CN1427492A - 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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- CN1427492A CN1427492A CN01144538A CN01144538A CN1427492A CN 1427492 A CN1427492 A CN 1427492A CN 01144538 A CN01144538 A CN 01144538A CN 01144538 A CN01144538 A CN 01144538A CN 1427492 A CN1427492 A CN 1427492A
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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
Abstract
An electrode of alkaline accumulator is prepared through pretreating sponge to make its surface be electrically conductive, possing it through the solution of copper salt or nickel copper salt, electroplating, and burning off the sponge in the protection of inertial gas to obtain the skeleton of electrode. The accumulator made of said electrode is also disclosed.
Description
Technical field
The present invention relates to the manufacture method of alkaline battery electrode and the storage battery made from this method.
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, the storage battery that is difficult for oxidized alkaline battery electrode manufacture method in a kind of low cost of manufacture, intensity height, the production process and makes with this method is provided.
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 foam copper alloy or pure spongy foam copper 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 foam copper or foam copper 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 copper sulphate or sulfamic acid copper copper salt solution then, or the copper nickel salt solution of nickelous sulfate and copper sulphate or nickel sulfamic acid and sulfamic acid copper, above-mentioned copper salt solution concentration is controlled in the scope of 55-60 grams per liter, the concentration of above-mentioned copper nickel salt solution is controlled at nickel ion 30-60 grams per liter, in the scope that copper ion 15-50g/ rises, after process is electroplated routinely, 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 iron, zinc, copper, 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 tons/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, then after under 50 ~ 150 ℃ of conditions dry 10 ~ 100 minutes, use 30 ~ 300 tons/square centimeter pressure to be pressed into the pole plate of 0.1 ~ 2.0mm again.
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 foam copper alloy or pure sponge shape foam copper 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 foam copper alloy or pure sponge shape foam copper 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, copper 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 foam copper alloy or pure sponge shape foam copper 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.
Technical solution of the present invention also comprises with skeleton being the alkaline battery of the electrode manufacturing of foam copper or foam copper alloy.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
The invention will be further described to utilize embodiment below:
Embodiment 1
Nickel electrode
The electrode skeleton of this example is spongy foam copper alloy, and 195mm is wide, and 1.3 ~ 1.8mm is thick, and surface density is 450 ± 50g/m
2, in cadmium metal powder, spongy cadmium powder, cadmium oxide powder, cadmium hydroxide, graphite, acetylene black, the nickel powder one or more are mixed by a certain percentage, be generally cadmium oxide powder 90 ~ 98%, other materials 1 ~ 10% adds about 0.1 ~ 3.0% CMC or MC dry powder.Be mixed into lotion with deionized water, be placed in the vertical or horizontal slurry stove lower slurry groove foam copper skeleton is passed through lotion, and be used for the surface pasting of squeegee cleaning skeleton, filled active material in 10 ~ 100 minutes through 50 ~ 150 ℃ of dryings.Use 30 ~ 300 tons/cm on request
2Power suppress, make cadmium electrode.According to the battery request of different model, cut into the small pieces of different size again, clear up the active material of certain position then, the thin slice of the one or more nickel of spot welding or corronil or nickel plated steel strip is finished electrode and is made as collector again.
Embodiment 2
The alloy hydride electrode
The electrode skeleton of this example is spongy foam copper 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 foam copper alloy fiber space, use 30 ~ 300 tons/square centimeter pressure to be pressed into the nickel metal hydride electrode again.Cut into certain size according to different requirements and finish the monolithic electrode manufacturing.
Also can spongy foam copper alloy, 195mm is wide, and 1.3 ~ 1.8mm is thick, and surface density is 450 ± 50g/m
2, require to cut into certain this according to different models and deposit, putting into mould (according to electrode loading difference, die depth difference) then and spreading rare earth is AB
5Type, rare earth based LAVES phase AB
2At least a in the storage alloy material for hydrogen such as type, titanium system, iron system through suppressing with 30 ~ 300 tons/square centimeter pressure, made the nickel metal hydride electrode.Cut into certain size according to different requirements, the thin slice of the one or more nickel of spot welding or iron-nickel alloy or nickel plated steel strip is finished electrode and is made as collector again.
Claims (6)
1. the manufacture method of an alkaline battery electrode is characterized in that may further comprise the steps:
1) makes foam copper or foam copper 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 copper sulphate or sulfamic acid copper copper salt solution then, or the copper nickel salt solution of nickelous sulfate and copper sulphate or nickel sulfamic acid and sulfamic acid copper, above-mentioned copper salt solution concentration is controlled in the scope of 55-60 grams per liter, the concentration of above-mentioned copper nickel salt solution is controlled at nickel ion 30-60 grams per liter, in the scope that copper ion 15-50g/ rises, after process is electroplated routinely, 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 tons/square centimeter is pressed in the described electrode skeleton, obtain the thick pole plate of 0.1 ~ 2.0mm.
3. manufacture method according to claim 1, it is characterized in that step 2) be the paste active material to be applied be filled in the described electrode skeleton, then after under 50 ~ 150 ℃ of conditions dry 10 ~ 100 minutes, use 30 ~ 300 tons/square centimeter pressure to be pressed into the pole plate of 0.1 ~ 2.0mm again.
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, copper system.
5. an alkaline battery of making as the described manufacture method of one of claim 1-3 is characterized in that described battery terminal skeleton is foam copper or foam copper alloy.
6. alkaline battery that manufacture method as claimed in claim 4 is made, the skeleton that it is characterized in that described battery terminal is foam copper or foam copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01144538A CN1427492A (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01144538A CN1427492A (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
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| CN1427492A true CN1427492A (en) | 2003-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN01144538A Pending CN1427492A (en) | 2001-12-19 | 2001-12-19 | Manufacturing method of alkaline battery electrode and battery produced using said method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933215B (en) * | 2005-09-13 | 2010-05-05 | 比亚迪股份有限公司 | Method for producing alkaline secondary cell positive pole plate |
| CN112687830A (en) * | 2020-12-14 | 2021-04-20 | 双登集团股份有限公司 | Method for manufacturing lithium ion battery pole plate |
-
2001
- 2001-12-19 CN CN01144538A patent/CN1427492A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933215B (en) * | 2005-09-13 | 2010-05-05 | 比亚迪股份有限公司 | Method for producing alkaline secondary cell positive pole plate |
| CN112687830A (en) * | 2020-12-14 | 2021-04-20 | 双登集团股份有限公司 | Method for manufacturing lithium ion battery pole plate |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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