JPS5818875A - Lead storage battery prepared by use of expanded grids - Google Patents

Abstract

PURPOSE:To prevent any short circuit caused by the extension of plates, and obtain grids having a small electric resistance by using the central unexpanded part of a belt-like network, which is prepared by subjecting a lead alloy sheet to expansion work, as a lug and a side conductor. CONSTITUTION:An expanded part 1 provides grid sash bars, and a central unexpanded part 2 provided a grid lug 2' and a side conductor 2''. For the purpose of effectively utilizing the belt-like network, the lower end part 3 of the side conductor 2'' is cut so that the cut part becomes the lug 2' of the next grid. As seen in figure (b), the central unexpanded part illustrated in figure (a) is folded into halves by providing cuts 4 on the above central unexpanded part 2, and the widths of the lug 2' and the side conductor 2'' of figure (b) is about 1/2 those of figure (a). After that, grids prepared in such a way as above are assembled into an electrode group by situating the lugs 2' at the tops and the side conductors 2'' at the sides of the grids. As a result, no short circuits develop between the positive and the negative electrodes even when the plates are extended in the expanded direction, and the electric resistance becomes small due to the side conductors 2''.

Description

【発明の詳細な説明】 本発明は鉛合金シートをエキスバンド加工した格子を用
いる鉛蓄電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lead-acid battery using a grid obtained by expanding a lead alloy sheet.

一般にエキスバンド格子を用いた鉛蓄電池ではエキスバ
ンド方向が極板の上下方向となるように配置している。Generally, lead-acid batteries using an expanded grid are arranged so that the expanded direction is in the vertical direction of the electrode plates.

しかしこの構成では電池使用中に正極板の桟すなわち網
目はエキスバンドし１こ方向すなわち上下に伸び、負繊
ストラップと接鳴、短絡して寿命となる欠点があった。However, this configuration has the drawback that during use of the battery, the beams or meshes of the positive electrode plate expand in one direction, that is, vertically, and contact with the negative fiber strap, causing a short circuit and shorting the life of the battery.

またＷＬ流は桟を４行して上端の耳ｌζ達するので電気
抵抗が大きく、とくに細長く背の高い極板では抵抗によ
るエネルギー損失が大きいという欠点があった。In addition, the WL style has a disadvantage in that the electric resistance is large because the crosspieces are arranged in four rows to reach the upper end lζ, and energy loss due to the resistance is particularly large in the case of long and tall electrode plates.

本発明はエキスバンド格子を用いた鉛１ｍ池の１肥大点
を解消し、極板の伸びによる短絡をＩＩＪｉ　ｔヒする
とともに電気抵抗の小さｆ、Ｃ格子を得ることを目的と
している。その要旨は鉛合金シートをエキスバンド加工
した帯状網の中央非展開部を耳と耳組当部を下端から除
去した横側導体とにするエキスバンド格子を用いること
にあり、とくに該中央非展開部を曲げることにある。The purpose of the present invention is to solve the problem of one enlarged point in a 1 m lead cell using an expanded grid, to prevent short circuits due to the elongation of the electrode plates, and to obtain a f, C grid with low electrical resistance. The gist is to use an expanded lattice in which the center non-deployed part of a belt-shaped mesh made of expanded lead alloy sheet becomes a lateral conductor with ears and ear fitting parts removed from the lower end. It consists in bending the parts.

本発明になる電池に用いる格子を図面によって説明する
と、鉛合金シートをエキスバンド加工した帯状網を示す
第１図で、（１）はエキスバンド部。The lattice used in the battery of the present invention will be explained with reference to the drawings. Fig. 1 shows a belt-like mesh obtained by expanding a lead alloy sheet, and (1) is an expanded part.

７２）は中央非展開部で点線は帯状網から格子を得るた
めの切断線でみる。第２図ｆｌＬ）は帯状網を切断して
得ｔこ格子を示し、エキスバンド部（１）は洛ｆ桟を形
成しており、中央非展開部（２）は格子の耳（２）およ
び横側導体（２）を形成している。エキスバンド加工し
ｆコ帯状網を有効に利用する１こめに横倒導体のＦ端部
（８）を耳相当ｍ（２５だけ切欠いた構造とし、その部
分を隣りの格子の耳とする。第２図（ｂｌは（ａｌにお
ける中央非展開部に切目（４）を入れて二つ折にしｆこ
もので、耳（２５および横側導体（ｄｌの巾はｌｂ）で
′は（＆）のそれの約４になっている。これらの格子は
耳をＥに横側導体が横になるように配置して離板群とす
る。72) is the central undeveloped part, and the dotted line is a cutting line for obtaining a lattice from the belt-like mesh. Figure 2 flL) shows a lattice obtained by cutting a band-like net, the expanded band part (1) forms a raku french, and the central non-expanded part (2) forms the ears (2) and the lattice of the lattice. A lateral conductor (2) is formed. Extended band processing is used to make effective use of the band-shaped net.First, the F end (8) of the horizontal conductor is cut out by a length corresponding to the ear (m) (25 mm), and that part is used as the ear of the adjacent grid. Figure 2 (bl is (al) made by making a cut (4) in the central undeveloped part and folding it in half, with ears (25 and lateral conductor (width of dl is lb) and '' is that of (&). 4. These grids are arranged with the ears at E and the lateral conductors lying side by side to form a separated plate group.

本発明になる電池では以上述べ１こような構造であるか
らＦＭ＆がエキスバンドした方向に伸びてもＩＦ・負碓
間の短絡が無いばかりでなく、横側導体のｊこめに１気
抵抗が小さいという＠徴がある。The battery according to the present invention has such a structure as described above, so even if FM & extends in the expanded direction, there is not only no short circuit between the IF and the negative terminal, but also 1 resistance at the side conductor. There is a @ sign that it is small.

とくにａ醍く背の高い融成の場合に高出力が得られる。In particular, high output can be obtained when the melt is particularly tall.

さらにエキスパンド゛加工しｆこ帯状網はすべて弁動に
利用して格子となる・υで省資譚やコストダウンに好適
である。Furthermore, all of the expanded band-like nets can be used for valve operation to form a lattice, which is suitable for saving resources and reducing costs.

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

第゛１図は鉛合金ノートをエキスバンド加ニレｔこ帯状
網を示す上面略図、第、２図は帯状網を切断して得た格
子を不−イＬ面略図である。 １・・・・・・エキー人１　＜ンド部で１各子桟、　２
・・・・・・中央非展開部、　ｌ・・・・・・耳　　、
ｙ・・・・・・横側導体。 ８・・・・・・耳部に相当する、横側導体下端の切欠。 ４・・・・・・切目。Fig. 1 is a schematic top view showing a belt-like net obtained by expanding lead alloy notebook, and Figs. 1...Eki people 1 <1 each child in the Ndo part, 2
...Central undeveloped part, l...Ear,
y...lateral conductor. 8...Notch at the lower end of the side conductor, corresponding to the ear. 4... Cut.

Claims (1)

【特許請求の範囲】[Claims] 鉛合金シートをエキスバンド加工した帯状網の中央非展
開部を耳と耳組当部を下端から除去した横側導体とにす
るエキスバンド格子を用いた鉛蓄電池。A lead-acid battery using an expanded grid, in which the central non-deployed part of a belt-like net made of expanded lead alloy sheet is used as a lateral conductor with ears and ear fittings removed from the lower end.