ,  H01M50/578 ,  H01M50/531 ,  H01M10/0562 ,  H01M4/02

Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).