JP2985229B2 - Storage battery separator - Google Patents
Storage battery separatorInfo
- Publication number
- JP2985229B2 JP2985229B2 JP2124471A JP12447190A JP2985229B2 JP 2985229 B2 JP2985229 B2 JP 2985229B2 JP 2124471 A JP2124471 A JP 2124471A JP 12447190 A JP12447190 A JP 12447190A JP 2985229 B2 JP2985229 B2 JP 2985229B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- weight
- storage battery
- battery separator
- present
- 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.)
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Classifications
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- 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
- Cell Separators (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は蓄電池用セパレータに係り、特に耐熱性が良
好であると共に、電気抵抗が低く、自動車用蓄電池等に
用いた場合、低温始動性の向上に有効な蓄電池用セパレ
ータに関する。Description: TECHNICAL FIELD The present invention relates to a separator for a storage battery, which has particularly good heat resistance, low electric resistance, and low-temperature startability when used for a storage battery for an automobile or the like. The present invention relates to a storage battery separator effective for improvement.
［従来の技術］ 自動車用途が主な需要を占めているペースト式鉛蓄電
池は、（＋）極板と（−）極板とをガラス繊維からなる
保護マットとセパレータとが隔離して構成されている。
ここで、セパレータの機能は （＋）極板と（−）極板とが電池の中で接触し、短
絡することを防止する。[Prior Art] A paste-type lead-acid battery, which is mainly used for automobiles, has a (+) electrode plate and a (-) electrode plate in which a protective mat made of glass fiber and a separator are separated. I have.
Here, the function of the separator is to prevent the (+) electrode plate and the (-) electrode plate from contacting in the battery and short-circuiting.
電解液を吸収し、イオンを良く通す。 Absorbs electrolyte and passes ions well.
ことであるから、セパレータは、ミクロンオーダーの微
孔が無数にあいた耐薬品性のある薄いシートで構成され
ている。Therefore, the separator is composed of a chemically resistant thin sheet having a myriad of microscopic pores.
ところで、近年、自動車用蓄電池のセパレータには薄
くて、耐酸性、耐酸化性に優れていること以外に、 電気抵抗がより一層低いこと。In recent years, in addition to being thin and excellent in acid resistance and oxidation resistance, a separator of an automobile storage battery has been required to have further lower electric resistance.
耐熱性に優れること。 Excellent heat resistance.
活物質の保持力に優れ、かつ安価であること。 Excellent in holding power of active material and inexpensive.
が要求されるようになってきた。Is being demanded.
ここでの電気抵抗の低いセパレータは、低温始動性
能、低温高率放電性能が更に優れた電池の要求によるも
のであり、の耐熱性は、エンジンルームの狭少化に伴
う高温使用となることによるものである。また、は自
動車走行中の振動による活物質の脱落防止をより効果的
に行なう機能を備え、かつ安価なことを最近特に要求さ
れるようになってきたことによる。The separator having a low electric resistance here is due to a demand for a battery having a further excellent low-temperature start-up performance and low-temperature high-rate discharge performance, and the heat resistance of the separator is due to the use at a high temperature due to the narrowing of the engine room. Things. Another reason is that it has recently been particularly required to have a function of more effectively preventing the active material from dropping off due to vibrations while the vehicle is running, and to be inexpensive.
従来、上記〜の特性を備えるものとして、 ガラス繊維:35〜80重量％ 合成繊維:3〜30重量％ 無機粉末:3〜30重量％ 液体バインダー:10〜15重量％ よりなる蓄電池用セパレータが提案されている（特開昭
62−180954号）。Conventionally, as a battery having the above characteristics, a storage battery separator comprising glass fiber: 35 to 80% by weight, synthetic fiber: 3 to 30% by weight, inorganic powder: 3 to 30% by weight, and liquid binder: 10 to 15% by weight has been proposed. (Japanese
No. 62-180954).
［発明が解決しようとする課題］ 上記特開昭62−180954号に開示される蓄電池用セパレ
ータによれば、前記〜の特性がある程度満足される
が、最近になって、より一層の耐熱性、低温始動性の向
上が求められ、その改善が望まれている。[Problems to be Solved by the Invention] According to the separator for a storage battery disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 62-180954, the above characteristics (1) to (4) are satisfied to some extent. Improvement in low-temperature startability has been demanded, and the improvement has been desired.
即ち、鉛蓄電池の組み立て方法として、極板、セパレ
ータ等を所定配置で積層した積層体の耳部を鉛溶湯に入
れ、溶融鉛の凝固により接着固定するキャスト、オンス
トラップ法が注目され、最近では、この方法が採用され
る傾向にある。キャスト、オンストラップ法に適用した
場合には、従来のエンジンルームの高温度よりも更に高
い温度に晒されることとなり、従ってより一層の高耐熱
性が要求されることとなる。That is, as a method of assembling a lead-acid battery, a cast, on-strap method in which the lugs of a laminated body in which an electrode plate, a separator, and the like are laminated in a predetermined arrangement is put in a molten lead and adhered and fixed by solidification of molten lead has recently attracted attention. , This method tends to be adopted. When applied to the cast or on-strap method, the engine is exposed to a higher temperature than the conventional high temperature of the engine room, and therefore, higher heat resistance is required.
これに対して、特開昭62−180954号に係る蓄電池用セ
パレータでは、構成成分中の有機物が多いため、このよ
うな高耐熱性を確保することができず、燃焼し易く、従
って、キャスト、オンストラップ法により固定する際、
セパレータが燃えたり、コゲたりするという問題があっ
た。On the other hand, in the separator for a storage battery according to JP-A-62-180954, since there are many organic substances in the constituent components, such high heat resistance cannot be secured, and it is easy to burn. When fixing by the on-strap method,
There has been a problem that the separator burns or burns.
また、現在、高効率化、省エネルギー化に対する要求
はますます高くなり、蓄電池用セパレータについては更
に一層の低温始動性の改善が望まれている。Further, at present, demands for higher efficiency and energy saving are increasing more and more, and further improvement in low-temperature startability of storage battery separators is desired.
本発明は上記従来の実情に鑑み、耐熱性及び低温始動
性等の諸特性がより一層改善された蓄電池用セパレータ
を提供することを目的とする。An object of the present invention is to provide a separator for a storage battery in which various characteristics such as heat resistance and low-temperature startability are further improved in view of the above conventional circumstances.
［課題を解決するための手段］ 本発明の蓄電池用セパレータは、平均繊維直径１μｍ
以下のガラス繊維及び比表面積10m2/g以上の無機粉末よ
りなる無機成分70〜82重量％と、ポリエチレン合成パル
プ及びポリエステル繊維よりなる有機成分18〜30重量％
とを含む蓄電池用セパレータであって、ガラス繊維含有
量が30〜55重量％、無機粉末含有量が15〜52重量％、ポ
リエチレン合成パルプ含有量が15〜23重量％、ポリエス
テル繊維含有量が３〜７重量％であることを特徴とす
る。[Means for Solving the Problems] The storage battery separator of the present invention has an average fiber diameter of 1 μm.
70 to 82% by weight of an inorganic component composed of the following glass fiber and inorganic powder having a specific surface area of 10 m 2 / g or more, and 18 to 30% by weight of an organic component composed of polyethylene synthetic pulp and polyester fiber
A glass fiber content of 30 to 55% by weight, an inorganic powder content of 15 to 52% by weight, a polyethylene synthetic pulp content of 15 to 23% by weight, and a polyester fiber content of 3%. -7% by weight.
以下に本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
本発明の蓄電池用セパレータを構成する成分のうち、
平均直径１μｍ以下のガラス繊維及び比表面積10m2/g以
上の無機粉末よりなる無機成分の合計配合割合が70重量
％未満で、ポリエチレン合成パルプ及びポリエステル繊
維よりなる有機成分の合計配合割合が30重量％を超える
と、十分な耐熱性が得られず、電気抵抗も高くなり好ま
しくない。即ち、有機成分は電気抵抗を高める成分であ
るため、その含有量が多いことは好ましいことではな
い。逆に、無機成分が82重量％を超え、有機成分が18重
量％未満であるとセパレータの強度が不足する。従っ
て、本発明において、無機成分は70〜82重量％、好まし
くは75〜82重量％、有機成分は18〜30重量％、好ましく
は18〜25重量％とする。Among the components constituting the storage battery separator of the present invention,
The total blending ratio of inorganic components consisting of glass fibers having an average diameter of 1 μm or less and inorganic powder having a specific surface area of 10 m 2 / g or more is less than 70% by weight, and the total blending ratio of organic components consisting of polyethylene synthetic pulp and polyester fiber is 30% by weight. %, It is not preferable because sufficient heat resistance cannot be obtained and electric resistance increases. That is, since the organic component is a component that increases the electric resistance, it is not preferable that the content is large. Conversely, if the amount of the inorganic component exceeds 82% by weight and the amount of the organic component is less than 18% by weight, the strength of the separator is insufficient. Therefore, in the present invention, the inorganic component is 70 to 82% by weight, preferably 75 to 82% by weight, and the organic component is 18 to 30% by weight, preferably 18 to 25% by weight.
無機成分としてガラス繊維を全く用いないと抄造時の
紙力が弱くなり過ぎて抄紙速度を上げることができず、
生産効率が低下し、製造コストが高騰する。従って、本
発明においては、セパレータ中に、平均繊維径１μｍ以
下のガラス繊維が30〜55重量％、無機粉末が15〜52重量
％で、これらの合量が70〜82重量％となるように配合す
る。If no glass fiber is used as an inorganic component, the paper strength during papermaking becomes too weak to increase the papermaking speed,
Production efficiency decreases and manufacturing costs rise. Therefore, in the present invention, 30-55% by weight of glass fiber having an average fiber diameter of 1 μm or less, 15-52% by weight of inorganic powder, and 70-82% by weight of the separator in the separator. Mix.
なお、平均繊維直径１μｍ以下の細径のガラス繊維
は、セパレータの保液性、抄造の改善に極めて有効であ
る。また、このような細径のガラス繊維は、セパレータ
の密度を低くし、また、孔径を小さくすることにより、
セパレータの電気抵抗を小さくし、鉛蓄電池の低温始動
特性の向上に有効である。In addition, a thin glass fiber having an average fiber diameter of 1 μm or less is extremely effective for improving the liquid retaining property of the separator and improving the papermaking. In addition, such small-diameter glass fibers reduce the density of the separator, and by reducing the pore size,
This is effective in reducing the electrical resistance of the separator and improving the low-temperature starting characteristics of the lead storage battery.
本発明において、無機粉末としては、比表面積10m2/g
以上のシリカ粉末及び／又は珪藻土を用いるのが好まし
い。このような無機粉末を配合することにより、吸液
性、保液性を高めることができる。また、耐酸化性を向
上させる作用も奏される。In the present invention, as the inorganic powder, a specific surface area of 10 m 2 / g
It is preferable to use the above silica powder and / or diatomaceous earth. By incorporating such an inorganic powder, the liquid absorbing property and the liquid retaining property can be improved. In addition, an effect of improving oxidation resistance is also exerted.
特に、比表面積10m2/g以上といった比表面積の大きい
シリカ粉末や珪藻土であれば粒子内部及び粒子表面の細
孔が多く、電解液の保液性の向上及び成層化防止効果に
優れる。シリカ粉末又は珪藻土の比表面積は、特に20m2
/g以上であることが好ましい。本発明においては、特に
湿式法で得られたシリカ粉末を用いるのが有利である。
即ち、シリカ粉末には、乾式法で得られたものもある
が、乾式法で得られたシリカ粉末では粒子内部に細孔が
殆どなく、保液性の改善には効果が低い。一方、湿式法
で得られたシリカ粉末であれば、粒子表面に細孔がで
き、また粒子内部にも細孔が形成されるため、電解液の
保液性を高め、成層化防止に有効である。In particular, silica powder or diatomaceous earth having a large specific surface area, such as a specific surface area of 10 m 2 / g or more, has many pores inside the particles and on the particle surface, and is excellent in improving the liquid retaining property of the electrolytic solution and preventing stratification. The specific surface area of silica powder or diatomaceous earth is particularly 20 m 2
/ g or more. In the present invention, it is particularly advantageous to use silica powder obtained by a wet method.
That is, some silica powders are obtained by a dry method, but silica powders obtained by a dry method have few pores inside the particles, and have little effect in improving the liquid retention. On the other hand, in the case of silica powder obtained by a wet method, pores are formed on the particle surface and pores are also formed inside the particle, so that the liquid retaining property of the electrolytic solution is enhanced, and it is effective for preventing stratification. is there.
このようなシリカ粉末又は珪藻土の粒径は0.05〜20μ
ｍ、好ましくは0.5〜10μｍ、より好ましくは１〜５μ
ｍとするのが望ましい。これは、粒径が0.05μｍ未満で
あると混抄が困難となり、20μｍを超えると液保持力が
小さくなる上に得られるセパレータの強度も低下するか
らである。The particle size of such silica powder or diatomaceous earth is 0.05-20μ
m, preferably 0.5-10 μm, more preferably 1-5 μm
m is desirable. This is because if the particle size is less than 0.05 μm, mixing becomes difficult, and if the particle size exceeds 20 μm, the liquid holding power is reduced and the strength of the obtained separator is also reduced.
本発明において、有機成分としてはポリエステル繊維
とポリエチレン合成パルプを所定割合で併用する。ポリ
エステル繊維としては平均繊維直径3.0〜14μｍ、平均
繊維長さ3.0〜15mmのものが好適である。また、ポリエ
チレン合成パルプとしては、平均繊維直径５〜30μｍ、
平均繊維長さ0.9〜2.1mmのもの、具体的には「SWP」
（三井石油化学（株）製）が好適である。ポリエステル
繊維はセパレータの柔軟性の向上に有効であり、また、
SWPは繊維の絡みが強く、抄造時の紙力を向上させ、抄
紙速度を速くすることができる。従って、本発明におい
ては、これらポリエステル繊維とポリエチレン合成パル
プを併用するが、この場合、両特性を効率的に得るため
に、セパレータ中にポリエステル繊維を３〜７重量％、
SWP等のポリエチレン合成パルプを15〜23重量％配合
し、これらの合量で有機成分が18〜30重量％となるよう
にする。In the present invention, polyester fibers and polyethylene synthetic pulp are used in combination at a predetermined ratio as organic components. Polyester fibers having an average fiber diameter of 3.0 to 14 μm and an average fiber length of 3.0 to 15 mm are preferred. Further, as a polyethylene synthetic pulp, the average fiber diameter 5 to 30 μm,
Those with an average fiber length of 0.9 to 2.1 mm, specifically "SWP"
(Mitsui Petrochemical Co., Ltd.) is preferable. Polyester fiber is effective in improving the flexibility of the separator,
SWP has strong fiber entanglement, improves paper strength during papermaking, and can increase papermaking speed. Accordingly, in the present invention, these polyester fibers and polyethylene synthetic pulp are used in combination.
Polyethylene synthetic pulp such as SWP is blended in an amount of 15 to 23% by weight so that the total amount of these components is 18 to 30% by weight.
本発明の蓄電池用セパレータは、上述の成分の所定量
を用いて常法に従って抄造することにより容易に製造す
ることができるが、抄造にあたっては、少量の液体バイ
ンダー、CMC（カルボキシメチルセルロース）、コーン
スターチ等の各種添加剤を更に配合しても良い。The storage battery separator of the present invention can be easily manufactured by papermaking using a predetermined amount of the above-mentioned components according to a conventional method. In papermaking, a small amount of a liquid binder, CMC (carboxymethylcellulose), corn starch and the like are used. May be further blended.
［作用］ 本発明の蓄電池用セパレータは無機成分が比較的多
く、有機成分が比較的少ないため、蓄電池用セパレータ
の耐熱性が著しく改善される。また、有機成分が少ない
ことから、電気抵抗も低いものとなる。[Operation] Since the storage battery separator of the present invention has a relatively large amount of inorganic components and a relatively small amount of organic components, the heat resistance of the storage battery separator is significantly improved. Further, since the organic component is small, the electric resistance is low.
また、平均繊維直径１μｍ以下の細径のガラス繊維を
所定の割合で含有するため、生産効率が高く、得られる
セパレータの最大孔径が小さく、吸液性、保液性が高
く、また電気抵抗も低減される。セパレータの吸液性、
保液性は無機粉末の配合により、より改善される。In addition, since glass fibers having a small diameter of 1 μm or less in average fiber diameter are contained in a predetermined ratio, the production efficiency is high, the maximum pore diameter of the obtained separator is small, the liquid absorbing property, the liquid retaining property is high, and the electric resistance is high Reduced. Liquid absorption of separator,
The liquid retention is further improved by blending the inorganic powder.
［実施例］ 以下実施例及び比較例について説明する。[Examples] Examples and comparative examples will be described below.
実施例１〜3,比較例１〜３ 第１表に示す材料配合にて蓄電池用セパレータを製造
し、その諸特性の測定結果を第１表に示した。なお、各
測定方法等は下記の通りである。Examples 1 to 3 and Comparative Examples 1 to 3 A storage battery separator was manufactured using the material formulations shown in Table 1, and the measurement results of various characteristics thereof are shown in Table 1. In addition, each measuring method etc. are as follows.
秤量（g/m2） 試料重量を試料面積で除して得られる値。（JIS P 81
24） 厚さ（mm） 試料をその厚み方向に20kg/dm2の荷重で押圧した状態
で測定する。（JIS C 2202） 密度（g/cm3） 試料（重量Ｗ）10cm×10cmの面積（Ｓ）に20kgの荷重
を加えた時の試料の厚さをＴとした時に、式:W/（Ｓ×
Ｔ）（g/cm3）で与えられる値で表わす。Weighing (g / m 2 ) The value obtained by dividing the sample weight by the sample area. (JIS P 81
24) Thickness (mm) Measure while the sample is pressed in the thickness direction with a load of 20 kg / dm 2 . (JIS C 2202) Density (g / cm 3 ) Sample (weight W) When the thickness of a sample when a load of 20 kg is applied to an area (S) of 10 cm × 10 cm (T) is defined as T, the formula: W / (S ×
T) (g / cm 3 ).
最大孔径（μｍ） 試料より35mm×35mmに切断し、これを試験片とする。
試験片をメタノール溶液中に30分以上浸漬した後、サン
プルホルダーに試験片をセットし上部よりピペットでメ
タノール５〜10cc入れる。次に、三方コック（粗調整
用）を全開にし、空気を流す。続いて二方コック（微調
整）を徐々に開いて（Ｕ字型マノメーターの水が静かに
動く程度）いき、サンプルホルダー上のメタノールより
気泡が発生した時の空気圧をＵ字型メーターの差圧によ
り読み取り、次式により最大細孔径を求める。Maximum pore size (μm) Cut into 35 mm x 35 mm from the sample and use it as a test piece.
After the test piece is immersed in a methanol solution for 30 minutes or more, the test piece is set in a sample holder, and 5 to 10 cc of methanol is poured from above with a pipette. Next, the three-way cock (for coarse adjustment) is fully opened and air is flowed. Next, gradually open the two-way cock (fine adjustment) (to the extent that the water in the U-shaped manometer moves gently) and reduce the air pressure when bubbles are generated from the methanol on the sample holder to the differential pressure of the U-shaped meter. And the maximum pore diameter is determined by the following equation.
計算式 電気抵抗（Ω・dm2/枚） JIS C 2313による。a formula Electrical resistance (Ω · dm 2 / sheet) According to JIS C 2313.
耐酸化時間（hr/枚） 第１図に示すような試験装置に試料（厚さ0.3mmのセ
パレータに0.6mm厚さのガラス繊維（平均繊維径19μ
ｍ）マットを貼り合わせたもの。大きさ70×70mm）１を
セットし、荷重（鉛ブロック（70×70mm）5kg）２を載
せた後、耐酸性容器（約132×185×102mm）３に電解液
４として希硫酸（比重1.300/20℃）を約1000ml注入する
（なお、試験中、この液面4aは維持する。）。次いで、
電解液温度を45±２℃に保ち、2.5Aの一定電流（直流）
を通電しながら、一定時間毎に端子電圧を測定する。
（なお、第１図において、５、６はガラス板（70×70×
5mm）、７、８は当板（絶縁板）（50×50×3mm）、９は
陽極板（純鉛板）（50×50×3mm）、10は陰極板（純鉛
板）（50×50×3mm）、11は耐酸性樹脂台である。） 耐酸化時間（hr）は、端子電圧が2.6V以下となった時
間又は電圧低下率が0.2V/時間以上となった時間で表示
する。Oxidation resistance time (hr / sheet) A sample (a 0.3 mm thick separator and a 0.6 mm thick glass fiber (average fiber diameter 19 μm)
m) A mat attached. After setting a size (70 x 70 mm) 1 and placing a load (lead block (70 x 70 mm) 5 kg) 2 on it, dilute sulfuric acid (specific gravity 1.300) was placed in an acid-resistant container (about 132 x 185 x 102 mm) 3 as an electrolyte 4. / 20 ° C.) (the liquid level 4a is maintained during the test). Then
2.5A constant current (DC), keeping the electrolyte temperature at 45 ± 2 ℃
The terminal voltage is measured at regular time intervals while the power is supplied to the terminal.
(In FIG. 1, 5 and 6 are glass plates (70 × 70 ×
5mm), 7 and 8 are this plate (insulating plate) (50x50x3mm), 9 is the anode plate (pure lead plate) (50x50x3mm), 10 is the cathode plate (pure lead plate) (50x 50 × 3mm), 11 is an acid resistant resin base. ) The oxidation resistance time (hr) is indicated by the time when the terminal voltage becomes 2.6 V or less or the time when the voltage drop rate becomes 0.2 V / hour or more.
耐熱性 0.3mm厚さの試料に、0.6mm厚さのガラス繊維（平均繊
維直径19μｍ）マットを貼り合わせたものでキャスト、
オンストラップ法に適用可能な耐熱性を有するものを
○、適用不可なものを×で表示した。Heat resistance Cast with a 0.3mm thick sample bonded to a 0.6mm thick glass fiber (average fiber diameter 19μm) mat.
Those having heat resistance applicable to the on-strap method are indicated by ○, and those not applicable are indicated by ×.
第１表より、実施例の蓄電池用セパレータは、細径ガ
ラス繊維を多く含有するため電気抵抗が低く、また、珪
藻土の配合により耐酸化時間が長く、しかも、無機成分
が多いことから、耐熱性に優れることが明らかである。 From Table 1, it can be seen that the storage battery separators of Examples have a low electric resistance because they contain a large amount of small-diameter glass fibers, and have a long oxidation resistance time due to the addition of diatomaceous earth, and also have a high heat resistance because of a large amount of inorganic components. It is clear that it is excellent.
［発明の効果］ 以上詳述した通り、本発明の蓄電池用セパレータは、
耐熱性が著しく高く、キャスト、オンストラップ加工に
十分耐えることができる。また、従来のセパレータに比
べて電気抵抗が低く、低温始動性に優れる。[Effects of the Invention] As described above in detail, the storage battery separator of the present invention includes:
It has extremely high heat resistance and can withstand cast and on-strap processing. Further, the electric resistance is lower than that of the conventional separator, and the low-temperature startability is excellent.
このため、本発明によれば、自動車用鉛蓄電池用セパ
レータ等として好適な高特性蓄電池用セパレータが提供
される。For this reason, according to the present invention, a high-performance storage battery separator suitable as an automotive lead storage battery separator or the like is provided.
しかも、本発明の蓄電池用セパレータによれば、生産
効率が高く、低コストに製造することができる蓄電池用
セパレータが提供される。Moreover, according to the storage battery separator of the present invention, a storage battery separator that has high production efficiency and can be manufactured at low cost is provided.
第１図は実施例及び比較例において、耐酸化時間の測定
に用いた装置を示す断面図である。 １……試料、２……荷重、 ３……容器、４……電解液、 ９……陽極板、10……陰極板。FIG. 1 is a sectional view showing an apparatus used for measuring an oxidation resistance time in Examples and Comparative Examples. 1 ... sample, 2 ... load, 3 ... container, 4 ... electrolytic solution, 9 ... anode plate, 10 ... cathode plate.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−35455（ＪＰ，Ａ) 特開 平１−248458（ＪＰ，Ａ) 特表 昭57−500040（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 2/16 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-35455 (JP, A) JP-A-1-248458 (JP, A) JP-A-57-500040 (JP, A) (58) Investigation Field (Int.Cl. 6 , DB name) H01M 2/16
Claims (1)
比表面積10m2/g以上の無機粉末からなる無機成分70〜82
重量％と、ポリエチレン合成パルプ及びポリエステル繊
維からなる有機成分18〜30重量％とを含む蓄電池用セパ
レータであって、 ガラス繊維含有量が30〜55重量％、無機粉末含有量が15
〜52重量％、ポリエチレン合成パルプ含有量が15〜23重
量％、ポリエステル繊維含有量が３〜７重量％であるこ
とを特徴とする蓄電池用セパレータ。An inorganic component comprising glass fibers having an average fiber diameter of 1 μm or less and inorganic powder having a specific surface area of 10 m 2 / g or more.
A separator for a storage battery, comprising 18% to 30% by weight of an organic component comprising polyethylene synthetic pulp and polyester fiber, wherein the glass fiber content is 30 to 55% by weight and the inorganic powder content is 15% by weight.
A separator for a storage battery, wherein the separator has a polyethylene pulp content of 15 to 23% by weight and a polyester fiber content of 3 to 7% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2124471A JP2985229B2 (en) | 1990-05-15 | 1990-05-15 | Storage battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2124471A JP2985229B2 (en) | 1990-05-15 | 1990-05-15 | Storage battery separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0419959A JPH0419959A (en) | 1992-01-23 |
| JP2985229B2 true JP2985229B2 (en) | 1999-11-29 |
Family
ID=14886342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2124471A Expired - Fee Related JP2985229B2 (en) | 1990-05-15 | 1990-05-15 | Storage battery separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2985229B2 (en) |
-
1990
- 1990-05-15 JP JP2124471A patent/JP2985229B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0419959A (en) | 1992-01-23 |
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