JPS58103770A - Alkaline battery - Google Patents
Alkaline batteryInfo
- Publication number
- JPS58103770A JPS58103770A JP56202740A JP20274081A JPS58103770A JP S58103770 A JPS58103770 A JP S58103770A JP 56202740 A JP56202740 A JP 56202740A JP 20274081 A JP20274081 A JP 20274081A JP S58103770 A JPS58103770 A JP S58103770A
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- metal
- negative electrode
- active material
- battery
- 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 40
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000007773 negative electrode material Substances 0.000 abstract description 9
- 239000010410 layer Substances 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007747 plating Methods 0.000 abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910052718 tin Inorganic materials 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 239000011701 zinc Substances 0.000 abstract description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 239000010931 gold Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- 239000011135 tin Substances 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 229910052759 nickel Inorganic materials 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003984 copper intrauterine device Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000679 solder 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
-
- 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負極端子を兼ねた封口板
の改良に関し、封口板内容積を大きくして負極活物質の
充填量を増すとともに、アルカリ電解液に起因した封口
板端部での局部電池の発生を防止することを目的とする
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improving a sealing plate that also serves as a negative electrode terminal in an alkaline battery. The purpose is to prevent the occurrence of local batteries at the edges.
従来のアルカリボタン型電池を第１図で説明するに、内
面に銅層を露出させたニッケルーステンレス鋼−銅のク
ラツド板を絞り加工し、開口部を外側に折り曲げること
によって封口板を構成していた。アルカリボタン型電池
は、一般的に負極活物質２に亜鉛粉を水銀でアマルガム
化して使用している。−！左アルカリボタン型電池の放
電容量は負極活物質２の充填量によって大きく左右され
る。To explain a conventional alkaline button battery in Figure 1, a nickel-stainless steel-copper clad plate with a copper layer exposed on the inner surface is drawn, and the opening is bent outward to form a sealing plate. was. Alkaline button batteries generally use zinc powder amalgamated with mercury as the negative electrode active material 2. -! The discharge capacity of the left alkaline button battery is largely influenced by the amount of negative electrode active material 2 filled.
そこで負極活物質２を可能なたけ多量に充填するため、
封口板１の構造も種々検討され、第２図の断面図で示さ
れる封口板形状が考案された。Therefore, in order to fill as much negative electrode active material 2 as possible,
Various structures of the sealing plate 1 were studied, and the shape of the sealing plate shown in the cross-sectional view of FIG. 2 was devised.
図中、３は封口リング、４は正極ケース、５はセパレー
タ、６は正極活物質である。In the figure, 3 is a sealing ring, 4 is a positive electrode case, 5 is a separator, and 6 is a positive electrode active material.
この第２図に示される封口板１の形状は、第１図に示さ
れる封口板１の形状と比較すると、開口部に外側への折
り返し部が存在しないため約１５％内容積が拡大され、
負極活物質２の充填量もそれに応じて約１５％多く充填
することが可能になる。 ・
しかし第２図に示す構造は、封口板１の開口部に金属ク
ラツド板の切断部が露出している。第２図のＡ部の拡大
断面図を第３図に示す。Compared to the shape of the sealing plate 1 shown in FIG. 1, the shape of the sealing plate 1 shown in FIG. 2 has an internal volume expanded by about 15% because there is no outward folding part at the opening.
Accordingly, the amount of negative electrode active material 2 can be increased by about 15%. - However, in the structure shown in FIG. 2, the cut portion of the metal clad plate is exposed at the opening of the sealing plate 1. FIG. 3 shows an enlarged sectional view of section A in FIG. 2.
絶縁封口リング３と嵌合でれた負極封口板１には、負極
活物質２であるアマルガム化された亜鉛粉と、アルカリ
性電解液とが充填はれて電池が構成さ汎るが、電池構成
後アルカリ電解液は封口板１と封口リング３との境界面
に進入し、ついには、封口板１の開口切断ｌ［ｓｌｏに
到達する。アルカリ電池の開ロ切１：ソ１部は、封口板
１を構成する銅７−ステンレス鋼８−ニッケル９の三種
の金属が露出している。The negative electrode sealing plate 1 fitted with the insulating sealing ring 3 is filled with amalgamated zinc powder, which is the negative electrode active material 2, and an alkaline electrolyte to form a battery. The alkaline electrolyte then enters the interface between the sealing plate 1 and the sealing ring 3, and finally reaches the opening cut l[slo] of the sealing plate 1. Three metals, copper 7, stainless steel 8, and nickel 9, constituting the sealing plate 1 are exposed at the opening 1 of the alkaline battery.
しかし、ステンレス鋼８とニッケル９とは負極亜鉛２に
含ま几る水銀によって容易にはアマルガム化されないた
め、封口板１の開口切断部１０に電解液が付着すると、
アマルガム化された銅層７とステンレス鋼８又はニッケ
ル９との間で局部電池を構成し、この切断部１０から水
素ガスが発生する。However, since the stainless steel 8 and nickel 9 are not easily amalgamated by the mercury contained in the negative electrode zinc 2, when the electrolyte adheres to the opening cut portion 10 of the sealing plate 1,
A local battery is formed between the amalgamated copper layer 7 and the stainless steel 8 or nickel 9, and hydrogen gas is generated from the cut portion 10.
この水素ガスは、電池内圧を筒め、その圧力によって電
解液を封口板１と封口リング３との間、又は封口リング
３と正極ケース４との間から押し出して漏液を生じてい
た。This hydrogen gas suppressed the internal pressure of the battery, and the pressure forced the electrolyte from between the sealing plate 1 and the sealing ring 3 or between the sealing ring 3 and the positive electrode case 4, causing liquid leakage.
本発明者らは、封口板１の内容積を最大にし、かつ前述
した欠点を解決するため、封口板につき種々検討を行な
い、良好な結果を得ることに成功した。The present inventors conducted various studies on the sealing plate in order to maximize the internal volume of the sealing plate 1 and solve the above-mentioned drawbacks, and succeeded in obtaining good results.
以下、本発明を第４図の封口板１開ロバ１３の拡大ｆｉ
ＩＣ，１：り説明する。すなわち、封口板１の開口切
断部１０を中心に、負極活物質と接触する内側部分及び
電池使用機器の端子と接触する外側部分とを除いた表面
の一部分に封口板１の内面と同様のアマルガム化され易
い金属１１の被覆層を設けたものである。Hereinafter, the present invention will be described in an enlarged view of the sealing plate 1 opening lever 13 in FIG.
IC, 1: Explain. That is, amalgam similar to the inner surface of the sealing plate 1 is formed on a part of the surface of the sealing plate 1, centering on the opening cut portion 10, excluding the inner part that contacts the negative electrode active material and the outer part that contacts the terminal of the device using the battery. A coating layer of metal 11, which is easily oxidized, is provided.
この際の被覆金属１１は、金、銀、銅、スズ、亜鉛等で
あり、これらは容易に電気メッキ、又は無電解メッキす
ることが可能である。そしてそのメッキ厚を１ｏミクロ
ン以上とすることで信頼性の高いメッキ層を得ることが
可能である。The coating metal 11 at this time is gold, silver, copper, tin, zinc, etc., and these can be easily electroplated or electroless plated. By setting the plating thickness to 10 microns or more, it is possible to obtain a highly reliable plating layer.
またメッキ以外の方法としては、封口板１の切断部１０
を、比較的融点の低い金属浴の中にディッピングするこ
とによっても可能である。例えばハンダ合金浴やスズ洛
中である。この方法でも、非常に信頼性の高い金属１１
層を封口板１の開口切断部１０に付着させることが可能
である。In addition, as a method other than plating, the cut portion 10 of the sealing plate 1
It is also possible to do so by dipping the metal into a metal bath having a relatively low melting point. For example, solder alloy bath and tin Rakuchu. Even with this method, very reliable metal 11
It is possible to apply the layer to the aperture cut 10 of the sealing plate 1.
このアマルガム化され易い金属１１は、第４図の断面図
て示される様に、封口板１の外周のニッケル層９を、１
〜２ｍｍの高さまで被覆することが好捷しい。電解液が
封口板１と封口リング３との境界に進入しアマルガム化
さ′ｔ″Ｌない金属と接触した時に水素ガスが発生する
ため、封口板１外周のニッケル層９０表面は、前記アマ
ルガム可能な金属によりある程度被覆されていた方が良
い。This metal 11, which is easily amalgamated, covers the nickel layer 9 on the outer periphery of the sealing plate 1.
It is preferred to cover up to a height of ~2 mm. Hydrogen gas is generated when the electrolyte enters the boundary between the sealing plate 1 and the sealing ring 3 and comes into contact with metal that is not amalgamated. It is better if it is covered with a certain amount of metal.
本発明による封口板１の開口切断部１０をアマルガム化
容易な金属１１で被覆することにより、開口部を外周部
側へ折９曲った封口板１を使用する電池よりも、放電容
量をその容積増加分たけ増加させることが可能となり、
又水素ガスの発生に起因する漏液も皆無となる。By covering the opening cut portion 10 of the sealing plate 1 according to the present invention with a metal 11 that is easily amalgamated, the discharge capacity can be increased by more than a battery using a sealing plate 1 in which the opening is bent nine times toward the outer periphery. It becomes possible to increase by the amount of increase,
Furthermore, there is no leakage caused by the generation of hydrogen gas.
今、直径１１．６ｍｍ、総高５．４ ｍｍのＲ４４サイ
ズの水銀電池での試作結果を次表に示す。The following table shows the results of a trial production using an R44 size mercury battery with a diameter of 11.6 mm and a total height of 5.4 mm.
以下余白
６、 、
なお表中、Ａは第１図の断面図に示される電池、Ｂは第
２図の断面図に示される電池、Ｃは本発明による電池で
ある。Margin 6 below.In the table, A is the battery shown in the sectional view of FIG. 1, B is the battery shown in the sectional view of FIG. 2, and C is the battery according to the invention.
第１図及び第２図は従来のアルカリボタン型電池の断面
図、第３図は第２図のＡ部の拡大断面図。
第４図は本発明によるＡ部の拡大断面図である。
１・・・・・・・・・封口板、２・・・・・・・・・負
極活物質、３・旧・・・・・封口リング、４・・・・・
印・正ｔｊＭケース、５・・・・山・・セパレータ、６
・・・・・・・・・正極活物質、７・・・・川・・銅層
、８・・・・・・・・・ステンレス鋼、９・・・・山・
・ニッケル、１０・・・・・・・・・封口板の開口切断
部、１１・・・・・す・・アマルガム化され易い金属層
。
第１図
第３図
第４図
ノ1 and 2 are sectional views of a conventional alkaline button battery, and FIG. 3 is an enlarged sectional view of section A in FIG. 2. FIG. 4 is an enlarged sectional view of section A according to the present invention. 1... Sealing plate, 2... Negative electrode active material, 3 Old... Sealing ring, 4...
Mark/correct tjM case, 5...mountain...separator, 6
......Positive electrode active material, 7...River...Copper layer, 8...Stainless steel, 9...Mountain...
- Nickel, 10... Opening cut portion of sealing plate, 11... Su... Metal layer that is easily amalgamated. Figure 1 Figure 3 Figure 4
Claims (1)
を形成しない封目板の内外表面のうち、負極と接触する
内側部分及び電池使用機器の端子と電気的に接触する外
側部分とを除いた表面の少なくとも一部分を、易アマル
ガム化性金属で被覆したアルカリ電池。Among the inner and outer surfaces of a sealing plate that also serves as a negative electrode terminal and does not form an outward fold at the opening, the surface excludes the inner part that contacts the negative electrode and the outer part that electrically contacts the terminal of a battery-powered device. an alkaline battery, at least a portion of which is coated with an easily amalgamated metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56202740A JPS58103770A (en) | 1981-12-15 | 1981-12-15 | Alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56202740A JPS58103770A (en) | 1981-12-15 | 1981-12-15 | Alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58103770A true JPS58103770A (en) | 1983-06-20 |
Family
ID=16462372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56202740A Pending JPS58103770A (en) | 1981-12-15 | 1981-12-15 | Alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58103770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534963U (en) * | 1991-10-23 | 1993-05-14 | フランスベツド株式会社 | Bed device |
-
1981
- 1981-12-15 JP JP56202740A patent/JPS58103770A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534963U (en) * | 1991-10-23 | 1993-05-14 | フランスベツド株式会社 | Bed device |
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