JP2969873B2 - Lead storage battery - Google Patents
Lead storage batteryInfo
- Publication number
- JP2969873B2 JP2969873B2 JP2242918A JP24291890A JP2969873B2 JP 2969873 B2 JP2969873 B2 JP 2969873B2 JP 2242918 A JP2242918 A JP 2242918A JP 24291890 A JP24291890 A JP 24291890A JP 2969873 B2 JP2969873 B2 JP 2969873B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- electrode plate
- bag
- ribs
- storage battery
- 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.)
- Expired - Fee Related
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
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は鉛蓄電池の改良に関するものである。Description: TECHNICAL FIELD The present invention relates to an improvement in a lead storage battery.
従来の技術 近年、鉛蓄電池のセパレータにポリエチレンなどを主
成分としたフィルムを袋化し、これに正極板あるいは負
極板のいずれか一方を内包する構成の鉛蓄電池が実用化
された。この種のセパレータは従来の抄紙タイプのセパ
レータに比べ、 １） 電気抵抗が小さいこと。2. Description of the Related Art In recent years, a lead storage battery having a configuration in which a film containing polyethylene or the like as a main component is formed into a bag for a separator of a lead storage battery and one of a positive electrode plate and a negative electrode plate is included in the bag has been put to practical use. This type of separator 1) has a lower electrical resistance than a conventional papermaking type separator.
２） 最大孔径が著しく小さく、セパレータ貫通ショー
トがほとんどないこと。2) The maximum pore size is extremely small, and there is almost no short circuit through the separator.
という利点がある。しかも袋化することにより、軟化脱
落した活物質による底部ショートがほとんど発生しな
い。従ってこの技術は寿命途中での内部ショートはほと
んどなく、電池本来の寿命を全うし、信頼性の高い電池
を供給する点で優れた技術である。There is an advantage. In addition, by forming the bag, short-circuiting at the bottom due to the softened and dropped active material hardly occurs. Therefore, this technique is an excellent technique in that there is almost no internal short circuit during the life, the original life of the battery is completed, and a highly reliable battery is supplied.
発明が解決しようとする課題 しかしながら、袋に内包される極板に足が設けられて
いる場合、第２図に示すように足がセパレータのリブの
ない薄い部分（以下“ベース部”という）と直接接触
し、使用中にこのベース部に穴が開き、他方の極板と接
触してショートするという危険性がある。However, when feet are provided on the electrode plate included in the bag, as shown in FIG. 2, the feet are made of a thin portion without ribs of the separator (hereinafter referred to as a “base portion”). There is a danger of direct contact, opening a hole in this base during use and short-circuiting by contact with the other electrode plate.
これを解決する一手段として、第３図に示すように足
の幅をセパレータのリブ間の寸法よりも大きくし、足を
リブと接触させる方法が提案された。しかしながらこの
技術を用いた場合でも、数本のリブで極板を支えるた
め、十分な効果は得られない。As one means for solving this problem, a method has been proposed in which the width of the foot is made larger than the dimension between the ribs of the separator as shown in FIG. 3, and the foot is brought into contact with the rib. However, even when this technique is used, a sufficient effect cannot be obtained because the electrode plate is supported by several ribs.
課題を解決するための手段 本発明は、上記の問題点を解決するものであり、極板
底部に設ける足の幅をセパレータのリブ間の寸法よりも
短く（小さく）し、かつ足の長さをリブの高さより短く
したものである。Means for Solving the Problems The present invention solves the above-mentioned problems, and the width of the foot provided on the bottom of the electrode plate is shorter (smaller) than the dimension between the ribs of the separator, and the length of the foot is reduced. Is shorter than the height of the rib.
作用 これにより極板底部をセパレータに設けたすべてのリ
ブと接触させ、局部的に加わる圧力を分散させ、セパレ
ータ底部での破損を防止するものである。The effect is to bring the bottom of the electrode plate into contact with all the ribs provided on the separator, disperse the pressure locally applied, and prevent breakage at the bottom of the separator.
実施例 本発明は第１図に示すように、袋状セパレータ１に内
包される極板２底部に設ける足３の幅をセパレータ１の
リブ４間の寸法よりも短く（小さく）し、かつこの足３
の長さをリブ４の高さよりも短くしたものである。すな
わち足３の幅をＡ、足３の長さをＢとし、またセパレー
タ１のリブ４間の寸法をＬ、リブ４の高さをＨとする
と、 Ａ＜Ｙ Ｂ＜Ｈ の２つの式を同時に満足させたものである。Embodiment In the present invention, as shown in FIG. 1, the width of a foot 3 provided at the bottom of an electrode plate 2 included in a bag-shaped separator 1 is made shorter (smaller) than the dimension between ribs 4 of the separator 1. Foot 3
Is shorter than the height of the rib 4. That is, assuming that the width of the foot 3 is A, the length of the foot 3 is B, the dimension between the ribs 4 of the separator 1 is L, and the height of the rib 4 is H, two expressions of A <Y B <H are obtained. I was satisfied at the same time.
これによって、足３はリブ４で浮かされ極板２の底部
は全てのリブ４と接触し、セパレータには局部的な圧力
が加わらないため、セパレータの底部での破損を防止す
ることができる。As a result, the feet 3 are lifted by the ribs 4 and the bottom of the electrode plate 2 comes into contact with all the ribs 4, and no local pressure is applied to the separator, so that damage at the bottom of the separator can be prevented.
特にセパレータがポリエチレンなどを主成分とするフ
ィルムで袋状とされている場合、圧力などの機械的強度
に弱いため、本発明の技術は極めて有効である。In particular, when the separator is formed in a bag shape with a film mainly composed of polyethylene or the like, the technique of the present invention is extremely effective because the mechanical strength such as pressure is weak.
ところで、セパレータ底部に圧力が加わる原因は、正
極格子の腐食などによる極板の膨脹によるところがほと
んどであるが、負極板を袋状セパレータに内包している
構成においても、隣のセルの正極板の膨脹により負極板
がセパレータ底部に圧力を与える結果となるので、負極
板をセパレータに内包する構成においても効果がある。By the way, the cause of the pressure applied to the bottom of the separator is almost always due to the expansion of the electrode plate due to corrosion of the positive electrode grid, but even in the configuration in which the negative electrode plate is included in the bag-shaped separator, the positive electrode plate of the adjacent cell is Since the expansion causes the negative electrode plate to apply pressure to the bottom of the separator, it is also effective in a configuration in which the negative electrode plate is included in the separator.
また、格子の製法，形態については鋳造格子，エキス
パンド格子など種類を問わず効果がある。Regarding the manufacturing method and form of the grid, there is an effect regardless of the type, such as a cast grid or an expanded grid.
次に前述した本発明の電池A,第２図および第３図に示
す従来の電池B,Cを試作し、60℃で12週間定電圧が過充
電（2.4V/セル）を行った。過充電終了後、電池を分解
してセパレータ底部の劣化の様子を調査した。Next, the battery A of the present invention described above and the conventional batteries B and C shown in FIGS. 2 and 3 were prototyped, and overcharged (2.4 V / cell) at 60 ° C. for 12 weeks at a constant voltage. After the overcharge, the battery was disassembled and the state of deterioration of the bottom of the separator was investigated.
従来の電池Ｂはベース部で破損しており、また電池Ｃ
も極板の足と接触するリブが破損していた。一方本発明
の電池Ａは、圧力と酸化によりリブが薄くなっていた
が、破損は見られなかった。The conventional battery B is broken at the base, and the battery C
Even the ribs in contact with the pole plate feet were damaged. On the other hand, in the battery A of the present invention, the rib was thinned by the pressure and the oxidation, but no damage was observed.
発明の効果 上記のごとく、本発明は袋状セパレータの底部の破損
を防止する点で極めて有効である。Effect of the Invention As described above, the present invention is extremely effective in preventing damage to the bottom of the bag-shaped separator.
第１図は本発明の実施例における袋状セパレータとこれ
に収容された極板を示す説明図、第２図，第３図は従来
の袋状セパレータとこれに収容された極板を示す説明図
である。 １……袋状セパレータ、２……袋状セパレータに内包さ
れる極板、３……極板の足、４……袋状セパレータのリ
ブ、５……袋状セパレータの接合部、６……極板の耳。FIG. 1 is an explanatory view showing a bag-like separator and an electrode plate housed therein in the embodiment of the present invention, and FIGS. 2 and 3 are explanatory views showing a conventional bag-like separator and an electrode plate housed therein. FIG. DESCRIPTION OF SYMBOLS 1 ... Bag-shaped separator, 2 ... Electrode contained in bag-shaped separator, 3 ... Leg of electrode plate, 4 ... Rib of bag-shaped separator, 5 ... Joint of bag-shaped separator, 6 ... Plate ears.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 4/14 H01M 2/18 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) H01M 4/14 H01M 2/18
Claims (2)
極板が内側にリブを有する袋状セパレータに内包された
構成であり、セパレータに内包された極板の底部に設け
られた足の幅は前記セパレータのリブ間の寸法よりも短
く、かつその足の長さはリブの高さよりも短いことを特
徴とする鉛蓄電池。1. A structure in which at least one of a positive electrode plate and a negative electrode plate is included in a bag-like separator having a rib inside, and the width of a foot provided on the bottom of the electrode plate included in the separator is A lead-acid battery, wherein the length between the ribs of the separator is shorter than the dimension between the ribs, and the length of the leg is shorter than the height of the rib.
とする微孔性樹脂フィルムからなる特許請求の範囲第１
項に記載の鉛蓄電池。2. The separator according to claim 1, wherein the separator is made of a microporous resin film containing polyethylene or the like as a main component.
The lead storage battery according to the item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2242918A JP2969873B2 (en) | 1990-09-12 | 1990-09-12 | Lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2242918A JP2969873B2 (en) | 1990-09-12 | 1990-09-12 | Lead storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04121956A JPH04121956A (en) | 1992-04-22 |
| JP2969873B2 true JP2969873B2 (en) | 1999-11-02 |
Family
ID=17096150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2242918A Expired - Fee Related JP2969873B2 (en) | 1990-09-12 | 1990-09-12 | Lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2969873B2 (en) |
-
1990
- 1990-09-12 JP JP2242918A patent/JP2969873B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04121956A (en) | 1992-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070827 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080827 Year of fee payment: 9 |
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| LAPS | Cancellation because of no payment of annual fees |