JPS5999678A - Silver (ii) oxide cell - Google Patents
Silver (ii) oxide cellInfo
- Publication number
- JPS5999678A JPS5999678A JP20973882A JP20973882A JPS5999678A JP S5999678 A JPS5999678 A JP S5999678A JP 20973882 A JP20973882 A JP 20973882A JP 20973882 A JP20973882 A JP 20973882A JP S5999678 A JPS5999678 A JP S5999678A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- oxide
- silver oxide
- lead dioxide
- zinc
- 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
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
- H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は亜鉛を陰極活物質としかつ酸化第二銀（Ａｇ
Ｏ） を陽極主活物質とした酸化第二銀電池に関する
。Detailed Description of the Invention This invention uses zinc as a cathode active material and silver oxide (Ag
This invention relates to a silver oxide battery using O) as the main active material of the anode.
従来、この種の電池では、陰極活物質としての亜鉛の含
量より陽極活物質としての酸化第二銀またはこれと酸化
第−銀（ＡｇｚＯ） との混合物の含量が、電気量換
算で約１０％位多くなるように設定して、過放電による
ガス発生を可及的に抑止し、これによって電池のふくれ
、破裂などの問題を未然に防止している。しかるに、上
記方式では、非常に高価な酸化銀を浪費することになり
、酸化第二銀電池のコストアップにもつながるから、必
ずしも好ましいものとはいえなかった。Conventionally, in this type of battery, the content of ferric oxide or a mixture of ferric oxide and silver oxide (AgzO) as an anode active material is about 10% in terms of electricity compared to the content of zinc as a cathode active material. This is done to suppress gas generation due to over-discharge as much as possible, thereby preventing problems such as battery swelling and explosion. However, the above method was not necessarily preferable because very expensive silver oxide was wasted and the cost of the silver oxide battery increased.
この発明は、上記欠点を回避するために鋭意検討した結
果、酸化第二銀またはこれと酸化第−銀とからなる陽極
活物質中にさらに比較的多量の二酸化鉛を添加し、これ
を活物質の一部として利用することにより、前記従来の
問題を克服することに成功した。As a result of extensive studies to avoid the above-mentioned drawbacks, the present invention has been developed by adding a relatively large amount of lead dioxide to the positive electrode active material composed of silver oxide or silver oxide and silver oxide, and adding lead dioxide to the active material. By using the method as part of the system, the above-mentioned conventional problems were successfully overcome.
すなわち、この発明は、亜鉛を陰極活物質としかつ陽極
合剤か酸化銀（酸化第二銀またはこれと酸化第−銀）（
！：共に二酸化鉛を含む酸化第二銀電池において、上記
亜鉛の含量が電気量換算て酸化銀の含量以上であると共
に酸化銀と二酸化鉛との合計含量より少ないことを特徴
とする酸化第二銀電池に係るものである。That is, this invention uses zinc as a cathode active material and uses either an anode mixture or silver oxide (silver oxide or silver oxide and silver oxide) (
! :A ferric oxide battery both containing lead dioxide, characterized in that the content of zinc is greater than the content of silver oxide in terms of electricity and is less than the total content of silver oxide and lead dioxide. This is related to batteries.
このように、この発明においては、従来の電池が電気量
換算でＡｇｅ（またはこれとＡｇ２０）含１）Ｚｎ含量
なる関係をとっていたのに対し、陽極活物質の一部とし
て二酸化鉛（ｐｂｏ２）を用いることにより、電気量換
算で、Ａｇｅ（またはこれとＡｇ、、０）＋ＰｂＯ２の
合計金１）Ｚｎ含量≧Ａｇ０（またはこれとＡｇ２０）
含量、なる関係を満足させるようにしたものである。In this way, in this invention, whereas conventional batteries had a relationship of Age (or this and Ag20) and 1) Zn content in terms of electrical quantity, lead dioxide (pbo2) was used as part of the anode active material. ), the total gold of Age (or this and Ag, 0) + PbO2 1) Zn content ≧ Ag0 (or this and Ag20)
It is designed to satisfy the following relationship:
この方式によれは、酸化銀をほぼ１００％放電反応に関
与させることができるから高価な酸化銀を浪費すること
がなく、しかも二酸化鉛の使用量に応じて酸化銀の絶対
量を低減できるため、酸化第二銀電池のコスト低下を図
ることかできる。一方、亜鉛含量に対する陽極活物質の
合計含量は電気量換算で多くなるように設定されている
から、従来と同様に過放電によるガス発生に起因した電
池のふくれ、破壊などの問題をきたすことがない。This method allows almost 100% of silver oxide to be involved in the discharge reaction, so expensive silver oxide is not wasted, and the absolute amount of silver oxide can be reduced according to the amount of lead dioxide used. , it is possible to reduce the cost of silver oxide batteries. On the other hand, since the total content of the anode active material relative to the zinc content is set to be large in terms of electricity, problems such as battery swelling and destruction due to gas generation due to overdischarge will not occur, as in the past. do not have.
なお、この発明において使用する二酸化鉛は酸化銀に対
して良好な導電助剤として機能する。したがって、従来
の電池に不可欠とされていたようなカーボンの如き他の
導電助剤を用いる必要はとくにない。二酸化鉛を上記導
電助剤としてのみ機能させるときには、その使用量は酸
化銀上の合計量巾約５重量％程度の少量でよいが、この
発明では前述の如く活物質として利用することを主目的
としているから、上記使用量よりさらに多くする必要か
ある。一般には、酸化銀活物質との合計量巾約５〜５０
重量％程度である。Note that the lead dioxide used in this invention functions as a good conductive additive for silver oxide. Therefore, there is no particular need to use other conductive additives such as carbon, which have been considered indispensable in conventional batteries. When lead dioxide functions only as the above-mentioned conductive aid, the amount used may be as small as about 5% by weight of the total amount on the silver oxide, but the main purpose of this invention is to use it as an active material as described above. Therefore, is it necessary to use even more than the above amount? Generally, the total amount range with silver oxide active material is about 5 to 50
It is about % by weight.
以下に、この発明の実施例を記載してより具体的に説明
Ｖる。Below, examples of the present invention will be described in more detail.
実施例
酸化第二銀粉末３５重量部、酸化第一銀粉末３５重暗部
および二酸化鉛粉末３０重量部を混合し、その１９５ｍ
９を５トン／ｄで加圧成形して、直径９ ｎＬｍ 、厚
み０．５ ｍ、ｍの成形陽極合剤とした。この合剤を用
いて常法により第１図に示される如きボタン型の酸化第
二銀電池を作製した。Example 35 parts by weight of ferric oxide powder, 35 parts by weight of ferrous silver oxide powder and 30 parts by weight of lead dioxide powder were mixed, and 195 m
9 was pressure-molded at 5 tons/d to obtain a molded anode mixture having a diameter of 9 nLm and a thickness of 0.5 m. Using this mixture, a button-shaped ferric oxide battery as shown in FIG. 1 was prepared by a conventional method.
すなわち、アルカリ電解液の一部が注入された陽極缶２
に前記の成形陽極合剤１を挿入し、この合剤１上にセパ
レータ３および電解液吸収体４を順次載置した。That is, the anode can 2 into which a part of alkaline electrolyte is injected
The above-mentioned molded anode mixture 1 was inserted, and the separator 3 and electrolyte absorber 4 were placed on this mixture 1 in this order.
つきに、この状態の陽極缶２を、周縁部に環状ガスケッ
ト７を嵌着させかつ５５ｍ２のアマルガム化亜鉛を活物
質とする陰極６と残り大半部のアルカリ電解液とを内填
した陰極端子板５に嵌合し、陽極缶２の開口部を内方へ
締め付けわん曲させてその内周面を環状ガスケット７に
圧接させて封口することにより、第１図に示すような構
成のボタン型の酸化第二銀電池を作製した。At the same time, the anode can 2 in this state was fitted with an annular gasket 7 around its periphery, and a cathode terminal plate containing 55 m2 of the cathode 6 containing amalgamated zinc as an active material and the remaining majority of the alkaline electrolyte. 5, the opening of the anode can 2 is tightened and bent inward, and its inner peripheral surface is pressed into contact with the annular gasket 7 to seal it, thereby forming a button-shaped structure as shown in FIG. A silver oxide battery was fabricated.
なお、使用した陽極缶２は鉄製で表面をニッケルメッキ
したものであり、陰極端子板５は銅−ステンレス鋼−ニ
ッケルクラッド板製である。セパレータ３としてはセロ
ファンの両側にグラフトフィルム（架橋低密度ポリエチ
レンフィルムにメタクリル酸をグラフト重合させたグラ
フトフィルム）をラミネートした複合膜が使用され、電
解液吸収体４はポリプロピレン不織布からなるものであ
る。アルカリ電解液としては酸化亜鉛を溶解させた２５
重量％の苛性ソーダ水溶液を使用した。また、電池（ボ
タン型）の直径は９．５ ｍｍ ｓ高さは２、０ ｍｍ
である。The anode can 2 used was made of iron and had its surface plated with nickel, and the cathode terminal plate 5 was made of a copper-stainless steel-nickel clad plate. As the separator 3, a composite membrane is used in which a graft film (a graft film obtained by graft polymerizing methacrylic acid to a cross-linked low-density polyethylene film) is laminated on both sides of cellophane, and the electrolyte absorber 4 is made of a polypropylene nonwoven fabric. As an alkaline electrolyte, 25 in which zinc oxide is dissolved is used.
A % by weight aqueous solution of caustic soda was used. Also, the battery (button type) has a diameter of 9.5 mm and a height of 2.0 mm.
It is.
比較例
酸化第二銀粉末４５重量部、酸化第一銀粉末４５重量部
および金属銀１０重量部を混合し、その１９５”Ｐを５
トン／ Ｃａて加圧成形して、直径９ ｍｍ。Comparative Example 45 parts by weight of ferric oxide powder, 45 parts by weight of ferrous oxide powder and 10 parts by weight of metallic silver were mixed, and the 195"P was 5 parts by weight.
Pressure molded to a diameter of 9 mm.
厚み０．５ ｍｍの成形陽極合剤とした。この合剤を用
いて以下実施例と全く同様にして酸化第二銀電池を作製
した。A molded anode mixture with a thickness of 0.5 mm was prepared. Using this mixture, a silver oxide battery was produced in exactly the same manner as in the examples below.
上記実施例および比較例の酸化第二銀電池につき、２２
にΩ負荷での放電時間と電池電圧との関係を調べたとこ
ろ、第２図の曲線−Ａ、Ｂに示さ第１るとおりであった
。曲線−Ａは実施例の結果、曲線−Ｂは比較例の結果で
ある。この図から明らかなように、実施例では比較例に
較べて酸化銀の使用量を少なくしているにもかかわらず
ほぼ同様の電気容量が得られていることがわかる。For the silver oxide batteries of the above examples and comparative examples, 22
When the relationship between the discharge time and battery voltage under an Ω load was investigated, the results were as shown in curves A and B in FIG. Curve-A is the result of the example, and curve-B is the result of the comparative example. As is clear from this figure, it can be seen that almost the same capacitance was obtained in the example as compared to the comparative example even though the amount of silver oxide used was smaller.
つぎに、上記実施例および比較例の酸化第二銀電池につ
き、所定日数過放電させたときの電池の総高変化（ガス
発生に基づくふくれ）を調べた結果は、つぎの表に示さ
れるとおりであった。これより、実施例および比較測具
総高変化は認められず、陰陽極の電気量バランスがうま
く維持されているものであることかわる。Next, the changes in total height of the batteries (bulging due to gas generation) when the silver oxide batteries of the above Examples and Comparative Examples were over-discharged for a predetermined number of days were investigated, and the results are shown in the following table. Met. From this, no change in the total height of the example and comparative measuring instruments was observed, indicating that the balance of the amount of electricity between the cathode and anode was well maintained.
第１図はこの発明の酸化第二銀電池の一例を示す断面図
、第２図は酸化銀電池の放電時間と電圧との関係を示す
特性図である。
１・・・陽極合剤。
特許出願人 日立マクセル株式会社
第 １ 図FIG. 1 is a sectional view showing an example of a silver oxide battery of the present invention, and FIG. 2 is a characteristic diagram showing the relationship between discharge time and voltage of the silver oxide battery. 1... Anode mixture. Patent applicant: Hitachi Maxell, Ltd. Figure 1
Claims (1)
（酸化第二銀またはこれと酸化第−銀）と共に二酸化鉛
を含む酸化第二銀電池において、上記亜鉛の含量が電気
量換算で酸化銀の含量以上であると共に酸化銀と二酸化
鉛との合計含量より少ないことを特徴とする酸化第二銀
電池fil In a ferric oxide battery in which zinc is used as a cathode active material and the anode mixture contains lead dioxide together with silver oxide (silver oxide or silver oxide and silver oxide), the content of zinc is equivalent to silver oxide in terms of electrical quantity. A ferric oxide battery characterized in that the content is greater than or equal to the content of silver oxide and lead dioxide and is less than the total content of silver oxide and lead dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973882A JPS5999678A (en) | 1982-11-30 | 1982-11-30 | Silver (ii) oxide cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973882A JPS5999678A (en) | 1982-11-30 | 1982-11-30 | Silver (ii) oxide cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5999678A true JPS5999678A (en) | 1984-06-08 |
Family
ID=16577814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20973882A Pending JPS5999678A (en) | 1982-11-30 | 1982-11-30 | Silver (ii) oxide cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5999678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59103279A (en) * | 1982-12-06 | 1984-06-14 | Sony Ebaredei Kk | Silver oxide battery |
-
1982
- 1982-11-30 JP JP20973882A patent/JPS5999678A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59103279A (en) * | 1982-12-06 | 1984-06-14 | Sony Ebaredei Kk | Silver oxide battery |
| JPH0526306B2 (en) * | 1982-12-06 | 1993-04-15 | Sony Corp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4552821A (en) | Sealed nickel-zinc battery | |
| US3655449A (en) | Dry cell comprising a separator composed of three layers | |
| US4011365A (en) | Electric accumulator | |
| USRE25608E (en) | cahan | |
| US3104990A (en) | Electrodes containing silver and cadmium compounds | |
| US3476610A (en) | Battery having two positive active materials | |
| JPS5772266A (en) | Alkaline manganese battery | |
| JPS5999678A (en) | Silver (ii) oxide cell | |
| JPH0737609A (en) | Alkaline storage battery | |
| JPS57170459A (en) | Button type alkaline battery | |
| JPH06283194A (en) | Sealed alkaline zinc storage battery | |
| JPS58131668A (en) | Rechargeable silver oxide cell | |
| JPS5999662A (en) | Production method of silver (ii) oxide cell | |
| JPS61264663A (en) | Silver oxide battery | |
| JPS6215767A (en) | Organic electrolyte battery | |
| JPS61264677A (en) | Alkaline manganese battery | |
| JPS5999680A (en) | Silver (ii) oxide cell | |
| JPS59146154A (en) | Silver(ii) oxide cell | |
| JPS5999663A (en) | Production method of silver (ii) oxide cell | |
| JPS59101777A (en) | Manufacture of alkaline zinc battery | |
| JPS59101771A (en) | Alkaline zinc battery | |
| JPS62243252A (en) | Sealed alkaline manganese secondary battery | |
| JPH01283763A (en) | Manufacture of mercury cell | |
| JPS5678073A (en) | Alkaline battery | |
| JPS5999673A (en) | Silver oxide battery |