JPS6236207Y2 - - Google Patents
Info
- Publication number
- JPS6236207Y2 JPS6236207Y2 JP1981095315U JP9531581U JPS6236207Y2 JP S6236207 Y2 JPS6236207 Y2 JP S6236207Y2 JP 1981095315 U JP1981095315 U JP 1981095315U JP 9531581 U JP9531581 U JP 9531581U JP S6236207 Y2 JPS6236207 Y2 JP S6236207Y2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- winding start
- plate
- electrode plate
- spiral electrode
- 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
Links
- 238000004804 winding Methods 0.000 claims description 9
- 239000005871 repellent Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002940 repellent Effects 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 description 8
- 239000011149 active material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 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
- 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)
Description
【考案の詳細な説明】
本考案は渦巻状極板群を内蔵してなる密閉型ア
ルカリ蓄電池に関するもので、特にセパレータの
みからなる巻き始め部分に撥水性を付与すること
により、余剰電解液を極板間のセパレータに供給
して放電特性を向上せしめることを目的とする。[Detailed description of the invention] The present invention relates to a sealed alkaline storage battery with a built-in spiral electrode plate group.In particular, by imparting water repellency to the winding start portion consisting only of separators, excess electrolyte can be removed. The purpose is to supply it to the separator between the plates to improve the discharge characteristics.
従来この種のアルカリ蓄電池においては、例え
ばセパレータを介して陽極板と陰極板を対向せし
め渦巻状極板群とする際その中心部の一周はセパ
レータのみで巻かれており、そのために陽極板も
陰極板も鋭角的に折り曲げられることがないため
極板を構成する焼結体及び活物質が脱落すること
は殆んどなく、脱落物がセパレータを貫通し、対
極板に接触して生じる内部短絡の原因は解消でき
る。しかし極板群中心部の巻き始め部を形成する
セパレータ部分は活物質を含有する極板により挾
持されていないために偏つて渦巻状極板群に添加
された電解液が吸収保持されているために陰、陽
極板に挾持されているセパレータ部分に対する放
電時における電解液量の供給不足を招き、ひいて
は放電特性の劣化の原因となつていた。 Conventionally, in this type of alkaline storage battery, for example, when an anode plate and a cathode plate are opposed to each other with a separator in between to form a spiral electrode group, one circumference of the central part is wrapped only with the separator, so that the anode plate and the cathode plate are also connected to the cathode. Since the plate is not bent at an acute angle, the sintered body and active material that make up the electrode plate are unlikely to fall off, and there is no risk of internal short circuits caused by falling objects penetrating the separator and coming into contact with the return electrode plate. The cause can be fixed. However, since the separator part that forms the winding start part at the center of the electrode plate group is not held between the electrode plates containing the active material, the electrolyte added to the spiral electrode group is unevenly absorbed and retained. This results in insufficient supply of electrolyte to the separator portion held between the negative and anode plates during discharge, which in turn causes deterioration of discharge characteristics.
本考案はセパレータのみからなる巻き始め部分
を撥水処理することで上述のような欠点を改良し
たものであり、以下図面によつてその実施例を詳
細に説明する。第１図において、１は帯状の陽極
板でセパレータ２を介して帯状の陰極板３と対向
している。セパレータ２においてその巻き始め部
分４は電解液に対して撥水処理されている。撥水
処理としては、例えばセパレータ２の該部分４に
シリコン油を含浸するか、あるいは該部分をさら
に加圧圧縮するか、またはセパレータ２が熱可塑
性を有する合成繊維により作られている場合は、
該セパレータ２の巻き始め部分４を加熱溶融して
変形させることにより合成繊維の多孔部分を完全
につぶす等の方法がある、このような撥水処理を
することにより該部分４は電解液に対して濡れ難
くなることからセパレータ２のみにより構成され
た空間部５に渦巻状極板群に添加された電解液中
余分の電解液が遊離状態で保有される結果、該遊
離状態の電解液は放電反応に伴い陽極板１と陰極
板３とに挾持されているセパレータ部分に円滑に
保給される。 The present invention improves the above-mentioned drawbacks by water-repelling the winding start portion consisting only of separators, and examples thereof will be described in detail below with reference to the drawings. In FIG. 1, a strip-shaped anode plate 1 faces a strip-shaped cathode plate 3 with a separator 2 in between. The winding start portion 4 of the separator 2 is treated to be water repellent to the electrolyte. The water repellent treatment can be carried out, for example, by impregnating the portion 4 of the separator 2 with silicone oil, or by further pressurizing the portion, or if the separator 2 is made of synthetic fibers having thermoplasticity,
There is a method of completely crushing the porous part of the synthetic fiber by heating and melting the winding start part 4 of the separator 2 and deforming it.By performing such water repellent treatment, the part 4 becomes resistant to the electrolyte. Therefore, the excess electrolyte in the electrolyte added to the spiral electrode plate group is held in a free state in the space 5 formed only by the separator 2, and as a result, the free electrolyte is discharged. As the reaction progresses, the separator portion sandwiched between the anode plate 1 and the cathode plate 3 is smoothly retained.
すなわちこのような本考案の電池Ａと、セパレ
ータ巻き始め部を撥水処理しない従来の電池Ｂと
の放電性能を比較した結果を第２図に示す。同図
から明らかなように本考案の電池Ａは従来品Ｂに
比べて放電特性に優れている。 That is, FIG. 2 shows the results of a comparison of the discharge performance of the battery A of the present invention and a conventional battery B in which the separator winding start portion is not subjected to water repellent treatment. As is clear from the figure, the battery A of the present invention has better discharge characteristics than the conventional product B.
第１図は本考案の一実施例における蓄電池の渦
巻状極板群を示す横断面図、第２図は本考案の電
池と従来の電池の放電性能の比較図である。
１……陽極板、２……セパレータ、３……陰極
板、４……セパレータ２の撥水処理された巻き始
め部分、５……セパレータ２の巻き始め部分に形
成された空間部。
FIG. 1 is a cross-sectional view showing a spiral electrode plate group of a storage battery according to an embodiment of the present invention, and FIG. 2 is a comparison diagram of the discharge performance of the battery of the present invention and a conventional battery. 1... Anode plate, 2... Separator, 3... Cathode plate, 4... Water-repellent winding start portion of separator 2, 5... Space formed in the winding start portion of separator 2.
Claims (1)
なる渦巻状極板群において、該渦巻状極板群の中
心部のセパレータのみにより形成された巻き始め
部分が撥水処理されていることを特徴とする密閉
型アルカリ蓄電池。 A spiral electrode plate group consisting of an anode plate and a cathode plate corresponding to each other via a separator is characterized in that a winding start portion formed only by the separator at the center of the spiral electrode plate group is treated to be water repellent. Sealed alkaline storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981095315U JPS5873561U (en) | 1981-06-26 | 1981-06-26 | Sealed alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981095315U JPS5873561U (en) | 1981-06-26 | 1981-06-26 | Sealed alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5873561U JPS5873561U (en) | 1983-05-18 |
| JPS6236207Y2 true JPS6236207Y2 (en) | 1987-09-14 |
Family
ID=29890224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981095315U Granted JPS5873561U (en) | 1981-06-26 | 1981-06-26 | Sealed alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873561U (en) |
-
1981
- 1981-06-26 JP JP1981095315U patent/JPS5873561U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5873561U (en) | 1983-05-18 |
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