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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1 EP1150365B1
Battery assembly
Publication/Patent Number: EP1150365B1 Publication Date: 2017-06-07 Application Number: 01110492.4 Filing Date: 2001-04-27 Inventor: Arai, Naoto   Hamada, Shinji   Ikoma, Munehisa   Iwase, Masayoshi   Yamauchi, Tomokazu   Assignee: Panasonic Corporation   TOYOTA JIDOSHA KABUSHIKI KAISHA   IPC: H01M2/12 Abstract: A battery assembly includes a plurality of battery modules electrically connected together, each battery module acting as a secondary battery and including an electrode group, an electrolyte, a container for housing the electrode group and the electrolyte, and a safety valve operating in accordance with the internal pressure of the container. The working pressure of each safety valve is set so that the safety valve of at least one battery module is opened when the at least one battery module has its maximum internal pressure or less during the charge equalization. It is possible to provide a battery assembly that can improve the reliability of the container strength by keeping the working pressure of each safety valve lower than the pressure that the container resists even under elevated temperature conditions. A battery assembly includes a plurality of battery modules electrically connected together, each battery module acting as a secondary battery and including an electrode group, an electrolyte, a container for housing the electrode group and the electrolyte, and a safety valve ...More ...Less
2 EP1091430B1
Safety vent device used in a battery module
Publication/Patent Number: EP1091430B1 Publication Date: 2016-02-24 Application Number: 00308823.4 Filing Date: 2000-10-06 Inventor: Arai, Naoto   Yamamura, Izumi   Takaki, Mitsugu   Hamada, Shinji   Ikoma, Munehisa   Assignee: Panasonic Corporation   TOYOTA JIDOSHA KABUSHIKI KAISHA   IPC: H01M10/24 Abstract: In a sealed rechargeable battery module wherein a safety vent device (13) is provided to release the internal pressure of the battery when the pressure has reached a predetermined value, the safety vent device comprises a valve case (25) formed with a vent (26) and a sealing protrusion (27) surrounding this vent, a valve body (31) inserted in the valve case including a sealing portion (28) that is brought in tight contact with the sealing protrusion, a rigid holder (29) for supporting the sealing portion, and a resilient portion (30) for pressing the rigid holder toward the vent, and a valve cover (32) formed with apertures (33) for closing the upper open end of the valve case in a state wherein the resilient portion of the valve body is compressed. In a sealed rechargeable battery module wherein a safety vent device (13) is provided to release the internal pressure of the battery when the pressure has reached a predetermined value, the safety vent device comprises a valve case (25) formed with a vent (26) and a sealing ...More ...Less
3 JP5142428B2
HYDROGEN STORAGE ALLOY ELECTRODE
Publication/Patent Number: JP5142428B2 Publication Date: 2013-02-13 Application Number: 2001188671 Filing Date: 2001-06-21 Inventor: Ikoma, Munehisa   Yuasa, Shinichi   Ito, Shinichiro   Ito, Kojiro   Seri, Hajime   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: B22F1/00 Abstract: PROBLEM TO BE SOLVED: To provide a hydrogen storage alloy electrode which suppresses dispersion of battery characteristics
4 JP5244860B2
SECONDARY BATTERY
Publication/Patent Number: JP5244860B2 Publication Date: 2013-07-24 Application Number: 2010130455 Filing Date: 2010-06-07 Inventor: Inoue, Hiroshi   Ikoma, Munehisa   Hamada, Shinji   Taniguchi, Akihiro   Morishita, Nobuyasu   Fujioka, Tokuyuki   Assignee: TOYOTA MOTOR CORP   PANASONIC CORP   IPC: H01M2/02 Abstract: PROBLEM TO BE SOLVED: To provide an assembly type secondary battery
5 JP5137165B2
SEPARATOR FOR ALKALINE SECONDARY BATTERY
Publication/Patent Number: JP5137165B2 Publication Date: 2013-02-06 Application Number: 2001238272 Filing Date: 2001-08-06 Inventor: Abe, Masao   Ikoma, Munehisa   Urairi, Masakatsu   Otani, Akira   Uda, Satoshi   Morishita, Nobuyasu   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   NITTO DENKO CORP   IPC: H01M2/16 Abstract: PROBLEM TO BE SOLVED: To provide a separator for an alkaline secondary battery having excellent alkaliproof capability
6 EP1150372B1
Alkaline storage battery
Publication/Patent Number: EP1150372B1 Publication Date: 2013-10-23 Application Number: 01110392.6 Filing Date: 2001-04-26 Inventor: Komori, Katsunori   Sato, Naoto   Taniguchi, Akihiro   Ikoma, Munehisa   Takahashi, Yasuhiro   Ito, Takashi   Assignee: Panasonic Corporation   TOYOTA JIDOSHA KABUSHIKI KAISHA   IPC: H01M10/34 Abstract: An alkaline storage battery having excellent self-discharge characteristics even after a number of charge-discharge cycles is provided. The alkaline storage battery is provided with a case 11 and an electrode group 12 enclosed in the case 11, and a separator that is included in the electrode group 12 retains at least 15 mg/cm 2 of an electrolyte at least in a period after assembling the battery, from the time the separator is impregnated with the electrolyte to the time the battery is activated. An alkaline storage battery having excellent self-discharge characteristics even after a number of charge-discharge cycles is provided. The alkaline storage battery is provided with a case 11 and an electrode group 12 enclosed in the case 11, and a separator that is included in ...More ...Less
7 EP1241717B8
Sealed storage batttery with safety valve and reproduction method
Publication/Patent Number: EP1241717B8 Publication Date: 2012-02-08 Application Number: 02012849.2 Filing Date: 1996-12-09 Inventor: Marukawa, Shuhei   Inoue, Hiroshi   Hamada, Shinji   Ikoma, Munehisa   Assignee: Panasonic Corporation   IPC: H01M2/12 Abstract: A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid (14) closing an opening in the battery case to seal the battery case, and a safety valve (3) of the assembling type mounted on the battery case lid. The safety valve is welded (8) to the battery case lid. With this construction, a hermetic seal at an area of contact between the safety valve and the battery case lid is enhanced, and also the reliability of the safety valve is enhanced. A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid (14) closing an opening in the battery case to seal the battery case, and a ...More ...Less
8 EP1137080B1
Rectangular battery with wound electrode assembly
Publication/Patent Number: EP1137080B1 Publication Date: 2012-05-09 Application Number: 01107237.8 Filing Date: 2001-03-23 Inventor: Morishita, Nobuyasu   Yuasa, Shinichi   Taniguchi, Akihiro   Ikoma, Munehisa   Assignee: Panasonic Corporation   Toyota Jidosha Kabushiki Kaisha   IPC: H01M10/28 Abstract: A square shaped battery includes: an electrode plate group including a belt-like positive electrode plate, a belt-like negative electrode plate, and a belt-like separator, the belt-like positive electrode plate, the belt-like negative electrode plate, and the belt-like separator being laminated and rolled up to form the electrode plate group; and a pair of power collectors disposed on sides of the electrode plate group for collecting electric power from the electrode plate group. A square shaped battery includes: an electrode plate group including a belt-like positive electrode plate, a belt-like negative electrode plate, and a belt-like separator, the belt-like positive electrode plate, the belt-like negative electrode plate, and the belt-like separator ...More ...Less
9 JP4909836B2
POWER SUPPLY APPARATUS AND ELECTRIC APPARATUS
Publication/Patent Number: JP4909836B2 Publication Date: 2012-04-04 Application Number: 2007206902 Filing Date: 2007-08-08 Inventor: Ikoma, Munehisa   Yoshizawa, Koji   Suzuki, Gohei   Yuasa, Koji   Assignee: MATSUSHITA ELECTRIC IND CO LTD   IPC: H01M10/42 Abstract: PROBLEM TO BE SOLVED: To ensure safety to load an electric apparatus in a safe status on a transport medium while notifying third parties that the electric apparatus cannot be loaded on the transport medium. SOLUTION: A loading detecting button 1 previously detects the loading of the electric apparatus on the transport medium. A voltage detecting section 3 detects a voltage V of a power supply 2. A storage section 7 stores a control operation voltage V1 and a control finish voltage V2 smaller than the control operation voltage V1. When the loading detecting button 1 previously detects the loading on the transport medium PROBLEM TO BE SOLVED: To ensure safety to load an electric apparatus in a safe status on a transport medium while notifying third parties that the electric apparatus cannot be loaded on the transport medium. SOLUTION: A loading detecting button 1 previously detects the loading ...More ...Less
10 JP4959867B2
HEAT RADIATION EVALUATION METHOD OF BATTERY PACK AND COOLING DESIGN METHOD OF BATTERY PACK USING THIS METHOD
Publication/Patent Number: JP4959867B2 Publication Date: 2012-06-27 Application Number: 2000111346 Filing Date: 2000-04-12 Inventor: Ikoma, Munehisa   Kanamaru, Kunio   Kimoto, Shinya   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: B60K1/04 Abstract: PROBLEM TO BE SOLVED: To design a battery pack which is superior in efficiency and is excel lent in both heat radiation and mounting capability. SOLUTION: An affection factor Φ of the heat radiation performance is found by the number of unit cells and disposition arrangement form. Based on found the affection factor Φ and the flow velocity U of the cooling air at the cooling air passage obtained by the structure of the fan and the dust forming the cooling air passage PROBLEM TO BE SOLVED: To design a battery pack which is superior in efficiency and is excel lent in both heat radiation and mounting capability. SOLUTION: An affection factor Φ of the heat radiation performance is found by the number of unit cells and disposition arrangement ...More ...Less
11 JP4971536B2
MANUFACTURING DEVICE OF POLE PLATE FOR BATTERY
Publication/Patent Number: JP4971536B2 Publication Date: 2012-07-11 Application Number: 2000113066 Filing Date: 2000-04-14 Inventor: Ikoma, Munehisa   Suzuki, Gohei   Takagi, Mitsugi   Matsumura, Jun   Fujioka, Tokuyuki   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: H01M4/04 Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of pole plates for batteries
12 JP5047412B2
BATTERY PACK
Publication/Patent Number: JP5047412B2 Publication Date: 2012-10-10 Application Number: 2000131760 Filing Date: 2000-04-28 Inventor: Arai, Naoto   Ikoma, Munehisa   Hamada, Shinji   Yamauchi, Tomokazu   Iwase, Masayoshi   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: B60K6/20 Abstract: PROBLEM TO BE SOLVED: To provide a battery pack with improved reliability as to strength of a battery box by setting working pressure of a safety valve lower than withstanding pressure of the battery box even at a high temperature condition. SOLUTION: With the battery pack made of a plurality of unit cells which are secondary cells electrically connected with each other PROBLEM TO BE SOLVED: To provide a battery pack with improved reliability as to strength of a battery box by setting working pressure of a safety valve lower than withstanding pressure of the battery box even at a high temperature condition. SOLUTION: With the battery pack made ...More ...Less
13 JP4880113B2
SEPARATOR FOR BATTERY AND ELECTRODE GROUP USING THIS SEPARATOR
Publication/Patent Number: JP4880113B2 Publication Date: 2012-02-22 Application Number: 2000354557 Filing Date: 2000-11-21 Inventor: Ikoma, Munehisa   Yamamura, Takashi   Otani, Akira   Sekimori, Toshiyuki   Uda, Satoshi   Morishita, Nobuyasu   Iwase, Masayoshi   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   NITTO DENKO CORP   IPC: H01M2/16 Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of an electrode group excellent in manufacturing efficiency. SOLUTION: A superhigh molecular weight polyethylene porous sheet is bet in the lengthwise direction
14 JP5100718B2
RECTANGULAR NICKEL-HYDROGEN STORAGE BATTERY
Publication/Patent Number: JP5100718B2 Publication Date: 2012-12-19 Application Number: 2009181358 Filing Date: 2009-08-04 Inventor: Ito, Takashi   Ikoma, Munehisa   Sato, Naoto   Takahashi, Yasuhiro   Taniguchi, Akihiro   Komori, Katsunori   Assignee: TOYOTA MOTOR CORP   PANASONIC CORP   IPC: H01M2/16 Abstract: PROBLEM TO BE SOLVED: To provide a rectangular nickel-hydrogen storage battery having self-discharge characteristics even after a charge-discharge cycle. SOLUTION: The rectangular nickel-hydrogen storage battery includes a case 11
15 EP1667256B1
Method for manufacturing electrodes for battery
Publication/Patent Number: EP1667256B1 Publication Date: 2012-04-04 Application Number: 06002434.6 Filing Date: 2000-05-04 Inventor: Matsumura, Jun Matsushita Electric Ind. Co. Ltd.   Takaki, Mitsugu Matsushita Electric Ind. Co. Ltd.   Fujioka, Noriyuki Matsushita Electr. Ind. Co.ltd.   Ikoma, Munehisa Matsushita Electric Ind. Co. Ltd.   Assignee: Panasonic Corporation   Toyota Jidosha Kabushiki Kaisha   IPC: H01M4/04 Abstract: The present invention discloses a method for manufacturing an electrode for a battery by filling an active material into a three-dimensional porous metal substrate sheet and cutting said sheet to a certain size, comprising the steps of: pressing the portion to be cut and the periphery thereof in the substrate sheet; coating the portion to be cut and the periphery thereof in the substrate sheet with a resin; and/or impregnating the portion to be cut and the periphery thereof in the substrate sheet with a liquid containing a resin component, in addition to the steps of: filling an active material into the substrate sheet; and cutting the substrate sheet at the portion to be cut. This method prevents the occurrence of burrs and cuttings while the sheet is being cut and the coming off of the active material, thereby suppressing internal short circuit of the battery. As a result, a battery hardly suffering from a deterioration in preservation performance and charge-discharge cycle life can be obtained. The present invention discloses a method for manufacturing an electrode for a battery by filling an active material into a three-dimensional porous metal substrate sheet and cutting said sheet to a certain size, comprising the steps of: pressing the portion to be cut and the ...More ...Less
16 JP4779287B2
METHOD FOR MANUFACTURING ELECTRODE PLATE OF BATTERY
Publication/Patent Number: JP4779287B2 Publication Date: 2011-09-28 Application Number: 2003101282 Filing Date: 2003-04-04 Inventor: Ikoma, Munehisa   Kaiya, Hideo   Oo, Fumio   Nishimura, Masaru   Assignee: MATSUSHITA ELECTRIC IND CO LTD   IPC: H01M2/26 Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode plate for a battery enhancing the weight energy density of the battery and enhancing a battery protection function. SOLUTION: A positive plate 1 and/or a negative plate are/is manufactured by joining a PTC element 4 to a positive current collector 10 or a negative current collector manufactured by forming a metallic film on a resin film PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode plate for a battery enhancing the weight energy density of the battery and enhancing a battery protection function. SOLUTION: A positive plate 1 and/or a negative plate are/is manufactured by joining a PTC ...More ...Less
17 JP4644336B2
MANUFACTURING METHOD OF POSITIVE ELECTRODE FOR ALKALINE BATTERY
Publication/Patent Number: JP4644336B2 Publication Date: 2011-03-02 Application Number: 2000137295 Filing Date: 2000-05-10 Inventor: Ikoma, Munehisa   Kusama, Kazuyuki   Uda, Satoshi   Morishita, Nobuyasu   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: H01M4/26 Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a positive electrode for an alkaline battery
18 JP4757369B2
SQUARE ALKALINE STORAGE BATTERY
Publication/Patent Number: JP4757369B2 Publication Date: 2011-08-24 Application Number: 2000134542 Filing Date: 2000-05-08 Inventor: Ikoma, Munehisa   Yuasa, Shinichi   Taniguchi, Akihiro   Morishita, Nobuyasu   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: H01M2/02 Abstract: PROBLEM TO BE SOLVED: To provide a square alkaline storage battery that can optimize the balance between heat generation volume
19 JP4772185B2
POSITIVE ELECTRODE PLATE FOR ALKALINE BATTERY
Publication/Patent Number: JP4772185B2 Publication Date: 2011-09-14 Application Number: 2000377886 Filing Date: 2000-12-12 Inventor: Ikoma, Munehisa   Hayashi, Sei   Matsumura, Jun   Assignee: MATSUSHITA ELECTRIC IND CO LTD   TOYOTA MOTOR CORP   IPC: H01M4/26 Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode plate for alkaline battery
20 EP1241717B1
Sealed storage batttery with safety valve and reproduction method
Publication/Patent Number: EP1241717B1 Publication Date: 2011-07-13 Application Number: 02012849.2 Filing Date: 1996-12-09 Inventor: Marujawa, Shuhei   Inoue, Hiroshi   Hamada, Shinji   Ikoma, Munehisa   Assignee: Panasonic Corporation   IPC: H01M2/12 Abstract: A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid (14) closing an opening in the battery case to seal the battery case, and a safety valve (3) of the assembling type mounted on the battery case lid. The safety valve is welded (8) to the battery case lid. With this construction, a hermetic seal at an area of contact between the safety valve and the battery case lid is enhanced, and also the reliability of the safety valve is enhanced. A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid (14) closing an opening in the battery case to seal the battery case, and a ...More ...Less