公开(公告)号：US20220355258A1

公开(公告)日：2022-11-10

申请号：US17764595

申请日：2020-10-09

Applicant: Hitachi, Ltd.

Inventor： Jun TANAKA ,  Tomonari MISAWA ,  Yusuke KAGA ,  Yoshiki YONAMOTO

IPC: B01F29/62 ,  B01F23/60 ,  B01F35/213 ,  G01N21/85

Abstract: A powder mixing system and method improves productivity of a final product by reducing time required for completion of mixing. The powder mixing system includes a mixing vessel provided with a rotating shaft for mixing multiple kinds of powder, a rotating machine for rotating the mixing vessel by means of the rotating shaft, an image photographing device for acquiring an image of the powder in a mixing process, and a computer. The mixing vessel includes a window through which the image of the powder is photographed. The computer has a function of detecting that the mixing vessel is located at a predetermined position. The image photographing device acquires the image of the powder through the window of the mixing vessel located at the predetermined position. The computer estimates a mixing state of the powder based on the acquired image of the powder.

公开(公告)号：US20180159103A1

公开(公告)日：2018-06-07

申请号：US15831527

申请日：2017-12-05

Applicant: HITACHI, LTD.

Inventor： Kazuaki NAOE ,  Yusuke KAGA ,  Shimpei AMASAKI ,  Makoto ABE ,  Etsuko NISHIMURA ,  Akihiko NOIE

IPC: H01M2/16 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0585

CPC classification number: H01M2/166 ,  H01G11/52 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1673 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585

Abstract: Provided is a secondary battery having better performance. The secondary battery includes: a negative electrode; a positive electrode; an insulating layer; and a structure having pores each configured to carry an electrolyte, in which: the negative electrode and the positive electrode are alternately laminated on each other through intermediation of the insulating layer; and the structure is arranged in a region which is sandwiched between two of the insulating layers and faces at least part of an edge of the positive electrode, and includes a material different from a material of the insulating layer.

公开(公告)号：US20200014062A1

公开(公告)日：2020-01-09

申请号：US16454381

申请日：2019-06-27

Applicant: Hitachi, Ltd.

Inventor： Yusuke KAGA ,  Motoyuki HIROOKA ,  Etsuko NISHIMURA ,  Eiji SEKI ,  Shimpei AMASAKI

IPC: H01M10/0562 ,  H01M4/139 ,  H01M4/66 ,  H01M4/36 ,  H01M4/04

Abstract: Provided is a battery cell sheet and a secondary battery that can prevent a variation in an electrolyte composition due to volatilization and do not cause a decrease in battery performance even in a case where a component with high volatility is used. The battery cell sheet includes: an electrode that includes an electrode current collector, and electrode mixture layers respectively formed on both upper and lower surfaces of the electrode current collector; a first semi-solid electrolyte layer and a second semi-solid electrolyte layer that are respectively laminated on upper and lower surfaces of the electrode; a first sealing sheet and a second sealing sheet that respectively adhere to and cover a surface of each semi-solid electrolyte layer opposite to a surface thereof laminated with the electrode, and seal the electrode with both of the first semi-solid electrolyte layer and the second semi-solid electrolyte layer; a non-aqueous solution that is provided between each of the electrode mixture layers of the electrode and each semi-solid electrolyte layer; and a sealing portion that is provided at an end side portion of each of the first sealing sheet and the second sealing sheet.

公开(公告)号：US20180172584A1

公开(公告)日：2018-06-21

申请号：US15833075

申请日：2017-12-06

Applicant: Hitachi, Ltd.

Inventor： Takuya KANBAYASHI ,  Shinichi TANIGUCHI ,  Akihiro NOJIMA ,  Yusuke KAGA

IPC: G01N21/53 ,  G01N21/01

CPC classification number: G01N21/534 ,  G01N21/01 ,  G01N21/1717 ,  G01N2021/1729 ,  G01N2201/023

Abstract: The invention optically analyzes a component in a sample having a material suspended. An optical analysis system that irradiates a liquid sample with light and analyzes a component of the sample using transmitted light transmitted through the sample includes a container accommodating the sample and an ultrasonic irradiation unit irradiating an ultrasonic wave for exciting the sample. The container includes a pair of light transmission wall portions between which the sample is disposed and which has light transmissivity, and one of the light transmission wall portions and the other of the light transmission wall portions are disposed to be separated from each other at a distance shorter than a wavelength of the ultrasonic wave.

公开(公告)号：US20240102925A1

公开(公告)日：2024-03-28

申请号：US18274583

申请日：2021-11-30

Applicant: Hitachi, Ltd.

Inventor： Yasuko KOBAYASHI ,  Jun TANAKA ,  Takuya KAMBAYASHI ,  Yusuke KAGA ,  Shunsuke KONO ,  Kotaro KITAMURA ,  Makiko UDAGAWA ,  Hiroki MIYAKAWA

IPC: G01N21/3554 ,  C02F1/00 ,  C02F11/12

CPC classification number: G01N21/3554 ,  C02F1/008 ,  C02F11/12 ,  C02F2209/006 ,  G01N2201/12753

Abstract: A moisture content measurement method that calculates moisture content of dehydrated sludge using a calibration curve for calculating the moisture content of the dehydrated sludge, the calibration curve being obtained by performing multivariate regression analysis after first-order differential processing or an offset correction is performed on absorbance for reflected light or reflectance for infrared rays from dehydrated sludge, the absorbance or the reflectance being obtained by measuring the dehydrated sludge using an infrared measurement apparatus provided with a light-receiving unit that can receive at least infrared rays reflected from a target object to be measured and a light source that has a plurality of infrared LEDs that can emit infrared rays having respectively different wavelengths or a light source having an infrared-region tungsten lamp or halogen lamp.

公开(公告)号：US20190006678A1

公开(公告)日：2019-01-03

申请号：US15935165

申请日：2018-03-26

Applicant: Hitachi, Ltd.

Inventor： Kazuaki NAOE ,  Yusuke KAGA ,  Shimpei AMASAKI ,  Makoto ABE ,  Etsuko NISHIMURA ,  Akihiko NOIE

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/1399

Abstract: Proposed are a secondary battery, a half cell and a production method of a secondary battery capable of exhibiting the designed battery capacity. In a secondary battery comprising an electrode containing an electrode active material and a binding agent, and an electrolyte, the electrolyte contains an electrolytic solution, the electrode further contains the electrolytic solution, and a binding agent amount on a surface of the electrode active material is smaller than an average of the binding agent amount of the electrode.

公开(公告)号：US20180123162A1

公开(公告)日：2018-05-03

申请号：US15797334

申请日：2017-10-30

Applicant: Hitachi, Ltd.

Inventor： Yusuke KAGA ,  Kazuaki NAOE ,  Shimpei AMASAKI ,  Masashi NISHIKI ,  Makoto ABE ,  Etsuko NISHIMURA ,  Akihiko NOIE

IPC: H01M10/04 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2/02 ,  H01M2/14

CPC classification number: H01M10/0468 ,  H01G11/12 ,  H01G11/56 ,  H01G11/60 ,  H01G11/62 ,  H01G11/76 ,  H01G11/82 ,  H01M2/0277 ,  H01M2/14 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0585 ,  H01M2300/0065

Abstract: Provided is a secondary battery having high utilization efficiency per unit volume. The secondary battery includes: an electrode laminate in which a positive electrode layer and a negative electrode layer are laminated on each other through intermediation of an insulating layer; a pair of support plates configured to sandwich the electrode laminate therebetween; and a column body which is sandwiched between the pair of support plates at both ends thereof and adhered to the pair of support plates.