JPS62147651A - Storage battery - Google Patents
Storage batteryInfo
- Publication number
- JPS62147651A JPS62147651A JP60289065A JP28906585A JPS62147651A JP S62147651 A JPS62147651 A JP S62147651A JP 60289065 A JP60289065 A JP 60289065A JP 28906585 A JP28906585 A JP 28906585A JP S62147651 A JPS62147651 A JP S62147651A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- water
- porous sheet
- water repellent
- synthetic resin
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- 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)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は排気栓を有するＭｉｉｔ池の改良に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement of a Miit pond with a vent plug.
従来技術とその問題点
従来より微孔フィルターとゴム弁とを組合わせた蓄電池
用排気栓は種々提案されている。この種の排気栓では電
機孔フィルターにより電池内より発生するガスに伴う酸
霧を除去することにより漏液を防止し、ゴム弁により電
池内圧を調整する機能を有している。従来よりこの微孔
フィルターとしては下記のものが提案されている０
（１） 合成樹脂粉末又は無機粉末等を焼結した後に
シリコン等で撥水処理を施した微孔体。Prior Art and its Problems Various exhaust plugs for storage batteries have been proposed that combine microporous filters and rubber valves. This type of exhaust plug has the function of preventing liquid leakage by removing acid mist accompanying gas generated from inside the battery using an electric pore filter, and adjusting the internal pressure of the battery using a rubber valve. The following microporous filters have been proposed in the past: (1) A microporous body made of sintered synthetic resin powder or inorganic powder and then water-repellent treated with silicone or the like.
（２四弗化エチレン樹脂の微粒子の分散液を混練してシ
ート化することにより得た四弗化エチレン樹脂のみから
なる微孔体。(A microporous body made only of tetrafluoroethylene resin obtained by kneading a dispersion of fine particles of 2tetrafluoroethylene resin and forming it into a sheet.
しかし、上記（１）では撥水処理剤の塗布量に限界があ
り、処理剤の流出や汚れ等のために長期間にわたって撥
水性を維持することができないという欠点があった。ま
た、上記（２）では撥水性には優れているが、骨材を有
しないために機械的強度が弱く、電池内圧上昇時に微孔
体に伸びが生じて撥水性能が低下するという欠点があっ
たり
一方上記以外のものとしては、織布等に四弗化エチレン
樹脂等を被覆することにより撥水性を与えたシートを用
いるものがあるが、均一に織布の繊維部のみに四弗化エ
チレン樹脂を被覆することが難しく、必要な通気性を有
するシートを形成することが困難であるという欠点があ
った。However, in (1) above, there is a limit to the amount of the water repellent treatment agent applied, and water repellency cannot be maintained for a long period of time due to outflow of the treatment agent, stains, etc. In addition, although (2) above has excellent water repellency, it has weak mechanical strength because it does not contain aggregate, and when the internal pressure of the battery increases, the microporous material stretches and the water repellency performance decreases. On the other hand, as a method other than the above, there is a sheet made of woven fabric coated with tetrafluoroethylene resin etc. to make it water repellent. There were drawbacks in that it was difficult to coat the ethylene resin and it was difficult to form a sheet with the necessary air permeability.
発明の目的
本発明は上記欠点を解消したもので、長期間にわたって
撥水性及び通気性を維持できる排気栓を提供するもので
ある。OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks and provides an exhaust plug that can maintain water repellency and breathability over a long period of time.
発明の構成
本発明は、撥水性合成樹脂を用いて予め被覆した繊維よ
り形成された多孔性シートを有する排気栓を備えたＵ？
Ｗ池である。Structure of the Invention The present invention provides an exhaust valve having an exhaust plug having a porous sheet made of fibers coated in advance with a water-repellent synthetic resin.
This is W Pond.
実施例 本発明の一実施例を図面に基づき詳述する。Example An embodiment of the present invention will be described in detail based on the drawings.
第１図は本発明蓄電池の要部断面図であり馬番電池１は
電ｔＦＩ２と蓋３よりなり、蓋３は排気栓４を備えてい
る。また、排気栓４は撥水性合成樹脂を用いて予め被覆
した繊維より形成された多孔性シート５を有し、該シー
ト５の上部にはゴム弁６を有している。ゴム弁６はガス
排出孔７を覆って配置されており、その上部には覆蓋８
が配置されている。FIG. 1 is a cross-sectional view of the essential parts of the storage battery of the present invention. The battery 1 consists of an electric tFI 2 and a lid 3, and the lid 3 is equipped with an exhaust plug 4. Further, the exhaust plug 4 has a porous sheet 5 made of fibers coated in advance with a water-repellent synthetic resin, and has a rubber valve 6 on the top of the sheet 5. The rubber valve 6 is arranged to cover the gas discharge hole 7, and a cover 8 is provided on the top of the rubber valve 6.
is located.
次に本発明に用いる多孔性シートの製造方法を説明する
。撥水性合成樹脂として四弗化エチレン樹脂を用い、該
樹脂により耐酸性を有する繊維径１００μの含アルカリ
ガラスファイバーを予め被覆する。次にこの被覆された
ガラスファイバーを用いて縦７０本、横５０本／１ｎｃ
ｈの多孔性シートを形成する。該シートは厚さ０．１８
群、引張強度５０〜６５に９／２０ｆｍ、透気変電１ｓ
ｅｃ／Ｉ Ｄｏ ｃｃ −ｉｎ２、耐水圧１５０＋＋ｍ
Ａ９の特性を有していた。なお、多孔性シートとしては
上記の様な織布のほかに、不織布又はネット等も使用で
きる。また、被覆される繊維としては上記ガラスファイ
バー以外にもステンレス繊維等の金ｍｍ＋維又は四弗化
エチレン樹脂よりも耐熱性を有するノーメックス繊維等
の有機繊維はもちろん、他のあらゆる繊維を使用するこ
とができる。更に撥水性合成樹脂としては上記四弗化二
本発明蓄電池は上記多孔性シートを直径２０簡に打抜い
て用いている。Next, a method for manufacturing a porous sheet used in the present invention will be explained. Tetrafluoroethylene resin is used as the water-repellent synthetic resin, and acid-resistant alkali-containing glass fibers having a fiber diameter of 100 μm are coated in advance with the resin. Next, using this coated glass fiber, 70 vertical fibers and 50 horizontal fibers/1 nc.
Form a porous sheet of h. The sheet has a thickness of 0.18
Group, tensile strength 50-65, 9/20fm, air permeable transformer 1s
ec/I Do cc-in2, water pressure 150++m
It had the characteristics of A9. In addition to the above-mentioned woven fabrics, non-woven fabrics or nets can also be used as the porous sheet. In addition to the above-mentioned glass fibers, the fibers to be coated may include organic fibers such as gold + fibers such as stainless steel fibers or Nomex fibers that have higher heat resistance than tetrafluoroethylene resin, as well as any other fibers. I can do it. Further, as the water-repellent synthetic resin, the above-mentioned difluoride storage battery of the present invention uses the above-mentioned porous sheet punched out into 20 pieces in diameter.
上記本発明蓄電池は転倒させても電解液の流出は認めら
れなかった。また、充電時の酸霧の流出も認められなか
った。更に従来の撥水剤であるシリコン等にみられた処
理剤の流出が生じないため、以上の作用効果は電池寿命
時まで長期間にわたって維持することができ、このこと
は他に類例をみないものである。Even when the storage battery of the present invention was overturned, no outflow of the electrolyte was observed. Furthermore, no acid mist was observed to flow out during charging. Furthermore, because there is no outflow of the treatment agent that occurs with conventional water repellents such as silicone, the above effects can be maintained for a long period of time until the end of the battery life, which is unprecedented. It is something.
更に本発明蓄電池は、フリーな電解液を充分に有する開
放形蓄電池及び実質的に非流動化された電解液を有する
密閉形蓄電池のいずれにも適用できるが、特に密閉形蓄
電池に用いるのが有効である。即ち、密閉形蓄電池の容
積効率を高めようとすると電池の上部空間をできるだけ
小さくする必要がある。しかし、従来の微孔フィルター
は長期の信頼性がないためにゴム弁にも電解液の流出防
止を期待する方法が採用されており、微孔フィルターを
通過した酸霧を還元するためにかなり大きな上部空間が
必要であった。本発明により通気性があって撥水性を有
する多孔性シートがゴム弁の下部に配置されることによ
って酸霧及び電解液の流出が長期にわたって確実に防止
されるため、はとんど上部空間を設ける必要がなくなり
、従来品に比べて容積効率が３０％向上した蓄電池が得
られた。なお、ゴム弁を設けずに前記多孔性シートのみ
を備えた排気栓でも有効に使用できる。Further, the storage battery of the present invention can be applied to both an open type storage battery having a sufficient amount of free electrolyte and a sealed type storage battery having a substantially non-fluidized electrolyte, but it is particularly effective for use in a sealed type storage battery. It is. That is, in order to increase the volumetric efficiency of a sealed storage battery, it is necessary to make the space above the battery as small as possible. However, because conventional microporous filters do not have long-term reliability, rubber valves are also used to prevent the electrolyte from flowing out. Head space was needed. According to the present invention, a breathable and water-repellent porous sheet is placed at the bottom of the rubber valve, which reliably prevents acid mist and electrolyte from flowing out over a long period of time. This eliminates the need for such a storage battery, resulting in a storage battery with a 30% improvement in volumetric efficiency compared to conventional products. Note that an exhaust plug provided with only the porous sheet without a rubber valve can also be effectively used.
なお、本発明で用いる多孔性シートの耐水圧や透気度は
織布時の繊維本数を変えることにより調節できる。また
、繊維の太さや形状を変えることによりシート厚さや孔
径も任意に調節できる。密閉形蓄電池の場合、電池内圧
が０．２ ｋＬｉ／ ｃｒｌ程度まで上昇することがあ
るが、織布を密に形成させることによって耐水圧を向上
せしめ漏液を防止することができる。The water pressure resistance and air permeability of the porous sheet used in the present invention can be adjusted by changing the number of fibers in the woven fabric. Furthermore, by changing the thickness and shape of the fibers, the sheet thickness and pore diameter can be adjusted as desired. In the case of a sealed storage battery, the battery internal pressure may rise to about 0.2 kLi/crl, but by forming the woven fabric densely, water pressure resistance can be improved and leakage can be prevented.
発明の効果
本発明はその特許請求の範囲に記載した通りの構成であ
るため、撥水性合成樹脂が繊維の全表面を確実に覆い、
且つ電池使用中に該撥水性合成樹脂が流出することがな
い。従って長期間にわたって撥水性及び通気性を維持す
ることができ、ポジションフリーの蓄電池を提供すると
共に容積効率を大巾に向上させることができ、その工業
的価値は大である。Effects of the Invention Since the present invention has the structure as described in the claims, the water-repellent synthetic resin reliably covers the entire surface of the fiber,
Moreover, the water-repellent synthetic resin does not leak out during use of the battery. Therefore, water repellency and air permeability can be maintained for a long period of time, and a position-free storage battery can be provided, while volumetric efficiency can be greatly improved, and its industrial value is great.
第１図は本発明蓄電池の要部断面図である。 ４：排気栓 ５：多孔性シート ６：ゴム弁 FIG. 1 is a sectional view of essential parts of the storage battery of the present invention. 4: Exhaust plug 5: Porous sheet 6: Rubber valve
Claims (1)
された多孔性シートを有する排気栓を備えたことを特徴
とする蓄電池。 ２）前記撥水性合成樹脂が、四弗化エチレン樹脂である
特許請求の範囲第１項記載の蓄電池。 ３）前記排気栓が、前記多孔性シートの上部にゴム弁を
有する特許請求の範囲第１項記載の蓄電池。 ４）前記繊維が、四弗化エチレン樹脂を用いて予め被覆
したガラスファイバーである特許請求の範囲第１項記載
の蓄電池。[Scope of Claims] 1) A storage battery comprising an exhaust plug having a porous sheet made of fibers coated in advance with a water-repellent synthetic resin. 2) The storage battery according to claim 1, wherein the water-repellent synthetic resin is a tetrafluoroethylene resin. 3) The storage battery according to claim 1, wherein the exhaust plug has a rubber valve on the top of the porous sheet. 4) The storage battery according to claim 1, wherein the fibers are glass fibers coated in advance with a tetrafluoroethylene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289065A JPS62147651A (en) | 1985-12-20 | 1985-12-20 | Storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289065A JPS62147651A (en) | 1985-12-20 | 1985-12-20 | Storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147651A true JPS62147651A (en) | 1987-07-01 |
Family
ID=17738369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60289065A Pending JPS62147651A (en) | 1985-12-20 | 1985-12-20 | Storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2645350A1 (en) * | 1989-03-30 | 1990-10-05 | Cipel | Enhancements to reversible valves intended for avoiding excess pressure in electrochemical generators |
| JPH02134652U (en) * | 1989-04-14 | 1990-11-08 | ||
| JP2012156489A (en) * | 2011-01-06 | 2012-08-16 | Mitsubishi Electric Corp | Storage element |
-
1985
- 1985-12-20 JP JP60289065A patent/JPS62147651A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2645350A1 (en) * | 1989-03-30 | 1990-10-05 | Cipel | Enhancements to reversible valves intended for avoiding excess pressure in electrochemical generators |
| JPH02134652U (en) * | 1989-04-14 | 1990-11-08 | ||
| JP2012156489A (en) * | 2011-01-06 | 2012-08-16 | Mitsubishi Electric Corp | Storage element |
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