JPH0973905A - Positive electrode plate for nickel storage battery - Google Patents
Positive electrode plate for nickel storage batteryInfo
- Publication number
- JPH0973905A JPH0973905A JP7228780A JP22878095A JPH0973905A JP H0973905 A JPH0973905 A JP H0973905A JP 7228780 A JP7228780 A JP 7228780A JP 22878095 A JP22878095 A JP 22878095A JP H0973905 A JPH0973905 A JP H0973905A
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- electrode plate
- positive electrode
- active material
- storage battery
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/32—Nickel oxide or hydroxide electrodes
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はニッケル系蓄電池用正極
板に関するものである。FIELD OF THE INVENTION The present invention relates to a positive electrode plate for a nickel-based storage battery.
【０００２】[0002]
【従来の技術】近年、蓄電池用極板、ニッケルカドミウ
ム蓄電池、ニッケル水素蓄電池等の正極活物質保持体及
び集電子として、電池の高容量化に伴いニッケル発泡体
が基板として用いられている。2. Description of the Related Art In recent years, nickel foams have been used as substrates for positive electrode active material holders and current collectors for storage battery plates, nickel-cadmium storage batteries, nickel-hydrogen storage batteries and the like as batteries have higher capacities.
【０００３】以下に従来のニッケル発泡体方式の蓄電池
用極板について説明する。図５は従来の発泡体の一部を
拡大したものである。図６は従来の極板の一部を示した
ものであり、活物質を充填した様子を示している。図５
の孔１１は約２００ミクロンから５００ミクロンの球面
籠形状となっており、活物質には水酸化ニッケルを主成
分として径が１０ミクロンから２０ミクロンの粒体がこ
の孔１１に充填されている。水酸化ニッケルそのものに
は導電性がないので、活物質１２が水酸化ニッケルのみ
では、金属ニッケル１０に直接接しない水酸化ニッケル
は蓄電池としての充放電を行うことができない。このた
め活物質中に導電剤となる金属コバルト等の添加剤が加
えられる。又、孔１１への充填に際しては、充填量の均
一化により電池容量のバラツキの削減がなされ、又、添
加剤の均一分散により電池用諸特性の安定化が図られて
いる。A conventional nickel foam type battery electrode plate for a storage battery will be described below. FIG. 5 is an enlarged view of a part of a conventional foam. FIG. 6 shows a part of a conventional electrode plate, and shows a state of being filled with an active material. FIG.
The hole 11 has a spherical cage shape of about 200 to 500 microns, and the active material is filled with particles having nickel hydroxide as a main component and a diameter of 10 to 20 microns. Since nickel hydroxide itself has no conductivity, nickel hydroxide not directly in contact with metallic nickel 10 cannot be charged / discharged as a storage battery if active material 12 is only nickel hydroxide. For this reason, an additive such as metallic cobalt serving as a conductive agent is added to the active material. When the holes 11 are filled, the filling amount is made uniform to reduce the variation in battery capacity, and the additives are uniformly dispersed to stabilize various battery characteristics.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
従来の構成では、ニッケル発泡体の孔１１のバラツキ、
金属ニッケル１０の太さのバラツキ、充填される活物質
１２の量のバラツキ、添加剤の分散バラツキなどにより
一定容量の蓄電池を得ることができない。従来例では±
７％ぐらいバラツキのあるものもある。又、金属ニッケ
ル１１の太さと密度、及び、活物質との距離によって、
急速に充放電を行うことが困難で、大電流を消費する電
気自動車等のモーター駆動電源用蓄電池極板としては不
向きである。However, in the above-mentioned conventional structure, the variation of the holes 11 of the nickel foam,
It is not possible to obtain a storage battery having a constant capacity due to variations in the thickness of the metallic nickel 10, variations in the amount of the active material 12 to be filled, variations in the dispersion of additives, and the like. In the conventional example ±
There are some variations of about 7%. Also, depending on the thickness and density of the metallic nickel 11 and the distance from the active material,
It is difficult to charge and discharge rapidly, and is not suitable as a storage battery electrode plate for a motor drive power source of an electric vehicle or the like that consumes a large current.
【０００５】本発明は、上記の問題点を解決するための
もので、活物質の主成分である水酸化ニッケルの粒子の
すべてが、ニッケル箔又はニッケル蒸着したフープに定
量、直接、接するとともに大電流の流し易いパンチング
メタルを芯材とすることにより、定容量で急速充放電可
能な蓄電池用極板を提供することを目的とする。The present invention is intended to solve the above-mentioned problems, and all of the particles of nickel hydroxide, which is the main component of the active material, directly and quantitatively contact the nickel foil or the nickel-deposited hoop. An object of the present invention is to provide an electrode plate for a storage battery, which has a constant capacity and can be rapidly charged and discharged by using a punching metal through which a current easily flows as a core material.
【０００６】[0006]
【課題を解決するための手段】この目的を達成するため
に本発明のニッケル系蓄電池用正極板は、ニッケル箔、
又は、樹脂フィルム或いは不織布にニッケル蒸着したフ
ープの片面又は両面に活物質ペーストをコーティング
し、乾燥した素活物質フープを複数枚重ね、この積層体
の中央部にパンチングニッケルメッキ鋼板をサンドイッ
チしたことを特徴とする。In order to achieve this object, a positive electrode plate for a nickel-based storage battery of the present invention is a nickel foil,
Or, coating the active material paste on one or both sides of the resin film or non-woven fabric nickel-deposited hoop, stacking a plurality of dried elementary material hoops, and sandwiching a punching nickel-plated steel plate in the center of this laminate. Characterize.
【０００７】尚、前記樹脂フィルム或いは不織布は、電
解液によって変質しない材質のものであれば特に限定さ
れるものでない。又、前記ニッケル箔又は樹脂フィルム
に電解液を通す微細孔又はパンチング孔を有するように
してもよい。又、前記樹脂フィルムの片面又は両面に金
属ニッケル蒸着を施すことも可能である。又、前記活物
質ペーストは水酸化ニッケルを主成分とし、性能向上の
ための添加剤として各種材料、結合剤及びバインダーで
構成することも可能である。又、前記パンチングニッケ
ルメッキ鋼板はバリ付パンチングニッケルメッキ鋼板を
用いることも可能である。又、前記パンチングニッケル
メッキ鋼板に予め活物質ペーストを片面又は両面にコー
ティングした後、サンドイッチすることも可能である。
又、前記素活物質フープを複数枚を重ね合わせてサンド
イッチする際、その表面に結合剤又は導電剤を含む結合
剤を塗布することも可能である。又、前記サンドイッチ
後の極板に微細孔をあけ、この部分に導電剤又は導体を
圧入し、金属ニッケル膜とパンチングニッケルメッキ鋼
板を確実に結合するようにすることも可能である。The resin film or the non-woven fabric is not particularly limited as long as it is a material that does not deteriorate by the electrolytic solution. Further, the nickel foil or the resin film may have fine holes or punching holes for passing an electrolytic solution. It is also possible to deposit metal nickel on one or both sides of the resin film. In addition, the active material paste may contain nickel hydroxide as a main component and various materials, binders and binders as additives for improving performance. The punched nickel-plated steel sheet may be a punched nickel-plated steel sheet with burrs. It is also possible to coat the punched nickel-plated steel sheet with the active material paste on one side or both sides in advance and then sandwich it.
In addition, when a plurality of the hoops of the active material are stacked and sandwiched, it is possible to apply a binder or a binder containing a conductive agent to the surface thereof. It is also possible to make fine holes in the electrode plate after sandwiching and press-fit a conductive agent or a conductor into this part to surely bond the metallic nickel film and the punched nickel-plated steel plate.
【０００８】[0008]
【作用】上記構成によって、ニッケル箔、又は、ニッケ
ル蒸着樹脂フィルム或いは不織布に均一に活物質ペース
トをコーティングすることにより活物質添加剤のバラツ
キ、活物質の反応量のバラツキを抑えることができ、よ
り定容量の蓄電池を得ることができる。又、この極板の
構成上すべての活物質が金属ニッケルに接しており、か
つ中央部にパンチングニッケルメッキ鋼板を有するので
急速に充放電を行うことができる。With the above structure, by uniformly coating the nickel foil or the nickel vapor-deposited resin film or nonwoven fabric with the active material paste, it is possible to suppress variations in the active material additive and variations in the reaction amount of the active material. A constant capacity storage battery can be obtained. In addition, since all the active materials are in contact with metallic nickel due to the structure of this electrode plate and the punching nickel-plated steel plate is provided in the central portion, rapid charge / discharge can be performed.
【０００９】[0009]
【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１は、本発明の実施例におけるニッケル
系蓄電池用正極板を用いた蓄電池の一構成例を示したも
のである。図中、１は正極板、２はセパレータ、３は負
極板を示す。FIG. 1 shows an example of the structure of a storage battery using a positive electrode plate for nickel-based storage battery according to an embodiment of the present invention. In the figure, 1 is a positive electrode plate, 2 is a separator, and 3 is a negative electrode plate.
【００１１】図２は、本発明のニッケル系蓄電池用正極
板の一構成例をイラストで示したものである。FIG. 2 is an illustration showing one structural example of the positive electrode plate for a nickel-based storage battery of the present invention.
【００１２】図３は、図２のＡ部を拡大したイラスト図
である。図２中の４−１は、バリ付パンチングニッケル
メッキ鋼板、５−１はバリ、５−２は導体、６は素活物
質フープを示す。又、図３中の７は孔径１０〜２０μ程
度の孔７−１を備えた樹脂フィルム、８は金属ニッケル
蒸着層、９は活物質ペーストを示す。FIG. 3 is an enlarged illustration of the portion A of FIG. In FIG. 2, 4-1 is a punched nickel-plated steel plate with burr, 5-1 is a burr, 5-2 is a conductor, and 6 is an active material hoop. Further, 7 in FIG. 3 is a resin film provided with holes 7-1 having a hole diameter of about 10 to 20 μm, 8 is a metal nickel vapor deposition layer, and 9 is an active material paste.
【００１３】本実施例では、厚さ３〜２０μの樹脂フィ
ルム７の両面に金属ニッケル蒸着層８を０．１〜３μ程
度の厚さに形成し、その両面に活物質ペースト９をコー
ティングし、乾燥させて厚さ３０〜１００μの素活物質
フープ６とした。そして中央部に、バリ付パンチングニ
ッケルメッキ鋼板４−１を配置し、その両サイドに素活
物質フープ６を複数枚重ねたものをサンドイッチし、ニ
ッケル系蓄電池用正極板とした。これによって得られる
極板の厚みは、用途、その他によっても異なるが０．３
〜２ｍｍ程度となる。又、本実施例では、極板に微細孔
をあけ、この微細孔に導体５−２を圧入し、金属ニッケ
ル蒸着層８とパンチングニッケルメッキ鋼板４−１を確
実に結合するようにした。In this embodiment, a metal nickel vapor deposition layer 8 is formed on both surfaces of a resin film 7 having a thickness of 3 to 20 μ to a thickness of about 0.1 to 3 μ, and an active material paste 9 is coated on both surfaces thereof. It was dried to obtain a hoop 6 having a thickness of 30 to 100 μm. Then, a punching nickel-plated steel plate 4-1 with a burr was arranged in the central portion, and a stack of a plurality of elementary material hoops 6 was sandwiched on both sides thereof to obtain a positive electrode plate for a nickel-based storage battery. The thickness of the resulting electrode plate is 0.3 depending on the application and other factors.
It becomes about 2 mm. Further, in this embodiment, fine holes are formed in the electrode plate, and the conductor 5-2 is press-fitted into the fine holes so that the metal nickel vapor deposition layer 8 and the punched nickel-plated steel plate 4-1 are securely connected.
【００１４】[0014]
【発明の効果】以上のように、本発明によればニッケル
箔、又は、ニッケル蒸着樹脂フィルム或いは不織布に均
一に活物質をコーティングすることにより、活物質や添
加剤のバラツキ、活物質の反応量のバラツキを抑えるこ
とができ、より定容量の蓄電池を得ることができる。
又、この極度の構成上すべての活物質が金属ニッケルに
接しており、かつ中央部に大電流を流すことのできる、
パンチングニッケルメッキ鋼板を有するので、急速に充
放電を行うことができる。As described above, according to the present invention, by uniformly coating the nickel foil or the nickel-deposited resin film or the non-woven fabric with the active material, the dispersion of the active material and the additive, and the reaction amount of the active material. Can be suppressed, and a storage battery with a more constant capacity can be obtained.
In addition, all active materials are in contact with metallic nickel due to this extreme structure, and a large current can flow in the central portion.
Since it has a punched nickel-plated steel sheet, it can be charged and discharged rapidly.
【００１５】尚、従来の極板は、活物質の利用率を向上
させるために水酸化コバルトや金属コバルト等の添加剤
を必要としたが、本発明では、すべての活物質の粒体が
金属ニッケル（蒸着層及びニッケルメッキ層）に接する
ためこれらの高価な添加剤を不要又は少量とすることが
できる効果がある。In the conventional electrode plate, an additive such as cobalt hydroxide or metallic cobalt was required to improve the utilization rate of the active material, but in the present invention, all the particles of the active material are metallic. Since it is in contact with nickel (the vapor-deposited layer and the nickel-plated layer), there is an effect that these expensive additives can be unnecessary or reduced in amount.
【図１】本発明の一実施例における蓄電池用正極板を用
いた蓄電池の一構成例を示すイラスト図FIG. 1 is an illustration diagram showing a configuration example of a storage battery using a storage battery positive electrode plate according to an embodiment of the present invention.
【図２】本発明の蓄電池用正極板の一構成例を示すイラ
スト図FIG. 2 is an illustration showing a configuration example of a positive electrode plate for a storage battery of the present invention.
【図３】図２のＡ部を拡大したイラスト図FIG. 3 is an enlarged illustration of part A of FIG.
【図４】本発明に用いる、バリなしパンチングニッケル
メッキ鋼板の斜視図FIG. 4 is a perspective view of a burr-free punched nickel-plated steel plate used in the present invention.
【図５】従来のニッケル発泡体の拡大図FIG. 5 is an enlarged view of a conventional nickel foam.
【図６】従来の蓄電池用極板の斜視図FIG. 6 is a perspective view of a conventional battery electrode plate.
１ 正極板 ２ セパレータ ３ 負極板 ４−１ バリ付パンチングニッケルメッキ鋼板 ４−２ バリなしパンチングニッケルメッキ鋼板 ５−１ バリ ５−２ 導体 ６ 素活物質フープ ７ 樹脂フィルム ７−１ 孔 ８ 金属ニッケル蒸着層 ９ 活物質ペースト １０ 金属ニッケル １１ 孔 １２ 活物質 DESCRIPTION OF SYMBOLS 1 Positive electrode plate 2 Separator 3 Negative electrode plate 4-1 Punching nickel plated steel plate with burr 4-2 Punching nickel plated steel plate without burr 5-1 Burr 5-2 Conductor 6 Material active material hoop 7 Resin film 7-1 Hole 8 Metal nickel vapor deposition Layer 9 Active material paste 10 Metallic nickel 11 Pore 12 Active material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻 政人 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masato Tsuji 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (9)
不織布にニッケル蒸着したフープの片面又は両面に活物
質ペーストをコーティングし、乾燥した素活物質フープ
を複数枚重ね、この積層体の中央部にパンチングニッケ
ルメッキ鋼板をサンドイッチしたニッケル系蓄電池用正
極板。1. A nickel foil or a resin film or a non-woven fabric is coated with an active material paste on one or both sides of a nickel-deposited hoop, and a plurality of dried active material hoops are stacked, and punching is performed at the center of this laminate. A positive electrode plate for nickel-based batteries that sandwiches nickel-plated steel plates.
によって変質しないものであることを特徴とする請求項
１記載のニッケル系蓄電池用正極板。2. The positive electrode plate for a nickel-based storage battery according to claim 1, wherein the resin film or the non-woven fabric is not deteriorated by an electrolytic solution.
液を通す微細孔又はパンチング孔を有することを特徴と
する請求項１又は２記載のニッケル系蓄電池用正極板。3. The positive electrode plate for a nickel-based storage battery according to claim 1, wherein the nickel foil or the resin film has fine holes or punching holes for passing an electrolytic solution.
は両面に金属ニッケル蒸着を施すことを特徴とする請求
項１乃至３の何れかに記載のニッケル系蓄電池用正極
板。4. The positive electrode plate for a nickel-based storage battery according to claim 1, wherein metal nickel vapor deposition is applied to one or both surfaces of the resin film or the non-woven fabric.
主成分とし、性能向上のための添加剤として各種材料、
結合剤及びバインダーを含むことを特徴とする請求項１
乃至４の何れかに記載のニッケル系蓄電池用正極板。5. The active material paste contains nickel hydroxide as a main component, and various materials as an additive for improving performance,
A binder and a binder are included, It is characterized by the above-mentioned.
5. The positive electrode plate for a nickel-based storage battery according to any one of 4 to 4.
バリ付きパンチングニッケルメッキ鋼板であることを特
徴とする請求項１乃至５の何れかに記載のニッケル系蓄
電池用正極板。6. The punched nickel-plated steel sheet,
It is a punching nickel plating steel plate with a burr, The positive electrode plate for nickel-type storage batteries in any one of Claim 1 thru | or 5 characterized by the above-mentioned.
め活物質ペーストを片面又は両面にコーティングした
後、サンドイッチすることを特徴とする請求項１乃至６
の何れかに記載のニッケル系蓄電池用正極板。7. The punched nickel-plated steel sheet is coated with an active material paste on one side or both sides in advance and then sandwiched.
The positive electrode plate for a nickel-based storage battery according to any one of 1.
ドイッチする際、その表面に結合剤又は導電剤を含む結
合剤を塗布することを特徴とする請求項１乃至７の何れ
かに記載のニッケル系蓄電池用正極板。8. The binder according to claim 1, wherein a binder or a binder containing a conductive agent is applied to the surface of the hoops when the hoops are stacked and sandwiched. Positive electrode plate for nickel-based batteries.
け、この部分に導電剤又は導体を圧入し、金属ニッケル
膜とパンチングニッケルメッキ鋼板を確実に結合するよ
うにしたことを特徴とする請求項１乃至８の何れかに記
載のニッケル系蓄電池用正極板。9. The electrode plate after sandwiching is provided with fine holes, and a conductive agent or a conductor is press-fitted into this part so that the metal nickel film and the punched nickel-plated steel plate are securely bonded. Item 9. The positive electrode plate for a nickel-based storage battery according to any one of Items 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7228780A JPH0973905A (en) | 1995-09-06 | 1995-09-06 | Positive electrode plate for nickel storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7228780A JPH0973905A (en) | 1995-09-06 | 1995-09-06 | Positive electrode plate for nickel storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0973905A true JPH0973905A (en) | 1997-03-18 |
Family
ID=16881739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7228780A Pending JPH0973905A (en) | 1995-09-06 | 1995-09-06 | Positive electrode plate for nickel storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0973905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4723737B2 (en) * | 2001-02-28 | 2011-07-13 | 株式会社東芝 | Positive electrode for nickel / hydrogen secondary battery, nickel / hydrogen secondary battery using the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05205746A (en) * | 1992-01-24 | 1993-08-13 | Matsushita Electric Ind Co Ltd | Collector for electrode, and manufacture thereof hydrogen occlusion electrode using this collector, and nickel-hydrogen storage battery |
| JPH06338329A (en) * | 1993-03-23 | 1994-12-06 | Mitsubishi Paper Mills Ltd | Manufacture of nickel plated nonwoven fabric electrode substrate |
| JPH07130370A (en) * | 1993-10-29 | 1995-05-19 | Matsushita Electric Ind Co Ltd | Coating type electrode and manufacture thereof |
-
1995
- 1995-09-06 JP JP7228780A patent/JPH0973905A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05205746A (en) * | 1992-01-24 | 1993-08-13 | Matsushita Electric Ind Co Ltd | Collector for electrode, and manufacture thereof hydrogen occlusion electrode using this collector, and nickel-hydrogen storage battery |
| JPH06338329A (en) * | 1993-03-23 | 1994-12-06 | Mitsubishi Paper Mills Ltd | Manufacture of nickel plated nonwoven fabric electrode substrate |
| JPH07130370A (en) * | 1993-10-29 | 1995-05-19 | Matsushita Electric Ind Co Ltd | Coating type electrode and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4723737B2 (en) * | 2001-02-28 | 2011-07-13 | 株式会社東芝 | Positive electrode for nickel / hydrogen secondary battery, nickel / hydrogen secondary battery using the same |
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