JPH0290462A - Paste type alkaline battery - Google Patents
Paste type alkaline batteryInfo
- Publication number
- JPH0290462A JPH0290462A JP63242066A JP24206688A JPH0290462A JP H0290462 A JPH0290462 A JP H0290462A JP 63242066 A JP63242066 A JP 63242066A JP 24206688 A JP24206688 A JP 24206688A JP H0290462 A JPH0290462 A JP H0290462A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- paste
- current collector
- porous
- powder
- 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
- 239000011149 active material Substances 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- H01M4/80—Porous plates, e.g. sintered carriers
-
- 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
-
- 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
-
- 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
【発明の詳細な説明】
［産業上の利用分野］
本発明はペースト式アルカリ蓄電池に関し、特にその電
極の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a paste-type alkaline storage battery, and particularly to improvements in its electrodes.
［従来技術］
従来のペースト式アルカリ蓄電池では、ネット、エキス
バンドメタル、多孔板または発泡メタル等の集電体にペ
ースト状活物質を直接塗着した電極を用いていた。第２
図は従来のニッケルカドミウムアルカリ蓄電池の電極の
構成の一例を示している。この種の電極では、高容量化
に対する要求から、多孔板等からなる集電体１の両側に
ペースト状の活物質２を塗着したり、またはプレスによ
って圧着して一定体積中に多量の活物質２を付着させて
いる。[Prior Art] Conventional paste-type alkaline storage batteries use electrodes in which a paste-like active material is directly applied to a current collector such as a net, expanded metal, perforated plate, or foamed metal. Second
The figure shows an example of the structure of the electrodes of a conventional nickel-cadmium alkaline storage battery. In this type of electrode, due to the demand for high capacity, a paste-like active material 2 is coated on both sides of a current collector 1 made of a porous plate or the like, or a paste-like active material 2 is bonded with a press to obtain a large amount of active material in a certain volume. Substance 2 is attached.
［発明が解決しよとする課題］
しかしながら、この種の電極では、多量の活物質を集電
体１に付着させるため、電極及び電池を製造する工程（
乾燥、裁断工程等）において取り扱いに注意をしないと
、集電体から活物質が剥離してしまう問題がった。また
従来の電極では、ペスト状の活物質が接触する集電体１
の表面積が少ないために、活物質２と集電体１との間の
接触抵抗が大きくなる。その結果、この種の電極を用い
た従来の電池では、電池の内部抵抗が大きくなり、急速
充放電性能が悪く、高率放電時に放電電圧が下がる問題
があった。[Problems to be Solved by the Invention] However, in this type of electrode, in order to attach a large amount of active material to the current collector 1, the process of manufacturing the electrode and battery (
If care was not taken in handling during the drying, cutting process, etc., there was a problem that the active material could peel off from the current collector. In addition, in conventional electrodes, the current collector 1 that the pest-like active material comes into contact with
Since the surface area of the current collector 1 is small, the contact resistance between the active material 2 and the current collector 1 becomes large. As a result, conventional batteries using this type of electrode have problems such as increased internal resistance, poor rapid charging and discharging performance, and lower discharge voltage during high rate discharge.
本発明は、ペースト状活物質の集電体への塗着性を良好
ならしめると共に完成電極における活物質と集電体との
間の接触抵抗の低減を図ることを目的とするものである
。An object of the present invention is to improve the adhesion of a paste-like active material to a current collector and to reduce the contact resistance between the active material and the current collector in a completed electrode.
し課題を解決するための手段］
本発明は上記の問題点を解決するために、金属基体の両
面にニッケル粉末を焼結させて形成した多孔質層を設け
、この多孔質層の上にペースト状活物質を塗着した電極
を用いる。Means for Solving the Problems] In order to solve the above problems, the present invention provides a porous layer formed by sintering nickel powder on both sides of a metal substrate, and a paste is formed on the porous layer. An electrode coated with active material is used.
［作用コ
ニッケル粉末を焼結させて形成した多孔質層は、ネット
、エキスバンドメタル、多孔板または発泡メタルと比べ
て表面の凹凸度及び多孔度が大きい。[The porous layer formed by sintering the active co-nickel powder has a larger surface roughness and porosity than a net, expanded metal, perforated plate, or foamed metal.
したがってこの多孔質層の上にペースト状の活物質を塗
着すると、多孔質層の内部まで活物質が侵入して活物質
と集電体との接触面積が大きくなり、集電体と活物質と
の間の抵抗を小さくして電池の内部抵抗を下げることが
できる。その結果、高率放電時の放？Ｎｌｉ圧の低下を
防止することができる。Therefore, when a paste-like active material is applied on top of this porous layer, the active material penetrates into the porous layer, increasing the contact area between the active material and the current collector. The internal resistance of the battery can be lowered by reducing the resistance between the battery and the battery. As a result, the emission during high rate discharge? A decrease in Nli pressure can be prevented.
また多孔質層にすると活物質との密着性が著しく向上す
るため、活物質が集電体から剥離し難くなる。Moreover, since the porous layer significantly improves the adhesion with the active material, the active material becomes difficult to peel off from the current collector.
［実施例１ 以下図面を参照して本発明の実施例を詳細に説明する。[Example 1 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明で用いる電極の概略構成を示している。FIG. 1 shows a schematic configuration of an electrode used in the present invention.
同図において、１０はニッケル板を成形した多孔板（金
属基体）であり、この多孔板１０の両側にはニッケル粉
末を焼結して形成したニッケル焼結体からなる多孔質層
１１が設けられている。そして多孔質層１１の両側には
、ペスト状の活物質１２が塗着されている。なお本実施
例においては、多孔板１０と多孔質層１１とから集電体
が構成されている。In the figure, reference numeral 10 denotes a perforated plate (metal base) formed from a nickel plate, and porous layers 11 made of a nickel sintered body formed by sintering nickel powder are provided on both sides of the perforated plate 10. ing. A paste-like active material 12 is applied to both sides of the porous layer 11. In this embodiment, the current collector is composed of the porous plate 10 and the porous layer 11.
次に上記構成で陰極板を製造する場合について説明する
。まずニッケル焼結体を作るためには、水１００ｑにメ
チルセルロースを５０入れて混練して糊液を作成する。Next, the case of manufacturing a cathode plate with the above configuration will be explained. First, in order to make a nickel sintered body, 50 ml of methylcellulose is added to 100 q of water and kneaded to create a sizing solution.
そしてこの糊液に、ニッケルパウダーｉ ｏｏｑを入れ
て一７００ｍ１＋ｇ以下の減圧状態で混練してスラリー
を作る。このようにした得られたスラリーを多孔板１０
の両面にドクターブレイド法を用いて塗着し、１５０℃
で２０分間乾燥する。その後水素を含む還元性雰囲気に
おいて、９００℃の温度で１分間焼結して多孔質層にニ
ッケル焼結体）１１を作る。この多孔質層１１は、多孔
板１０の孔部にまでスラリーが充填されて形成されてい
る。このようにして集電体が得られたならば、次いで陰
極板として完成するために、生活物質である酸化カドミ
ウム１００（］に金属カドミウム１５ｇを混合し、糊料
としてテフロン微粉末を５０加えてペーストを作製する
。得られたペーストを上記の集電体の多孔質層１１の上
に塗着したらローラプレス等によって加圧し、その後乾
燥させることにより陰極板が完成する。Then, nickel powder IOOQ is added to this paste liquid and kneaded under a reduced pressure of -700ml+g or less to form a slurry. The slurry thus obtained is transferred to the perforated plate 10.
Apply to both sides using the doctor blade method and heat at 150°C.
Dry for 20 minutes. Thereafter, it is sintered at a temperature of 900° C. for 1 minute in a reducing atmosphere containing hydrogen to form a nickel sintered body (11) as a porous layer. This porous layer 11 is formed by filling even the holes of the porous plate 10 with slurry. Once the current collector is obtained in this way, in order to complete it as a cathode plate, 15 g of metal cadmium is mixed with 100 g of cadmium oxide, which is a living material, and 50 g of Teflon fine powder is added as a glue. A paste is prepared. Once the obtained paste is applied onto the porous layer 11 of the current collector, it is pressed with a roller press or the like, and then dried to complete the cathode plate.
上記のようにして製造した本発明による陰極板と従来の
陰極板とについて、活物質の剥離の程度を測定した。第
１表は、その結果を示しており、同表は従来の陰極板を
１とした場合における各製造工程での集電体からの活物
質の剥離状態を示している。The degree of exfoliation of the active material was measured for the cathode plate according to the present invention and the conventional cathode plate manufactured as described above. Table 1 shows the results, and the table shows the peeling state of the active material from the current collector in each manufacturing process when the conventional cathode plate is taken as 1.
上記第１表から明らかなように、本発明による陰極板で
は、従来の陰極板に比べて、集電体からの活物質の剥離
による不良を大巾に減少させることができた。As is clear from Table 1 above, the cathode plate according to the present invention was able to significantly reduce defects due to peeling of the active material from the current collector, compared to the conventional cathode plate.
また陽極として焼結式電極を用い、陰極として第２図に
示した従来の陰極板を用いた密閉形アルカリ蓄電池と、
陰極として第１図の構成の陰極板を用いた本発明のアル
カリ蓄電池の８ｃ１ＲＡ放電特性を測定した結果は、第
３図に示す通りである。Also, a sealed alkaline storage battery using a sintered electrode as an anode and a conventional cathode plate shown in FIG. 2 as a cathode,
The results of measuring the 8c1RA discharge characteristics of the alkaline storage battery of the present invention using the cathode plate having the configuration shown in FIG. 1 as the cathode are shown in FIG.
第３図において、Ａは第２図の従来の陰極板を使用した
密閉形アルカリ蓄電池の特性を示し、Ｂは第１図の構成
の陰極板を用いた本発明の密閉形アルカリ蓄電池の特性
を示している。第３図から、第１図の陰極板を使用した
本発明の密閉形アルカリ蓄電池Ｂが、第２図の従来の陰
極板を用いた密閉形アルカリ蓄電池Ａと比較して放電電
圧が高いことがわかる。In FIG. 3, A shows the characteristics of a sealed alkaline storage battery using the conventional cathode plate shown in FIG. 2, and B shows the characteristics of the sealed alkaline storage battery of the present invention using the cathode plate configured as shown in FIG. It shows. From FIG. 3, it can be seen that the sealed alkaline storage battery B of the present invention using the cathode plate shown in FIG. 1 has a higher discharge voltage than the sealed alkaline storage battery A using the conventional cathode plate shown in FIG. Recognize.
次に、放電開始後１．１０Ｖを切るまでの容量を比較す
ると、本発明による陰極板を使用した密閉形アルカリ蓄
電池Ｂは、従来の陰極板を用いた密閉形アルカリ蓄電池
Ａに比べて、２０％程度容量を向上せしめることができ
た。Next, when comparing the capacity from the start of discharge until the voltage drops below 1.10V, the sealed alkaline storage battery B using the cathode plate according to the present invention has a 20% lower capacity than the sealed alkaline storage battery A using the conventional cathode plate. We were able to improve the capacity by about %.
［発明の効果］
以上のように、金属基体の両面にニッケル粉末を焼結さ
せてなる多孔質層の上にペースト状活物質を塗着した電
極を用いると、多孔質層の内部まで活物質が侵入して活
物質と集電体との接触面積が大きくなり、集電体と活物
質との間の抵抗を小さくすることができるので、電池の
内部抵抗を下げることができ、高率放電時の放電電圧の
低下を防止することができる。また多孔質層を用いると
、活物質との密着性が著しく向上するため、活物質が集
電体から剥離し難くなる利点がある。[Effects of the Invention] As described above, when an electrode is used in which a paste-like active material is coated on a porous layer formed by sintering nickel powder on both sides of a metal base, the active material reaches the inside of the porous layer. enters and increases the contact area between the active material and the current collector, which can reduce the resistance between the current collector and the active material, lowering the internal resistance of the battery and allowing high rate discharge. It is possible to prevent a decrease in the discharge voltage at the time of discharge. Further, when a porous layer is used, the adhesion with the active material is significantly improved, so there is an advantage that the active material is difficult to peel off from the current collector.
第１図は本発明で用いるペースト式の電極の概略断面図
、第２図は従来のペースト式の電極の概略断面図、第３
図は第１図の構成の電極を用いた密閉形アルカリ蓄電池
と第２図の構成の陰極板を用いた密閉形アルカリ蓄電池
との放電特性を比較した曲線図である。
１・・・集電体、２．１１・・・ペースト状活物質、１
０・・・多孔板、１２・・・多孔質層にッケル焼結体）
。FIG. 1 is a schematic cross-sectional view of a paste-type electrode used in the present invention, FIG. 2 is a schematic cross-section of a conventional paste-type electrode, and FIG.
The figure is a curve diagram comparing the discharge characteristics of a sealed alkaline storage battery using an electrode having the configuration shown in FIG. 1 and a sealed alkaline storage battery using a cathode plate having the configuration shown in FIG. 1... Current collector, 2.11... Paste active material, 1
0... Porous plate, 12... Keckel sintered body in porous layer)
.
Claims (3)
多孔質層を設け、該多孔質層の上にペースト状活物質を
塗着した電極を用いることを特徴とするペースト式アル
カリ蓄電池。(1) A paste-type alkaline storage battery characterized in that a porous layer formed by sintering nickel powder is provided on both sides of a metal base, and an electrode is used in which a paste-like active material is coated on the porous layer.
ン微粉末を用いた請求項第１項記載のペースト式アルカ
リ蓄電池。(2) The paste type alkaline storage battery according to claim 1, wherein fine Teflon powder is used as a binder for the paste active material.
ペースト式アルカリ蓄電池。(3) The paste type alkaline storage battery according to claim 1, wherein the metal substrate is a porous plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63242066A JPH0290462A (en) | 1988-09-27 | 1988-09-27 | Paste type alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63242066A JPH0290462A (en) | 1988-09-27 | 1988-09-27 | Paste type alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290462A true JPH0290462A (en) | 1990-03-29 |
Family
ID=17083773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63242066A Pending JPH0290462A (en) | 1988-09-27 | 1988-09-27 | Paste type alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290462A (en) |
-
1988
- 1988-09-27 JP JP63242066A patent/JPH0290462A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2987567A (en) | Dry-charged negative electrode | |
| JPH03503820A (en) | Rechargeable nickel electrode-containing electrochemical cell and method for manufacturing the same | |
| JP3347561B2 (en) | Solid oxide fuel cell | |
| JP3643006B2 (en) | Solid oxide fuel cell cell | |
| JPH0290462A (en) | Paste type alkaline battery | |
| US2744948A (en) | Primable electric batteries employing cuprous chloride | |
| US4930211A (en) | Silver electrode for electrochemical cell | |
| JPS593915A (en) | Electric double layer capacitor | |
| JPS6041426B2 (en) | Manufacturing method of sintered substrate for storage battery electrode plate | |
| JPH11233120A (en) | Electrode for alkaline storage battery and its manufacture | |
| JPS59143275A (en) | Base plate for alkaline storage battery | |
| JPH0582027B2 (en) | ||
| KR100238443B1 (en) | The structure for lithium polymer secondary batteries unit cell using the electrode material slurry of including polymer and method thereof | |
| JPS58166666A (en) | Manufacturing method of single cell for fuel cell | |
| JPS6269465A (en) | Cathode plate for nickel-cadmium alkaline storage battery | |
| JPH08138680A (en) | Electrode base plate for battery and manufacture thereof | |
| JPS60140657A (en) | Production of hydrogen-occluding electrode | |
| JPS5887765A (en) | Manufacture of electrode plate for battery | |
| JPS61135054A (en) | Manufacture of nickel electrode for alkaline secondary battery | |
| JP2615869B2 (en) | Cadmium negative electrode for alkaline storage batteries | |
| JPH0787096B2 (en) | Manufacturing method of electrode plate for lead-acid battery | |
| JPS63257182A (en) | Manufacture of cathode for molten carbonate fuel cell | |
| JPS62154568A (en) | Manufacture of plate alkaline storage battery | |
| JPH01189862A (en) | Manufacture of negative electrode plate for sealed type alkaline lead-acid battery | |
| JPH05174814A (en) | Manufacture of sintered substrate for alkaline storage battery |