JPS61264684A - Manufacture of negative electrode absorptive lead storage battery - Google Patents

Abstract

PURPOSE:To uniformize the amount of electrolytic solution injected into each cell, by injecting the electrolytic solution, with pressure reduced, into each cell so that a group of electrode plates may be impregnated with the assigned amount of the electrolytic solution, and then forming air holes at partitions. CONSTITUTION:A group of electrode plates 4 are housed in each cell of a battery jar unit 1, and electrolytic solution is injected inside each cell, with the pressure reduced there. Injection of the electrolytic solution realizes a battery jar formation, in which a group of the electrode plates 4 are impregnated with the electrolytic solution, and the surface E of the electrolytic solution comes lower to the upper ends of a group of the electrode plates 4 after the battery jar formation. After the battery jar formation is completed, air holes 5 are formed at partition plates 3, located upper to the upper ends of a group of electrode plates 4, and thereafter a top cover 6 is mounted on the battery jar unit 1 by thermal fusion or the like, to enclose the electric jar unit 1, and charging is performed. Hence, without neighboring cells being affected, the amount of electrolytic solution injected into each cell can be uniformized.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、自動車用バッテリー、ポータプル機器用電源
等に用いられる陰極吸収式鉛蓄電池の製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a cathode absorption type lead-acid battery used for automobile batteries, power sources for portable equipment, and the like.

従来の技術 この種の陰極吸収式鉛蓄電池は、陽極から発生する酸素
を陰極に吸収させる構造であシ、液の補充が不要で、電
装本体と上蓋を気密にシールした密閉形電池となってい
るが、電池の内圧が上昇し、電池の破損が生じるのを防
止するため、上蓋に安全弁を設けるのが一般的である。Conventional technology This type of cathode absorption lead-acid battery has a structure in which the oxygen generated from the anode is absorbed by the cathode.There is no need to replenish the liquid, and it is a sealed battery with the electrical equipment body and the top lid sealed airtight. However, in order to prevent the internal pressure of the battery from rising and causing damage to the battery, it is common to provide a safety valve on the top cover.

しかし、安全弁は高価であり、各セルに対応して安全弁
を設けるのはコスト競争が厳しい現在実用には供し得え
ず、このため、第２図に示す如く上蓋（図示せず）に安
全弁を１個のみ設け、各セル２１間を区画する中仕切板
２２に設けた通気穴２３にて各セル間を連通させる構成
が提案されている。However, safety valves are expensive, and providing a safety valve for each cell is not practical in today's harsh cost competition. A configuration has been proposed in which only one is provided and each cell is communicated with each other through a ventilation hole 23 provided in a partition plate 22 that partitions each cell 21.

発明が解決しようとする問題点 しかしながら、従来の構成においては、中仕切板２２に
設ける通気穴２３は電解液の注入前に既にあけられてお
９、各セルを減圧して電解液を注入する際、通気穴２３
を通して電解液が移動し、各セル内に収納された極板群
２４への含浸量にアンバランスが生ずる危険性があった
。すなわち、隣接゛したセルＡ、Ｂにおいて、何らかの
原因により一方のセルＡへの電解液の注入が完了した状
態（セルＡは常圧の状態）で、他方のセルＢ内は減圧状
態で電解液の注入が続行している場合、圧力差によりセ
ルＢ内にセルＡ内に注入された電解液の一部が移動し、
セルＡとセルＢとの電解液にアンバランスが生じる。な
お、セル内に注入された電解液は、極めて短時間に極板
群に含浸され、通気穴より下方に下がるため、上述のよ
うな状態が生じた場合、各セル間の電解液の注入量のア
ンバランスは解消されない。なお、第２図において、Ｃ
はセル内への電解液注入直後の電解液面を示し、Ｄは極
板群２４に電解液が含浸された後の電解液面を示すもの
である。Problems to be Solved by the Invention However, in the conventional configuration, the ventilation holes 23 provided in the partition plate 22 are already opened before the electrolyte is injected9, and the electrolyte is injected by reducing the pressure in each cell. Ventilation hole 23
There was a risk that the electrolytic solution would move through the cells, causing an imbalance in the amount of impregnation into the electrode plate group 24 housed in each cell. In other words, in adjacent cells A and B, when injection of electrolyte into one cell A has been completed due to some reason (cell A is under normal pressure), the electrolyte inside the other cell B is under reduced pressure. If injection continues, part of the electrolyte injected into cell A moves into cell B due to the pressure difference,
An imbalance occurs between the electrolytes of cell A and cell B. In addition, the electrolyte injected into the cell will impregnate the electrode plate group in a very short time and drop below the ventilation hole, so if the above situation occurs, the amount of electrolyte injected between each cell will be reduced. The imbalance will not be resolved. In addition, in Figure 2, C
D shows the electrolyte level immediately after the electrolyte is injected into the cell, and D shows the electrolyte level after the electrode plate group 24 is impregnated with the electrolyte.

本発明は、各セルへの電解液の注入量を均一化すること
を目的とするものである。The present invention aims to equalize the amount of electrolyte injected into each cell.

問題点を解決するための手段 上記目的を達成するため本発明は、各セル内に電解液を
減圧注入し、極板群に電解液を所定量含浸させた後に中
仕切に通気穴をあけるものである。Means for Solving the Problems In order to achieve the above object, the present invention injects an electrolytic solution into each cell under reduced pressure, and after impregnating the electrode plate group with a predetermined amount of the electrolytic solution, vent holes are made in the partition. It is.

作　　用 上記構成によれば、各セルへの電解液の注入状態にアン
バランスが生じても、隣接するセル影響を与えることが
なく、最終的な各セルへの電解液の注入量を均一化する
ことがない。Effect According to the above configuration, even if an imbalance occurs in the injection state of electrolyte into each cell, it does not affect adjacent cells, and the final amount of electrolyte injected into each cell is made uniform. There's nothing to do.

実施例 以下本発明の一実施例を第２図を参照して説明する。第
２図は本発明により製造された鉛蓄電池の構成を示すも
ので、１は電池本体を構成する合成樹脂製の電槽本体で
、複数のセル２に区画するための中仕切板３が一体に設
けられている。４は各セルに収納される極板群、６は中
仕切板３に設けられる通気穴で、電解液注入完了直後の
電解液面より上方に位置する箇所に設けられている。６
は電槽本体１の上面開口を気密に覆う上蓋で単一の安全
弁７が設けられている。EXAMPLE An example of the present invention will be described below with reference to FIG. Fig. 2 shows the structure of a lead-acid battery manufactured according to the present invention, in which 1 is a synthetic resin battery case body constituting the battery body, and a partition plate 3 for partitioning into a plurality of cells 2 is integrated. It is set in. 4 is a group of electrode plates housed in each cell, and 6 is a ventilation hole provided in the partition plate 3, which is located above the electrolyte level immediately after the electrolyte injection is completed. 6
is an upper lid that airtightly covers the upper opening of the battery case body 1, and is provided with a single safety valve 7.

次に製造工程について説明すると、まず電槽本体１の各
セルに極板群４を収納した後、各セル内を減圧して内部
に電解液を注入する。電解液の注入によシ、極板群４に
電解液が含浸される電槽化成が行なわれ、電槽化成終了
後の電解液面Ｅは極板群４の上端より下方に下がる。こ
の電槽化成終了後、極板群４の上端より上方に位置する
箇所の中仕切板３に通気穴５をあけ、その後、上蓋６を
熱溶着等により電槽本体１に取付け、電槽本体１を密閉
した後、充電を行なう。Next, the manufacturing process will be described. First, the electrode plate group 4 is housed in each cell of the battery case body 1, and then the pressure inside each cell is reduced and an electrolytic solution is injected into the inside. By injecting the electrolyte, cell formation is performed in which the electrode plate group 4 is impregnated with the electrolyte, and the electrolyte level E after the cell formation is lowered below the upper end of the electrode plate group 4. After completing the formation of the battery case, a ventilation hole 5 is made in the partition plate 3 located above the upper end of the electrode plate group 4, and then the top cover 6 is attached to the battery case body 1 by heat welding or the like. After sealing 1, charge it.

発明の効果 以上の説明から明らかなように本発明は、各セル内に電
解液を減圧注入し、極板群に電解液を含浸させた後に中
仕切板に通気穴を形成するものであり、各セルへの電解
液の注入状態にアンバランスが生じても、この状態では
通気穴は設けられていないため、隣接するセルへ影響を
与えることがなく、各セルの電解液の量を均一化するこ
とができる。Effects of the Invention As is clear from the above explanation, the present invention involves injecting an electrolytic solution into each cell under reduced pressure, impregnating the electrode plate group with the electrolytic solution, and then forming ventilation holes in the partition plate. Even if an imbalance occurs in the state of electrolyte injection into each cell, since there are no ventilation holes in this state, it will not affect adjacent cells and the amount of electrolyte in each cell will be equalized. can do.

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

第１図は本発明により製造される陰極吸収式鉛蓄電池の
断面図、第２図は従来例を示す断面図である。 １・・・・・・電槽本体、２・・・・・・セル、３・・
・・・・中仕切板、４・・・・・・極板群、６・・・・
・・通気穴、６・・・・・・上蓋、７・・・・・・安全
弁。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第２
図FIG. 1 is a sectional view of a cathode absorption type lead acid battery manufactured according to the present invention, and FIG. 2 is a sectional view of a conventional example. 1...Battery case body, 2...Cell, 3...
...Inner partition plate, 4...Pole plate group, 6...
...Vent hole, 6...Top lid, 7...Safety valve. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

【特許請求の範囲】[Claims] 極板群が収納された複数のセル内を減圧して電解液を注
入し、前記極板群に電解液を含浸させ、次に各セル間を
区画する各中仕切板の電解液面より上方に位置する箇所
に通気穴を設けて各セルを連通させ、その後、セルを構
成する電装本体と上蓋をシールした後、充電してなる陰
極吸収式鉛蓄電池の製造方法。The inside of the plurality of cells in which the electrode plate groups are housed is depressurized and an electrolytic solution is injected to impregnate the electrode plate groups with the electrolytic solution. A method for manufacturing a cathode absorption type lead-acid battery, in which a ventilation hole is provided at a location located at a location to allow each cell to communicate with each other, and then the electrical equipment body and the top lid that constitute the cell are sealed, and then charged.