JPS6116469A

JPS6116469A - Enclosed lead storage battery

Info

Publication number: JPS6116469A
Application number: JP59134070A
Authority: JP
Inventors: Akio Tanaka; 昭雄田中; Mitsuo Tachikawa; 立川　光男
Original assignee: Nippon Muki Co Ltd
Current assignee: Nippon Muki Co Ltd
Priority date: 1984-06-30
Filing date: 1984-06-30
Publication date: 1986-01-24
Anticipated expiration: 2009-03-16
Also published as: JPH0619983B2

Abstract

PURPOSE:To prevent falling off of active material by preparing a structure having a glass mat held in embedded manner on the surface of active material applied on an electrode substrate and disposing a plurality of such structures in parallel in a battery jar. CONSTITUTION:Paste active material 2 is applied on an electrode substrate 1, and a glass mat 3 is pressed against and adhered to the active material 2 when it is still soft, and then the combination is dried and put under chemical conversion treatment, so that the glass mat 3 is held on the active material 2 in embedded manner; thus obtained structures are disposed in parallel in a battery jar 4, with the glass mat 3 of the positive electrode 5 and the glass mat 3 of the negative electrode 6 being in direct contact with each other. Thus constructed, even when the glass mat 3 absorbs battery electrolyte and shrinks, it will not be removed from the electrode substrate 1, assuring at all times uniform spreading of the battery electrolyte over the active material 2 applied on both electrode substrates 1, and furthermore, there is no falling off of the active material 2 applied on the electrode substrate 1, permitting good gas absorbing condition to prevent decrease of battery capacity and to prolong the life.

Description

【発明の詳細な説明】（産業上の利用分野）本発明は密閉型鉛蓄電池に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a sealed lead acid battery.

（従来の技術）従来、密閉型鉛蓄電池はｔ極基板に活物質が施さｆＬ女
陰・陽電極を組み立てるに当り、両電極間を一定間隔に
保持し、かつ電解液を電極にゆきわたらせるために両電
極間に隔離板としてガラスマツトラ介在させるを一般と
する。(Prior art) Conventionally, in a sealed lead-acid battery, an active material is applied to the t-electrode substrate, and when assembling the fL female negative and positive electrodes, the distance between the two electrodes is maintained at a constant distance, and the electrolyte is spread across the electrodes. For this reason, it is common practice to interpose a glass plate as a separator between both electrodes.

（発明が解決しようとする問題点）しかし上記密閉型鉛蓄電池の隔離板に弔いら几るガラス
マットは電解液を吸収しｌｒ際厚みに収縮が起ｐ易い斤
め、比較的厚いガラスマツトラ両電極間に挿入しこ１を
圧縮状態で市１極を組み立てて電そう内に装着した場合
でも、このガラスマットの収縮による電極とガラスマッ
ト間の隙間の形成を充分に防止出来ず、このガラスマッ
トが電極基板に施さｎている活物質に対し均一な密着状
態どならない。従って電極基板からの活物質の脱落や活
物質に電解液が均一にゆきわたらないｋめ電池容量の低
下或いはガス吸収状態の低下による電池寿命の短命化等
の欠点があり、電極基板から活物質の脱落がなくかつ活
物質に対（７電解液が均一にゆきわたる密閉型鉛蓄電池
の開発が望捷几てぃた。(Problem to be Solved by the Invention) However, the glass mat used as the separator of the sealed lead-acid battery absorbs the electrolyte and tends to shrink in thickness, and is relatively thick for both electrodes. Even if the electrode 1 is assembled with the insert 1 inserted between them in a compressed state and installed inside the electric housing, it is not possible to sufficiently prevent the formation of a gap between the electrode and the glass mat due to shrinkage of the glass mat. However, it does not adhere uniformly to the active material applied to the electrode substrate. Therefore, there are disadvantages such as the active material falling off from the electrode substrate, the electrolyte not being distributed uniformly to the active material, a decrease in battery capacity, and a shortened battery life due to a decrease in the gas absorption state. The goal was to develop a sealed lead-acid battery in which the electrolyte does not fall off and the electrolyte is evenly distributed over the active material.

（問題全解決する女めの手段）本発明はかかる現状に鑑み活物質の脱落金防ぎ、活物質
に電解液が均一にゆきわｆ（、！１ｌ１１電池容量が低
下せず、寿命の長い密閉型鉛蓄電池を枡供することを目
的としたものであり５電極基板に施さ２″１．、７を活
物質の表面にガラスマツ）？食込み状態に重合させ、そ
の複数個を電そう内に並設したことｆ特徴とする。(Women's Means to Solve All Problems) In view of the current situation, the present invention prevents the active material from falling off and allows the electrolyte to spread uniformly to the active material. It is intended for supplying lead-acid batteries, and is made by applying 2" 1., 7 to a 5-electrode substrate, polymerizing it to the surface of the active material so that it bites into glass pine), and placing multiple pieces of it side by side in an electric cell. What I did is characterized by f.

尚前記並設に当っては、電極基板に重合させたガラスマ
ット同志ｆ直接描接させても良いし、或いは電極基板に
重合させたガラスマット同志の対向間隔に別途のガラス
マツ）？介在させて電池容量を調節するようにしても良
い。In the above-mentioned juxtaposition, the polymerized glass mats may be brought into direct drawing contact with the electrode substrate, or a separate glass mat may be provided at the opposing interval between the polymerized glass mats f on the electrode substrate. The battery capacity may be adjusted by intervening.

（実施例）本発明を図面に示す実施例により説明する。(Example) The present invention will be explained with reference to embodiments shown in the drawings.

第１図は本発明の一実施例を示す裁断側面図、第２図は
ガラスマットを重合さｎた電極基板の一例の側面図、第
３図は第２図Ａ部における裁断拡大図、第４図は本発明
の他の実施例を示す裁断側面図である。FIG. 1 is a cut side view showing one embodiment of the present invention, FIG. 2 is a side view of an example of an electrode substrate on which a glass mat is polymerized, and FIG. 3 is a cut enlarged view of part A in FIG. FIG. 4 is a cut side view showing another embodiment of the present invention.

図中、１は電極基板を示し例えば鉛材ま女は鉛合金材よ
ｐなるフラット状或いは格子体状のものである。２は活
物質を示し陽極用の場合は例えば酸化鉛材、陰極用の場
合は例えばスポンジ状鉛材であって、この活物質２は夫
々の電極基板１に施さｎている。３はガラスマットを示
し例えば耐酸性のすぐｎ、２アルカリガラスを溶融紡糸
して得らｎる直径０，５すいし２０ミクロン程度の細い
単繊維を多数交差させて重ね合せてほぐｔ′１ないよう
に厚さ０，２ないし４簡の多孔質のシート状となし電解
液が滲透し易いようにしたもので、前記活物質２の表面
に食込み状態に重会させた。In the figure, reference numeral 1 indicates an electrode substrate, and the electrode substrate is made of lead material, for example, and is made of lead alloy material and has a flat shape or a lattice shape. Reference numeral 2 indicates an active material, for example, a lead oxide material for an anode, and a sponge-like lead material for a cathode, and this active material 2 is applied to each electrode substrate 1. 3 indicates a glass mat, for example, a large number of thin single fibers with a diameter of about 0.5 to 20 microns obtained by melt-spinning acid-resistant alkali glass are crossed and overlapped and loosened. A porous sheet with a thickness of 0.2 to 4 layers was made so that the electrolytic solution could easily permeate therethrough, and was superimposed on the surface of the active material 2 so as to bite into the surface of the active material 2.

尚ガラスマット３を電極基板１に施さｎ’７活物質２へ
重会させるには、電極基板１にペースト状の活物質２を
塗布し、この活物質２が軟いうちにガラスマット３を胛
前貼付し続いてこｎらを乾燥および化成処理を行うこと
によってガラスマット３′ｆ−活物質２に食い込み状態
に重合させる。In order to apply the glass mat 3 to the electrode substrate 1 and superimpose it on the n'7 active material 2, apply the paste-like active material 2 to the electrode substrate 1, and apply the glass mat 3 while the active material 2 is soft. The glass mat 3'f-active material 2 is polymerized in a state where it bites into the glass mat 3'f-active material 2 by pasting it on the front and then drying and chemical conversion treatment.

第１図示の実施例では前記のような構成からなる陽極５
のガラスマット３と陰極６のガラスマット３と全直接当
接させて電そう４内に並設した。In the embodiment shown in the first figure, the anode 5 has the above-described structure.
The glass mat 3 of the cathode 6 was placed in direct contact with the glass mat 3 of the cathode 6 in parallel in the cell 4.

上記の如くガラスマット３は電極基板１に施さｊ、てい
る活物質２の表面に食込み状態に重合さｎているので、
このガラスマット３が電解液を吸収して収縮しても電極
基板１より離脱することがないため、両電極基板１に施
さｎている活物質２に対し常に電解液が均一にゆきわに
り、しかも電極基板１に施さｎている活物質２の脱落が
なく、ガス吸収状態が良好となり、電池容量の低下を防
ぎ寿命も長くなる。As mentioned above, the glass mat 3 is applied to the electrode substrate 1 and is polymerized in a state of biting into the surface of the active material 2.
Even if this glass mat 3 absorbs the electrolyte and shrinks, it will not separate from the electrode substrate 1, so that the electrolyte will always spread evenly over the active material 2 applied to both electrode substrates 1. Furthermore, the active material 2 applied to the electrode substrate 1 does not fall off, resulting in a good gas absorption state, preventing a decrease in battery capacity, and extending the service life.

１斤第４図示の実施例では陽橙５のガラスマット３と陰
極６のガラスマット３との各対向間隔に別途のカラスマ
ット７ケ介在させて電池容量を調節させるようにした。In the embodiment shown in the fourth figure of one loaf, seven additional glass mats are interposed at each opposing interval between the glass mat 3 of positive orange 5 and the glass mat 3 of cathode 6 to adjust the battery capacity.

そして陽極５のガラスマット３と陰極６のガラスマット
３との間に介在するガラスマツドア１−ｊ：ＩＩ各各ク
ラスマット３その界面において互にからみ合った状態と
なっているのでこノ１らカラスマットが電解液を吸収し
て収縮しても互いに離脱することはない。The glass mat doors 1-j:II interposed between the glass mat 3 of the anode 5 and the glass mat 3 of the cathode 6 are intertwined with each other at the interface. Even if the crow mat absorbs the electrolyte and contracts, they will not separate from each other.

ま斤ガラスマット３は電極基板ｌに施さｔ’Ｌ７’ｒ活
物質２に重会さｎているから、’ｔｉ！そう４内に単に
並べて並設すｎ、は良いので、電池の製造組立も簡単で
ある。Since the glass mat 3 overlaps the active material 2 applied to the electrode substrate l, 'ti! Since it is sufficient to simply arrange the batteries side by side in the same manner, manufacturing and assembling the battery is also simple.

（発明の効果）このように本発明によるときけ、電極基板に施さｎｆＪ
：活物質の表面にガラスマットが食込み状態に重合させ
、その複数個ｆ電そう内に並設してなるため、このガラ
スマットが収縮しても電極基板からＫｔ脱することがな
く、従って活物質の電極基板からの脱落もなく、また活
物質に電解液が均一にゆきわたって、ガス吸収状態を良
好ならしめ電池容量の低重を防ぎ、寿命を長くすること
が出来、電池の製造組立、電池容量の調節も簡単に行い
得る等の効果がある。(Effects of the Invention) As described above, the present invention allows nfJ to be applied to the electrode substrate.
: Glass mats are polymerized into the surface of the active material, and a plurality of them are arranged in parallel inside the electrode, so even if the glass mats shrink, Kt will not escape from the electrode substrate, and therefore the active material will not be removed. There is no material falling off from the electrode substrate, and the electrolyte is evenly spread over the active material, which improves gas absorption, prevents the battery capacity from becoming low, and extends the battery life. , the battery capacity can be easily adjusted.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す截ｌり１側面図、第２
図はガラスマットを重合さ１．た電極基板の一例の側面
図１１第３図は第２図Ａ部における裁断拡大図、第４図
は本発明の他の実施例を示す裁断側面図でちる。Fig. 1 is a cutaway side view showing one embodiment of the present invention;
The figure shows polymerized glass mat 1. FIG. 3 is an enlarged cutaway view of section A in FIG. 2, and FIG. 4 is a cutaway side view showing another embodiment of the present invention.

Claims

【特許請求の範囲】[Claims]

電極基板に施された活物質の表面にガラスマットを食込
み状態に重合させ、その複数個を電そう内に並設したこ
とを特徴とする密閉型鉛蓄電池。A sealed lead-acid battery characterized in that a glass mat is polymerized into the surface of an active material applied to an electrode substrate, and a plurality of the mats are arranged side by side in a cell.