JPS6334849A - Separator for alkaline cell - Google Patents
Separator for alkaline cellInfo
- Publication number
- JPS6334849A JPS6334849A JP61177994A JP17799486A JPS6334849A JP S6334849 A JPS6334849 A JP S6334849A JP 61177994 A JP61177994 A JP 61177994A JP 17799486 A JP17799486 A JP 17799486A JP S6334849 A JPS6334849 A JP S6334849A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- separator
- alkali
- ethylene
- resin
- 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
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 16
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- -1 polypropylene Polymers 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 5
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
- H01M2300/0014—Alkaline electrolytes
-
- 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
【発明の詳細な説明】
イ 発明の目的
産業上の利用分野
本発明はアルカリ電池用セパレータに関するものである
。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention Industrial Application Field The present invention relates to a separator for alkaline batteries.
従来の技術とその問題点
従来、アルカリ電池用セパレータとしてポリプロピレン
系！ａ維の不織布を使用すると、耐薬品性が非常に良好
になることは良く知られている。Conventional technology and its problems Traditionally, polypropylene was used as a separator for alkaline batteries! It is well known that the use of nonwoven fabrics made of a-fibers provides very good chemical resistance.
しかしながら、このポリプロピレン繊維などのポリオレ
フィン系１ａ雌は耐アルカリ性は良いが、疎水性が大き
く電解液との親和性が悪く、したがってまたその電解液
の保持性も悪いという大きな欠点を持っているのである
。However, although this polyolefin type 1a female such as polypropylene fiber has good alkali resistance, it has a major drawback in that it is highly hydrophobic and has poor affinity with electrolytes, and therefore also has poor retention of electrolytes. .
これを解決するために従来では、界面活性剤をこの疎水
性繊維に処理することによって電解液との親和性を向上
させるという手段が採用されているのである。In order to solve this problem, a conventional method has been adopted in which the hydrophobic fibers are treated with a surfactant to improve their affinity with the electrolyte.
しかし、この界面活性剤処理による電池用セパレータを
使用したアルカリ電池は、これを長期間のサイクルによ
り使用していると、ある期間を過ぎたところでその活性
剤が遊離して来てこの時点から急激な電池放電容量の低
下を招き、サイクル寿命がかなり短期になるという大き
な問題点を有しているのである。However, when an alkaline battery using a battery separator treated with a surfactant is used for a long period of time, the surfactant becomes liberated after a certain period of time, and from this point on, the surfactant suddenly becomes free. This has the major problem of causing a decrease in battery discharge capacity and shortening the cycle life considerably.
未発明は上記問題点を解決するためになされたもので、
疎水性の大きい耐アルカリ性ｌ＠維を用いた電池用セパ
レータであっても、電解液の親和性が良くすぐれた保液
走力を有し、その電池の急激な容量低下もなくサイクル
寿命も非常に長くなるというアルカリ電池用セパレータ
を提供しようとするものである。The uninvented invention was made to solve the above problems,
Even battery separators using highly hydrophobic and alkali-resistant l@fibers have good affinity for the electrolyte and have excellent liquid retention ability, and the battery does not experience a sudden drop in capacity and has an extremely long cycle life. The purpose of the present invention is to provide a separator for alkaline batteries that is long in length.
口 発明の構成と作用
本発明の構成は、耐アルカリ性１′＃！雄の表面の１部
又は全部がエチレン−ビニルアルコール共重合樹脂で被
覆されてなることを特徴とするアルカリ゛准他用セパレ
ータ、を要旨とするものである。Structure and operation of the invention The structure of the present invention has alkali resistance of 1'#! The gist of the present invention is a separator for alkaline and other materials, characterized in that part or all of the male surface is coated with an ethylene-vinyl alcohol copolymer resin.
問題点を解決するための手段
耐アルカリ性繊維に、界面活性剤以外の処理剤で、親木
性を長期に渡って付与できるものを得るべく、種々なる
処理剤について検討したところ、エチレン−ビニルアル
コールＪｔ−ｆｆｉ 合ｍ １ｍが非常に好適な結果を
得ることを見い出したのである。Means to Solve the Problem In order to obtain a treatment agent other than surfactants that could impart wood-philic properties to alkali-resistant fibers over a long period of time, we investigated various treatment agents and found that ethylene-vinyl alcohol It has been found that a Jt-ffi total m of 1 m gives very suitable results.
本発明における耐アルカリ性繊維とは、ポリプロピレン
、ポリエチレン等のポリオレフィン系繊維、または１６
ナイロン、１４ナイロン、１２ナイロン等の炭化水素鎖
の長いポリアミド繊維、さらにはこれらの複合Ｍ＆雄が
あげられ、これらを単独で用いても良いし、適宜併用し
ても良いものである。The alkali-resistant fiber in the present invention refers to polyolefin fiber such as polypropylene, polyethylene, or 16
Examples include polyamide fibers with long hydrocarbon chains such as nylon, 14 nylon, and 12 nylon, and composite M&M fibers thereof, which may be used alone or in combination as appropriate.
なお、この様な耐アルカリ性！ａ雄は疎水性の大きいも
のであるため、必要に応じて少量の親木性繊維を混合す
ることも可能である。In addition, it has such alkali resistance! Since a-male is highly hydrophobic, it is also possible to mix a small amount of wood-loving fiber as necessary.
この耐アルカリ性繊維に被覆されるエチレン−ビニルア
ルコール共重合樹脂とは、エチレンとビニルアルコール
を共重合させた樹脂であり、その共重合比率はエチレン
含有率が２０〜４０モル％の範囲のものが好ましく、現
水性の水酸基が多く含まれるので適度な親木性を有し、
さらにエチレン重合部によって炭化水素主鎖を有する繊
維との親和性も具備する様になっているのである。The ethylene-vinyl alcohol copolymer resin coated on this alkali-resistant fiber is a resin made by copolymerizing ethylene and vinyl alcohol, and the copolymerization ratio is in the range of 20 to 40 mol%. Preferably, it contains a large amount of water-based hydroxyl groups, so it has moderate wood-philicity,
Furthermore, the ethylene polymerization portion provides compatibility with fibers having a hydrocarbon main chain.
このエチレン−ビニルアルコール樹脂の耐アルカリ性繊
維＾、の被ｍ−ｔ一段としては、含浸等の方法により付
着させる手段、又は芯が耐アルカリ性繊維で鞘がエチレ
゛／−ビニルアルコール共重合樹脂からなるいわゆるシ
ン・サヤ複合繊維の形態とする手段があげられるのであ
る。One step of applying this alkali-resistant fiber of ethylene-vinyl alcohol resin is to attach it by a method such as impregnation, or the core is an alkali-resistant fiber and the sheath is made of ethylene/vinyl alcohol copolymer resin. One example of this is to make it into a so-called thin-saya composite fiber.
含浸による被覆手段としては、このエチレンーヒニルア
ルコール樹脂を例えば水とアルコールの混合溶媒（イソ
プロピルアルコール３０％水溶液など）に溶解させ、こ
れを耐アルカリ性繊維からなる不織布に含浸させ、つい
で、水に浸ｆａしてエチレン−ビニルアルコール樹脂を
凝固させ乾燥することにより達成できるものである。As a coating method by impregnation, the ethylene-hinyl alcohol resin is dissolved in a mixed solvent of water and alcohol (such as a 30% aqueous solution of isopropyl alcohol), and a nonwoven fabric made of alkali-resistant fibers is impregnated with this, and then soaked in water. This can be achieved by soaking in fa to coagulate the ethylene-vinyl alcohol resin and drying it.
なお、この場合、必ずしも不織布全体に含浸させる必要
はなく、ドツト状やストライブ状等の模様状に部分的に
含浸させても良く、要は処理された疎水性の不＃ｌ＆布
がアルカリ電池用セパレータとしての電解液保持性を発
揮する様に含浸加工してやれば良いのである。また処理
される耐アルカリ性ｒａ！ａは不織布に限定されるもの
ではなく、系状態やウェブ状態で処理してから不織布等
に仕上げても良いものである。In this case, it is not necessarily necessary to impregnate the entire nonwoven fabric, but it may be partially impregnated in patterns such as dots or stripes. All it has to do is to impregnate it so that it exhibits the ability to retain electrolyte as a separator. Also treated with alkali resistance RA! A is not limited to a nonwoven fabric, and may be processed in a system state or a web state and then finished into a nonwoven fabric or the like.
この含浸処理によって、１酎アルカリ性繊維に対して固
形分比で１０〜３０％のエチレン−ビニルアルコール共
重合樹脂を付着させてやれば良く、特に１５〜２５％位
が好適な結果を得るものとなっている。Through this impregnation treatment, it is sufficient to attach ethylene-vinyl alcohol copolymer resin of 10 to 30% in terms of solid content per 1 cup of alkaline fiber, and in particular, 15 to 25% will give suitable results. It has become.
また、シン・サヤ複合繊維による被覆手段は紡糸技術に
よって達成されるものであり、９０〜７０％の芯部を形
成する耐アルカリ性繊維と１０〜３０％の鞘部を形成す
るエチレン−ビニルアルコール樹脂とからなるシン・サ
ヤ複合繊維を紡糸によって作り、これを不織布に仕上げ
てやれば良いのである。In addition, the covering means with Shin Saya composite fiber is achieved by spinning technology, and consists of 90-70% alkali-resistant fiber forming the core and ethylene-vinyl alcohol resin forming 10-30% sheath. All you have to do is spin a thin-saya composite fiber consisting of , and make it into a non-woven fabric.
以上の様にして構成される本発明セパレータはいずれの
場合も、熱接着の可能な素材であって加工しやすいもの
となっており、エチレン−ビニルアルコール共重合樹脂
の親木性部が表面に出てセパレータの保液能力を発揮し
、しかもこの共重合樹脂のエチレン重合部が耐アルカリ
性繊維との相容性を有しているため相互の結合力は強く
、エチレン−ビニルアルコール共重合樹脂が耐アルカリ
性繊維から分離することはなく、保液能力が失われない
のである。In any case, the separator of the present invention constructed as described above is made of a material that can be thermally bonded and is easy to process, and the wood-loving part of the ethylene-vinyl alcohol copolymer resin is on the surface. The ethylene-vinyl alcohol copolymer resin exhibits the liquid retention ability of the separator, and the ethylene polymer part of this copolymer resin is compatible with the alkali-resistant fibers, so the mutual bonding force is strong. It does not separate from the alkali-resistant fibers and does not lose its liquid retention ability.
したがって長期に渡ってこのアルカリ電池をサイクル使
用してもその寿命は非常に長く、またポリプロピ１／ン
不織布に界面活性剤を処理したセパレータの様な急激な
容量低下も起らないのである。Therefore, even if this alkaline battery is cycled over a long period of time, its lifespan is very long, and the capacity does not decrease as rapidly as in the case of a separator made of a polypropylene 1/2 nonwoven fabric treated with a surfactant.
実施例
エチレン−ビニルアルコール共重合ｍ１ｌｌ（Ｅｌ禾合
成■製のソアールＺ・・・エチレン含有率２９モル％）
をイソプロピルアルコールの３０％水溶液に溶解させ、
この溶液をポリプロピレン不織布に含浸して、ついで水
中に浸漬して前記の樹脂を不織布繊維間に固形分にて２
０％の割合で付着凝固させ、乾燥して本発明セパレータ
とした。Example: Ethylene-vinyl alcohol copolymerization ml (Soar Z manufactured by El Kasei ■...ethylene content 29 mol%)
is dissolved in a 30% aqueous solution of isopropyl alcohol,
A polypropylene nonwoven fabric is impregnated with this solution, and then immersed in water to distribute the resin between the nonwoven fabric fibers at a solid content of 2.
It was adhered and solidified at a rate of 0% and dried to obtain a separator of the present invention.
比較例１
実施例と同じ不織布に界面活性剤の水溶液（ノニオン活
性剤５％水溶液）を絞り率３０％に処理して乾燥し、比
較例セパレータとした。Comparative Example 1 The same nonwoven fabric as in Example was treated with an aqueous solution of a surfactant (5% aqueous solution of nonionic active agent) to a squeezing rate of 30% and dried to obtain a comparative separator.
比較例２
６ナイロンによるボリアミド不織布を比較例セパレータ
として使用した。Comparative Example 2 A polyamide nonwoven fabric made of nylon 6 was used as a comparative separator.
これら実施例及び比較例についての諸物性を第１表に示
す。Table 1 shows the physical properties of these Examples and Comparative Examples.
第１表
なお、耐アルカリ性は比ｉ１．３の水酸化カリ水溶液に
８０″Ｃにて１ケ月間浸清したときの東！Ｉｉ減を示し
ている。Table 1 shows the decrease in alkali resistance when immersed in a potassium hydroxide aqueous solution with a ratio of 1.3 at 80''C for one month.
また、容量ダウンの電池試験条件は、容積が１２００ｍ
Ａｈのアルカリ電池を各セパレータで作成し２０℃にて
、充電は４００ｍＡＸ４時間−放電はｌΩ定抵抗放電２
時間、を１サイダルとした試験であり、これを７００〜
１５００回繰返元してその放電容量の維持率を測定した
のである。In addition, the battery test conditions for reducing capacity are as follows:
Ah alkaline batteries were made with each separator at 20℃, charged at 400mAX for 4 hours, and discharged at 1Ω constant resistance discharge 2.
This is a test where time is one cidal, and this is 700~
The discharge capacity retention rate was measured by repeating the test 1,500 times.
第１図はこの結果をグラフ化したもので、この曲線より
上記表中にデータとして記入したのである。FIG. 1 is a graph of this result, and data from this curve was entered in the table above.
この表及び第１図に見られる様に、本発明セパレータは
ヌレ性も良く耐アルカリ性も優秀で、放電容量のサイク
ル寿命もきわめて長く。As seen in this table and FIG. 1, the separator of the present invention has good wettability and excellent alkali resistance, and has an extremely long discharge capacity cycle life.
比較例に比べて非常にすぐれたアルカリ電池用セパレー
タであることが認められるのである。It is recognized that the separator for alkaline batteries is extremely superior to the comparative examples.
ハ 発明の効果
本発明は以上の様なものであり、耐アルカリ性繊維つま
り疎水性の繊維の表面に、エチレン−ビニルアルコール
共重合樹脂を被覆したことに最大の特徴を有し、アルカ
リ電池用のセパレータに取って最も重要な物性である耐
アルカリ性は基材となる繊維により本質的に具備するも
のであり、しかもこの繊維の欠点である疎水性を被覆樹
脂にてカバーし親水性を付与したものであるため電解液
との親和性が良くすぐれた保液俺力を発揮するのである
。C. Effects of the Invention The present invention is as described above, and its greatest feature is that the surface of the alkali-resistant fiber, that is, the hydrophobic fiber, is coated with an ethylene-vinyl alcohol copolymer resin. Alkali resistance, which is the most important physical property for a separator, is inherently provided by the base fiber, and the hydrophobicity, which is a drawback of this fiber, is covered with a coating resin to give it hydrophilicity. Therefore, it has good affinity with the electrolyte and exhibits excellent liquid retention ability.
さらに本発明における被覆樹脂は基材である疎水性繊維
との相容性も良好であり、したがって疎水性繊維から分
離する様なこともなく、長期のサイクル使用にも容量低
下は少なく、非常にすぐれたサイクル寿命を有し、従来
の電池寿命を大幅に改善するものであり、その有用性は
きわめてル大なものである。Furthermore, the coating resin in the present invention has good compatibility with the hydrophobic fibers that are the base material, so it does not separate from the hydrophobic fibers, and there is little capacity loss even after long-term cycle use. It has an excellent cycle life, greatly improving the lifespan of conventional batteries, and its usefulness is extremely large.
第１図は実施例と比較例のアルカリ電池のサイクル使用
命を測定して得られた曲線のグラフである。
第１図FIG. 1 is a graph of curves obtained by measuring the cycle life of alkaline batteries of Examples and Comparative Examples. Figure 1
Claims (1)
−ビニルアルコール共重合樹脂 で被覆されてなることを特徴とするアルカ リ電池用セパレータ。 ２、耐アルカリ性繊維が、ポリオレフィン系繊維、疎水
性ポリアミド系繊維、又はこれ らの複合繊維である特許請求の範囲第１項 記載のアルカリ電池用セパレータ。 ３、エチレン−ビニルアルコール共重合樹脂の耐アルカ
リ性繊維への被覆が、含浸等の 手段により付着されているものである特許 請求の範囲第１項記載のアルカリ電池用セ パレータ。 ４、エチレン−ビニルアルコール共重合樹脂の耐アルカ
リ性繊維への被覆が、耐アルカ リ性繊維が芯でエチレン−ビニルアルコー ル共重合樹脂が鞘となっているシン・サヤ 複合繊維である特許請求の範囲第１項記載 のアルカリ電池用セパレータ。[Scope of Claims] 1. A separator for an alkaline battery, characterized in that part or all of the surface of an alkali-resistant fiber is coated with an ethylene-vinyl alcohol copolymer resin. 2. The separator for alkaline batteries according to claim 1, wherein the alkali-resistant fibers are polyolefin fibers, hydrophobic polyamide fibers, or composite fibers thereof. 3. The separator for alkaline batteries according to claim 1, wherein the coating of the ethylene-vinyl alcohol copolymer resin on the alkali-resistant fibers is applied by means such as impregnation. 4. Claim 1, wherein the coating of the ethylene-vinyl alcohol copolymer resin on the alkali-resistant fiber is a thin-saya composite fiber in which the alkali-resistant fiber is the core and the ethylene-vinyl alcohol copolymer resin is the sheath. A separator for alkaline batteries as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61177994A JPS6334849A (en) | 1986-07-29 | 1986-07-29 | Separator for alkaline cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61177994A JPS6334849A (en) | 1986-07-29 | 1986-07-29 | Separator for alkaline cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6334849A true JPS6334849A (en) | 1988-02-15 |
| JPH0557706B2 JPH0557706B2 (en) | 1993-08-24 |
Family
ID=16040682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61177994A Granted JPS6334849A (en) | 1986-07-29 | 1986-07-29 | Separator for alkaline cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6334849A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248461A (en) * | 1988-03-30 | 1989-10-04 | Matsushita Electric Ind Co Ltd | Separator for battery and manufacture thereof |
| JPH0249350A (en) * | 1988-08-10 | 1990-02-19 | Kuraray Co Ltd | Separator for alkaline battery |
| JPH0355755A (en) * | 1989-07-21 | 1991-03-11 | Kanai Hiroyuki | Alkali battery separator |
| JPH0425426U (en) * | 1990-06-26 | 1992-02-28 | ||
| US6790562B2 (en) | 2001-03-16 | 2004-09-14 | Sanyo Electric Co., Ltd. | Separator for alkaline secondary battery, method for preparing the same alkaline secondary battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733828A (en) * | 1980-08-08 | 1982-02-24 | Mitsubishi Electric Corp | Timer circuit |
-
1986
- 1986-07-29 JP JP61177994A patent/JPS6334849A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733828A (en) * | 1980-08-08 | 1982-02-24 | Mitsubishi Electric Corp | Timer circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248461A (en) * | 1988-03-30 | 1989-10-04 | Matsushita Electric Ind Co Ltd | Separator for battery and manufacture thereof |
| JP2590519B2 (en) * | 1988-03-30 | 1997-03-12 | 松下電器産業株式会社 | Sealed alkaline storage battery separator and method for producing the same |
| JPH0249350A (en) * | 1988-08-10 | 1990-02-19 | Kuraray Co Ltd | Separator for alkaline battery |
| JPH0355755A (en) * | 1989-07-21 | 1991-03-11 | Kanai Hiroyuki | Alkali battery separator |
| JPH0425426U (en) * | 1990-06-26 | 1992-02-28 | ||
| US6790562B2 (en) | 2001-03-16 | 2004-09-14 | Sanyo Electric Co., Ltd. | Separator for alkaline secondary battery, method for preparing the same alkaline secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0557706B2 (en) | 1993-08-24 |
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