JPS59117067A - Production method of air pole - Google Patents

Production method of air pole

Info

Publication number
JPS59117067A
JPS59117067A JP57233356A JP23335682A JPS59117067A JP S59117067 A JPS59117067 A JP S59117067A JP 57233356 A JP57233356 A JP 57233356A JP 23335682 A JP23335682 A JP 23335682A JP S59117067 A JPS59117067 A JP S59117067A
Authority
JP
Japan
Prior art keywords
activated carbon
lead
sintered
air pole
carbon
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
Application number
JP57233356A
Other languages
Japanese (ja)
Inventor
Katsuo Deguchi
勝男 出口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentel Co Ltd
Original Assignee
Pentel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP57233356A priority Critical patent/JPS59117067A/en
Publication of JPS59117067A publication Critical patent/JPS59117067A/en
Pending legal-status Critical Current

Links

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
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/76—Containers for holding the active material, e.g. tubes, capsules
    • 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)
  • Inert Electrodes (AREA)

Abstract

PURPOSE:To improve the performance as an air pole by molding activated carbon sintered in the inactive atmosphere after sticking lead salt of organic acid together with a carbon material and a binding agent. CONSTITUTION:Activated carbon sintered in the inactive atmosphere after sticking lead salt of organic acid is molded together with a carbon material and a binding agent. For example, activated carbon is immersed in a 2-3wt% solution of organic acid lead salt, and after absorption and drying, it is sintered for one hour at 400-500 deg.C in the inactive atmosphere to obtain activated carbon stuck with lead oxide. Then, the activated carbon stuck with lead oxide is molded together with carbon black and a binding agent and is sintered to obtain an air pole. Accordingly, amorphous lead is deposited on the activated carbon surface, next it is changed to amorphous and extremely fine lead oxide, thereby the decomposition performance of hydrogen peroxide is made 10-30 times as large as that of activated carbon. Accordingly, excellent polarization characteristics can be available and an excellent air pole for an air cell and a fuel cell can be obtained.

Description

【発明の詳細な説明】 本発明は、空気電池ヤ燃料電池などに使用する空気極の
製造方法に関し、更に詳しくは改良された活性炭を使用
した空気極の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an air electrode for use in air cells, fuel cells, etc., and more particularly to a method of manufacturing an air electrode using improved activated carbon.

従来、空気電池や燃料電池などに使用する空気極は、フ
ァーネスブラック、チャンネルブラック、サーマルブラ
ックなどのカーボンブラソによシその性能が左右される
が、特に炭素材料の活性炭の性能が電池としての性能に
影響してく　る。Conventionally, the performance of air electrodes used in air batteries, fuel cells, etc. is influenced by carbon brushes such as furnace black, channel black, and thermal black, but the performance of activated carbon, a carbon material, is particularly important for battery performance. It will affect you.

従って、水蒸気や塩化亜鉛などで賦活した活性炭に更に
酸素触媒能（過酸化水素分解能）を高めるだめに貴金属
などの触媒を付着させていた。Therefore, in order to further increase the oxygen catalytic ability (hydrogen peroxide decomposition ability), a catalyst such as a noble metal has been attached to activated carbon activated with water vapor or zinc chloride.

本発明では、活性炭に直接酸化鉛を付着せし以下、本発
明の詳細な説明する。In the present invention, lead oxide is directly attached to activated carbon.The present invention will be described in detail below.

彎キ゛、有機酸鉛塩の２〜３重量係溶液に活性炭を浸稽
し、吸着、乾燥させて後、不活性雰囲気中４００〜５０
０℃１時間焼成することにより、酸化鉛が付着した活性
炭を得る。Activated carbon is immersed in a 2-3 weight solution of organic acid lead salt, adsorbed and dried, and then heated to 400-500 g in an inert atmosphere.
By firing at 0° C. for 1 hour, activated carbon to which lead oxide is attached is obtained.

一般に鉛およびその酸化物は、活性炭の賦活剤や触媒に
使用されないが、本発明では、不活性雰囲気中、有機酸
の鉛塩が活性炭表面にアモルファスの鉛として析出し、
次いで無定形かつ微微粒の酸化鉛に変化するため、過酸
化水素の分解性能は、もとの活性炭の１０〜３０倍とな
る。Generally, lead and its oxides are not used as activators or catalysts for activated carbon, but in the present invention, lead salts of organic acids are precipitated as amorphous lead on the surface of activated carbon in an inert atmosphere.
Since it then changes into amorphous and finely divided lead oxide, its hydrogen peroxide decomposition performance is 10 to 30 times that of the original activated carbon.

上述の有機酸の鉛塩は、ギ酸鉛、酢酢鉛、プロピオ／酸
鉛、吉草酸鉛、カプロン酸鉛、カプリル酸鉛、カプリン
酸鉛、ラウリン酸鉛、ミリスチン酸鉛、バルミチン酸鉛
、ステアリン酸鉛、マロン酸鉛、コハク酸鉛、ゲルター
ル酸鉛、アクリル酸鉛、オレイン酸鉛などの有機カルボ
ン酸の鉛塩が有効である。The above-mentioned lead salts of organic acids include lead formate, lead acetate, lead propio/acid, lead valerate, lead caproate, lead caprylate, lead caprate, lead laurate, lead myristate, lead valmitate, and stearin. Lead salts of organic carboxylic acids such as lead acid, lead malonate, lead succinate, lead geltalate, lead acrylate, and lead oleate are effective.

活性炭への有機酸の鉛塩の付着は、有機酸の鉛塩が水溶
性の場合は水溶液中で、油溶性の場合は油性溶液中で、
活性炭を含浸させ、常温で幹燥させることにより得られ
る。Adhesion of lead salts of organic acids to activated carbon is carried out in an aqueous solution if the lead salt of an organic acid is water-soluble, or in an oil-based solution if it is oil-soluble.
Obtained by impregnating the stem with activated carbon and drying it at room temperature.

上述の方法によシ得られた触媒能力を有する酸化鉛が付
着した活性炭と、カーボンブラック、結合剤などととも
に成型し、焼成することにより目的の空気極を得る。The desired air electrode is obtained by molding the activated carbon to which lead oxide having catalytic ability, obtained by the above-described method, is attached, together with carbon black, a binder, etc., and firing.

以下、本発明を実施例に基づき更に詳細に説明するが１
．実施例中「部」とあるのは「重量音叩を示す。Hereinafter, the present invention will be explained in more detail based on examples.
．． In the examples, "part" indicates "heavy sound."

実施例 ■　活性炭の賦活 日立炭素■製のニノタｙＭＢ１ｏｏ部を５重量係酢酸鉛
水溶ｅ、１ｋに加え、常温で２４時間放置後、濾過し、
５０℃、２４時間乾燥させる。次に電気炉中４０１）−
５００℃１時間焼成して、本発明の活性炭を得だＯ ニソタンＭＢと本発明の活性炭の過酸化水素の分解性能
は表−１の通りであった。Example ■ Activation of activated carbon 100 parts of Ninota YMB manufactured by Hitachi Carbon ■ was added to 5 weight lead acetate aqueous solution e, 1k, left at room temperature for 24 hours, and then filtered.
Dry at 50°C for 24 hours. Next, in the electric furnace 401)-
The activated carbon of the present invention was obtained by firing at 500° C. for 1 hour. The hydrogen peroxide decomposition performance of Nisothane MB and the activated carbon of the present invention is shown in Table 1.

表−１ ■　空気極製造 本発明の活性炭１０Ｐチヤンネルブラツ℃で焼成するこ
とにより空気極を得た。Table 1 ■ Manufacture of air electrode An air electrode was obtained by firing the activated carbon 10P channel braz of the present invention at °C.

比較例 実施例の空気極の製造に準じ、本発明の活性炭の代りに
ニノタンＭＢを使用して空気極を得た。Comparative Example An air electrode was obtained in the same manner as in the production of the air electrode in Example, using Ninotan MB instead of the activated carbon of the present invention.

実施例および比較例の空気極の分極曲線を第１図に示す
。FIG. 1 shows the polarization curves of the air electrodes of Examples and Comparative Examples.

以上のように本発明の製造方法によ）得られた空気極は
、優れた分極特性を示し、空気電池、燃料電池の空気極
として優れたものである。As described above, the air electrode obtained by the manufacturing method of the present invention exhibits excellent polarization characteristics and is excellent as an air electrode for air cells and fuel cells.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、実施例、比較例で得られた空気極の分極曲線
を示し、■は実施例の空気極、の分極曲線を■は比較例
の空気極の分極曲線を示し、縦軸は電流密度（ｍＡ／ｃ
、ｐ）ｂ横軸は電位（Ｖ／Ｓ　ＣＥ）を示す。 ３１Figure 1 shows the polarization curves of the air electrodes obtained in Examples and Comparative Examples, where ■ indicates the polarization curve of the air electrodes of Examples, ■ indicates the polarization curve of air electrodes of Comparative Examples, and the vertical axis is Current density (mA/c
, p)b The horizontal axis indicates the potential (V/S CE). 31

Claims (1)

【特許請求の範囲】[Claims] 活性炭に有機酸の鉛塩を付着せしめて後、不活性雰囲気
中で焼成した活性炭を、炭素材料、結合剤とともに成形
することを特徴とする空気極の製造方法。A method for producing an air electrode, which comprises attaching a lead salt of an organic acid to activated carbon and then firing the activated carbon in an inert atmosphere and molding the activated carbon together with a carbon material and a binder.
JP57233356A 1982-12-22 1982-12-22 Production method of air pole Pending JPS59117067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57233356A JPS59117067A (en) 1982-12-22 1982-12-22 Production method of air pole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57233356A JPS59117067A (en) 1982-12-22 1982-12-22 Production method of air pole

Publications (1)

Publication Number Publication Date
JPS59117067A true JPS59117067A (en) 1984-07-06

Family

ID=16953862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57233356A Pending JPS59117067A (en) 1982-12-22 1982-12-22 Production method of air pole

Country Status (1)

Country Link
JP (1) JPS59117067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000079623A1 (en) * 1999-06-21 2000-12-28 Procyon Power Systems, Inc. Peak power fuel cell
CN105322194A (en) * 2014-07-30 2016-02-10 中国科学院大连化学物理研究所 Multifunctional negative material and application thereof in all-vanadium redox flow battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000079623A1 (en) * 1999-06-21 2000-12-28 Procyon Power Systems, Inc. Peak power fuel cell
CN105322194A (en) * 2014-07-30 2016-02-10 中国科学院大连化学物理研究所 Multifunctional negative material and application thereof in all-vanadium redox flow battery

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