JPH09259840A - Battery jar for sealed secondary battery - Google Patents
Battery jar for sealed secondary batteryInfo
- Publication number
- JPH09259840A JPH09259840A JP8088998A JP8899896A JPH09259840A JP H09259840 A JPH09259840 A JP H09259840A JP 8088998 A JP8088998 A JP 8088998A JP 8899896 A JP8899896 A JP 8899896A JP H09259840 A JPH09259840 A JP H09259840A
- Authority
- JP
- Japan
- Prior art keywords
- vinylidene chloride
- resin
- battery
- battery case
- secondary battery
- 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.)
- Withdrawn
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉛蓄電池、アルカ
リ電池等の各種二次電池を製造するに適する部材に関す
る。更に詳しくは、耐温水透過性、耐ガス透過性、耐薬
品性に優れる密閉形二次電池用電槽に関する。TECHNICAL FIELD The present invention relates to a member suitable for manufacturing various secondary batteries such as lead storage batteries and alkaline batteries. More specifically, the present invention relates to a battery container for a sealed secondary battery, which is excellent in hot water permeation resistance, gas permeation resistance, and chemical resistance.
【０００２】[0002]
【従来の技術】移動機器用駆動源、コンピュータのデー
タバックアップのための電源、また太陽電池エネルギー
の有効利用の目的、環境保護の観点から各種二次電池の
用途が拡大されつつある。特に、自動車の内燃機関の所
要電力を供給するために二次電池が多く使用されること
は周知であるが、更には、内燃機関の代わりに二次電池
そのものを駆動源とする、いわゆる電気自動車の開発も
近年盛んに行われている。2. Description of the Related Art Applications of various secondary batteries are being expanded from the viewpoints of driving sources for mobile devices, power sources for computer data backup, effective use of solar cell energy, and environmental protection. In particular, it is well known that a secondary battery is often used to supply the required power of an internal combustion engine of an automobile, but further, a so-called electric vehicle using the secondary battery itself as a drive source instead of the internal combustion engine. Has been actively developed in recent years.
【０００３】産業技術の発達に伴い、二次電池の需要は
益々増加する傾向にあり、小型軽量、大電気容量の二次
電池に対する要請が高まっている。With the development of industrial technology, the demand for secondary batteries tends to increase more and more, and the demand for secondary batteries of small size, light weight and large electric capacity is increasing.
【０００４】このような二次電池は、酸またはアルカリ
の電解質と電極を収納する電槽が不可欠である。該電槽
に要求される特性としては、強酸、アルカリに対する耐
性（自動車用途の二次電池として使用される時は、更に
耐ガソリン性、耐油性）や外部衝撃にも十分耐え得る耐
衝撃性が要求される。In such a secondary battery, a battery case containing an acid or alkali electrolyte and electrodes is indispensable. The characteristics required for the battery case are resistance to strong acids and alkalis (further gasoline resistance and oil resistance when used as secondary batteries for automobiles) and impact resistance sufficient to withstand external impact. Required.
【０００５】更に、この電槽は、充電時の化学反応に伴
う発熱や生成物、例えば水分や水素ガス等をも十分考慮
したものでなければならない。Further, the battery case must be one in which heat generated by the chemical reaction during charging and products such as water and hydrogen gas are sufficiently taken into consideration.
【０００６】ことに、密閉形二次電池にあたっては、小
形・軽量化の要請に適合させるために、電槽では、薄肉
で、且つ耐熱性があり、充電時の内圧の上昇に耐え、長
期間にわたって電解質の性状を適正に維持し得ることが
必要となる。[0006] In particular, in the case of the sealed secondary battery, in order to meet the demand for smaller size and lighter weight, the battery case has a thin wall and is heat resistant, withstands an increase in internal pressure during charging, and has a long life. It is necessary that the properties of the electrolyte can be properly maintained throughout.
【０００７】従来は電槽の材料としてポリプロピレン樹
脂、ＡＢＳ樹脂が多く採用されている。しかし、ポリプ
ロピレン樹脂は、水蒸気バリアー性に優れるものの、水
素、酸素のガス透過性が比較的大きく、電槽の性能とし
て十分でないことが指摘されている。また、成形性に優
れるものの、薄肉リブ構造の製品の射出成形に於いて、
成形収縮率が大きいために生じるヒケ等の表面欠陥や剛
性、特に高温時の剛性（熱時剛性）に劣る等の問題点も
指摘されている。一方、ＡＢＳ樹脂は、ポリプロピレン
樹脂に比べ、水蒸気バリアー性、水素等のガスバリアー
性が劣る点や、自動車用途に於いてガソリン、オイル
（例えば、ブレーキオイル、防錆剤）に対する耐性に劣
る点が指摘されている。Conventionally, polypropylene resin and ABS resin have been widely used as materials for battery cases. However, it has been pointed out that the polypropylene resin, although excellent in water vapor barrier property, has relatively large gas permeability of hydrogen and oxygen and is not sufficient as the performance of the battery case. In addition, although it is excellent in moldability, in the injection molding of products with a thin rib structure,
It has been pointed out that surface defects such as sink marks and rigidity caused by a large molding shrinkage ratio, and in particular, inferior rigidity at high temperature (rigidity at heat), etc. On the other hand, ABS resin is inferior in vapor barrier property and gas barrier property to hydrogen and the like in comparison with polypropylene resin, and is inferior in resistance to gasoline and oil (for example, brake oil, rust preventive agent) in automobile applications. It has been pointed out.
【０００８】また、特開平６−２０３８１４号公報に開
示されているポリフェニレンエーテル系樹脂とポリスチ
レン系樹脂からなる密閉形二次電池用電槽は、ＡＢＳ樹
脂に比べ水蒸気バリアー性に優れるものの、該樹脂組成
物で成形された電槽は、流動性が悪いため成形時に発生
する成形歪や蓋を熱溶着する際に熱歪によりストレスク
ラックが発生する問題や自動車用に於いてはＡＢＳ樹脂
同様、ガソリン、オイルに対する耐性が指摘されてい
る。Further, the battery case for a sealed type secondary battery, which is disclosed in Japanese Patent Laid-Open No. 6-203814, made of a polyphenylene ether resin and a polystyrene resin, is superior to ABS resin in water vapor barrier property, Since the battery case molded with the composition has poor fluidity, the molding strain that occurs during molding and the problem that stress cracks occur due to thermal strain when the lid is heat-welded, and in automobiles, as with ABS resin, gasoline , Resistance to oil has been pointed out.
【０００９】このように、従来の材料で製造された電槽
を用いた二次電池は各々問題を抱えており、特に水蒸気
バリアー性と水素、酸素のガスバリアー性の両方を満足
する密閉形二次電池用電槽を得ることはできなかった。As described above, each of the secondary batteries using the battery case made of the conventional material has problems, and in particular, the sealed type secondary battery satisfying both the water vapor barrier property and the hydrogen and oxygen gas barrier properties. It was not possible to obtain a battery case for the secondary battery.
【００１０】[0010]
【発明が解決しようとする課題】本発明は、従来技術の
欠点を解消し、長期間にわたって初期の電解質の性状を
維持し得る、水蒸気バリアー性、電池内で発生する水
素、酸素等のガスに対するガスバリアー性に優れた密閉
形二次電池用電槽を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention solves the drawbacks of the prior art and keeps the initial electrolyte properties for a long period of time, against water vapor barrier properties, and against gases such as hydrogen and oxygen generated in the battery. An object is to provide a battery case for a sealed secondary battery having excellent gas barrier properties.
【００１１】[0011]
【課題を解決するための手段】本発明者らは、前記課題
を解決するために鋭意検討を重ねた結果、塩化ビニリデ
ン系樹脂層を有する電槽は、水蒸気のみならず、水素、
酸素等のガスバリアー性にも優れることを見い出し、本
発明をなすに至った。Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that a battery container having a vinylidene chloride resin layer is
It has been found that the gas barrier properties against oxygen and the like are also excellent, and the present invention has been completed.
【００１２】即ち、本発明は、塩化ビニリデン系樹脂層
を有することを特徴とするガスバリアー性に優れた密閉
形二次電池用電槽に関するものである。That is, the present invention relates to a battery case for a sealed type secondary battery having an excellent gas barrier property, which has a vinylidene chloride resin layer.
【００１３】[0013]
【発明の実施の形態】以下、本発明を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
【００１４】本発明でいう塩化ビニリデン系樹脂とは、
塩化ビニリデンの単独重合体または塩化ビニリデンと共
重合可能な単量体との共重合体を言う。The vinylidene chloride resin referred to in the present invention is
A vinylidene chloride homopolymer or a copolymer of vinylidene chloride and a monomer copolymerizable with vinylidene chloride.
【００１５】塩化ビニリデンと共重合可能な単量体とし
ては、例えば塩化ビニル、アクリル酸メチル、アクリル
酸エチル、アクリル酸ブチル等のアクリル酸エステル
類、メタクリル酸メチル、メタクリル酸エチル、メタク
リル酸ブチル等のメタクリル酸エステル類、アクリルニ
トリル、メタクリルニトリル等が挙げられる。これらの
うちでも、塩化ビニル、アクリル酸エステル類、メタク
リル酸エステル類が工業的によく使用されている。Examples of the monomer copolymerizable with vinylidene chloride include vinyl chloride, acrylic acid esters such as methyl acrylate, ethyl acrylate and butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and the like. Examples thereof include methacrylic acid esters, acrylonitrile, and methacrylonitrile. Among these, vinyl chloride, acrylic acid esters, and methacrylic acid esters are industrially often used.
【００１６】塩化ビニリデン共重合体に於ける塩化ビニ
リデンの比率はガスバリアー性の観点から大きい方が好
ましく、好ましくは５１〜９９重量％、より好ましくは
６０〜９８重量％である。具体的には、塩化ビニリデン
／塩化ビニル共重合体では７０〜９５重量％、塩化ビニ
リデン／アクリル酸エステル共重合体では８０〜９５重
量％の範囲が好ましい。The proportion of vinylidene chloride in the vinylidene chloride copolymer is preferably large from the viewpoint of gas barrier properties, and is preferably 51 to 99% by weight, more preferably 60 to 98% by weight. Specifically, the range is preferably 70 to 95% by weight for the vinylidene chloride / vinyl chloride copolymer and 80 to 95% by weight for the vinylidene chloride / acrylic acid ester copolymer.
【００１７】塩化ビニリデン系樹脂の分子量は特に限定
されないが、実用上、重量平均分子量で、好ましくは１
万〜１００万、より好ましくは２万〜５０万である。The molecular weight of the vinylidene chloride resin is not particularly limited, but for practical use, it is a weight average molecular weight, preferably 1
It is 10,000 to 1,000,000, and more preferably 20,000 to 500,000.
【００１８】塩化ビニリデン系樹脂層は電槽の表面に形
成してもよいし、塩化ビニリデン系樹脂層の水蒸気バリ
アー性、ガスバリアー性を損なわない限り、塩化ビニリ
デン系樹脂層の上に更に他の層を形成してもよい。電槽
表面に形成する場合には、電槽内側表面、即ち電解質と
接する側の表面、電槽外側表面の何れに形成してもよ
く、また、電槽表面全体に形成してもよいし、一部に形
成してもよい。塩化ビニリデン系樹脂層の上に更に形成
する他の層としては、例えば耐薬品性を付与する目的で
ＰＴＦＥ等のフッ素樹脂層等が挙げられる。The vinylidene chloride resin layer may be formed on the surface of the battery case, and another vinylidene chloride resin layer may be formed on the surface of the vinylidene chloride resin layer as long as the water vapor barrier property and the gas barrier property of the vinylidene chloride resin layer are not impaired. You may form a layer. When formed on the surface of the battery case, it may be formed on the inner surface of the battery container, that is, on the surface in contact with the electrolyte or on the outer surface of the battery container, or may be formed on the entire surface of the battery container, You may form in one part. Examples of the other layer further formed on the vinylidene chloride resin layer include a fluororesin layer such as PTFE for the purpose of imparting chemical resistance.
【００１９】塩化ビニリデン系樹脂層の膜厚は特に限定
されず、塩化ビニリデン系樹脂層の形成方法、電槽に要
求される性能等により決定されるが、実用上、好ましく
は０．５〜２００μｍ、より好ましくは１〜１００μｍ
である。The film thickness of the vinylidene chloride resin layer is not particularly limited and is determined by the method of forming the vinylidene chloride resin layer, the performance required for the battery case, etc., but in practice, it is preferably 0.5 to 200 μm. , More preferably 1 to 100 μm
It is.
【００２０】本発明に用いる電槽本体の材質は特に限定
されず、従来から使用されているポリプロピレン系樹
脂、ＡＢＳ樹脂、ポリフェニレンエーテル系樹脂、ポリ
スチレン系樹脂等が使用できるが、成形性、剛性、特に
高温時（熱時剛性）、耐油・耐薬品性、耐温水透過性、
コストの観点からポリプロピレン樹脂をマトリックス
相、ポリフェニレンエーテル系樹脂を分散相、スチレン
−ブタジエン共重合体の水素添加物を相溶化剤とするポ
リプロピレン／ポリフェニレンエーテル系樹脂のアロイ
樹脂等が良好に使用できる。The material of the battery case body used in the present invention is not particularly limited, and conventionally used polypropylene resin, ABS resin, polyphenylene ether resin, polystyrene resin and the like can be used. Especially at high temperatures (rigidity when hot), oil and chemical resistance, hot water permeation resistance,
From the viewpoint of cost, an alloy resin of polypropylene / polyphenylene ether resin using a polypropylene resin as a matrix phase, a polyphenylene ether resin as a dispersed phase, and a hydrogenated product of a styrene-butadiene copolymer as a compatibilizer can be favorably used.
【００２１】塩化ビニリデン系樹脂層の形成方法は特に
限定されず、電槽の形状や要求されるガスバリアー性
能、加工コスト、加工難易度等により決定される。具体
的には、例えば、塩化ビニリデン系樹脂フィルムを加熱
し、真空、圧空、または真空と圧空の併用条件下で塩化
ビニリデン系樹脂フィルムを電槽に貼り合わせするフィ
ルム積層法、乳化重合した塩化ビニリデン系樹脂エマル
ジョン溶液や塩化ビニリデン系樹脂を溶かした溶剤液中
に電槽を浸漬して電槽に塩化ビニリデン系樹脂被膜を形
成する溶液浸漬法、エマルジョン溶液、溶剤溶液を電槽
にスプレー塗装するスプレー塗装法等が挙げられる。The method for forming the vinylidene chloride resin layer is not particularly limited and is determined depending on the shape of the battery case, the required gas barrier performance, the processing cost, the processing difficulty and the like. Specifically, for example, a vinylidene chloride-based resin film is heated, and a film lamination method in which a vinylidene chloride-based resin film is attached to a battery case under vacuum, compressed air, or combined use of vacuum and compressed air, emulsion-polymerized vinylidene chloride. Solution immersion method of forming a vinylidene chloride resin coating on the battery by dipping the battery in a solvent containing a vinylidene chloride resin or a vinylidene chloride resin solution. The coating method etc. are mentioned.
【００２２】フィルム積層法に用いる塩化ビニリデン系
樹脂フィルムとしては、表層が電槽と同種の樹脂で構成
された塩化ビニリデン系樹脂複合フィルムが接着性の観
点から好ましい。例えば、ポリプロピレン系樹脂の電槽
に於いては、表層が同種のポリプロピレン系樹脂で構成
されるポリプロピレン系樹脂と塩化ビニリデン系樹脂の
複合フィルム、例えば「バリアロン−ＣＸ＃５６」（旭
化成工業（株）製、商標）等が良好に使用できる。塩化
ビニリデン系樹脂の単層フィルム、例えば「サランフィ
ルム」（旭化成工業（株）製、商標）等も使用できる
が、電槽との接着性をよくするために接着層を単層フィ
ルム側、或いは電槽側に介在させて積層する方法が好ま
しい。As the vinylidene chloride resin film used in the film laminating method, a vinylidene chloride resin composite film having a surface layer made of the same resin as that of the battery case is preferable from the viewpoint of adhesiveness. For example, in a polypropylene resin battery case, a composite film of a polypropylene resin and a vinylidene chloride resin whose surface layer is composed of the same type of polypropylene resin, for example, "Varalon-CX # 56" (Asahi Kasei Co., Ltd.) Manufactured, trademark, etc. can be used favorably. A single layer film of vinylidene chloride resin, for example, "Saran film" (trademark, manufactured by Asahi Kasei Kogyo Co., Ltd.) can also be used, but in order to improve the adhesiveness to the battery case, the single layer film side, or A method of laminating with interposing it on the battery case side is preferable.
【００２３】溶液浸漬法、スプレー塗装法に用いる樹脂
は塩化ビニリデン／アクリル酸エステル共重合体が好ま
しく、アクリル酸エステルの比率が５〜２０重量％のも
のが良好に使用できる。アクリル酸エステルの比率が５
重量％未満では製膜性が悪くなる傾向があり、２０重量
％を超えるとガスバリアー性能が不十分となる傾向があ
る。製膜性とガスバリアー性能のバランスからアクリル
酸エステルの比率が決定される。塩化ビニリデン／アク
リル酸エステル共重合体の分子量は、重量平均分子量で
１万〜１００万、好ましくは２万〜５０万のものが良好
に使用できる。The resin used in the solution dipping method and the spray coating method is preferably vinylidene chloride / acrylic acid ester copolymer, and those having an acrylic acid ester ratio of 5 to 20% by weight can be favorably used. Acrylic ester ratio is 5
If it is less than 20% by weight, the film-forming property tends to be poor, and if it exceeds 20% by weight, the gas barrier performance tends to be insufficient. The ratio of acrylic ester is determined from the balance between film-forming property and gas barrier performance. The vinylidene chloride / acrylic acid ester copolymer having a weight average molecular weight of 10,000 to 1,000,000, preferably 20,000 to 500,000 can be favorably used.
【００２４】溶剤液に用いる溶剤としてはテトラヒドロ
フランにメチルエチルケトン（ＭＥＫ）、トルエンを混
合したものが良好に使用できる。As the solvent used in the solvent solution, a mixture of tetrahydrofuran with methyl ethyl ketone (MEK) and toluene can be favorably used.
【００２５】溶液浸漬法、スプレー塗装法で電槽に塩化
ビニリデン系樹脂層を形成する場合も、電槽の材質によ
って接着性を向上させるため、予めプライマー処理を施
すのが好ましい。Even when the vinylidene chloride resin layer is formed in the battery case by the solution dipping method or the spray coating method, it is preferable to perform a primer treatment in advance in order to improve the adhesiveness depending on the material of the battery case.
【００２６】[0026]
【実施例】以下、実施例により本発明を具体的に説明す
る。本発明は以下の例に限定されるものではない。The present invention will be described below in detail with reference to examples. The present invention is not limited to the following examples.
【００２７】尚、透湿度、ガス透過度は、標準条件（シ
ート成形に適した温度）で押出成形（４０ｍｍフルフラ
イトスクリュー、Ｌ／Ｄ＝２７）して厚さ約０．４ｍｍ
のシートを作成し、次の試験法に準拠して評価した。The water vapor transmission rate and gas permeability are about 0.4 mm after extrusion molding (40 mm full flight screw, L / D = 27) under standard conditions (temperature suitable for sheet molding).
Sheet was prepared and evaluated according to the following test method.
【００２８】（１）水蒸気透過率：ＪＩＳ−Ｋ７１２９
Ｂ（赤センサー法）に準拠し、試験温度４０±５℃、相
対湿度差１００％で、２４時間に透過面積５０ｃｍ2の
条件で測定した。(1) Water vapor transmission rate: JIS-K7129
According to B (red sensor method), the test temperature was 40 ± 5 ° C., the relative humidity difference was 100%, and the transmission area was 50 cm 2 for 24 hours.
【００２９】（２）水素ガス透過率：ＪＩＳ−Ｋ７１２
６Ａ（差圧法）に準拠し、試験温度４０±５℃、試験圧
力７６０ｍｍＨｇで、２４時間に透過面積３８．４６ｃ
ｍ2の条件で測定した。(2) Hydrogen gas permeability: JIS-K712
According to 6A (differential pressure method), test temperature 40 ± 5 ° C., test pressure 760 mmHg, permeation area 38.46 c in 24 hours
It was measured under the condition of m 2 .
【００３０】（実施例１）表１に示す電槽用材料に安定
剤として酸化亜鉛／硫化亜鉛＝１／１を０．５重量部添
加して単軸押出機（４０ｍｍ径フルフライト型スクリュ
ー、Ｌ／Ｄ＝２７）、二軸押出機（ＺＳＫ−４０、ウェ
ルナー社製）にて設定２８０℃で混練してペレットを作
成し、押出成形により約０．３ｍｍの厚さのシートを作
成し、３００ｍｍ角の大きさのサンプルを得た。Example 1 0.5 parts by weight of zinc oxide / zinc sulfide = 1/1 as a stabilizer was added to the battery case material shown in Table 1 to prepare a single-screw extruder (40 mm diameter full flight type screw, L / D = 27), a twin-screw extruder (ZSK-40, manufactured by Werner Co., Ltd.) is kneaded at a setting of 280 ° C. to prepare pellets, and a sheet having a thickness of about 0.3 mm is prepared by extrusion molding. A sample having a size of 300 mm square was obtained.
【００３１】次いで、表１に示す塩化ビニリデン系樹脂
フィルムを用い、真空成形機にて塩化ビニリデン系樹脂
フィルムを１８０℃の温度で加熱しサンプルの表面に積
層した。塩化ビニリデン系樹脂フィルムを積層したサン
プルの水蒸気透過率、ガス透過率の測定結果を表２に示
す。Then, using the vinylidene chloride resin film shown in Table 1, the vinylidene chloride resin film was heated at a temperature of 180 ° C. by a vacuum forming machine and laminated on the surface of the sample. Table 2 shows the measurement results of the water vapor transmission rate and the gas transmission rate of the sample in which the vinylidene chloride resin film was laminated.
【００３２】（実施例２）実施例１で用いたシートから
１５０ｍｍ角の大きさのサンプルを得た。次いで、表１
に示す塩化ビニリデン系樹脂のエマルジョン溶液を入れ
た容器の中にサンプルを浸漬し、サンプルの表面に塩化
ビニリデン系樹脂の被膜を形成した後、６０℃の乾燥機
中に２時間放置した。塩化ビニリデン系樹脂を被覆（積
層）したサンプルの水蒸気透過率、ガス透過率の測定結
果を表２に示す。(Example 2) A 150 mm square sample was obtained from the sheet used in Example 1. Then, Table 1
The sample was immersed in a container containing the emulsion solution of vinylidene chloride resin shown in 1 above to form a film of vinylidene chloride resin on the surface of the sample, and then left in a dryer at 60 ° C. for 2 hours. Table 2 shows the measurement results of the water vapor transmission rate and the gas transmission rate of the sample coated (laminated) with the vinylidene chloride resin.
【００３３】（比較例１）実施例１で用いたシートを塩
化ビニリデン系樹脂を積層しないで、そのままの状態で
水蒸気透過率、ガス透過率を測定した。測定結果を表２
に示す。Comparative Example 1 The water vapor permeability and the gas permeability of the sheet used in Example 1 were measured as they were without laminating the vinylidene chloride resin. Table 2 shows the measurement results.
Shown in
【００３４】[0034]
【表１】 [Table 1]
【００３５】[0035]
【表２】 [Table 2]
【００３６】[0036]
【発明の効果】本発明の電槽は、塩化ビニリデン系樹脂
層を有するため、水蒸気バリアー性のみならず、水素、
酸素等のガスバリアー性にも優れる。EFFECTS OF THE INVENTION Since the battery case of the present invention has a vinylidene chloride resin layer, it has not only water vapor barrier properties but also hydrogen,
It also has excellent gas barrier properties against oxygen.
【００３７】従って、本発明にかかる電槽を使用する密
閉形二次電池にあっては、水蒸気バリアー性に優れるた
め、水分の消失が防止され、二次電池寿命が延長され
る。また、水素、酸素等の活性ガスのガスバリアー性に
も優れるので電池性能の維持のみならず、安全性も確保
される。Therefore, in the sealed type secondary battery using the battery case according to the present invention, since the water vapor barrier property is excellent, the loss of water is prevented and the life of the secondary battery is extended. Further, since it has an excellent gas barrier property against active gas such as hydrogen and oxygen, not only the battery performance is maintained, but also the safety is secured.
【００３８】本発明は、二次電池に要求される厳しい性
能を満たすものであり、二次電池の小型化、高機能化に
応えるものである。The present invention satisfies the severe performance required for a secondary battery, and responds to downsizing and high functionality of the secondary battery.
Claims (4)
特徴とする密閉形二次電池用電槽。1. A battery case for a sealed secondary battery, comprising a vinylidene chloride resin layer.
電槽表面に有することを特徴とする請求項１に記載の密
閉形二次電池用電槽。2. The battery case for a sealed secondary battery according to claim 1, which has a vinylidene chloride resin layer on at least the surface of the battery case.
μｍ〜２００μｍであることを特徴とする請求項１また
は２に記載の密閉形二次電池用電槽。3. The vinylidene chloride resin layer has a thickness of 0.5.
The battery case for a sealed secondary battery according to claim 1 or 2, characterized in that the thickness is from 200 to 200 μm.
クス相、ポリフェニレンエーテル系樹脂を分散相、スチ
レン−ブタジエン共重合体の水素添加物を相溶化剤とす
るポリプロピレン／ポリフェニレンエーテル系樹脂のア
ロイ樹脂よりなることを特徴とする請求項１〜３に記載
の密閉形二次電池用電槽。4. The battery case comprises an alloy resin of polypropylene / polyphenylene ether resin using polypropylene resin as a matrix phase, polyphenylene ether resin as a dispersed phase, and hydrogenated styrene-butadiene copolymer as a compatibilizer. The battery case for a sealed secondary battery according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8088998A JPH09259840A (en) | 1996-03-19 | 1996-03-19 | Battery jar for sealed secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8088998A JPH09259840A (en) | 1996-03-19 | 1996-03-19 | Battery jar for sealed secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09259840A true JPH09259840A (en) | 1997-10-03 |
Family
ID=13958485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8088998A Withdrawn JPH09259840A (en) | 1996-03-19 | 1996-03-19 | Battery jar for sealed secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09259840A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092094A (en) * | 2001-09-19 | 2003-03-28 | Japan Storage Battery Co Ltd | Cell device |
| JP2005079080A (en) * | 2003-08-28 | 2005-03-24 | Pionics Co Ltd | Thin battery pack |
| US7452629B2 (en) | 2003-03-14 | 2008-11-18 | Panasonic Corporation | Nickel metal hydride storage battery |
| US7666549B2 (en) | 2002-06-26 | 2010-02-23 | Panasonic Corporation | Enclosed nickel-metal hydride storage battery |
| JP2014184672A (en) * | 2013-03-25 | 2014-10-02 | Seiko Epson Corp | Liquid storage body |
| JP2015047782A (en) * | 2013-09-02 | 2015-03-16 | セイコーエプソン株式会社 | Ink storage body, ink storage body set, and package of the same |
| JP2015537332A (en) * | 2013-09-03 | 2015-12-24 | エルジー・ケム・リミテッド | Pouch exterior material for secondary battery and pouch-type secondary battery including the same |
-
1996
- 1996-03-19 JP JP8088998A patent/JPH09259840A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092094A (en) * | 2001-09-19 | 2003-03-28 | Japan Storage Battery Co Ltd | Cell device |
| US7666549B2 (en) | 2002-06-26 | 2010-02-23 | Panasonic Corporation | Enclosed nickel-metal hydride storage battery |
| US7452629B2 (en) | 2003-03-14 | 2008-11-18 | Panasonic Corporation | Nickel metal hydride storage battery |
| JP2005079080A (en) * | 2003-08-28 | 2005-03-24 | Pionics Co Ltd | Thin battery pack |
| JP2014184672A (en) * | 2013-03-25 | 2014-10-02 | Seiko Epson Corp | Liquid storage body |
| JP2015047782A (en) * | 2013-09-02 | 2015-03-16 | セイコーエプソン株式会社 | Ink storage body, ink storage body set, and package of the same |
| JP2015537332A (en) * | 2013-09-03 | 2015-12-24 | エルジー・ケム・リミテッド | Pouch exterior material for secondary battery and pouch-type secondary battery including the same |
| US9882180B2 (en) | 2013-09-03 | 2018-01-30 | Lg Chem, Ltd. | Pouch case including internal, intermediate and external resin layers and secondary battery including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030603 |