公开(公告)号：US20160285136A1

公开(公告)日：2016-09-29

申请号：US15075484

申请日：2016-03-21

Applicant: HITACHI, LTD.

Inventor： Makoto ABE

IPC: H01M10/42 ,  H01M10/613 ,  H01M10/0525 ,  H01M10/48

CPC classification number: H01M10/625 ,  H01M10/0525 ,  H01M10/42 ,  H01M2220/20 ,  Y02E60/122

Abstract: The deterioration-progression determination circuit is configured to determine progression of deterioration of the secondary battery. The controller is configured to control at least upper limit temperature of the secondary battery. The control-value change determination unit is configured to control a change of the upper limit temperature, and configured to set the upper limit temperature of the secondary battery to equal to or more than an initial value based on a result of comparison between a deterioration level of the secondary battery and an estimated deterioration level.

Abstract translation: 劣化进行判定电路被配置为确定二次电池的劣化的进行。 控制器被配置为至少控制二次电池的上限温度。 控制值变更确定单元被配置为控制上限温度的变化，并且被配置为基于劣化程度的比较结果将二次电池的上限温度设定为初始值以上 的二次电池和估计的劣化水平。

公开(公告)号：US20230361691A1

公开(公告)日：2023-11-09

申请号：US18026526

申请日：2021-08-03

Applicant: Hitachi, Ltd.

Inventor： Ryou MOTEKI ,  Hisashi MOROOKA ,  Shintarou TAKEDA ,  Makoto ABE ,  Hiroshi KAMIZUMA ,  Kinya NAKATSU

IPC: H02M7/48 ,  H05K7/20

CPC classification number: H02M7/48 ,  H05K7/2089

Abstract: Please substitute the new Abstract submitted herewith for the original Abstract: This power conversion unit includes a cooling path positioned between an input-side power converter and an output-side power converter arranged separately on two sides that face each other. The input-side and output-side power converters include: a mold resin filled into a space on the inside of housings; a switching element covered by the mold resin, an upper electrode plate connected to the switching element, and a heat dissipation plate having insulating properties connected to the upper electrode plate; and a lower electrode provided near the cooling path. The mold resin is an organopolysiloxane having a three-dimensionally crosslinked structure after curing, in which the elastic modulus at room temperature is 0.1 MPa or greater, and the value when the hardness after curing is 10 or greater as measured using a durometer type E.

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：US20180246172A1

公开(公告)日：2018-08-30

申请号：US15758506

申请日：2016-06-16

Applicant: HITACHI, LTD.

Inventor： Makoto ABE ,  Takanori YAMAZOE

IPC: G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC classification number: G01R31/3842 ,  G01R31/392 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4292 ,  H01M2220/20 ,  H02J7/0047

Abstract: In a power storage system equipped with a secondary battery, a control system of the secondary battery includes a unit which detects an index indicating a degradation state of a positive electrode, a unit which detects an index indicating a degradation state of a negative electrode, a unit which calculates a difference between the index of the positive electrode and the index of the negative electrode, a unit which determines a sign of the difference, and a unit which changes an operation condition of the secondary battery according to the sign. With this configuration, in the control of the secondary battery, it is possible to avoid a life estimation accuracy from being decreased while using a processor which has a high-speed processing performance and inexpensive.

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.

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.