JPH08180857A - Electrode plate for lead-acid battery - Google Patents
Electrode plate for lead-acid batteryInfo
- Publication number
- JPH08180857A JPH08180857A JP6322771A JP32277194A JPH08180857A JP H08180857 A JPH08180857 A JP H08180857A JP 6322771 A JP6322771 A JP 6322771A JP 32277194 A JP32277194 A JP 32277194A JP H08180857 A JPH08180857 A JP H08180857A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- active material
- polyvinyl alcohol
- battery
- material layer
- 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- Withdrawn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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、鉛蓄電池用極板に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead storage battery electrode plate.
【0002】[0002]
【従来の技術】密閉形鉛蓄電池等の鉛蓄電池の高容量化
を図るために、活物質ペースト中の水及び硫酸の混合割
合を増やして、活物質層の表面部の多孔度を高めて極板
の活物質利用率を高めることが知られている。しかしな
がら、水及び硫酸の混合割合が増えると活物質ペースト
の粘度が低下して、活物質ペーストを集電体(格子体)
に充填できなくなる。そのため、このような方法で活物
質の多孔度を高めるには限界があった。そこで、活物質
中にカーボン等の導電性物質を添加して極板の活物質利
用率を高めることが提案された。しかしながら、活物質
中にカーボンを添加した密閉形鉛蓄電池に急速充電で充
放電サイクルを繰り返すと、カーボンが酸化される。ま
た、活物質の密度が小さいと、導電性が低くなり、充電
が入り難くなる。そのため、活物質は微細化し、電池容
量が低下するという問題があった。そこで、ポリフロン
等の繊維状物質をバインダーとして活物質中に添加し
て、活物質の強度を図り、活物質の脱落防止及び微細化
抑制を図ることが考えられた。しかしながら、このよう
な繊維状物質は撥水性を有しているため、極板の活物質
に対する電解液のぬれ性が低下して、電池の容量が低く
なる。そこで、特開平6−111813号公報に示すよ
うに、活物質層中にセルロース繊維からなる水溶性の造
孔剤を添加することが提案された。この種の極板では、
電池の化成中に極板表面部の多孔部に電解液が浸入し、
極板表面部にあるセルロース繊維が電解液に溶出する。
そのため、セルロース繊維が存在した部分に空隙部がで
きると共に極板表面部の活物質粒子が相互に凝縮して、
極板表面部の多孔部は体積が増大する。しかも電池の充
放電により、極板内部のセルロース繊維が徐々に溶けて
極板内部の多孔度が徐々に高くなるため、電池の充放電
反応部が局部的に集中することがない。そのため、この
種の極板を用いると、電池の容量を低下させることな
く、電池のサイクル寿命を延ばすことができる。2. Description of the Related Art In order to increase the capacity of lead-acid batteries such as sealed lead-acid batteries, the mixing ratio of water and sulfuric acid in the active material paste is increased to increase the porosity of the surface of the active material layer and increase the porosity. It is known to increase the active material utilization rate of the board. However, when the mixing ratio of water and sulfuric acid increases, the viscosity of the active material paste decreases, and the active material paste is collected as a current collector (lattice).
Can no longer be filled. Therefore, there is a limit to increase the porosity of the active material by such a method. Therefore, it has been proposed to add a conductive material such as carbon to the active material to increase the utilization rate of the active material in the electrode plate. However, when a sealed lead-acid battery in which carbon is added to the active material is repeatedly charged and discharged by rapid charging, carbon is oxidized. In addition, when the density of the active material is low, the conductivity becomes low and charging becomes difficult. Therefore, there is a problem that the active material is miniaturized and the battery capacity is reduced. Therefore, it has been considered to add a fibrous substance such as polyflon as a binder to the active material so as to increase the strength of the active material and prevent the active material from falling off and suppressing miniaturization. However, since such a fibrous substance has water repellency, the wettability of the electrolytic solution with respect to the active material of the electrode plate is reduced, and the capacity of the battery is reduced. Therefore, as disclosed in JP-A-6-111813, it has been proposed to add a water-soluble pore forming agent composed of cellulose fibers to the active material layer. With this kind of plate,
During the formation of the battery, the electrolytic solution penetrates into the porous part on the surface of the electrode plate,
Cellulose fibers on the surface of the electrode plate are eluted into the electrolytic solution.
Therefore, the active material particles on the surface of the electrode plate are condensed with each other while forming a void in the portion where the cellulose fibers were present,
The volume of the porous portion on the surface of the electrode plate increases. Moreover, since the cellulosic fibers inside the electrode plate are gradually melted by the charge and discharge of the battery and the porosity inside the electrode plate is gradually increased, the charge and discharge reaction part of the battery is not locally concentrated. Therefore, when this type of electrode plate is used, the cycle life of the battery can be extended without reducing the capacity of the battery.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、活物質
層中にセルロース繊維を添加しても、活物質相互の結合
力を十分に高めることができず、活物質層の強度を高め
るには限界があった。However, even if cellulose fibers are added to the active material layer, the binding force between the active materials cannot be sufficiently increased, and there is a limit to increase the strength of the active material layer. there were.
【0004】本発明の目的は、活物質層の強度を高くし
て、しかも活物質層表面部の多孔度を高くできる鉛蓄電
池用極板を提供することにある。An object of the present invention is to provide an electrode plate for a lead storage battery in which the strength of the active material layer can be increased and the porosity of the surface portion of the active material layer can be increased.
【0005】[0005]
【課題を解決するための手段】本発明は、活物質層中に
水溶性の有機合成樹脂からなる水溶性バインダーを分散
させる。According to the present invention, a water-soluble binder made of a water-soluble organic synthetic resin is dispersed in an active material layer.
【0006】水溶性バインダーとしては、ポリビニルア
ルコールを用い、このポリビニルアルコールの活物質層
中の活物質に対する割合は5〜10体積%とするのが好
ましい。ポリビニルアルコールは新水性が高いので、極
板内部の微細孔までガス溜まりを発生させることなく、
硫酸を供給できる。ポリビニルアルコールは一種の界面
活性剤のような作用がある。通常の界面活性剤では正極
板で酸化、分解されるため、充電時に徐々に消滅するた
め、長時間持続しない。これに対してポリビニルアルコ
ールは作用の持続時間が長いという利点がある。また、
ポリビニルアルコールの活物質に対する割合が5体積%
を下回ると、活物質の多孔度を十分に高めることができ
ない上、活物質強度を十分に高めることができない。ま
たポリビニルアルコールの活物質に対する割合が10体
積%を超えると、活物質層内の導電性が低下する。As the water-soluble binder, polyvinyl alcohol is used, and the ratio of this polyvinyl alcohol to the active material in the active material layer is preferably 5 to 10% by volume. Since polyvinyl alcohol has a high degree of fresh water, it does not generate gas accumulation even in the fine pores inside the electrode plate.
Can supply sulfuric acid. Polyvinyl alcohol acts as a kind of surfactant. Since a normal surfactant is oxidized and decomposed on the positive electrode plate, it gradually disappears during charging and does not last for a long time. On the other hand, polyvinyl alcohol has an advantage that the duration of action is long. Also,
5% by volume of polyvinyl alcohol to active material
When it is below the range, the porosity of the active material cannot be sufficiently increased and the strength of the active material cannot be sufficiently increased. Further, when the ratio of polyvinyl alcohol to the active material exceeds 10% by volume, the conductivity within the active material layer decreases.
【0007】[0007]
【作用】本発明のように、水溶性の有機合成樹脂からな
る水溶性バインダーを活物質層中に分散させると、電池
の化成中に極板表面部の多孔部に電解液が浸入し、極板
表面部にある水溶性バインダーが電解液に溶出する。そ
のため、水溶性バインダーが存在した部分に空隙部がで
きると共に極板表面部の活物質粒子が相互に凝縮して、
極板表面部の多孔部は体積が増大する。このように電池
の化成中に電解液に溶出する極板表面部の水溶性有機合
成樹脂は造孔剤の役割を果たして、極板の表面部の多孔
度を高める。また有機合成樹脂はバインダーとしての結
着力が強いため、極板内部に残存している(電解液に溶
出していない)有機合成樹脂は活物質粒子を相互に強固
に結着して活物質層内部の強度を高める。したがって、
本発明の極板を用いれば、電池の容量を高めて、サイク
ル寿命を延ばすことができる。When a water-soluble binder made of a water-soluble organic synthetic resin is dispersed in the active material layer as in the present invention, the electrolytic solution penetrates into the porous portion of the electrode plate surface during the formation of the battery, and The water-soluble binder on the plate surface elutes in the electrolytic solution. Therefore, a void is formed in the portion where the water-soluble binder was present, and the active material particles on the surface of the electrode plate are condensed with each other,
The volume of the porous portion on the surface of the electrode plate increases. In this way, the water-soluble organic synthetic resin on the surface of the electrode plate, which elutes in the electrolytic solution during the formation of the battery, serves as a pore-forming agent to increase the porosity of the surface of the electrode plate. In addition, since the organic synthetic resin has a strong binding force as a binder, the organic synthetic resin remaining inside the electrode plate (not eluted in the electrolytic solution) firmly binds the active material particles to each other to form the active material layer. Increase the internal strength. Therefore,
By using the electrode plate of the present invention, the capacity of the battery can be increased and the cycle life can be extended.
【0008】[0008]
【実施例】鉛蓄電池用正極板に適用した本発明の実施例
を図面を参照して詳細に説明する。Embodiments of the present invention applied to a positive electrode plate for a lead storage battery will be described in detail with reference to the drawings.
【0009】(実施例1)本実施例の正極板は次のよう
にして製造した。まず一酸化鉛(PbO)74重量%と
鉛11重量%と比重1.30(20℃)の希硫酸5重量
%と水10重量%との混練物に重合度500(粒度約
0.5μm)のポリビニルアルコール(PVA)からな
る水溶性バインダー0.1重量%を添加して更に混練し
て活物質ペーストを作った。なおポリビニルアルコール
の添加量は活物質層形成後において、活物質層中の活物
質に対して10体積%となる割合である。またポリビニ
ルアルコールの重合度は1000以下が好ましい。重合
度が1000を超えるとポリビニルアルコールの溶解度
が低下する。次にこの活物質ペースト150gを格子体
からなる集電体に充填した後に、通常の熟成、乾燥を行
ってペースト式活物質からなる活物質層を有する未化成
の本実施例の正極板を完成した。Example 1 The positive electrode plate of this example was manufactured as follows. First, a kneaded mixture of 74% by weight of lead monoxide (PbO), 11% by weight of lead, 5% by weight of dilute sulfuric acid having a specific gravity of 1.30 (20 ° C.) and 10% by weight of water has a polymerization degree of 500 (particle size: about 0.5 μm). 0.1% by weight of a water-soluble binder composed of polyvinyl alcohol (PVA) was added and further kneaded to prepare an active material paste. The amount of polyvinyl alcohol added is 10% by volume based on the active material in the active material layer after the active material layer is formed. The degree of polymerization of polyvinyl alcohol is preferably 1000 or less. When the degree of polymerization exceeds 1000, the solubility of polyvinyl alcohol decreases. Next, 150 g of this active material paste is filled in a current collector made of a lattice, and then ordinary aging and drying are carried out to complete the unformed positive electrode plate of this embodiment having an active material layer made of a paste type active material. did.
【0010】図1は本実施例の正極板を比重1.05
(20℃)の40℃の希硫酸中に浸漬して、課電量25
0%の電気量で40時間の化成を行った後の概略断面を
示す図である。本図に示すように化成後において、極板
表面部のポリビニルアルコール1は電解質に溶出し極板
表面部の活物質粒子2は相互に凝集するため、極板表面
部の多孔度は極板内部に比べて大幅に高くなる。そし
て、極板内部に残留したポリビニルアルコール1は活物
質粒子2を相互に結着する。FIG. 1 shows the positive plate of this embodiment having a specific gravity of 1.05.
Immerse in dilute sulfuric acid (40 ℃) (20 ℃)
It is a figure which shows the schematic cross section after 40-hour chemical conversion with 0% of electricity. As shown in the figure, after the formation, since the polyvinyl alcohol 1 on the surface of the electrode plate is eluted into the electrolyte and the active material particles 2 on the surface of the electrode plate aggregate with each other, the porosity of the surface of the electrode plate is Will be significantly higher than. The polyvinyl alcohol 1 remaining inside the electrode plate binds the active material particles 2 to each other.
【0011】(実施例2)本実施例の正極板は、ポリビ
ニルアルコールの活物質に対する添加量を5体積%と
し、その他は実施例1と同じ方法で製造した。Example 2 The positive electrode plate of this example was manufactured by the same method as in Example 1 except that the amount of polyvinyl alcohol added to the active material was 5% by volume.
【0012】(実施例3)本実施例の正極板は、ポリビ
ニルアルコールの活物質に対する添加量を12体積%と
し、その他は実施例1と同じ方法で製造した。Example 3 The positive electrode plate of this example was manufactured by the same method as in Example 1 except that the amount of polyvinyl alcohol added to the active material was 12% by volume.
【0013】(従来例)本従来例の正極板は活物質ペー
スト中にポリビニルアルコールを添加せず、その他は本
実施例の正極板と同じ構成を有している。(Conventional Example) The positive electrode plate of this conventional example has the same structure as the positive electrode plate of this embodiment except that polyvinyl alcohol is not added to the active material paste.
【0014】次に上記実施例1の正極板と従来例の正極
板とを公知のペースト式負極板とそれぞれ組み合わせて
2V−10Ahの電池を作り試験を行った。正極板は負
極板に比べて細孔径が小さいために、ガス溜まりが発生
しやすい。そのため、硫酸の浸透性が低下して活物質利
用率が低下する。しかしながら、本発明を正極板に適用
すると、活物質利用率及び高率放電特性を向上させるこ
とができる。図2は、極板化成後における、実施例1の
極板と従来例の極板との細孔径とその細孔径を有する細
孔の体積割合との関係を示す図である。本図より、実施
例1の極板の細孔径は従来例の極板の細孔径よりも大き
いのが分る。そして、各電池を10Aで放電して各電池
の放電持続時間と端子電圧との関係を調べた。図3はそ
の測定結果を示している。本図より、実施例1の正極板
を用いると電池の放電時間が長くなるのが分る。これは
実施例1の正極板は活物質層の表面部の多孔度が高く、
電解液の極板内への拡散が容易になったためである。Next, the positive electrode plate of Example 1 and the positive electrode plate of the conventional example were respectively combined with a known paste type negative electrode plate to make a battery of 2V-10Ah, and a test was conducted. Since the positive electrode plate has a smaller pore size than the negative electrode plate, gas accumulation is likely to occur. Therefore, the permeability of sulfuric acid is lowered, and the utilization rate of the active material is lowered. However, when the present invention is applied to the positive electrode plate, the active material utilization rate and the high rate discharge characteristics can be improved. FIG. 2 is a diagram showing the relationship between the pore size of the electrode plate of Example 1 and the electrode plate of the conventional example and the volume ratio of the pores having the pore size after the formation of the electrode plate. From this figure, it can be seen that the pore size of the electrode plate of Example 1 is larger than the pore size of the electrode plate of the conventional example. Then, each battery was discharged at 10 A, and the relationship between the discharge duration and the terminal voltage of each battery was examined. FIG. 3 shows the measurement result. From this figure, it can be seen that when the positive electrode plate of Example 1 is used, the discharge time of the battery becomes longer. This is because the positive electrode plate of Example 1 has a high porosity in the surface portion of the active material layer,
This is because diffusion of the electrolytic solution into the electrode plate is facilitated.
【0015】次に上記各電池に2.5A(0.25C)
で2時間放電した後に、1A(0.1C)で6時間充電
を繰り返す充放電サイクルで行い、各電池のサイクル寿
命特性を調べた。図4はその測定結果を示している。本
図より、ポリビニルアルコールの活物質に対する添加量
を5〜10体積%とすると、電池のサイクル寿命を延ば
せるのが分る。表1は各電池の極板の100サイクル毎
における断面を模式的に示した図である。Next, 2.5 A (0.25 C) is applied to each of the above batteries.
After 2 hours of discharge, the battery was repeatedly charged at 1 A (0.1 C) for 6 hours to perform a charge-discharge cycle, and the cycle life characteristics of each battery were examined. FIG. 4 shows the measurement result. From this figure, it can be seen that the cycle life of the battery can be extended by setting the addition amount of polyvinyl alcohol to the active material to be 5 to 10% by volume. Table 1 is a diagram schematically showing a cross section of the electrode plate of each battery in every 100 cycles.
【0016】[0016]
【表1】 本表より各極板とも充放電サイクルが進むにつれて、極
板表面の硫酸鉛が大きくなる(硫酸鉛化が進む)のが分
る。従来例では極板表面部の多孔度が小さいため、20
0サイクルで極板表面の細孔を塞ぐように硫酸鉛化が進
むのが分る。これにより従来例では、極板内部に電解液
が供給され難くなり、容量が出なくなる。これに対し
て、実施例1〜3の極板では、電池の充放電の繰り返し
により、ポリビニルアルコールが徐々に溶解していくた
め、電池の充放電反応は局部的に集中せず、極板内部ま
で均一に反応し、表面の硫酸鉛化が起こり難い。また表
面が硫酸鉛化したとしても、極板表面部の細孔が十分に
大きいので、極板の表面の細孔は閉塞し難い。しかも極
板内部に残存するポリビニルアルコールは硫酸を引き寄
せるため、電池の容量は低下し難い。しかしながら、ポ
リビニルアルコールの添加量が多くなると、活物質粒子
間の電子伝導性が阻害されて、電池反応が部分的に集中
するため、逆効果となる。[Table 1] From this table, it can be seen that the lead sulfate on the surface of the electrode plate increases (lead sulfate conversion progresses) as the charge and discharge cycle progresses for each electrode plate. In the conventional example, the porosity of the surface of the electrode plate is small,
It can be seen that lead sulfate proceeds so as to block the pores on the surface of the electrode plate in 0 cycle. As a result, in the conventional example, it becomes difficult for the electrolytic solution to be supplied to the inside of the electrode plate, and the capacity cannot be obtained. On the other hand, in the electrode plates of Examples 1 to 3, since polyvinyl alcohol gradually dissolves due to repeated charging / discharging of the battery, the charging / discharging reaction of the battery is not locally concentrated, and Reacts evenly, and lead sulphate on the surface is unlikely to occur. Even if the surface is converted to lead sulfate, the pores on the surface of the electrode plate are sufficiently large, so that the pores on the surface of the electrode plate are difficult to close. Moreover, since the polyvinyl alcohol remaining inside the electrode plate attracts sulfuric acid, the capacity of the battery does not easily decrease. However, when the amount of polyvinyl alcohol added is large, the electron conductivity between the active material particles is hindered and the battery reaction is partially concentrated, which has the opposite effect.
【0017】以下、明細書に記載した複数の発明の中で
いくつかの発明についてその構成を示す。The structure of some of the inventions described in the specification will be described below.
【0018】(1) ペースト式活物質からなる活物質
層中に水溶性の有機合成樹脂からなる水溶性バインダー
が分散していることを特徴とする鉛蓄電池用正極板。(1) A positive electrode plate for a lead storage battery, wherein a water-soluble binder made of a water-soluble organic synthetic resin is dispersed in an active material layer made of a paste type active material.
【0019】(2) 前記水溶性バインダーとして、重
合度1000以下のポリビニルアルコールを用い、前記
ポリビニルアルコールの前記活物質層中の活物質に対す
る割合を5〜10体積%とすることを特徴とする上記
(1)に記載の鉛蓄電池用正極板。(2) As the water-soluble binder, polyvinyl alcohol having a degree of polymerization of 1000 or less is used, and the ratio of the polyvinyl alcohol to the active material in the active material layer is 5 to 10% by volume. The positive electrode plate for a lead storage battery according to (1).
【0020】(3) 一酸化鉛と鉛と希硫酸と水と重合
度1000以下のポリビニルアルコールからなる水溶性
バインダーとを混練して活物質ペーストを格子体からな
る集電体に充填した後に、熟成、乾燥を行い活物質に対
して5〜10体積%のポリビニルアルコールが含有され
た鉛蓄電池用極板を製造することを特徴とする鉛蓄電池
用正極板の製造方法。(3) Lead monoxide, lead, dilute sulfuric acid, water, and a water-soluble binder made of polyvinyl alcohol having a degree of polymerization of 1000 or less are kneaded to fill the active material paste in a current collector made of a lattice. A method for producing a positive electrode plate for a lead storage battery, which comprises aging and drying to produce a lead acid battery electrode plate containing 5 to 10% by volume of polyvinyl alcohol with respect to an active material.
【0021】[0021]
【発明の効果】本発明によれば、水溶性の有機合成樹脂
からなる水溶性バインダーを活物質層中に分散させるの
で、電池の化成中に電解液に溶出する極板表面部の水溶
性有機合成樹脂は造孔剤の役割を果たして、極板の表面
部の多孔度を高める。そして、極板内部に残存している
(電解液に溶出していない)有機合成樹脂により活物質
層内部の強度が高くなる。したがって、本発明の極板を
用いれば、電池の容量を高めて、サイクル寿命を延ばす
ことができる。According to the present invention, since a water-soluble binder made of a water-soluble organic synthetic resin is dispersed in the active material layer, the water-soluble organic compound on the surface of the electrode plate which is eluted into the electrolytic solution during formation of the battery. The synthetic resin plays the role of a pore-forming agent and increases the porosity of the surface portion of the electrode plate. Then, the strength of the inside of the active material layer is increased by the organic synthetic resin remaining inside the electrode plate (not eluted in the electrolytic solution). Therefore, by using the electrode plate of the present invention, the capacity of the battery can be increased and the cycle life can be extended.
【図1】 本実施例の極板の化成後の概略断面図であ
る。FIG. 1 is a schematic cross-sectional view after formation of an electrode plate of this embodiment.
【図2】 試験に用いた極板の極板化成後における、細
孔径と、その細孔径を有する細孔の体積との関係を示す
図である。FIG. 2 is a diagram showing the relationship between the pore size and the volume of the pores having the pore size after the electrode plate formation of the electrode plate used in the test.
【図3】 試験に用いた電池の放電持続時間と端子電圧
との関係を示す図である。FIG. 3 is a diagram showing the relationship between the discharge duration and the terminal voltage of the battery used in the test.
【図4】 試験に用いた電池のサイクル寿命特性を示す
図である。FIG. 4 is a diagram showing cycle life characteristics of a battery used in a test.
1 ポリビニルアルコール 2 活物質粒子 1 polyvinyl alcohol 2 active material particles
Claims (2)
なる水溶性バインダーが分散していることを特徴とする
鉛蓄電池用極板。1. An electrode plate for a lead storage battery, wherein a water-soluble binder made of a water-soluble organic synthetic resin is dispersed in the active material layer.
ルアルコールを用い、前記ポリビニルアルコールの前記
活物質層中の活物質に対する割合を5〜10体積%とす
ることを特徴とする請求項1に記載の鉛蓄電池用極板。2. The lead according to claim 1, wherein polyvinyl alcohol is used as the water-soluble binder, and the ratio of the polyvinyl alcohol to the active material in the active material layer is 5 to 10% by volume. An electrode plate for storage batteries.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6322771A JPH08180857A (en) | 1994-12-26 | 1994-12-26 | Electrode plate for lead-acid battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6322771A JPH08180857A (en) | 1994-12-26 | 1994-12-26 | Electrode plate for lead-acid battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08180857A true JPH08180857A (en) | 1996-07-12 |
Family
ID=18147464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6322771A Withdrawn JPH08180857A (en) | 1994-12-26 | 1994-12-26 | Electrode plate for lead-acid battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08180857A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019059501A1 (en) * | 2017-09-25 | 2019-03-28 | 주식회사 에너지플래닛 | Lead-acid battery electrode and lead-acid-based storage battery system comprising same |
KR20190096320A (en) * | 2017-09-25 | 2019-08-19 | (주)에너지플래닛 | Electrode for lead acid battery and lead acid battery system comprising the electrode |
-
1994
- 1994-12-26 JP JP6322771A patent/JPH08180857A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019059501A1 (en) * | 2017-09-25 | 2019-03-28 | 주식회사 에너지플래닛 | Lead-acid battery electrode and lead-acid-based storage battery system comprising same |
KR20190096320A (en) * | 2017-09-25 | 2019-08-19 | (주)에너지플래닛 | Electrode for lead acid battery and lead acid battery system comprising the electrode |
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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: 20020305 |