公开(公告)号：US11955834B2

公开(公告)日：2024-04-09

申请号：US18050942

申请日：2022-10-28

Applicant: FDK CORPORATION

Inventor： Shunichiro Sugimori ,  Naoaki Konda

IPC: H02J9/06 ,  H02J7/00

CPC classification number: H02J9/061 ,  H02J7/0013 ,  H02J7/007182

Abstract: A backup power supply device to be connected to a conduction path from an external power supply to an external load includes a plurality of secondary batteries connected in parallel, a plurality of charging switches that can individually pass and cut off charging power from the conduction path to the plurality of secondary batteries, and a control device for performing discharging control on the plurality of secondary batteries when the power supply voltage of the conduction path drops below a predetermined power failure detection threshold value. When battery voltages of the plurality of secondary batteries drop below a predetermined charging start threshold value, the control device performs charging control with a time difference set between charging start timings of the secondary batteries.

公开(公告)号：US20230393201A1

公开(公告)日：2023-12-07

申请号：US18201216

申请日：2023-05-24

Applicant: FDK CORPORATION

Inventor： Shunichiro Sugimori ,  Katsuhiko Tamaki

IPC: G01R31/367 ,  G01R31/387 ,  G01R31/374 ,  H02J9/06

CPC classification number: G01R31/367 ,  G01R31/387 ,  G01R31/374 ,  H02J9/061

Abstract: A power storage control apparatus includes a processor that computes a remaining charge time of a power storage apparatus that supplies power to a load apparatus operating by power supply from an external power source in case of a power supply emergency of the external power source, and the processor computes the remaining charge time of the power storage apparatus based on linear approximation of correlation between an operating environment of the power storage apparatus and a charge time of the power storage apparatus including a charge stop time.

公开(公告)号：US20230369688A1

公开(公告)日：2023-11-16

申请号：US18223729

申请日：2023-07-19

Applicant: FDK CORPORATION

Inventor： Akihiro MITANI ,  Satoshi HIGUCHI ,  Toshiaki NAKANO ,  Masakazu KOBAYASHI ,  Minako SUZUKI

IPC: H01M50/11 ,  H01M50/172 ,  H01M50/117 ,  H01M10/04 ,  H01M10/052 ,  H01M10/058

CPC classification number: H01M50/11 ,  H01M50/172 ,  H01M50/117 ,  H01M10/049 ,  H01M10/052 ,  H01M10/058

Abstract: A solid-state battery includes a solid-state battery body and a coating film. The solid-state battery body has an electrolyte layer containing a solid electrolyte, a positive electrode layer formed on a part of a first principal plane of the electrolyte layer, and a negative electrode layer formed on a part of a second principal plane of the electrolyte layer opposite to the first principal plane. The coating film has an insulating property and covers the solid-state battery body so as to expose a first portion of the positive electrode layer and a second portion of the negative electrode layer. The coating film has hardness higher than that of solid electrolytes contained in the solid-state battery body.

公开(公告)号：US11817573B2

公开(公告)日：2023-11-14

申请号：US17446285

申请日：2021-08-27

Applicant: FDK CORPORATION

Inventor： Shota Ohata ,  Jun Ishida ,  Yuki Ehara ,  Masaru Kihara

IPC: H01M10/00 ,  H01M4/134 ,  C22C19/03 ,  H01M10/054 ,  H01M4/02

CPC classification number: H01M4/134 ,  C22C19/03 ,  H01M10/054 ,  C22C2202/04 ,  H01M2004/027

Abstract: A nickel-metal hydride secondary battery includes an outer can and a group of electrodes housed in the outer can together with an alkaline electrolytic solution. The group of electrodes includes a positive electrode and a negative electrode that are superposed with a separator interposed therebetween, and the negative electrode includes a hydrogen absorbing alloy for nickel-metal hydride secondary batteries, the hydrogen absorbing alloy having a single composition and composed of a plurality of crystal phases.

公开(公告)号：US11811069B2

公开(公告)日：2023-11-07

申请号：US17660194

申请日：2022-04-21

Applicant: FDK CORPORATION

Inventor： Minori Inoue ,  Takeshi Kajiwara ,  Shohei Unoki ,  Takahiro Endo ,  Shigekazu Yasuoka ,  Yoshikatsu Watanabe

IPC: H01M4/86 ,  H01M10/26 ,  H01M4/90 ,  H01M4/02

CPC classification number: H01M4/8615 ,  H01M4/9016 ,  H01M4/9075 ,  H01M10/26 ,  H01M2004/027 ,  H01M2004/8689 ,  H01M2300/0014

Abstract: A battery includes: an electrode group including an air electrode and a negative electrode that are stacked with a separator interposed therebetween; and a container housing the electrode group together with an alkaline electrolyte liquid. The air electrode includes a catalyst for an air electrode. This catalyst for an air electrode is a catalyst for an air electrode including an oxide containing at least bismuth (Bi), ruthenium (Ru), sodium (Na), and oxygen, and Na/(Ru+Bi+Na) representing an atomic ratio of the sodium to a sum of the bismuth, the ruthenium, and the sodium is 0.126 or more and 0.145 or less.

公开(公告)号：US11742545B2

公开(公告)日：2023-08-29

申请号：US16770520

申请日：2018-11-15

Applicant: FDK CORPORATION

Inventor： Yunosuke Fukuda ,  Naoto Kawaguchi ,  Yoshiro Saito

IPC: H01M50/284 ,  H01M50/202 ,  H01M50/216

CPC classification number: H01M50/216 ,  H01M50/202 ,  H01M50/284 ,  H01M2220/30

Abstract: A battery module according to the present invention includes: a case body including a flat plate portion and a base portion projecting from the flat plate portion; a circuit board including a through-hole formed in a thickness direction and secured to the case body, the base portion being inserted into the through-hole; and a battery secured to and placed on the base portion, in which the battery is a flat battery with a coin shape or a button shape, and electrode plates connected to each of the positive and negative poles of the battery are connected to the circuit board to supply a power source to electronic components disposed on the circuit board.

公开(公告)号：US20230163624A1

公开(公告)日：2023-05-25

申请号：US18050942

申请日：2022-10-28

Applicant: FDK CORPORATION

Inventor： Shunichiro Sugimori ,  Naoaki Konda

IPC: H02J9/06 ,  H02J7/00

CPC classification number: H02J9/061 ,  H02J7/0013 ,  H02J7/007182

Abstract: A backup power supply device to be connected to a conduction path from an external power supply to an external load includes a plurality of secondary batteries connected in parallel, a plurality of charging switches that can individually pass and cut off charging power from the conduction path to the plurality of secondary batteries, and a control device for performing discharging control on the plurality of secondary batteries when the power supply voltage of the conduction path drops below a predetermined power failure detection threshold value. When battery voltages of the plurality of secondary batteries drop below a predetermined charging start threshold value, the control device performs charging control with a time difference set between charging start timings of the secondary batteries.

公开(公告)号：US20230133960A1

公开(公告)日：2023-05-04

申请号：US17938664

申请日：2022-10-06

Applicant: FDK CORPORATION

Inventor： Shun Mochizuki

IPC: H02J7/00 ,  G01R31/396

Abstract: A charging method for supplementarily charging a plurality of secondary batteries accommodated in a casing on a regular basis includes the steps of: charging the plurality of secondary batteries at the same time at the time of initial supplementary charging; acquiring each of peak temperatures during charging of the plurality of secondary batteries; listing combination patterns when the plurality of secondary batteries are split into a plurality of charging groups; predicting, for each of the combination patterns, each of the peak temperatures in a case in which charging is performed for each of the charging groups, on the basis of the peak temperatures at the time of the initial supplementary charging; and split-charging the plurality of secondary batteries in the combination pattern that minimizes a variation in the predicted peak temperatures.

公开(公告)号：US20220384786A1

公开(公告)日：2022-12-01

申请号：US17660387

申请日：2022-04-22

Applicant: FDK CORPORATION

Inventor： Akira Saguchi ,  Shota Ohata ,  Jun Ishida ,  Yuki Ehara ,  Masaru Kihara

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/30

Abstract: A nickel metal hydride secondary battery comprises an outer can and an electrode assembly housed in the outer can together with an alkaline electrolytic solution, wherein the electrode assembly is such that a positive electrode including a positive electrode mixture and a negative electrode including a negative electrode mixture are superimposed with a separator interposed therebetween, the positive electrode mixture includes nickel hydroxide forming a solid solution with zinc as a positive electrode active material and zinc oxide as a positive electrode additive, the negative electrode mixture includes hydrogen absorbing alloy particles and a negative electrode additive, the negative electrode additive is a composite in which yttrium fluoride is supported on carbon black, and a surface of the hydrogen absorbing alloy particles is partially coated with the composite.

公开(公告)号：US20220352564A1

公开(公告)日：2022-11-03

申请号：US17651408

申请日：2022-02-16

Applicant: FDK CORPORATION

Inventor： Takashi Kabasawa ,  Naoaki Konda ,  Yusuke Kusagaya

IPC: H01M10/42 ,  H01M10/48 ,  H01M10/46

Abstract: A transmission/reception path is configured to transmit a detection result sent from a sensor to a control device and external equipment connected to a connection terminal, and transmit a program for update transmitted from the external equipment to the control device via the connection terminal. The control device can perform update for updating a control program stored in a storage unit to the program for update transmitted from the external equipment via the connection terminal and the transmission/reception path.