JPH08203554A - Lead-acid battery - Google Patents
Lead-acid batteryInfo
- Publication number
- JPH08203554A JPH08203554A JP7013935A JP1393595A JPH08203554A JP H08203554 A JPH08203554 A JP H08203554A JP 7013935 A JP7013935 A JP 7013935A JP 1393595 A JP1393595 A JP 1393595A JP H08203554 A JPH08203554 A JP H08203554A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- lead
- battery
- plate
- cathode plate
- 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.)
- Pending
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用鉛蓄電池に関
し、特に微孔性の合成樹脂シートを袋状にして陰極板を
包み込む構成のセパレータを用いる鉛蓄電池の改良に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead acid battery for an automobile, and more particularly to an improvement of a lead acid battery using a separator having a structure in which a microporous synthetic resin sheet is formed into a bag and a cathode plate is wrapped in the bag.
【０００２】[0002]
【従来の技術】自動車用鉛蓄電池では、格子体に所定の
活物質ペーストを充填した極板、特に陽極板を微孔性の
ポリエチレンシートからなる袋状セパレータ内に収納し
て用いるのが一般的になりつつある。2. Description of the Related Art In a lead acid battery for an automobile, it is common to use an electrode plate in which a grid is filled with a predetermined active material paste, particularly an anode plate, housed in a bag-shaped separator made of a microporous polyethylene sheet. Is becoming.
【０００３】そしてこの構成により、陽，陰極板を隔離
すると共に、電池使用時に格子体から脱落した活物質を
袋内に溜めて脱落した活物質による陽，陰極板の電気的
短絡を防止している。With this structure, the positive and negative plates are separated from each other, and the active material dropped from the grid when the battery is used is stored in a bag to prevent an electrical short circuit between the positive and negative plates due to the dropped active material. There is.
【０００４】また、近年自動車用エンジンの高性能化に
伴い、自動車用電池の周囲温度は非常に高くなってお
り、このような高温下で電池が使用されると陽極板の腐
食が促進され格子体が大きく伸長することによって変形
し、セパレータの物理的劣化および化学的劣化を促進す
る場合がある。In addition, as the performance of automobile engines has become higher in recent years, the ambient temperature of automobile batteries has become extremely high. If batteries are used at such high temperatures, corrosion of the anode plate is promoted and the grid The body may be deformed due to a large elongation and accelerate physical and chemical deterioration of the separator.
【０００５】このことを防止するため、陽極板の代わり
に陰極板を袋状セパレータで包み込むことによりセパレ
ータの突き破りを防止する構成の電池がある。In order to prevent this, there is a battery in which the cathode plate is wrapped with a bag-shaped separator instead of the anode plate to prevent the separator from breaking through.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、近年の
自動車はエンジンの高性能化と共に車内の電装品が著し
く増加してきており、自動車用電池は周囲温度が高くな
ると共に高負荷によって放電深度が非常に深くなってき
ている。However, in recent automobiles, the number of electric components inside the automobile has increased remarkably as the engine performance has increased, and the battery for automobiles has a high ambient temperature and a very deep load, resulting in a very deep discharge depth. It is getting deeper.
【０００７】そしてこのような高負荷で電池が使用され
ると、陽極活物質の軟化が進行して徐々に活物質が格子
から脱落し、その脱落した活物質が充電中の電気分解に
より発生する気泡によって、いわゆるモス状鉛になって
極板群上に舞い上がり、極板群の陽極板と陰極板の上部
に堆積して短絡を引き起こし短寿命となる大きな課題が
あった。When the battery is used under such a high load, the softening of the anode active material progresses, the active material gradually drops from the lattice, and the dropped active material is generated by electrolysis during charging. Due to the bubbles, so-called moss-like lead rises up on the electrode plate group and is deposited on the anode plate and the cathode plate of the electrode plate group to cause a short circuit, resulting in a short life.
【０００８】また、上記の現象は特に陽極板の耳部付近
にモス状鉛が堆積すると、より短絡しやすいこととな
る。Further, the above phenomenon is more likely to cause a short circuit, especially when moss-like lead is deposited near the ears of the anode plate.
【０００９】本発明はこれらの課題を解決するものであ
り、陽極板の格子体の腐食伸長によるセパレータの劣化
を防止すると共に極板群上にモス状鉛が堆積して短絡す
ることによる短寿命を改善した鉛蓄電池を提供するもの
である。The present invention solves these problems, and prevents deterioration of the separator due to corrosion extension of the grid of the anode plate and shortens the service life due to short circuit due to the accumulation of moss-like lead on the electrode plate group. It is intended to provide a lead storage battery having improved.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
に本発明の鉛蓄電池は、微孔性の合成樹脂シートを袋状
にして陰極板を包み込む構成のセパレータを用いる鉛蓄
電池において、前記陰極板の上部枠骨よりも上に出てい
るセパレータのベース部間の隙間を２ｍｍ以内としたも
のである。In order to solve the above-mentioned problems, the lead-acid battery of the present invention is a lead-acid battery using a separator having a structure in which a microporous synthetic resin sheet is formed into a bag shape and a cathode plate is wrapped in the cathode battery. The gap between the base portions of the separator, which is above the upper frame of the plate, is set to be within 2 mm.
【００１１】尚、上記セパレータのベース部間の隙間が
２ｍｍ以内である部分は、少なくとも陽極板の耳部との
対向部で陽極板の耳幅以上であればよい。The portion where the gap between the base portions of the separator is 2 mm or less may be at least a portion facing the ear portion of the anode plate and has a width equal to or larger than the edge width of the anode plate.
【００１２】[0012]
【作用】従来の構成においては、陰極板を包み込んでい
たセパレータのベース部間の隙間が陰極板の上部枠骨よ
りも上で大きく開いていたため、モス状鉛として舞い上
がっていたものが陰極板の上部枠骨の部分に容易に堆積
してしまい、その堆積が次第に大きくなることによって
陽極板と接触し短絡に至っていた。In the conventional structure, since the gap between the base portions of the separator enclosing the cathode plate is largely open above the upper frame bone of the cathode plate, what has been soaring as moss-like lead is the cathode plate. It was easily deposited on the part of the upper frame bone, and the deposition gradually increased, and it contacted with the anode plate, resulting in a short circuit.
【００１３】これに対して本発明は、陰極板を包み込ん
だセパレータのベース部間の隙間を陽極板の上部枠骨よ
りも上の部分で２ｍｍ以内に狭くすることにより、舞い
上がったモス状鉛が直接陰極板の上部枠骨に堆積するこ
とを抑制するものであり、これにより堆積が次第に大き
くなっても陰極板と陽極板とが直接接触することを防止
したものである。On the other hand, according to the present invention, since the gap between the base portions of the separator enclosing the cathode plate is narrowed within 2 mm above the upper frame bone of the anode plate, the moss-like lead that has risen It is intended to suppress direct deposition on the upper frame of the cathode plate, and thereby prevent direct contact between the cathode plate and the anode plate even if the deposition gradually increases.
【００１４】[0014]
【実施例】以下本発明の実施例について図面に基づき説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図１は本発明鉛蓄電池の構成の一例を示す
もので、図中１はポリエチレンとシリカを主成分とした
微孔性合成樹脂シートを袋状に形成したセパレータ、２
は前記セパレータ１によって包み込まれた陰極板、３は
陽極板、４は極板群棚、そしてａは前記陰極板２の上部
枠骨２ａよりも上に出ているセパレータ１のベース部１
ａ，１ａ間の隙間寸法で、本発明ではこの隙間寸法ａを
２ｍｍ以内とした。FIG. 1 shows an example of the structure of the lead acid battery of the present invention. In FIG. 1, 1 is a separator in which a microporous synthetic resin sheet containing polyethylene and silica as main components is formed in a bag shape.
Is a cathode plate surrounded by the separator 1, 3 is an anode plate, 4 is an electrode plate group shelf, and a is a base portion 1 of the separator 1 protruding above the upper frame bone 2a of the cathode plate 2.
In the present invention, the gap dimension a is within 2 mm.
【００１６】次に、前記微孔性合成樹脂シートを袋状に
形成して陰極板２を包み込む構成のセパレータ１を用い
る上記構成にて、陰極板２の上部枠骨２ａよりも上に出
ている部分でセパレータ１のベース部１ａ，１ａ間の隙
間寸法ａが１ｍｍの電池Ａ、２ｍｍの電池Ｂ、３ｍｍの
電池Ｃ、４ｍｍの電池Ｄと、前記隙間寸法ａが２ｍｍの
部分を陽極板３との対向部において陽極板３の耳部３ｂ
の耳幅と同じにした電池Ｅを作成した。尚、いずれの電
池も公称仕様は１２Ｖ，４８Ａｈとした。Next, in the above-described structure using the separator 1 in which the microporous synthetic resin sheet is formed into a bag shape and the cathode plate 2 is wrapped, the cathode plate 2 is exposed above the upper frame bone 2a. In the portion where the gap dimension a between the base portions 1a and 1a of the separator 1 is 1 mm, the battery A is 2 mm, the cell B is 3 mm, the battery C is 4 mm, and the cell D is 4 mm. The ear portion 3b of the anode plate 3 at the portion facing the
A battery E having the same width as the ear width was prepared. Each battery had a nominal specification of 12 V and 48 Ah.
【００１７】そしてこれらの電池Ａ，Ｂ，Ｃ，Ｄ，Ｅを
用いて、４０℃の雰囲気中にて放電が２５Ａで１時間、
充電が２５Ａで１．５時間を１サイクルとして、２５サ
イクル毎に９．６Ａにて容量測定を行い、その時の容量
が公称容量の５０％以下になった時を寿命とする寿命試
験を行った。その結果を図２に示す。Using these batteries A, B, C, D and E, the discharge was 25 A in an atmosphere of 40 ° C. for 1 hour,
The charge was 25 A, 1.5 hours was set as one cycle, the capacity was measured every 25 cycles at 9.6 A, and a life test was performed with the life when the capacity at that time was 50% or less of the nominal capacity. . The result is shown in FIG.
【００１８】図２に示したように陰極板２を包み込んだ
セパレータ１のベース部１ａ，１ａ間の隙間寸法ａが３
ｍｍの電池Ｃと４ｍｍの電池Ｄは急激に容量低下し早期
に寿命になったのに対して、隙間寸法ａが１ｍｍの電池
Ａと２ｍｍの電池Ｂは電池Ｃ，Ｄに対して２倍以上の寿
命サイクルであり、大幅に寿命が向上していることがわ
かる。As shown in FIG. 2, the gap dimension a between the base portions 1a, 1a of the separator 1 enclosing the cathode plate 2 is 3
The capacity of the battery C of 4 mm and the capacity of the battery D of 4 mm were reduced rapidly and reached the end of life. It can be seen that this is a life cycle of, and the life is greatly improved.
【００１９】また、陰極板２を包み込んだセパレータ１
のベース部１ａ，１ａ間の隙間寸法ａが２ｍｍであるが
その部分が陽極板３との対向部において陽極板３の耳幅
とした電池Ｅは、隙間寸法ａが１ｍｍの電池Ａおよび隙
間寸法ａが２ｍｍの電池Ｂと比較すると僅かにサイクル
数が短いが、隙間寸法ａが３ｍｍの電池Ｃならびに隙間
寸法ａが４ｍｍの電池Ｄと比較するとこれよりも大幅に
寿命が向上しており、陰極板２を包み込んだセパレータ
１のベース部１ａ，１ａ間の隙間寸法ａが２ｍｍ以内で
あれば、その部分が陽極板３との対向部において陽極板
３の耳幅以上であることにより、大きな効果が得られる
こともわかる。Further, the separator 1 enclosing the cathode plate 2
The battery E having a gap dimension a between the base portions 1a and 1a of 2 mm and having the gap width a of the anode plate 3 at the portion facing the anode plate 3 is 2 mm Although the cycle number is slightly shorter than that of the battery B having a of 2 mm, the life is significantly improved as compared with the battery C having the gap dimension a of 3 mm and the battery D having the gap dimension a of 4 mm. If the gap dimension a between the base portions 1a, 1a of the separator 1 enclosing the plate 2 is within 2 mm, the portion is larger than the edge width of the anode plate 3 at the portion facing the anode plate 3, which is a great effect. It can also be seen that
【００２０】そして、寿命試験が終了した電池Ａ，Ｂ，
Ｃ，Ｄ，Ｅを分解して極板群を観察したところ、電池Ｃ
と電池Ｄはモス状鉛が直接陰極板２の上部枠骨２ａに堆
積し、それが陽極板３の耳部３ｂと接触し短絡が発生し
ており、この短絡が原因で急激な容量低下をしたものと
思われる。Then, the batteries A, B, which have undergone the life test,
When C, D and E were disassembled and the electrode plate group was observed, battery C
In the battery D, moss-like lead is directly deposited on the upper frame bone 2a of the cathode plate 2 and contacts with the ears 3b of the anode plate 3 to cause a short circuit. This short circuit causes a rapid capacity decrease. It seems to have been done.
【００２１】また電池Ａと電池Ｂについてはモス状鉛の
堆積は見られたが、直接陰極板２とは接触しておらず、
そのため極板群に短絡はなく良好な状態で寿命に至って
いた。Although moss-like lead was found to be deposited in batteries A and B, it did not come into direct contact with the cathode plate 2,
Therefore, there was no short circuit in the electrode group, and the life was reached in a good state.
【００２２】そして電池Ｅについては、モス状鉛がセパ
レータ１のベース部１ａ，１ａ間の隙間寸法ａが２ｍｍ
となっている陽極板３の耳部３ｂとの対向部以外の所
で、直接陰極板２の上部枠骨２ａに堆積しそれが大きく
なって陽極板３の上部枠骨３ａと接触して短絡が発生し
ていた。In the battery E, the moss-like lead has a gap dimension a of 2 mm between the base portions 1a of the separator 1.
Except for the portion of the anode plate 3 facing the ears 3b, the anode plate 3 is directly deposited on the upper frame bone 2a of the cathode plate 2 and grows larger to come into contact with the upper frame bone 3a of the anode plate 3 and short-circuit. Was occurring.
【００２３】このことから、電池Ｅの寿命が電池Ｃおよ
び電池Ｄよりも寿命が向上した要因としては、モス状鉛
の堆積時間が陰極板２の上部枠骨２ａから陽極板３の耳
部３ｂに到達するまでよりも、陰極板２の上部枠骨２ａ
から陽極板３の上部枠骨３ａまでに到達する時間のほう
が長く必要であったためと思われる。From this, the reason why the life of the battery E is longer than that of the batteries C and D is that the deposition time of moss-like lead is from the upper frame bone 2a of the cathode plate 2 to the ear 3b of the anode plate 3. To the upper frame bone 2a of the cathode plate 2
It is considered that it took longer time to reach from the anode frame 3 to the upper frame bone 3a of the anode plate 3.
【００２４】[0024]
【発明の効果】以上のように本発明によれば、微孔性の
合成樹脂シートを袋状にして陰極板を包み込む構成のセ
パレータを用いる鉛蓄電池において、前記陰極板の上部
枠骨よりも上に出ているセパレータのベース部間の隙間
を２ｍｍ以内とすることにより、陽極板の格子体の腐食
伸長によって発生するセパレータの劣化を防止すると共
に、従来の陰極板を袋状セパレータで包み込む構成での
モス状鉛の堆積に起因する極板群の短絡による短寿命を
改善するものである。As described above, according to the present invention, in a lead storage battery using a separator having a structure in which a microporous synthetic resin sheet is formed into a bag shape and wraps around the cathode plate, the lead battery is above the upper frame of the cathode plate. By keeping the gap between the base parts of the separators within 2 mm within 2 mm, it is possible to prevent the deterioration of the separator caused by the corrosion extension of the grid of the anode plate and to wrap the conventional cathode plate in the bag-shaped separator. It is intended to improve the short life due to the short circuit of the electrode plate group due to the deposition of moss-like lead.
【図１】本発明鉛蓄電池の構成の一例を示す断面図FIG. 1 is a cross-sectional view showing an example of the configuration of the lead acid battery of the present invention.
【図２】本発明鉛蓄電池と従来電池との寿命試験の結果
を示す特性図FIG. 2 is a characteristic diagram showing a result of a life test of the lead storage battery of the present invention and a conventional battery.
１ セパレータ １ａ ベース部 ２ 陰極板 ２ａ 陰極板の上部枠骨 ３ 陽極板 ３ａ 陽極板の上部枠骨 ３ｂ 陽極板の耳部 ４ 極板群棚 ａ セパレータのベース部間の隙間寸法 1 Separator 1a Base Part 2 Cathode Plate 2a Cathode Plate Upper Frame Bone 3 Anode Plate 3a Anode Plate Upper Frame Bone 3b Anode Plate Ear Part 4 Electrode Plate Shelf a Separator Dimension Between Bases
Claims (2)
極板を包み込む構成のセパレータを用いる鉛蓄電池にお
いて、前記陰極板の上部枠骨よりも上に出ているセパレ
ータのベース部間の隙間が２ｍｍ以内であることを特徴
とする鉛蓄電池。1. A lead storage battery using a separator having a structure in which a microporous synthetic resin sheet is formed into a bag shape and a cathode plate is wrapped around the cathode plate, and between the base parts of the separators which are above the upper frame bone of the cathode plate. A lead storage battery having a gap of 2 mm or less.
ｍｍ以内である部分が、少なくとも陽極板の耳部との対
向部で陽極板の耳幅以上であることを特徴とする請求項
１記載の鉛蓄電池。2. The gap between the base portions of the separator is 2
The lead-acid battery according to claim 1, wherein the portion within mm is at least the edge width of the anode plate at a portion facing the ear portion of the anode plate or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7013935A JPH08203554A (en) | 1995-01-31 | 1995-01-31 | Lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7013935A JPH08203554A (en) | 1995-01-31 | 1995-01-31 | Lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08203554A true JPH08203554A (en) | 1996-08-09 |
Family
ID=11847059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7013935A Pending JPH08203554A (en) | 1995-01-31 | 1995-01-31 | Lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08203554A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100311945B1 (en) * | 1998-09-18 | 2001-11-03 | 모리시타 요이찌 | Lead acid storage battery |
| CN113708009A (en) * | 2021-08-30 | 2021-11-26 | 安徽真莱斯新能源科技有限公司 | Safety protection device of large-capacity battery pack |
-
1995
- 1995-01-31 JP JP7013935A patent/JPH08203554A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100311945B1 (en) * | 1998-09-18 | 2001-11-03 | 모리시타 요이찌 | Lead acid storage battery |
| CN113708009A (en) * | 2021-08-30 | 2021-11-26 | 安徽真莱斯新能源科技有限公司 | Safety protection device of large-capacity battery pack |
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