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91. 发明授权

US11495804B2 Air electrode catalyst for air secondary battery and air secondary battery 有权
公开(公告)号：US11495804B2
公开(公告)日：2022-11-08
申请号：US16781192
申请日：2020-02-04
申请人： FDK CORPORATION , JAPAN METALS AND CHEMICALS CO., LTD.
发明人： Shohei Unoki , Takeshi Kajiwara , Takahiro Endo , Shigekazu Yasuoka , Yoshikatsu Watanabe
IPC分类号： H01M4/90 , H01M12/08 , H01M4/38 , H01M4/02 , H01M4/86
摘要： An air electrode catalyst for an air secondary battery includes a pyrochlore-type composite oxide having two or more crystal structures having a different amount of oxygen. A battery, according to some embodiments, includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a container accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes the air electrode catalyst. The air electrode catalyst may have a pyrochlore-type composite oxide having a crystal structure represented by Bi2Ru2O6.92 and a crystal structure represented by Bi2Ru2O7.33.

92. 发明授权

US11355751B2 Air electrode for air secondary battery and air secondary battery 有权
公开(公告)号：US11355751B2
公开(公告)日：2022-06-07
申请号：US16665891
申请日：2019-10-28
申请人： FDK CORPORATION
发明人： Takeshi Kajiwara , Shohei Unoki , Takahiro Endo
IPC分类号： H01M4/505 , H01M4/24 , H01M4/525 , H01M12/08 , H01M4/38 , H01M4/86 , H01M4/90 , H01M4/02
摘要： A battery includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a battery case accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes an air electrode mixture containing a pyrochlore-type composite oxide and a manganese oxide, and the pyrochlore-type composite oxide is a bismuth-ruthenium oxide.

93. 发明申请

US20220123374A1 ALKALINE SECONDARY BATTERY 有权
公开(公告)号：US20220123374A1
公开(公告)日：2022-04-21
申请号：US17310729
申请日：2020-02-19
申请人： FDK CORPORATION
发明人： Hiroyuki Shibaoka
IPC分类号： H01M10/28 , H01M50/147 , H01M50/533 , H01M50/183 , H01M50/107 , H01M4/24
摘要： A nickel hydrogen secondary battery includes an electrode group including a positive electrode and a negative electrode that face each other via a separator, an outer package can that has an opening at an upper end thereof, and accommodates the electrode group therein together with an electrolyte, a sealing body including a cover plate fitted in the opening of the outer package can, and a positive electrode cap which is electrically connected to an outer surface of the cover plate, a positive electrode lead, one end portion of which is electrically connected to an inner surface of the cover plate and the other end portion of which is electrically connected to the positive electrode, and an oxygen block layer that covers at least a range where the one end portion of the positive electrode lead and the inner surface of the cover plate overlap each other, and suppresses permeation of oxygen therethrough, and a thickness of a thinnest portion of the oxygen block layer is 3 μm or more.

94. 发明申请

US20220069285A1 HYDROGEN ABSORBING ALLOY, NEGATIVE ELECTRODE COMPRISING SAME AND NICKEL-METAL HYDRIDE SECONDARY BATTERY COMPRISING SAME 有权
公开(公告)号：US20220069285A1
公开(公告)日：2022-03-03
申请号：US17446285
申请日：2021-08-27
申请人： FDK CORPORATION
发明人： Shota Ohata , Jun Ishida , Yuki Ehara , Masaru Kihara
IPC分类号： H01M4/134 , H01M10/054 , C22C19/03
摘要： 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.

95. 发明申请

US20210376617A1 BATTERY POLARITY DETERMINATION CIRCUIT, CHARGER, AND ELECTRONIC DEVICE 有权
公开(公告)号：US20210376617A1
公开(公告)日：2021-12-02
申请号：US17290772
申请日：2019-09-20
申请人： FDK CORPORATION
发明人： Kenji Kitamura , Yasunari Mizoguchi , Takashi Kanou
IPC分类号： H02J7/00 , H01M10/48 , H01M10/44 , G01R31/3832 , G01R19/14
摘要： A battery polarity determination circuit includes a battery accommodating unit including a first contact and a second contact to be in contact with respective electrode terminals of a battery, a control device that is connected via a resistor to a voltage lead-out point at which a voltage of the battery is led out and determines a polarity of the battery, a connection switching circuit capable of switching between a first connection state and a second connection state, and a diode having a cathode to be connected to a voltage read-in point at which the resistor and the control device are connected to each other, and an anode to be grounded, wherein the control device determines the polarity of the battery based on a voltage at the voltage read-in point according to the connection state of the connection switching circuit, and a forward voltage of the diode is set so that the voltage at the voltage read-in point is not less than a lower limit value of an absolute maximum rating of the control device.

96. 发明申请

US20210344069A1 SEALING GASKET AND TUBULAR BATTERY INCORPORATING SEALING GASKET 有权
公开(公告)号：US20210344069A1
公开(公告)日：2021-11-04
申请号：US17374993
申请日：2021-07-14
申请人： FDK CORPORATION
发明人： Tatsuya Yamazaki , Shigeyuki Kuniya
IPC分类号： H01M50/183 , H01M6/02 , H01M50/152 , H01M50/171
摘要： A sealing gasket used in a tubular battery includes a disc-shaped partition portion; an outer peripheral portion provided to stand from a peripheral edge of the partition portion and held between an open end of a metal battery can and a dish-shaped metal sealing plate; and a plurality of stress buffer portions formed of annular grooves formed concentrically in the partition portion, wherein the tubular battery includes the metal battery can having a bottomed tubular shape and has the open end subjected to inward diameter reduction, a power generation element housed in the battery can, the dish-shaped metal sealing plate fitted and attached to the open end subjected to the inward diameter reduction, and the sealing gasket made of resin and held between the open end and the sealing plate.

97. 发明申请

US20210257674A1 ALKALINE STORAGE BATTERY AND METHOD FOR MANUFACTURING THE ALKALINE STORAGE BATTERY 有权
公开(公告)号：US20210257674A1
公开(公告)日：2021-08-19
申请号：US17158711
申请日：2021-01-26
申请人： FDK CORPORATION
发明人： Akira Saguchi
IPC分类号： H01M10/28 , H01M4/04 , H01M50/107 , H01M10/04 , H01M50/131
摘要： An alkaline storage battery includes a spiral electrode group in which a positive electrode plate, a negative electrode plate, and a separator arranged between the positive electrode plate and the negative electrode plate are laminated, the negative electrode plate is located on the inner peripheral side of the positive electrode plate at an innermost peripheral portion, and an electrically conductive outer packaging can in which the spiral electrode group is accommodated together with an alkaline electrolytic solution. The negative electrode plate includes a negative electrode core body, a first negative electrode mixture layer carried on a surface on the outer peripheral side of the negative electrode core body, and a second negative electrode mixture layer carried on a surface on the inner peripheral side of the negative electrode core body. The negative electrode core body has a burr protruding toward the outer peripheral side at an edge portion of an innermost peripheral portion of the negative electrode core body. The thickness of the edge portion of an innermost peripheral portion of the first negative electrode mixture layer is smaller than the thickness of a portion other than the edge portion of the first negative electrode mixture layer. The height of the burr is 30% or less of the thickness of the separator.

98. 发明授权

US11043664B2 Negative electrode for alkaline secondary battery, and alkaline secondary battery 有权
公开(公告)号：US11043664B2
公开(公告)日：2021-06-22
申请号：US16383048
申请日：2019-04-12
申请人： FDK CORPORATION
发明人： Toshiki Sato , Jun Ishida , Akira Saguchi , Shota Ohata
IPC分类号： H01M4/24 , H01M4/36 , H01M4/62 , H01M4/38 , H01M10/28 , H01M4/02
摘要： A battery comprises an electrode group including a separator, a positive electrode and a negative electrode. The negative electrode comprises a negative electrode core, negative electrode mixture layers retained to the negative electrode core, and a fluorine resin layer disposed on the surface of the negative electrode mixture layers. The negative electrode mixture layers include a first outermost peripheral region located at the outermost periphery of the electrode group and a second outermost peripheral region located opposite to the first outermost peripheral region. When the amount of the fluorine resin constituting a first fluorine resin layer in a portion of the first outermost peripheral region is represented by A, and the amount of the fluorine resin constituting a second fluorine resin layer in a portion of the second outermost peripheral region is represented by B, a relation A>B is satisfied.

99. 发明申请

US20210036530A1 AUTOMATIC CHARGER 有权
公开(公告)号：US20210036530A1
公开(公告)日：2021-02-04
申请号：US17045906
申请日：2019-04-10
申请人： FDK CORPORATION
发明人： Takashi Kanou , Kenji Kitamura , Yasunari Mizoguchi , Kunihisa Sekiguchi
IPC分类号： H02J7/00 , H01M10/44 , G01R31/396 , G01R31/389
摘要： A sorting mechanism includes a flap that selects a first path connecting from a battery outlet of a charging section to a battery inlet of a first compartment section as a path to introduce a first battery to the first compartment section in a case of housing the first battery in the first compartment section, and that selects a second path connecting from the battery outlet of the charging section to a battery inlet of a second compartment section as a path to introduce a second battery to the second compartment section in a case of housing the second battery in the second compartment section.

100. 发明申请

US20200313125A1 BATTERY MODULE 审中-公开
公开(公告)号：US20200313125A1
公开(公告)日：2020-10-01
申请号：US16770520
申请日：2018-11-15
申请人： FDK CORPORATION
发明人： Yunosuke Fukuda , Naoto Kawaguchi , Yoshiro Saito
IPC分类号： H01M2/10
摘要： 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.

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