JPS58106754A - Alkaline battery - Google Patents
Alkaline batteryInfo
- Publication number
- JPS58106754A JPS58106754A JP56203875A JP20387581A JPS58106754A JP S58106754 A JPS58106754 A JP S58106754A JP 56203875 A JP56203875 A JP 56203875A JP 20387581 A JP20387581 A JP 20387581A JP S58106754 A JPS58106754 A JP S58106754A
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- slanting
- plate
- inwardly
- negative electrode
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 239000011701 zinc Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 239000007773 negative electrode material Substances 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 abstract description 2
- 239000001913 cellulose Substances 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 238000003860 storage Methods 0.000 description 6
- 229910000497 Amalgam Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- -1 copper Chemical compound 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01M50/147—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルカリ電池における封口板の改良に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in sealing plates for alkaline batteries.
従来より、負極活物質として氷化亜鉛、正極活物質とし
て、酸素、あるいは金属酸化物、電解液としてか性アル
カリ電解液を用いて構成される、 −
いわゆるアルカリ電池は、その優秀な電気化学特性によ
り、近年その需要が増大しつつある。Traditionally, so-called alkaline batteries have been constructed using frozen zinc as the negative electrode active material, oxygen or metal oxide as the positive electrode active material, and caustic alkaline electrolyte as the electrolyte - due to their excellent electrochemical properties. Therefore, the demand for it has been increasing in recent years.
しかしながらこれ等の電池の問題点としては、負極活物
質として金属亜鉛を用・いるため、この亜鉛防食の上か
ら亜鉛表面に水銀を拡散溶解させた氷化亜鉛粉末を用い
、負極活物質と接する金属封口板の内面は、イオン化傾
向が亜鉛より小かまたはこれに近似し、さらに氷化亜鉛
から移行する水銀によってアマルガム化を受は易い金属
、例えば、銅、銅合金、スズ、インジウム、金、銀など
の層を設け、アマルガムの進行につれて水素過電圧が増
大することにより局部電池が消失する様に成す必要があ
る。しかしながら、これ等の易氷化性金属単独で、この
種の電池の負極活物質収納容器（以下封口板と記す）を
構成した場合、下記の様な不都合が生じる。However, the problem with these batteries is that metallic zinc is used as the negative electrode active material, so icy zinc powder, in which mercury is diffused and dissolved on the zinc surface, is used over the zinc corrosion protection to make contact with the negative electrode active material. The inner surface of the metal sealing plate is made of a metal whose ionization tendency is smaller than or similar to that of zinc and which is easily amalgamated by mercury transferred from frozen zinc, such as copper, copper alloy, tin, indium, gold, It is necessary to provide a layer of silver or the like so that as the amalgam progresses, the hydrogen overvoltage increases and the local cell disappears. However, when the negative electrode active material storage container (hereinafter referred to as a sealing plate) of this type of battery is constructed of these easily freezing metals alone, the following disadvantages occur.
■ 長期に渡って外気に接する゛ととにより変色。■ Discoloration due to long-term exposure to outside air.
サビ等の発生がある。There is occurrence of rust etc.
■ 射水化性金属であるだめ、長期保存中にアマルガム
層が順次拡散して行き、電池端子部首で３
アマルガムが進行し、アマルガムの進行とともに電解液
がはい上がって電池端子面を腐食してしまう。■ Because the metal is water-injectable, the amalgam layer gradually diffuses during long-term storage, and amalgam develops at the neck of the battery terminal.As the amalgam progresses, the electrolyte leaks up and corrodes the battery terminal surface. Put it away.
との■、■の理由により、従来にあってはこれ等の射水
化性金属を、離氷化性金属、例えばステンレス鋼、ニッ
ケルに爆着法、冷間圧延法等で貼り合わせて一体化させ
た、いわゆるクラツド材を用いて封目板を構成していた
。これ等の封目板の構成法としては、クラツド材を絞り
加工によシ第２図に示す様なコツプ状として使用してい
た。この場合、絞り加工後の打抜き時において切断部ム
の部分には集中荷重が負荷されるため、ミクロ的に観察
すると第３図に示す如く絞シ加工時のプレス圧力によっ
てクラツド材の射水化性金属層Ｂ、難氷化性金属層Ｃの
いずれかに特、に厚みの薄い金属層側に剥離部りが発生
する場合が多々ある。For reasons of ■ and ■, conventionally these water-repellent metals are bonded to de-icing metals, such as stainless steel or nickel, by explosion bonding, cold rolling, etc. The sealing plate was constructed using a so-called clad material. These sealing plates were constructed by drawing a clad material into a spout shape as shown in FIG. 2. In this case, during punching after drawing, a concentrated load is applied to the cutting part, and microscopically, as shown in Figure 3, the cladding material becomes water-injectable due to the press pressure during drawing. Peeling often occurs in either the metal layer B or the anti-icing metal layer C, especially on the thinner metal layer side.
このような封目板を用いて電池を構成した場合、氷化亜
鉛粉末が離氷化性金属層に接触するか、亜鉛イオンが接
触した場合、局部電池が形成される− ため亜鉛の腐食
が起こり、水素ガスを発生して亜特開昭５８−１０６７
５４（２２′
鉛の電気化学的エネルギーを零に近い状態にしてしまい
極めて不都合である。When a battery is constructed using such a sealing plate, if the deicing zinc powder comes into contact with the deicing metal layer, or if the zinc ions come into contact with it, a local battery will be formed - and zinc corrosion will occur. occurs and generates hydrogen gas
54 (22') This is extremely inconvenient as it brings the electrochemical energy of lead to a state close to zero.
本発明は前述の問題点を解消するものである。The present invention solves the aforementioned problems.
以下、第１図に示すボタン型空気−亜鉛電池によりその
実施例を説明する。図において１は正極端子を兼ねる正
極缶で、底部に空気供給孔２を設けである。３は含液性
に優れる吸液体で、セルロースよシ構成されている。４
は微孔性のフッ素樹脂膜で、電解液の漏液を防止してい
る。６は正極であり、ニッケル芯材６ａ及びこのニッケ
ル芯材に充填した活性炭を庇成分とする触媒５ｂよりな
る。６は正極６の上面に配したセパレータで、正・負極
間の内部短絡を防止する微孔性ポリプロピレンよりなる
。７は後述する本発明の要点とする封口板で、負極活物
質８である氷化亜鉛粉末とアルカリ電解液とを内填して
いる。９は封口板７と正極缶１とを絶縁してなる封口ガ
スケットで、通常エンジニアリングプラスチックよシな
る。次に本発明の封口板７について述べると、周縁垂直
部７Ｃの下端部に、内径方向に傾斜した部分７ａと、こ
５、
の傾斜部に重なって外側へ延出したＵ字状折り返し部７
ｂを設けている。ここで封口板総高をｈ２゜折り返し部
の高さをｈｌとした時、ｈ１／ｈ２を０．２〜０．３と
なる様に断面Ｕ字状に折シ返し部分７ｂを設けるとよい
。An example of the button type air-zinc battery shown in FIG. 1 will be described below. In the figure, numeral 1 denotes a positive electrode can that also serves as a positive electrode terminal, and an air supply hole 2 is provided at the bottom. 3 is a liquid-absorbing material with excellent liquid-retaining properties, and is composed of cellulose. 4
is a microporous fluororesin membrane that prevents electrolyte from leaking. Reference numeral 6 denotes a positive electrode, which is composed of a nickel core material 6a and a catalyst 5b whose eaves component is activated carbon filled in the nickel core material. A separator 6 is placed on the upper surface of the positive electrode 6 and is made of microporous polypropylene to prevent internal short circuit between the positive and negative electrodes. Reference numeral 7 denotes a sealing plate which is the main point of the present invention, which will be described later, and is filled with frozen zinc powder, which is the negative electrode active material 8, and an alkaline electrolyte. A sealing gasket 9 insulates the sealing plate 7 and the positive electrode can 1, and is usually made of engineering plastic. Next, regarding the sealing plate 7 of the present invention, at the lower end of the peripheral vertical portion 7C, there is a portion 7a that is inclined in the inner diameter direction, and a U-shaped folded portion 7 that overlaps the inclined portion and extends outward.
b. Here, when the total height of the sealing plate is h2° and the height of the folded portion is hl, it is preferable to provide the folded portion 7b with a U-shaped cross section so that h1/h2 is 0.2 to 0.3.
つまり、ｈ１／ｈ２が０．２０以下の場合にあっては、
プレス加工上、Ｕ字状に折り返すのが困難であり、０・
３０以上であると傾斜部の長さが大となシ、封口板の内
容積が小さくなって実質上、電池の実容量が低下し意味
がないためである。次表に外径１１．６ｍｍ、総高５．
４１１１のＲ４４タイプの空気亜鉛電池を構成し、保存
後の特性について調査した結果を示す。保存特性につい
ては負荷抵抗６２０Ω定抵抗放電を実施した時の実容量
を示す（保存温度は４６℃）。封口板内容積については
、第２図に示す様なＵ字状の折り返し部のない従来方式
の封口板７を１００とした時の容積比を示す。In other words, when h1/h2 is less than 0.20,
During press processing, it is difficult to fold back into a U-shape, and the
This is because if it is 30 or more, the length of the inclined portion becomes large and the internal volume of the sealing plate becomes small, which substantially reduces the actual capacity of the battery and is meaningless. The following table shows an outer diameter of 11.6 mm and a total height of 5.
4111 R44 type zinc-air battery was constructed, and the results of investigating the characteristics after storage are shown. Regarding storage characteristics, the actual capacity is shown when constant resistance discharge is performed with a load resistance of 620Ω (storage temperature is 46°C). Regarding the internal volume of the sealing plate, the volume ratio is shown when the conventional sealing plate 7 without a U-shaped folded portion as shown in FIG. 2 is taken as 100.
この表より明らかな如く、本発明によるものは４６℃、
１２チ月保存における容量劣化率が８〜９チであるのに
対し、従来のものは４４チと極めて高く、本発明の封目
板の有効性が十分認められる。これは、プレス加工時に
おいて絞り加工後の切断加工を行なう部分に集中荷重が
負荷されるため、異種金属同志を貼り合わせによって一
体化した金属素材にあっては、どちらか一方の金属材に
剥離あるいはクラック等が発生しやすいため、前述の様
な問題が発生するものである。本発明の封目板ではその
剥離部あるいはクラックが発生しやすい部分を外側へＵ
字状に折り返すことによって、直接亜鉛負極と接触しな
いよう、にするとともに封口板容積の減少を少なくしだ
ものである。As is clear from this table, the product according to the present invention has a temperature of 46°C.
The capacity deterioration rate after storage for 12 months is 8 to 9 inches, whereas the conventional one is extremely high at 44 inches, which fully confirms the effectiveness of the sealing plate of the present invention. This is because a concentrated load is applied to the part that is cut after drawing during press working, so when metal materials are made by bonding dissimilar metals together, one of the metal materials may peel off. Alternatively, since cracks and the like are likely to occur, the above-mentioned problems occur. In the sealing plate of the present invention, the peeled part or the part where cracks are likely to occur is moved outward.
By folding it in the shape of a letter, it prevents direct contact with the zinc negative electrode and reduces the reduction in the volume of the sealing plate.
第１図は本発明の封目板を用いたボタン型空気−亜鉛電
池の断面図、第２図は従来の封口板の要部断面図、第３
図は従来の封口板の切断部の要部拡大断面図である。
１・・・・・・正極缶、５・・・・・・正極、６・・・
・・・セパレータ、７・・・・・封口板、７１Ｌ・・・
・・・内径方向への傾斜部、７ｂ・・・・・・Ｕ字状折
り返し部、７Ｃ・・・・・・周縁垂直部、８・・・・・
負極、９・・・・・・封口ガスケット。Fig. 1 is a sectional view of a button-type air-zinc battery using the sealing plate of the present invention, Fig. 2 is a sectional view of main parts of a conventional sealing plate, and Fig. 3
The figure is an enlarged sectional view of a main part of a cut portion of a conventional sealing plate. 1...Positive electrode can, 5...Positive electrode, 6...
... Separator, 7... Sealing plate, 71L...
... Inclined part in the inner diameter direction, 7b ... U-shaped folded part, 7C ... Perpendicular peripheral part, 8 ...
Negative electrode, 9...Sealing gasket.
Claims (2)
からなる封口板を備えたアルカリ電池であって、氷化亜
鉛負極と接する内側部分に射水化性金属を配し、かつそ
の周縁垂直部の下端部に内径方向に傾斜した部分とこの
傾斜部に連なって外側へ延出したＵ字状折シ返し部を設
けたアルカリ電池。(1) An alkaline battery equipped with a sealing plate made of a material that integrates a deicing metal and a deicing metal, in which the deicing metal is disposed on the inner part in contact with the deicing zinc negative electrode, and An alkaline battery that is provided with a portion inclined in the inner diameter direction at the lower end of the vertical peripheral portion and a U-shaped folded portion that extends outward and is continuous with the inclined portion.
の高さをｈｌとした際、ｈ１／ｈ２が０．２〜０．３
テある特許請求の範囲第１項記載のアルカリ電池。(2) Set the total height of the sealing plate to b2. When the height of the U-shaped folded part is hl, h1/h2 is 0.2 to 0.3
An alkaline battery according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203875A JPS58106754A (en) | 1981-12-17 | 1981-12-17 | Alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203875A JPS58106754A (en) | 1981-12-17 | 1981-12-17 | Alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58106754A true JPS58106754A (en) | 1983-06-25 |
Family
ID=16481156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56203875A Pending JPS58106754A (en) | 1981-12-17 | 1981-12-17 | Alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58106754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2405743A (en) * | 2003-09-05 | 2005-03-09 | Bosch Gmbh Robert | Battery Pack |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556741A (en) * | 1978-06-30 | 1980-01-18 | Matsushita Electric Ind Co Ltd | Manufacturing method of sealing plate for battery |
-
1981
- 1981-12-17 JP JP56203875A patent/JPS58106754A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556741A (en) * | 1978-06-30 | 1980-01-18 | Matsushita Electric Ind Co Ltd | Manufacturing method of sealing plate for battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2405743A (en) * | 2003-09-05 | 2005-03-09 | Bosch Gmbh Robert | Battery Pack |
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