CN1185729C - Manufacturing method of alkaline battery electrode and battery produced using said method - Google Patents
Manufacturing method of alkaline battery electrode and battery produced using said method Download PDFInfo
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- CN1185729C CN1185729C CNB011445394A CN01144539A CN1185729C CN 1185729 C CN1185729 C CN 1185729C CN B011445394 A CNB011445394 A CN B011445394A CN 01144539 A CN01144539 A CN 01144539A CN 1185729 C CN1185729 C CN 1185729C
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- nickel
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- 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
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- Cell Electrode Carriers And Collectors (AREA)
Abstract
The present invention relates to a method for manufacturing electrodes of an alkaline accumulator by using a skeleton made of foaming iron or foaming iron alloy, which is mainly characterized in that the sponge with certain thickness is preprocessed by using a conventional method, and the surface of the sponge is in a conducting state. Then the sponge passes through the molysite solution of ferric sulfate or ferric aminosulfonic acid, nickel sulfate and ferric sulfate or the ferric nickel salt solution of nickel sulfamate and ferric aminosulfonic acid. The concentration of the molysite solution is controlled in the range from 55 to 60 gram per liter. The concentration of the ferric nickel salt solution is controlled in the state that nickel ions are from 30 to 60 gram per liter, and iron ions are from 15 to 50 gram per liter. After the electroplating operation is carried out according to a conventional technical method, the sponge residuum is burnt off under the protection of inert gas to make a skeleton of electrodes. The present invention is suitable for the battery electrodes of various types and sizes. The technical scheme of the present invention also comprises an alkaline accumulator of which electrodes having a basal body frame made of foaming iron or foaming iron alloy.
Description
Technical field
The present invention relates to the manufacture method of alkaline battery electrode.
Background technology
Further developing of alkaline battery not only requires battery performance to improve constantly, and also requires its manufacturing cost constantly to reduce simultaneously.And the cost of electrode manufacturing method and electrode skeleton is depended in the reduction of the improvement of battery performance and manufacturing cost basically.Tradition alkaline battery skeleton is foaming nickel, and the problem that this kind skeleton exists is that conductance is relatively poor; Surface oxidation in various degree can take place in pure nickel skeleton in process of production; Production has caused difficulty to relative in addition more weak tensile strength to serialization, simultaneously, the pure nickel fiber is easy fracture when high packed density, and foaming nickel is in process of production because the metallic nickel utilance is not high, and consume a large amount of nickel, high thereby the system of leading is the battery cost of battery skeleton with the pure nickel.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, provide to be difficult for oxidized alkaline battery electrode manufacture method in a kind of low cost of manufacture, intensity height, the production process.
Electrode skeleton composition of the present invention improves, and the basic point of departure of the technical scheme of electrode manufacturing method is:
Changing in the past, the alkaline battery skeleton has reduced the oxidation of battery skeleton in the production process based on the situation of nickel.Changed the conductance of battery skeleton.Increase intensity and be suitable for serialization production; Increase tenacity of fibre and make when filling active matter, no matter take dry powder compacting, lotion to apply filling and be more prone to be fit to the high density loading.Utilize spongy foaming iron-nickel alloy to be skeleton, not only make metallic nickel in battery, bring into play maximum effect, and aspect skeleton, created condition for raising electrode performance, reduction electrode cost.Shortcomings such as the present invention also is applicable to continuous slurry technology and discontinuous production, and the technology of having avoided sintering process to bring is loaded down with trivial details, labour intensity is big, seriously polluted.The present invention still is used to make the high-energy electrode, makes volumetric specific energy improve about 20% than sintered electrode.The present invention has also taken into full account and has economized on resources.
The technical scheme steps of the manufacture method of alkaline battery electrode of the present invention is as follows:
1) makes foaming iron-nickel alloy electrode skeleton: with the sponge of 1.4-1.8mm thickness, carry out preliminary treatment with conventional method, make its surface be conduction state, make it pass through sulphate of iron solution then, or the iron salt solutions of sulfamic acid iron, or the iron nickel salt solution of nickelous sulfate and ferric sulfate, or any salting liquid in four kinds of the iron nickel salt solutions of nickel sulfamic acid and sulfamic acid iron, above-mentioned preceding two kinds of iron salt solutions concentration are controlled in the scope of 55-60 grams per liter, the concentration of above-mentioned back two kinds of iron nickel salt solutions is controlled at nickel ion 30-60 grams per liter, after electroplating in the scope of iron ion 15-50 grams per liter, under inert gas shielding, burning-off sponge residue is made electrode skeleton again;
The method of above-mentioned processing sponge can be the method for chemical plating, and metal applicatory is copper, zinc, iron, nickel; Or plating aquadag.
2) in above-mentioned electrode skeleton, fill active material and make pole plate;
3) according to the kind and the model requirement of battery, above-mentioned pole plate is cut into different size;
4) remove the active material on the certain position on the pole plate;
5) the spot welding flow collection sheet obtains battery terminal.
The manufacture method of alkaline battery electrode of the present invention, wherein step 2 is that the pressure of dry powder shape active material with 30-300 ton/square centimeter is pressed in the above-mentioned electrode skeleton, obtains the thick pole plate of 0.1-2.0mm; Or the paste active material applied be filled in above-mentioned electrode skeleton, after under the 50-150 ℃ of condition dry 10-100 minute, the pressure with 30-300 ton/square centimeter is pressed into the pole plate of 0.1-2.0mm more then.
The manufacture method of alkaline battery electrode of the present invention, wherein step 2 be skeleton that 1.0-2.0mm is thick continuous or be interrupted (wherein " continuous " be meant with skeleton be banded, generally length is no less than 50 meters, fill by the active material lotion continuously." discontinuous " is meant that the skeleton with band shape cuts into bulk earlier, the piecemeal filling) coating of paste active material is filled on the pole plate, make different types of electrode.These active materials can be:
1) at least a in ball-shape nickel hydroxide or spherical hydroxide oxygen nickel, random graininess nickel hydroxide or random graininess hydroxide oxygen nickel, cobalt protoxide, metal cobalt powder, metal nickel powder, graphite powder, the acetylene black, or at least a dry powder added the lotion made from water-soluble binder, so that be filled in the three dimensions of spongy foaming iron-nickel alloy or pure spongy foaming iron fiber, make nickel electrode.
2) at least a in cadmium metal powder, spongy cadmium powder, cadmium oxide powder, cadmium hydroxide, graphite, acetylene black, the metal nickel powder, or the lotion that at least a adding water-soluble binder in the above-mentioned substance is made.So that be filled in the three dimensions of spongy foaming iron-nickel alloy fiber, make cadmium electrode.
Wherein water-soluble binder is meant water as solvent, the adhesive of making, and as polyvinyl alcohol (PVA), poly-tetrafluoro hexene supernatant liquid (PTFE), the methylcellulose that contracts (ME), the sodium carboxymethylcellulose pyce that contracts (CMC) etc.
3) rare earth is hydrogen-storage alloys such as AB5 type, rare earth based LAVES phase AB2 type, titanium system, iron system, at least a in the material, or minimum a kind of in the above-mentioned substance adds the lotion that water-soluble binder is made, so that be filled in the three dimensions of spongy foaming iron-nickel alloy fiber, make the nickel metal hydride electrode.
Then according to variety classes, the requirement of different model battery process, cut into different size, at the active material by the sonic cleaning certain position, spot welding nickel or nickel plated steel strip paillon foil are made the electrode that is suitable for variety classes, different model battery as collector.The alkaline battery of making can be an opening, also can seal; Can be column type, also can be square or button.
The use of the electrode made from technical solution of the present invention mainly can be divided into:
1) in positive pole, the negative pole manufacturing of nickel-cadmium cell, nickel metal hydride battery.
2) through the both positive and negative polarity pairing, insulating material on the therebetween, the container that the engineering plastics of packing into, nickel-clad steel plate, corrosion resistant plate etc. are made adds square, cylinder open battery that explosion-protection equipment is made.
3) both positive and negative polarity pairing, insulating material on the therebetween, the bulge that pack into through reeling engineering institute plastics nickel-clad steel plate, corrosion resistant plate etc. are made adds explosion-protection equipment, rounding cylindricality sealed cell.
4) also electrode can be matched through both positive and negative polarity, insulating material is made button cell on the therebetween.
Embodiment:
Utilize embodiment that the manufacture method of alkaline battery electrode of the present invention is described further below:
Embodiment 1
Nickel electrode
The electrode skeleton of this example is spongy foaming iron-nickel alloy, wide 195mm, and thick 1.3-1.8mm, surface density is 450 ± 50g/m
2Spherical hickelous nydroxide, cobalt protoxide, acetylene black are mixed by a certain percentage, be generally spherical hickelous nydroxide 90-98%, cobalt protoxide and acetylene black 1-10%, the sodium carboxymethylcellulose pyce that contracts (CMC) dry powder or methylcellulose (MC) dry powder that add about 0.5-2%, be mixed into lotion with deionized water, be placed on the iron-nickel alloy skeleton that to foam in the vertical or horizontal slurry stove lower slurry groove and pass through lotion, and with the surface pasting of squeegee cleaning skeleton, through 50-150 ℃ of dry 10-100 minute filling active material.Use 30-300 ton/cm on request
2Power suppress, make nickel electrode.According to the battery request of different model, cut into the small pieces of different size again, through the active material of cleaning certain position, the thin slice of one or more nickel of spot welding or iron-nickel alloy is finished electrode and is made as collector then.
Embodiment 2
The alloy hydride electrode
The electrode skeleton of this example is spongy foaming iron-nickel alloy, and 195mm is wide, and 1.3-1.8mm is thick, and surface density is 450 ± 50g/m
2, parallel by hopper below, keep in the hopper hydrogen storing alloy powder to fall evenly that failure of oscillation is moving enters in the spongy foaming iron-nickel alloy fibre space, the pressure with 30-300 ton/square centimeter is pressed into the nickel metal hydride electrode again.Cut into certain size according to different requirements and finish the electrode manufacturing.
Claims (5)
1. the manufacture method of an alkaline battery electrode is characterized in that may further comprise the steps:
1) makes foaming iron-nickel alloy electrode skeleton: with the sponge of 1.4-1.8mm thickness, carry out preliminary treatment with conventional method, make its surface be conduction state, make it pass through sulphate of iron solution then, the iron salt solutions of sulfamic acid iron, the iron nickel salt solution of nickelous sulfate and ferric sulfate, any salting liquid in four kinds of the iron nickel salt solutions of nickel sulfamic acid and sulfamic acid iron, above-mentioned preceding two kinds of iron salt solutions concentration are controlled in the scope of 55-60 grams per liter, the concentration of above-mentioned back two kinds of iron nickel salt solutions is controlled at nickel ion 30-60 grams per liter, after electroplating in the scope of iron ion 15-50 grams per liter, under inert gas shielding, burning-off sponge residue is made electrode skeleton again;
2) in described electrode skeleton, fill active material and make pole plate;
3) according to the kind and the model requirement of battery, described pole plate is cut into different size;
4) remove the active material on the certain position on the pole plate;
5) the spot welding flow collection sheet obtains battery terminal.
2. manufacture method as claimed in claim 1 is characterized in that step 2) be that electrode skeleton is placed in the mould, the pressure of dry powder shape active material with 30-300 ton/square centimeter is pressed in the described electrode skeleton, obtain the thick pole plate of 0.1-2.0mm.
3. manufacture method as claimed in claim 1, it is characterized in that step 2) be the paste active material to be applied be filled in the described electrode skeleton, after under the 50-150 ℃ of condition dry 10-100 minute, the pressure with 30-300 ton/square centimeter is pressed into the pole plate of 0.1-2.0mm more then.
4. as the described manufacture method of one of claim 1-3, it is characterized in that described filling active material is:
At least a in ball-shape nickel hydroxide or spherical hydroxide oxygen nickel, random graininess nickel hydroxide or random graininess hydroxide oxygen nickel, cobalt protoxide, metal cobalt powder, metal nickel powder, graphite powder, the acetylene black; Or it is at least a in the cadmium metal powder, spongy cadmium powder, cadmium oxide powder, cadmium hydroxide, graphite, acetylene black, metal nickel powder; Or rare earth is at least a in the hydrogen-storage alloys such as AB5 type, rare earth based LAVES phase AB2 type, titanium system, iron system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011445394A CN1185729C (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011445394A CN1185729C (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427493A CN1427493A (en) | 2003-07-02 |
| CN1185729C true CN1185729C (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011445394A Expired - Fee Related CN1185729C (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700894A (en) * | 2013-11-21 | 2014-04-02 | 山东润昇电源科技有限公司 | Method for producing nickel-metal hydride button battery from novel compound nickel electrode |
| CN111916719B (en) * | 2020-08-17 | 2021-05-07 | 苏州巴涛信息科技有限公司 | Lithium ion battery cathode material and preparation method and application thereof |
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- 2001-12-19 CN CNB011445394A patent/CN1185729C/en not_active Expired - Fee Related
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| CN1427493A (en) | 2003-07-02 |
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