CN104993149A - Pretreatment method for current collector used for spiral lead-acid battery - Google Patents
Pretreatment method for current collector used for spiral lead-acid battery Download PDFInfo
- Publication number
- CN104993149A CN104993149A CN201510300061.4A CN201510300061A CN104993149A CN 104993149 A CN104993149 A CN 104993149A CN 201510300061 A CN201510300061 A CN 201510300061A CN 104993149 A CN104993149 A CN 104993149A
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- China
- Prior art keywords
- acid battery
- lead
- binder
- winding type
- lead foil
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Classifications
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention discloses a pretreatment method for a current collector used for a spiral lead-acid battery. The pretreatment method comprises the following steps: adding a binder into water and adding graphene under continuous stirring; then dispersing a binder mixture with a high-speed dispenser; and filling a spray gun with the dispersed binder mixture and spraying the binder mixture onto two sides of a lead foil. With the method, bonding strength of active substances and the lead foil can be greatly improved, mechanical strength of the active substance can be enhanced, and the problems of easy falling of the active substances from the lead foil after drying of a pole plate and unfirm connection of the active substances are overcome, so the service life of the battery is prolonged; the problem of increase in internal battery resistance caused by direct usage of the binder is avoided by using the method; and the problem of a nonuniform binder layer is overcome in virtue of usage of spray-gun spraying technology.
Description
Technical field
The invention belongs to field of batteries, be specifically related to a kind of preprocess method of winding type lead-acid battery collector.
Background technology
Winding type lead-acid battery internal resistance is low, polar plate area is large, there is the ability to work under superpower high-rate discharge capacity, good partial state of charge, excellent cryogenic property, non-maintaining function can be realized to greatest extent, shock resistance is strong, storage period is long, is widely used in automobile, motorcycle starting, generator starting, hybrid vehicle, the fields such as energy-storage system.
Under same volume, the ultra-thin lead foil (0.01-0.3mm) using lead or lead alloy to make can increase the area of pole plate further as the grid of winding type lead-acid battery, reduce the internal resistance of cell, thus increase battery high-rate discharge capacity and cryogenic property, plumbous use can be reduced simultaneously, alleviate battery weight, improve battery energy density.
But, easily there is the problems such as active material comes off, battery life is short in the winding type lead-acid battery that current use lead foil makes, this is mainly because lead foil has larger difference as collector and grid, the conventional roll that present stage adopts is not suitable for coiled lead-acid battery prepared by lead foil around battery process, traditional handicraft is without the need to carrying out preliminary treatment to grid, directly lead plaster being coated on grid, by solidifying drying, lead plaster being attached on grid preferably.Lead foil has its particularity as collector, and must carry out preliminary treatment to it, its characteristic is as follows:
1. lead foil is very smooth, and after drying particularly under this structure of winding, active material is easy to come off from lead foil;
2. lead foil is very thin, and the active material being coated in surface is also very thin, under this structure of winding, easily forms a large amount of cracks, connect insecure between active material.Therefore, the adhesion problem solving active material and lead foil is the key technology promoting the winding type lead-acid battery performance that lead foil makes.
Summary of the invention
The object of the invention is to provide a kind of preprocess method of winding type lead-acid battery collector, solves that active material easily comes off from lead foil, active material connects unstable problem lead foil.
Technical scheme of the present invention is: a kind of preprocess method of winding type lead-acid battery collector, binding agent is added to the water, Graphene is added under the condition constantly stirred, then high speed dispersor is adopted to carry out dispersion treatment to adhesive mixture, adhesive mixture after dispersion treatment is loaded in spray gun, is sprayed on the two sides of lead foil.
Further, in the present invention, Graphene content is 1%-50%, and binder content is 50%-99%.
Further, in the present invention, the ratio of Graphene and binding agent is 1 ︰ (1-50).
Further, in the present invention, bonding agent is a kind of in sodium carboxymethylcellulose (CMC) or polytetrafluoroethylene (PTFE) or their mixing.
Further, in the present invention, the coating thickness of adhesive mixture is 1-10 μm.
The present invention compared with prior art tool has the following advantages:
Adopt the technical scheme in the application greatly can increase the adhesion strength of active material and lead foil, also can increase the mechanical strength of active material simultaneously, solve active material in the pole plate drying easy problem come off from lead foil afterwards, also solving active material connects insecure, in charge and discharge process, the problem of easy expansion drop, improves the useful life of battery; Adopt the technical program, avoid the problem of the internal resistance of cell increase that direct binding agent brings; Meanwhile, in this programme, owing to have employed spray gun spraying technology, solve the problem that adhesive layer is uneven.
Embodiment
Embodiment 1
Get 1Kg water, 20g PTFE is added under the condition constantly stirred, after PTFE all dissolves, continue to stir, add 20g Graphene, after Graphene has added, adhesive mixture solution high speed dispersor is carried out dispersion treatment, finally the adhesive mixture handled well is loaded in spray gun, spray on the lead foil two sides that 0.05mm is thick the adhesive mixture that the uniform thickness of one deck is 5 μm respectively.Compared with the winding type lead-acid battery do not processed with lead foil, winding type lead-acid battery prepared by the lead foil of this adhesive mixture process, the life-span has very large advantage.
Embodiment 2
Get 1Kg water, 15gPTFE and 5gCMC is added under the condition constantly stirred, after binding agent to be added all dissolves, continue to stir, add 20 Graphenes, after Graphene has added, adhesive mixture solution high speed dispersor is carried out dispersion treatment, then the adhesive mixture handled well is loaded in spray gun, spray on the lead foil two sides that 0.05mm is thick the adhesive mixture that a layer thickness is 10 μm respectively.Compared with the winding type lead-acid battery do not processed with lead foil, on the life-span, there is very large advantage with winding type lead-acid battery prepared by the lead foil processed like this.
The above embodiment only have expressed the embodiment of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection range.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection range of the application.
Claims (5)
1. the preprocess method of a winding type lead-acid battery collector, it is characterized in that, binding agent is added to the water, Graphene is added under the condition constantly stirred, then high speed dispersor is adopted to carry out dispersion treatment to adhesive mixture, adhesive mixture after dispersion treatment is loaded in spray gun, is sprayed on the two sides of lead foil.
2. the preprocess method of a kind of winding type lead-acid battery collector according to claim 1, is characterized in that, Graphene content is 1%-50%, and binder content is 50%-99%.
3. the preprocess method of a kind of winding type lead-acid battery collector according to claim 1, is characterized in that, the ratio of Graphene and binding agent is 1 ︰ (1-50).
4. the preprocess method of a kind of winding type lead-acid battery collector according to claim 1, is characterized in that, bonding agent is a kind of in CMC or PTFE or their mixing.
5. the preprocess method of a kind of winding type lead-acid battery collector according to claim 1, is characterized in that, the coating thickness of adhesive mixture is 1-10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300061.4A CN104993149A (en) | 2015-06-04 | 2015-06-04 | Pretreatment method for current collector used for spiral lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300061.4A CN104993149A (en) | 2015-06-04 | 2015-06-04 | Pretreatment method for current collector used for spiral lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104993149A true CN104993149A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510300061.4A Pending CN104993149A (en) | 2015-06-04 | 2015-06-04 | Pretreatment method for current collector used for spiral lead-acid battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN104993149A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808012A (en) * | 2018-06-11 | 2018-11-13 | 四会市恒星智能科技有限公司 | A method of prevent lead-acid battery electrode plate active material from falling off |
| CN109461975A (en) * | 2018-09-27 | 2019-03-12 | 泉州市凯鹰电源电器有限公司 | A kind of graphene lead carbon power battery and its manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839848U (en) * | 2012-09-19 | 2013-03-27 | 徐平 | Coiled type double-end confluence lead-acid storage battery core |
| CN103811767A (en) * | 2012-11-13 | 2014-05-21 | 海洋王照明科技股份有限公司 | Lead-acid battery positive plate gate as well as preparation method thereof and lead acid battery positive plate |
-
2015
- 2015-06-04 CN CN201510300061.4A patent/CN104993149A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839848U (en) * | 2012-09-19 | 2013-03-27 | 徐平 | Coiled type double-end confluence lead-acid storage battery core |
| CN103811767A (en) * | 2012-11-13 | 2014-05-21 | 海洋王照明科技股份有限公司 | Lead-acid battery positive plate gate as well as preparation method thereof and lead acid battery positive plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808012A (en) * | 2018-06-11 | 2018-11-13 | 四会市恒星智能科技有限公司 | A method of prevent lead-acid battery electrode plate active material from falling off |
| CN109461975A (en) * | 2018-09-27 | 2019-03-12 | 泉州市凯鹰电源电器有限公司 | A kind of graphene lead carbon power battery and its manufacturing method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |