548868 五、發明說明（1 ) 【發明所屬之技術領域】 本發明爲有關一種其所具備的極板是使用拉伸網柵之鉛 畜電池者。 【先行技術】 第3圖是鉛蓄電池極板所使用的鉛合金製拉伸網柵之正 視圖。在該拉伸網柵上，充塡含有活性物質粒子的糊料， (以下簡稱活性物質糊料），以構成爲極板者。 如第3圖所示，在拉伸網柵的側邊及下邊係具有特有的 凹部5及6。一方面充塡於上述網柵的活性物質糊料之聚 集體（以下稱活性物質層）的側邊及下邊通常是如第3圖中 的虛線所示，成爲直線者，因而，充塡在網柵的側邊及下 邊的凹部5、6之活性物質層中，其在相當於極板邊線之 部分係成開放狀態，所以網柵所保持的力量很小。 另一方面，在使用有鑄造式網柵的極板之場合中，通常 其四邊是由直線狀的網柵圍成框子狀，因而，並不會存在 有像上述使用拉伸網柵的極板，其在極板邊緣無網柵而存 在有被開放的活性物質層之情形。因此，其充塡在極板邊 緣附近的活性物質層是不容易剝離。 .如上述的，在適用拉伸網柵的極板之場合中，例如其與 使用鑄造式網柵的極板相比時，尤其是在極板的側邊及下 邊的網柵凹部’會有所充塡的活性物質層容易剝離之缺點 〇 在鉛蓄電池中’爲了要防止活性物質從拉伸網柵剝離或 脫落，係採用在極板的兩表面貼上被稱爲貼覆紙或塗膠紙 548868 五、發明說明（2) 等的薄紙（以下稱貼覆紙）之方法。 上述貼覆紙是將紙漿或合成纖維等，經製成厚度數十 〜1 〇〇 // m的薄紙，對於水富有可潤濕性，且富有柔軟性， 因而容易彎曲者。 將貼覆紙貼上於極板表面時，會將含在活性物質層的水 分吸收，而緊密的黏在極板表面。該貼覆紙會壓住極板表 面，而具有可防止活性物質層從網柵剝離之作用。 第4圖及第5圖是以長條的拉伸網柵、貼覆紙、及活性 物質糊料爲材料以製造極板的工程一例之說明圖。 從圖的左方供應長條狀網柵7、由8、1 0所示的送料滾 筒供應長條貼覆紙1 1，並將其重疊在網柵7的下側。接 著，由活性物質糊料充塡機1 2將活性物質糊料充塡於上 述網柵7上。接著，由送料滾筒1 3、1 5再供應長條貼覆 紙1 4，將其重疊於已充塡糊料的極板上面。然後，由滾 輪1 6對極板表面加壓，使貼覆紙緊貼於極板表面。 將由上述工程所製成的長條狀極板剪斷，以切成一片極 板。在剪斷工程中，是使剪斷機1 7的刀口壓在極板上， 對相當於極板兩側邊的部位加以剪斷者。 在上述剪斷工程中，壓在極板上的刀口會將貼在極板表 面的塗漿紙壓緊。由此的壓緊，貼覆紙會繞圍到被剪斷的 極板之側邊端面，而緊貼於極板的側邊端面，而將活性物 質的側面包覆。如此，在極板剪斷工程中，會將極板的側 邊端面用貼覆紙覆蓋，因而，可將側邊部分的活性物質層 從側面壓緊，由此而可防止充塡在側邊部分之網柵的凹部 548868 五、發明說明（3) 之活性物質層從網柵剝離。 第6圖是在上述工程所製成的，以往的鉛蓄電池中，其 極板是使用拉伸網柵之一例圖。如圖所示，在極板的兩面 是附貼著貼覆紙4。在第6圖上雖未圖示，但極板的側邊 端面是由貼覆紙所包覆。而相對的，在網柵下邊部分之貼 覆紙4是如第6圖所示的，仍然保持貼上於極板兩面的狀 態下，筆直的延伸。 因而，在以往的極板之情形中，極板的下邊端面並未被 貼覆紙所覆蓋，而隨其成爲露出狀態。因此，充塡在下邊 部分之網柵的凹部之活性物質層並沒有可將其壓住的東西 ，而具有容易從網柵剝離之缺點。 活性物質層的脫落是會引起容量的降低。且，如所脫落 的活性物質貫穿隔板或跨過隔板邊端而在相鄰極板間形成 活性物質的跨接時，會有在電池內部產生短路之虞。 【發明欲解決之問題】 本發明乃有鑑於上述之以往之電池的缺點所提出者，其 係在其所具備的極板是使用拉伸網柵之鉛蓄電池中，可由 簡便的方法製造其活性物質不會從網柵剝離，而不會有由 於活性物質的貫通於隔板而發生內部短路之虞之鉛蓄電池 者。 【解決問題之手段】 本發明是在其所具備的極板是使用拉伸網柵，且在其極 板的兩面上個別的貼上貼覆紙的鉛蓄電池中，至少使其一 面上的貼覆紙之末端部位突出於比上述極板的下邊更下 548868 五、發明說明（4) 方，並使該突出部分順著極板的下邊端面繞圍者。 在此所謂繞圍是指使上述貼覆紙的下端突出到比極板的 下邊更下方，而將該突出的貼覆紙之下端，順著極板的下 邊折彎或彎曲，以將極板的下邊端之一部分或全面，由貼 覆紙加以包覆者。 【發明之實施形態】 以下，詳細的說明本發明。又，在本發明中，有關貼覆 紙的材質及將貼覆紙順著極板的下邊端繞圍的方法，並無 特別的限定。 本發明的鉛蓄電池所具備的極板是使用鉛合金製的拉伸 網柵，而在該拉伸網柵上充塡有鉛或鉛氧化物所構成的活 性物質粒子者。通常，在鉛電池的場合中，是在鉛或鉛氧 化物所構成的的活性物質粒子中，添加適量的稀硫酸，經 攪拌後作成活性物質的糊料，而將該活性物質糊料充塡於 拉伸網柵上者。 在充塡過活性物質糊料的極板之兩面上，要貼上由紙漿 或合成纖錐等所製成的上述貼覆紙。第1圖是本發明鈴蓄 電池的極板之一例圖。第1圖（a)是極板的正視圖，第1 圖（b)是該極板的側視斷面圖。 在圖中，2是極板1的極板耳部。在第1圖（b)中可看到 露出於極板1的斷面之網柵3之切斷面。在該網栅的開口 部位充塡活性物質糊料，以形成爲活性物質層。如第1圖 (b)所示’使貼覆紙4繞圍到極板1的下邊端面，將極板 的下邊部分包覆。548868 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a type of lead animal battery whose electrode plate is a stretched grid. [Advanced Technology] Figure 3 is a front view of a lead alloy stretch grid used in a lead battery plate. The stretched grid is filled with a paste containing active material particles (hereinafter referred to as an active material paste) to constitute an electrode. As shown in Fig. 3, the side and bottom sides of the stretched grid have unique recessed portions 5 and 6. On the one hand, the sides and bottom sides of the aggregate of active material paste (hereinafter referred to as the active material layer) filled in the above-mentioned grid are usually straight lines as shown by the dotted lines in FIG. 3, so they are filled in the net. In the active material layers of the sides and the recesses 5 and 6 of the lower side of the grid, the portions corresponding to the edges of the electrode plate are in an open state, so the force maintained by the grid is small. On the other hand, when an electrode plate with a cast-type grid is used, its four sides are usually framed by a linear grid, so there will not be an electrode plate using a stretched grid as described above. , There is no grid at the edge of the plate and there is a case where the active material layer is opened. Therefore, the active material layer filled near the edge of the plate is not easily peeled. As mentioned above, in the case of a polarizing plate suitable for a stretched grid, for example, when compared with a polarizing plate using a cast-type grid, especially in the grid recesses on the sides and the bottom of the plate, there will be The shortcomings of the charged active material layer are easy to peel off. In lead storage batteries, in order to prevent the active material from peeling or falling off from the stretched grid, the two surfaces of the electrode plate are called paste paper or glue. Paper 548868 Fifth, the invention (2) and other thin paper (hereinafter referred to as laminating paper) method. The above-mentioned covered paper is made of pulp or synthetic fibers, etc., and is made into a thin paper having a thickness of several tens to 10,000 // m, which is wettable to water and flexible, so it is easy to bend. When the sticking paper is attached to the surface of the electrode plate, the water contained in the active material layer is absorbed and adheres tightly to the surface of the electrode plate. This covering paper presses the surface of the electrode plate, and has a function of preventing the active material layer from being peeled from the grid. Figures 4 and 5 are diagrams illustrating an example of a process for manufacturing an electrode plate by using a long stretched grid, an overlay paper, and an active material paste as materials. The elongated grid 7 is supplied from the left side of the figure, and the long sticky paper 11 is supplied by a feed roller shown in 8, 10, and is superposed on the lower side of the grid 7. Next, the active material paste filling machine 12 loads the active material paste on the grid 7 described above. Next, a long sticky paper 14 is supplied from the feed rollers 1 3, 1 5 and is superposed on the plate filled with the paste. Then, the surface of the electrode plate is pressurized by the roller 16 to make the covering paper adhere to the surface of the electrode plate. The long electrode plate made by the above process is cut to cut into one electrode plate. In the cutting process, the blade of the cutting machine 17 is pressed against the electrode plate, and the parts corresponding to the sides of the electrode plate are cut. In the above cutting process, the knife edge pressed on the electrode plate will press the coated paper adhered to the surface of the electrode plate. As a result of this compaction, the covering paper will wrap around the side end surface of the electrode plate that is cut off, and closely adhere to the side end surface of the electrode plate, thereby covering the side surface of the active material. In this way, in the electrode plate cutting process, the side end surface of the electrode plate is covered with a covering paper, so that the active material layer of the side portion can be pressed from the side, thereby preventing filling on the side edge. Part of the grid recess 548868 V. Description of the invention (3) The active material layer is peeled from the grid. Fig. 6 is an example of a conventional lead-acid battery produced by the above-mentioned process in which the electrode plate is a stretched grid. As shown in the figure, the two sides of the electrode plate are attached with a sticker 4. Although it is not shown in Fig. 6, the side end surface of the electrode plate is covered with a covering paper. In contrast, the covering paper 4 in the lower part of the grid is as shown in Fig. 6, and it still extends straight in the state of being adhered to both sides of the electrode plate. Therefore, in the case of the conventional electrode plate, the lower end surface of the electrode plate is not covered by the covering paper, but is exposed accordingly. Therefore, the active material layer that fills the recesses of the grid in the lower part has nothing to hold it down, and has the disadvantage of being easily peeled from the grid. The fall of the active material layer causes a decrease in capacity. In addition, if the dropped active material penetrates the separator or crosses the edges of the separator to form an active material bridge between adjacent plates, there is a risk that a short circuit may occur inside the battery. [Problems to be Solved by the Invention] The present invention has been made in view of the shortcomings of the above-mentioned conventional batteries. The present invention is a lead battery in which the electrode plate is a stretched grid, and its activity can be manufactured by a simple method. The material does not peel from the grid, and there is no lead storage battery that may cause an internal short circuit due to the penetration of the active material through the separator. [Means for solving the problem] The present invention is a lead storage battery in which a polar grid provided with a stretched grid is used, and at least one side of the lead storage battery is covered with paper. The end portion of the paper cover protrudes below the lower edge of the electrode plate 548868. 5. Description of the invention (4), and the protruding portion surrounds the person along the lower end surface of the electrode plate. The so-called wrapping means that the lower end of the above-mentioned covering paper is protruded to be lower than the lower edge of the electrode plate, and the lower end of the protruding covering paper is bent or bent along the lower edge of the electrode plate to bend the electrode plate. One of the lower ends is partially or fully covered by covered paper. [Embodiments of the invention] Hereinafter, the present invention will be described in detail. Further, in the present invention, the material of the covering paper and the method of wrapping the covering paper along the lower end of the electrode plate are not particularly limited. The electrode plate provided in the lead storage battery of the present invention is a lead grid made of a lead alloy, and the drawn grid is filled with active material particles made of lead or lead oxide. Generally, in the case of lead batteries, an appropriate amount of dilute sulfuric acid is added to active material particles composed of lead or lead oxide, and the active material paste is filled after being stirred to fill the active material paste. On the stretch grid. On both sides of the electrode plate filled with the active material paste, the above-mentioned covering paper made of pulp or synthetic fiber tape, etc., should be pasted. Fig. 1 is a diagram showing an example of a polar plate of a bell storage battery according to the present invention. Fig. 1 (a) is a front view of an electrode plate, and Fig. 1 (b) is a side sectional view of the electrode plate. In the figure, 2 is a plate ear of the plate 1. In Fig. 1 (b), the cut surface of the grid 3 exposed on the cross section of the electrode plate 1 can be seen. An active material paste is filled in the opening portion of the grid to form an active material layer. As shown in Fig. 1 (b), the covering paper 4 is wound around the lower end surface of the electrode plate 1, and the lower portion of the electrode plate is covered.
548868 五、發明說明（5) 貼覆紙在一般上是使用厚度約數十// m，是用1 0 0 %紙 漿或合成纖維所製成的紙體，但，在本發明中可適用任一 種者。 要如上述的使貼覆紙繞圍於極板下邊端面之方法並無特 別的限定，但，可如第4圖及第5圖所示，在要貼在上述 極板的下一面及上一面的貼覆紙中，至少使其一面的貼覆 紙之寬度大於極板的縱向尺寸（極板的高度），並以所定尺 寸，使其以一定寬度超出於極板的下邊端部位般地貼附在 極板的面上。 接著，在極板的下邊，用勺子狀的貼覆紙打彎用具頂住 ，以使超出於極板下邊之外的貼覆紙之末端順著極板的下 邊端面繞圍。本來就富有柔軟性的貼覆紙會從活性物質層 吸收水分而變得更柔軟，因而，可由上述方法，簡單的使 貼覆紙末端繞圍。濕的貼覆紙會緊密的黏在極板的下邊端 面。 將貼覆紙繞圍於極板下邊端面所形成的形狀並無特別的 限定，第2圖（a)〜（g)是表示其各種形狀。第2圖是極板的 下段之局部側視斷面圖。 如第2圖（d)及（e)所示，將極板的端面整體用一層貼覆 紙包覆的形狀，或如（b)、（ c )所示的用兩層貼覆紙包覆的 形狀是較有效果。 又，如第2圖（a)、（f)、及（g)所示，貼在極板兩面上的 貼覆紙之中，使其一面或兩面上的貼覆紙繞圍到極板的下 邊端面，以將極板的下邊端面之一部分由貼覆紙所包覆者 548868 五、發明說明（6) 也有效果。要防止極板下邊端部位的糊料從網柵剝離時， 較佳爲將極板下邊端面的1/5以上，進而1/3以上的部分 加以覆蓋者。 但，還是將極板下邊端面整面用貼覆紙加以包覆者，其 對將活性物質保持在網柵上的功能較高，因而，在防止活 性物質的剝離上，是具更高可靠性之構造。 【發明之效果】 如上所詳述，依本發明申請專利範圍第1項時，在所具 備的極板是使用拉伸網柵之鉛蓄電池中，可提供一種少有 活性物質從網柵脫落之虞，具優異的放電容量，且，少有 產生內部短路之虞的鉛蓄電池。依本發明申請專利第2項 時，可提供一種具備其對將活性物質保持在網柵上之功能 優異的極板之鉛蓄電池者。 【附圖簡單說明】 第1圖：本發明一實施形態之極板圖， (a) 是正視圖， (b) 是側視斷面圖。 第2圖：本發明各種實施形態的極板之下段局部斷面圖。 (a) 是使雙面的貼覆紙順著極板下邊端面繞圍，而露出極 板下邊端面的一部分之例子， (b) 是使雙面的貼覆紙順著極板下邊端面繞圍，而在極板 下邊端面使貼覆紙重疊之例子， (c) 是使單面的貼覆紙順著極板下邊端面繞圍，並折回， 而在其上面覆蓋另一面的貼覆紙之例子， (d) 是使雙面的貼覆紙都順著極板下邊端面繞圍，而在極 548868 五、發明說明（7) 板下邊端面將重疊的貼覆紙折回之例子’ (e) 是使單面的貼覆紙順著極板下邊端面繞圍，而將極板 下邊端面整面加以覆蓋的例子， (f) 是使單面的貼覆紙順著極板下邊端面繞圍，而將極板下 邊端面的一部分覆蓋之例子， (g) 是使單面的貼覆紙順著極板下邊端面繞圍，而露出極 板的下端部分表面及下邊端面的一部分之例子， 第3圖：拉伸網柵的正視圖。 第4圖：有關本發明的極板製造工程之說明圖。 第5圖：有關本發明的極板製造工程之說明圖。 第6圖：以往使用拉伸網柵的極板之實施形態說明圖， (a) 是極板的正視圖， (b) 是極板的側視圖。 符號之說明 1 使用拉伸網柵的極板 3 拉伸網柵 4 薄紙548868 V. Description of the invention (5) In general, the covered paper is a paper body with a thickness of about several tens of meters per meter, and is made of 100% pulp or synthetic fibers. However, it can be used in the present invention. One person. The method for wrapping the covering paper around the lower end surface of the electrode plate as described above is not particularly limited. However, as shown in FIGS. 4 and 5, the method can be applied to the next and previous surfaces of the electrode plate to be pasted. In the pasting paper, at least one side of the pasting paper has a width larger than the longitudinal dimension of the electrode plate (the height of the electrode plate), and has a predetermined size so that it is pasted with a certain width beyond the lower end of the electrode plate. Attached to the surface of the plate. Next, under the electrode plate, use a spoon-shaped covering paper bending tool to hold it so that the end of the covering paper beyond the bottom of the plate surrounds the lower end surface of the plate. Originally, the flexible covering paper absorbs moisture from the active material layer and becomes softer. Therefore, the end of the covering paper can be simply wrapped by the above method. Wet sticky paper will stick tightly to the bottom end surface of the plate. The shape formed by wrapping the covering paper around the lower end surface of the electrode plate is not particularly limited, and Figs. 2 (a) to (g) show various shapes. Fig. 2 is a partial side sectional view of the lower section of the plate. As shown in Figures 2 (d) and (e), the entire end surface of the plate is covered with a layer of covering paper, or as shown in (b) and (c) with two layers of covering paper The shape is more effective. In addition, as shown in Fig. 2 (a), (f), and (g), among the covering papers affixed to both sides of the electrode plate, the covering papers on one or both sides of the electrode plate are wrapped around the The lower end surface is such that a part of the lower end surface of the electrode plate is covered by the affixed paper 548868 5. The invention description (6) is also effective. In order to prevent the paste at the lower end portion of the electrode plate from peeling off from the grid, it is preferable to cover a portion of the lower end surface of the electrode plate by more than 1/5, and then by more than 1/3. However, the person who covers the entire end surface of the bottom plate with a covering paper has a higher function of holding the active material on the grid, so it has higher reliability in preventing the active material from peeling off. Of the structure. [Effect of the invention] As described in detail above, when applying for the first scope of the patent application of the present invention, in a lead storage battery having a pole plate using a stretched grid, it can provide a kind of active material with few active materials falling off the grid. It is a lead storage battery that has excellent discharge capacity and has a low risk of internal short circuit. When applying for the second item of the patent in accordance with the present invention, it is possible to provide a lead storage battery having an electrode plate having an excellent function of holding an active material on a grid. [Brief description of the drawings] FIG. 1: An electrode plate according to an embodiment of the present invention, (a) is a front view, and (b) is a side sectional view. FIG. 2 is a partial cross-sectional view of the lower section of an electrode plate according to various embodiments of the present invention. (a) is an example in which a double-sided covering paper is wound along the lower end surface of the electrode plate, and a part of the lower end surface of the electrode plate is exposed; (C) is an example in which the laminating paper is overlapped on the lower end surface of the electrode plate, and the single-sided laminating paper is wound along the lower end surface of the electrode plate and folded back, and the other side of the laminating paper is covered on it. For example, (d) is a case where the double-sided covering paper is wound along the lower end surface of the electrode plate, and the pole 548868 V. Description of the invention (7) The overlapping end paper is folded back on the lower end surface of the plate '(e) It is an example in which a single-sided covering paper is wound along the lower end surface of the electrode plate, and the entire lower end surface of the electrode plate is covered. (F) A single-sided covering paper is wound along the lower end surface of the electrode plate. In the example of covering a part of the lower end surface of the electrode plate, (g) is an example in which a single-sided covering paper is wound along the lower end surface of the electrode plate to expose the lower end portion surface and a part of the lower end surface. Figure: Front view of a stretched grid. FIG. 4 is an explanatory diagram of a manufacturing process of an electrode plate according to the present invention. Fig. 5 is an explanatory diagram of a process for manufacturing an electrode plate according to the present invention. Fig. 6 is an explanatory view of an embodiment of a conventional electrode plate using a stretched grid. (A) is a front view of the electrode plate, and (b) is a side view of the electrode plate. Explanation of symbols 1 Electrode using stretched grid 3 Stretched grid 4 Tissue paper