公开(公告)号：US20160134139A1

公开(公告)日：2016-05-12

申请号：US14936094

申请日：2015-11-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daiki TERASHIMA

IPC: H02J7/00

CPC classification number: H02J7/0031

Abstract: A battery system includes: an alkali secondary battery in which a negative electrode open-circuit potential remains constant within a predetermined SOC range; a temperature sensor configured to detect a temperature of the battery; a current sensor; a voltage sensor; and a controller configured to set an upper limit power value that is discharged from the alkali secondary battery, the controller being configured to: calculate a negative electrode potential of the alkali secondary battery based on the negative electrode open-circuit potential, a resistance value of a negative electrode of the alkali secondary battery, the resistance value being specified from the temperature, and the current value; calculate a positive electrode potential of the alkali secondary battery based on the negative electrode potential and the voltage value; and reduce the upper limit power value below a reference power value when the positive electrode potential is equal to or lower than a threshold.

Abstract translation: 电池系统包括：负极开路电位在预定的SOC范围内保持恒定的碱性二次电池; 温度传感器，被配置为检测所述电池的温度; 电流传感器; 电压传感器; 以及控制器，其被配置为设定从所述碱性二次电池排出的上限功率值，所述控制器被配置为：基于所述负极开路电位来计算所述碱性二次电池的负极电位， 碱性二次电池的负极，电阻值由温度指定，电流值; 基于负极电位和电压值计算碱性二次电池的正极电位; 并且当所述正极电位等于或低于阈值时，将所述上限功率值减小到低于参考功率值。

公开(公告)号：US20240213461A1

公开(公告)日：2024-06-27

申请号：US18288255

申请日：2022-04-27

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuki CHUJO ,  Tomohiro NAKAMURA ,  Kyohei MATSUURA ,  Yutaro KAWABATA ,  Takayuki HIROSE ,  Motoaki OKUDA ,  Takeo OKANISHI ,  Motoyoshi OKUMURA ,  Hiroyuki KAIYA ,  Masashi KODAMA ,  Daiki TERASHIMA ,  Masanobu OUCHI ,  Koh YOSHIOKA ,  Shinichirou HORIE ,  Toshifumi KOYANAGI

IPC: H01M4/38 ,  H01M4/24 ,  H01M4/28 ,  H01M4/66 ,  H01M10/34 ,  H01M4/02

CPC classification number: H01M4/383 ,  H01M4/242 ,  H01M4/28 ,  H01M4/661 ,  H01M4/667 ,  H01M4/669 ,  H01M10/345 ,  H01M2004/029

Abstract: A bipolar electrode (100) for a metal hydride battery includes a current collector (10), a negative electrode active material layer (20) provided on a first surface (10A) of the current collector (10), and a positive electrode active material layer (30) provided on a second surface (10B) of the current collector (10). The negative electrode active material layer (20) contains a metal hydride. The current collector (10) includes a steel sheet (13) and a Ni—Fe alloy layer (15) formed on at least one surface of the steel sheet (13).

公开(公告)号：US20220376351A1

公开(公告)日：2022-11-24

申请号：US17771050

申请日：2020-10-20

Applicant: AUTONETWORKS TECHNOLOGIES, LTD. ,  SUMITOMO WIRING SYSTEMS, LTD. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki MATSUMURA ,  Hiroki SHIMODA ,  Motoyoshi OKUMURA ,  Takuro KIKUCHI ,  Satoshi MORIOKA ,  Daiki TERASHIMA

IPC: H01M50/296 ,  H01G11/22 ,  H01G11/78 ,  H01M50/209 ,  H01M50/548 ,  H01M50/553 ,  H01M50/503 ,  H01M50/298 ,  H01M50/574 ,  H01M50/588 ,  H01M50/591

Abstract: A power storage module includes power storage elements having electrode surfaces of positive electrode surfaces and negative electrode surfaces on front and back surfaces thereof, a conductive member electrically connected to the electrode surfaces of the power storage elements, and a wiring module electrically connected to the conductive member. The power storage elements are arranged in an arrangement direction such that the electrode surfaces of the power storage elements that are adjacent to each other are opposed to each other. The electrode surfaces of the power storage elements that are adjacent to each other are electrically connected by the conductive member that is disposed between the power storage elements that are adjacent to each other. The wiring module is disposed between the power storage elements that are adjacent to each other. The conductive member and the wiring module are disposed inside an outline of the power storage elements seen from the arrangement direction.

公开(公告)号：US20220093956A1

公开(公告)日：2022-03-24

申请号：US17417908

申请日：2019-12-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daiki TERASHIMA ,  Satoshi MORIOKA ,  Takuro KIKUCHI ,  Motoyoshi OKUMURA ,  Kojiro TAMARU ,  Hiromi UEDA ,  Satoshi HAMAOKA ,  Masahiro YAMADA

IPC: H01M10/04 ,  H01M10/30 ,  H01M10/613 ,  H01M10/6557 ,  H01M10/6563

Abstract: The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack. At least one of the power storage units is provided with an overhang member on an outer peripheral surface of the sealing member. The overhang member includes an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion formed at a lower end of the inclined portion.

公开(公告)号：US20250167212A1

公开(公告)日：2025-05-22

申请号：US18730434

申请日：2023-01-24

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroyuki SASAKI ,  Satoshi KONO ,  Shuhei MOCHIDA ,  Keisuke SHIRAI ,  Norifumi YOSHIDA ,  Yoshifumi ISHIKAWA ,  Takeo OKANISHI ,  Daiki TERASHIMA ,  Masanobu OUCHI ,  Hiroyuki KAIYA ,  Motoyoshi OKUMURA ,  Hiroyuki NAKANO

IPC: H01M4/32 ,  H01M4/02 ,  H01M4/04 ,  H01M4/26 ,  H01M4/36 ,  H01M4/52 ,  H01M4/62 ,  H01M10/34

Abstract: A method for producing a nickel metal hydride battery includes a positive electrode producing step of layering a raw material composition including a positive electrode active material powder containing nickel hydroxide, a cobalt compound, and flake graphite, on a current collector to produce a positive electrode including a positive electrode active material layer in which a graphitization degree is 0.4 or less as measured by Raman spectroscopy. The method further includes a negative electrode producing step of layering a raw material composition including a negative electrode active material powder on a current collector to produce a negative electrode, an electrode body producing step of arranging a separator between the positive electrode and the negative electrode and impregnating the separator with an electrolytic solution to produce an electrode body, and an overdischarging step of charging, overdischarging, and again charging the electrode body.