JP2003178754A - Plate for lead-acid storage battery, and manufacturing method of the same - Google Patents
Plate for lead-acid storage battery, and manufacturing method of the sameInfo
- Publication number
- JP2003178754A JP2003178754A JP2001373945A JP2001373945A JP2003178754A JP 2003178754 A JP2003178754 A JP 2003178754A JP 2001373945 A JP2001373945 A JP 2001373945A JP 2001373945 A JP2001373945 A JP 2001373945A JP 2003178754 A JP2003178754 A JP 2003178754A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- material layer
- current collector
- lead
- electrode plate
- 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.)
- Pending
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]
【発明の属する技術分野】本発明は、鉛蓄電池用極板及
びその製造方法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-acid battery electrode plate and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来の鉛蓄電池では、集電体（格子体）
の両面の活物質層の厚さが異なることが多い。これは、
集電体の片面側からペースト状活物質を充填するため
で、活物質層の充填面側が厚く、反対側がそれより薄く
なっている。2. Description of the Related Art In a conventional lead-acid battery, a current collector (grid body) is used.
In many cases, the thickness of the active material layers on both sides of the is different. this is,
Since the paste-like active material is filled from one surface side of the current collector, the filling surface side of the active material layer is thick and the opposite side is thinner.
【０００３】[0003]
【発明が解決しようとする課題】このような極板では、
鉛蓄電池の初充電（化成）の際、集電体側から活物質層
の厚さ方向ヘ充電（化成）が進行するため、集電体の両
面で活物質層の厚さが異なっていると、集電体の両面の
活物質層の充電は同一時間内において同様に進まない。
また、充電は集電体の近傍から進むため、集電体から遠
い位置にある未化成活物質には、電気伝導性の小さいよ
り集電体近傍の未化活物質に阻害されて、充電が入りに
くい。このため、集電体の両面で活物質層の全体に充電
をするには、効率が悪く、より多くの時間と、電気量を
要する問題点があった。また、鉛蓄電池用の正極板にお
いては、集電体の一方の面の活物質層の充電が進行して
二酸化鉛の色である茶色を呈するが、もう一方の面の活
物質層では充電の進行していない硫酸鉛の色である白色
を呈する問題点があった。SUMMARY OF THE INVENTION In such an electrode plate,
When the lead acid battery is initially charged (formation), charging (formation) progresses from the side of the current collector toward the thickness direction of the active material layer, so if the thickness of the active material layer is different on both sides of the current collector, The charging of the active material layers on both sides of the current collector does not proceed within the same time.
Further, since charging proceeds from the vicinity of the current collector, the unactivated active material located at a position far from the current collector is blocked by the unactivated active material near the current collector, which has a lower electric conductivity, and the charging is prevented. It is hard to enter. Therefore, there is a problem that charging the entire active material layer on both sides of the current collector is inefficient and requires more time and electricity. Further, in the positive electrode plate for a lead-acid battery, charging of the active material layer on one surface of the current collector progresses to exhibit a brown color which is the color of lead dioxide, but the active material layer on the other surface of the current collector is charged. There has been a problem that white color, which is the color of lead sulfate that has not progressed, is exhibited.
【０００４】これとは別に、導電性物質を活物質層の全
体に均一に添加する鉛蓄電池用極板及びその製造方法も
あるが、この場合には、電池使用中に活物質同士の結合
力が低下し、活物質の脱落や、これによりもたらされる
早期容量の低下という問題が発生する問題点があった。Apart from this, there is also an electrode plate for a lead storage battery in which a conductive material is uniformly added to the entire active material layer and a method for producing the same, but in this case, the binding force between the active materials during the use of the battery. However, there is a problem in that the active material falls off and the resulting early capacity decrease occurs.
【０００５】本発明の目的は、集電体の両面の活物質層
の厚さの違いによる充電不均一さのない鉛蓄電池用極板
及びその製造方法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 which does not have uneven charging due to a difference in thickness of active material layers on both sides of a current collector, and a method for manufacturing the same.
【０００６】また本発明の他の目的は、導電性物質を化
成効率向上のために、最も有効な部分にのみ添加するこ
とで、活物質能力を低下させない鉛蓄電池用極板及びそ
の製造方法を提供することにある。Another object of the present invention is to provide an electrode plate for a lead storage battery and a method for producing the same, in which a conductive material is added only to the most effective portion in order to improve the conversion efficiency so as not to lower the active material capacity. To provide.
【０００７】[0007]
【課題を解決するための手段】本発明は、集電体の両面
にペースト状活物質層が存在し、活物質層の厚みが極板
の両面で異なる鉛蓄電池用極板を対象とする。The present invention is directed to a lead-acid battery electrode plate in which a paste-like active material layer is present on both sides of a current collector and the thickness of the active material layer is different on both sides of the electrode plate.
【０００８】本発明に係る鉛蓄電池用極板では、活物質
層の厚い側の面の表面側に導電性物質が偏在している。In the lead-acid battery electrode plate according to the present invention, the conductive material is unevenly distributed on the surface side of the thick surface of the active material layer.
【０００９】鉛蓄電池の初充電（化成）では、集電体の
近傍より充電されていく。集電体の両面の活物質層の厚
さが異なる鉛蓄電池用極板では、集電体からの厚みが厚
い方の活物質層の表面側に導電性物質が偏在している
と、集電体の両面の活物質層の初充電の入り方がほぼ同
じになり、集電体の両面の活物質層の厚さの違いによる
充電不均一さを回避することができる。In the initial charging (formation) of the lead storage battery, the lead storage battery is charged near the current collector. In a lead-acid battery electrode plate in which the thicknesses of the active material layers on both sides of the current collector are different, if the conductive material is unevenly distributed on the surface side of the active material layer that is thicker from the current collector, The initial charge of the active material layers on both sides of the body is almost the same, and it is possible to avoid uneven charging due to the difference in thickness of the active material layers on both sides of the current collector.
【００１０】この場合、導電性物質は活物質層の充填面
の表面側に偏在させる。活物質層の充填面側は反対側よ
り活物質層の厚さが厚いため、充填面の活物質層の表面
側に導電性物質を偏在させると、活物質層の厚い側の面
の表面側に導電性物質を偏在させることができる。In this case, the conductive material is unevenly distributed on the surface side of the filling surface of the active material layer. Since the thickness of the active material layer on the filling surface side of the active material layer is thicker than that on the opposite side, uneven distribution of the conductive material on the surface side of the active material layer on the filling surface causes the surface side of the surface on the thick side of the active material layer. A conductive substance can be unevenly distributed.
【００１１】また、本発明は、集電体の両面にペースト
状活物質を充填し、集電体の両面の活物質層の表面に希
硫酸を含浸させる鉛蓄電池用極板の製造方法を対象とす
る。Further, the present invention is directed to a method of manufacturing a lead storage battery electrode plate in which both surfaces of a current collector are filled with a paste-like active material and the surfaces of the active material layers on both surfaces of the current collector are impregnated with dilute sulfuric acid. And
【００１２】本発明に係る鉛蓄電池用極板の製造法で
は、集電体の両面にペースト状活物質を充填した後に、
活物質層の厚い側の面の表面側に導電性物質を添加し、
該活物質層の表面を加圧する。In the method for manufacturing a lead-acid battery electrode plate according to the present invention, after filling both surfaces of the current collector with the paste-like active material,
Add a conductive material to the surface side of the thick side of the active material layer,
The surface of the active material layer is pressed.
【００１３】このようにすると、集電体からの厚みが厚
い方の活物質層の表面側に導電性物質を偏在させること
ができ、このため集電体の両面の活物質層の初充電の入
り方がほぼ同じになり、集電体の両面の活物質層の厚さ
の違いによる充電不均一さを回避することができる。こ
の際に、活物質層の厚い側の面の表面側に導電性物質を
添加し、該活物質層の表面を加圧すると、導電性物質が
活物質層内に押し込まれ、容易に活物質層の表面側に導
電性物質を偏在させることができる。[0013] By doing so, the conductive material can be unevenly distributed on the surface side of the active material layer having a larger thickness from the current collector, so that the active material layers on both sides of the current collector can be charged for the first time. The way of entering becomes almost the same, and it is possible to avoid uneven charging due to the difference in thickness of the active material layers on both sides of the current collector. At this time, when a conductive material is added to the surface side of the thick side surface of the active material layer and the surface of the active material layer is pressed, the conductive material is pushed into the active material layer and the active material is easily formed. A conductive substance can be unevenly distributed on the surface side of the layer.
【００１４】この場合、導電性物質は活物質層の厚い側
の面の表面に振り掛けることが好ましい。このようにす
ると、活物質層の厚い側の面の表面側に導電性物質を容
易に添加することができる。In this case, the conductive material is preferably sprinkled on the surface of the active material layer on the thick side. By doing so, the conductive material can be easily added to the surface side of the thick surface of the active material layer.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施の形態を、比
較例と対比して説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in comparison with comparative examples.
【００１６】（比較例１）比較例１の鉛蓄電池は、次の
ようにして製造した。最初に負極板を作った。まず、合
金組成がＰｂ−０．０８％Ｃａ−０．８％Ｓｎからなる
格子体からなる集電体を作成した。次に、鉛粉と該鉛粉
に対して１３質量％の希硫酸（比重１．２６：２０℃）
と、該鉛粉に対して１２質量％の水とを混練して負極活
物質ペーストを作った。この負極活物質ペースト７３．
０ｇを、集電体の両面に片側から充填して該集電体の両
面に活物質層を形成してから、温度５０℃、湿度９５％
中に１８時間放置して熟成した後に、温度２５℃、湿度
４０％中に２時間放置し、乾燥して未化成負極板を作っ
た。(Comparative Example 1) The lead acid battery of Comparative Example 1 was manufactured as follows. First, I made the negative plate. First, a current collector made of a lattice having an alloy composition of Pb-0.08% Ca-0.8% Sn was prepared. Next, lead powder and 13 mass% diluted sulfuric acid with respect to the lead powder (specific gravity 1.26: 20 ° C.)
And 12 mass% of water with respect to the lead powder were kneaded to prepare a negative electrode active material paste. This negative electrode active material paste 73.
After filling 0 g on both sides of the current collector from one side to form active material layers on both sides of the current collector, the temperature was 50 ° C. and the humidity was 95%.
After aging for 18 hours in the medium, the mixture was left for 2 hours in a temperature of 25 ° C. and a humidity of 40% and dried to prepare an unformed negative electrode plate.
【００１７】次に、正極板を作った。まず、合金組成が
Ｐｂ−０．０４％Ｃａ−１．０％Ｓｎからなるエキスパ
ンド格子体からなる集電体を作成した。次に、鉛粉と該
鉛粉に対して１３質量％の希硫酸（比重１．２６：２０
℃）と、該鉛粉に対して１２質量％の水とを混練して正
極活物質ペーストを作った。この正極活物質ペースト８
５．５ｇを、平面に据付けたエキスパンド格子体からな
る集電体に、その上面より充填して該集電体の両面に活
物質層を形成した。この未化成活物質層を比重１．０６
０の希硫酸に浸漬して表面に希硫酸を含浸させた後に、
表面をガスバーナーであぶり、活物質層を乾燥させた。
この後、温度５０℃、湿度９５％中に１８時間放置して
熟成した後に、温度２５℃、湿度４０％中に２時間放置
し、乾燥して未化成正極板を作った。Next, a positive electrode plate was prepared. First, a current collector made of an expanded lattice having an alloy composition of Pb-0.04% Ca-1.0% Sn was prepared. Next, lead powder and 13 mass% diluted sulfuric acid with respect to the lead powder (specific gravity 1.26: 20).
C.) and 12 mass% of water with respect to the lead powder were kneaded to prepare a positive electrode active material paste. This positive electrode active material paste 8
The active material layer was formed on both sides of the current collector by filling 5.5 g of the current from the upper surface of the current collector composed of the expanded lattice body installed on a flat surface. This unactivated material layer has a specific gravity of 1.06
After dipping in dilute sulfuric acid of 0 to impregnate the surface with dilute sulfuric acid,
The surface was burnt with a gas burner to dry the active material layer.
Then, the mixture was left standing for 18 hours in a temperature of 50 ° C. and a humidity of 95% for aging, and then left in a temperature of 25 ° C. and a humidity of 40% for 2 hours and dried to prepare an unformed positive electrode plate.
【００１８】次に、袋セパレータに未化成正極板を挿入
した。この袋セパレータ入り未化成正極板７枚と、未化
成負極板８枚とを積層して各極板群を作った。これら極
板群に、キャストオンストラップ法でストラップを形成
した。そして、各極板群を電槽内に配置してから、電槽
に電解液を注液して未化成鉛蓄電池を作った。なお、電
解液は比重１．２２５（２０℃）の希硫酸である。次
に、この未化成鉛蓄電池を９Ａで２１時間化成して、鉛
蓄電池を完成した。Next, the unformed positive electrode plate was inserted into the bag separator. Seven unformed positive electrode plates containing the bag separator and eight unformed negative electrode plates were laminated to form each electrode plate group. Straps were formed on these electrode plates by the cast-on-strap method. Then, after arranging each electrode plate group in the battery case, an electrolytic solution was injected into the battery case to prepare an unformed lead acid battery. The electrolytic solution is dilute sulfuric acid having a specific gravity of 1.225 (20 ° C.). Next, this unformed lead storage battery was formed at 9 A for 21 hours to complete the lead storage battery.
【００１９】（実施の形態１）実施の形態１は、比較例
１の正極活物質ペーストを、図１（Ａ）に示すように水
平に支持手段（図示せず）で搬送されるエキスパンド格
子体からなる集電体１に、その上面より充填して該集電
体１の両面に活物質層２を形成し、熟成前の未化成正極
板３を形成する。このようにして集電体１の上側より活
物質層２を充填すると、集電体１の上側の活物質層部２
ａは集電体１の下側の活物質層部２ｂよりその厚さが厚
くなる。活物質層２の充填直後に、正極板３の上方よ
り、厚さが厚い活物質層部２ａの充填面の表面に、例え
ば２．４ｇ／面の量のカーボンブラックからなる導電性
物質４を振り掛ける。この後、未化成正極板３の厚さが
厚い活物質層部２ａの表面をローラー５で加圧し、導電
性物質４を厚さが厚い活物質層部２ａの表面に食い込ま
せる。これにより活物質層２の厚い側の面の表面側に導
電性物質４が偏在した状態になる。(Embodiment 1) Embodiment 1 is an expanded lattice body in which the positive electrode active material paste of Comparative Example 1 is horizontally conveyed by a supporting means (not shown) as shown in FIG. 1 (A). The active material layer 2 is formed on both surfaces of the current collector 1 by filling the current collector 1 consisting of the above from the upper surface thereof to form the unformed positive electrode plate 3 before aging. In this way, when the active material layer 2 is filled from above the current collector 1, the active material layer portion 2 above the current collector 1 is filled.
The thickness of a is thicker than that of the active material layer portion 2b below the current collector 1. Immediately after filling the active material layer 2, the conductive material 4 made of carbon black, for example, in an amount of 2.4 g / face is provided on the filling surface of the thick active material layer portion 2a from above the positive electrode plate 3. sprinkle. After that, the surface of the active material layer portion 2a having a large thickness of the unformed positive electrode plate 3 is pressed by the roller 5 to cause the conductive material 4 to bite into the surface of the active material layer portion 2a having a large thickness. As a result, the conductive material 4 is unevenly distributed on the surface side of the thick surface of the active material layer 2.
【００２０】次に、表面側に導電性物質４が偏在した熟
成前の未化成正極板３の厚さが厚い活物質層部２ａの表
面に、図１（Ｂ）に示すように比重が１．０６０の希硫
酸を振り掛けて浸漬させる。これにより活物質層２の厚
い側の面の表面側に、硬さが硫酸鉛層６が形成される。
なお、硫酸鉛層６は厚さの薄い活物質層部２ｂの表面に
も形成してもよい。Next, as shown in FIG. 1 (B), the specific gravity is 1 on the surface of the active material layer portion 2a in which the thickness of the unformed positive electrode plate 3 before aging in which the conductive material 4 is unevenly distributed on the surface side is large. Sprinkle with 0.060 dilute sulfuric acid for immersion. As a result, the lead sulfate layer 6 having a hardness is formed on the surface side of the thick surface of the active material layer 2.
The lead sulfate layer 6 may also be formed on the surface of the thin active material layer portion 2b.
【００２１】しかる後に、この熟成前の未化成正極板３
をガスバーナーであぶり、１次乾燥させる。Thereafter, the unformed positive electrode plate 3 before the aging is performed.
Is dried with a gas burner and primary dried.
【００２２】この後、温度５０℃、湿度９５％中に１８
時間放置して活物質層２を熟成させた後に、温度２５
℃、湿度４０％中に２時間放置し、２次乾燥させて熟成
後の未化成正極板３を作つた。After this, the temperature is set to 50 ° C. and the humidity is set to 95%, and then 18
After aging the active material layer 2 by allowing it to stand for a period of time, a temperature of 25
It was left for 2 hours at 40 ° C. and 40% humidity to be secondarily dried to prepare an unformed positive electrode plate 3.
【００２３】以下同様にして鉛蓄電池を作製し、同様に
電槽内の希硫酸中で初充電（化成）した。A lead storage battery was prepared in the same manner as described below, and similarly charged for the first time in dilute sulfuric acid in a battery case (formation).
【００２４】図２は本発明の処置をしない未化成正極板
３の初充電（化成）後の上面の厚さが厚い活物質層部２
ａと下面の厚さが薄い活物質層部２ｂの硫酸鉛量と、本
発明の処置をした未化成正極板３の初充電（化成）後の
上面の厚さが厚い活物質層部２ａと下面の厚さが薄い活
物質層部２ｂの硫酸鉛量の比較図を示したものである。FIG. 2 shows an active material layer portion 2 having a thick upper surface after the initial charge (formation) of the unformed positive electrode plate 3 which is not treated according to the present invention.
a and the amount of lead sulfate in the active material layer portion 2b having a thin bottom surface, and the active material layer portion 2a having a thick upper surface after the initial charge (formation) of the unformed positive electrode plate 3 treated according to the present invention. It is a figure showing a comparative diagram of the amount of lead sulfate in the active material layer portion 2b having a thin bottom surface.
【００２５】初充電（化成）は、電槽内の希硫酸中で行
われるので、未化成正極板３を希硫酸に浸漬させること
により、厚みが厚い活物質層部２ａも厚みが薄い活物質
層部２ｂも全体的に硫酸鉛となり、この状態で初充電
（化成）が行われる。Since the initial charging (formation) is carried out in dilute sulfuric acid in a battery case, by immersing the unformed positive electrode plate 3 in dilute sulfuric acid, the thick active material layer portion 2a also has a thin active material. The layer portion 2b is also entirely made of lead sulfate, and in this state, initial charging (formation) is performed.
【００２６】初充電（化成）が行われると、この初充電
による化成は集電体１側から始まりそれぞれ表面側に進
行し、化成の進行で硫酸鉛の量は減少していく。When the initial charge (formation) is performed, the formation due to this initial charge starts from the side of the current collector 1 and progresses to the surface side, respectively, and the amount of lead sulfate decreases as the formation progresses.
【００２７】この図２から明らかなように、本発明の処
置をしない従来の未化成正極板３の化成後では、上面の
厚さが厚い活物質層部２ａは厚さが薄い下面の活物質層
部２ｂよりの硫酸鉛量が多く、硫酸鉛量に大きな差があ
る。しかるに、本発明の処置をした未化成正極板３の化
成後では、上面の厚さが厚い活物質層部２ａの硫酸鉛量
が減り、厚さが厚い活物質層部２ａの硫酸鉛量と厚さが
薄い活物質層部２ｂの硫酸鉛量との差が小さくなること
が確認された。このように厚さが厚い活物質層部２ａの
硫酸鉛量と厚さが薄い活物質層部２ｂの硫酸鉛量との差
が小さくなると、初充電の進行の極板両面で差を小さく
することができる。As is apparent from FIG. 2, after the conventional unformed positive electrode plate 3 which has not been treated according to the present invention, the active material layer portion 2a having a thick upper surface has a thin active material layer 2a having a thin lower surface. The amount of lead sulfate from the layer portion 2b is large, and there is a large difference in the amount of lead sulfate. However, after formation of the unformed positive electrode plate 3 treated according to the present invention, the amount of lead sulfate in the active material layer portion 2a having a thick upper surface is reduced, and the amount of lead sulfate in the active material layer portion 2a having a large thickness is reduced. It was confirmed that the difference from the lead sulfate amount in the thin active material layer portion 2b was small. When the difference between the lead sulfate amount in the thick active material layer portion 2a and the lead sulfate amount in the thin active material layer portion 2b becomes small as described above, the difference becomes small on both sides of the electrode plate in the progress of initial charging. be able to.
【００２８】[0028]
【発明の効果】本発明に係る鉛蓄電池では、集電体から
の厚みが厚い方の活物質層の表面側に導電性物質を偏在
させたので、集電体の両面の活物質層の初充電の入り方
がほぼ同じになり、集電体の両面の活物質層の厚さの違
いによる充電不均一さを回避することができる。In the lead acid battery according to the present invention, since the conductive material is unevenly distributed on the surface side of the active material layer having a larger thickness from the current collector, the first active material layer on both sides of the current collector is not formed. The charging method becomes almost the same, and it is possible to avoid uneven charging due to the difference in thickness of the active material layers on both surfaces of the current collector.
【００２９】この場合、導電性物質が活物質層の充填面
の表面側に偏在すると、活物質層の充填面側は反対側よ
り活物質層の厚さが厚いため、活物質層の厚い側の面の
表面側に導電性物質を偏在させることができる。In this case, if the conductive material is unevenly distributed on the surface side of the filling surface of the active material layer, the filling surface side of the active material layer is thicker than the opposite side, so that the thick side of the active material layer is thicker. The conductive substance can be unevenly distributed on the surface side of the surface.
【００３０】また、本発明に係る鉛蓄電池用極板の製造
法では、集電体の両面にペースト状活物質を充填した後
に、活物質層の厚い側の面の表面側に導電性物質を添加
し、該活物質層の表面を加圧する。Further, in the method for manufacturing the lead-acid battery electrode plate according to the present invention, after the paste-like active material is filled on both sides of the current collector, the conductive material is applied to the surface side of the thick side surface of the active material layer. Then, the surface of the active material layer is pressed.
【００３１】このように、集電体からの厚みが厚い方の
活物質層の表面側に導電性物質を偏在させると、集電体
の両面の活物質層の初充電の入り方がほぼ同じになり、
集電体の両面の活物質層の厚さの違いによる充電不均一
さを回避することができる。この際に、活物質層の厚い
側の面の表面側に導電性物質を添加し、該活物質層の表
面を加圧すると、導電性物質が活物質層内に押し込ま
れ、容易に活物質層の表面側に導電性物質を偏在させる
ことができる。As described above, when the conductive material is unevenly distributed on the surface side of the active material layer having a larger thickness from the current collector, the initial charge of the active material layers on both surfaces of the current collector is almost the same. become,
It is possible to avoid uneven charging due to the difference in thickness of the active material layers on both surfaces of the current collector. At this time, when a conductive material is added to the surface side of the thick side surface of the active material layer and the surface of the active material layer is pressed, the conductive material is pushed into the active material layer and the active material is easily formed. A conductive substance can be unevenly distributed on the surface side of the layer.
【００３２】この場合、導電性物質を活物質層の厚い側
の面の表面に振り掛けると、活物質層の厚い側の面の表
面側に導電性物質を容易に添加することができる。In this case, if the conductive material is sprinkled on the surface of the thick surface of the active material layer, the conductive material can be easily added to the surface of the thick surface of the active material layer.
【図１】（Ａ）〜（Ｃ）は本発明の鉛蓄電池用極板の製
造工程の実施の形態の一例の説明図である。1 (A) to 1 (C) are explanatory views of an example of an embodiment of a manufacturing process of a lead storage battery electrode plate of the present invention.
【図２】本発明の処置を施さない場合と本発明の処置を
施した場合の初期充電（化成）後の正極板における硫酸
鉛量を示す比較図である。FIG. 2 is a comparative diagram showing the amount of lead sulfate in the positive electrode plate after initial charging (formation) when the treatment of the present invention is not performed and when the treatment of the present invention is performed.
１ 集電体 ２ 活物質層 ２ａ 上側の活物質層部 ２ｂ 下側の活物質層部 ３ 未化成正極板 ４ 導電性物質 ５ ローラー ６ 硫酸鉛層 1 Current collector 2 Active material layer 2a Upper active material layer 2b Lower active material layer 3 Unformed positive electrode plate 4 Conductive substance 5 rollers 6 Lead sulfate layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上野 貴清 東京都中央区日本橋本町２丁目８番７号 新神戸電機株式会社内 Ｆターム(参考） 5H050 AA02 AA08 BA09 CA06 CB15 DA10 EA10 FA08 FA17 GA03 GA10 GA22 GA23 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takayoshi Ueno 2-8-7 Nihonbashihonmachi, Chuo-ku, Tokyo Inside Shin-Kobe Electric Machinery Co., Ltd. F-term (reference) 5H050 AA02 AA08 BA09 CA06 CB15 DA10 EA10 FA08 FA17 GA03 GA10 GA22 GA23
Claims (4)
在し、前記活物質層の厚みが前記集電体の両面で異なる
鉛蓄電池用極板において、 前記活物質層の厚い側の面の表面側に導電性物質が偏在
している鉛蓄電池用極板。1. A lead-acid battery electrode plate in which a paste-like active material layer is present on both sides of a current collector and the thickness of the active material layer is different on both sides of the current collector, wherein An electrode plate for a lead storage battery in which a conductive substance is unevenly distributed on the surface side of the surface.
の表面側に偏在する請求項１に記載の鉛蓄電池用極板。2. The electrode plate for a lead storage battery according to claim 1, wherein the conductive material is unevenly distributed on the surface side of the filling surface of the active material layer.
質を充填し、前記活物質層の厚みが前記集電体の両面で
異なる極板を用いた鉛蓄電池用極板の製造方法におい
て、 前記集電体の両面に片側から前記ペースト状活物質を充
填した後に、前記活物質層の厚い側の面の表面側に導電
性物質を添加し、該活物質層の表面を加圧する鉛蓄電池
用極板の製造法。3. A method of manufacturing an electrode plate for a lead storage battery, wherein both sides of a current collector are filled with a paste-like active material from one side, and the active material layer has different thicknesses on both sides of the current collector. After filling the paste-like active material from both sides of the current collector from one side, a conductive material is added to the surface side of the thick side surface of the active material layer, and lead is applied to the surface of the active material layer. Manufacturing method of electrode plate for storage battery.
の面の表面に振り掛ける請求項３に記載の鉛蓄電池用極
板の製造法。4. The method for manufacturing an electrode plate for a lead storage battery according to claim 3, wherein the conductive material is sprinkled on the surface of the thick surface of the active material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373945A JP2003178754A (en) | 2001-12-07 | 2001-12-07 | Plate for lead-acid storage battery, and manufacturing method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373945A JP2003178754A (en) | 2001-12-07 | 2001-12-07 | Plate for lead-acid storage battery, and manufacturing method of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003178754A true JP2003178754A (en) | 2003-06-27 |
Family
ID=19182581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001373945A Pending JP2003178754A (en) | 2001-12-07 | 2001-12-07 | Plate for lead-acid storage battery, and manufacturing method of the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003178754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008243493A (en) * | 2007-03-26 | 2008-10-09 | Furukawa Battery Co Ltd:The | Lead acid storage battery |
| US20210313653A1 (en) * | 2018-08-17 | 2021-10-07 | Daramic, Llc | Improved lead acid battery separators, warp resistant separators, batteries, systems, and related methods |
-
2001
- 2001-12-07 JP JP2001373945A patent/JP2003178754A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008243493A (en) * | 2007-03-26 | 2008-10-09 | Furukawa Battery Co Ltd:The | Lead acid storage battery |
| US20210313653A1 (en) * | 2018-08-17 | 2021-10-07 | Daramic, Llc | Improved lead acid battery separators, warp resistant separators, batteries, systems, and related methods |
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