JPS648896B2 - - Google Patents
Info
- Publication number
- JPS648896B2 JPS648896B2 JP57061468A JP6146882A JPS648896B2 JP S648896 B2 JPS648896 B2 JP S648896B2 JP 57061468 A JP57061468 A JP 57061468A JP 6146882 A JP6146882 A JP 6146882A JP S648896 B2 JPS648896 B2 JP S648896B2
- Authority
- JP
- Japan
- Prior art keywords
- anode
- pedestal
- inner diameter
- sealing ring
- cathode
- 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.)
- Expired
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
-
- 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
- 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)
- Battery Electrode And Active Subsutance (AREA)
Description
本発明はアルカリ電池、とくにボタン型、扁平
型などの陽極台座を有した電池において、陽極台
座を改良することによりアルカリ電池の保存特性
を向上させたものである。
最近のアルカリ電池は放電寿命が長いばかりで
なく、耐漏液性、保存性も強く要求されるように
なつてきている。特に保存性の向上に対しては従
来より、下記のように種々の検討が加えられ、大
幅な改善がなされてはきたが、未だ十分とはなつ
ていない状況である。主な改善検討項目を列記す
ると、
セパレータ、含浸材の材質検討
陽極合剤の配合比、原材料の純度、成型密度
陽極合剤の配合比、原材料の純度
電解液の処方、原材料の純度
製造組立工程中における例えば、電解液の吸
収時間、CO2ガス吸収の影響等種々の条件
陽極台座、陰極封口板、陽極ケース、封口リ
ングの材質
以上、種々の原材料、部品材料等の材質、純度
が検討され、現在に至つている。
本発明は陽極台座を改良してアルカリ電池の保
存性能劣下を少くし、保存特性を向上せしめるこ
とを目的とする。
本発明は従来検討されてきた諸結果をもとに、
更に全く別の角度より検討を加え、封口リングを
支持する陽極台座の材質ならびに寸法を規定する
ことにより、保存特性が著しく向上、安定化する
ことを見出したものである。
以下、第１図に示す構成の酸化銀電池SR44（直
径11.6mm、高さ5.4mm）を例にとり、本発明を説
明する。
図中は断面逆Ｌ字状で厚さ0.1mmのステンレス
鋼からなる陽極台座であり、これは酸化銀Ag2O
を主体とした陽極合剤２の上面角部に密着し、合
剤２とともに陽極ケース３内に装填され、その外
周面はケース３と密着している。この台座１は絶
縁性の断面略Ｌ字状の封口リング４を支持するも
のである。５は亜鉛粉末を主体としこれに少量の
増粘剤とアルカリ電解液を加えたゲル状陰極合剤
であり、陰極封口板６内に収容されている。７は
セパレータ、８はアルカリ電解液を含浸保持した
含浸材を示す。また第２図は同電池の要部拡大断
面図、であり、本発明は陽極台座１の水平部の内
径ａと封口リング４の水平先端部の内径ｂ及び陰
極封口板６のＵ字状折り返し基点部の内径ｃとの
関係を規定したものである。
各種の寸法関係と電池の保存特性の結果を表−
１に示す。
The present invention is an alkaline battery, particularly a battery having a button-type or flat-type anode pedestal, in which the storage characteristics of the alkaline battery are improved by improving the anode pedestal. Recent alkaline batteries are required not only to have a long discharge life, but also to have leakage resistance and storage stability. In particular, various studies have been made to improve storage stability, as described below, and although significant improvements have been made, the situation is still not satisfactory. The main items to be considered for improvement are as follows: Consideration of materials for separators and impregnating materials Blend ratio of anode mixture, purity of raw materials, molding density Blend ratio of anode mix, purity of raw materials Formula of electrolyte, purity of raw materials Manufacturing assembly process For example, various conditions such as electrolyte absorption time, influence of CO 2 gas absorption, materials of anode pedestal, cathode sealing plate, anode case, sealing ring, etc. The materials and purity of various raw materials and component materials have been examined. , which continues to this day. The object of the present invention is to improve the anode pedestal to reduce the deterioration in the storage performance of alkaline batteries and to improve the storage characteristics. The present invention is based on the results of conventional studies,
Furthermore, we investigated from a completely different angle and found that by specifying the material and dimensions of the anode pedestal that supports the sealing ring, the storage characteristics can be significantly improved and stabilized. The present invention will be explained below by taking as an example a silver oxide battery SR44 (diameter 11.6 mm, height 5.4 mm) having the configuration shown in FIG. The figure shows an anode pedestal made of stainless steel with an inverted L-shaped cross section and a thickness of 0.1 mm, which is silver oxide Ag 2 O.
The anode mixture 2 is placed in close contact with the upper corner of the anode mixture 2, which is mainly composed of the anode mixture 2, and is loaded into the anode case 3 together with the mixture 2, and its outer peripheral surface is in close contact with the case 3. This pedestal 1 supports an insulating sealing ring 4 having a substantially L-shaped cross section. Reference numeral 5 denotes a gel cathode mixture consisting mainly of zinc powder with a small amount of thickener and alkaline electrolyte added, and is housed in the cathode sealing plate 6 . 7 is a separator, and 8 is an impregnated material impregnated with an alkaline electrolyte. FIG. 2 is an enlarged sectional view of the main parts of the battery, and the present invention is characterized by the inner diameter a of the horizontal part of the anode pedestal 1, the inner diameter b of the horizontal tip of the sealing ring 4, and the U-shaped folded back of the cathode sealing plate 6. This defines the relationship between the base point and the inner diameter c. Table showing the results of various dimensional relationships and battery storage characteristics.
Shown in 1.
【表】
また上記同様の構成で酸化銀電池SR41（直径
7.9mm、高さ3.6mm）を例にとつた結果を表−２に
示す。[Table] Silver oxide battery SR41 (diameter
Table 2 shows the results using an example of 7.9 mm and height 3.6 mm.
【表】
上記表−１、表−２から明らかなように、ａ＜
ｂの場合、その差が大きくなる程、電圧不足の発
生率は急激に増大する。この理由としては陽極台
座の水平部内周がセパレータを介して封口リング
よりも内方へ張り出していると、陽極台座と陽極
合剤との距離が短かくなり、かつアルカリ電解液
との接触面積も大きくなるため、陽極台座がステ
ンレス鋼で構成されている場合、そのステンレス
鋼がアルカリ電解液に徐々に腐食され、成分の鉄
イオンが溶解してセパレータを貫通し、陰極の汞
化亜鉛と反応して水銀と鉄との化合物が生成し、
ついには短絡現象を引き起こし、電圧不良劣下を
きたしている。それ故、アルカリ溶液に反応しな
い、合成樹脂等で作られた陽極台座では、上記範
囲であるａ＜ｂの場合でも電圧不良は発生しな
い。しかし合成樹脂のような物質で上記範囲の陽
極台座を構成した場合には、陽、陰極の接触面積
が小さくなり、電流の取り出しが少くなるととも
に、強放電使用には適さない等の欠点を生じる。
その他陽極台座の強度、作業性を考慮した場合、
ステンレス鋼板が最適材料である。又逆にａ＞ｂ
であれば上記の様な反応は著しく減少し、電圧不
良はほとんど発生しなくなる。ところがａ＞ｂで
しかもａ＞ｃの条件になると、封口時に封口板の
Ｕ字状折り返し基点部の最下点Ｂに加わつた力は
陽極台座がその真下の位置に存在しないため、陽
極側の台座機能が弱くて変形し、封口リングと陽
極合剤との間でセパレータをはさみこむ力が減少
してくる。そのため60℃等の高温保存時に、セパ
レータの収縮が起こり、小さな径の円となつて
陽、陰極を隔離する機能が消滅し、ついには短絡
して電圧不良を発生する。又封口リングの台座機
能が弱くなるため、封口リングのAB部での圧着
が弱くなり、漏液性能も悪くなる。
この陽極台座を構成するステンレス鋼板の厚み
は0.05〜0.2ｍ／ｍが適している。すなわち、ス
テンレス鋼板といえどもその厚みが0.05ｍ／ｍよ
り薄くなると強度的に弱くなり、封口時の圧力に
耐えることが出来ず、変形を起こしてａ＞ｃの時
のような現象を起こし、電圧不良、漏液不良を発
生する。また逆に0.2ｍ／ｍよりも厚くした場合、
ボタン型、扁平型電池においてその体積のため、
陽極活性物質の充填しうる量がその分だけ減少
し、容量劣下を招く。
以上より陽極台座はステンレス鋼板製とし、そ
の内径はｂ＜ａ＜ｃの範囲に限定して使用するこ
とにより、保存劣下の少ない保存特性の優れたア
ルカリ電池を供給することができるものである。[Table] As is clear from Tables 1 and 2 above, a<
In the case of b, as the difference becomes larger, the occurrence rate of voltage shortage increases rapidly. The reason for this is that if the inner periphery of the horizontal part of the anode pedestal protrudes inward beyond the sealing ring via the separator, the distance between the anode pedestal and the anode mixture becomes shorter, and the contact area with the alkaline electrolyte also decreases. If the anode pedestal is made of stainless steel, the stainless steel will be gradually corroded by the alkaline electrolyte, and the iron ions will dissolve, penetrate the separator, and react with the zinc oxide in the cathode. A compound of mercury and iron is formed,
Eventually, a short circuit phenomenon occurs, resulting in voltage failure and deterioration. Therefore, with an anode pedestal made of synthetic resin or the like that does not react with alkaline solutions, voltage failure will not occur even in the above range of a<b. However, if the anode pedestal is made of a material such as synthetic resin within the above range, the contact area between the anode and cathode will be small, resulting in less current extraction and disadvantages such as being unsuitable for strong discharge use. .
Considering the strength and workability of the anode pedestal,
Stainless steel plate is the best material. And conversely, a>b
If so, the above-mentioned reactions will be significantly reduced, and voltage failures will almost never occur. However, when the conditions a>b and a>c are satisfied, the force applied to the lowest point B of the U-shaped folding base of the sealing plate during sealing is applied to the anode side because the anode pedestal is not located directly below it. The pedestal function is weak and deforms, and the force to sandwich the separator between the sealing ring and the anode mixture decreases. Therefore, when stored at high temperatures such as 60°C, the separator shrinks, forming a circle with a small diameter, losing its ability to isolate the anode and cathode, and eventually causing a short circuit and a voltage failure. Furthermore, since the pedestal function of the sealing ring is weakened, the pressure bonding at the AB portion of the sealing ring is weakened, and the leakage performance is also deteriorated. The thickness of the stainless steel plate constituting this anode pedestal is suitably 0.05 to 0.2 m/m. In other words, even if it is a stainless steel plate, if its thickness becomes thinner than 0.05 m/m, its strength will become weaker, and it will not be able to withstand the pressure during sealing, causing deformation and causing the phenomenon like when a>c. Voltage failure and liquid leakage failure occur. Conversely, if it is thicker than 0.2m/m,
Due to the volume of button-type and flat-type batteries,
The amount of anode active material that can be filled is reduced by that amount, resulting in a decrease in capacity. From the above, by making the anode pedestal made of stainless steel plate and limiting its inner diameter to the range of b<a<c, it is possible to supply an alkaline battery with excellent storage characteristics with little storage deterioration. .
第１図はボタン型アルカリ電池の半截側面図、
第２図は同電池の要部拡大断面図である。
１……陽極台座、２……陽極台剤、３……陽極
ケース、４……封口リング、５……陰極合剤、６
……陰極封口板、ａ……陽極台座の内径、ｂ……
封口リングの内径、ｃ……陰極封口板のＵ字状折
り返し基点部の内径。
Figure 1 is a half-cut side view of a button-type alkaline battery.
FIG. 2 is an enlarged sectional view of the main parts of the battery. 1... Anode pedestal, 2... Anode base material, 3... Anode case, 4... Sealing ring, 5... Cathode mixture, 6
... Cathode sealing plate, a ... Inner diameter of anode pedestal, b ...
Inner diameter of the sealing ring, c: Inner diameter of the U-shaped folding base of the cathode sealing plate.
Claims (1)
もに陽極ケース内に装填され、かつ断面略Ｌ字状
の封口リングを支持する断面逆Ｌ字状のステンレ
ス鋼板製陽極台座を有し、この台座はその水平部
の内径ａが前記断面Ｌ字状の封口リングの水平部
先端の内径ｂよりは大きく、陰極封口板のＵ字状
折り返し基点部の内径ｃよりは小さい範囲で形成
されているアルカリ電池。1. It has an anode pedestal made of a stainless steel plate having an inverted L-shaped cross section, which is loaded into the anode case together with the anode mixture in close contact with the upper corner of the anode mixture, and which supports a sealing ring having a substantially L-shaped cross section; This pedestal is formed such that the inner diameter a of its horizontal portion is larger than the inner diameter b of the horizontal portion tip of the sealing ring having an L-shaped cross section, but smaller than the inner diameter c of the U-shaped folded base portion of the cathode sealing plate. Alkaline batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061468A JPS58178955A (en) | 1982-04-12 | 1982-04-12 | Alkaline cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061468A JPS58178955A (en) | 1982-04-12 | 1982-04-12 | Alkaline cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58178955A JPS58178955A (en) | 1983-10-20 |
| JPS648896B2 true JPS648896B2 (en) | 1989-02-15 |
Family
ID=13171904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57061468A Granted JPS58178955A (en) | 1982-04-12 | 1982-04-12 | Alkaline cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58178955A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021009815A1 (en) | 2019-07-12 | 2021-01-21 | 株式会社手工仁久 | Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste |
| WO2021125009A1 (en) | 2019-12-16 | 2021-06-24 | 株式会社手工仁久 | Method for producing synthetic resin molded article in which marine floating plastic waste is used |
| WO2021125016A1 (en) | 2019-12-16 | 2021-06-24 | 株式会社手工仁久 | Synthetic resin molded article using plastic waste |
-
1982
- 1982-04-12 JP JP57061468A patent/JPS58178955A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021009815A1 (en) | 2019-07-12 | 2021-01-21 | 株式会社手工仁久 | Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste |
| WO2021125009A1 (en) | 2019-12-16 | 2021-06-24 | 株式会社手工仁久 | Method for producing synthetic resin molded article in which marine floating plastic waste is used |
| WO2021125016A1 (en) | 2019-12-16 | 2021-06-24 | 株式会社手工仁久 | Synthetic resin molded article using plastic waste |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58178955A (en) | 1983-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3457117A (en) | Leakproof electrochemical cell | |
| US3891462A (en) | Galvanic cell structure | |
| US3056849A (en) | Primary cell with slurry electrolyteanode body | |
| KR20080074199A (en) | Rechargeable alkaline manganese battery with reduced capacity and improved cycle life | |
| US3484295A (en) | Battery having a positive electrode in which the principal active material is isolated from the electrolyte by a secondary active material | |
| US3418172A (en) | Method of manufacturing a small, button-type alkaline cell having a loose, powdered zinc anode | |
| US3476610A (en) | Battery having two positive active materials | |
| EP1142043B1 (en) | Electrochemical cell closure | |
| JPS648896B2 (en) | ||
| JP3598562B2 (en) | Button type alkaline battery | |
| US4387143A (en) | Silver oxide primary cell | |
| US4041219A (en) | Silver peroxide-zinc battery | |
| US4021598A (en) | Alkaline dry cell | |
| JPS60241641A (en) | flat battery | |
| US20060234122A1 (en) | Button-type alkaline battery | |
| JPH0631646Y2 (en) | Flat type battery | |
| JP2001068121A (en) | Cylindrical alkaline battery | |
| JPH0785422B2 (en) | Button type air battery | |
| JPS60101858A (en) | Button-shaped alkaline cell | |
| JPS5852617Y2 (en) | silver oxide battery | |
| US20090291362A1 (en) | Flat-type alkaline primary battery | |
| JPS5852616Y2 (en) | battery | |
| JP2000113895A (en) | Cylindrical alkaline battery | |
| WO2024181089A1 (en) | Alkaline dry battery | |
| JPH0731503Y2 (en) | Organic electrolyte battery |