JP3025647U - New nickel-hydrogen battery - Google Patents
New nickel-hydrogen batteryInfo
- Publication number
- JP3025647U JP3025647U JP1995012985U JP1298595U JP3025647U JP 3025647 U JP3025647 U JP 3025647U JP 1995012985 U JP1995012985 U JP 1995012985U JP 1298595 U JP1298595 U JP 1298595U JP 3025647 U JP3025647 U JP 3025647U
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- hydrogen
- battery
- storage alloy
- cathode piece
- 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 - Lifetime
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-
- Y02E60/124—
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
(57)【要約】
【課題】 製造コースが比較的に制御しやすい並びに、
全面的に触媒作用を提供し、ニッケル・水素電池の充電
過程における水素と酸素との再結合能力が大いに改善さ
れ、電池の「内圧」の問題が減少されるニッケル・水素
電池を提供する。
【解決手段】 電池の陰極ピースが水素貯蔵合金材料と
多孔性導電基材からなり、当該多孔性導電基材の一つの
面が一層の当該水素貯蔵合金材料で被覆された後に適当
にロール・プレス成形され、さらにその後焼結または硬
化されて一体化された陰極ピースであって、当該陰極ピ
ースの一つの面が水素貯蔵合金材料で被覆され、当該陰
極ピースの別の一面が多孔性導電基材であるように形成
されてなることを特徴とする新型ニッケル・水素電池に
よる。
(57) [Abstract] [Problem] The manufacturing course is relatively easy to control, and
Provided is a nickel-hydrogen battery which provides a catalytic effect on the whole surface, greatly improves the recombination ability of hydrogen and oxygen in the charging process of the nickel-hydrogen battery, and reduces the problem of "internal pressure" of the battery. A cathode piece of a battery comprises a hydrogen storage alloy material and a porous conductive base material, and one surface of the porous conductive base material is coated with a layer of the hydrogen storage alloy material and then appropriately roll pressed. A cathode piece which is molded and then sintered or cured to be integrated, wherein one surface of the cathode piece is covered with a hydrogen storage alloy material, and the other surface of the cathode piece is a porous conductive substrate. According to the new nickel-metal hydride battery, which is characterized by being formed as follows.
Description
【０００１】[0001]
本考案は、新型のニッケル・水素電池に関するものである。特に、本考案は、 特殊な陰極ピースを有し全面的に触媒作用を提供し、大いにニッケル・水素電池 の充電過程における水素と酸素との再結合能力を改善でき、そして「内圧」の問 題を解決することができるニッケル・水素電池に関するものである。 The present invention relates to a new type nickel-hydrogen battery. In particular, the present invention has a special cathode piece and provides a catalytic effect over the whole area, which can greatly improve the recombination ability of hydrogen and oxygen in the charging process of nickel-hydrogen battery, and the problem of "internal pressure". The present invention relates to a nickel-hydrogen battery that can solve the above problems.
【０００２】[0002]
一般のニッケル・水素電池は、図１Ａおよび図１Ｂに示されるように、電池の 内部に陽極ピース１００と陰極ピース２００とを有し、この二つの異なる電極ピ ースは互いに包み被す状態をなし、そして陰極ピース２００の構造は、図２Ａに 示されるように、導電極性基材２０１と水素貯蔵合金材料２０２，２０３からな り、導電極性基材２０１はできれば穿孔式ニッケル網（メッシュ）、ニッケル・ スポンジ、ニッケル・ファイバー等であり、水素貯蔵合金材料２０２，２０３は 、導電極性基材２０１の両面に被覆され、場合によっては、導電極性基材の中に 形成された隙間に充填されてしまう。 As shown in FIGS. 1A and 1B, a general nickel-hydrogen battery has an anode piece 100 and a cathode piece 200 inside the cell, and these two different electrode pieces are covered with each other. None, and as shown in FIG. 2A, the structure of the cathode piece 200 is composed of a conductive polar base material 201 and hydrogen storage alloy materials 202 and 203. The conductive polar base material 201 is preferably a perforated nickel mesh (mesh), The hydrogen storage alloy material 202, 203 such as nickel sponge or nickel fiber is coated on both surfaces of the conductive polar base material 201, and in some cases, filled in the gap formed in the conductive polar base material. I will end up.
【０００３】 上記一般的なニッケル・水素電池は、若し触媒作用（即ち、充電過程における 水素と酸素との再結合能力）を高めようとすれば、一般的には水素貯蔵合金材料 の全成分を改善すべきだが、これは材料科学の範囲に属し、それに係わる技術的 な問題は通常の知識（ないし一般の技芸）を有する者では解決できない。In the above general nickel-hydrogen battery, if the catalytic action (that is, the recombination ability of hydrogen and oxygen in the charging process) is to be enhanced, generally all the components of the hydrogen storage alloy material are included. However, this belongs to the scope of materials science, and the technical problems related to it cannot be solved by those who have ordinary knowledge (or general skill).
【０００４】 また、図２Ｂに示されるように、基材２０１の上に水素貯蔵合金材料を被覆し ていない数多くの区域を形成し補助電極２０４にしているのもあるが、これでは 水素貯蔵合金材料の面積が犠牲にされ、ニッケル・水素電池陰極の容量が減少す るといった欠点があった。Further, as shown in FIG. 2B, a number of areas not covered with the hydrogen storage alloy material may be formed on the base material 201 to form the auxiliary electrode 204. There is a drawback that the material area is sacrificed and the capacity of the nickel-hydrogen battery cathode is reduced.
【０００５】[0005]
【考案が解決しようとする課題】 そこで、本考案は、従来のニッケル・水素電池が上記の欠点を有するのに鑑み てなされたものである。Therefore, the present invention has been made in view of the conventional nickel-hydrogen battery having the above-mentioned drawbacks.
【０００６】 したがって、本考案は、新型のニッケル・水素電池を提供することを目的とす るものである。Therefore, the present invention aims to provide a new type nickel-hydrogen battery.
【０００７】 本考案の他の目的は、陰極ピースの一面に補助電極を有し、そして基材自体も 補助電極であり、これは触媒にすることができる多孔性導電材料で作られ、電極 を補助する効能が大いに増加され、電池充電の過程における水素と酸素との再結 合能力が改善され、これにより電池内圧の問題が減少できるニッケル・水素電池 を提供することである。Another object of the present invention is to have an auxiliary electrode on one side of the cathode piece, and the substrate itself is also an auxiliary electrode, which is made of a porous conductive material that can be catalyzed. The purpose of the present invention is to provide a nickel-hydrogen battery in which the assisting effect is greatly increased and the recombining ability of hydrogen and oxygen in the process of battery charging is improved, thereby reducing the problem of internal battery pressure.
【０００８】 本考案のさらなる他の目的は、従来のニッケル・水素電池のようにその陰極ピ ースの基材の上に水素貯蔵合金材料を被覆していない数多くの区域を形成し補助 電極としない、その製造の過程が比較的容易に制御でき、品質を維持できるニッ ケル・水素電池を提供することである。Still another object of the present invention is to form a large number of areas, which are not covered with a hydrogen storage alloy material, on the base material of the cathode piece as in the conventional nickel-hydrogen battery and to form the auxiliary electrodes. No, it is to provide a nickel-hydrogen battery whose manufacturing process can be controlled relatively easily and whose quality can be maintained.
【０００９】[0009]
上記諸目的は、電池の陰極ピースが水素貯蔵合金材料と多孔性導電基材からな り、 当該多孔性導電基材の一つの面が一層の当該水素貯蔵合金材料で被覆された後 に適当にロール・プレス成形され、さらにその後焼結または硬化されて一体化さ れた陰極ピースであって、 当該陰極ピースの一つの面が水素貯蔵合金材料で被覆され、当該陰極ピースの 別の一面が多孔性導電基材であるように形成されてなることを特徴とする新型ニ ッケル・水素電池によって達成される。 The above-mentioned objects are appropriately applied after the cathode piece of the battery comprises the hydrogen storage alloy material and the porous conductive substrate, and one surface of the porous conductive substrate is coated with one layer of the hydrogen storage alloy material. A cathode piece that is roll-pressed and then sintered or hardened to form an integrated body, wherein one surface of the cathode piece is coated with a hydrogen storage alloy material and the other surface of the cathode piece is porous. The new nickel-hydrogen battery is characterized in that it is formed as a conductive conductive base material.
【００１０】[0010]
以下、添付した図面を参照し、具体的な実施例により、本考案の新型ニッケル ・水素電池の構造、作用および効能を詳細に説明する。 Hereinafter, the structure, function and effect of the novel nickel-hydrogen battery of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
【００１１】 図１Ａおよび図１Ｂに示されるニッケル・水素電池、並びに図２Ａおよび図２ Ｂに示される従来のニッケル・水素電池の陰極ピースは、その詳細な構造につい ては上記の通りであり、ここでは重複して述べない。The nickel-hydrogen battery shown in FIGS. 1A and 1B, and the cathode piece of the conventional nickel-hydrogen battery shown in FIGS. 2A and 2B are as described above in terms of their detailed structures. It will not be repeated here.
【００１２】 図３に示されるように、本考案の新型ニッケル・水素電池の陰極ピースは、多 孔性導電基材１および補助電極２を含み、基材１および補助電極２は触媒にする ことのできる多孔性導電材料で一体的に構成され、かくの如く構成された陰極ピ ースは、その一面が多孔性導電基材１、すなわち補助電極２であり、別の一面お よび多孔性導電基材１の隙間内のみが水素貯蔵合金材料３である。かくして、補 助電極２は、多孔性導電基材１の上に被覆された形に等しく、かつ多孔性導電基 材１の隙間に水素貯蔵合金材料３を充填してあり、したがって、陰極ピースの一 面全体に補助電極２と多孔性導電基材１の二重の効能を持たせ、ニッケル・水素 電池充電の過程における水素と酸素との再結合の能力が改善され、電池の「内圧 」の問題が減少される。As shown in FIG. 3, the cathode piece of the novel nickel-hydrogen battery of the present invention includes a multi-porous conductive substrate 1 and an auxiliary electrode 2, and the substrate 1 and the auxiliary electrode 2 are catalysts. The cathode pierce which is integrally formed of a porous conductive material that can be formed as described above has one side thereof as the porous conductive base material 1, that is, the auxiliary electrode 2, and another side and the porous conductive material. The hydrogen storage alloy material 3 is present only in the gap of the base material 1. Thus, the auxiliary electrode 2 has the same shape as that coated on the porous conductive base material 1 and the gaps of the porous conductive base material 1 are filled with the hydrogen storage alloy material 3. By giving the dual effect of the auxiliary electrode 2 and the porous conductive substrate 1 to the entire surface, the ability of recombining hydrogen and oxygen in the process of charging nickel-hydrogen battery is improved, and the "internal pressure" of the battery is improved. The problems are reduced.
【００１３】 本考案のニッケル・水素電池の陰極ピースの製造は、図４および図５に示され るように、ウェット式とドライ式の２種類の製造方法（コース）がある。As shown in FIGS. 4 and 5, the cathode piece of the nickel-hydrogen battery of the present invention can be manufactured by two types of manufacturing methods (course), a wet type and a dry type.
【００１４】 これらのうち、ウェット式製造方法は、ニッケル・水素電池の陰極ピースの材 料のうち水素貯蔵合金材料を、まず真空状態下で高温で溶煉（合金材料を加熱し て溶かし精練することないし練り鍛えること）した後微粉化する。該微粉化の処 理は、例えば、水素脆化、ボールミルと粒篩の過程（ステップ）を利用したり、 水素脆化、搗き砕き、ボールミルと粒篩の過程（ステップ）により完成される。 次に、微粉化した水素貯蔵合金粉末と膠体（ないし接着剤）とを撹拌し、適当な 粘性のあるペースト状に調合する。続いて、調合されたペーストを多孔性導電基 材の一面に塗り被し、別の一面には該ペーストを塗り被せず、しかる後、乾燥成 形する。次いで、ロール・プレス成形により適当な厚さに整形した後、８００〜 ９５０℃の温度で１〜３時間焼結し、あるいは３００〜４００℃の温度で１〜３ 時間硬化(curing)して、その構造を強化し、最後に必要なサイズに切断する（な いし截ち切る）ことによって、本考案のニッケル・水素電池の陰極ピースが得ら れる。Among them, in the wet manufacturing method, the hydrogen storage alloy material of the material of the cathode piece of the nickel-hydrogen battery is first melted at a high temperature under vacuum (melting by heating the alloy material for refining). After that, it becomes fine powder. The pulverization treatment is completed, for example, by utilizing the process (step) of hydrogen embrittlement, ball mill and granule sieving, or the process of hydrogen embrittlement, crushing and ball mill and granule sieving. Next, the pulverized hydrogen storage alloy powder and the glue (or adhesive) are stirred to prepare a paste having an appropriate viscosity. Then, the prepared paste is coated on one surface of the porous conductive substrate, and the paste is not coated on the other surface of the porous conductive substrate, followed by dry molding. Then, after shaping into an appropriate thickness by roll press molding, it is sintered at a temperature of 800 to 950 ° C for 1 to 3 hours, or cured at a temperature of 300 to 400 ° C for 1 to 3 hours, The cathode piece of the nickel-hydrogen battery of the present invention is obtained by strengthening the structure and finally cutting (cutting) into the required size.
【００１５】 また、図５に示すドライ式の構造方法では、上記ウェット式製造方法に比して 、ペーストの調合と該ペーストの塗り被し・乾燥のステップがなく、水素貯蔵合 金材料を微粉化した後に、ただちに該水素貯蔵合金粉末と多孔性導電基材と（さ らに必要に応じて、上記膠体（ないし接着剤）等の添加物と）を５〜１０トン／ ｃｍ2 の圧力でロール・プレス成形し、しかる後、焼結あるいは硬化(curing)し てその構造を強化し、最後に適当なサイズに切断する（ないし截ち切る）ことに よって、本考案のニッケル・水素電池の陰極ピースが得られる。Further, in the dry structure method shown in FIG. 5, compared with the wet manufacturing method, there is no step of preparing a paste and coating / drying the paste, and the hydrogen storage alloy material is finely powdered. Immediately after the conversion, the hydrogen storage alloy powder, the porous conductive base material (and, if necessary, the additives such as the above-mentioned glue (or adhesive)) are added at a pressure of 5 to 10 ton / cm 2 . By roll-press molding, and then sintering or curing to strengthen the structure, and finally cutting (or cutting) into an appropriate size, the nickel-hydrogen battery of the present invention can be manufactured. A cathode piece is obtained.
【００１６】[0016]
基材の両面がすべて水素貯蔵合金材料で被覆され、中間が該基材である従来の 陰極ピースのニッケル・水素電池の電池充電容量が１１００ｍＡ・ｈの場合、２ 時間充電した結果、電池の内圧は２０〜３０ｋｇ／ｃｍ2 であった。他方、上記 の多孔性導電基材と水素貯蔵合金材料で一体的に成形した陰極ピースを有する本 考案のニッケル・水素電池で充電すると、その結果電池の内圧は３〜１０ｋｇ／ ｃｍ2 であった。When both sides of the base material are covered with a hydrogen storage alloy material and the middle part is the base material, and the battery charge capacity of the nickel-hydrogen battery of the conventional cathode piece is 1100 mA · h, the internal pressure of the battery is charged for 2 hours. Was 20 to 30 kg / cm 2 . On the other hand, when the nickel-hydrogen battery of the present invention having the above-mentioned porous conductive base material and the cathode piece integrally molded with the hydrogen storage alloy material was charged, the internal pressure of the battery was 3 to 10 kg / cm 2 . .
【００１７】[0017]
以上述べたように、本考案のニッケル・水素電池は、確かに従来のニッケル・ 水素電池の充電の際の「内圧」の問題を解決でき、実用性および産業上の価値を 有する考案であり、かつ未だに同じ考案が公開的に使用されていないので、実用 新案登録請求の要件に符号する。 As described above, the nickel-hydrogen battery of the present invention is a device that can solve the problem of "internal pressure" when charging conventional nickel-hydrogen batteries and has practicality and industrial value. And since the same device has not been publicly used yet, the requirement for utility model registration request is coded.
【００１８】 ここで特に声明する点は、以上述べたのは考案の比較的理想な具体的実施例の 描写に属し、もし本考案の構想を一部分修飾あるいは変更した後生じる効能およ び作用が本明細書と図面に含まれる概念を逸脱しない限りは、すべて本考案の範 囲の属すると見なされるべきである。What is particularly stated here is that the above description belongs to the description of a relatively ideal concrete embodiment of the invention, and if the effect and action that occur after partially modifying or changing the concept of the invention, All should be considered within the scope of the present invention without departing from the concepts contained in this specification and the drawings.
【００１９】 本考案の新型ニッケル・水素電池によると、その陰極ピースの一面に多孔性導 電基材自体が補助電極であるとした該補助電極を有し、これら多孔性導電基材お よび補助電極が触媒作用を有する多孔性導電材料で作られているため、その製造 の過程が比較的容易に制御でき、かつ電極を補助する効能が大いに増加され、さ らに電池充電の過程における水素と酸素との再結合能力が改良されているので、 電池内圧の問題が減少できる。According to the new nickel-hydrogen battery of the present invention, the porous conductive substrate itself is an auxiliary electrode on one surface of the cathode piece, and the porous conductive substrate and the auxiliary electrode are provided. Since the electrodes are made of a catalytic porous conductive material, the process of their production is relatively easy to control, and the efficiency of assisting the electrodes is greatly increased. Since the ability to recombine with oxygen is improved, the problem of battery internal pressure can be reduced.
【００２０】 また、本考案のニッケル・水素電池は、従来のニッケル・水素電池のように陰 極ピースの基材の上に水素貯蔵合金材料を被覆していない数多くの区域を形成し 補助電極とする構成をとらないため、水素貯蔵合金材料の面積が犠牲にされるこ ともなく、ニッケル・水素電池の陰極の容量が減少することもなく、ニッケル・ 水素電池の品質をも維持できるものである。In addition, the nickel-hydrogen battery of the present invention, like the conventional nickel-hydrogen battery, forms a large number of areas not covered with the hydrogen storage alloy material on the base material of the negative electrode piece to form auxiliary electrodes. Therefore, the area of the hydrogen storage alloy material is not sacrificed, the capacity of the cathode of the nickel-hydrogen battery is not reduced, and the quality of the nickel-hydrogen battery can be maintained. .
【図１】 ニッケル・水素電池の構造見取り図である。FIG. 1 is a structural sketch of a nickel-hydrogen battery.
【図２】 従来のニッケル・水素電池の陰極ピースの構
造見取り図である。FIG. 2 is a structural sketch of a cathode piece of a conventional nickel-hydrogen battery.
【図３】 本考案のニッケル・水素電池の陰極ピースの
構造見取り図である。FIG. 3 is a structural sketch of a cathode piece of the nickel-hydrogen battery of the present invention.
【図４】 本考案のニッケル・水素電池の陰極ピースの
製造を示すフロー・シートの一実施態様である。FIG. 4 is an embodiment of a flow sheet showing the production of the cathode piece of the nickel-hydrogen battery of the present invention.
【図５】 本考案のニッケル・水素電池の陰極ピースの
製造を示すフロー・シートの他の実施態様である。FIG. 5 is another embodiment of the flow sheet showing the production of the cathode piece of the nickel-hydrogen battery of the present invention.
１００…陽極ピース、 ２００…導電極性基材、 ２０２、２０３…水素貯蔵合金材料、 ２０４…補助電極、 １…多孔性導電基材、 ２…補助電極、 ３…水素貯蔵合金材料。 100 ... Anode piece, 200 ... Conductive polar base material, 202, 203 ... Hydrogen storage alloy material, 204 ... Auxiliary electrode, 1 ... Porous conductive base material, 2 ... Auxiliary electrode, 3 ... Hydrogen storage alloy material.
Claims (1)
多孔性導電基材からなり、 当該多孔性導電基材の一つの面が一層の当該水素貯蔵合
金材料で被覆された後に適当にロール・プレス成形さ
れ、さらにその後焼結または硬化されて一体化された陰
極ピースであって、 当該陰極ピースの一つの面が水素貯蔵合金材料で被覆さ
れ、当該陰極ピースの別の一面が多孔性導電基材である
ように形成されてなることを特徴とする新型ニッケル・
水素電池。1. A cathode piece of a battery comprises a hydrogen storage alloy material and a porous conductive substrate, and one surface of the porous conductive substrate is coated with one layer of the hydrogen storage alloy material and then appropriately rolled. A cathode piece, which is press-molded and then sintered or cured to be integrated, wherein one surface of the cathode piece is coated with a hydrogen storage alloy material, and the other surface of the cathode piece is a porous conductive group. A new type of nickel characterized by being formed like a material
Hydrogen battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995012985U JP3025647U (en) | 1995-12-08 | 1995-12-08 | New nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995012985U JP3025647U (en) | 1995-12-08 | 1995-12-08 | New nickel-hydrogen battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3025647U true JP3025647U (en) | 1996-06-21 |
Family
ID=43160837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995012985U Expired - Lifetime JP3025647U (en) | 1995-12-08 | 1995-12-08 | New nickel-hydrogen battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3025647U (en) |
-
1995
- 1995-12-08 JP JP1995012985U patent/JP3025647U/en not_active Expired - Lifetime
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