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1. 发明申请

US20230112329A1 ALKALINE STORAGE BATTERY 有权
公开(公告)号：US20230112329A1
公开(公告)日：2023-04-13
申请号：US17905257
申请日：2021-03-09
申请人： FDK CORPORATION
发明人： Masaru Takasu
IPC分类号： H01M50/586 , H01M4/24 , H01M50/538
摘要： An alkaline storage battery of the present invention includes: an electrode group that includes a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode, which are stacked on top of each other; an outer can that is bottomed cylindrical shape having an opening at the top; a sealing body that seals the outer can; and a positive terminal electrically connected to the sealing body. The positive electrode includes a positive electrode body and a positive electrode protrusion protruding from a portion of the positive electrode body toward the sealing body to connect electrically to the sealing body. The negative electrode includes a negative electrode body and a negative electrode protrusion protruding from a portion of the negative electrode body toward the sealing body and terminating between the sealing body and the negative electrode body. The positive electrode and the negative electrode have a positive electrode active material and a negative electrode active material, respectively, in portions facing each other with the separator therebetween.

2. 发明授权

US11594740B2 Sealing gasket for cylindrical alkaline battery and cylindrical alkaline battery 有权
公开(公告)号：US11594740B2
公开(公告)日：2023-02-28
申请号：US16440964
申请日：2019-06-13
申请人： FDK CORPORATION
发明人： Tatsuya Yamazaki , Shigeyuki Kuniya
IPC分类号： H01M6/08 , H01M50/30 , H01M50/342 , H01M50/586 , H01M50/593 , H01M50/198 , H01M50/193 , H01M50/184 , H01M50/186 , H01M50/559
摘要： A resin sealing gasket 10 to be incorporated in an alkaline battery 1 housing a power generation element (3 to 5) in a cylindrical battery can 2 closed at a bottom, the sealing gasket configured to insulate a top opening of the battery can and a negative electrode terminal plate 7 from each other. The sealing gasket includes: an outer periphery part 14 standing upward from the rim of a disc-shaped partition part 13; a boss part 11 in a hollow cylindrical shape enabling a rod-shaped negative electrode current collector 6 to stand at the center of the partition part; and a thin-walled portion 15 formed in a groove shape along the outer periphery of the boss part and being thinner than other portions of the partition part.

3. 发明申请

US20220359884A1 CATALYST FOR AIR ELECTRODE, AIR ELECTRODE INCLUDING CATALYST FOR AIR ELECTRODE, AND AIR SECONDARY BATTERY INCLUDING AIR ELECTRODE 有权
公开(公告)号：US20220359884A1
公开(公告)日：2022-11-10
申请号：US17660194
申请日：2022-04-21
申请人： FDK CORPORATION
发明人： Minori Inoue , Takeshi Kajiwara , Shohei Unoki , Takahiro Endo , Shigekazu Yasuoka , Yoshikatsu Watanabe
IPC分类号： H01M4/86 , H01M10/26 , H01M4/90
摘要： 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.

4. 发明申请

US20220344633A1 METHOD OF MANUFACTURING SOLID-STATE BATTERY AND SOLID-STATE BATTERY 有权
公开(公告)号：US20220344633A1
公开(公告)日：2022-10-27
申请号：US17854106
申请日：2022-06-30
申请人： FDK CORPORATION
发明人： Masakazu KOBAYASHI , Akihiro MITANI , Satoshi HIGUCHI , Minako SUZUKI , Yuji GOTO
IPC分类号： H01M4/139 , H01M10/0562 , H01M10/0585 , H01M4/04
摘要： A method of manufacturing a solid-state battery includes forming an electrode that includes a first electrode layer and a second electrode layer facing the first electrode layer and that further includes a buried layer interposed between the first electrode layer and the second electrode layer so as to surround a contact portion where these electrode layers contact each other. For the buried layer, a solid electrolyte with lower electron conductivity than an electrode active material is used, for example. The buried layer is provided between the edge portion of the first electrode layer and the edge portion of the second electrode layer, so that deformation of the first electrode layer and second electrode layer is prevented in the subsequent lamination and thermocompression bonding and thus the occurrence of a short circuit due to such deformation is prevented in the solid-state battery.

5. 发明申请

US20220294025A1 ELECTRODE FOR ALKALINE SECONDARY BATTERY AND ALKALINE SECONDARY BATTERY 有权
公开(公告)号：US20220294025A1
公开(公告)日：2022-09-15
申请号：US17653282
申请日：2022-03-02
申请人： FDK CORPORATION
发明人： Akira Saguchi
IPC分类号： H01M10/28 , H01M4/24
摘要： An electrode has a band-shaped core and an electrode mixture layer carried by the core to form a spiral electrode assembly with a gas generating electrode and a separator for an alkaline secondary battery. The electrode in the spiral shape has a first circumference portion, an intermediate portion, and an outermost circumference portion. The first circumference portion is a starting portion for winding into the spiral shape. The intermediate portion is a second and following circumferences of the spiral shape. The outermost circumference portion has an inner surface only which faces the gas generating electrode. The electrode mixture layer includes a reactant that develops a reaction consuming gas generated from the gas generating electrode. An amount of the reactant in the first circumference portion is more than those in the intermediate portion and/or the outermost circumference portion.

6. 发明申请

US20220258910A1 BATTERY PACKAGING CONTAINER 有权
公开(公告)号：US20220258910A1
公开(公告)日：2022-08-18
申请号：US17647725
申请日：2022-01-11
申请人： FDK CORPORATION
发明人： Takuro Ito
IPC分类号： B65D5/50
摘要： A battery packaging container includes: a plate-shaped bottom wall; a first lateral wall formed integrally with the bottom wall; a second lateral wall formed integrally with the bottom wall; a partition wall formed integrally with the first lateral wall and extending diagonally from an upper end of the first lateral wall toward the second edge of the bottom wall; and a lid formed integrally with the second lateral wall and extending from an upper end of the second lateral wall to cover the partition wall from above. The partition wall includes a storage hole to store a battery, the storage hole being defined by an end portion of the partition wall, a root portion located on an opposite side of the end portion, and a pair of lateral portions connecting the end portion and the root portion.

7. 发明授权

US11355753B2 Negative electrode for nickel metal hydride secondary battery, method of manufacturing the negative electrode, and nickel metal hydride secondary battery using the negative electrode 有权
公开(公告)号：US11355753B2
公开(公告)日：2022-06-07
申请号：US16832811
申请日：2020-03-27
申请人： FDK CORPORATION
发明人： Jun Ishida , Akira Saguchi , Shota Ohata
IPC分类号： H01M4/52 , C22C1/04 , C22C19/00 , H01M4/24 , H01M4/32 , H01M4/36 , H01M4/38 , H01M4/62 , H01M10/30 , H01M10/34 , H01M4/02
摘要： A negative electrode used in a nickel metal hydride secondary battery includes a negative electrode core body and a negative electrode mixture carried on the negative electrode core body. The negative electrode mixture includes hydrogen storage alloy powder which is an aggregate of hydrogen storage alloy particles, a binder, and a thickener. The hydrogen storage alloy particles have a volume mean particle size of 40 μm or less and a concentration of chlorine of not less than 180 ppm to not more than 780 ppm.

8. 发明授权

US11258130B2 Battery spacer 有权
公开(公告)号：US11258130B2
公开(公告)日：2022-02-22
申请号：US16327601
申请日：2017-06-18
申请人： FDK CORPORATION
发明人： Mika Takayanagi
IPC分类号： H01M2/10 , H01M50/213 , H01M50/20 , H01M50/107
摘要： A battery spacer comprises: a cylindrical case body into which a battery is inserted; a bottom wall portion with which an anode-side end of the battery is to come into contact, the bottom wall portion having an anode exposure hole from which a negative terminal of the battery is partially exposed; an annular top wall member that is located opposite to the bottom wall portion 8 and has a central opening into which the battery is inserted; a plurality of anode-side catching pieces that have anode-side engagement hooks extending from the circumference of the anode exposure hole toward the interior of the case body and engaging with an anode-side outer peripheral surface of the battery, and hold the anode side of the battery; and a plurality of cathode-side catching pieces that have cathode-side engagement hooks extending from the circumference of a central opening toward the interior of the case body and engaging with a cathode-side outer peripheral surface of the battery, and hold the cathode side of the battery.

9. 发明授权

US11038429B2 Insulation-type switching power supply 有权
公开(公告)号：US11038429B2
公开(公告)日：2021-06-15
申请号：US16498573
申请日：2018-01-18
申请人： FDK CORPORATION
发明人： Kenji Hamada , Tadashi Sato , Norio Fukui
IPC分类号： H02M3/335 , H02M1/40
摘要： An insulation-type switching power supply according to the present invention includes: a PWM control circuit that generates and outputs a PWM pulse and a PWM pulse respectively by alternately extracting pulses of a PWM control pulse signal at a field-effect transistor in a flyback converter circuit; a pulse transformer; a bidirectional excitation circuit that excites a primary winding of the pulse transformer in the forward direction using the PWM pulse and excites the primary winding of the pulse transformer in the reverse direction using the PWM pulse; and a switching circuit that generates a pulse signal by inverting a negative pulse of a pulse signal, induced in a secondary winding of the pulse transformer, to a positive pulse and switches the field-effect transistor by using the generated pulse signal.

10. 发明授权

US11038161B2 Negative electrode for nickel-hydrogen secondary battery, and nickel-hydrogen secondary battery 有权
公开(公告)号：US11038161B2
公开(公告)日：2021-06-15
申请号：US16357050
申请日：2019-03-18
申请人： FDK CORPORATION
发明人： Shota Ohata , Jun Ishida , Toshiki Sato , Akira Saguchi
IPC分类号： H01M4/38 , H01M10/34 , H01M4/24 , H01M4/62 , H01M4/36 , H01M4/60 , H01M4/02
摘要： A nickel-hydrogen secondary battery includes an electrode group which contains a positive electrode, a negative electrode, and a separator, wherein the negative electrode includes a negative electrode core, and a negative electrode mixture layer held by the negative electrode core, wherein the negative electrode mixture layer contains a fluororesin; a quantity of the fluororesin, expressed by a mass applied per unit area of the negative electrode, is within a range of 0.2 mg/cm2 or more and 2.0 mg/cm2 or less; and a fluororesin content which is a ratio of the fluororesin contained in a unit volume of the negative electrode mixture layer is higher in an inner layer portion than in an outer layer portion in the negative electrode mixture layer.

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