公开(公告)号：US20180151881A1

公开(公告)日：2018-05-31

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

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：US20140302399A1

公开(公告)日：2014-10-09

申请号：US14230100

申请日：2014-03-31

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki SAIMEN ,  Yuki ITO ,  Hayato TAKAHASHI

IPC: H01M10/056 ,  H01M10/0525

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：US20220328934A1

公开(公告)日：2022-10-13

申请号：US17616183

申请日：2019-06-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki SAIMEN ,  Takashi NAKAGAWA ,  Takeshi FUJINO

IPC: H01M50/48 ,  H01M10/0525 ,  H01M4/04 ,  H01M50/46

Abstract: Provided are electrolytic solution absorbing particles that have an electrolytic solution retention property and can increase a lithium ion transport characteristic, as well as a self-supporting sheet that includes the same, a lithium-ion secondary battery electrode that includes the same, a separator that uses the same, and a lithium-ion secondary battery that uses the same. These particles are particles wherein a resin layer that can absorb an electrolytic solution is provided on a surface of a highly dielectric oxide solid. Specifically, these particles are electrolytic solution absorbing particles that have the resin layer that can absorb the electrolytic solution on the surface of the highly dielectric oxide solid.

公开(公告)号：US20220255058A1

公开(公告)日：2022-08-11

申请号：US17578460

申请日：2022-01-19

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki SAIMEN

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

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：US20220166006A1

公开(公告)日：2022-05-26

申请号：US17456159

申请日：2021-11-22

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki SAIMEN

IPC: H01M4/36 ,  H01M4/587 ,  H01M10/0525

Abstract: The present disclosure is intended to provide a negative electrode for a lithium-ion secondary battery, the negative electrode being capable of reducing an increase in internal resistance even when charge-discharge cycles are repeated, and enabling production of a lithium-ion secondary battery with excellent durability against the charge-discharge cycles. A negative electrode for a lithium-ion secondary battery includes: an electrode material mixture layer including graphite particles as a negative electrode active material, and a high dielectric inorganic solid. The graphite particles include graphite particles A having an average particle diameter and graphite particles B having a different average particle diameter. The graphite particles each include, on a surface thereof, a portion in contact with the high dielectric inorganic solid and a portion in contact with an electrolytic solution.

公开(公告)号：US20210057713A1

公开(公告)日：2021-02-25

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 ,  H01M10/0562 ,  H01M10/0525

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：US20140065489A1

公开(公告)日：2014-03-06

申请号：US13968919

申请日：2013-08-16

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuki SAIMEN ,  Yuki ITO

IPC: H01M4/62 ,  H01M10/0565 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/386 ,  H01M4/387 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/058 ,  H01M2300/0071 ,  H01M2300/0082 ,  H01M2300/0091

Abstract: There are provided a constitution which can suppress a decrease in the cycle performance in repetition of charging and discharging, and a lithium ion secondary battery comprising the constitution. An electrolyte-negative electrode structure (7) comprises: a negative electrode (4) in which a negative electrode active material layer (3) comprising a material capable of intercalating lithium ions is formed on a current collector (2); and a solid electrolyte (6) comprising an inorganic particle having lithium ion conductivity, a polymer gel to be impregnated with an electrolyte solution, and an organic polymer acting as a binder for the inorganic particle and being capable of being impregnated with the polymer gel, wherein the negative electrode active material layer (3) and the solid electrolyte (6) are unified through the organic polymer as a medium.

Abstract translation: 提供了可以抑制重复充放电时的循环性能的降低的结构和包括该结构的锂离子二次电池。 电解液负极结构（7）包括：在集电体（2）上形成有负极活性物质层（3）的负极（4），负极活性物质层（3）包含能够插入锂离子的材料; 和包含具有锂离子传导性的无机颗粒的固体电解质（6），浸渍电解质溶液的聚合物凝胶和作为无机颗粒的粘合剂的有机聚合物，并且能够浸渍聚合物凝胶， 其中负极活性物质层（3）和固体电解质（6）通过作为介质的有机聚合物一体化。

公开(公告)号：US20240332751A1

公开(公告)日：2024-10-03

申请号：US18586557

申请日：2024-02-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Toshiyuki ARIGA ,  Kazuki SAIMEN

IPC: H01M50/538 ,  H01M10/04 ,  H01M50/105

CPC classification number: H01M50/538 ,  H01M10/0431 ,  H01M50/105

Abstract: A secondary battery according to the present invention includes: an electrode laminate having positive electrode layers, negative electrode layers, and a separator; an exterior body; a positive electrode terminal and a negative electrode terminal provided in the exterior body; a lead wire connecting between the positive electrode layers and the positive electrode terminal; and a lead wire connecting between the negative electrode layers and the negative electrode terminal. The separator has an extension portion extending outward beyond end portions of the positive electrode layers on a side connected with the positive electrode terminal. At least a part of a portion in contact with negative electrode layers on a surface of the separator on the negative electrode layer side is configured as a conductive region, and at least a part of an end portion of the extension portion on the positive electrode terminal side is configured as a nonconductive region.

公开(公告)号：US20230096153A1

公开(公告)日：2023-03-30

申请号：US17909761

申请日：2020-03-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takeshi FUJINO ,  Kazuki SAIMEN

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/04 ,  H01M50/46

Abstract: Provided are: a lithium-ion secondary battery electrode with which it is possible to realize a battery having high volume energy density and in which capacity reduction due to repeated charging and discharging is suppressed even when the amount of electrolytic solution held by the electrode is low; a lithium-ion secondary battery using said electrode; and a method for manufacturing the lithium-ion secondary battery electrode. A lithium-ion secondary battery electrode in which a highly dielectric oxide solid and the electrolytic solution are positioned in the gaps between active material particles of an electrode mixture layer, wherein: the electrode mixture layer is prepared without using water that is reactive with the highly dielectric oxide solid; and the arrangement of the highly dielectric oxide solid in the electrode mixture layer is specified.

公开(公告)号：US20210288319A1

公开(公告)日：2021-09-16

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

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.