公开(公告)号：US20220238891A1

公开(公告)日：2022-07-28

申请号：US17647975

申请日：2022-01-13

Applicant: HONDA MOTOR CO., LTD. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Kiyoshi TANAAMI ,  Toshimitsu TANAKA ,  Yuji ISOGAI ,  Kazuki OKUNO ,  Akihisa HOSOE ,  Hiroshi TAKEBAYASHI

IPC: H01M4/80 ,  H01M4/66

Abstract: Provided is an electrode including: a current, collector; an electrode material mixture; and an electrode tab, the current collector being a porous metal body having a region A and a region B with a porosity lower than that of the region A, the region A having pores filled with the electrode material mixture, the electrode tab being fixed on the region B, the region A having a subregion A1 and a subregion A2 with a porosity lower than that of the subregion A1, the subregion A2 being more distant from the electrode tab than the subregion A1. Also provided is an electricity storage device including the electrode.

公开(公告)号：US20220216508A1

公开(公告)日：2022-07-07

申请号：US17645993

申请日：2021-12-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Toshimitsu TANAKA ,  Kiyoshi TANAAMI ,  Takuya TANIUCHI ,  Toshiyuki ARIGA

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/80

Abstract: To provide an electrode for a lithium ion secondary battery that can improve the diffusivity of lithium ions in an electrode material mixture when a metal porous body is used as a current collector, thereby improving the output characteristics and durability of the battery. A positive electrode 1 and a negative electrode 2, which are electrodes, respectively include a current collector 11 and a current collector 21 each including a metal porous body having communicating pores V, and an electrode material mixture 13 and an electrode material mixture 23, with which at least the pores V of the metal porous body are filled. At least an electrode active material and ionic conductor particles are dispersed in the electrode material mixtures 13 and 23. The ionic conductor particles are preferably oxide solid electrolyte particles.

公开(公告)号：US20210376404A1

公开(公告)日：2021-12-02

申请号：US17332977

申请日：2021-05-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kiyoshi TANAAMI ,  Shintaro AOYAGI ,  Yuji ISOGAI

IPC: H01M10/653 ,  H01M10/613 ,  H01M4/64 ,  H01M10/0525 ,  H01M10/654

Abstract: To provide a battery cell structure capable of improving heat dissipation without degradation of an energy density and an obstacle to size reduction while an electrode layer of a battery cell has sufficient heat transfer properties. The present invention relates to a cell structure including a positive/negative electrode formed in such a manner that a conductive base member having a three-dimensional structure contains an electrode active material and a collector formed continuously to the positive/negative electrode. One surface of the collector is formed continuously in a longitudinal direction of the positive/negative electrode (across a large area), and the other surface of the collector is exposed in a longitudinal direction of the cell structure (across a large area).

公开(公告)号：US20220231329A1

公开(公告)日：2022-07-21

申请号：US17577356

申请日：2022-01-17

Applicant: HONDA MOTOR CO., LTD.

Inventor： Toshiyuki ARIGA ,  Takuya TANIUCHI ,  Masahiro OHTA ,  Toshimitsu TANAKA ,  Kiyoshi TANAAMI

IPC: H01M10/0562 ,  H01M10/04 ,  H01M50/109 ,  H01M50/153 ,  H01M50/169 ,  H01M4/76 ,  H01M4/66

Abstract: To provide a current collecting structure capable of reliably collecting current while maintaining a pressurized and constrained state of a coin-type all-solid-state battery. A coin-type all-solid-state battery includes a solid electrolyte layer; a pair of first electrode current collectors each including a metal porous body, the first electrode current collectors being respectively disposed on both sides of the solid electrolyte layer; a pair of second electrode current collectors each including a metal porous body, the second electrode current collectors being respectively disposed on outer sides of the first electrode current collectors; and a pair of lid members being respectively disposed on outer sides of the pair of second electrode current collectors.

公开(公告)号：US20220013783A1

公开(公告)日：2022-01-13

申请号：US17368764

申请日：2021-07-06

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kiyoshi TANAAMI ,  Makiko TAKAHASHI ,  Tomohiro KINOSHITA ,  Shintaro AOYAGI ,  Yuji ISOGAI ,  Takashi MUKAI ,  Yuta IKEUCHI ,  Taichi SAKAMOTO ,  Naoto YAMASHITA

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/38 ,  H01M4/139

Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode that can suppress a deterioration in durability and improve energy density, and a non-aqueous electrolyte secondary battery including the same. A non-aqueous electrolyte secondary battery negative electrode, comprising: a collector formed of a porous metal body, and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises a negative electrode active material formed of a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductivity aid, and a binder.

公开(公告)号：US20210257627A1

公开(公告)日：2021-08-19

申请号：US17167105

申请日：2021-02-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kiyoshi TANAAMI ,  Yuji ISOGAI ,  Makiko TAKAHASHI ,  Shintaro AOYAGI

IPC: H01M4/80 ,  H01M4/66 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/587

Abstract: Provided is an electrode including a metal foam as a current collector for obtaining a lithium-ion secondary battery having a high energy density. More particularly, provided is a lithium-ion secondary battery electrode that achieves improved input/output properties (power density) and improved durability, and a lithium-ion secondary battery including the lithium-ion secondary battery electrode. An electrode is formed by providing, in an electrode layer, a region having an excessive amount of an electrolytic solution by forming a region where a current collector made of a metal foam contains no electrode material mixture.

公开(公告)号：US20220246942A1

公开(公告)日：2022-08-04

申请号：US17585586

申请日：2022-01-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Kiyoshi TANAAMI ,  Masahiro OHTA ,  Toshiyuki ARIGA ,  Toshimitsu TANAKA

IPC: H01M4/66 ,  H01M50/531 ,  H01M4/80 ,  H01M4/13 ,  H01M10/0525

Abstract: There is provided an electrode including: a current collector; an electrode material mixture; a plate-shaped metal body having a through-hole formed therethrough; a resin provided inside the through-hole; and an electrode tab, the current collector being a porous metal body, the current collector having pores filled with the electrode material mixture, the electrode tab being an extending portion extending from the plate-shaped metal body, wherein the current collector has an inner region in which the through-hole of the metal plate-shaped body is located in top view. There is also provided an electricity storage device including the electrode.

公开(公告)号：US20220231302A1

公开(公告)日：2022-07-21

申请号：US17572512

申请日：2022-01-10

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kiyoshi TANAAMI ,  Toshimitsu TANAKA ,  Yuji ISOGAI

IPC: H01M4/66 ,  H01M4/36

Abstract: Provided is an electrode including: a current collector; and an electrode material mixture, the current collector being a porous metal body, the current collector having pores filled with the electrode material mixture, the electrode material mixture including an electrode active material and porous aggregates of a conductive aid. Also provided is an electricity storage device including: the electrode; and an electrolytic solution.

公开(公告)号：US20210288328A1

公开(公告)日：2021-09-16

申请号：US17194322

申请日：2021-03-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kiyoshi TANAAMI ,  Yuji ISOGAI ,  Makiko TAKAHASHI ,  Shintaro AOYAGI

IPC: H01M4/66 ,  H01M10/0525

Abstract: To provide an electrode for a lithium ion secondary battery being an electrode for obtaining a lithium ion secondary battery including a foamed metal as a current collector and having a high energy density, and further capable of improving durability and input/output characteristics (output density), and a lithium ion secondary battery using the electrode for a lithium ion secondary battery.
A porous coating layer is disposed on an electrode layer of the electrode for a lithium ion secondary battery using a current collector made of a foamed metal, an electrolytic solution extruded from the electrode layer due to expansion of a negative electrode active material can be absorbed and trapped in the coating layer.

公开(公告)号：US20210288323A1

公开(公告)日：2021-09-16

申请号：US17196985

申请日：2021-03-09

Applicant: HONDA MOTOR CO., LTD.

Inventor： Makiko TAKAHASHI ,  Tomohiro KINOSHITA ,  Kiyoshi TANAAMI ,  Shintaro AOYAGI ,  Takashi MUKAI ,  Yuta IKEUCHI ,  Taichi SAKAMOTO ,  Naoto YAMASHI TA

IPC: H01M4/58

Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode material which can improve a battery life as compared with a conventional one, a non-aqueous electrolyte secondary battery negative electrode including such a negative electrode material and a non-aqueous electrolyte secondary battery including such a negative electrode. A non-aqueous electrolyte secondary battery negative electrode material that includes a negative electrode active material formed of a silicon-based material a skeleton-forming agent including a silicate having a siloxane bond and an interface layer formed in an interface between the negative electrode active material and the skeleton-forming agent and formed of an inorganic material, a non-aqueous electrolyte secondary battery negative electrode including it and a non-aqueous electrolyte secondary battery are provided.