JPS6050029B2 - thin battery - Google Patents
thin batteryInfo
- Publication number
- JPS6050029B2 JPS6050029B2 JP54058828A JP5882879A JPS6050029B2 JP S6050029 B2 JPS6050029 B2 JP S6050029B2 JP 54058828 A JP54058828 A JP 54058828A JP 5882879 A JP5882879 A JP 5882879A JP S6050029 B2 JPS6050029 B2 JP S6050029B2
- Authority
- JP
- Japan
- Prior art keywords
- anode
- gasket
- battery
- annular body
- liquid
- 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
- 239000007788 liquid Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- GRRMZXFOOGQMFA-UHFFFAOYSA-J YoYo-1 Chemical compound [I-].[I-].[I-].[I-].C12=CC=CC=C2C(C=C2N(C3=CC=CC=C3O2)C)=CC=[N+]1CCC[N+](C)(C)CCC[N+](C)(C)CCC[N+](C1=CC=CC=C11)=CC=C1C=C1N(C)C2=CC=CC=C2O1 GRRMZXFOOGQMFA-UHFFFAOYSA-J 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
【発明の詳細な説明】
この発明は、コイン型と称されるような薄型電池に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thin battery called a coin type battery.
一般的に、苛性カリなどのアルカリ電解液を用いる電池
では、従来より耐漏液性の向上を図るために、封口部に
シール材を塗布するなどの種々の手段が採られている。Generally, in batteries using an alkaline electrolyte such as caustic potash, various measures have been taken to improve leakage resistance, such as applying a sealant to the sealing part.
しかしながら、近年、小型軽量化の面から需用が増大し
ている薄型電池は、上記のアルカリ電解質電池のみなら
ず有機電解質電池においても、総高を低くするために、
陽極缶の内周面および内底面に接するガスケットを介し
て陽極缶と陰極端子板とが嵌合される構造となつており
、このガスケットと陽極缶との接面からの漏液に対する
充分な防止対策はまだ見い出されていない現状である。
例えば、ガスケットに当接する陽極缶の内面に、液体パ
ッキングなどのシール材を塗布した場合でも、塗布むら
を生じ易いこと、塗布量を大きくできないこと、あるい
は嵌合時の接触にて塗布面が擦傷されて不均一になるこ
となどにより、良好な耐漏液性は付与されない。また、
上記の塗布を均一に行なうには、電池自龜 、 −−−
゛」レー４ｊ−イロロ↓ヨヨ１ ιロツ 」一ての作業
性が悪くなる。However, in recent years, the demand for thin batteries has increased due to their smaller size and lighter weight, and in order to lower the total height, not only the above-mentioned alkaline electrolyte batteries but also organic electrolyte batteries.
The structure is such that the anode can and the cathode terminal plate are fitted through a gasket that contacts the inner peripheral surface and inner bottom surface of the anode can, and there is sufficient protection against liquid leakage from the contact surface between this gasket and the anode can. Currently, no countermeasures have been found yet.
For example, even if a sealing material such as liquid packing is applied to the inner surface of the anode can that contacts the gasket, the application may be uneven, the amount of application may not be large, or the applied surface may be scratched due to contact when mating. Good leakage resistance cannot be imparted due to non-uniformity caused by the coating. Also,
In order to apply the above uniformly, it is necessary to
゛''Re 4j - Iroro ↓ Yoyo 1 ιrotsu'' All workability becomes worse.
この発明は、上記の薄型電池において、陽極缶の立ち上
がり基部内面とガスケットの内周面との間に、液体パッ
キングを含浸した環状体を装填することにより、ガスケ
ットと陽極缶との接面からの漏液を充分に防止したもの
である。In the thin battery described above, the present invention provides a structure in which an annular body impregnated with liquid packing is loaded between the inner surface of the rising base of the anode can and the inner circumferential surface of the gasket. This sufficiently prevents liquid leakage.
以下、この発明をアルカリ電解質電池に適用した場合に
ついて、図面に基いて説明する。Hereinafter, a case where the present invention is applied to an alkaline electrolyte battery will be explained based on the drawings.
第１図はこの発明の電池の一例を示す側面図であり、１
は陽極缶、２は陰極端子板である。FIG. 1 is a side view showing an example of the battery of the present invention.
is an anode can, and 2 is a cathode terminal plate.
第２図はその要部を示し、陽極缶１と陰極端子板２とが
、陽極缶１の内底面５および内周面６に接する環状のガ
スケット３を介して嵌合されている。陽極缶１の立ち上
がり基部内面７とガスケット面８の間に、アスファルト
ピッチ、脂肪ポリアミド、ワックス、ポリブデンなどか
らなる液体パッキングを含浸した環状体４が装填されて
いる。電池内部の陰極側には亜鉛アマルガムなどの陰極
活物質を含む陰極剤９が、陽極側には酸化銀な”どの陽
極活物質を主成分とする陽極合剤１０が、各々収納され
ている。陰極側と陽極側は、陰極剤９に接するビニロン
、レイヨン混沙紙などからなる吸収体１１、ならびに陽
極合剤１０に当接されたセパレータ１２によつて隔てら
れている。１３は、塩化ビニルやポリスチロールなどの
合成樹脂よりなり、内周端が吸収体１１とセパレータ１
２との間に嵌入し、外周端がガスケット３の内周端部と
陽極缶１との間で挾圧された、環状の絶縁体である。FIG. 2 shows the main parts thereof, in which an anode can 1 and a cathode terminal plate 2 are fitted together via an annular gasket 3 that is in contact with the inner bottom surface 5 and inner circumferential surface 6 of the anode can 1. FIG. Between the upright base inner surface 7 and the gasket surface 8 of the anode can 1 is loaded an annular body 4 impregnated with a liquid packing consisting of asphalt pitch, fatty polyamide, wax, polybdenum, etc. Inside the battery, a cathode material 9 containing a cathode active material such as zinc amalgam is housed on the cathode side, and an anode mixture 10 containing a cathode active material such as silver oxide as a main component is housed on the anode side. The cathode side and the anode side are separated by an absorber 11 made of vinylon, rayon mixed paper, etc. that is in contact with the cathode agent 9, and a separator 12 that is in contact with the anode mixture 10. 13 is vinyl chloride. The inner peripheral end is made of synthetic resin such as
This is an annular insulator that fits between the anode can 2 and the anode can 1 and whose outer peripheral end is clamped between the inner peripheral end of the gasket 3 and the anode can 1.
Ｊ 苛性カリなどの電解液は、その大部分が陰極側に、
一部が陽極側に注入されている。J Most of electrolytes such as caustic potash are on the cathode side.
A portion is injected into the anode side.
この電池の組み立ては、例えば周縁にガスケット３を嵌
着し、内部に陰極剤９、セパレータおよび陽極合剤１０
を内填した陰極端子板２に、立ち上がり基部内面７に液
体バッキングの粘着性を利用して環状体４を粘着させた
陽極缶１を、逆さにして嵌合することにより行なわれる
。To assemble this battery, for example, a gasket 3 is fitted around the periphery, and a cathode material 9, a separator, and an anode mixture 10 are placed inside.
This is done by fitting the anode can 1, which has the annular body 4 adhered to the inner surface 7 of the upright base part using the adhesiveness of the liquid backing, into the cathode terminal plate 2 filled with the anode terminal plate 2, upside down.
液体バッキングを含浸した環状体４としては、封口圧に
て変形可能な材質のものがより望ましく、例えば紙リン
グ、発泡樹脂リングなどの多孔性基体からなるものが好
適である。The annular body 4 impregnated with the liquid backing is preferably made of a material that can be deformed by sealing pressure, and is preferably made of a porous substrate such as a paper ring or a foamed resin ring.
また、液体バッキングを含浸した環状体は、陽極缶の立
ち上がり基部内面と、ガスケットとの間に形成されてい
るが、この環状体の形成場所はガスケットが圧縮される
場所では液体バッキングが絞り出されるため好ましくな
く、絞め付け力が小さい場所、すなわち陽極缶の立ち上
がり基部内面とガスケット間が好適である。In addition, an annular body impregnated with liquid backing is formed between the inner surface of the rising base of the anode can and the gasket, and the area where this annular body is formed is where the gasket is compressed, where the liquid backing is squeezed out. Therefore, a location where the clamping force is small is preferable, that is, a location between the inner surface of the rising base of the anode can and the gasket.
この発明では、上記例の如く、液体バッキングを含浸し
た環状体が装填されているため、封口時一の圧力や時間
経過に伴う内圧の上昇によつて電解液が環状体の側に浸
入してきても、含浸された液体バッキングが押し出され
て陽極缶とガスケットとの接面を充填することになるた
め、耐漏液性が充分に保たれる。In this invention, as in the above example, the annular body impregnated with a liquid backing is loaded, so that the electrolyte may infiltrate into the annular body due to the pressure at the time of sealing or the increase in internal pressure over time. Also, since the impregnated liquid backing is extruded and fills the contact surface between the anode can and the gasket, leakage resistance is sufficiently maintained.
また、この発明の電池では、液，体バッキングなどのシ
ール材を陽極缶とガスケットとの接面に塗布する場合に
比較して、耐漏液性に優れるばかりか、環状体を装填す
るだけでよいので組立の作業性も良好である。下表は、
上記の構成例において、環状体としてアスファルトピッ
チを含浸させた紙リングを使用したこの発明の電池Ａと
、全く環状体を使用しなかつた電池Ｂとの耐漏液性試験
結果を示したものである。In addition, the battery of this invention not only has superior leakage resistance compared to the case where a sealing material such as liquid or body backing is applied to the contact surface between the anode can and the gasket, but also requires only the annular body to be loaded. Therefore, the workability of assembly is also good. The table below is
In the above configuration example, the results of a leakage resistance test are shown for Battery A of the present invention, which uses a paper ring impregnated with asphalt pitch as an annular body, and Battery B, which uses no annular body at all. .
なお、表中の数値は、電池Ａおよび電池゛Ｂの各々５柵
を温度６０℃、相対湿度９０％の雰囲気中で２０日間放
置したときの、陽極缶とガスケットの接面からの漏液が
認められた電池の個数である。上表からも、この発明の
電池の耐漏液性が非常に優秀であることがわかる。The values in the table are based on the amount of liquid leaking from the contact surface between the anode can and the gasket when the five walls of battery A and battery B were left in an atmosphere with a temperature of 60°C and a relative humidity of 90% for 20 days. This is the number of batteries allowed. The above table also shows that the battery of the present invention has excellent leakage resistance.
第１図はこの発明の電池の一例を示す側面図、第２図は
その要部拡大断面図である。
１・・・・・・陽極缶、３・・・・・・ガスケット、４
・・・・・・液体バッキングを含浸した環状体、７・・
・・・・陽極缶の立ち上がり基部内面、８・・・・・・
ガスケット内周面。FIG. 1 is a side view showing an example of the battery of the present invention, and FIG. 2 is an enlarged sectional view of the main parts thereof. 1... Anode can, 3... Gasket, 4
...Annular body impregnated with liquid backing, 7...
...Inner surface of the rising base of the anode can, 8...
Inner surface of gasket.
Claims (1)
介して陰極端子板と陽極缶を嵌合させる薄型電池におい
て、陽極缶の立ち上がり起部内面とガスケットの外周面
との間に、液体パッキングを含浸した環状体を装填して
なることを特徴とする薄型電池。1. In a thin battery in which a cathode terminal plate and an anode can are fitted through a gasket in contact with the inner bottom surface and inner peripheral surface of the anode can, liquid packing is placed between the inner surface of the rising edge of the anode can and the outer peripheral surface of the gasket. A thin battery characterized by being loaded with an impregnated annular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54058828A JPS6050029B2 (en) | 1979-05-14 | 1979-05-14 | thin battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54058828A JPS6050029B2 (en) | 1979-05-14 | 1979-05-14 | thin battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55150548A JPS55150548A (en) | 1980-11-22 |
| JPS6050029B2 true JPS6050029B2 (en) | 1985-11-06 |
Family
ID=13095503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54058828A Expired JPS6050029B2 (en) | 1979-05-14 | 1979-05-14 | thin battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050029B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533169B2 (en) * | 1985-05-01 | 1993-05-18 | Nissan Motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4457990A (en) * | 1982-03-19 | 1984-07-03 | Union Carbide Corporation | Thin miniature cell construction with reshaped gasket |
-
1979
- 1979-05-14 JP JP54058828A patent/JPS6050029B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533169B2 (en) * | 1985-05-01 | 1993-05-18 | Nissan Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55150548A (en) | 1980-11-22 |
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