CN103579576A - Novel battery negative electrode as well as preparation and application thereof - Google Patents
Novel battery negative electrode as well as preparation and application thereof Download PDFInfo
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- CN103579576A CN103579576A CN201310482441.5A CN201310482441A CN103579576A CN 103579576 A CN103579576 A CN 103579576A CN 201310482441 A CN201310482441 A CN 201310482441A CN 103579576 A CN103579576 A CN 103579576A
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- alloy powder
- battery negative
- novel battery
- negative pole
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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
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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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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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a novel battery negative electrode. The novel battery negative electrode is characterized in that the novel battery negative electrode is of a composite layer structure, wherein a base material steel belt layer is arranged at the middle of the composite layer structure, alloy powder layers are respectively arranged at two side faces of the base material steel belt layer, and a powder scraping part is arranged on the alloy powder layer on either side of the base material steel belt layer. A preparation method of the novel battery negative electrode comprises the following steps of (1) preparing a negative electrode through sizing and drying; (2) scraping off alloy powder on the alloy powder layer on either side of the base material steel belt layer according to the preset area and thickness, so as to form the powder scraping part; (3) cutting according to the preset size and shape. Application of the novel battery negative electrode comprises the following steps of winding a positive electrode, diaphragm paper and the novel battery negative electrode according to requirements, arranging the alloy powder layers, provided with the powder scrapping parts, of the novel battery negative electrode at the outermost circle, and enabling the powder scrapping parts to be in direct contact with a battery shell after the novel battery negative electrode is put into the battery shell. According to the technique, the contact internal resistance of the battery is reduced; the discharging efficiency of the battery is increased; the use ratio of the alloy powder of the battery is improved; the internal space of the battery is increased; the production cost of the battery is lowered.
Description
Technical field
The present invention relates to electrode technology, particularly a kind of novel battery negative pole, preparation method and application thereof.
Background technology
Negative pole is one of critical piece of battery, is generally three-decker.Traditional preparation method is also varied, yet all exists such or such deficiency.1) sintered type that nickel strap or steel band are base material: complex process, cost is high, seriously polluted; 2) dry method that copper mesh or steel band are base material is pressed eliminant: lack of homogeneity, and production harvest rate is low, and production efficiency is low, and battery short circuit rate is high; 3) the wet method pull pulp type that nickel screen is base material: cost is high, and battery low-voltage is many; 4) the wet method pull pulp type that steel band is base material: internal resistance is higher, alloyed powder utilance is lower.In addition, traditional negative pole application ubiquity that the contact internal resistance of battery is high, the large electric current of battery puts that point efficiency is low, battery alloy powder utilance is low, inside battery insufficient space, battery production high in cost of production is not enough.
Summary of the invention
Above-mentioned deficiency for prior art, the object of the invention is to, and a kind of novel battery negative pole, preparation method and application thereof are provided.
The technical scheme that the present invention adopted is for achieving the above object: a kind of novel battery negative pole, it is characterized in that: it is a lamination layer structure, its middle part is base material steel belt layer, on the two sides of this base material steel belt layer, be respectively equipped with an alloy powder layer, and on the alloy powder layer of either side, be also provided with one and scrape powder portion therein.
Describedly scraping the outside that powder portion is positioned at alloy powder layer, is scrape off a part and obtain the powder of described alloy powder layer is thick, and this area of scraping powder portion accounts for is scraped 1/10th to 1/2nd of alloy powder layer area.
The thickness of described alloy powder layer is 0.05-0.45mm; The described residual bisque that is provided with uniform thickness in powder portion region of scraping, the thickness of this residual bisque is: 0.001-0.05mm; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm.The thickness of described base material steel belt layer is: 0.035-0.110mm.
A preparation method who prepares described novel battery negative pole, is characterized in that, it comprises the following steps:
1) prepare cell negative plate: on the two sides of base material steel belt layer that are positioned at middle part, starching respectively, oven dry, make it respectively form an alloy powder layer; In described base material steel belt layer bilateral symmetry, alloy powder layer is set; The thickness of described base material steel belt layer is 0.035-0.110mm; The thickness of described alloy powder layer is 0.05-0.45mm.
2) on the alloy powder layer of the either side of base material steel belt layer, scrape off the alloyed powder of setting area and thickness, the residual bisque that residual lower thickness is 0.001-0.05mm, forms the powder portion of scraping; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm; The described powder portion of scraping adopts and to scrape powder machine and implement to scrape powder operation; The described powder portion of scraping is positioned at the outside of being scraped alloy powder layer, and this area of scraping powder portion accounts for is scraped 1/10th to 1/2nd of alloy powder layer area, and the described powder portion of scraping of being scraped alloy powder layer remains residual powder thickness 0.001-0.05mm.
3), by predefined size, shape cutting, cut out the novel battery negative pole needing.
3.1) by puncher, by desired location, make location hole;
3.2) by location hole, located, by pre-set size and dimension, cut, cut out the novel battery negative pole needing.Location starting point using described location hole as infrared ray position indicator controller, by pre-set dimension and shape need, control step motor is sent and is required size and dimension anticathode plate to cut, and obtains novel battery negative pole.
The application of described novel battery negative pole in battery manufacture, is characterized in that, it comprises the steps: respectively positive pole, diaphragm paper, novel battery negative pole to be reeled on request preparation battery core; Described novel battery negative pole is provided with to the alloy powder layer of scraping powder portion one side, is placed in battery core outmost turns, put into after battery case, make to scrape powder portion and directly contact with battery case.
The invention has the advantages that: reduce the contact internal resistance of battery; Improve the large electric current of battery and put point efficiency; Improve battery alloy powder utilance; Increase inside battery space; Reduce battery production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment novel battery negative pole;
Fig. 2 is the base material of cathode bar schematic diagram of the present embodiment;
Fig. 3 is that the base material of cathode bar of Fig. 2 is scraped the schematic diagram after powder, punching;
Fig. 4 is the coiling application schematic diagram of the present embodiment novel battery negative pole;
In figure: 1. base material steel belt layer; 2. alloy powder layer; 3. scrape powder portion; 4. location hole.
Embodiment
Referring to Fig. 1, a kind of novel battery negative pole that the present embodiment provides, it is a lamination layer structure, its middle part is base material steel belt layer 1, on the two sides of this base material steel belt layer, be respectively equipped with an alloy powder layer 2, and therein on the alloy powder layer 2 of either side, be also provided with one and scrape powder portion 3.
Describedly scraping the outside that powder portion 3 is positioned at alloy powder layer 2, is scrape off a part and obtain the powder of described alloy powder layer 2 is thick, and this area of scraping powder portion 3 accounts for is scraped 1/10th to 1/2nd of alloy powder layer area.
The thickness of described alloy powder layer 2 is 0.05-0.45mm; The described residual bisque that is provided with uniform thickness in powder portion 3 regions of scraping, the thickness of this residual bisque is: 0.001-0.05mm; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm.The thickness of described base material steel belt layer 1 is: 0.035-0.110mm.
A preparation method who prepares described novel battery negative pole, it comprises the following steps:
1) prepare cell negative plate: on the two sides of base material steel belt layer 1 that are positioned at middle part, starching respectively, oven dry, make it respectively form an alloy powder layer 2; In described base material steel belt layer 1 bilateral symmetry, alloy powder layer 2 is set; The thickness of described base material steel belt layer 1 is 0.035-0.110mm; The thickness of described alloy powder layer 2 is 0.05-0.45mm.
2) on the alloy powder layer of the either side of base material steel belt layer 1, scrape off the alloyed powder of setting area and thickness, the residual bisque that residual lower thickness is 0.001-0.05mm, forms the powder portion 2 of scraping; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm; The described powder portion of scraping adopts and to scrape powder machine and implement to scrape powder operation; The described powder portion of scraping is positioned at the outside of being scraped alloy powder layer, and this area of scraping powder portion accounts for is scraped 1/10th to 1/2nd of alloy powder layer area, and the described powder portion of scraping of being scraped alloy powder layer remains residual powder thickness 0.001-0.05mm.
3), by predefined size, shape cutting, cut out the novel battery negative pole needing.
3.1) by puncher, by desired location, make location hole 4;
3.2) by location hole 4, located, by pre-set size and dimension, cut, cut out the novel battery negative pole needing.Location starting point using described location hole 4 as infrared ray position indicator controller, by pre-set dimension and shape need, control step motor is sent and is required size and dimension anticathode plate to cut, and obtains novel battery negative pole.
The application of described novel battery negative pole in battery manufacture, it comprises the steps: respectively positive pole, diaphragm paper, novel battery negative pole to be reeled on request preparation battery core; Described novel battery negative pole is provided with to the alloy powder layer of scraping powder portion 3 one sides, is placed in battery core outmost turns, put into after battery case, make to scrape powder portion and directly contact with battery case.
Referring to 2,3, adopt this area routine techniques to prepare negative pole by starching, oven dry, be generally rectangular base material of cathode.Scrape powder processing formation and scrape after powder portion, locate by punching, cut.1-2mm position, the reserved edge of distance is located at described location hole 4 Kong centers, is the diameter hole that is 2mm.
Referring to Fig. 4, a kind of application of described novel battery negative pole, reels positive pole, diaphragm paper, novel battery negative pole on request, novel battery negative pole be provided with scrape powder portion alloy powder layer in battery core outmost turns, put into after battery case, scrape powder portion and directly contact with battery case.
The novel battery negative pole that the present embodiment provides, reduces the contact internal resistance of battery; Improve the large electric current of battery and put point efficiency; Improve battery alloy powder utilance; Increase inside battery space; Reduce battery production cost.
The present invention is not limited to above-mentioned execution mode, adopts step and the structure identical or approximate with the above embodiment of the present invention, and other a kind of novel battery negative poles, preparation method and the application thereof that obtain, all within protection scope of the present invention.
Claims (10)
1. a novel battery negative pole, is characterized in that: it is a lamination layer structure, and its middle part is base material steel belt layer, is respectively equipped with an alloy powder layer on the two sides of this base material steel belt layer, and therein on the alloy powder layer of either side, is also provided with one and scrapes powder portion.
2. novel battery negative pole according to claim 1, it is characterized in that: described in scrape the outside that powder portion is positioned at alloy powder layer, be scrape off a part and obtain the powder of described alloy powder layer is thick, this area of scraping powder portion accounts for is scraped 1/10th to 1/2nd of alloy powder layer area.
3. novel battery negative pole according to claim 2, is characterized in that: the thickness of described alloy powder layer is 0.05-0.45mm; The described residual bisque that is provided with uniform thickness in powder portion region of scraping, the thickness of this residual bisque is: 0.001-0.05mm; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm.
4. novel battery negative pole according to claim 1, is characterized in that: the thickness of described base material steel belt layer is: 0.035-0.110mm.
5. a preparation method who prepares the described novel battery negative pole of one of claim 1 to 4, is characterized in that, it comprises the following steps:
1) prepare cell negative plate: on the two sides of base material steel belt layer that are positioned at middle part, starching respectively, oven dry, make it respectively form an alloy powder layer;
2) on the alloy powder layer of the either side of base material steel belt layer, scrape off the alloyed powder of setting area and thickness, the residual bisque that residual lower thickness is 0.001-0.05mm, forms the powder portion of scraping; In the described powder portion of scraping, from the edge of being scraped alloy powder layer, leave length in reserve, this length in reserve is 1-40mm;
3), by predefined size, shape cutting, cut out the novel battery negative pole needing.
6. novel battery negative pole preparation method according to claim 5, is characterized in that, described step 3) specifically comprises the following steps:
3.1) by puncher, by desired location, make location hole;
3.2) by location hole, located, by pre-set size and dimension, cut, cut out the novel battery negative pole needing.
7. novel battery negative pole preparation method according to claim 6, it is characterized in that, described step 3.2) also comprise following content: the location starting point using described location hole as infrared ray position indicator controller, by pre-set dimension and shape need, control step motor is sent and is required size and dimension anticathode plate to cut, and obtains novel battery negative pole.
8. novel battery negative pole preparation method according to claim 5, is characterized in that, described step 1) specifically comprises following content: in described base material steel belt layer bilateral symmetry, alloy powder layer is set; The thickness of described base material steel belt layer is 0.035-0.110mm; The thickness of described alloy powder layer is 0.05-0.45mm.
9. novel battery negative pole preparation method according to claim 5, is characterized in that described step 2) comprise following content: described in scrape powder portion and adopt and scrape powder machine and implement to scrape powder operation; The described powder portion of scraping is positioned at the outside of being scraped alloy powder layer, and this area of scraping powder portion accounts for is scraped 1/10th to 1/2nd of alloy powder layer area, and the described powder portion of scraping of being scraped alloy powder layer remains residual powder thickness 0.001-0.05mm.
10. the application of the described novel battery negative pole of one of claim 1 to 4 in battery manufacture, is characterized in that, it comprises the steps: respectively positive pole, diaphragm paper, novel battery negative pole to be reeled on request preparation battery core; Described novel battery negative pole is provided with to the alloy powder layer of scraping powder portion one side, is placed in battery core outmost turns, put into after battery case, make to scrape powder portion and directly contact with battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482441.5A CN103579576B (en) | 2013-10-15 | 2013-10-15 | A kind of novel battery negative pole, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310482441.5A CN103579576B (en) | 2013-10-15 | 2013-10-15 | A kind of novel battery negative pole, preparation method and application thereof |
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| CN103579576A true CN103579576A (en) | 2014-02-12 |
| CN103579576B CN103579576B (en) | 2015-09-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274955A (en) * | 1999-05-19 | 2000-11-29 | 日本电气株式会社 | Non-aqueous electrolyte secondary cell |
| JP2008204920A (en) * | 2007-02-22 | 2008-09-04 | Sony Corp | Nonaqueous electrolyte secondary battery, and manufacturing method of nonaqueous electrolyte secondary battery |
| CN101958412A (en) * | 2009-07-15 | 2011-01-26 | 深圳市量能科技有限公司 | Process for manufacturing wound battery cathode plate |
| CN101981747A (en) * | 2008-04-17 | 2011-02-23 | 株式会社Lg化学 | Battery having enhanced electrical insulation capability |
| JP2012212600A (en) * | 2011-03-31 | 2012-11-01 | Tdk Corp | Bipolar type secondary battery |
-
2013
- 2013-10-15 CN CN201310482441.5A patent/CN103579576B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274955A (en) * | 1999-05-19 | 2000-11-29 | 日本电气株式会社 | Non-aqueous electrolyte secondary cell |
| JP2008204920A (en) * | 2007-02-22 | 2008-09-04 | Sony Corp | Nonaqueous electrolyte secondary battery, and manufacturing method of nonaqueous electrolyte secondary battery |
| CN101981747A (en) * | 2008-04-17 | 2011-02-23 | 株式会社Lg化学 | Battery having enhanced electrical insulation capability |
| CN101958412A (en) * | 2009-07-15 | 2011-01-26 | 深圳市量能科技有限公司 | Process for manufacturing wound battery cathode plate |
| JP2012212600A (en) * | 2011-03-31 | 2012-11-01 | Tdk Corp | Bipolar type secondary battery |
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| CN103579576B (en) | 2015-09-09 |
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