JPH0318306B2 - - Google Patents
Info
- Publication number
- JPH0318306B2 JPH0318306B2 JP56215735A JP21573581A JPH0318306B2 JP H0318306 B2 JPH0318306 B2 JP H0318306B2 JP 56215735 A JP56215735 A JP 56215735A JP 21573581 A JP21573581 A JP 21573581A JP H0318306 B2 JPH0318306 B2 JP H0318306B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- substrate
- alloy
- lattice
- lead alloy
- 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 - Lifetime
Links
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 14
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000012462 polypropylene substrate Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Description
【発明の詳細な説明】
本発明は、軽量で集電の際の電圧特性に優れた
鉛蓄電池用格子体の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a grid for lead-acid batteries that is lightweight and has excellent voltage characteristics during current collection.
一般に、鉛蓄電池の極板には鉛合金製の格子体
が使用されているが、その機能は、主として活物
質の保持と充放電時の導電経路の維持とにある。
ところが、活物質の保持のためには特に鉛合金を
利用する必要はなく、また、導電経路の維持のた
めにはより少量の鉛合金だけで十分である。そこ
で、電池のコスト引き下げおよび軽量化を目的と
して、格子体の機能を低下させることなく可能な
限り鉛合金を他の低コストかつ軽量な材料に置き
換えることが有効となり、たとえば、従来、鉛合
金と合成樹脂とからなる種々の複合格子体が提案
されている。この例として、集電体部分を鉛合金
にて鋳造し、その鋳造した鉛合金集電体を合成樹
脂用の金型に挿入して固定した後、金型に合成樹
脂を流し込んで一体成形する鉛合金−合成樹脂複
合格子体や、合成樹脂からなる基板に線状あるい
はシート状の鉛合金を巻き付けた鉛合金−合成樹
脂複合格子体が考案されている。 Generally, a lead alloy grid is used in the electrode plates of lead-acid batteries, and its function is primarily to retain active material and maintain conductive paths during charging and discharging.
However, there is no particular need to use a lead alloy to retain the active material, and a smaller amount of lead alloy is sufficient to maintain the conductive path. Therefore, in order to reduce the cost and weight of batteries, it is effective to replace lead alloy with other low-cost and lightweight materials as much as possible without reducing the function of the lattice. Various composite lattice bodies made of synthetic resins have been proposed. As an example of this, the current collector part is cast from a lead alloy, the cast lead alloy current collector is inserted into a synthetic resin mold and fixed, and then the synthetic resin is poured into the mold and integrally formed. A lead alloy-synthetic resin composite lattice body and a lead alloy-synthetic resin composite lattice body in which a linear or sheet-shaped lead alloy is wound around a substrate made of synthetic resin have been devised.
しかし、上記従来のものはいずれも製造工程が
複雑であるため、ある程度の軽量化は図れるもの
の生産性が悪く、大量生産には向いていないので
コストアツプになるという欠点があつた。 However, all of the above-mentioned conventional products have complicated manufacturing processes, so although they can achieve some weight reduction, productivity is poor and they are not suitable for mass production, resulting in increased costs.
そこで本発明は、軽量かつ電圧特性に優れてい
るのみならず簡単な工程で効率良く生産できる鉛
蓄電池用格子体を得ることを目的とするものであ
る。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to obtain a lead-acid battery lattice body that is not only lightweight and has excellent voltage characteristics, but also can be efficiently produced in a simple process.
この目的を達成するために、本発明は、耐酸性
の合成樹脂からなり少なくとも集電体の部分とそ
の周辺の格子部分とに溝を有する格子状基板を用
意し、
この基板を溶融鉛または溶融鉛合金に浸漬する
か、あるいはこの基板に溶融鉛または溶融鉛合金
を注ぎかけて、
この基板の表面に鉛薄膜または鉛合金薄膜を付
着させ、かつ前記溝の部分には他の部分よりも多
量の鉛または鉛合金を付着させることを特徴とす
る鉛蓄電池用格子体の製造法を提案するものであ
る。 In order to achieve this object, the present invention prepares a lattice-shaped substrate made of acid-resistant synthetic resin and having grooves in at least the current collector part and the surrounding lattice part, A thin lead film or a thin lead alloy film is deposited on the surface of the substrate by immersing it in a lead alloy or by pouring molten lead or a molten lead alloy onto the substrate, and a larger amount is deposited in the grooves than in other areas. The present invention proposes a method for manufacturing a grid for lead-acid batteries, which is characterized by depositing lead or a lead alloy.
上記方法によつて、軽量でしかも溝の部分には
鉛または鉛合金の層が厚く形成されることから電
圧特性に優れているのみならず簡単な工程で効率
良く生産できる格子体を得ることができるもので
ある。 By the above method, it is possible to obtain a lattice body that is lightweight, has a thick layer of lead or lead alloy formed in the grooves, and therefore not only has excellent voltage characteristics but also can be produced efficiently using a simple process. It is possible.
以下、本発明の一実施例を図面にもとづいて説
明する。第１図ａ，ｂに示すように、たとえば幅
２mm、深さ１mmの溝１を有するポリプロピレン製
格子状基板２を、335℃付近の温度にコントロー
ルされた溶融鉛に浸漬し、約0.3秒後に引き上げ
て冷水にて冷却する。これによつて、第２図に示
すようにポリプロピレン基板２の表面に鉛薄膜３
が付着され、鉛−ポリプロピレン複合格子体４が
形成される。 Hereinafter, one embodiment of the present invention will be described based on the drawings. As shown in FIGS. 1a and 1b, a polypropylene lattice-shaped substrate 2 having grooves 1 with a width of 2 mm and a depth of 1 mm, for example, is immersed in molten lead whose temperature is controlled at around 335°C, and after about 0.3 seconds Remove and cool with cold water. As a result, as shown in FIG. 2, a lead thin film 3 is formed on the surface of the polypropylene substrate 2.
is deposited to form a lead-polypropylene composite lattice body 4.
ここで、第２図ｂに示すように、溝１部分に特
に付着鉛３の量が多くなるものである。この現象
は以下の様に説明することができる。すなわち、
浸漬するポリプロピレン基板２の温度が鉛の融点
より低いため、この基板２によつて周囲の溶融鉛
が熱を奪われて瞬間的に凝固し、その時に引き上
げることによつて鉛薄膜が形成されることにな
る。特に、溝１部分では単位体積当たりの鉛がポ
リプロピレン基板２と接触する面積が他の部分に
比べて大きいため、このポリプロピレン基板２に
よつて溶融鉛から奪われる熱量が多く、その結果
として凝固する鉛量が多くなると考えられる。た
だし、この現象は溝１の形状、幅、深さに影響を
受け、本発明者の行なつた実験では、溝１を鉛で
完全に埋めるには溝１の入口部が広く、奥部が狭
くなつている形状が望ましく、溝１の幅は2.5mm
以下で良好な結果を示した。これ以上幅が広くな
つた場合には、鉛の表面張力等の関係で膜の形成
が阻害され、溝１を十分に埋めることができなか
つた。 Here, as shown in FIG. 2b, the amount of lead 3 deposited is particularly large in the groove 1 portion. This phenomenon can be explained as follows. That is,
Since the temperature of the polypropylene substrate 2 to be immersed is lower than the melting point of lead, the surrounding molten lead is absorbed by this substrate 2 and instantly solidifies, and is then pulled up to form a lead thin film. It turns out. In particular, in the groove 1 portion, the area in which lead per unit volume contacts the polypropylene substrate 2 is larger than in other portions, so a large amount of heat is removed from the molten lead by the polypropylene substrate 2, resulting in solidification. It is thought that the amount of lead increases. However, this phenomenon is affected by the shape, width, and depth of groove 1, and in experiments conducted by the present inventor, it was found that in order to completely fill groove 1 with lead, the entrance of groove 1 must be wide, and the deep part must be wide. A narrow shape is preferable, and the width of groove 1 is 2.5 mm.
Good results were shown below. If the width was wider than this, the formation of the film would be inhibited due to the surface tension of lead, and the groove 1 could not be filled sufficiently.
なお、溝１は、第１図ｂに示すような基板２の
表面上だけでなく、ｃのように内側にも設けるこ
とができる。さらに、第３図に示すように電流の
集中する集電体５部分およびその周辺にのみ溝１
を設けた基板２ａを利用すれば、特に軽量でかつ
電圧特性の優れた電池を形成することができる。 Note that the groove 1 can be provided not only on the surface of the substrate 2 as shown in FIG. 1b, but also on the inside as shown in FIG. 1c. Furthermore, as shown in FIG.
By using the substrate 2a provided with this, it is possible to form a battery that is particularly lightweight and has excellent voltage characteristics.
以上述べたように本発明によると、軽量でしか
も溝の部分には鉛または鉛合金の層が厚く形成さ
れることから電圧特性に優れた格子体を得ること
ができるのみならず、この格子体は従来のものに
比べて簡単な工程で連続して効率よく生産するこ
とができ、さらに合成樹脂基体を全体に薄く被覆
する鉛または鉛合金の薄膜が腐食されても、溝部
分の厚い鉛または鉛合金は容易に腐食されずに残
るため、耐腐性能を大きく向上させることがで
き、陽極板にも使用することが可能である。 As described above, according to the present invention, it is possible not only to obtain a lattice body that is lightweight and has excellent voltage characteristics because a thick layer of lead or lead alloy is formed in the groove portions, but also to provide a lattice body that is lightweight and has excellent voltage characteristics. can be produced continuously and efficiently using a simpler process than conventional ones, and even if the thin lead or lead alloy thin film covering the entire synthetic resin base is corroded, the thick lead or lead alloy in the grooves can be easily produced. Since lead alloys are not easily corroded and remain, their corrosion resistance can be greatly improved and they can also be used in anode plates.
第１図は溝を有するポリプロピレン基板の例を
示し、ａはその正面図、ｂはａの−断面図、
ｃは他の断面形状を示す図、第２図は第１図に示
す基板に鉛を付着させてなる格子体を示し、ａは
その正面図、ｂはａの−断面図、第３図は部
分的に溝を有するポリプロピレン基板の例を示
し、ａはその正面図、ｂはａの−断面図であ
る。
１……溝、２，２ａ……ポリプロピレン製格子
状基板、３……鉛薄膜、４……格子体。
FIG. 1 shows an example of a polypropylene substrate with grooves, a is a front view thereof, b is a cross-sectional view of a,
c is a diagram showing another cross-sectional shape, FIG. 2 is a lattice body made by adhering lead to the substrate shown in FIG. 1, a is a front view thereof, b is a cross-sectional view of a, and FIG. An example of a polypropylene substrate partially having grooves is shown, in which a is a front view thereof and b is a sectional view taken from a. 1... Groove, 2, 2a... Polypropylene lattice substrate, 3... Lead thin film, 4... Grid body.
Claims (1)
５の部分とその周辺の格子部分とに溝１を有する
格子状基板２を用意し、 この基板２を溶融鉛または溶融鉛合金に浸漬す
るか、あるいはこの基板に溶融鉛または溶融鉛合
金を注ぎかけて、 この基板２の表面に鉛薄膜または鉛合金薄膜３
を付着させ、かつ前記溝の部分には他の部分より
も多量の鉛または鉛合金３を付着させることを特
徴とする鉛蓄電池用格子体の製造法。[Claims] 1. A lattice-shaped substrate 2 made of acid-resistant synthetic resin and having grooves 1 in at least the current collector 5 portion and the surrounding lattice portion is prepared, and this substrate 2 is made of molten lead or molten lead. A thin lead film or a thin lead alloy film 3 is formed on the surface of this substrate 2 by immersing it in the alloy or by pouring molten lead or molten lead alloy onto this substrate 2.
A method for producing a grid for a lead-acid battery, characterized in that a larger amount of lead or lead alloy 3 is attached to the groove portion than to other portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56215735A JPS58115767A (en) | 1981-12-28 | 1981-12-28 | Method for manufacturing grids for lead-acid batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56215735A JPS58115767A (en) | 1981-12-28 | 1981-12-28 | Method for manufacturing grids for lead-acid batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58115767A JPS58115767A (en) | 1983-07-09 |
| JPH0318306B2 true JPH0318306B2 (en) | 1991-03-12 |
Family
ID=16677321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56215735A Granted JPS58115767A (en) | 1981-12-28 | 1981-12-28 | Method for manufacturing grids for lead-acid batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58115767A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662545B1 (en) * | 1990-05-25 | 1992-08-28 | Sorapec | COLLECTOR SUPPORT FOR LEAD / LEAD OXIDE BATTERY ELECTRODES. |
| JP2009271483A (en) * | 2008-05-02 | 2009-11-19 | Akimi Sato | Learning material for reading and writing hiragana and katakana |
-
1981
- 1981-12-28 JP JP56215735A patent/JPS58115767A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58115767A (en) | 1983-07-09 |
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