JPS62256367A - Nickel electrode for alkaline battery - Google Patents
Nickel electrode for alkaline batteryInfo
- Publication number
- JPS62256367A JPS62256367A JP61101847A JP10184786A JPS62256367A JP S62256367 A JPS62256367 A JP S62256367A JP 61101847 A JP61101847 A JP 61101847A JP 10184786 A JP10184786 A JP 10184786A JP S62256367 A JPS62256367 A JP S62256367A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- powder
- filled
- coo
- electrode
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 15
- 239000011149 active material Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 10
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 150000001869 cobalt compounds Chemical class 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000033444 hydroxylation Effects 0.000 description 2
- 238000005805 hydroxylation reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 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
- H01M4/72—Grids
- H01M4/74—Meshes or woven material; Expanded metal
- H01M4/745—Expanded metal
-
- 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
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
-
- 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)
- Inorganic Chemistry (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分骨
本発明はアルカリ電池用ニッケル極に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Industrial Application The present invention relates to a nickel electrode for alkaline batteries.
従来技術とその間順点
近年、予備電源、５ｔｌｊｊ用電源、各種電子機器電源
、非常灯用電源として重要なアルカリ電池油に用いられ
るニッケル極として、焼結式極板に替えてペースト式極
板が製作されるようになっ丁番＄−７柄はベースｂｅｈ
にが寞穿摩に活物質充填ができること、焼結式極板にお
ける活物質の充填方法はｆＡ船な工程を繰返す溶液含浸
法でありコストが高くつくのに比べて、工数を要しない
ので安価であることによるものである。Conventional technology and ranking points In recent years, paste-type electrode plates have replaced sintered-type electrode plates as nickel electrodes used in alkaline battery oil, which is important as a backup power source, 5TLJJ power source, various electronic equipment power sources, and emergency lighting power source. The hinge $-7 pattern is now made based on beh
It is possible to fill the active material into the sintered electrode plate, and the method of filling the active material in the sintered electrode plate is a solution impregnation method that repeats the process of fA ship, which is expensive, but it is inexpensive because it does not require man-hours. This is due to the fact that
しかしながらこれらのペースト式極板は、導電性芯体と
して耐アルカリ性金ｊｌｉ！繊維焼結体を用いているの
で、製作工種々なトラブルを生じ極板性能を不安定にし
ていた。その１つに１金属繊維焼結体は金ａｍ維の分布
のバラツキにより焼結体の厚さにバラツキが生じそれに
よって充填される活物質充填量が変動し、均一な電極特
性を得ることが困離であった。又活物質充填においても
繊維の焼結体を芯体としているので、芯体の引張強度が
弱いので充填活物質の規制はローラ一方式でなければな
らず、均一なｆ、の規制が出来ずさらに引張力が弱いの
で生産スピードは、せいぜい３００ ｍ７ｍが限界であ
つた。However, these paste-type electrode plates use alkali-resistant gold as the conductive core. The use of sintered fibers caused various manufacturing problems and made the electrode plate performance unstable. One of these is that metal fiber sintered bodies have variations in the thickness of the sintered bodies due to variations in the distribution of gold and am fibers, which causes variations in the amount of active material filled, making it difficult to obtain uniform electrode characteristics. I was at a loss. Also, when filling the active material, a sintered fiber body is used as the core, so the tensile strength of the core is weak, so the regulation of the filled active material must be done with a roller, making it impossible to regulate uniform f. Furthermore, since the tensile force was weak, the production speed was limited to 300 m7m at most.
さらにこれらペースト式極板は、焼結式極板に比べ著し
く活物質利用率が悪く、実用上使用しえなかった。Furthermore, these paste-type electrode plates had a significantly lower active material utilization rate than sintered-type electrode plates, and could not be used practically.
発明の目的
本発明は活物質利用率の向上した、高性能で容量の安定
した生産性の高いアルカリ電池用ニッケル極板を提供す
ることを目的とするものである。OBJECTS OF THE INVENTION It is an object of the present invention to provide a nickel electrode plate for alkaline batteries that has improved active material utilization, high performance, stable capacity, and high productivity.
発明の構成
本発明は上記目的を達成するべく、耐アルカリ性金属か
らなるエキスパンドメタル多孔体基板において、その孔
径が１０〜１００μｍであり且つ水酸化ニッケル粉末を
主成分とじＣ００Ｉα−Ｃ。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an expanded metal porous substrate made of an alkali-resistant metal, which has a pore diameter of 10 to 100 μm and contains nickel hydroxide powder as a main component.
（ＯＨ）２ ｒβ−Ｃｏ（ＯＨ）２粉末の少なくとも１
種以上を５〜５０ｗｔ％混合した活物質粉末を充填する
ことを特徴とするアルカリ１ｉ池川ニツケル電極である
。ペースト式ニッケル極板は、焼結式ニッケル極板に比
較し、利用率が著しるしく悪い。その原因は集電体と活
物質問との導電パスが長く、活物質が充分放電できない
ことに起因する。ＣｏＯや水酸化コバルトの内特にａ−
ｃｏ（ＯＨ）ｚやβ−Ｃｏ（ＯＨ）２等の二価コバルト
化合物でアルカリに溶解しやす＜ Ｈ（３００２−イオ
ンを発生する化合物を混合しておくと、活物質に０ｏＯ
ＯＨの導電性被膜がコーティングされ、ペースト式極板
でも炉結式極板並みに活物質利用率が向上するものであ
る。At least one of (OH)2 rβ-Co(OH)2 powder
This is an alkaline 1i Ikegawa nickel electrode characterized in that it is filled with an active material powder containing 5 to 50 wt% of a mixture of at least one species. Paste-type nickel plates have a significantly lower utilization rate than sintered nickel plates. The reason for this is that the conductive path between the current collector and the active material is long, and the active material cannot be sufficiently discharged. Of CoO and cobalt hydroxide, especially a-
Divalent cobalt compounds such as co(OH)z and β-Co(OH)2 that are easily soluble in alkali <H(3002-) can be mixed with a compound that generates ions to give 0oO to the active material.
The paste-type electrode plate is coated with an OH conductive film, and the active material utilization rate is improved to the same degree as that of the furnace-bonded electrode plate.
実施例 以下に本発明の実施例について詳述する。Example Examples of the present invention will be described in detail below.
平均粒子径５．ｐｍの水酸化＝ツケル８０ｗｔ％、Ｃｏ
ｏ ２０ｗｔ％を混合した活物質粉末に水及びカルボキ
シメチルセル四−ス等からなる水溶液を加えてスラリー
状にｍ製する。この不ラリ−を目開き１０ｔ２０＋４０
ｔ６０．８０ｔ１００ｔ１２０ｕｔ （０７ｍ類のエキ
スパンドメタル、厚さ１．３鋼を用いて、充填し、乾燥
、田−ルプレスにより厚み０．７ｆＩ常に調節しニッケ
ル極とした。Average particle size5. Hydroxylation of pm = Tsukel 80wt%, Co
o An aqueous solution consisting of water and carboxymethyl cellulose is added to the active material powder mixed with 20 wt% to form a slurry. The opening of this irregularity is 10t20+40
t60.80t100t120ut (07m type expanded metal, thickness 1.3 steel was used to fill, dry, and constantly adjust the thickness to 0.7fI using a field press to form a nickel electrode.
ニッケル極の活物質利用率を調べた結果を第１図に示し
た。第１図の結果より１０〜１００μｍの孔径が活物質
利用率に優れている。孔径が１０μｍ以下では、活物質
の充填が困難であり、極板として用いることができない
。Figure 1 shows the results of investigating the active material utilization rate of the nickel electrode. From the results shown in FIG. 1, pore diameters of 10 to 100 μm are excellent in active material utilization. If the pore diameter is 10 μm or less, it is difficult to fill the active material and it cannot be used as an electrode plate.
次に目開き４０μｍのエキスパンドメタルを用いて、平
均粒子径５μｍの水酸化ニッケルニＣｏＯの混合量を、
０ｔ５１１０＃２０ｔ３０＃４０ｆｔ％とした時の活物
質利用率、極板容量について調べた結果を第２図に示し
た。第２図の結果よりコバルト化合物の混合量は、１０
〜３０ｖｔ％が活物質利用率、極板容量共に優れている
。Next, using an expanded metal with an opening of 40 μm, mix the amount of nickel hydroxide di-CoO with an average particle size of 5 μm.
Figure 2 shows the results of investigating the active material utilization rate and electrode plate capacity when 0t5110#20t30#40ft%. From the results shown in Figure 2, the amount of cobalt compound mixed is 10
~30vt% is excellent in both active material utilization and electrode plate capacity.
尚、上記実施例においては、Ｃ００について述べたが、
β−Ｃｏ（ＯＨ）２１ （Ｚ−Ｃｏ（ＯＨ）２において
も同様の効果がある。In addition, in the above example, C00 was described, but
β-Co(OH)21 (Z-Co(OH)2 also has a similar effect.
コバルト化合物の混合量によって、０ｏＯＯＨの厚さが
増し電導性が良好となるが１混合量が３０％以上になる
とその効果にきわだりた差が晃られず混合量の増加に伴
なう水酸化ニッケル活物質の含有率が低下し、容量減少
を生じている。Depending on the amount of cobalt compound mixed, the thickness of 0oOOH increases and the conductivity improves, but when the amount of 1 mixture exceeds 30%, there is no noticeable difference in the effect, and as the amount of cobalt compound increases, hydroxylation occurs. The content of nickel active material has decreased, resulting in a decrease in capacity.
本発明は、芯体としてエキスパンドメタルをｍいている
ので活物質充填の規制はドクターナイフを用いることが
できるので、均一な量の規制ができる。さらにエキスパ
ンドメタルは芯体強度が大であるので、生産スピードを
３〜４倍とができる。In the present invention, since expanded metal is used as the core, a doctor knife can be used to control the filling of the active material, so that a uniform amount can be controlled. Furthermore, since expanded metal has a high core strength, the production speed can be increased 3 to 4 times.
発明の効果
本発明は活物質利用率の向上した、高性能で容量の安定
した生産性の高いアルカリ電池用ニッケル極を提供する
ことが出来るので、その工梁的価値は應めて大である。Effects of the Invention The present invention can provide a nickel electrode for alkaline batteries with improved active material utilization, high performance, stable capacity, and high productivity, so its value in terms of construction is great. .
第１図は本発明のニッケル極におけるエキスパンドメタ
ルの孔径と活物質利用率の関係を示した図、第２図は本
発明のニッケル極におけるコバルト化合物の混合量と活
物質利用率、極板容量との関係を示した閾である。Figure 1 is a diagram showing the relationship between the expanded metal pore diameter and the active material utilization rate in the nickel electrode of the present invention, and Figure 2 is the relationship between the amount of cobalt compound mixed, the active material utilization rate, and the plate capacity in the nickel electrode of the present invention. This is a threshold showing the relationship between
Claims (1)
板において、その孔径が１０〜１００μｍであり且つ水
酸化ニッケル粉末を主成分としＣｏＯ、α−Ｃｏ（ＯＨ
）＿２、β−Ｃｏ（ＯＨ）＿２粉末の少なくとも１種以
上を５〜３０ｗｔ％混合した活物質粉末を充填すること
を特徴とするアルカリ電池用ニッケル極。An expanded metal porous substrate made of an alkali-resistant metal has a pore diameter of 10 to 100 μm and contains nickel hydroxide powder as the main component, including CoO, α-Co(OH
A nickel electrode for an alkaline battery, characterized in that it is filled with an active material powder containing 5 to 30 wt% of at least one of β-Co(OH)_2 powder and β-Co(OH)_2 powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101847A JPS62256367A (en) | 1986-04-30 | 1986-04-30 | Nickel electrode for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101847A JPS62256367A (en) | 1986-04-30 | 1986-04-30 | Nickel electrode for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62256367A true JPS62256367A (en) | 1987-11-09 |
Family
ID=14311444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61101847A Pending JPS62256367A (en) | 1986-04-30 | 1986-04-30 | Nickel electrode for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62256367A (en) |
-
1986
- 1986-04-30 JP JP61101847A patent/JPS62256367A/en active Pending
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