WO2011027502A1 - Pile sèche alcaline - Google Patents

Pile sèche alcaline Download PDF

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Publication number
WO2011027502A1
WO2011027502A1 PCT/JP2010/004629 JP2010004629W WO2011027502A1 WO 2011027502 A1 WO2011027502 A1 WO 2011027502A1 JP 2010004629 W JP2010004629 W JP 2010004629W WO 2011027502 A1 WO2011027502 A1 WO 2011027502A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery case
negative electrode
electrode terminal
alkaline
battery
Prior art date
Application number
PCT/JP2010/004629
Other languages
English (en)
Japanese (ja)
Inventor
田野英二
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2011027502A1 publication Critical patent/WO2011027502A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/193—Organic material

Definitions

  • the present invention relates to an alkaline battery, and more particularly to an alkaline battery in which a battery case (functioning as a positive terminal) is sealed with a negative terminal plate.
  • Alkaline batteries are widely used today as a main power source for daily necessities, toys, hobby supplies, game machines, portable music players and electronic devices.
  • the packaging forms of alkaline batteries at the time of distribution are diversified.
  • the negative electrode terminal plate of an alkaline battery is required to be thin for economic reasons.
  • a thin negative electrode terminal plate may not be able to withstand the pressure during sealing. Even if the thin negative electrode terminal plate can withstand the pressure at the time of sealing, the negative electrode terminal plate may be cracked during distribution or use. Therefore, a negative electrode terminal plate that can be thinned without reducing the strength has been proposed (Patent Document 1).
  • the battery case of an alkaline battery is required to be thin for reasons such as increasing the capacity of the alkaline battery.
  • reducing the thickness of the battery case may cause damage to the battery case during distribution or use.
  • Patent Document 2 a battery case that can be thinned without reducing the strength has been proposed.
  • the present invention has been made in view of the above problems, and an object of the present invention is to prevent leakage of an alkaline electrolyte when a plurality of alkaline batteries are dropped in a state of being arranged in series.
  • the alkaline dry battery according to the present invention includes a battery case (positive electrode terminal), a positive electrode, a separator, a negative electrode, a negative electrode terminal plate, and a resin sealing body.
  • the battery case has a cylindrical shape having a sealed end and an open end, and the sealed end has a protrusion and a shoulder.
  • the protrusion is located in the center of the sealing end, and the shoulder extends radially inward from the side wall of the battery case and is connected to the protrusion.
  • the positive electrode, the separator, and the negative electrode are disposed in this order from the inner wall surface of the battery case toward the radially inner side, and the separator is also disposed between the shoulder and the negative electrode.
  • the negative electrode terminal plate has a central flat plate portion and a peripheral portion, the central flat plate portion covers the opening end of the battery case, and the peripheral portion is an opening edge portion of the battery case through the peripheral annular portion of the resin sealing body. It is fixed to.
  • the resin sealing body has a peripheral annular portion, a central cylindrical portion, a connecting portion, and a thin portion, and the central cylindrical portion is disposed to face the inner surface of the central flat plate portion of the negative electrode terminal plate, and the connecting portion is the center.
  • a cylindrical part and a peripheral annular part are connected, and the thin part is provided in the connection part and is relatively thin.
  • the shoulder portion of the battery case and the central flat plate portion of the negative electrode terminal plate are made of the same material, and the thickness of the shoulder portion of the battery case is 0.2 mm or more and 0.4 mm or less.
  • the thickness of the shoulder portion is Tp [mm] and the thickness of the central flat plate portion of the negative electrode terminal plate is Tn [mm]
  • 1.0 ⁇ (Tn / Tp) ⁇ 2.0 is satisfied.
  • the depression of the protruding portion of the battery case by the central flat plate portion of the negative electrode terminal plate can be prevented and the depression of the central flat plate portion of the negative electrode terminal plate by the protruding portion of the battery case can be prevented. Can be prevented.
  • the size of the corner located near the sealing end of the battery case among the corners formed by the axial direction of the central cylindrical portion and the thin wall portion is preferably 60 degrees or more and 90 degrees or less. .
  • the alkaline electrolyte it is possible to prevent the alkaline electrolyte from leaking from the alkaline battery even if the alkaline batteries are dropped in a state where they are arranged in series.
  • FIG. 1 is a table summarizing the results of experiments conducted to investigate the cause of liquid leakage during distribution.
  • FIG. 2 is a plan view showing a state in which a plurality of shrink packs are packed in a cardboard box.
  • FIGS. 3A and 3B are half cross-sectional views of an alkaline dry battery for explaining the first reason that liquid leakage occurs.
  • 4 (a) to 4 (c) are half cross-sectional views of an alkaline dry battery for explaining a second reason that liquid leakage occurs.
  • FIG. 5 is a half sectional view of an alkaline battery according to an embodiment of the present invention.
  • FIG. 6 is an enlarged view of a region VI shown in FIG.
  • FIG. 7 is an enlarged view of the region VII shown in FIG.
  • FIG. 8 is a table summarizing the results of Examples 1-6 and Comparative Examples 1-2.
  • FIG. 9 is a table summarizing the results of Examples 7 to 12 and Comparative Examples 3 to 4.
  • shrink packs are a pack of a plurality of alkaline batteries arranged in parallel
  • shrink packs are a pack of a plurality of alkaline batteries arranged in parallel
  • circulation has generate
  • the present inventor dropped a plurality of shrink packs packed in a cardboard box and examined whether or not a liquid leak occurred. Specifically, eight alkaline batteries were arranged in parallel to produce one shrink pack, and the five shrink packs were packed in a cardboard box.
  • FIG. 2 is a plan view showing a state where a plurality of shrink packs P, P,... Are packed in a cardboard box B.
  • FIG. 3 (a) to 3 (b) are half sectional views of the alkaline dry battery for explaining the first reason that the liquid leakage occurs.
  • FIGS. 4 (a) to 4 (c) show the liquid leakage. It is a half sectional view of an alkaline dry battery for explaining the 2nd reason to do.
  • the alkaline batteries 10, 10,... are arranged so that the outer surfaces of the battery cases 1, 1,.
  • the portion 12a and the central flat plate portion 7a of the negative electrode terminal plate 7 of the other alkaline dry battery 10 are adjacent to each other. Therefore, when the cardboard box B shown in FIG. 2 is dropped, when the central flat plate portion 7a of the negative electrode terminal plate 7 is recessed by the protruding portion 12a of the battery case 1, and when the central flat plate portion 7a of the negative electrode terminal plate 7 protrudes. It is conceivable that the portion 12a is recessed.
  • first reason is the central cylindrical shape of the resin sealing body 5 due to the depression of the central flat plate portion 7a of the negative electrode terminal plate 7.
  • the part 5a moves to the sealing end 12 side of the battery case 1, and as a result, the resin sealing body 5 is torn at the thin part 5d. Therefore, in this case, it is considered that liquid leakage occurs as soon as the cardboard box B shown in FIG. 2 is dropped.
  • the second reason for the liquid leakage due to the drop (hereinafter simply referred to as “second reason”) is that an internal short circuit occurs because the separator 4 is broken due to the deformation of the protruding portion 12a of the battery case 1. As a result, the resin sealing body 5 is torn at the thin portion 5d. Therefore, in this case, it is considered that liquid leakage occurs after the cardboard box B shown in FIG.
  • the deformation of the shoulder 12b of the battery case 1 may be prevented, and specifically, the strength of the shoulder 12b may be increased.
  • the central flat plate portion 7a of the negative electrode terminal plate 7 tends to be recessed when the cardboard box B shown in FIG. 2 is dropped. Cause leakage.
  • the inventor of the present application can suppress the liquid leakage due to the first reason and the liquid leakage due to the second reason at the same time. It is not sufficient to optimize the strength of either the portion 7a or the shoulder portion 12b of the battery case 1, and the strength of both the central flat plate portion 7a of the negative electrode terminal plate 7 and the shoulder portion 12b of the battery case 1 is optimized. It was considered preferable to make it.
  • An embodiment of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to embodiment shown below.
  • FIG. 5 is a half sectional view of the alkaline dry battery according to the present embodiment.
  • FIG. 6 is an enlarged view of a region VI shown in FIG.
  • FIG. 7 is an enlarged view of the region VII shown in FIG.
  • Alkaline batteries have a battery case 1 that also serves as a positive electrode terminal.
  • the battery case 1 is press-molded into a predetermined size and a predetermined shape by a known method using, for example, a nickel-plated steel plate, and has a cylindrical shape having an opening end 11 and a sealing end 12.
  • the sealing end 12 includes a projecting portion 12a and a shoulder portion 12b.
  • the protruding portion 12a is located at the center of the sealing end 12 and protrudes outside the battery case 1 from the shoulder portion 12b.
  • the shoulder 12b extends radially inward from the side wall of the battery case 1 and is connected to the protrusion 12a.
  • the positive electrode 2 is in close contact with the inner wall surface of the battery case 1.
  • the positive electrode 2 has a cylindrical shape, and the negative electrode 3 is provided in the hollow portion of the positive electrode 2 via a separator 4.
  • the separator 4 is provided not only between the positive electrode 2 and the negative electrode 3 but also between the shoulder 12 b of the battery case 1 and the negative electrode 3.
  • the positive electrode 2 includes a positive electrode active material containing manganese dioxide powder and the like, a conductive agent such as graphite, and an alkaline electrolyte such as an aqueous potassium hydroxide solution.
  • the separator 4 is a nonwoven fabric in which, for example, polyvinyl alcohol fiber and rayon fiber are mixed, and holds an alkaline electrolyte.
  • the negative electrode 3 includes, for example, a negative electrode active material such as zinc powder or zinc alloy powder, a gelling agent such as sodium polyacrylate, and an alkaline electrolyte such as an aqueous potassium hydroxide solution.
  • the negative electrode active material it is preferable to use a zinc alloy powder excellent in corrosion resistance. Furthermore, in consideration of the environment, it is preferable to use mercury, cadmium, lead, or a zinc alloy powder free of all of these.
  • the zinc alloy include a zinc alloy containing indium, aluminum, and bismuth.
  • the alkaline electrolyte may contain 30 to 40% by weight (preferably 32 to 35% by weight) potassium hydroxide and 0.5 to 3% by weight zinc oxide.
  • it is necessary is just to set suitably content of each material in the positive electrode 2, content of each material in the negative electrode 3, the thickness of the separator 4, etc.
  • the open end 11 of the battery case 1 is sealed by a sealing unit 9, and the sealing unit 9 has a resin sealing body 5, a negative electrode current collector 6, and a negative electrode terminal plate 7.
  • the negative electrode terminal plate 7 is produced by, for example, press-molding a nickel-plated steel plate into a predetermined size and a predetermined shape, and has a central flat plate portion 7a and a peripheral annular portion (peripheral portion) 7b.
  • the central flat plate portion 7 a covers the open end 11 of the battery case 1.
  • the peripheral annular portion 7 b is located on the inner side in the axial direction of the battery case 1 with respect to the central flat plate portion 7 a, and is fixed to the opening edge of the battery case 1 via the peripheral annular portion 5 b of the resin sealing body 5. .
  • a plurality of gas holes are formed in the peripheral annular portion 7b, so that the gas in the battery case 1 can be released when the thin portion 5d of the resin sealing body 5 is broken.
  • the resin sealing body 5 is manufactured by injection molding a resin such as polyamide or polypropylene into a predetermined size and a predetermined shape.
  • the resin sealing body 5 is preferably made of 6,6-nylon, 6,10-nylon or 6,12-nylon. Thereby, the resin sealing body 5 excellent in alkali resistance and heat resistance can be provided.
  • the resin sealing body 5 has a central cylindrical portion 5a, a connecting portion 5c, and a thin portion 5d in addition to the peripheral annular portion 5b.
  • the central cylindrical portion 5a is opposed to the inner surface of the central flat plate portion 7a of the negative electrode terminal plate 7, and a through hole is formed in the central cylindrical portion 5a so as to extend in the thickness direction.
  • the connecting part 5c connects the central cylindrical part 5a and the peripheral annular part 5b, and has a thin part 5d.
  • the thin part 5d is a relatively thin part in the connecting part 5c.
  • the negative electrode current collector 6 is produced by pressing a wire such as silver, copper, or brass into a predetermined shape and a predetermined size, and has a nail shape having a head 6a.
  • the surface of the negative electrode current collector 6 is preferably plated with tin or indium. Thereby, it can prevent that an impurity is mixed in the negative electrode current collector at the time of processing of the negative electrode current collector 6, and a concealment effect can be obtained.
  • Such a negative electrode current collector 6 is inserted into the through hole formed in the central cylindrical portion 5 a of the resin sealing body 5, and the head portion 6 a is in contact with the inner surface of the central flat plate portion 7 a of the negative electrode terminal plate 7. The tip located on the opposite side of the head 6 a is present in the negative electrode 3.
  • Such an alkaline battery satisfies the following (formula 1) and (formula 2).
  • In is the Vickers hardness Hv of the central flat plate portion 7 a of the negative electrode terminal plate 7, and Ip is the Vickers hardness Hv of the shoulder portion 12 b of the battery case 1.
  • the Vickers hardness ratio (In / Ip) satisfies (Equation 1). Therefore, even if the alkaline batteries according to this embodiment are accidentally dropped in a state where they are arranged in series, the negative flat plate 7a can be prevented from being depressed by the shoulder 12b of the battery case 1 and the central flat plate portion 7a of the negative flat plate 7 can be prevented. Since the deformation of the shoulder portion 12b of the battery case 1 by the central flat plate portion 7a can be prevented, the electrolyte solution can be prevented from leaking from the alkaline dry battery according to the present embodiment.
  • the alkaline batteries according to this embodiment are accidentally dropped while being packed in a cardboard box B as shown in FIG.
  • the alkaline dry battery according to the present embodiment may be accidentally dropped in a state in which the used device (toy, game device, electronic device, or the like) is filled.
  • the Vickers hardness ratio (In / Ip) is 1.0 or more and 2.0 or less as shown in (Formula 1), but preferably 1.0 or more and 1.7 or less, and 1.2 or more and 1.4. The following is more preferable.
  • Such Vickers hardness ratio (In / Ip) is measured according to JIS Z 2244 (Vickers hardness test method).
  • the Vickers hardness ratio can be rewritten by the thickness ratio. That is, the alkaline battery according to this embodiment only needs to satisfy the following (formula 3) to (formula 5).
  • Tn is the thickness (mm) of the central flat plate portion 7a of the negative electrode terminal plate 7
  • Tp is the thickness (mm) of the shoulder portion 12b of the battery case 1.
  • the thickness of the shoulder portion 12b of the battery case 1 only needs to satisfy (Equation 4), is preferably 0.2 mm or more and 0.3 mm or less, and more preferably about 0.2 mm.
  • the thickness of the central flat plate portion 7a of the negative electrode terminal plate 7 only needs to satisfy (Equation 5), is preferably 0.2 mm or more and 0.4 mm or less, and more preferably about 0.2 mm.
  • the angle of the thin portion 5d with respect to the axial direction of the central cylindrical portion 5a and the angle located on the sealing end 12 side of the battery case 1 may be 60 degrees or more and 90 degrees or less.
  • the inclination angle ⁇ of the thin portion is outside the above range, the amount of change in the inclination angle ⁇ of the thin portion increases when the central flat plate portion of the negative electrode terminal plate is recessed. Therefore, since a large stress is applied to the thin portion, the thin portion is easily broken.
  • the inclination angle ⁇ of the thin-walled portion is less than 60 degrees, the volume of the sealing unit is increased, so that it is difficult to increase the capacity of the alkaline battery.
  • the inclination angle ⁇ of the thin wall portion exceeds 90 degrees, the thin wall portion may not be broken even if the internal pressure of the alkaline battery increases when the alkaline battery is misused. It is difficult to ensure sex.
  • the inclination angle ⁇ of the thin portion 5d is preferably 60 degrees or more and 90 degrees or less.
  • leakage of the alkaline electrolyte can be suppressed even when the alkaline batteries are accidentally dropped in a state where they are arranged in series.
  • the present embodiment is not limited to the case where the battery case is dropped with the protruding portion of the battery case positioned below the negative electrode terminal plate as shown in FIG.
  • the effect of this embodiment can be obtained.
  • Example 1 The alkaline dry battery of Example 1 was produced according to the method shown below.
  • a groove was formed in the vicinity of the open end of the battery case 1 to form a recess.
  • the sealing unit 9 was installed at the opening end 11 of the battery case 1 so as to receive the peripheral annular portion 5b of the resin sealing body 5 of the sealing unit 9 on the concave portion.
  • the head 6 a of the nail-like negative electrode current collector 6 is welded to the inner surface of the central flat plate part 7 a of the negative electrode terminal plate 7, and the negative electrode current collector 6 is penetrated through the central cylindrical part 5 a of the resin sealing body 5. It inserted in the hole and inserted in the negative electrode 3.
  • the opening edge of the battery case 1 is bent and the peripheral annular portion 7b of the negative electrode terminal plate 7 is fixed to the opening edge of the battery case 1 via the peripheral annular portion 5b of the resin sealing body 5.
  • the outer label 8 was coated on the outer surface of the battery case 1.
  • the thickness of the central flat plate portion 7a of the negative electrode terminal plate 7 is 0.4 mm
  • the thickness of the shoulder portion 12b of the battery case 1 is 0.2 mm
  • the inclination angle ⁇ of the thin portion 5d is 80 degrees. . In this manner, 90 alkaline dry batteries according to Example 1 were produced.
  • Example 2-6 and Comparative Examples 1-2 the alkaline dry battery was manufactured in the same manner as in Example 1 except for the thickness of the shoulder 12b of the battery case 1 and the inclination angle ⁇ (see FIG. 8) of the thin part 5d. The same test as in Example 1 was conducted to check for the presence of liquid leakage. The results are shown in FIG.
  • Example 7 to 12 and Comparative Examples 3 to 4 In Examples 7 to 12 and Comparative Examples 3 to 4, except for the thickness of the central flat portion 7a of the negative electrode terminal plate 7, the thickness of the shoulder portion 12b of the battery case 1, and the inclination angle ⁇ of the thin portion 5d (see FIG. 9).
  • Example 7 to 12 and Comparative Examples 3 to 4 except for the thickness of the central flat portion 7a of the negative electrode terminal plate 7, the thickness of the shoulder portion 12b of the battery case 1, and the inclination angle ⁇ of the thin portion 5d (see FIG. 9).
  • Example 7 to 12 and Comparative Examples 3 to 4 except for the thickness of the central flat portion 7a of the negative electrode terminal plate 7, the thickness of the shoulder portion 12b of the battery case 1, and the inclination angle ⁇ of the thin portion 5d (see FIG. 9).
  • the batteries of Examples 7 to 12 are thinner than the batteries of Examples 1 to 6, but the thickness of the negative terminal plate and the shoulder of the battery case is thinner. Occurrence could be suppressed. As a result, it was found that the batteries of Examples 7 to 12 can realize a high capacity without causing liquid leakage.
  • the alkaline dry battery according to the present invention can be used in any device that uses an alkaline dry battery as a power source.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Primary Cells (AREA)

Abstract

La présente invention a trait à une pile sèche alcaline permettant de sceller l’extrémité ouverte (11) d’un boîtier de batterie (1) à une plaque à bornes d’électrode négative (7) avec un corps d’étanchéité en résine (5) intercalé entre ces dernières. Une partie d’épaulement (12b) d’une extrémité d’étanchéité (12) du boîtier de batterie (1) et une partie de plaque plane centrale (7a) de la plaque à bornes d’électrode négative (7) sont constituées du même matériau, et l’épaisseur de la partie d’épaulement (12b) du boîtier de batterie (1) est de 0,2 à 0,4 mm (inclus). Lorsque l’épaisseur de la partie d’épaulement (12b) du boîtier de batterie (1) est représentée par Tp [mm] et que l’épaisseur de la partie de plaque plane centrale (7a) de la plaque à bornes d’électrode négative (7) est représentée par Tn [mm], la relation 1,0 ≤ (Tn/Tp) ≤ 2,0 est satisfaite.
PCT/JP2010/004629 2009-09-02 2010-07-16 Pile sèche alcaline WO2011027502A1 (fr)

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JP2009-202578 2009-09-02
JP2009202578A JP2012226825A (ja) 2009-09-02 2009-09-02 アルカリ乾電池

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WO2011027502A1 true WO2011027502A1 (fr) 2011-03-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2843726A1 (fr) * 2013-08-29 2015-03-04 Arkema France Joint de batterie à base d'une composition de polyamide
WO2018123123A1 (fr) * 2016-12-28 2018-07-05 パナソニックＩｐマネジメント株式会社 Pile sèche alcaline

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003249232A (ja) * 2002-02-25 2003-09-05 Toshiba Battery Co Ltd 円筒形アルカリ電池
JP2008004428A (ja) * 2006-06-23 2008-01-10 Matsushita Electric Ind Co Ltd アルカリ乾電池
JP2008108603A (ja) * 2006-10-26 2008-05-08 Fdk Energy Co Ltd 筒形アルカリ電池
JP2008226795A (ja) * 2007-03-15 2008-09-25 Fdk Energy Co Ltd 電池用金属部品及び電池
JP2009129665A (ja) * 2007-11-22 2009-06-11 Fdk Energy Co Ltd 筒型電池及びその製造方法
JP2009151958A (ja) * 2007-12-19 2009-07-09 Hitachi Maxell Ltd アルカリ電池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003249232A (ja) * 2002-02-25 2003-09-05 Toshiba Battery Co Ltd 円筒形アルカリ電池
JP2008004428A (ja) * 2006-06-23 2008-01-10 Matsushita Electric Ind Co Ltd アルカリ乾電池
JP2008108603A (ja) * 2006-10-26 2008-05-08 Fdk Energy Co Ltd 筒形アルカリ電池
JP2008226795A (ja) * 2007-03-15 2008-09-25 Fdk Energy Co Ltd 電池用金属部品及び電池
JP2009129665A (ja) * 2007-11-22 2009-06-11 Fdk Energy Co Ltd 筒型電池及びその製造方法
JP2009151958A (ja) * 2007-12-19 2009-07-09 Hitachi Maxell Ltd アルカリ電池

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2843726A1 (fr) * 2013-08-29 2015-03-04 Arkema France Joint de batterie à base d'une composition de polyamide
FR3010235A1 (fr) * 2013-08-29 2015-03-06 Arkema France
CN104419203A (zh) * 2013-08-29 2015-03-18 阿克马法国公司 基于聚酰胺组合物的电池垫圈
WO2018123123A1 (fr) * 2016-12-28 2018-07-05 パナソニックＩｐマネジメント株式会社 Pile sèche alcaline

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