JPS62154556A - Battery - Google Patents
BatteryInfo
- Publication number
- JPS62154556A JPS62154556A JP60292923A JP29292385A JPS62154556A JP S62154556 A JPS62154556 A JP S62154556A JP 60292923 A JP60292923 A JP 60292923A JP 29292385 A JP29292385 A JP 29292385A JP S62154556 A JPS62154556 A JP S62154556A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- isobutylene
- molecular weight
- present
- crystalline polypropylene
- 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.)
- Granted
Links
- -1 polypropylene Polymers 0.000 claims abstract description 14
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims abstract description 13
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 239000003566 sealing material Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 5
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000000379 polymerizing effect Effects 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 abstract 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 241000705989 Tetrax Species 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
-
- 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)
Abstract
Description
【発明の詳細な説明】
［発明の利用分野〕
本発明は、シール材でシールしてなる電池に関し、さら
に詳しくは結晶性ポリプロピレンを含むイソブチレン系
重合体からなるシール材で電池封口部を封止してなる電
池に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a battery sealed with a sealing material, and more specifically, to a battery sealed with a sealing material made of an isobutylene polymer containing crystalline polypropylene. Regarding the battery made by
［従来技術とその問題点コ
アルカリ電解液を使用するいわゆるアルカリ電池は、水
酸化ナトリウム、水酸化カリウムなどのアルカリ水溶液
特有のクリープ特性のために、従来より種々のシール材
の利用が提案されている。[Prior art and its problems] In so-called alkaline batteries that use a co-alkaline electrolyte, the use of various sealing materials has been proposed due to the creep characteristics peculiar to alkaline aqueous solutions such as sodium hydroxide and potassium hydroxide. .
たとえば特公昭４６−１６４４９号公報には、合成ゴム
製のガスケットおよび１４０蓋により利口せしめるアル
カリ電池においてｎ−ブチレンとインブチレンとの共重
合体を主とする塗布剤を開口部の間隙にシールする技術
が開示されている。For example, Japanese Patent Publication No. 46-16449 describes a method for sealing a coating agent mainly composed of a copolymer of n-butylene and imbutylene in the gap between the openings of an alkaline battery that is made smart with a synthetic rubber gasket and a 140 lid. The technology has been disclosed.
さらに特開昭５５−５９６５５号公報には有機電解質を
用いるリチウム電池のシール材としてもポリイソブチレ
ンが応用されている。Further, in JP-A-55-59655, polyisobutylene is applied as a sealing material for lithium batteries using organic electrolytes.
しかしながら、これらのｎ−ブチレンとイソブチレンの
共重合体や、ポリインブチレンなどは必ずしもその耐漏
液性が十分とはいえずさらに改良が望まれていた。However, these copolymers of n-butylene and isobutylene, polyimbutylene, etc. do not necessarily have sufficient leakage resistance, and further improvements have been desired.
本発明は、上記従来技術の問題点を解消するためになさ
れたもので、耐漏液性の良好な電池を提供することを目
的とする。The present invention has been made to solve the problems of the prior art described above, and an object of the present invention is to provide a battery with good leakage resistance.
［発明の構成］
前述の目的を達成するために、本発明の電池は、結晶性
ポリプロピレン０．５〜１０重世％含む平均分子向１０
０〜１０，０００であるイソブチレンを主とする重合体
からなるシール材で電池封口部の間隙をシールしてなる
ことを特徴とする特
以下、本発明を添付図面に基づいてさらに詳しく説明す
る。[Structure of the Invention] In order to achieve the above-mentioned object, the battery of the present invention contains crystalline polypropylene in an average molecular orientation of 10% by weight.
The present invention will now be described in more detail with reference to the accompanying drawings.
第１図は本発明の一実施例に係る電池の封口部を示す。FIG. 1 shows a sealed portion of a battery according to an embodiment of the present invention.
同図に示す電池では、鉄製の陰極端子を兼ねる電池ケー
ス１に、水酸化ニッケルを陽極、カドミウムを陰極とし
た発電要素を収納し、３０％の水酸化カリウム水溶液か
らなる電解液を適量注入している。そして通常の電池と
同様に、ガスケット２および封口板３により電池ケース
１の開口部を封口している。In the battery shown in the figure, a power generating element with a nickel hydroxide anode and a cadmium cathode is housed in a battery case 1 which also serves as an iron cathode terminal, and an appropriate amount of electrolyte consisting of a 30% potassium hydroxide aqueous solution is injected. ing. Then, like a normal battery, the opening of the battery case 1 is sealed with a gasket 2 and a sealing plate 3.
本発明の特徴部分であるシール材４は、電池の封口部の
間隙部５に封入される。シール材４は適宜の流動性を有
しているので、塗布、浸漬、ハケ塗り、注入などのいず
れの充填方法によっても上記間隙部５を封止することが
できる。A sealing material 4, which is a feature of the present invention, is sealed in a gap 5 in a sealing part of a battery. Since the sealing material 4 has appropriate fluidity, the gap 5 can be sealed by any filling method such as coating, dipping, brushing, or injection.
なお、本発明の封口部の間隙には、場合により封口板３
と電極（図示せず）との間隙も含まれる。In addition, in the gap of the sealing part of the present invention, a sealing plate 3 may be used as the case may be.
This also includes the gap between the electrode and the electrode (not shown).
上記シール材４はイソブチレンを主たるモノマーとして
重合してなる重合体であって、イソブチレンのホモポリ
マーまたはイソブチレンとｎ−ブテンのコポリマーなど
がある。これらは日本７５油化学株式会社の商品名：８
石ポリブテン、テトラックスなどとして容易に入手でき
る。またその平均分子量は７００〜１０，０００のもの
が好ましい。７００未満のものは低粘度のために、シー
ル性が不十分である。また平均分子間が１０，０００を
越えると、高粘度となり過ぎて塗布などの取扱い作業が
困難となるので好ましくない。The sealing material 4 is a polymer formed by polymerizing isobutylene as a main monomer, such as an isobutylene homopolymer or a copolymer of isobutylene and n-butene. These are the product names of Japan 75 Yukagaku Co., Ltd.: 8
It is readily available as stone polybutene, tetrax, etc. Moreover, the average molecular weight thereof is preferably 700 to 10,000. If it is less than 700, the sealing performance is insufficient due to low viscosity. Moreover, if the average molecular weight exceeds 10,000, the viscosity becomes too high and handling operations such as coating become difficult, which is not preferable.
本発明においては、上記イソブチレン系重合体に、結晶
性ポリプロピレンを０．５〜１０重量％混合して用いる
ことが特徴とされる。The present invention is characterized in that 0.5 to 10% by weight of crystalline polypropylene is mixed with the isobutylene polymer.
本発明に使用するポリプロピレンは、結晶性であって、
結晶性である限りは、エチレン、ブテンなどの他のオレ
フィンとの共重合体であってもよい。メルトインデック
スは特に限定されないが通常は０．５〜５０程度のもの
が好ましく使用される。The polypropylene used in the present invention is crystalline,
Copolymers with other olefins such as ethylene and butene may be used as long as they are crystalline. The melt index is not particularly limited, but usually one of about 0.5 to 50 is preferably used.
この結晶性ポリプロピレンはプロピレンをチーグラー系
触媒により重合して得られるものであって、立体規則性
を有する。This crystalline polypropylene is obtained by polymerizing propylene using a Ziegler catalyst, and has stereoregularity.
イソブチレン系重合体と結晶性ポリプロピレンの混合は
、適宜の混合方法、たとえば、ミキサー、バンバリーミ
キサ−、エクストルーダーなどを利用してポリプロピレ
ンの融点以上に加熱しながら混合する方法などによるこ
とができる。The isobutylene polymer and the crystalline polypropylene can be mixed by any appropriate mixing method, such as mixing while heating the polypropylene to a temperature higher than its melting point using a mixer, Banbury mixer, extruder, or the like.
本発明は、上記したように電池ケースと該ケースに発電
要素を収納して該電池ケースの開口部を封口してなる電
池に適用でき、特にアルカリ電池、またはジメトキシエ
タン、プロピレンカーボネート、テトラハイドロフラン
などのアブ［１チツクな極性溶媒を用いるリチウム電池
と称される電池などに好適である。As described above, the present invention is applicable to a battery including a battery case, a power generation element housed in the case, and an opening of the battery case sealed, and particularly to alkaline batteries, or dimethoxyethane, propylene carbonate, tetrahydrofuran. It is suitable for batteries called lithium batteries that use polar solvents such as Ab [1].
［実施例および比較例］
以下、本発明を実施例および比較例に基づいて具体的に
説明する。[Examples and Comparative Examples] The present invention will be specifically described below based on Examples and Comparative Examples.
第１図に示す構造の本発明に係る電池（実施例）と、従
来のシール材を使用した電池（比較例）とを作製し、比
較を行なった。A battery according to the present invention having the structure shown in FIG. 1 (Example) and a battery using a conventional sealing material (Comparative Example) were manufactured and compared.
作製した電池は単２型（サイズ：径２５ｍｍ、高さ５０
ｍｍ、 １．５Ａｈ ）のものをそれぞれ２５個であ
る。The fabricated battery is AA type (size: diameter 25 mm, height 50 mm).
mm, 1.5Ah) and 25 pieces each.
これらの電池を、通常の方法で充放電を繰返した後に、
温度４０℃、湿度９５％の雰囲気下で保存した。その後
封口部からの漏液の状態を観察した。After repeatedly charging and discharging these batteries in the usual way,
It was stored in an atmosphere with a temperature of 40° C. and a humidity of 95%. Thereafter, the state of leakage from the sealing part was observed.
結果は漏液した電池の数として第１表に示す。The results are shown in Table 1 as the number of batteries that leaked.
［発明の効果］
以上説明したように、本発明に使用するシール材は、イ
ソブチレン系重合体特有の性質であるいわゆるコールド
フローが少ないので、本発明の電池は長期間の保存にお
いても耐湿液性が良好である。また、このシール材はア
ルカリ電解液にも不活性であるので、本発明の電池はア
ルカリ電解液を用いたものであっても耐湿液性がよい。[Effects of the Invention] As explained above, the sealing material used in the present invention has little so-called cold flow, which is a property unique to isobutylene polymers, so the battery of the present invention has good wet liquid resistance even during long-term storage. is good. Moreover, since this sealing material is also inert to alkaline electrolytes, the battery of the present invention has good resistance to wet liquids even when using alkaline electrolytes.
ざらに、本発明に使用するシール材は適宜の粘度を有し
ているので、注入、塗布などの取扱い作業が容易である
。したがって本発明の電池はその製造が容易であり、安
価に製造することができる。In general, since the sealing material used in the present invention has an appropriate viscosity, handling operations such as injection and coating are easy. Therefore, the battery of the present invention is easy to manufacture and can be manufactured at low cost.
さらに、本発明に使用する結晶性ポリプロピレンは、高
圧ラジカル重合法またはチーグラー系触媒を用いる重合
法などによりエチレンを重合して得られるポリエチレン
よりも、シール材中に含有させる川が少なくても有効に
フロー防止が可能なので、本発明の電池はさらに安価に
製造することができる。Furthermore, the crystalline polypropylene used in the present invention is more effective than polyethylene obtained by polymerizing ethylene by high-pressure radical polymerization method or polymerization method using Ziegler catalyst, even if it is contained in the sealing material. Since flow prevention is possible, the battery of the present invention can be manufactured more cheaply.
第１図は本発明の一実施例に係る電池の封入口部を示す
断面図である。
１・・・ケース、２・・・ガスケット、３・・・封口板
、４・・・シール材、５・・・封口部の間隙部。FIG. 1 is a sectional view showing the sealing opening portion of a battery according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Case, 2... Gasket, 3... Sealing plate, 4... Seal material, 5... Gap part of the sealing part.
Claims (1)
分子量７００〜１０，０００であるイソブチレンを主と
する重合体からなるシール材で電池封口部をシールして
なることを特徴とする電池。1. A battery characterized in that the battery sealing part is sealed with a sealing material made of a polymer mainly composed of isobutylene and having an average molecular weight of 700 to 10,000 and containing 0.5 to 10% by weight of crystalline polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60292923A JPS62154556A (en) | 1985-12-27 | 1985-12-27 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60292923A JPS62154556A (en) | 1985-12-27 | 1985-12-27 | Battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62154556A true JPS62154556A (en) | 1987-07-09 |
| JPH0558220B2 JPH0558220B2 (en) | 1993-08-26 |
Family
ID=17788155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60292923A Granted JPS62154556A (en) | 1985-12-27 | 1985-12-27 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62154556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017179724A1 (en) * | 2016-04-15 | 2017-10-19 | 日本ゼオン株式会社 | Aqueous sealant composition for nonaqueous electrolyte battery |
| DE102018010001A1 (en) * | 2018-12-27 | 2020-07-02 | FRÖTEK Vermögensverwaltung GmbH | Plug of a battery |
-
1985
- 1985-12-27 JP JP60292923A patent/JPS62154556A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017179724A1 (en) * | 2016-04-15 | 2017-10-19 | 日本ゼオン株式会社 | Aqueous sealant composition for nonaqueous electrolyte battery |
| CN108886119A (en) * | 2016-04-15 | 2018-11-23 | 日本瑞翁株式会社 | Battery with nonaqueous electrolyte water system encapsulant composition |
| DE102018010001A1 (en) * | 2018-12-27 | 2020-07-02 | FRÖTEK Vermögensverwaltung GmbH | Plug of a battery |
| CN111384319A (en) * | 2018-12-27 | 2020-07-07 | 德国福泰科投资管理有限公司 | Battery closure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0558220B2 (en) | 1993-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |