JPH02244555A - Zinc electrode for alkaline storage battery - Google Patents
Zinc electrode for alkaline storage batteryInfo
- Publication number
- JPH02244555A JPH02244555A JP1066616A JP6661689A JPH02244555A JP H02244555 A JPH02244555 A JP H02244555A JP 1066616 A JP1066616 A JP 1066616A JP 6661689 A JP6661689 A JP 6661689A JP H02244555 A JPH02244555 A JP H02244555A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- paste
- zinc
- pectin
- alkaline storage
- 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
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 29
- 239000011701 zinc Substances 0.000 title claims description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000001814 pectin Substances 0.000 claims abstract description 8
- 229920001277 pectin Polymers 0.000 claims abstract description 8
- 235000010987 pectin Nutrition 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000011149 active material Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229910052709 silver Inorganic materials 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000004080 punching Methods 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002612 dispersion medium Substances 0.000 description 5
- -1 polytetrafluoroethylene Polymers 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- DUCFBDUJLLKKPR-UHFFFAOYSA-N [O--].[Zn++].[Ag+] Chemical compound [O--].[Zn++].[Ag+] DUCFBDUJLLKKPR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
-
- 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は可搬用、電気自動車用或はスタータ用などのｔ
源として用いられるニッケル亜鉛蓄電池や酸化銀亜鉛蓄
電池などのアルカリ蓄電池用亜鉛極に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to portable electric vehicles, electric vehicles, starters, etc.
The invention relates to zinc electrodes for alkaline storage batteries, such as nickel-zinc storage batteries and silver-zinc oxide storage batteries, which are used as sources.
従来の技術とその問題点
蓄電池における亜鉛１２極の製造方法は、亜鉛粉末単体
又は亜鉛粉末及び酸化ｒｉ 鉛粉末の混合物にポリテト
フフ〜オロエチレン樹脂ｍ維を混ぜ、ロール掛けにより
シート状と成し、銅又は銀集電体に圧着していた。Conventional technology and its problems The method for manufacturing zinc 12 electrodes in storage batteries is to mix polytetrafluoroethylene resin m fibers with zinc powder alone or with a mixture of zinc powder and lead oxide powder, roll it into a sheet shape, and then roll it into a sheet. Or it was crimped to a silver current collector.
しかし、この方法では殆どが手作業であり大量生産が難
しい。However, with this method, most of the work is done by hand, making mass production difficult.
又、亜鉛粉末単体又は亜鉛粉末及び酸化亜鉛粉末の混合
物にポリテトフフ〜オロエチレン樹脂繊維を混ぜ、分散
媒を用いペースト状と成し、銅又は銀集電体に、塗布す
る方法もある。Another method is to mix polytetrafluoroethylene resin fibers with zinc powder alone or with a mixture of zinc powder and zinc oxide powder, form a paste using a dispersion medium, and apply the paste to a copper or silver current collector.
しかし、この方法ではポリテトフフμオロエチレン樹脂
繊維表面を濡らし、これを延はすためには、エタノール
、イソプロピルアルコールなどの有機系分散媒が必要と
なり、製造コストが高くなる欠点をもつとともに、作業
者の健康管理に問題がある。However, this method requires an organic dispersion medium such as ethanol or isopropyl alcohol in order to wet the surface of the polytetrafluoroethylene resin fiber and spread it, which has the disadvantage of increasing production costs and requiring workers to use it. There is a problem with health management.
従来、亜鉛粉末単体又は亜鉛粉末及び酸化亜鉛粉末の混
合物に結着剤として、ポリビニルアｐ ’：１ ／Ｌ
’ 、ポリエチレンオキサイド或はポリアクリル酸、ポ
リアクリル酸ナトリウムの水溶液を用いペースト化した
場合、添加水溶液源な制限すれば、ペーストが流動性を
示さないため、第１図に示すような引き上げペースト方
式では塗布できなかった。Conventionally, polyvinyl ap':1/L was added as a binder to zinc powder alone or to a mixture of zinc powder and zinc oxide powder.
', When making a paste using an aqueous solution of polyethylene oxide, polyacrylic acid, or sodium polyacrylate, the paste does not exhibit fluidity if the source of the added aqueous solution is limited, so a pull-paste method as shown in Figure 1 is used. I couldn't apply it.
又、水分の添加量を増やして塗布可能なペーストにする
ためには、亜鉛粉末単体又は亜鉛粉末及び酸化亜鉛粉末
の混合物重量に対し２、半分以上の上記水溶液を必要と
するため、乾燥に大量のエネルギーが必要となる。又、
乾燥後の極板はクツツクが多数出来るために活物質が脱
落し易い郷の欠点があった。In addition, in order to increase the amount of water added and make a paste that can be coated, the amount of the above aqueous solution must be more than 2.5 times the weight of the zinc powder alone or the mixture of zinc powder and zinc oxide powder, so a large amount is required for drying. energy is required. or,
After drying, the electrode plate had a disadvantage in that the active material easily fell off due to the formation of many cracks.
発明の目的
本発明は上記従来の問題点に鑑みなされたものであり、
少ない分散媒で優れた流動性を示すペーストにより、生
産性の高い且つ放電性能に優れたアルカリ蓄電池用亜鉛
極を提供することを目的とするものである。Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems.
The object of the present invention is to provide a zinc electrode for alkaline storage batteries with high productivity and excellent discharge performance using a paste that exhibits excellent fluidity with a small amount of dispersion medium.
発明の構成
本発明は上記目的を達成するべく、亜鉛粉末単体又は亜
鉛粉末及び酸化亜鉛粉末の結着剤にペクチンを用いるこ
とを特徴としたアルカリ蓄電池用亜鉛極である。Structure of the Invention In order to achieve the above object, the present invention is a zinc electrode for an alkaline storage battery, characterized in that pectin is used as a binder for zinc powder alone or for zinc powder and zinc oxide powder.
又、セルロース系、ポリアミド系或はポリオレフィン系
の単繊維を混合したアルカリ蓄電池用亜鉛極である。It is also a zinc electrode for alkaline storage batteries, which is a mixture of cellulose-based, polyamide-based, or polyolefin-based single fibers.
作 用
ペクチン水溶液を用（することにより、少ない分散媒量
でペーストに流動性を持たせることが出来る。その上、
第１図の引ぎ上げ式の塗布装置が使用でき、ペーストが
集電体に十分絡み、引き上げられるため、厚い極板の製
造が可能となり、エネルギー密度の高い極板の製造がで
きる。By using an aqueous pectin solution, it is possible to give the paste fluidity with a small amount of dispersion medium.
The pull-up coating device shown in FIG. 1 can be used, and since the paste is sufficiently entwined with the current collector and pulled up, it is possible to manufacture thick electrode plates and electrode plates with high energy density.
実施例 以下本発明の詳細について一実施例により説明する。Example The details of the present invention will be explained below using an example.
第１図は引き上げペースト方式の連続塗布装置の概略図
、第２図は本発明による電池と従来の電池との放電特性
の比較図である。FIG. 1 is a schematic diagram of a pull-up paste type continuous coating device, and FIG. 2 is a comparison diagram of the discharge characteristics of a battery according to the present invention and a conventional battery.
こ−で、１は集電体、２はペーストホッパー、３はペー
スト調厚治具、４は乾燥炉、５はヒーター、６は乾燥炉
内変角ロー〜、７は変角ロー〜、８は極板調厚用ロー〃
、９は巻き取りロー〜である。Here, 1 is a current collector, 2 is a paste hopper, 3 is a paste thickness adjustment jig, 4 is a drying oven, 5 is a heater, 6 is a bending angle low in the drying oven, 7 is a bending angle low..., and 8 is a bending angle low ~. Row for plate thickness adjustment
, 9 are winding rows.
亜鉛粉末、酸化亜鉛粉末及び長さ２〜５畦のセルロース
系・ポリアミド系或はポリオレフィン系の単繊維を２０
０８８００ ： １の密合で混合した粉末に０．５〜２
％ペクチン水溶液を重量比率３：１〜４二１で混合し、
良好な流動性を示すペーストとする。このペーストを第
１図の連続塗布装置を用い、パンチング及び凹凸加工を
施した銅又は銀集電体に塗布する。第１図４の乾燥炉で
乾燥後、８の極板調厚用ロー〜に通し、多孔度４０％〜
５０％の亜鉛極を製造する。ペクチンを結着剤をするこ
とにより、機械的強度が大きく、電池の組み立て等の作
業性が良好であり、電池性能も優れている。又、極板に
単繊維を混合することにより、活物質の脱落が生じない
。20 pieces of zinc powder, zinc oxide powder, and cellulose-based, polyamide-based, or polyolefin-based single fibers with a length of 2 to 5 ridges.
08800: 0.5 to 2 to the powder mixed with a density of 1
% pectin aqueous solution at a weight ratio of 3:1 to 421,
The paste should have good fluidity. This paste is applied to a punched and textured copper or silver current collector using the continuous coating apparatus shown in FIG. After drying in the drying oven shown in Figure 1 4, it is passed through an electrode plate thickness adjusting row of 8 to have a porosity of 40% or more.
Produce 50% zinc electrodes. By using pectin as a binder, mechanical strength is high, workability such as battery assembly is good, and battery performance is also excellent. Furthermore, by mixing single fibers into the electrode plate, the active material does not fall off.
ニッケル亜鉛蓄電池は以下の構成よりなる。The nickel-zinc storage battery consists of the following composition.
ニッケルシンター極板から成る正極板、本発明によるア
ルカリ蓄［池用亜鉛極板から成る負極板、正極板又は負
極板に接した保液紙はセルロース系、ポリアミド系或は
ポリオレフィン系の不織布から成る。セパレータは微孔
ポリプロピレン膜、グフフトポリエチレン膜或はセロハ
ンである。A positive electrode plate made of a nickel sintered electrode plate, a negative electrode plate made of a zinc electrode plate for alkaline storage ponds according to the present invention, and a liquid retaining paper in contact with the positive electrode plate or the negative electrode plate made of a cellulose-based, polyamide-based, or polyolefin-based nonwoven fabric. . The separator is a microporous polypropylene membrane, a soft polyethylene membrane, or cellophane.
電解液は比！１．３０〜１．４０の水酸化カリウムを主
体とする水溶液で正極、負極、セパレータ及び保液紙の
全空暉の９０％を満たす液量が注液されている。The electrolyte is ratio! An aqueous solution mainly composed of potassium hydroxide with a concentration of 1.30 to 1.40 is injected in an amount that satisfies 90% of the total volume of the positive electrode, negative electrode, separator, and liquid retaining paper.
本発明による亜鉛を極を使用したニッケＡ／Ｎ鉛電池Ａ
と結着剤にポリテトフフルオロエチレン樹脂ｍ維を用い
た従来亜鉛［極を使用したニッケ／Ｌ’亜鉛電池Ｂとの
性能を比較するために、放電特性を調べた。第２図にそ
の結果を示した。Nikke A/N lead battery A using zinc as electrode according to the present invention
The discharge characteristics were investigated in order to compare the performance of this battery and a conventional zinc/L'zinc battery B using polytetfluoroethylene resin fibers as a binder. Figure 2 shows the results.
放ｗｉｔ流はＩＣ１Ａである。The Wit style is IC1A.
本発明亜鉛！極を使用した電池Ａは従来亜鉛ＹＬ極を使
用した電池Ｂより放電々正特性に優れ、放電時間が長い
。Inventive zinc! Battery A using conventional electrodes has superior discharge characteristics and a longer discharge time than Battery B, which uses conventional zinc YL electrodes.
発明の効果
上述した如く、少ない分散媒で優れた流動性を示すペー
ストにより、生産性の高い■つ放電性能に優れたアルカ
リ蓄電池用亜鉛極を折供することが出来るので、その工
業的価値は極めて大である。Effects of the Invention As mentioned above, zinc electrodes for alkaline storage batteries with high productivity and excellent discharge performance can be manufactured by using a paste that exhibits excellent fluidity with a small amount of dispersion medium, so its industrial value is extremely high. It's large.
第１図は引き上げペースト方式の連続塗布装置の概略図
、第２図は本発明によるＹＩｔ、池と従来の電池との放
電特性の比較図である。
１・・・ａｔｔｔ体 ２・・・ペーストホッ
パー３・・・ペースト層厚治具 ４１１．乾燥炉５
・・・ヒーター ６・・・乾燥炉内変角ロー〜
７・・・変角ローｌｖ ８・・・極板調厚用ロー
μ９・・・巻き取りロールFIG. 1 is a schematic diagram of a pull-paste type continuous coating device, and FIG. 2 is a comparison diagram of the discharge characteristics of the YIt battery according to the present invention and a conventional battery. 1...attt body 2...paste hopper 3...paste layer thickness jig 411. Drying oven 5
...Heater 6...Drying oven low angle bending ~
7... Variable angle roll lv 8... Roll for adjusting plate thickness μ9... Winding roll
Claims (2)
鉛活物質の結着剤として、ペクチンを用いたことを特徴
とするアルカリ蓄電池用亜鉛極。(1) A zinc electrode for an alkaline storage battery, characterized in that pectin is used as a binder for a zinc active material made of zinc, zinc oxide, or a mixture thereof.
系の単繊維を混合した請求項１記載のアルカリ蓄電池用
亜鉛極。(2) The zinc electrode for an alkaline storage battery according to claim 1, comprising a mixture of cellulose-based, polyamide-based, or polyolefin-based single fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066616A JPH02244555A (en) | 1989-03-17 | 1989-03-17 | Zinc electrode for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066616A JPH02244555A (en) | 1989-03-17 | 1989-03-17 | Zinc electrode for alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02244555A true JPH02244555A (en) | 1990-09-28 |
Family
ID=13321012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1066616A Pending JPH02244555A (en) | 1989-03-17 | 1989-03-17 | Zinc electrode for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02244555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6818348B1 (en) * | 2000-02-10 | 2004-11-16 | Ovonic Battery Company, Inc. | Nickel hydroxide paste with molasses binder |
-
1989
- 1989-03-17 JP JP1066616A patent/JPH02244555A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6818348B1 (en) * | 2000-02-10 | 2004-11-16 | Ovonic Battery Company, Inc. | Nickel hydroxide paste with molasses binder |
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