JPS63244555A - Filter for storage battery exhaust stopper - Google Patents
Filter for storage battery exhaust stopperInfo
- Publication number
- JPS63244555A JPS63244555A JP62076951A JP7695187A JPS63244555A JP S63244555 A JPS63244555 A JP S63244555A JP 62076951 A JP62076951 A JP 62076951A JP 7695187 A JP7695187 A JP 7695187A JP S63244555 A JPS63244555 A JP S63244555A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- storage battery
- ceramic
- fluoroalkylsilane
- porous body
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052863 mullite Inorganic materials 0.000 abstract description 2
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 12
- 239000005871 repellent Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000008708 Morus alba Nutrition 0.000 description 1
- 240000000249 Morus alba Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- -1 polyfluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film 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
- 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
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
-
- 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】
〔発明の目的〕
（産業上の利用分野）
本発明は実用に充分な撥水性２通気性および強度を有す
る蓄電池排気栓用フィルターに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a filter for a storage battery exhaust plug that has practically sufficient water repellency, air permeability, and strength.
（従来の技術および問題点） 、
鉛蓄電池等の排気栓を構成するフィルターは通気性、ｔ
ａ水性９強度が要求される。蓄電池を充電すると電解液
が電気分解して水素と酸素が発生する。これらのガスは
フィルターに充分な通気性がないと電池内に滞留し、爆
発を起こしたり、内圧を高め強酸等の電解液の外部への
浴出を引き起こし、電池周辺機器を腐蝕したたりする。(Conventional technology and problems) The filters that make up the exhaust plugs of lead-acid batteries, etc.
a Water-based 9 strength is required. When a storage battery is charged, the electrolyte electrolyzes, producing hydrogen and oxygen. If the filter does not have sufficient air permeability, these gases will remain inside the battery and cause an explosion, or increase the internal pressure and cause electrolytes such as strong acids to leak out, corroding battery peripheral equipment.
また、（８水性がないと軽度の振動によっても電解液が
外部へ浴出するおそれがある。さらに振動等に耐える強
度も要求される。In addition, (8) if it is not aqueous, there is a risk that the electrolyte will leak out even with slight vibrations.Furthermore, it must have strength to withstand vibrations, etc.
このような特性を満足させるべ〈従来から種々のフィル
ターが検討されている。現在一般に使用されているフィ
ルターは耐電解液性、耐熱性に優れた無機物質２例えば
、溶融アルミナ、炭化珪素。Various filters have been studied to satisfy these characteristics. Filters commonly used at present are made of inorganic materials with excellent electrolyte resistance and heat resistance, such as fused alumina and silicon carbide.
シリカ等の多孔体をシリコン系撥水剤で処理したもので
ある。該フィルターを用いた排気栓は電池の振動によっ
て飛散した電解液により該ｔΩ水剤が分解し、撥水性が
低下し、その結果、排気栓から電解液が浴出する問題が
ある。また、溶融アルミナ等の多孔体を撥水性のフッ素
樹脂ディスパージョンで処理する方法が提案されている
が、この方法では多孔体の孔内部に均一にフッ素樹脂を
コーティングすることかできず、局部的にフッ素樹脂が
集まって、固まってしまい、孔をふさぎ、他の部分はま
ったくコーティングされない状態になつたりして、軽い
振動でも電解液が濡出してしまう欠点があった。さらに
、溶融アルミナ等の多孔体の端面に撥水性を有するフッ
素樹脂を含む多孔膜を形成させたり（特開昭４３−８５
１０）、排気栓内部に設けられたセラミックスまたは合
成樹脂等多孔体からなるフッ素の上面または側面あるい
は全表面にｔａ水性のポリフッ化エチレンまたは高密度
ポリエチレンからなるガス透過膜で覆ったもの（特開昭
６１−１６１６５５．特開昭６１−１６１６５６）が提
案されている。This is a porous material such as silica treated with a silicone water repellent. In an exhaust plug using the filter, the tΩ water solution is decomposed by the electrolyte scattered by the vibration of the battery, resulting in a decrease in water repellency, and as a result, there is a problem that the electrolyte comes out from the exhaust plug. In addition, a method has been proposed in which porous materials such as fused alumina are treated with a water-repellent fluororesin dispersion, but this method cannot uniformly coat the inside of the pores of the porous material with fluororesin, resulting in localized coating. The problem was that the fluororesin would collect and solidify, blocking the pores and leaving other parts completely uncoated, and the electrolyte would leak out even with slight vibrations. Furthermore, a porous film containing a water-repellent fluororesin is formed on the end face of a porous material such as fused alumina (Japanese Patent Laid-Open No. 43-85
10) A gas-permeable membrane made of TA water-based polyfluoroethylene or high-density polyethylene is covered on the top, side, or entire surface of a fluorine material made of porous material such as ceramics or synthetic resin provided inside the exhaust plug (Unexamined Japanese Patent Publication No. 1986-161655 (Japanese Unexamined Patent Publication No. 61-161656) has been proposed.
しかし、これらの方法は該層の通気性が充分でなく、発
生ガスが電池内に滞留したり、膜の多孔体への付着強度
が弱く、多孔体と多孔膜との間で、膜の別離や破れが発
生しやす（、電解液が多孔体内部へ侵入し、目づまりを
起こし電池が破裂する恐れがあった。However, in these methods, the permeability of the layer is not sufficient, resulting in the generated gas remaining in the battery, and the adhesion strength of the membrane to the porous body is weak, resulting in separation of the membrane between the porous body and the porous membrane. (There was a risk that the electrolyte would penetrate into the porous body, causing clogging and causing the battery to explode.)
（問題点を解決するための手段）
前記技術的課題を解決するための技術的手段は次の通り
である。(Means for solving the problem) The technical means for solving the above technical problem are as follows.
すなわち、蓄電池用排気栓の内部に設けたフィルターを
セラミック多孔体で形成し、前記セラミック多孔体は、
溶融アルミナ、炭化珪素、シリカ。That is, the filter provided inside the exhaust plug for a storage battery is formed of a ceramic porous body, and the ceramic porous body is
Fused alumina, silicon carbide, silica.
ムライ等よりなるセラミック多孔体で、ガスを通す多数
の孔の内面をフルオロアルキルシランをコーティング処
理するものである。It is a ceramic porous body made of mulberry or the like, and the inner surfaces of the numerous pores through which gas passes are coated with fluoroalkylsilane.
（作用）
前記技術的手段は次のように作用する。すなわち、セラ
ミック多孔体のガスを通す多数の孔の内面にフルオロア
ルキルシランをコーティング処理することにより撥水性
が著しく良くなり、電解液のもれを防止することができ
る。(Operation) The technical means operates as follows. That is, by coating the inner surfaces of the many gas-permeable pores of the ceramic porous body with fluoroalkylsilane, water repellency is significantly improved and leakage of the electrolyte can be prevented.
（実施例） 以下、実施例に基づいて説明する。(Example) The following will explain based on examples.
添付図面に於いて、Ａはセラミック多孔体で、１はセラ
ミックビーズ、２はガラス質の結合剤。In the attached drawings, A is a ceramic porous body, 1 is a ceramic bead, and 2 is a glassy binder.
３はフルオロアルキルシラン層であり、１と２よりなる
セラミック多孔体に３をコーティングすることにより撥
水性を付与し、それによって電解液のもれを防止するも
のである。3 is a fluoroalkylsilane layer, which imparts water repellency by coating the ceramic porous body consisting of 1 and 2 with 3, thereby preventing electrolyte leakage.
３のフルオロアルキルシランは、一方はＣＦ３基があり
、他方にＳ ｉ （ＯＣＨｓ ）ｓ基或いは５ｉｃ１
．基又はＳｉＣＨｓＣ１ｇ基等がついており、後者は無
機物と結合し、前者は撥水性を発揮するものである。The fluoroalkylsilane of No. 3 has a CF3 group on one side and a Si(OCHs)s group or a 5ic1 group on the other side.
．． group or SiCHsC1g group, etc., the latter binds to inorganic substances, and the former exhibits water repellency.
（実施例）
球状のアルミナ粒子（＃５０）にガラス粉末を１５ｗｔ
％混合し、所定の形状（φ１１．５Ｘｔ４０）に成形後
、空気雰囲気で１４００℃に加熱することにより多孔体
をつくる。該多孔体を第１表に示した東芝シリコーン製
のフルオロアルキルシランの２％（メタノール溶媒）に
浸漬後取り出し２００℃で１時間熱処理した。(Example) 15wt of glass powder was added to spherical alumina particles (#50)
%, molded into a predetermined shape (φ11.5×t40), and heated to 1400° C. in an air atmosphere to form a porous body. The porous body was immersed in 2% fluoroalkylsilane (methanol solvent) manufactured by Toshiba Silicone shown in Table 1, and then taken out and heat treated at 200° C. for 1 hour.
（比較例）
現在市販されているバッテリーより取り出したフィルタ
ーである。同フィルターはムライト粒子から成るセラミ
ック多孔体でシリコーン系の撥水剤であるジメチルポリ
シロキサンで撥水処理したものである。(Comparative example) This is a filter taken from a battery currently on the market. The filter is a ceramic porous body made of mullite particles that has been treated with dimethylpolysiloxane, a silicone-based water repellent, to make it water repellent.
前記各フィルターの耐電解液性を調査するため３７％の
硫酸中に８０度で７２０時間浸けた後、水洗嵌挿後各フ
ィルターをバッテリーに装着し乗′用車に搭載して悪路
テストコースを１時間走行後電解液のもれの調査を行い
、その結果を第１表に示す。In order to investigate the electrolyte resistance of each of the above filters, they were immersed in 37% sulfuric acid at 80 degrees for 720 hours, washed with water, and then inserted into the battery.The filters were attached to the battery and loaded into a passenger car on a rough road test course. After running for 1 hour, leakage of the electrolyte was investigated, and the results are shown in Table 1.
第 １ 表
本実施例の１〜４はいずれの場合でも耐酸試験後も十分
な耐溢液を示しているが、比較例は液もれを生じた。こ
れはコーティングされた層の耐薬品性の差により生じた
ものである。Table 1 Examples 1 to 4 of the present invention all showed sufficient leakage resistance even after the acid resistance test, but the comparative example caused leakage. This is caused by the difference in chemical resistance of the coated layers.
本発明は次の効果を有する。すなわち、耐薬品性に優れ
たフッ素樹脂にて作製した多孔体も考えられる。しかし
このものは多孔度が低（、必要な通気量が確保できない
上、その機械的強度が小さいため実用上ケースに装着で
きない等の問題点があるが、本発明はセラミック多孔体
で強度及び通気量を確保し撥水性はコーテイング膜で確
保するので前記の強度不足及び通気量不足という問題は
生じない。またフッ素樹脂は高価であるが、フルオロア
ルキルシランは比較的安価であり、かつ薄膜コーティン
グなので使用量も少なくないためフッ素樹脂多孔体より
大巾なコストダウンをはかることができる。The present invention has the following effects. That is, a porous body made of a fluororesin having excellent chemical resistance may also be considered. However, this material has problems such as its low porosity (cannot secure the necessary amount of ventilation) and its low mechanical strength, making it practically impossible to attach it to a case. Since the water repellency and water repellency are ensured by the coating film, the above-mentioned problems of insufficient strength and insufficient ventilation do not occur.Furthermore, fluororesin is expensive, but fluoroalkylsilane is relatively inexpensive, and because it is a thin film coating. Since the amount used is not small, the cost can be reduced significantly compared to the porous fluororesin material.
図面は本実施例の部分断面拡大図である。 ■・・・セラミックビーズ、２・・・結合剤。 ３・・・フルオロアルキルシラン層。 ４・・・気孔。 The drawing is an enlarged partial cross-sectional view of this embodiment. ■...Ceramic beads, 2...Binding agent. 3...Fluoroalkylsilane layer. 4...Stomata.
Claims (1)
多孔体で形成し、上記セラミックス多孔体のガスを通す
多数の孔の内面をフルオロアルキルシランで処理した蓄
電池排気栓用フィルター。A filter for a storage battery exhaust plug, which is provided inside the storage battery exhaust plug, is made of a ceramic porous body, and the inner surfaces of the numerous pores through which gas passes through the ceramic porous body are treated with fluoroalkylsilane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076951A JPS63244555A (en) | 1987-03-30 | 1987-03-30 | Filter for storage battery exhaust stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076951A JPS63244555A (en) | 1987-03-30 | 1987-03-30 | Filter for storage battery exhaust stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63244555A true JPS63244555A (en) | 1988-10-12 |
Family
ID=13620079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62076951A Pending JPS63244555A (en) | 1987-03-30 | 1987-03-30 | Filter for storage battery exhaust stopper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63244555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1076050A2 (en) * | 1999-08-10 | 2001-02-14 | Erlus Baustoffwerke Ag | Method for hydrophobing ceramic surfaces |
| JP2016049499A (en) * | 2014-08-31 | 2016-04-11 | 株式会社アクアリンク | Air bubble mixer and air bubble mixed shower apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161656A (en) * | 1985-01-09 | 1986-07-22 | Matsushita Electric Ind Co Ltd | Vent plug for storage battery |
| JPS61161655A (en) * | 1985-01-08 | 1986-07-22 | Matsushita Electric Ind Co Ltd | Vent plug for lead-acid battery |
-
1987
- 1987-03-30 JP JP62076951A patent/JPS63244555A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161655A (en) * | 1985-01-08 | 1986-07-22 | Matsushita Electric Ind Co Ltd | Vent plug for lead-acid battery |
| JPS61161656A (en) * | 1985-01-09 | 1986-07-22 | Matsushita Electric Ind Co Ltd | Vent plug for storage battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1076050A2 (en) * | 1999-08-10 | 2001-02-14 | Erlus Baustoffwerke Ag | Method for hydrophobing ceramic surfaces |
| EP1076050A3 (en) * | 1999-08-10 | 2001-10-31 | Erlus Baustoffwerke Ag | Method for hydrophobing ceramic surfaces |
| JP2016049499A (en) * | 2014-08-31 | 2016-04-11 | 株式会社アクアリンク | Air bubble mixer and air bubble mixed shower apparatus |
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