公开(公告)号：US20220268616A1

公开(公告)日：2022-08-25

申请号：US17630183

申请日：2020-09-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Hideyuki FUKUI

IPC: G01F11/26

Abstract: A powder supply apparatus includes a measuring shaft having a recess to be filled with powder, and a powder filling mechanism for filling the recess of the measuring shaft with the powder. The powder supply apparatus includes a rotary cylinder for sliding the measuring shaft along an axis of the measuring shaft, and a distal-end cover plate of a cylinder where the powder in the recess is leveled off by a slide of the measuring shaft. The rotary cylinder directs the recess downward by rotating the measuring shaft about the axis of the measuring shaft and supplies the leveled powder in the recess downward from the recess to a lifting plate at a predetermined position by dropping the powder.

公开(公告)号：US20200009607A1

公开(公告)日：2020-01-09

申请号：US16482409

申请日：2018-02-05

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Sousuke NISHIURA ,  Takeshi SUGIYO ,  Hideyuki FUKUI

IPC: B05D1/06 ,  B05C19/04 ,  B05B5/025 ,  B41F15/40

Abstract: A powder film forming method includes the steps of: filling an opening with a powder, the opening being formed in a screen plate; and forming the powder film by generating an electric potential difference between the screen plate and a substrate so as to cause the powder, which is filling the opening, to move to the substrate.

公开(公告)号：US20230352724A1

公开(公告)日：2023-11-02

申请号：US18245379

申请日：2020-09-23

Applicant: HITACHI ZOSEN CORPORATION ,  OHKITA SEISAKUSYO

Inventor： Kenji OKAMOTO ,  Tsuyoshi NISHIMURA ,  Hideyuki FUKUI ,  Yoshifumi OHKITA ,  Kouji OHKITA

IPC: H01M10/04 ,  H01M50/105

CPC classification number: H01M10/049 ,  H01M50/105

Abstract: The present invention includes an outer package and contents accommodated in the outer package. The contents include an electrode body. The outer package substantially uniformly applies pressing force to each of the front surface and the rear surface of the contents due to the elastic force of the outer package.

公开(公告)号：US20200076002A1

公开(公告)日：2020-03-05

申请号：US16468111

申请日：2017-12-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Kenji OKAMOTO ,  Hideyuki FUKUI

IPC: H01M10/0585

Abstract: The present invention provides an all-solid state secondary cell equipped with: a positive electrode collector; a negative electrode collector; and a powder laminate placed between the positive electrode collector and the negative electrode collector. The powder laminate has: a positive electrode powder layer; a negative electrode powder layer; and solid electrolyte layers that are placed between the positive electrode powder layer and the negative electrode powder layer, and also cover the outer periphery of the positive electrode powder layer and the negative electrode powder layer. The powder laminate comprises a peripheral edge part, and a center part surrounded by this peripheral edge part. The thickness of the peripheral edge part is the thickness of the center part or greater.

公开(公告)号：US20180198169A1

公开(公告)日：2018-07-12

申请号：US15738358

申请日：2016-04-27

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Hideyuki FUKUI ,  Shiken RYOU ,  Yasushi TAKANO

IPC: H01M10/0585 ,  H01M10/04 ,  H01M10/0562 ,  H01M10/0565 ,  H01M4/64

CPC classification number: H01M10/0585 ,  H01M4/64 ,  H01M10/02 ,  H01M10/0436 ,  H01M10/0486 ,  H01M10/0562 ,  H01M10/0565 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0065

Abstract: The present invention provides an all-solid-state secondary battery and a method for producing the same, wherein it is possible to prevent the collapse of a laminate due to a shearing force occurring in the peripheral portion of the laminate when the laminate is pressed, and the occurrence of an internal short circuit can be prevented. The all-solid-state secondary battery includes a laminate and a plate-shaped insulating member both arranged between the positive electrode collector and the negative electrode collector. The laminate includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The plate-shaped insulating member is arranged around the laminate and contacted at least with the solid electrolyte layer to electrically insulate the positive electrode layer from the negative electrode layer. In the insulating member, a contact inner edge portion contacted with the laminate is thicker than a plate-shaped portion on the outer side.

公开(公告)号：US20210280843A1

公开(公告)日：2021-09-09

申请号：US17251676

申请日：2019-07-11

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Takeshi SUGIYO ,  Kenji OKAMOTO ,  Hideyuki FUKUI

IPC: H01M4/04 ,  H01M4/139 ,  H01M10/0562 ,  H01M10/0585

Abstract: Provided is an installation for manufacturing an all-solid secondary battery provided with a powder laminate including stacked powder films. The manufacturing installation includes a mixer for mixing multiple kinds of powder materials and a conveying device for conveying a powder material mixed by the mixer. The manufacturing installation also includes an electrostatic film-forming device for forming the powder films from the powder material conveyed by the conveying device, by using at least an electrostatic force. In the manufacturing installation, a process of forming the powder laminate from the multiple kinds of powder materials is a dry process.

公开(公告)号：US20210057777A1

公开(公告)日：2021-02-25

申请号：US16958461

申请日：2018-12-21

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Takeshi SUGIYO ,  Hideyuki FUKUI

IPC: H01M10/0562 ,  H01M10/0585

Abstract: The present invention prevents edge collapse of an electrode layer of a laminated body included in an all-solid-state battery. A method of producing an all-solid-state battery includes: a laminated body forming step of forming a laminated body (310) including (i) a positive electrode layer (302), (ii) a negative electrode layer (304) having a polarity opposite of a polarity of the positive electrode layer (302); and (iii) a solid-electrolyte layer (303) disposed between the positive electrode layer (302) and the negative electrode layer (304); and a cutoff step of cutting off an outer peripheral edge of the laminated body (310) so as to form a laminated body containing a powder material.

公开(公告)号：US20190051935A1

公开(公告)日：2019-02-14

申请号：US16080557

申请日：2017-02-24

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Kenji OKAMOTO ,  Hideyuki FUKUI ,  Yasushi TAKANO ,  Hirokazu KAWASE

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/36 ,  H01M4/70

Abstract: A method for manufacturing an all-solid state secondary battery including a plurality of provisional battery bodies, the method including: forming each of the plurality of provisional battery bodies by pressing a positive-electrode mixture, a solid electrolyte, and a negative-electrode mixture that are stacked between a pair of electrode current collectors and pressure-molding the stacked provisional battery bodies with the electrode current collectors facing each other. The electrode current collectors facing each other have rough surfaces.

公开(公告)号：US20170144429A1

公开(公告)日：2017-05-25

申请号：US15323531

申请日：2015-06-26

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Hideyuki FUKUI ,  Kenji OKAMOTO ,  Yasushi TAKANO

IPC: B41F15/12 ,  B41F15/36 ,  B41M1/42 ,  B41F15/44

CPC classification number: B41F15/12 ,  B41F15/08 ,  B41F15/0881 ,  B41F15/36 ,  B41F15/44 ,  B41M1/42 ,  B41P2215/50 ,  G03G17/00

Abstract: An electrostatic screen printer includes: an electrically conductive screen arranged in non-contact with a printing medium; sponges for rubbing a powder into the screen; and a direct current power source for applying a voltage to the printing medium and the powder, wherein the powder rubbed into the screen is adhered to the printing medium by electrostatic induction. The electrostatic screen printer includes a rotation mechanism for rotating the sponges, a parent revolution mechanism for parent revolution of the sponges, and a child revolution mechanism for child revolution of the sponges. The revolution speed ratio of the child revolution to the parent revolution may preferably be 4.0 or greater, a scraper is provided on the parent revolution mechanism so as to be interlocked with the revolution of the sponges, and the scraper is arranged so as to scrape the powder on the screen toward an axis of the parent revolution

公开(公告)号：US20240299961A1

公开(公告)日：2024-09-12

申请号：US18261444

申请日：2021-10-20

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Kenji OKAMOTO ,  Hideyuki FUKUI

IPC: B05B5/16 ,  B05B5/00 ,  B05B5/025 ,  B05B12/20 ,  B05B15/50 ,  H01M4/04 ,  H01M10/0562 ,  H01M10/058

CPC classification number: B05B5/1683 ,  B05B5/005 ,  B05B5/0255 ,  B05B12/20 ,  B05B15/50 ,  H01M4/0404 ,  H01M10/0562 ,  H01M10/058

Abstract: There is provided an electrostatic film formation device including a powder feeder feeding powder, a substrate on which a powder film is to be formed from the powder, and a DC power supply applying voltage to the powder feeder and the substrate. The DC power supply applies the voltage to draw the powder from the powder feeder to the substrate with electrostatic force. The electrostatic film formation device further includes a masking member disposed between the powder feeder and the substrate. The masking member is formed with a passing port allowing the powder to pass from the powder feeder to the substrate. The masking member is disposed in the state where the masking member is not in contact with the powder film to be formed.