JP2005310688A - Control valve type lead acid battery - Google Patents
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Abstract
【課題】 負極用ペースト状活物質を改良することによって、格子体への充填が容易であり、長寿命な制御弁式鉛蓄電池を提供する。
【解決手段】 嵩密度が０．２７０ｇ／ｍｌ以上であり、比表面積が２５０ｍ２／ｇ以上であるファーネスブラックを、０．２〜１．０質量％含有する負極用のペースト状活物質を製造する。そして、製造したペースト状活物質を鉛合金製の格子体に充填し、熟成、乾燥をしてペースト式負極板を製造し、該ペースト式負極板を用いて制御弁式鉛蓄電池を製造する。
【選択図】 なしPROBLEM TO BE SOLVED: To provide a control valve type lead-acid battery which can be easily filled into a grid body by improving a paste-like active material for a negative electrode and has a long life.
A paste-like active material for a negative electrode containing 0.2 to 1.0% by mass of furnace black having a bulk density of 0.270 g / ml or more and a specific surface area of 250 m 2 / g or more is produced. To do. Then, the manufactured paste-like active material is filled in a lead alloy lattice, and is aged and dried to manufacture a paste-type negative electrode plate, and a control valve-type lead-acid battery is manufactured using the paste-type negative electrode plate.
[Selection figure] None
Description
本発明は、制御弁式鉛蓄電池に関するものである。 The present invention relates to a valve-regulated lead-acid battery.
安価で信頼性が高いという特徴を有する制御弁式鉛蓄電池は、無停電電源装置や自動車用バッテリーなどに広く使用されている。近年、これらに用いられる制御弁式鉛蓄電池の長寿命化が強く要求されている。 Control valve-type lead acid batteries, which are inexpensive and highly reliable, are widely used in uninterruptible power supply devices and automobile batteries. In recent years, there is a strong demand for extending the life of control valve type lead-acid batteries used in these.
ここで、サイクル用として用いられている制御弁式鉛蓄電池の長寿命化をするには、負極板の充電受け入れ特性を向上させて、負極活物質のサルフェーションを防止する手法が有効である。そこで、電気化学的に安定であり、且つ、導電性を有するカーボンやグラファイトなどの粉末を負極活物質中に添加する手法が用いられている。なお、一般的には、鉛蓄電池用のペースト式負極板は、集電体として鉛合金製の格子体を用い、該格子体にペースト状活物質を充填し、熟成・乾燥して製造をしている。 Here, in order to extend the life of the control valve type lead-acid battery used for the cycle, a technique for improving the charge acceptance characteristic of the negative electrode plate and preventing the sulfation of the negative electrode active material is effective. Therefore, a technique is used in which a powder such as carbon and graphite that is electrochemically stable and has conductivity is added to the negative electrode active material. In general, a paste type negative electrode plate for a lead storage battery is manufactured by using a lead alloy grid as a current collector, filling the grid with a paste-like active material, aging and drying. ing.
最近では、電力貯蔵やアイドル・ストップ・アンド・スタート等のサイクル用途において、従来品に比べて、より長寿命で高い信頼性の制御弁式鉛蓄電池が求められている。そして、これらの制御弁式鉛蓄電池には、従来品に比べて、大量のカーボンやグラファイトなどを負極用のペースト状活物質に添加する手法が用いられている（例えば、特許文献１参照。）。 Recently, there is a demand for a control valve type lead-acid battery having a longer life and higher reliability than conventional products in cycle applications such as power storage and idle stop and start. And these control valve type lead acid batteries use the technique of adding a large amount of carbon, graphite, etc. to the paste-form active material for negative electrodes compared with the conventional product (for example, refer patent document 1). .
しかしながら、ペースト状活物質中に大量のカーボンやグラファイトなどを添加すると、ペースト状活物質が非常に硬くなるために、格子体への充填が困難になるという問題点がある。 However, when a large amount of carbon, graphite, or the like is added to the paste-like active material, the paste-like active material becomes very hard, which makes it difficult to fill the lattice.
上記した問題点に対しては、ペースト状活物質中の水分量を多くして、ペースト状活物質を軟らかくする方法が容易に考えられる。しかしながら、ペースト状活物質中の水分量を多くすると、負極板の単位体積あたりに充填される活物質量が減少するために容量が低下する。また、単位体積あたりの鉛化合物の密度が低下するために、負極活物質粒子間の結合強度も低下する。 To solve the above problems, a method of softening the paste-like active material by increasing the amount of water in the paste-like active material can be easily considered. However, when the amount of water in the pasty active material is increased, the amount of the active material filled per unit volume of the negative electrode plate is reduced, so that the capacity is reduced. In addition, since the density of the lead compound per unit volume decreases, the bond strength between the negative electrode active material particles also decreases.
したがって、ペースト状活物質中の水分量を多くする手法を用いると、負極板容量と正極板容量とのバランスがくずれることや、ガス吸収反応が充分に行われないために次第に電解液量が減少する。その結果、制御弁式鉛蓄電池は短期間で寿命に至るという問題点が認められている。 Therefore, if the method of increasing the amount of water in the paste-like active material is used, the balance between the negative electrode plate capacity and the positive electrode plate capacity is lost, and the gas absorption reaction is not sufficiently performed, so that the amount of electrolyte gradually decreases. To do. As a result, the problem that the valve-regulated lead-acid battery reaches the end of its life in a short period is recognized.
本発明の目的は、負極用のペースト状活物質を改良することによって、電力貯蔵やアイドル・ストップ・アンド・スタート等のサイクル用途において、長寿命な制御弁式鉛蓄電池を提供することである。 An object of the present invention is to provide a control valve type lead-acid battery having a long life in cycle applications such as power storage and idle stop and start by improving a paste-like active material for a negative electrode.
上記した課題を解決するために、本発明に係わる制御弁式鉛蓄電池では、嵩密度が０．２７０ｇ／ｍｌ以上であり、かつ比表面積が２５０ｍ２／ｇ以上のファーネスブラックを、負極用のペースト状活物質に添加するようにした。すなわち、本発明では、導電性を有するカーボンとしてファーネスブラックを用いた。そして、負極用のペースト状活物質への添加量を少なくすることにより、ペースト状活物質中の水分量が少なく、格子体への充填が容易な負極用ペースト状活物質を用いるようにした。 In order to solve the above-described problems, in the control valve type lead storage battery according to the present invention, furnace black having a bulk density of 0.270 g / ml or more and a specific surface area of 250 m 2 / g or more is used as a paste for a negative electrode. It was made to add to a state active material. That is, in the present invention, furnace black is used as carbon having conductivity. Then, by reducing the amount added to the paste active material for the negative electrode, a paste active material for the negative electrode that has a small amount of water in the paste active material and can be easily filled into the lattice is used.
すなわち請求項１の発明は、鉛粉を主成分とするペースト状活物質を、鉛合金製の集電体に充填して作製するペースト式負極板を用いる制御弁式鉛蓄電池において、前記ペースト状活物質には、嵩密度が０．２７０ｇ／ｍｌ以上であり、比表面積が２５０ｍ２／ｇ以上のファーネスブラックが含有されていることを特徴としている。 That is, the invention of claim 1 is directed to a control valve type lead storage battery using a paste type negative electrode plate prepared by filling a paste active material mainly composed of lead powder into a lead alloy current collector. The active material is characterized by containing furnace black having a bulk density of 0.270 g / ml or more and a specific surface area of 250 m 2 / g or more.
請求項２の発明は、請求項１に記載の制御弁式鉛蓄電池において、前記ペースト状活物質には、前記鉛粉に対して、前記ファーネスブラックが０．２〜１．０質量％含有されていることを特徴とするものである。 The invention according to claim 2 is the control valve type lead acid battery according to claim 1, wherein the paste-like active material contains 0.2 to 1.0 mass% of the furnace black with respect to the lead powder. It is characterized by that.
本発明の効果として、格子体への充填が容易な負極用ペースト状活物質を製造することができるとともに、サイクル用途において、長寿命な制御弁式鉛蓄電池を提供することができる。 As an effect of the present invention, it is possible to produce a negative electrode paste active material that can be easily filled into a lattice body, and to provide a long-life control valve type lead storage battery in cycle applications.
以下において、本発明品を実施するための最良の形態について詳細に説明する。 The best mode for carrying out the product of the present invention will be described in detail below.
１．負極用ペースト状活物質の作製
後述する各種の仕様の負極用のペースト状活物質を製造する。そして、それぞれの負極用ペースト状活物質についてＪＩＳ規格の針入度測定装置（離合社（株）製）を用いて、針入度を測定して、負極用のペースト状活物質の硬さについて定量的に評価した。
1. Production of Paste Active Material for Negative Electrode A paste active material for negative electrode having various specifications described later is produced. And about the hardness of the paste-form active material for negative electrodes, the penetration degree is measured about each paste-form active material for negative electrodes using the penetration measuring apparatus of JIS standard (made by Kogai Co., Ltd.). Quantitatively evaluated.
２．制御弁式鉛蓄電池の作製
作製した負極用のペースト状活物質を、幅が１０８ｍｍ×長さが１２５ｍｍ × 厚みが２．２ｍｍの鉛−カルシウム合金製の格子体に充填し、４０℃、湿度９５％の大気中で２４時間熟成・乾燥をさせて未化成の負極板を作製した。一方、正極板としては、従来から使用しているものを用いた。
2. Production of Control Valve Lead Acid Battery The prepared paste-like active material for negative electrode is filled into a grid made of a lead-calcium alloy having a width of 108 mm × length of 125 mm × thickness of 2.2 mm, and 40 ° C. and humidity of 95 A non-formed negative electrode plate was produced by aging and drying for 24 hours in an atmospheric air. On the other hand, what was used conventionally was used as a positive electrode plate.
これらの負極板が６枚と正極板が５枚とを、ガラス繊維製のリテーナを介して積層し、溶接して極板群を組み立て、それをＡＢＳ製の電槽に組み込み、比重が１．３０（２０℃）の希硫酸電解液を注入する。その後、充電量が２５０％、化成時間が４８時間、周囲温度が２５℃の条件のもとで電槽化成をして、５０Ａｈ−２Ｖの制御弁式鉛蓄電池を製造した。 Six of these negative plates and five positive plates are laminated through a glass fiber retainer and welded to assemble an electrode plate group, which is assembled into an ABS battery case, and has a specific gravity of 1. 30 (20 ° C.) dilute sulfuric acid electrolyte is injected. Thereafter, the battery was formed under the conditions of a charge amount of 250%, a formation time of 48 hours, and an ambient temperature of 25 ° C. to produce a 50 Ah-2V control valve type lead storage battery.
３．制御弁式鉛蓄電池の初期試験及び寿命試験条件
製造した制御弁式鉛蓄電池は、５Ａ（０．１ＣＡ）で放電して、初期の放電容量を測定する（２５℃、放電終止電圧：１．８Ｖ）。初期の放電容量を測定した制御弁式鉛蓄電池は、３０℃で定格容量の７０％を放電し、その放電量の１０２％を充電するパターンでサイクル寿命試験を行った。６００サイクル経過後の制御弁式鉛蓄電池について、再び５Ａで放電をして放電容量（Ａｈ）を測定した（２５℃、放電終止電圧：１．８Ｖ）。そして、初期の放電容量（Ａｈ）と６００サイクル目の放電容量との比率（以下、容量比率（％）と呼ぶ。）を比較した。
3. Control valve type lead acid battery initial test and life test conditions The manufactured control valve type lead acid battery is discharged at 5 A (0.1 CA) and the initial discharge capacity is measured (25 ° C., final discharge voltage: 1.8 V). ). The control valve type lead storage battery whose initial discharge capacity was measured was subjected to a cycle life test in a pattern in which 70% of the rated capacity was discharged at 30 ° C. and 102% of the discharge capacity was charged. The control valve type lead storage battery after the elapse of 600 cycles was discharged again at 5 A, and the discharge capacity (Ah) was measured (25 ° C., final discharge voltage: 1.8 V). Then, the ratio of the initial discharge capacity (Ah) to the discharge capacity at the 600th cycle (hereinafter referred to as capacity ratio (%)) was compared.
（実施例１）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４ｍ２／ｇのファーネスブラックを０．３質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
(Example 1)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, a bulk density of 0.270 g / ml, and a specific surface area of 254 m 2 / g 300 g of diluted sulfuric acid having a furnace black of 0.3% by mass and a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste-like active material for a negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
（比較例１）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、嵩密度が０．１３０ｇ／ｍｌで、比表面積が６５ｍ２／ｇのアセチレンブラックを０．３質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（比較例２）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、嵩密度が０．１８７ｇ／ｍｌで、比表面積が１０２０ｍ２／ｇの活性炭を０．３質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（比較例３）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、嵩密度が０．１２２ｇ／ｍｌで、比表面積が１４７５ｍ２／ｇのファーネスブラックを０．３質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（比較例４）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、嵩密度が０．１３０ｇ／ｍｌで、比表面積が６５ｍ２／ｇのアセチレンブラックを２．０質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
(Comparative Example 1)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, a bulk density of 0.130 g / ml, and a specific surface area of 65 m 2 / g 300 g of dilute sulfuric acid having an acetylene black content of 0.3% by mass and a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste active material for a negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Comparative Example 2)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, a bulk density of 0.187 g / ml, and a specific surface area of 1020 m 2 / g 300 g of diluted sulfuric acid having an active carbon content of 0.3% by mass and a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste-like active material for a negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Comparative Example 3)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, a bulk density of 0.122 g / ml, and a specific surface area of 1475 m 2 / g 300 g of diluted sulfuric acid having a furnace black of 0.3% by mass and a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste-like active material for a negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Comparative Example 4)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, a bulk density of 0.130 g / ml, and a specific surface area of 65 m 2 / g 300 g of dilute sulfuric acid having a acetylene black of 2.0% by mass and a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste-like active material for a negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
上記した手法で寿命試験をした結果を表１に示す。表１より、本発明に係わる（実施例１）は（比較例１）および（比較例２）に比べて、カーボン添加量や針入度が同程度であるにもかかわらず、容量比率(％)を高くでき、サイクル性能が良好であった。また、（比較例３）のように同じファーネスブラックでも嵩密度、比表面積が異なると針入度が低下し、格子体に充填しにくくなり、寿命性能も劣ることがわかる。また、本発明に係わる（実施例１）は、（比較例４）のアセチレンブラックを２．０質量％添加した場合よりも優れた容量比率(％)を有しており、サイクル性能が良好であった。 Table 1 shows the result of the life test performed by the above-described method. Table 1 shows that (Example 1) according to the present invention has a capacity ratio (%) in comparison with (Comparative Example 1) and (Comparative Example 2), although the amount of carbon added and the penetration are similar. ) And the cycle performance was good. Further, it can be seen that, even in the same furnace black as in (Comparative Example 3), when the bulk density and the specific surface area are different, the penetration is lowered, it is difficult to fill the lattice body, and the life performance is inferior. In addition, (Example 1) according to the present invention has a capacity ratio (%) superior to that in the case of adding 2.0% by mass of acetylene black of (Comparative Example 4), and the cycle performance is good. there were.
（比較例５）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（実施例２）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、実施例１と同様の嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４ｍ２／ｇのファーネスブラックを０．１質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（実施例３）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、実施例１と同様の嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４gｍ２／ｇのファーネスブラックを０．２質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（実施例４）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、実施例１と同様の嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４ｍ２／ｇのファーネスブラックを０．５質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（実施例５）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、実施例１と同様の嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４ｍ２／ｇのファーネスブラックを１．０質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
（実施例６）
一酸化鉛を７０〜８０質量％含む鉛粉３ｋｇに、リグニン粉末を０．４質量％、硫酸バリウム粉末を１質量％、実施例１と同様の嵩密度が０．２７０ｇ／ｍｌで、比表面積が２５４ｍ２／ｇのファーネスブラックを１．５質量％、比重が１．２６の希硫酸を３００ｇ、水を２８０ｇ加えて混練し、負極用ペースト状活物質を作製した。この負極用のペースト状活物質を用いて、上記した手法で制御弁式鉛蓄電池を作製して寿命試験をした。
(Comparative Example 5)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, 300 g of diluted sulfuric acid having a specific gravity of 1.26, and 280 g of water are kneaded. Then, a paste active material for negative electrode was prepared. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Example 2)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, the same bulk density as in Example 1, 0.270 g / ml, and a specific surface area Was 254 m 2 / g of furnace black, 0.1 g%, specific gravity of 1.26 dilute sulfuric acid 300 g and water 280 g were added and kneaded to prepare a paste active material for negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Example 3)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, the same bulk density as in Example 1, 0.270 g / ml, and a specific surface area Was 254 gm 2 / g furnace black, 0.2 g%, 300 g of dilute sulfuric acid having a specific gravity of 1.26, and 280 g of water were added and kneaded to prepare a paste active material for negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
Example 4
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, the same bulk density as in Example 1, 0.270 g / ml, and a specific surface area Was 254 m 2 / g of furnace black, 0.5 g%, 300 g of dilute sulfuric acid having a specific gravity of 1.26, and 280 g of water were added and kneaded to prepare a paste active material for negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Example 5)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, the same bulk density as in Example 1, 0.270 g / ml, and a specific surface area Was 254 m 2 / g of furnace black, 1.0 g%, 300 g of diluted sulfuric acid having a specific gravity of 1.26, and 280 g of water were added and kneaded to prepare a paste active material for negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
(Example 6)
3 kg of lead powder containing 70 to 80% by mass of lead monoxide, 0.4% by mass of lignin powder, 1% by mass of barium sulfate powder, the same bulk density as in Example 1, 0.270 g / ml, and a specific surface area Of 254 m 2 / g of furnace black, 300 g of diluted sulfuric acid having a specific gravity of 1.26 and 280 g of water were added and kneaded to prepare a paste-like active material for negative electrode. Using the paste-like active material for the negative electrode, a control valve type lead-acid battery was produced by the above-described method and subjected to a life test.
上記の手法で寿命試験をした結果を表２に示す。表２より、ファーネスブラックの量が０．２質量％以上で容量比率（％）が大きくなり、０．３〜１．５質量％の添加では、ほとんど変化が認められないことがわかる。しかしながら、ファーネスブラック添加量の増加に伴い針入度が小さくなり、格子体への充填が困難になってくる。 Table 2 shows the result of the life test performed by the above method. From Table 2, it can be seen that the volume ratio (%) increases when the amount of furnace black is 0.2% by mass or more, and almost no change is observed when 0.3 to 1.5% by mass is added. However, as the amount of furnace black added increases, the penetration becomes smaller and it becomes difficult to fill the lattice.
なお、現在使用中のペースト状活物質の充填機の能力等から、ペーストの針入度は８０×１０−１ｍｍ以上が望ましい。したがって、ペースト状活物質の充填性と容量比率（サイクル寿命性能）とを考慮すると、ファーネスブラックの添加量は０．２〜１．０質量％が好ましい。 In addition, the penetration of the paste is desirably 80 × 10 −1 mm or more from the capability of the pasty active material filling machine currently in use. Therefore, considering the filling property and capacity ratio (cycle life performance) of the paste-like active material, the amount of furnace black added is preferably 0.2 to 1.0 mass%.
本発明は、ペースト式負極板を用い、サイクル用途に使用される制御弁式鉛蓄電池に利用することができる。
INDUSTRIAL APPLICATION This invention can be utilized for the control valve type lead acid battery used for a cycle use using a paste type negative electrode plate.
Claims (2)
前記ペースト状活物質には、嵩密度が０．２７０ｇ／ｍｌ以上であり、比表面積が２５０ｍ２／ｇ以上のファーネスブラックが含有されていることを特徴とする制御弁式鉛蓄電池。 In a valve-regulated lead-acid battery using a paste-type negative electrode plate prepared by filling a paste-form active material mainly composed of lead powder into a lead alloy current collector,
The control valve type lead-acid battery, wherein the pasty active material contains furnace black having a bulk density of 0.270 g / ml or more and a specific surface area of 250 m 2 / g or more.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004129165A JP2005310688A (en) | 2004-04-26 | 2004-04-26 | Control valve type lead acid battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004129165A JP2005310688A (en) | 2004-04-26 | 2004-04-26 | Control valve type lead acid battery |
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| JP2005310688A true JP2005310688A (en) | 2005-11-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008152955A (en) * | 2006-12-14 | 2008-07-03 | Shin Kobe Electric Mach Co Ltd | Lead acid battery |
| JP2015534709A (en) * | 2012-09-28 | 2015-12-03 | キャボット コーポレイションＣａｂｏｔ Ｃｏｒｐｏｒａｔｉｏｎ | Active material composition comprising high surface area carbon material |
| JP2020102359A (en) * | 2018-12-21 | 2020-07-02 | 株式会社Ｇｓユアサ | Lead acid battery |
| WO2021131033A1 (en) * | 2019-12-27 | 2021-07-01 | 昭和電工マテリアルズ株式会社 | Negative electrode material for lead acid storage batteries for system power stabilization or load leveling, and method for producing same |
-
2004
- 2004-04-26 JP JP2004129165A patent/JP2005310688A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008152955A (en) * | 2006-12-14 | 2008-07-03 | Shin Kobe Electric Mach Co Ltd | Lead acid battery |
| JP2015534709A (en) * | 2012-09-28 | 2015-12-03 | キャボット コーポレイションＣａｂｏｔ Ｃｏｒｐｏｒａｔｉｏｎ | Active material composition comprising high surface area carbon material |
| JP2020102359A (en) * | 2018-12-21 | 2020-07-02 | 株式会社Ｇｓユアサ | Lead acid battery |
| JP7127529B2 (en) | 2018-12-21 | 2022-08-30 | 株式会社Ｇｓユアサ | lead acid battery |
| WO2021131033A1 (en) * | 2019-12-27 | 2021-07-01 | 昭和電工マテリアルズ株式会社 | Negative electrode material for lead acid storage batteries for system power stabilization or load leveling, and method for producing same |
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