WO2006058467A1 - A Button-Shaped Alkaline Battery - Google Patents

A Button-Shaped Alkaline Battery Download PDF

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Publication number
WO2006058467A1
WO2006058467A1 PCT/CN2004/001581 CN2004001581W WO2006058467A1 WO 2006058467 A1 WO2006058467 A1 WO 2006058467A1 CN 2004001581 W CN2004001581 W CN 2004001581W WO 2006058467 A1 WO2006058467 A1 WO 2006058467A1
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WO
WIPO (PCT)
Prior art keywords
negative electrode
gasket
wall
cover
electrode cover
Prior art date
Application number
PCT/CN2004/001581
Other languages
English (en)
French (fr)
Inventor
Jinhua Ye
Original Assignee
Chung Pak Battery Works Ltd.
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 Chung Pak Battery Works Ltd. filed Critical Chung Pak Battery Works Ltd.
Priority to EP04802593A priority Critical patent/EP1818999A4/en
Priority to JP2007600009U priority patent/JP3131145U/ja
Priority to US10/579,532 priority patent/US20070292755A1/en
Publication of WO2006058467A1 publication Critical patent/WO2006058467A1/zh

Links

Classifications

    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
    • 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
    • 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 utility model relates to a battery, in particular to a button type alkaline battery used for a small electronic device such as an electronic watch or an electronic desktop calculator.
  • the positive electrode housing 1 contains a positive electrode mixture 4 containing manganese dioxide as an active material
  • the negative electrode cover 2 is made of iron as a base material, and the outer layer is plated with a layer of nickel, and the inner layer is plated with a layer of indium, tin or copper.
  • a gasket (insulation ring) is placed;
  • the negative electrode cover 2 contains a mercury-free zinc powder or a zinc alloy powder as a negative electrode active material, and the separator 6 separates the positive electrode mixture 4 from the negative electrode mixture 5, and injects an alkaline electrolyte.
  • Sealing is formed on the press with a special sealing die.
  • An object of the present invention is to provide a mercury-free button type alkaline battery.
  • the object of the present invention is achieved as follows:
  • the button type alkaline battery comprises a positive electrode case, a negative electrode cover, a positive electrode mixture and a negative electrode mixture, and the negative electrode cover has an outward flange, between the positive electrode mixture and the negative electrode mixture
  • a diaphragm is mounted, and a gasket is mounted on the diaphragm, which includes a bottom and an outer wall.
  • the open edge portion of the above-mentioned positive electrode case and the upper edge of the outer wall of the gasket are bent toward the negative electrode cover, on the outer wall of the gasket
  • the edge is fastened to the flange of the negative cover and abuts against the outer surface of the negative cover; the flange of the negative cover has a sealant layer between the bottom and the outer wall of the gasket.
  • the utility model uses a sealing agent layer for sealing, which can effectively prevent the leakage of the alkaline electrolyte.
  • a sealing agent layer for sealing, which can effectively prevent the leakage of the alkaline electrolyte.
  • the upper edge is bent toward the negative cover, and the upper edge of the outer wall of the gasket is fastened to the flange of the negative cover and abuts against the outer surface of the negative cover, and the bottom of the flange of the negative cover does not deform toward the center of the battery during processing, and Processing difficulty is reduced.
  • FIG. 1 is a schematic view of a button type alkaline battery in the prior art
  • Figure 2 is a schematic view of the gasket of the present invention.
  • 3 and 4 are assembly drawings of the gasket ⁇ negative electrode cover of the present invention.
  • buttons type alkaline battery of the present invention are schematic views of a button type alkaline battery of the present invention.
  • FIG. 7 is a schematic view of a spacer (or isolation layer) according to another embodiment of the present invention.
  • FIG. 8 is an assembled view of a spacer (or spacer) and a negative cover according to another embodiment of the present invention
  • FIG. 9 is an assembly of a spacer (or spacer), a negative cover and a gasket according to another embodiment of the present invention
  • FIG. 10 is a schematic view of a button type alkaline battery according to another embodiment of the present invention. ⁇ detailed description ⁇
  • the utility model comprises a positive electrode housing 1 serving as a positive electrode terminal and a negative electrode cover 2 serving as a negative electrode terminal.
  • the positive electrode housing 1 is filled with a positive electrode mixture 4, and the negative electrode cover is provided.
  • 2 is filled with the negative electrode mixture 5, and a separator 6 is installed between the positive electrode mixture 4 and the negative electrode mixture 5, and the separator 6 is mounted thereon.
  • the washer 3 includes a bottom portion, an inner wall 30 and an outer wall 32, and the bottom portion, the inner wall 30 and the outer wall 32 form a recess 34.
  • the thickness of the inner wall 30 gradually decreases in the direction of the upper edge (this technical feature is different from the previous provision.
  • the negative electrode cap 2 described above has an outward "U” shaped flange 20 which is received in the recess 34 of the gasket 3.
  • the open edge portion 10 of the positive electrode case 1 and the upper edge of the outer wall 32 of the gasket 3 are bent toward the negative electrode cover 2, and the upper edge of the outer wall 32 of the gasket 3 is fastened to the "U"-shaped flange 20 of the negative electrode cover 2 and abuts It depends on the outer surface of the negative electrode cover 2.
  • the "U"-shaped flange 20 of the negative electrode cap 2 has a sealant layer 7 between the inner wall 30 of the gasket 3, the bottom portion and the outer wall 32 to prevent leakage of the electrolyte.
  • the sealant layer 7 material is an epoxy resin.
  • the gasket 3 when assembling, the gasket 3 is first provided, the sealing agent is injected into the groove 34 of the gasket 3, and then the negative electrode cover 2 is nested, and the negative electrode cover 2 is filled with the negative electrode mixture 5, the negative electrode mixture.
  • 5 is a mercury-free zinc powder mixture slurry.
  • the positive electrode mixture 1 was charged with a positive electrode mixture 4 which was a manganese dioxide mixture, which was pressed into a cake shape, and two separators 6 were placed thereon to inject an alkaline electrolyte.
  • the negative electrode cover 2 is combined with the positive electrode case 1, and the negative electrode mixture 5 is placed in the face of the separator 6, and is placed in a special mold for the press, and the upper edge of the open edge portion 10 of the positive electrode case 1 and the outer wall 32 of the gasket 3 are directed toward The negative electrode cover 2' is bent in the direction, and the upper edge of the outer wall 32 of the gasket 3 is fastened to the "U"-shaped flange 20 of the negative electrode cover 2 and abuts against the outer surface of the negative electrode cover 2.
  • another embodiment of the present invention includes a positive electrode case 1 serving as a positive electrode end and a negative electrode cover 2 serving as a negative electrode end, and the positive electrode case 1 is filled with the positive electrode mixture 4
  • An isolation sleeve (or a separator) is added to the negative electrode cap 2, and the negative electrode cover is filled with the negative electrode mixture 5, and a separator 6 is mounted between the positive electrode mixture 4 and the negative electrode mixture 5, and the gasket 3 is attached to the separator 6.
  • the gasket 3 described above includes a bottom and an outer wall 32.
  • the negative electrode cover 2 described above has an outward "U" shaped flange 20.
  • the open edge portion 10 of the positive electrode case 1 and the upper edge of the outer wall 32 of the gasket 3 are bent toward the negative electrode cover 2, and the upper edge of the outer wall 32 of the gasket 3 is fastened to the "U"-shaped flange 20 of the negative electrode cover 2 and abuts It depends on the outer surface of the negative electrode cover 2.
  • the inner wall of the negative electrode cover 2 is provided with a spacer sleeve (or isolation layer) 8.
  • the shape of the spacer sleeve (or spacer layer) 8 corresponds to the shape of the inner wall of the negative electrode cover 2, and the bottom portion thereof is fixed to the bottom of the gasket 3, and the gasket
  • the bottom and outer walls 32 of 3 form a recess.
  • the "U" shaped flange 20 of the negative electrode cover 2 is received in the recess.
  • a "U” shaped flange 20 of the negative electrode cap 2 is provided with a sealant layer 7 between the spacer (or barrier layer) 8, the bottom of the gasket and the outer wall 32 to prevent leakage of the electrolyte.
  • the material of the sealant layer 7 is an epoxy resin.
  • the negative electrode cover 2 when assembling, the negative electrode cover 2 is first provided, and the isolation sleeve (or isolation layer) 8 is attached to the inner surface of the negative electrode cover 8 with a sealing agent, and the bottom and the negative electrode of the isolation sleeve (or isolation layer) 8 are provided.
  • the bottom of the "U"-shaped cuff of the cover 2 is coated with a layer of the agent 7, and then inserted into the gasket 3 to fill the negative electrode mixture 5 into the negative electrode.
  • the negative electrode mixture 5 is a mercury-free zinc powder mixture slurry.
  • the mercury-free button-type alkaline battery was fabricated to produce a L736 (LR41) battery.
  • the temperature was stored at a high temperature of 45 ° C, a relative humidity of 90%, a high temperature of 60 ° C, and a relative humidity of 90%.
  • the results are as follows:
  • Example 1 0 0 0.006
  • Example 2 0 0 0.005 Prior Art 0 10 0.006
  • the compression of the gasket is further increased by bending the open edge portion of the positive electrode casing in the radial direction of the battery to keep the electrolytic solution leaked.
  • the compression force of the gasket toward the negative cover also increases, and the bottom of the flange of the negative cover often deforms toward the center of the battery. Since the bottom of the flange of the negative electrode cover is deformed toward the center of the battery, it is impossible to obtain the compression of the gasket required to maintain satisfactory resistance to leakage of the electrolytic solution, and the resistance of the battery to the leakage of the electrolytic solution is reduced, and the electrolytic solution is liable to leak.
  • the utility model uses the sealing agent layer 7 for sealing.
  • the open edge portion 10 of the positive electrode housing 1 is not required to be bent to further increase the compression of the gasket 3 in order to maintain satisfactory resistance to leakage of the electrolytic solution, but
  • the open edge portion 10 of the positive electrode case 1 and the upper edge of the outer wall 32 of the gasket 3 are bent toward the negative electrode cover 2, and the upper edge of the outer wall 32 of the gasket 3 is fastened to the "U"-shaped flange 20 of the negative electrode cover 2 and abuts
  • the bottom of the "U" shaped flange 20 of the negative electrode cover 2 does not deform toward the center of the battery during processing, and the processing difficulty is reduced as compared with the prior art.

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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)

Description

说 明 书 钮扣型碱性电池
【所属技术领域】
本实用新型涉及一种电池， 特别涉及一种用于诸如电子手表、 电子台式计 算器之类的小型电子设备的钮扣型碱性电池。
【背景技术】 目前钮扣型碱性电池的制造方法：
如图 1所示， 正极壳体 1中容纳有二氧化锰作为活性物质的正极混合物 4， 负极盖 2以铁为基材，外层电镀一层镍， 内层电镀一层铟、锡或铜，套上垫圈 (绝 缘圈)； 负极盖 2中容纳有无汞锌粉或锌合金粉末为负极活性物料的负极混合物 5， 隔膜 6将正极混合物 4与负极混合物 5分隔， 并注入碱性电解液， 在冲压机 上用专用封口模具进行封口成形。
在此类钮扣型碱性电池中， 负极混合物 5 若使用无汞锌或锌合金， 在贮存 期间会产生氢气， 以及电池内压增加而导致泄漏电解液， 若使用汞齐化锌粉末， 此等情况可被抑制。 但基于环保的角度考虑， 必须减少汞的使用， 需要制造无 汞化， 不泄漏的钮扣型碱性电池。
【发明内容】 本实用新型的目的在于提供一种无汞的钮扣型碱性电池。
. 本实用新型的目的是这样实现的： 所述钮扣型碱性电池包括正极壳体、 负 极盖、 正极混合物和负极混合物， 上述负极盖具有向外的翻边， 正极混合物与 负极混合物之间安装有隔膜， 隔膜上安装有垫圈， 其包括底部和外壁。 上述正 极壳体的敞口边缘部和垫圈的外壁的上缘朝负极盖方向弯曲， 垫圈的外壁的上
1
确 认 本 缘扣紧于负极盖的翻边并抵靠负极盖的外表面； 负极盖的翻边与垫圈的底部和 外壁之间有封口剂层。
与现有技术相比较， 本实用新型采用封口剂层进行密封， 可有效防止碱性 电解液的泄漏。 另外在加工过程中， 不需弯曲正极壳体的敞口边缘部来进一步 增加垫圈的压缩以便保持对电解溶液泄漏的满意的阻力， 而是将正极壳体的敞 口边缘部和垫圈的外壁的上缘朝负极盖方向弯曲， 垫圈的外壁的上缘扣紧于负 极盖的翻边并抵靠负极盖的外表面， 在加工过程中负极盖的翻边的底部不会朝 电池中心变形， 而且加工难度减少。
【附图说明】
' 图 1是现有技术中的钮扣型碱性电池的示意图；
图 2是本实用新型的垫圈的示意图；
图 3和图 4是本实用新型的垫圈 ^负极盖的装配图；
图 5和图 6是本实用新型的钮扣型碱性电池的示意图；
图 7是本实用新型另一实施例的隔离套 （或隔离层） 的示意图；
图 8是本实用新型另一实施例的隔离套 （或隔离层） 与负极盖的装配图； 图 9是本实用新型另一实施例的隔离套 （或隔离层）、 负极盖与垫圈的装配 图；
图 10是本实用新型另一实施例的钮扣型碱性电池的示意图。 【具体实施方式】
请一并参阅图 5和图 6， 本实用新型包括一个用作正极端的正极壳体 1和一个 用作负电极端的负极盖 2， 在正极壳体 1中充满正极混合物 4， 而在负极盖 2中充 满负极混合物 5， 正极混合物 4与负极混合物 5之间安装有隔膜 6， 隔膜 6上安装有 上述垫圈 3包括底部、 内壁 30和外壁 32， 底部、 内壁 30和外壁 32形成一凹槽 34。 内壁 30的厚度沿上缘方向逐渐减少 (此技术特征与之前提供 不相同。
上述负极盖 2具有向外的 " U"形翻边 20， 其容纳于垫圈 3的凹槽 34内。 正极 壳体 1的敞口边缘部 10和垫圈 3的外壁 32的上缘朝负极盖 2方向弯曲， 垫圈 3的外 壁 32的上缘扣紧于负极盖 2的 "U"形翻边 20并抵靠负极盖 2的外表面。
负极盖 2的 "U"形翻边 20与垫圈 3的内壁 30、底部和外壁 32之间有封口剂层 7， 以阻止电解液的泄漏。 该封口剂层 7材料为环氧树脂。
请一并参阅图 2至图 6， 装配时， 首先提供垫圈 3， 在垫圈 3的凹槽 34内注入 封口剂， 后将负极盖 2套入， 将负极盖 2充满负极混合物 5， 该负极混合物 5为无 汞锌粉混合物浆。
在正极壳体 1中装入正极混合物 4， 其为二氧化锰混合物， 将其压成饼状， 上面放入二片隔膜 6， 注入碱性电解液。
将负极盖 2与正极壳体 1组合， 负极混合物 5面向隔膜 6套入， 置于冲压机用 专用模具封口， 将正极壳体 1的敞口边缘部 10和垫圈 3的外壁 32的上缘朝负极盖 2 '方向弯曲， 垫圈 3的外壁 32的上缘扣紧于负极盖 2的 "U"形翻边 20并抵靠负极盖 2的外表面。
请一并参阅图 9和图 10， 本实用新型的另一实施例包括一个用作正极端的正 极壳体 1和一个用作负极端的负极盖 2， 在正极壳体 1中充满正极混合物 4， 而在 负极盖 2中加入隔离套 （或隔离层）， 并在负极盖中充满负极混合物 5， 正极混合 物 4与负极混合物 5之间安装有隔膜 6， 隔膜 6上安装有垫圈 3。
上述垫圈 3包括底部和外壁 32。
上述负极盖 2具有向外的 "U"形翻边 20。 正极壳体 1的敞口边缘部 10和垫圈 3的外壁 32的上缘朝负极盖 2方向弯曲， 垫圈 3的外壁 32的上缘扣紧于负极盖 2的 "U"形翻边 20并抵靠负极盖 2的外表面。 负极盖 2的内壁附有隔离套 （或隔离层） 8， 该隔离套 （或隔离层） 8的形状 与负极盖 2的内壁的形状相对应， 其底部固定于垫圈 3的底部， 并与垫圈 3的底部 和外壁 32形成一凹槽。 负极盖 2的 " U"形翻边 20容纳于凹槽内。 负极盖 2的 " U" 形翻边 20与隔离套 （或隔离层） 8、 垫圈的底部和外壁 32之间有封口剂层 7， 以 阻止电解液的泄漏。 该封口剂层 7材料为环氧树脂。
请参阅图 7至图 10， 装配时， 首先提供负极盖 2， 用封口剂将隔离套（或隔离 层） 8附于负极盖 8的内表面， 隔离套（或隔离层） 8的底部及负极盖 2的 "U"形 翻边的底部涂一封口剂层 7， 后套入垫圈 3内， 将负极混合物 5填满入负极体内， 此负极混合物 5为无汞锌粉混合物浆。
其它装配方法与实施方法 1相同。
将所制成的无汞钮扣型碱性电池， 制造 L736(LR41)电池， 经过高温 45°C， 相 对湿度 90%及高温 60°C， 相对湿度 90%的环境存放结果如下：
Figure imgf000006_0001
在 60°C， 90%RH下 60°C下储存 28天后 储存后泄漏发生率 高度 (mm)的变化
14天 28天 28天
实施例 1 0 0 0.006 实施例 2 0 0 0.005 现有技术 0 10 0.006 从上述结果可看出， 使用垫圈 3及在间隙中有封口剂层 7可减少电解液的泄 漏， 而达到预期的为实现不泄漏的无汞钮扣型碱性电池。
在现有技术中， 在向内挤压电池正极壳体的敞口边缘部的加工中， 通过沿 电池半径方向弯曲正极壳体的敞口边缘部来进一步增加垫圈的压缩以便保持对 电解溶液泄漏的满意的阻力时， 垫圈朝负极盖的压縮力也增加， 经常会出现负 极盖的翻边底部朝电池中心变形。' 由于负极盖的翻边底部朝电池中心变形， 不 可能获得为保持对电解溶液泄漏的满意的阻力所需的垫圈的压缩， 而电池的对 电解溶液泄漏的阻力减小， 电解溶液易于泄漏。 本实用新型采用封口剂层 7进行 密封， 在加工过程中， 不需弯曲正极壳体 1的敞口边缘部 10来进一步增加垫圈 3 的压缩以便保持对电解溶液泄漏的满意的阻力， 而是将正极壳体 1的敞口边缘部 10和垫圈 3的外壁 32的上缘朝负极盖 2方向弯曲， 垫圈 3的外壁 32的上缘扣紧于负 极盖 2的 "U"形翻边 20并抵靠负极盖 2的外表面， 在加工过程中负极盖 2的 "U" 形翻边 20的底部不会朝电池中心变形， 而且与现有技术相比加工难度减少。
尽管本实用新型是参照具体实施例来描述， 但这种描述并不意味着对本实 用新型构成限制。 参照本实用新型的描述， 所公开的实施例的其它变化， 对于 本领域技术人员都是可以预料的。 因此， 这样的变化不应脱离所属权利要求所 限定的范围及精神。

Claims

权 利 要 求 书
1. 一种钮扣型碱性电池， 其包括正极壳体、 负极盖、 正极混合物和负极混 合物， 上述负极盖具有向外的翻边， 正极混合物与负极混合物之间安装有隔膜， 隔膜上安装有垫圈， 其包括底部和外壁， 其特征在于： 上述正极壳体的敞口边 缘部和垫圈的外壁的上缘朝负极盖方向弯曲， 垫圈的外壁的上缘扣紧于负极盖 的翻边并抵靠负极盖的外表面； 负极盖的翻边与垫圈的底部和外壁之间有封口 剂层。
2. 根据权利要求 1所述的钮扣型碱性电池， 其特征在于： 所述垫圈还包括 内壁， 垫圈的底部、 内壁和外壁形成一凹槽， 负极盖的翻边容纳于垫圈的凹槽 内； 负极盖的翻边与垫圈的内壁、 底部和外壁之间有封口剂层。
3. 根据权利要求 2所述的钮扣型碱性电池， 其特征在于： 所述内壁的厚度 沿上缘方向逐渐减少。
4. 根据权利要求 1所述的钮扣型碱性电池， 其特征在于： 该钮扣型碱性电 池还括隔离套 （或隔离层）， 其形状与负极盖的内壁的形状相对应， 通过封口剂 附于负极盖的内壁， 其底部固定于垫圈的底部， 并与垫圈的底部和外壁形成一 凹槽， 负极盖的翻边容纳于凹槽内， 负极盖的翻边与隔离套 （或隔离层）、 垫圈 的底部和外壁之间有封口剂层。
5. 根据权利要求 1所述的钮扣型碱性电池， 其特征在于： 所述负极盖的翻 边为 "U"形。
1
PCT/CN2004/001581 2004-12-02 2004-12-30 A Button-Shaped Alkaline Battery WO2006058467A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04802593A EP1818999A4 (en) 2004-12-02 2004-12-30 ALKALINE BUTTON CELL
JP2007600009U JP3131145U (ja) 2004-12-02 2004-12-30 ボタン型アルカリ電池
US10/579,532 US20070292755A1 (en) 2004-12-02 2004-12-30 Button Alkaline Battery Cell

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CN200420116760 2004-12-02
CN200420116760.0 2004-12-02

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CN102983295A (zh) * 2012-12-18 2013-03-20 河南创力新能源科技有限公司 一种氢镍扣式电池负极盖及氢镍扣式电池
CN106777471A (zh) * 2016-11-16 2017-05-31 长江大学 测量封窜剂侵入地层深度的模拟实验装置及其测量方法
KR20200129488A (ko) 2019-05-08 2020-11-18 주식회사 엘지화학 전지케이스의 부식을 방지하는 원통형 전지용 가스켓 및 이를 포함하는 원통형 전지
CN113078393B (zh) * 2021-03-29 2022-10-04 天津清研微能科技有限公司 扣式锂电池的密封结构及密封方法
CN114497848A (zh) * 2022-01-11 2022-05-13 双登集团股份有限公司 一种动力电池组防水盒

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EP1818999A4 (en) 2008-11-26
CN2752975Y (zh) 2006-01-18
EP1818999A1 (en) 2007-08-15
US20070292755A1 (en) 2007-12-20
JP3131145U (ja) 2007-04-26

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