JPH10189006A - Air cell - Google Patents
Air cellInfo
- Publication number
- JPH10189006A JPH10189006A JP8345337A JP34533796A JPH10189006A JP H10189006 A JPH10189006 A JP H10189006A JP 8345337 A JP8345337 A JP 8345337A JP 34533796 A JP34533796 A JP 34533796A JP H10189006 A JPH10189006 A JP H10189006A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst layer
- positive electrode
- air battery
- negative electrode
- case
- 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
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Inert Electrodes (AREA)
- Hybrid Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気電池に係り、
さらに詳しくは、作動電圧および成形性の低下を招来す
ることなく内部抵抗の低減および放電特性の向上（重負
荷放電）を図った空気電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air battery,
More specifically, the present invention relates to an air battery in which the internal resistance is reduced and the discharge characteristics are improved (heavy load discharge) without lowering the operating voltage and the formability.
【０００２】[0002]
【従来の技術】多孔質の活性炭を含む触媒層を備えた正
極組み立て体（正極）と、亜鉛粉および電解液を含むゲ
ル状の負極活物質層（負極）との間で、空気中の酸素を
使用して電力を得る空気電池が実用に供されている。す
なわち、空気を利用して正極および負極で、次のような
電極反応をそれぞれ行うことによって、１．４Ｖ程度の
起電力を得る空気電池が知られている。2. Description of the Related Art Oxygen in the air is provided between a positive electrode assembly (positive electrode) having a catalyst layer containing porous activated carbon and a gel negative electrode active material layer (negative electrode) containing zinc powder and an electrolyte. An air battery that obtains electric power by using a battery is practically used. That is, there is known an air battery that obtains an electromotive force of about 1.4 V by performing the following electrode reactions at a positive electrode and a negative electrode using air.
【０００３】 負極側：Ｚｎ＋２ＯＨ- →ＺｎＯ＋Ｈ2 Ｏ＋２ｅ- 正極側：1/2 Ｏ2 ＋Ｈ2 Ｏ＋２ｅ- →２ＯＨ- The negative electrode side: Zn + 2OH − → ZnO + H 2 O + 2e − The positive electrode side: 1/2 O 2 + H 2 O + 2e − → 2OH −
【０００４】図１は空気電池の要部の断面図である。図
中、１は底壁面に空気孔２を有する一端が開口型の正極
ケースであり、正極ケース１内には、その内底壁面上に
拡散紙３，撥水膜４，触媒層５およびセパレータ６が順
次積層配置されて正極組み立て体７を成形している。触
媒層５は一般的に、活性炭、マンガン酸化物およびテフ
ロン粉末の混合体で、シート状に成形されている。ま
た、８は正極組み立て体７のセパレータ６上に積層配置
された亜鉛粉および電解液を含有したゲル状の負極活物
質層である。ここで、ゲル状の負極活物質層は、たとえ
ば３０重量％の水酸化カリウム水溶液からなる電解液、
ポリアクリル酸ナトリウム（ゲル化剤）、亜鉛粉末もし
くは亜鉛合金粉末と配合してなる混合体である。FIG. 1 is a sectional view of a main part of an air battery. In the figure, reference numeral 1 denotes a positive electrode case having an air hole 2 on a bottom wall and having an open end, and inside the positive electrode case 1, a diffusion paper 3, a water-repellent film 4, a catalyst layer 5 and a separator are provided on the inner bottom wall. 6 are sequentially stacked to form a positive electrode assembly 7. The catalyst layer 5 is generally formed of a mixture of activated carbon, manganese oxide and Teflon powder, and is formed into a sheet. Reference numeral 8 denotes a gelled negative electrode active material layer containing zinc powder and an electrolytic solution, which is stacked on the separator 6 of the positive electrode assembly 7. Here, the gelled negative electrode active material layer is made of, for example, an electrolytic solution composed of a 30% by weight aqueous solution of potassium hydroxide,
It is a mixture obtained by blending with sodium polyacrylate (gelling agent), zinc powder or zinc alloy powder.
【０００５】さらに、９は前記負極活物質層８に内壁面
部が電気的に接して、前記正極ケースの開口部を封止す
る負極ケース、１０は前記負極ケース９および正極ケー
ス１の被封止部間に介挿配置された絶縁ガスケット、１
１は前記空気孔２を封止するため正極ケース１底面に貼
着されたシールテープである。Further, reference numeral 9 denotes a negative electrode case in which an inner wall portion electrically contacts the negative electrode active material layer 8 to seal an opening of the positive electrode case, and 10 denotes a sealed portion of the negative electrode case 9 and the positive electrode case 1. Insulating gasket interposed between the parts, 1
Reference numeral 1 denotes a seal tape attached to the bottom surface of the positive electrode case 1 to seal the air holes 2.
【０００６】[0006]
【発明が解決しようとする課題】近年、より重負荷で放
電できる電池の需要が高まっており、このような要望に
対応して作動電圧が高く、内部抵抗を低く抑えた空気電
池の開発が進められている。すなわち、空気電池に内蔵
されている触媒層５に、カーボンブラック系（ケッチェ
ンブラックやアセチレンブラック）の導電性材料を添加
含有させ、内部抵抗を低減させる構成が試みられてい
る。In recent years, there has been an increasing demand for batteries that can be discharged with a heavier load. In response to such demands, the development of air batteries having a high operating voltage and a low internal resistance has been promoted. Have been. That is, a configuration in which a carbon black-based (Ketjen black or acetylene black) conductive material is added to the catalyst layer 5 built in the air battery to reduce the internal resistance has been attempted.
【０００７】しかしながら、触媒層にカーボンブラック
系の導電性材料を添加した場合、少量ではほとんど効果
が見られない。また、その量を増加すると、内部抵抗は
低減されるものの作動電圧が低下するという現象や、成
形性が悪くなるという現象が起こる。その原因として
は、導電性材料の添加含有量に相当する触媒量が低減す
ることになり、十分な触媒活性が得られないということ
がある。つまり、導電性材料を多量に添加させると、結
果的にはかえって作動電圧が低下するので、重負荷化が
阻害されることとなる。[0007] However, when a carbon black conductive material is added to the catalyst layer, little effect is seen with a small amount. In addition, when the amount is increased, the phenomenon that the operating voltage is reduced but the formability is deteriorated occurs although the internal resistance is reduced. The reason is that the amount of the catalyst corresponding to the content of the conductive material is reduced, and sufficient catalytic activity cannot be obtained. In other words, when a large amount of the conductive material is added, the operating voltage is rather lowered as a result, so that the heavy load is hindered.
【０００８】また、触媒層５にカーボンブラック系の導
電性材料よりも導電性の高い人造黒鉛を添加する方法も
ある。しかし、添加量が少量の場合には若干の効果はあ
るが、触媒層５の成形性が低下するという問題がある。
また、多量に添加した場合には、触媒層５の製造が困難
となる。There is also a method of adding artificial graphite having higher conductivity than the carbon black conductive material to the catalyst layer 5. However, when the addition amount is small, there is a slight effect, but there is a problem that the formability of the catalyst layer 5 is reduced.
If a large amount is added, the production of the catalyst layer 5 becomes difficult.
【０００９】本発明は、上記問題に対処してなされたも
ので、空気電池において、作動電圧および成形性の低下
を招来することなく、内部抵抗を低減することを目的と
し、その結果、重負荷放電を行うことが可能な空気電池
を提供することを目的とするものである。The present invention has been made in view of the above problems, and has as its object to reduce the internal resistance of an air battery without lowering the operating voltage and formability. It is an object of the present invention to provide an air battery capable of performing discharge.
【００１０】[0010]
【課題を解決するための手段】すなわち本発明は、活性
炭を含む触媒層を備えた正極と、電解液および亜鉛粉を
含むゲル状負極とを有する空気電池において、前記触媒
層に導電性材料として膨張化黒鉛を配合したことを特徴
とするものである。That is, the present invention relates to an air battery having a positive electrode provided with a catalyst layer containing activated carbon and a gelled negative electrode containing an electrolytic solution and zinc powder, wherein the catalyst layer is provided as a conductive material. It is characterized by containing expanded graphite.
【００１１】本発明においては、触媒層に導電性材料と
して膨張化黒鉛を配合したことにより、電池の内部抵抗
の低減化を図りながら所要の作動電圧を保持することが
でき、さらに触媒層の成形性も損なわない。特に膨張化
黒鉛の配合量を重量比で０．５〜１０％とした場合が好
ましい。膨張化黒鉛が成形性を損なわない理由は明らか
でないが、従来の人造黒鉛に比べて膨張化黒鉛のほうが
粒子が柔らかいので、成型する際に潰れやすくなるため
ではないかと考えられる。According to the present invention, the required operating voltage can be maintained while reducing the internal resistance of the battery by blending expanded catalyst as a conductive material in the catalyst layer. Does not spoil the nature. In particular, it is preferable that the compounding amount of the expanded graphite is 0.5 to 10% by weight. Although the reason why the expanded graphite does not impair the formability is not clear, it is considered that the expanded graphite has softer particles than the conventional artificial graphite, and is likely to be crushed during molding.
【００１２】本発明の空気電池はボタン型でも円筒型で
もよい。いずれにおいても、壁面に空気孔を有する一端
が開口型の正極ケースと、前記正極ケースの内壁面上に
順次積層配置された拡散紙、撥水膜、触媒層およびセパ
レータからなる正極組み立て体と、前記正極組み立て体
のセパレータに対接配置された電解液および亜鉛粉を含
有したゲル状の負極活物質層と、前記負極活物質層に電
気的に接触して正極ケースの開口部を封止する負極ケー
スと、前記負極ケースおよび正極ケースの被封止部間に
介挿入された絶縁ガスケットとを有する。The air battery of the present invention may be a button type or a cylindrical type. In any case, one end having an air hole on the wall surface is an open-type positive electrode case, and a positive electrode assembly including a diffusion paper, a water-repellent film, a catalyst layer, and a separator sequentially stacked and arranged on the inner wall surface of the positive electrode case, A gelled negative electrode active material layer containing an electrolytic solution and zinc powder disposed opposite to the separator of the positive electrode assembly, and electrically contacting the negative electrode active material layer to seal the opening of the positive electrode case. It has a negative electrode case, and an insulating gasket inserted between the sealed portions of the negative electrode case and the positive electrode case.
【００１３】活性炭を含む触媒層には上記したように導
電性材料として重量比で０．５〜１０％の膨張化黒鉛
（たとえば日本黒鉛工業（株）製 ＫＥＸ−５，ＣＭＸ
−４０等）が添加されている。As described above, the catalyst layer containing activated carbon has 0.5 to 10% by weight of expanded graphite (for example, KEX-5, CMX manufactured by Nippon Graphite Industry Co., Ltd.) as a conductive material.
-40 etc.).
【００１４】ボタン型の空気電池場合は、負極ケースは
内壁面が負極活物質に接して封止する構造をとり、また
円筒型の場合には、集電体を負極活物質に挿入・接続し
て封止する構造をとる。つまり、この発明における負極
ケースは、通常の封止ケースそのものと、集電体付きの
封止ケースとが含まれる。In the case of a button type air battery, the negative electrode case has a structure in which the inner wall surface is in contact with and sealed to the negative electrode active material. In the case of a cylindrical type, a current collector is inserted and connected to the negative electrode active material. Take a structure to seal. That is, the negative electrode case in the present invention includes a normal sealing case itself and a sealing case with a current collector.
【００１５】[0015]
【発明の実施の形態】ボタン型空気電池、円筒型空気電
池とも基本的な構成は、従来の場合と同様である。この
実施例はボタン型空気電池なので、前記図１を参照して
実施例を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of both a button type air battery and a cylindrical air battery is the same as that of the conventional case. Since this embodiment is a button type air battery, the embodiment will be described with reference to FIG.
【００１６】図１はＪＩＳ規格ＰＲ４４型の空気電池の
要部構成を断面的に示したものである。１は底壁面に空
気孔２を有する一端が開口型の正極ケースである。そし
て、前記正極ケース１内には、その内底壁面上に拡散紙
３，撥水膜４，触媒層５およびセパレータ６が順次積層
配置されて正極組み立て体７を成形している。ここで、
拡散紙３はクラフト紙、撥水膜４はポリテトラフロロエ
チレン（ＰＴＦＥ）フィルムである。触媒層５は、活性
炭に、マンガン酸化物，導電性材料として膨張化黒鉛
（ＣＭＸ−４０），ポリテトラフロロエチレン粉末をそ
れぞれ混合し、シート状に形成したものである。セパレ
ータ６はポリプロピレン微多孔質膜である。FIG. 1 is a cross-sectional view showing a main part of a JIS standard PR44 type air battery. Reference numeral 1 denotes a positive electrode case having an open end at one end having an air hole 2 on a bottom wall surface. In the positive electrode case 1, a diffusion paper 3, a water-repellent film 4, a catalyst layer 5, and a separator 6 are sequentially laminated on the inner bottom wall surface to form a positive electrode assembly 7. here,
The diffusion paper 3 is kraft paper, and the water-repellent film 4 is a polytetrafluoroethylene (PTFE) film. The catalyst layer 5 is formed by mixing manganese oxide, expanded graphite (CMX-40) as an electrically conductive material, and polytetrafluoroethylene powder with activated carbon, and forming the mixture into a sheet. The separator 6 is a microporous polypropylene membrane.
【００１７】また、８は正極組み立て体７のセパレータ
６上に積層配置されたゲル状の負極活物質である。ゲル
状の負極活物質８は、２５〜４２重量％の水酸化カリウ
ム水溶液の電解液に、ポリアクリル酸ナトリウム（ゲル
化剤）、亜鉛粉末もしくは亜鉛合金粉末とを配合して調
製したゲル状の混合体である。Numeral 8 denotes a gelled negative electrode active material laminated on the separator 6 of the positive electrode assembly 7. The gelled negative electrode active material 8 is a gel prepared by mixing sodium polyacrylate (gelling agent), zinc powder or zinc alloy powder with an electrolyte of a 25 to 42% by weight aqueous potassium hydroxide solution. It is a mixture.
【００１８】さらに、９は前記負極活物質層８に内壁面
部が電気的に接する一方、前記正極ケース１の開口部を
封止する負極ケース、１０は前記負極ケース９および正
極ケース１の被封止部間に介挿配置された絶縁ガスケッ
ト、１１は前記空気孔２を封止するため正極ケース１外
装壁面に貼着されたシールテープである。ここで、負極
ケース９は、たとえばニッケル、ステンレス鋼および銅
の三層クラッド製であり、また絶縁ガスケット１０はポ
リアミド樹脂系のものである。Further, reference numeral 9 denotes a negative electrode case in which an inner wall portion electrically contacts the negative electrode active material layer 8 while sealing an opening of the positive electrode case 1, and 10 denotes a case where the negative electrode case 9 and the positive electrode case 1 are sealed. An insulating gasket 11 interposed between the stop portions is a seal tape attached to the outer wall surface of the positive electrode case 1 to seal the air hole 2. Here, the negative electrode case 9 is made of, for example, a three-layer clad of nickel, stainless steel and copper, and the insulating gasket 10 is made of a polyamide resin.
【００１９】上記において、触媒層５の構成を、表１に
示すように膨張化黒鉛の添加量の異なる触媒層として、
５種の空気電池（実施例１〜５）をそれぞれ５０個ずつ
組み立て作成した。In the above, the structure of the catalyst layer 5 is as shown in Table 1 as catalyst layers having different addition amounts of expanded graphite.
Fifty air cells (Examples 1 to 5) were assembled and made into 50 pieces each.
【００２０】また、比較のため、表１に示すように導電
剤としてカーボンブラック系のものおよび人造黒鉛（Ｓ
Ｐ１０）を添加含有させて触媒層５を構成し、それ以外
は実施例と同様にして空気電池（比較例１〜１０）を、
それぞれ５０個ずつ組み立て作成した。For comparison, as shown in Table 1, carbon black type conductive agent and artificial graphite (S
P10) was added to form the catalyst layer 5, and otherwise the air batteries (Comparative Examples 1 to 10) were manufactured in the same manner as in the Examples.
Assembled and made 50 pieces each.
【００２１】上記構成の空気電池について、温度２０℃
における電池の内部抵抗の測定結果（１０個の平均
値）、定抵抗（負荷）２５０Ωでの作動電圧の測定結果
（１０個の平均値）、および触媒層の成形性を、前記触
媒層の構成（組成・素材）とともに、表１および図２に
比較表示した。With respect to the air battery having the above structure, the temperature is 20 ° C.
The measurement results of the internal resistance of the battery (average value of 10 pieces), the measurement results of the operating voltage at a constant resistance (load) of 250Ω (average value of 10 pieces), and the moldability of the catalyst layer were determined by the composition of the catalyst layer The results are shown in Table 1 and FIG.
【００２２】[0022]
【表１】 [Table 1]
【００２３】表１および図２から明らかなように、膨張
化黒鉛を１０重量％以下（実施例１〜４）添加した場
合、改善前（比較例１）と比較すると、いずれも内部抵
抗が低く、安定した作動電圧が得られ、成形性も良好で
あった。As is clear from Table 1 and FIG. 2, when 10% by weight or less of expanded graphite (Examples 1 to 4) was added, the internal resistance was lower than that before improvement (Comparative Example 1). A stable operating voltage was obtained, and the moldability was also good.
【００２４】しかし、膨張化黒鉛を１５重量％（実施例
５）添加した場合、内部抵抗、成形性に関しては良好で
あるが、作動電圧が低下してしまった。原因としては、
触媒量が低減し、十分な触媒活性が得られなかったため
である。このことからも、膨張化黒鉛の添加量は０．５
〜１０重量％程度が望ましい。However, when 15% by weight of the expanded graphite (Example 5) was added, the internal resistance and the moldability were good, but the operating voltage was lowered. The cause is
This is because the amount of the catalyst was reduced and sufficient catalytic activity was not obtained. From this, the addition amount of the expanded graphite is 0.5%.
About 10 to about 10% by weight is desirable.
【００２５】これに対してカーボンブラック系の導電性
材料を添加した場合（比較例２〜６）は、少量では内部
抵抗が低下せず、多量に添加した場合は内部抵抗が低下
するものの作動電圧が低下した。また成形性も低下し
た。したがって重負荷放電に十分耐えられない。On the other hand, when a carbon black-based conductive material was added (Comparative Examples 2 to 6), the internal resistance did not decrease with a small amount, and the internal resistance decreased with a large amount. Decreased. In addition, the moldability also decreased. Therefore, it cannot withstand heavy load discharge sufficiently.
【００２６】さらに、人造黒鉛を導電性材料として３重
量％以下添加した場合（比較例７，８）、若干の効果は
あるものの、触媒層５の成形性が低下してしまう。５〜
１０重量％添加した場合は（比較例９，１０）、触媒層
の成形が全くできなかった。Further, when artificial graphite is added in an amount of 3% by weight or less as a conductive material (Comparative Examples 7 and 8), the moldability of the catalyst layer 5 is reduced, although there is some effect. 5-
When 10% by weight was added (Comparative Examples 9 and 10), the catalyst layer could not be formed at all.
【００２７】なお、本発明は上記実施例に限定されるも
のでなく、発明の趣旨を逸脱しない範囲でいろいろな変
形をとることができる。たとえば、空気電池の形式はＪ
ＩＳ規格ＰＲ４４以外であってもよい。また、ボタン型
空気電池以外の円筒型空気電池であってもよい。すなわ
ち正極ケースとして側壁に空気孔を有する円筒型を用
い、同じく円筒状に成形した正極組み立て体を、正極ケ
ース内に挿入装着し、円筒状の正極組み立て体内に負極
活物質層を充填装着した構成の場合にも適用できる。It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. For example, the type of air battery is J
It may be other than the IS standard PR44. Further, a cylindrical air battery other than the button air battery may be used. That is, using a cylindrical type having an air hole on a side wall as a positive electrode case, a positive electrode assembly similarly molded into a cylindrical shape is inserted and mounted in the positive electrode case, and a negative electrode active material layer is filled and mounted in the cylindrical positive electrode assembly. It can be applied to the case.
【００２８】[0028]
【発明の効果】以上説明したように、本発明によれば、
空気電池において、作動電圧を低下させることなく、ま
た触媒層の成形性を低下させることなく、内部抵抗を容
易に下げることができる。したがって本発明によれば、
重負荷放電に対応可能な空気電池を提供することができ
る。As described above, according to the present invention,
In an air battery, the internal resistance can be easily reduced without lowering the operating voltage and without lowering the formability of the catalyst layer. Therefore, according to the present invention,
An air battery capable of coping with heavy load discharge can be provided.
【図１】ボタン型空気電池の断面図。FIG. 1 is a cross-sectional view of a button-type air battery.
【図２】本発明の実施例および比較例の空気電池におけ
る導電剤添加率と内部抵抗および作動電圧の関係を示す
図。FIG. 2 is a diagram showing a relationship between a conductive agent addition rate, an internal resistance, and an operating voltage in air cells of Examples and Comparative Examples of the present invention.
１…正極ケース、２…空気孔、３…拡散紙、４…撥水
膜、５…触媒層、６…セパレータ、７…正極組み立て
体、８…負極活物質、９…負極ケース、１０…絶縁性ガ
スケット、１１…シールテープ。DESCRIPTION OF SYMBOLS 1 ... Positive electrode case, 2 ... Air hole, 3 ... Diffusion paper, 4 ... Water repellent film, 5 ... Catalyst layer, 6 ... Separator, 7 ... Positive electrode assembly, 8 ... Negative electrode active material, 9 ... Negative electrode case, 10 ... Insulation Gasket, 11 ... seal tape.
Claims (2)
解液および亜鉛粉を含むゲル状負極とを有する空気電池
において、前記触媒層に導電性材料として膨張化黒鉛を
配合したことを特徴とする空気電池。1. An air battery having a positive electrode provided with a catalyst layer containing activated carbon and a gelled negative electrode containing an electrolytic solution and zinc powder, characterized in that the catalyst layer contains expanded graphite as a conductive material. And air battery.
１０％である請求項１記載の空気電池。2. The compounding amount of expanded graphite is 0.5 to 0.5% by weight.
The air battery according to claim 1, which is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8345337A JPH10189006A (en) | 1996-12-25 | 1996-12-25 | Air cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8345337A JPH10189006A (en) | 1996-12-25 | 1996-12-25 | Air cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10189006A true JPH10189006A (en) | 1998-07-21 |
Family
ID=18375911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8345337A Pending JPH10189006A (en) | 1996-12-25 | 1996-12-25 | Air cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10189006A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000195568A (en) * | 1998-12-25 | 2000-07-14 | Toshiba Battery Co Ltd | Air battery |
| WO2015076402A1 (en) | 2013-11-25 | 2015-05-28 | 独立行政法人国立高等専門学校機構 | Positive electrode for air cells and air cell using this positive electrode |
| US10056623B2 (en) | 2014-11-25 | 2018-08-21 | Toyo Tanso Co., Ltd. | Expanded graphite sheet and battery using the expanded graphite sheet |
| US10396347B2 (en) | 2014-12-04 | 2019-08-27 | National Institute of Technology | Positive electrode for air battery, air battery using the positive electrode, and method of manufacturing the positive electrode |
| JP2019155349A (en) * | 2018-03-12 | 2019-09-19 | 国立大学法人群馬大学 | Carbon-based composite for oxygen reduction catalyst, and manufacturing and application thereof |
| WO2019176511A1 (en) * | 2018-03-12 | 2019-09-19 | 国立大学法人群馬大学 | Carbon-based composite for oxygen reduction catalyst, method for producing carbon-based composite for oxygen reduction catalyst, and use of carbon-based composite for oxygen reduction catalyst |
-
1996
- 1996-12-25 JP JP8345337A patent/JPH10189006A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000195568A (en) * | 1998-12-25 | 2000-07-14 | Toshiba Battery Co Ltd | Air battery |
| WO2015076402A1 (en) | 2013-11-25 | 2015-05-28 | 独立行政法人国立高等専門学校機構 | Positive electrode for air cells and air cell using this positive electrode |
| KR20160089400A (en) | 2013-11-25 | 2016-07-27 | 도쿠리츠교세이호징 고쿠리츠코토센몬갓코키코 | Positive electrode for air cells and air cell using this positive electrode |
| US10276877B2 (en) | 2013-11-25 | 2019-04-30 | National Institute of Technology | Positive electrode for air battery, and air battery using the positive electrode |
| US10056623B2 (en) | 2014-11-25 | 2018-08-21 | Toyo Tanso Co., Ltd. | Expanded graphite sheet and battery using the expanded graphite sheet |
| US10396347B2 (en) | 2014-12-04 | 2019-08-27 | National Institute of Technology | Positive electrode for air battery, air battery using the positive electrode, and method of manufacturing the positive electrode |
| JP2019155349A (en) * | 2018-03-12 | 2019-09-19 | 国立大学法人群馬大学 | Carbon-based composite for oxygen reduction catalyst, and manufacturing and application thereof |
| WO2019176511A1 (en) * | 2018-03-12 | 2019-09-19 | 国立大学法人群馬大学 | Carbon-based composite for oxygen reduction catalyst, method for producing carbon-based composite for oxygen reduction catalyst, and use of carbon-based composite for oxygen reduction catalyst |
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