JPH02262237A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH02262237A JPH02262237A JP1083137A JP8313789A JPH02262237A JP H02262237 A JPH02262237 A JP H02262237A JP 1083137 A JP1083137 A JP 1083137A JP 8313789 A JP8313789 A JP 8313789A JP H02262237 A JPH02262237 A JP H02262237A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- separator
- material layer
- electrolyte
- anode
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 22
- 239000006182 cathode active material Substances 0.000 claims abstract description 19
- 239000006183 anode active material Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims description 35
- 238000000926 separation method Methods 0.000 claims description 20
- 230000000717 retained effect Effects 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 16
- 229910001882 dioxygen Inorganic materials 0.000 abstract description 16
- 239000011149 active material Substances 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000005871 repellent Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000002940 repellent Effects 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007650 screen-printing Methods 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 229910000978 Pb alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は薄形の密閉形鉛蓄電池に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a thin sealed lead acid battery.
［従来技術］
一般的な密７閉形鉛蓄電池は、陰極板、セパレータおよ
び陽極板を所要数順次重ねてなる極板群を電槽内に配置
して構成される。近年、密閉形鉛蓄電池は、ポータプル
機器、携帯用電源あるいは非常用電源などに幅広く利用
されており、薄形化の要求が強くなっている。そこでシ
ート状の鉛板または鉛合金板等からなる集電体上に薄く
活物質層を形成して陽極板と陰極板とを作り、両極板の
間にガラス繊維の不織布よりなる多孔性隔離体にゲル状
の電解液を含浸させてなる電解液保持体を配置する構成
の密閉形鉛蓄電池が提案された。[Prior Art] A typical sealed 7-type lead-acid battery is constructed by arranging a group of electrode plates, each consisting of a required number of cathode plates, separators, and anode plates stacked one on top of the other, in a battery case. In recent years, sealed lead-acid batteries have been widely used in portable devices, portable power sources, emergency power sources, and the like, and there has been a strong demand for thinner batteries. Therefore, a thin active material layer is formed on a current collector made of a sheet-shaped lead plate or lead alloy plate to create an anode plate and a cathode plate, and a porous separator made of a non-woven glass fiber fabric is placed between the two electrode plates. A sealed lead-acid battery has been proposed in which an electrolyte holder is impregnated with an electrolyte.
［発明が解決しようとする課題］
密閉形鉛蓄電池では、過充電された場合に、水分解がお
きて陽極板から酸素ガスが発生する。この酸素ガスは陰
極板で吸収され、陰極活物質のＰｂと反応してＰｂＯと
なる。このＰｂＯは電解液のＨ２ｓｏ４と反応してＰｂ
ＳＯ４とＨ２Ｏとを生成する。そのため水の減少はなく
、陰極板からのＨ２ガスの発生も起らない機構となって
いる。[Problems to be Solved by the Invention] When a sealed lead-acid battery is overcharged, water decomposition occurs and oxygen gas is generated from the anode plate. This oxygen gas is absorbed by the cathode plate, reacts with Pb of the cathode active material, and becomes PbO. This PbO reacts with H2so4 in the electrolyte, causing PbO to become PbO.
Generates SO4 and H2O. Therefore, the mechanism is such that there is no loss of water and no generation of H2 gas from the cathode plate.
上記のように陽極板から発生した酸素ガスは、電電解質
を通って陰極板に吸収されなければならない。しかしな
がら、前述の薄形の密閉形鉛蓄電池では、活物質層の表
面全体は電解液が含浸された電解液保持体で覆われてお
り、また活物質層の裏面は・シート状の集電体に密着し
ているため、充電時における陰極板での酸素ガスの吸収
が十分に行なわれない問題があった。The oxygen gas generated from the anode plate as described above must be absorbed into the cathode plate through the electrolyte. However, in the thin sealed lead-acid battery described above, the entire surface of the active material layer is covered with an electrolyte holder impregnated with electrolyte, and the back surface of the active material layer is covered with a sheet-like current collector. Since the cathode plate is in close contact with the cathode plate, there is a problem in that oxygen gas is not sufficiently absorbed by the cathode plate during charging.
本発明の目的は、上記の問題点を解消することができる
薄形の密閉形鉛蓄電池を提供することにある。An object of the present invention is to provide a thin sealed lead-acid battery that can solve the above problems.
［課題を解決するための手段］
本発明は、陰極集電体の上に陰極活物質層が形成され、
陽極集電体の上に陽極活物質層が形成され、陰極活物質
層と陽極活物質層との間に電解液保持体が配置されてな
る極板群を備えた密閉形鉛蓄電池を対象とする。本発明
においては、耐酸性及び撥水性を有する所定の形状のセ
パレータを陰極活物質層と陽極活物質層との間に配置す
る。このセパレータは、陰極活物質層及び陽極活物質層
の一部と接触して陰極活物質層と陽極活物質層との間に
複数の分離スペースを形成するものである。[Means for Solving the Problems] The present invention provides a method in which a cathode active material layer is formed on a cathode current collector,
The target is a sealed lead-acid battery equipped with an electrode plate group in which an anode active material layer is formed on an anode current collector, and an electrolyte holder is arranged between the cathode active material layer and the anode active material layer. do. In the present invention, a separator having a predetermined shape and having acid resistance and water repellency is disposed between a cathode active material layer and an anode active material layer. The separator contacts a portion of the cathode active material layer and the anode active material layer to form a plurality of separation spaces between the cathode active material layer and the anode active material layer.
そして複数の分離スペース内に電解液保持体を保持させ
ている。The electrolyte holder is held within the plurality of separation spaces.
セパレータで形成する複数の分離スペースが上下方向に
分散するようにセパレータを構成すると、電解液保持体
が複数個に分割された状態になり、全体的に見た時の電
解液の濃度差が小さくなる。If the separator is configured so that the multiple separation spaces formed by the separator are dispersed in the vertical direction, the electrolyte holder will be divided into multiple pieces, and the difference in the concentration of the electrolyte will be small when viewed as a whole. Become.
セパレータとして、セパレータ用シートに複数の貫通孔
及び溝の少なくとも一方をむらなく分散形成したセパレ
ータを用いれば、電解液保持体を保持する分離スペース
を活物質層の表面全体にむらなく分散配置することがで
きる。If a separator in which at least one of a plurality of through holes and grooves is evenly distributed in a separator sheet is used as a separator, the separation spaces for holding the electrolyte holder can be evenly distributed over the entire surface of the active material layer. I can do it.
電解液保持体は、ガラス繊維からなる不織布に電解液を
含浸させたものでも良いが、ケイソウ上等の粉体やシリ
カ粒子を分散させた溶液に硫酸を加えてゲル状またはペ
ースト状にした電解液保持体を用いることができる。ゲ
ル状またはペースト状にした電解液保持体を用いる場合
には、電解液保持体をスクリーン印刷により分離スペー
ス内に充填すればよい。The electrolyte holder may be a non-woven fabric made of glass fiber impregnated with an electrolyte, but it can also be made into a gel or paste by adding sulfuric acid to a solution in which diatomaceous powder or silica particles are dispersed. A liquid retainer can be used. When using a gel-like or paste-like electrolyte holder, the electrolyte holder may be filled into the separation space by screen printing.
［作用］
耐酸性と撥水性を有するセパレータには電解液が含浸さ
れないため、セパレータと接触する活物質層の表面部分
には電解液が存在しない。またセパレータと電解液保持
体とは異質であり且つセパレータが撥水性を有するため
、セパレータと電解液保持体との間には酸素ガスの通路
が形成される。[Function] Since the acid-resistant and water-repellent separator is not impregnated with an electrolytic solution, no electrolytic solution is present on the surface portion of the active material layer that comes into contact with the separator. Further, since the separator and the electrolyte holder are different in nature and the separator has water repellency, an oxygen gas passage is formed between the separator and the electrolyte holder.
従って陽極板で発生した酸素ガスは、電解液が存在しな
い活物質層の表面部分からセパレータと電解液保持体と
の間の通路を通って陰極板の活物質の表面部分で吸収さ
れる。したがって従来のように、酸素ガスの大部分は実
質的に電解液の中を通らないので、酸素ガスの吸収は良
好に行われる。Therefore, oxygen gas generated on the anode plate passes from the surface portion of the active material layer where no electrolyte exists, passes through the passage between the separator and the electrolyte holder, and is absorbed by the surface portion of the active material on the cathode plate. Therefore, as in the conventional case, most of the oxygen gas does not substantially pass through the electrolyte, so that oxygen gas is well absorbed.
その結果、従来よりも電池内の内圧は小さくなる。As a result, the internal pressure inside the battery becomes smaller than before.
従来のように、１枚の電解液保持体（リテーナ）を用い
ると電解液保持体内の上方と下方とでは電解液の濃度に
比較的大きな差が生じる。複数の分離スペースを上下方
向に分散せるようにセパレータを構成し、電解液保持体
を上下方向に分散した形にすると、各分離スペース内の
電解液保持体内で電解液の濃度差が生じることになる。If a single electrolyte holder is used as in the past, there will be a relatively large difference in the concentration of the electrolyte between the upper and lower parts of the electrolyte holder. If the separator is configured so that multiple separation spaces are distributed vertically and the electrolyte holders are distributed vertically, a difference in the concentration of the electrolyte will occur within the electrolyte holders in each separation space. Become.
そのため全体的に見ると、従来よりも電解液の濃度差は
小さくなる。Therefore, overall, the difference in concentration of the electrolyte becomes smaller than in the past.
またセパレータとして、複数の貫通孔及び溝の少なくと
も一方がむらなく分散形成されたセパレータを用いると
、酸素ガスの通路を陰極活物質層と陽極活物質層との間
にむらなく形成することができ、ガス吸収を極めて良好
に行わせることができる。Furthermore, if a separator in which at least one of a plurality of through holes and grooves is evenly distributed is used as a separator, a passage for oxygen gas can be evenly formed between the cathode active material layer and the anode active material layer. , gas absorption can be performed extremely well.
［実施例］ 以下図面を参照して本発明の実施例を詳細に説明する。[Example] Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の密閉形鉛蓄電池の分解斜視図を示して
いる。同図において１及び２はフィルム状またはシート
状の合成樹脂体であり、熱溶着可能なポリエチレン等の
合成樹脂から形成されている。合成樹脂体１及び２の上
には、それぞれ端子部３ａ及び４ａを有する鉛または鉛
合金からなるフィルム状またはシート状の集電体３及び
４が、エポキシ樹脂系接着剤によって接着されている。FIG. 1 shows an exploded perspective view of a sealed lead-acid battery according to the present invention. In the figure, reference numerals 1 and 2 are film-like or sheet-like synthetic resin bodies, which are made of heat-weldable synthetic resin such as polyethylene. On top of the synthetic resin bodies 1 and 2, film-like or sheet-like current collectors 3 and 4 made of lead or lead alloy and having terminal portions 3a and 4a, respectively, are adhered with an epoxy resin adhesive.
集電体３及び４の上には、ペースト状の陽極活物質材料
及び陰極活物質材料をそれぞれスクリーン印刷により塗
布して、適宜の処理を施すことにより陽極活物質層５及
び陰極活物質層６が形成されている。なおペースト状の
活物質材料は、鉛粉、水および硫酸を練り合わせて作ら
れる。またスクリーン印刷法で塗布したペースト状の活
物質材料は、乾燥した後、熟成→化成−水洗→乾燥を行
ってそれぞれ陽極活物質層５及び陰極活物質層６となる
。On the current collectors 3 and 4, a paste-like anode active material material and a cathode active material material are applied by screen printing, respectively, and an appropriate treatment is performed to form an anode active material layer 5 and a cathode active material layer 6. is formed. Note that the paste-like active material is made by kneading lead powder, water, and sulfuric acid. Further, the paste-like active material applied by the screen printing method is dried and then subjected to aging, chemical formation, washing with water, and drying to form an anode active material layer 5 and a cathode active material layer 6, respectively.
陽極活物質層５と陰極活物質層６との間には、セパレー
タ７及び電解液保持体群８が両活物質屓の表面と接触す
るように配置されている。セパレータ７は、絶縁性、耐
酸性及び撥水性を有するフッ素樹脂等から形成されてい
る。本実施例で用いるセパレータ７は、隣接する２つの
横桟７ａが順次縦桟７ｂ・・・で連結されたてジグザグ
状に形成されている。このセパレータ７は、横桟７ａに
よって上下方向に分散された４つの矩形状の溝からなる
分離スペース９ａ〜９ｄを形成している。A separator 7 and an electrolyte holder group 8 are arranged between the anode active material layer 5 and the cathode active material layer 6 so as to be in contact with the surfaces of both active materials. The separator 7 is made of a fluororesin or the like that has insulation, acid resistance, and water repellency. The separator 7 used in this embodiment has a vertical zigzag shape in which two adjacent horizontal bars 7a are successively connected by vertical bars 7b... This separator 7 forms separation spaces 9a to 9d consisting of four rectangular grooves vertically distributed by horizontal bars 7a.
そしてこれらの分離スペース９ａ〜９ｄ内には４つの電
解液保持体８ａ〜８ｄが収納されて保持される。これら
の電解液保持体８ａ〜８ｄとしては、例えば、ガラス繊
維からなる不織布にゲル状の電解液を含浸させたものを
用いることができる。Four electrolyte holders 8a to 8d are housed and held within these separation spaces 9a to 9d. As these electrolyte solution holders 8a to 8d, for example, a nonwoven fabric made of glass fiber impregnated with a gel electrolyte solution can be used.
また横桟７ａの数を増やして分離スペースを小さくした
場合には、ケイソウ上等の粉体やシリカ粒子を分散させ
た溶液に硫酸を加えてゲル状またはペースト状にした電
解液保持体をスクリーン印刷法を用いて分離スペース９
ａ〜９ｄ内に充填することができる。なおスクリーン印
刷法を用いる場合には、セパレータ７を一方の活物質層
の上に配置した状態で電解液保持体を充填するようにす
ればよい。In addition, when the number of horizontal bars 7a is increased to reduce the separation space, an electrolyte holder made by adding sulfuric acid to a solution in which diatomaceous powder or silica particles are dispersed to form a gel or paste is used as a screen. Separation space 9 using printing method
It can be filled in a to 9d. Note that when using the screen printing method, the electrolyte holder may be filled with the separator 7 placed on one of the active material layers.
電槽は、重合させた合成樹脂体１及び２の周囲を熱溶着
することにより形成される。なお電槽を作る場合に、一
部に未溶着部を作り、そこをガス抜き部とすることがで
きる。The battery case is formed by thermally welding the peripheries of the polymerized synthetic resin bodies 1 and 2. Note that when making a battery case, a part of the unwelded part can be made and used as a gas venting part.
第２図（Ａ）ないしくＣ）は、セパレータの変形例を示
している。第２図（Ａ）のセパレータ７１は櫛歯状を呈
しており、第１図の実施例で用いるセパレータ７と同様
に、２つの横桟７１ａの間に矩形状の溝からなる分離ス
ペースが形成される。FIGS. 2(A) to 2(C) show modified examples of the separator. The separator 71 in FIG. 2(A) has a comb-like shape, and like the separator 7 used in the embodiment in FIG. 1, a separation space consisting of a rectangular groove is formed between the two horizontal bars 71a. be done.
第２図（Ｂ）はセパレータ・シートに分離スペースを形
成する複数の菱形の貫通孔及び溝７２ａを、はぼ均等に
むらな（形成してなるエキスバンド状のセパレータ７２
を示しており、また第３図（Ｃ）は分離スペースを形成
する六角形の貫通孔及び溝７３ａが、はぼ均等にむらな
く形成されたハニカム状のセパレータ７３を示している
。第２図（Ｂ）及び（Ｃ）に示したセパレータ７２及び
７３は、スクリーン印刷法で電解液保持体を充填するの
に適しており、複数の分離スペースを小さな貫通孔又は
溝７２ａ及び７３ａによって形成すると、活物質層の表
面全体にむらなくガス通路を形成することができる。な
お分離スペースを形成するための貫通孔及び溝の形状は
任意である。FIG. 2(B) shows an expanded separator 72 formed by forming a plurality of diamond-shaped through holes and grooves 72a that form separation spaces in the separator sheet in an even and uneven manner.
3(C) shows a honeycomb-shaped separator 73 in which hexagonal through holes and grooves 73a forming separation spaces are formed evenly and evenly. The separators 72 and 73 shown in FIGS. 2(B) and 2(C) are suitable for filling with electrolyte carriers by screen printing, with multiple separation spaces formed by small through holes or grooves 72a and 73a. When formed, gas passages can be formed evenly over the entire surface of the active material layer. Note that the shapes of the through holes and grooves for forming the separation space are arbitrary.
上記本発明の電池の性能を従来の電池の性能と比較する
ために、第１図に示した構造の蓄電池と、１枚の電解液
保持体（リテーナ）を用いた従来の蓄電池とを用意して
電池内圧試験を行った。電池内圧試験の条件は、放電後
の充電時の電池内圧変化であり、充電条件としては１ｃ
カツトの２，５Ｖ／セルの定電流定電圧充電であった。In order to compare the performance of the battery of the present invention with that of a conventional battery, a storage battery having the structure shown in FIG. 1 and a conventional storage battery using a single electrolyte holder (retainer) were prepared. A battery internal pressure test was conducted. The conditions for the battery internal pressure test are the change in battery internal pressure during charging after discharging, and the charging condition is 1c.
It was a constant current constant voltage charge of 2.5V/cell.
電池内圧試験の結果は第３図に示す通りであった。The results of the battery internal pressure test were as shown in FIG.
第３図において、Ａは本発明の電池の内圧変化、Ｂは従
来の電池の内圧変化である。この結果から判るように、
本発明の方法で製造した電池Ａでは電池内圧はかなり低
くなっていおり、酸素ガスの吸収が良好であることが判
る。なお第２図（Ｂ）及び（Ｃ）に示したタイプのセパ
レータを用いると、更に酸素ガスの吸収は良好となり、
内圧を更に小さ（することができる。In FIG. 3, A is the internal pressure change of the battery of the present invention, and B is the internal pressure change of the conventional battery. As can be seen from this result,
In Battery A manufactured by the method of the present invention, the internal pressure of the battery was considerably lower, indicating that oxygen gas was well absorbed. In addition, if the type of separator shown in FIG. 2 (B) and (C) is used, the absorption of oxygen gas will be even better,
The internal pressure can be further reduced.
上記実施例は、単位セルの密閉形鉛蓄電池であるが、本
発明は単位セルに限定されるものではない。また上記実
施例では電槽を熱溶着可能な合成樹脂体１及び２で形成
しているが、他の構成の電槽を用いることもできる。Although the above embodiment is a unit cell sealed lead-acid battery, the present invention is not limited to unit cells. Further, in the above embodiment, the battery case is formed of heat-weldable synthetic resin bodies 1 and 2, but a battery case of other construction may also be used.
［発明の効果］
本発明によれば、陰極板での酸素ガス吸収を従来よりも
良好なものとすることができ、寿命特性を改善して、し
かも過充電時の内圧を小さくすることができる。[Effects of the Invention] According to the present invention, the absorption of oxygen gas by the cathode plate can be made better than before, the life characteristics can be improved, and the internal pressure during overcharging can be reduced. .
また複数の分離スペースを上下方向に分散せるようにセ
パレータを構成し、電解液保持体を上下方向に分散させ
ると、従来よりも全体的に見た電解液の濃度差を小さく
することができる。Further, by configuring the separator so that a plurality of separation spaces are distributed in the vertical direction, and by dispersing the electrolyte solution holders in the vertical direction, the overall concentration difference of the electrolyte solution can be made smaller than in the past.
またセパレータとして、セパレータ用シートに複数の貫
通孔及び溝の少なくとも一方をむらなく分散形成したセ
パレータを用いると、酸素ガスの通路を陰極活物質層と
陽極活物質層との間にむらなく形成することができ、ガ
ス吸収を極めて良好に行わせることができる。Furthermore, if a separator is used in which at least one of a plurality of through holes and grooves are evenly distributed in a separator sheet, oxygen gas passages can be evenly formed between the cathode active material layer and the anode active material layer. This allows for extremely good gas absorption.
第１図は本発明の一実施例の密閉形鉛蓄電池の分解斜視
図、第２図（Ａ）乃至（Ｃ）はそれぞれ本発明の他の実
施例で用いるセパレータの概略構成を示す斜視図、第３
図は従来の密閉形鉛蓄電と本発明の密閉形鉛蓄電の充電
時の電池内圧変化を示す線図である。FIG. 1 is an exploded perspective view of a sealed lead-acid battery according to one embodiment of the present invention, and FIGS. 2(A) to (C) are perspective views showing the schematic structure of a separator used in other embodiments of the present invention, respectively. Third
The figure is a diagram showing changes in battery internal pressure during charging of a conventional sealed lead storage battery and a sealed lead storage battery of the present invention.
Claims (3)
集電体の上に陽極活物質層が形成され、前記陰極活物質
層と陽極活物質層との間に電解液保持体が配置されてな
る極板群を備えた密閉形鉛蓄電池において、 前記陰極活物質層及び陽極活物質層の一部と接触して前
記陰極活物質層と陽極活物質層との間に複数の分離スペ
ースを形成する耐酸性及び撥水性を有するセパレータが
前記陰極活物質層と陽極活物質層との間に配置され、 前記複数の分離スペース内に前記電解液保持体が保持さ
れていることを特徴とする密閉形鉛蓄電池。(1) A cathode active material layer is formed on the cathode current collector, an anode active material layer is formed on the anode current collector, and an electrolyte is retained between the cathode active material layer and the anode active material layer. In a sealed lead-acid battery comprising a group of electrode plates in which a body is arranged, a plurality of electrode plates are in contact with the cathode active material layer and a part of the anode active material layer between the cathode active material layer and the anode active material layer. A separator having acid resistance and water repellency that forms separation spaces is disposed between the cathode active material layer and the anode active material layer, and the electrolyte holder is held within the plurality of separation spaces. A sealed lead-acid battery featuring:
方向に分散するように構成されている請求項１に記載の
密閉形鉛蓄電池。(2) The sealed lead-acid battery according to claim 1, wherein the separator is configured such that the plurality of separation spaces are vertically dispersed.
貫通孔及び溝の少なくとも一方をむらなく分散形成して
構成されている請求項１に記載の密閉形鉛蓄電池。(3) The sealed lead-acid battery according to claim 1, wherein the separator is formed by uniformly distributing at least one of a plurality of through holes and grooves on a separator sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083137A JP2737227B2 (en) | 1989-03-31 | 1989-03-31 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083137A JP2737227B2 (en) | 1989-03-31 | 1989-03-31 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02262237A true JPH02262237A (en) | 1990-10-25 |
| JP2737227B2 JP2737227B2 (en) | 1998-04-08 |
Family
ID=13793815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1083137A Expired - Lifetime JP2737227B2 (en) | 1989-03-31 | 1989-03-31 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2737227B2 (en) |
-
1989
- 1989-03-31 JP JP1083137A patent/JP2737227B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2737227B2 (en) | 1998-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5047300A (en) | Ultra-thin plate electrochemical cell | |
| US4539268A (en) | Sealed bipolar multi-cell battery | |
| KR101951453B1 (en) | Battery, battery plate assembly, and method of assembly | |
| US4603093A (en) | Lead-acid battery | |
| US6887620B2 (en) | Bipolar electrochemical battery of stacked wafer cells | |
| EP0512417B1 (en) | Zinc secondary battery having bipolar plate construction with horizontally disposed battery components | |
| CA2333017C (en) | Electrochemical battery structure and method | |
| US5059496A (en) | Nickel-hydrogen battery with oxygen and electrolyte management features | |
| EP0494147B1 (en) | Ultra-thin plate electrochemical cell | |
| EP0114484B1 (en) | Improved rechargeable lead-hydrogen electrical cell | |
| US5993494A (en) | Method of manufacturing modular components for a bipolar battery and the resulting bipolar battery | |
| US3759746A (en) | Porous electrode comprising a bonded stack of pieces of corrugated metal foil | |
| US4194060A (en) | Electric accumulator and storage cell | |
| CN114284463B (en) | Composite lithium supplementing sheet and battery cell and battery provided with same | |
| CA3103488C (en) | Bipolar lead acid battery cells with increased energy density | |
| JP2737227B2 (en) | Sealed lead-acid battery | |
| JPH069144B2 (en) | Sealed lead acid battery | |
| US3553017A (en) | Storage battery constituting a closed system | |
| JP2982545B2 (en) | Sealed storage battery | |
| JPS6266557A (en) | Jar of lead-storage battery | |
| JPH0883624A (en) | Sealed storage battery | |
| JPH0658808B2 (en) | Sealed lead acid battery | |
| JPH1032018A (en) | Sealed type lead-acid battery | |
| Rowlette | Sealed bipolar multi-cell battery | |
| JPH1079261A (en) | Sealed lead-acid battery |