JPS58218764A - Divalent silver oxide cell - Google Patents
Divalent silver oxide cellInfo
- Publication number
- JPS58218764A JPS58218764A JP57100151A JP10015182A JPS58218764A JP S58218764 A JPS58218764 A JP S58218764A JP 57100151 A JP57100151 A JP 57100151A JP 10015182 A JP10015182 A JP 10015182A JP S58218764 A JPS58218764 A JP S58218764A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- particle
- ago
- layer
- silver oxide
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/54—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of silver
-
- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は正極活物質として主として二価酸化銀（Ａｇｏ
）を用いる二価酸化銀電池の正極合剤の改良に関するも
のである。Detailed Description of the Invention The present invention mainly uses silver divalent oxide (Ago) as a positive electrode active material.
) is concerned with the improvement of a positive electrode mixture for a divalent silver oxide battery.
二価酸化銀を正極活物質、亜鉛を負極活物質に用いた電
池では、ＡｇＯ−＋ Ａｇ、０とＡｇ、０→Ａｇの二段
の放電を示すため電子腕時計の電源に使用する場合は問
題があった。これは、１１池電圧に水晶発信数を調整さ
せるために、使用開始後に電圧４予が変化することは時
刻に誤差を生じるおそれがあるためである。その改善と
してＡｇ０粒子の表面を光照射や加熱あるいはアルカリ
溶液浸漬等によって還元しＡｇ、ＯまたはＡｇを形成し
て、開路電圧や放電曲線を従来の一価酸化銀電池の放電
曲線のように平坦性にする構成が行なわれていた。しか
しながら、従来実施されていた光照射や加熱やアルカリ
浸漬によるＡｇ、０層またはＡｇ層の形成は、その層の
厚さをコントロールするのが技術的に非常に困難であっ
た。A battery that uses silver divalent oxide as the positive electrode active material and zinc as the negative electrode active material exhibits two stages of discharge: AgO-+ Ag, 0 and Ag, and 0 → Ag, which poses a problem when used as a power source for electronic watches. was there. This is because the number of crystal oscillations is adjusted to the 11-volt voltage, and if the voltage 4-voltage changes after the start of use, there is a risk of an error in the time. To improve this, the surface of Ag0 particles is reduced by light irradiation, heating, or immersion in an alkaline solution to form Ag, O, or Ag, and the open circuit voltage and discharge curve are flattened like those of conventional monovalent silver oxide batteries. It was constructed to make it more sexual. However, in the conventional formation of Ag, 0 layer or Ag layer by light irradiation, heating or alkali immersion, it is technically very difficult to control the thickness of the layer.
また光照射についてはＡｇ０粒子の全表面を照射するに
は時間も手間もかかり、また加熱法については温度と時
間の制姉がむずかしくアルカリ浸漬にいたってはその後
のＡｇ０粒子の洗浄が必要である等作業性を複雑なもの
としていた。In addition, when it comes to light irradiation, it takes time and effort to irradiate the entire surface of Ag0 particles, and when it comes to heating, it is difficult to control the temperature and time, and when it comes to alkali immersion, it is necessary to wash the Ag0 particles afterward. This made workability complicated.
本発明は、従来電池の欠点を除去するもので、正極活物
質であるＡｇＯの粒子表面に噴霧コーティングによって
Ａｇ層を形成した粒子を形成し、加圧成形した正極合剤
を用いた二価酸化銀電池に係り、コノｗｌ池１ｄ Ａｇ
ｏ ＋ Ａｇ−Ａｇ−４Ａ ノ反応ヲ行なわしめて電池
特性を向上するとともに放電曲線を平坦（二するもので
、Ａｇ層は噴霧によって形成しているので被膜の厚さは
数ミクロンに形成でき、かつきわめて均一薄層で強固に
付着形成ができる ゛ものである。The present invention eliminates the drawbacks of conventional batteries, and involves forming particles with an Ag layer formed by spray coating on the particle surface of AgO, which is a positive electrode active material, and using a pressure-molded positive electrode mixture for divalent oxidation. Concerning silver batteries, Konowlike 1d Ag
o + Ag-Ag-4A reaction to improve battery characteristics and flatten the discharge curve.Since the Ag layer is formed by spraying, the thickness of the coating can be several microns, and It is an extremely thin and uniform layer that can form a strong adhesion.
以下本発明をその実施例により説明する。粒状コーティ
ングｌ’ ３．５ ＫＦにポリスチレン１７１１を１．
１．１−１リクロロエタン２．８１に溶かしたものを加
え液状にしスプレーガンによってコーティングを２０分
間行なうことによってＡｇＯ粒子の表面に０．２〜０．
４μｍのＡｇ被膜が形成できる。これを７０℃で１２時
間乾燥し正極活物質として加圧成形した正極合剤を用い
外径６．８１＋１ｉｄＪさ２．６５１ＪＩの酸化銀４＠
池を試作した。この試作電池（Ａ）をＩＭΩの定抵抗を
通じて放電した結果を示す。結果を図面第１図に示した
。この本発明による試作電池（Ａ）と同様な試験を一価
酸化銅を土とした正極合剤を用いた従来１４ＬｌｔｌＪ
（Ｂ）と二価酸化銀を主とした正極合剤を用いた従来
電池ＧＣ）とで行った結果をｗ１１図に示した。The present invention will be explained below with reference to Examples. Granular coating l' 3.5 KF with polystyrene 1711 1.
1.1-1 was dissolved in 2.81 g of dichloroethane, liquefied, and coated with a spray gun for 20 minutes to coat the surface of the AgO particles with 0.2-0.
A 4 μm Ag film can be formed. This was dried at 70°C for 12 hours, and a positive electrode mixture was pressure-molded as a positive electrode active material. Silver oxide 4 with an outer diameter of 6.81 + 1idJ and 2.651JI
I made a prototype of a pond. The results of discharging this prototype battery (A) through a constant resistance of IMΩ are shown. The results are shown in Figure 1 of the drawing. A test similar to that of this prototype battery (A) according to the present invention was carried out using a conventional 14LltlJ using a positive electrode mixture made of monovalent copper oxide.
Figure w11 shows the results obtained with (B) and a conventional battery GC using a positive electrode mixture mainly composed of divalent silver oxide.
第１図によって明らかなように本発明電池（Ａ）が従来
電池（Ｂ）および（Ｃ）に比較して放電曲線が平坦にな
るとともに放電接続時間が長く良好な特性を示した。As is clear from FIG. 1, the battery (A) of the present invention had a flatter discharge curve and a longer discharge connection time than the conventional batteries (B) and (C), and exhibited good characteristics.
なお、上記本発明電池（Ａ）はＡｇＯ粒子の表面全面に
Ａｇ被膜を形成した正極活物質を用いたが、Ａｇ被膜が
全面でなく大部分を被覆されていれば前記同様な効果が
発揮できる。Although the above-mentioned battery of the present invention (A) used a positive electrode active material in which an Ag film was formed on the entire surface of AgO particles, the same effect as described above can be achieved if the Ag film covers most of the surface instead of the entire surface. .
第２図は、本発明の一実施例を示す二価酸化銀電池の断
面図で、図において１は正極ケース２内に充填された正
極合剤で表面にＡｇ被膜を形成したＡｇＯ粒子を主とし
て黒鉛、樹脂バインダーを添加して加圧成形したもので
ある。３はセパレーター、４は亜鉛負極、５は封口板で
周縁に絶縁ガスケット６を嵌着し、正極ケース２の口端
７を内方に折曲加圧して密封口電池を形成している。FIG. 2 is a cross-sectional view of a silver divalent oxide battery showing an embodiment of the present invention. In the figure, 1 is a positive electrode mixture filled in a positive electrode case 2, which mainly consists of AgO particles with an Ag coating formed on the surface. Pressure molded with graphite and resin binder added. 3 is a separator, 4 is a zinc negative electrode, 5 is a sealing plate with an insulating gasket 6 fitted around its periphery, and the mouth end 7 of the positive electrode case 2 is bent inward and pressurized to form a sealed battery.
なお、Ａｇ被膜はＡｇ溶解液をスプレーガンにて噴霧す
ることで形成されるので、ＡｇＯ粒子の表面にきわめて
薄層の均一膜が形成でき、特性のパ ５ラツキを減少し
、また作業性もきわめて容易であ ”［る０
また、Ａｇ溶解液には黒鉛等の電導剤を添加して被膜を
形成することも可能である。Furthermore, since the Ag film is formed by spraying an Ag solution with a spray gun, an extremely thin and uniform film can be formed on the surface of the AgO particles, reducing variations in properties and improving workability. It is also possible to form a film by adding a conductive agent such as graphite to the Ag solution.
以上のように、本発明電池は放電曲線を平坦にす・ると
ともに電池放電接続時１間を長くし、かつ製法も簡易で
ある等その効果はきわめて大きいので、電子腕時計をは
じめ、カメラや補聴器、電子計算機など小型電子機器の
電源として優れた特性を発揮することができる。As described above, the battery of the present invention flattens the discharge curve, lengthens the battery discharge connection time for 1 hour, and is simple to manufacture. It can exhibit excellent characteristics as a power source for small electronic devices such as computers.
第１図は本発明の一実施例による二価酸化銀電池（Ａ）
と従来電池（Ｂ） 、 （Ｃ）との特性比較を示した放
電曲線図で、第２図は同上本発明電池（Ａ）の断面図で
ある。
１・・・正極合剤 ２・・・正極ケース３・・
・セパレーター ４・・・亜鉛負極５・・・封口板
特許出願人の名称
東芝電池株式会社
第 １ 図
０ ２００ ４ｏｏ ６００
ｖ００放電隣１ｔＩ（ｔ３）
竿２図
２ １３Figure 1 shows a silver divalent oxide battery (A) according to an embodiment of the present invention.
FIG. 2 is a discharge curve diagram showing a comparison of characteristics between the conventional batteries (B) and (C), and FIG. 2 is a cross-sectional view of the same invention battery (A). 1... Positive electrode mixture 2... Positive electrode case 3...
・Separator 4...Zinc negative electrode 5...Sealing plate Name of patent applicant Toshiba Battery Corporation No. 1 Figure 0 200 4oo 600
v00 next to discharge 1tI (t3) Rod 2 Figure 2 13
Claims (1)
加圧成形した正極合剤を用いたことを特徴とする二価酸
化銀電池。A silver divalent oxide battery characterized by using a positive electrode mixture formed by pressure molding Ag0 particles whose surfaces are spray-coated with an Ag solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57100151A JPS58218764A (en) | 1982-06-11 | 1982-06-11 | Divalent silver oxide cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57100151A JPS58218764A (en) | 1982-06-11 | 1982-06-11 | Divalent silver oxide cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58218764A true JPS58218764A (en) | 1983-12-20 |
Family
ID=14266314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57100151A Pending JPS58218764A (en) | 1982-06-11 | 1982-06-11 | Divalent silver oxide cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58218764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7648799B2 (en) | 2007-03-30 | 2010-01-19 | Eveready Battery Co., Inc. | Multi-layer positive electrode structures having a silver-containing layer for miniature cells |
-
1982
- 1982-06-11 JP JP57100151A patent/JPS58218764A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7648799B2 (en) | 2007-03-30 | 2010-01-19 | Eveready Battery Co., Inc. | Multi-layer positive electrode structures having a silver-containing layer for miniature cells |
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