JPS6131940B2 - - Google Patents
Info
- Publication number
- JPS6131940B2 JPS6131940B2 JP53110045A JP11004578A JPS6131940B2 JP S6131940 B2 JPS6131940 B2 JP S6131940B2 JP 53110045 A JP53110045 A JP 53110045A JP 11004578 A JP11004578 A JP 11004578A JP S6131940 B2 JPS6131940 B2 JP S6131940B2
- Authority
- JP
- Japan
- Prior art keywords
- anode
- gasket
- cathode
- terminal plate
- anode mixture
- 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
- 239000000203 mixture Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 16
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000006183 anode active material Substances 0.000 claims description 5
- 229910001923 silver oxide Inorganic materials 0.000 claims description 5
- 239000010406 cathode material Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- 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
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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)
- Cell Separators (AREA)
- Primary Cells (AREA)
Description
【発明の詳細な説明】
この発明は厚さ１mm程度の薄型の酸化銀電池、
酸化水銀電池などのアルカリ電池に関し、その酸
化銀などの陽極活物質を主成分とする陽極合剤と
陰極剤との間の電気的な短絡を有効に防止して、
電池の性能を高く維持することを目的とする。[Detailed description of the invention] This invention provides a thin silver oxide battery with a thickness of about 1 mm,
For alkaline batteries such as mercury oxide batteries, it is possible to effectively prevent electrical short circuits between the anode mixture and the cathode material, which are mainly composed of anode active materials such as silver oxide.
The purpose is to maintain high battery performance.
近年、用途上の要請から、厚さ１mm程度の薄型
の酸化銀電池が実用化されつつある。ところが、
このような薄い電池では、陽極缶を封口するガス
ケツトを、通常のボタン型電池におけるように陽
極合剤上に載置されたセパレータの周縁部に圧接
すると、その強い圧接力で薄い陽極合剤が崩壊し
てしまうので、どうしても、第２図に示すよう
に、ガスケツト２１の内周側に陽極合剤２２を位
置させ、ガスケツト２１を陽極缶２３の底壁２４
に直接圧接する構造となる。そのため、ボタン型
電池においては、陽極合剤と陰極剤との間のシー
ルはセパレータのほかにガスケツトによつてもな
されていたのに、上記薄型の電池においては、ガ
スケツト２１は上記シールの役割を果たさず、セ
パレータ２５のみによつて上記シールがなされる
ので、このシールがどうしても不十分になり、た
とえば陽極合剤２２の一部が封口時の押圧力や使
用中における外部からの衝撃力などを受けて崩壊
した場合に、その一部が矢印２６で示すように、
セパレータ２５の周縁と陰極端子板２７との間の
わずかな隙間を通つて陰極剤２８側へ漏出し、短
絡を起こして電池の性能を低下させるという欠点
がある。 In recent years, thin silver oxide batteries with a thickness of about 1 mm are being put into practical use due to application requirements. However,
In such a thin battery, when the gasket that seals the anode can is pressed against the periphery of the separator placed on the anode mixture as in a normal button battery, the strong pressure will cause the thin anode mixture to To avoid this, it is necessary to position the anode mixture 22 on the inner peripheral side of the gasket 21 and attach the gasket 21 to the bottom wall 24 of the anode can 23, as shown in FIG.
The structure is such that it is in direct pressure contact with the Therefore, in button-type batteries, the seal between the anode mixture and the cathode material was achieved by a gasket in addition to the separator, but in the above-mentioned thin battery, the gasket 21 plays the role of the above-mentioned seal. However, since the above-mentioned sealing is performed only by the separator 25, this sealing is inevitably insufficient, and, for example, a part of the anode mixture 22 resists the pressing force during sealing and external impact force during use. When it collapses due to the impact, a part of it collapses as shown by arrow 26.
This has the disadvantage that it leaks to the cathode agent 28 side through a small gap between the periphery of the separator 25 and the cathode terminal plate 27, causing a short circuit and deteriorating the performance of the battery.
一方、上記のようなセパレータ２５の周縁部と
陰極端子板２７との間の隙間から陽極合剤２２が
陰極剤２８側へ漏出するのを防止すべく、セパレ
ータ２５の外径をガスケツト２１の内径よりも大
きくしてその周縁部をガスケツト２１と陰極端子
板２７との間で挾圧するようにした場合には、こ
の挾圧部付近は銀などの陽極活物質が析出し易い
電解液の滞留部となり易く、しかもセパレータ２
５を構成するセロフアンのような半透膜はこの析
出してきた活物質によつて劣化され易いため、本
来の半透膜としての機能が損なわれることになり
陰極両極間の内部短絡を防止して電池性能の維持
を図ることが困難となる。 On the other hand, in order to prevent the anode mixture 22 from leaking to the cathode agent 28 side from the gap between the peripheral edge of the separator 25 and the cathode terminal plate 27 as described above, the outer diameter of the separator 25 is set to the inner diameter of the gasket 21. If the circumferential edge is made larger and the peripheral edge is clamped between the gasket 21 and the cathode terminal plate 27, the vicinity of this clamping pressure becomes a retention area for electrolyte where anode active materials such as silver tend to precipitate. easily, and separator 2
Since the semipermeable membrane such as cellophane that constitutes 5 is easily deteriorated by the precipitated active material, its original function as a semipermeable membrane is impaired, and an internal short circuit between the cathode and the cathode is prevented. It becomes difficult to maintain battery performance.
この発明は上記欠点を解消したもので、以下、
その実施例を図面に基づいて説明する。 This invention eliminates the above-mentioned drawbacks, and the following:
An embodiment thereof will be described based on the drawings.
第１図において、酸化銀などの陽極活物質を主
成分とする陽極合剤１が陽極缶２の缶底に挿入さ
れ、その上に微孔性フイルム、半透膜および吸液
紙からなるセパレータ３が位置し、さらに亜鉛粉
末を活物質とする陰極剤４が内填された陰極端子
板５が環状のガスケツト６を介して陽極缶２に嵌
合され、陽極缶２の開口部７が内方へ折曲されて
封口されている。 In FIG. 1, an anode mixture 1 mainly composed of an anode active material such as silver oxide is inserted into the bottom of an anode can 2, and a separator consisting of a microporous film, a semipermeable membrane, and absorbent paper is placed on top of it. A cathode terminal plate 5 filled with a cathode agent 4 containing zinc powder as an active material is fitted into the anode can 2 via an annular gasket 6, and the opening 7 of the anode can 2 is inserted into the anode can 2. It was bent towards the side and sealed.
上記環状のガスケツト６は陽極合剤１の外径よ
り大きい内径を有してその内周側に陽極合剤１を
位置させており、したがつて、上記陽極缶２の開
口部７の折曲により、陰極端子板５の周縁部５ａ
と、陽極缶２の側壁９および底壁１０とに直接圧
接される。 The annular gasket 6 has an inner diameter larger than the outer diameter of the anode mixture 1, and the anode mixture 1 is located on the inner peripheral side thereof, so that the opening 7 of the anode can 2 is bent. Therefore, the peripheral edge 5a of the cathode terminal plate 5
and are directly pressed against the side wall 9 and bottom wall 10 of the anode can 2.
１１は、上記陽極合剤１と陰極剤４との間に配
設された電解液透過能を有しない環状のシール部
材で、テーパ筒状の周壁部１１ａと水平は内縁部
１１ｂと水平な外縁部１１ｃとからなり、上記内
縁部１１ｂは陽極合剤１と陰極剤４との間で挾持
され、上記周壁部１１ａは陰極端子板５の内面に
沿つて屈曲されたテーパ筒状とされており、かつ
この周壁部１１ａを介して上記内縁部１１ｂと連
結する上記外縁部１１ｃはガスケツト６と陰極端
子板５との間で挾圧されている。上記シール部材
１１としては、ポリ塩化ビニールやポリスチロー
ルのような電解液透過能を有しない合成樹脂をあ
らかじめ図示のような形状に成形したものが推奨
される。 Reference numeral 11 denotes an annular sealing member having no electrolyte permeability, which is disposed between the anode mixture 1 and the cathode material 4, and has a tapered cylindrical peripheral wall 11a and a horizontal inner edge 11b, and a horizontal outer edge. The inner edge portion 11b is held between the anode mixture 1 and the cathode agent 4, and the peripheral wall portion 11a has a tapered cylindrical shape bent along the inner surface of the cathode terminal plate 5. , and the outer edge portion 11c, which is connected to the inner edge portion 11b via the peripheral wall portion 11a, is held between the gasket 6 and the cathode terminal plate 5. As the sealing member 11, it is recommended that a synthetic resin such as polyvinyl chloride or polystyrene, which does not have electrolyte permeability, be molded in advance into the shape shown in the figure.
なお、上記実施例では、微孔性フイルム、半透
膜および吸液紙をこの順序で重ね合わせたセパレ
ータ３の上にシール部材１１の内縁部１１ｂが位
置する構成としたが、セパレータ３のうち吸液紙
のみをシール部材１１の上に位置させる構成とし
てもよい。 In the above embodiment, the inner edge 11b of the sealing member 11 is located on the separator 3 in which the microporous film, the semipermeable membrane, and the absorbent paper are stacked in this order. A configuration may be adopted in which only the liquid-absorbing paper is placed on the sealing member 11.
上記構成から明らかなように、環状のシール部
材１１は、その内縁部１１ｂが陽極合剤１と陰極
剤４との間で挾持され、かつ、その外縁部１１ｃ
がガスケツト６と陰極端子板５との間で挾圧され
ているから、電池内で確実に位置決めおよび支持
がなされるとともに、陽極合剤１と陰極剤４との
間をシールする。このとき、シール部材１１にお
ける周壁部１１ａは陰極端子板５の内面に沿つて
テーパ筒状に屈曲されており、かつこの周壁部１
１ａを介して水平な内縁部１１ｂと連結する水平
な外縁部１１ｃも上記同様に陰極端子板５の内面
に沿つているため、上記シール部材１１の周壁部
１１ａから外縁部１１ｃにわたる広い面が封口時
の押圧により端子板５に強く圧接させることとな
るから、シール部材１１の支持を強固なものとす
ることができる。また、上記押圧によつて水平な
外縁部１１ｃをガスケツト６と端子板５との間で
挾圧し、これにより陰陽両極間のシールを確実に
行うようにしており、つまり陰陽両極間のシール
がガスケツト６によつてもなされるようにしてい
るから、従来この種薄型電池におけるセパレータ
のみによるシールと較べてそのシール効果を絶大
なものとすることができる。したがつて、たとえ
陽極合剤１の一部が崩壊しても、この一部が陰極
剤４側へ漏出するのが有効に防止され、これによ
り、陽極合剤１と陰極剤４との間の短絡が未然に
防止されて、電池の性能が高く維持される。しか
も、シール部材１１は、電解液透過能を有しない
ものであるため、その外縁部１１ｃのような挾圧
部付近が電解液の滞留部となるおそれがなく、ま
た仮にこの部分に電解液が滞留して銀などの陽極
活物質が析出してきたとしても、この析出してき
た活物質によつてセロフアンの如く劣化されるこ
とがないため、上記陰陽両極間の短絡を確実に防
止することが可能となる。 As is clear from the above configuration, the annular sealing member 11 has an inner edge 11b sandwiched between the anode mixture 1 and the cathode 4, and an outer edge 11c.
Since it is pressed between the gasket 6 and the cathode terminal plate 5, it is reliably positioned and supported within the battery, and also seals between the anode mixture 1 and the cathode mixture 4. At this time, the peripheral wall portion 11a of the sealing member 11 is bent into a tapered cylindrical shape along the inner surface of the cathode terminal plate 5, and this peripheral wall portion 1
Since the horizontal outer edge 11c, which is connected to the horizontal inner edge 11b via 1a, also runs along the inner surface of the cathode terminal plate 5 in the same manner as described above, a wide surface extending from the peripheral wall 11a to the outer edge 11c of the sealing member 11 is sealed. Since the pressure at the time causes the terminal plate 5 to come into strong pressure contact with the terminal plate 5, the support of the seal member 11 can be made strong. Further, the horizontal outer edge portion 11c is clamped between the gasket 6 and the terminal plate 5 by the above-mentioned pressing, thereby ensuring a seal between the negative and positive electrodes. 6, the sealing effect can be greatly enhanced compared to the conventional sealing using only a separator in this type of thin battery. Therefore, even if a part of the anode mixture 1 disintegrates, this part is effectively prevented from leaking to the cathode agent 4 side, thereby preventing the gap between the anode mixture 1 and the cathode agent 4. This prevents short circuits and maintains high battery performance. Moreover, since the sealing member 11 does not have electrolyte permeability, there is no risk that the vicinity of the clamping pressure part, such as the outer edge 11c, becomes an electrolyte retention area, and even if the electrolyte were to accumulate in this area, Even if an anode active material such as silver is deposited due to stagnation, the precipitated active material will not deteriorate like cellophane, making it possible to reliably prevent short circuits between the negative and anode electrodes. becomes.
また、シール部材１１は、その外縁部１１ｃが
封口圧によりガスケツト６と陰極端子板５との間
で挾圧されているから、その内縁部１１ｂで陽極
合剤１を陽極缶２の底壁１０へ押圧するので、陽
極合剤１と陽極缶２の底壁１０との接触が良好に
なつて、電池の放電特性が向上する。 Furthermore, since the outer edge 11c of the seal member 11 is clamped between the gasket 6 and the cathode terminal plate 5 due to the sealing pressure, the anode mixture 1 is transferred to the bottom wall 10 of the anode can 2 at the inner edge 11b. Since the anode mixture 1 is pressed against the bottom wall 10 of the anode can 2, the contact between the anode mixture 1 and the bottom wall 10 of the anode can 2 is improved, and the discharge characteristics of the battery are improved.
第１図はこの発明に係るアルカリ電池の一例を
示す縦断面図、第２図は従来考えられているアル
カリ電池を示す縦断面図である。
１……陽極合剤、２……陽極缶、３……セパレ
ータ、３ａ……周縁、４……陰極剤、５……陰極
端子板、５ａ……周縁部、６……ガスケツト、９
……側壁、１０……底壁、１１……環状のシール
部材、１１ａ……周壁部、１１ｂ……内縁部、１
１ｃ……外縁部。
FIG. 1 is a longitudinal sectional view showing an example of an alkaline battery according to the present invention, and FIG. 2 is a longitudinal sectional view showing a conventionally considered alkaline battery. DESCRIPTION OF SYMBOLS 1... Anode mixture, 2... Anode can, 3... Separator, 3a... Peripheral edge, 4... Cathode agent, 5... Cathode terminal plate, 5a... Peripheral part, 6... Gasket, 9
... Side wall, 10 ... Bottom wall, 11 ... Annular sealing member, 11a ... Peripheral wall portion, 11b ... Inner edge portion, 1
1c... Outer edge.
Claims (1)
内周側に酸化銀などの陽極活物質を主成分とする
陽極合剤１が位置する構成として、上記ガスケツ
ト６を陰極剤４が内填された陰極端子板５の周縁
部５ａと陽極缶２の側壁９および底壁１０とに圧
接することにより封口を行うとともに、上記陽極
合剤１と陰極剤４との間にセパレータ３のほかに
電解液透過能を有しない環状のシール部材１１を
配設して、その水平な内縁部１１ｂを陽極合剤１
と陰極剤４との間で挾持し、かつ上記端子板５の
内面に沿つて屈曲されたテーパ筒状の周縁部１１
ａを介して上記内縁部１１Ｂと連結する水平な外
縁部１１ｃをガスケツト６と陰極端子板５との間
で挾圧して、陽極合剤１と陰極剤４との間のシー
ルを行うことを特徴とするアルカリ電池。1 An anode mixture 1 mainly composed of an anode active material such as silver oxide is located on the inner circumferential side of an annular gasket 6 fitted to the anode can 2, and the gasket 6 is filled with a cathode material 4. The peripheral edge 5a of the cathode terminal plate 5 is brought into pressure contact with the side wall 9 and bottom wall 10 of the anode can 2, thereby sealing is performed. An annular sealing member 11 having no electrolyte permeability is provided, and its horizontal inner edge 11b is connected to the anode mixture 1.
a tapered cylindrical peripheral edge portion 11 which is held between
A horizontal outer edge portion 11c connected to the inner edge portion 11B via a is clamped between a gasket 6 and a cathode terminal plate 5 to seal between the anode mixture 1 and the cathode agent 4. and alkaline batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11004578A JPS5537730A (en) | 1978-09-06 | 1978-09-06 | Alkali cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11004578A JPS5537730A (en) | 1978-09-06 | 1978-09-06 | Alkali cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5537730A JPS5537730A (en) | 1980-03-15 |
| JPS6131940B2 true JPS6131940B2 (en) | 1986-07-23 |
Family
ID=14525704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11004578A Granted JPS5537730A (en) | 1978-09-06 | 1978-09-06 | Alkali cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5537730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194042U (en) * | 1987-05-31 | 1988-12-14 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259960U (en) * | 1985-10-03 | 1987-04-14 |
-
1978
- 1978-09-06 JP JP11004578A patent/JPS5537730A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194042U (en) * | 1987-05-31 | 1988-12-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5537730A (en) | 1980-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4557983A (en) | Air/oxygen cell | |
| JPS59194361A (en) | Air cell | |
| US3442716A (en) | Alkaline cell | |
| JPS6131940B2 (en) | ||
| US3694267A (en) | Leakproof closure seal for battery | |
| JPS63294672A (en) | Button type air-zinc cell | |
| US4074023A (en) | Primary dry cell with masked separator | |
| JPS5928607Y2 (en) | alkaline battery | |
| JPS5831329Y2 (en) | Button alkaline battery | |
| JPS62202470A (en) | Air button cell | |
| JPH0877996A (en) | Battery | |
| JP3557860B2 (en) | Air electrode for air battery and method of manufacturing the air electrode | |
| JPS58220369A (en) | Button-type air cell | |
| JPS5772261A (en) | Button type alkaline battery | |
| JPS57174858A (en) | Alkaline battery | |
| JPS5821070Y2 (en) | Button alkaline battery | |
| JPS5823173Y2 (en) | Button battery | |
| JPH0446374Y2 (en) | ||
| JPS5530188A (en) | Flat type battery | |
| JPS56145659A (en) | Alkaline battery | |
| JPS5866257A (en) | Sealed battery | |
| JPS6063880A (en) | Zinc air battery | |
| JPH0817408A (en) | Alkali zinc battery | |
| JPS58223272A (en) | Button type zinc air battery | |
| JPH08241699A (en) | Button type alkaline battery |