CN101728460B - Solar battery for solar mobile phone battery and preparation method thereof - Google Patents
Solar battery for solar mobile phone battery and preparation method thereof Download PDFInfo
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- CN101728460B CN101728460B CN2009102344686A CN200910234468A CN101728460B CN 101728460 B CN101728460 B CN 101728460B CN 2009102344686 A CN2009102344686 A CN 2009102344686A CN 200910234468 A CN200910234468 A CN 200910234468A CN 101728460 B CN101728460 B CN 101728460B
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a preparation method for a solar battery of a solar mobile phone battery module, comprising the following steps: (1) after an epoxy resin plate is cleaned, adhesives, a glass fiber surfacing mat and a crystalline silicon battery are sequentially laminated on the epoxy resin plate; (2) an extraction electrode of the crystalline silicon battery is welded with a welding point at the bottom surface of the epoxy resin plate, and then a polyvinyl fluoride adhesive tape is pasted on the crystalline silicon battery, corresponding to the position of the extraction electrode; (3) the adhesives and tempering glass are laminated on the crystalline silicon battery; (4) the laminated battery modules are laminated, the temperature is 140-150 DEG C, the atmosphere pressure is 0.5-0.6, and the time is 10-20mins; (5) cooling formation is carried out, so as to obtain the solar battery of the solar mobile phone battery module. The solar battery which has high photoelectric conversion efficiency and good appearance is prepared, and the solar battery is assembled with the lithium battery and the shell, so as to obtain the solar mobile phone battery module.
Description
Technical field
The present invention relates to a kind of solar cell and preparation method thereof, be specifically related to a kind of solar cell that is used for solar mobile phone battery and preparation method thereof.
Background technology
In recent years, the solar mobile phone battery that solar cell and traditional cellular li-ion battery are combined has become the focus of battery of mobile phone research.Solar mobile phone battery has lot of advantages: (1) does not influence the performance of original battery of mobile phone, and promptly original cellular li-ion battery still can be used as the power supply of mobile phone, can adopt existing charger to charge simultaneously yet; (2) wide application, easy to use, it uses and is not subjected to the restriction of region, time, as long as when sunlight or light light are arranged, just can charge, do not need special-purpose charger, when the electricity of battery of mobile phone has used up, only need to shine a little while under light, just can be used for the conversation of short time, this phenomenon is very effective for migrant person's emergent usefulness; (3) compare with former lithium battery, adding cost is less, is well suited for industrialization, is easy to open up and dominate the market, thereby has a good application prospect.
Solar mobile phone battery as precise electronic product, smooth beautiful outward appearance at first will be arranged, therefore, the existing solar cell great majority that are used for solar mobile phone battery are made by amorphous silicon, its preparation method mainly is deposition of transparent conductive film on glass substrate (TCO), successively with plasma reaction deposition p type, i type, three layers of a-Si of n type, then evaporation metal electrode aluminium (Al) gets final product again then.Light is from glass incident, and battery current is drawn from nesa coating and aluminium, and its structure can be expressed as glass/nesa coating/pin/ metal electrode aluminium, in addition, can also make substrate with stainless steel substrates, plastics etc.Yet because the restriction of the material of amorphous silicon own, the photoelectric conversion efficiency of this solar mobile phone battery has only about 6%, has the low significant deficiency of energy output, can not satisfy consumer demand.
At the problems referred to above, having occurred adopting crystalline silicon is the solar cell of substrate preparation, normally adopts process for filling colloid at cementation crystal silicon cell on glass, promptly generally adopts AB glue that crystal silicon chip is adhered to the on glass of bottom, simultaneously silicon chip is wrapped up.The light transmission glue-line shines directly on the silicon chip, and the high conversion efficiency by crystalline silicon solves the low problem of energy output.Simultaneously, because the servo voltage of monolithic crystal silicon chip is generally about 0.4～0.5V, and the charging voltage of cellular li-ion battery is usually about 4V, therefore in order to realize lithium battery is flung, existing crystal silicon solar battery of mobile phone is normally made the crystal silicon cell series connection of plural piece small pieces.
Yet, there is following shortcoming in the preparation method of above-mentioned solar cell: (1) is owing to adopt filling process and use the liquid glue encapsulation silicon chip, thereby the thickness of very difficult control product, make that the solar cell that finally obtains is thicker, the surface heterogeneity is not received the limit all around yet, and the comparison heaviness seems, thereby the size of very difficult control product, precision is lower; Simultaneously in pouring process, also can produce bubble, influence the photoelectric conversion efficiency and the outward appearance of final products; (2) because crystal silicon chip is more, so the solder joint on it is also a lot, and the increase of pad, not only increased the preparation work amount, and the solder joint of One's name is legion need draw all by being coated with the tin copper strips, make that the outward appearance of final products is more ugly, and the bad control of size has influenced it and has applied; Simultaneously, the contact resistance of the solar cell of said structure increases, charging current and then weaken, and charge efficiency reduces; And if had a silicon chip to break or the electric current minimizing, can have influence on the generating efficiency of entire circuit, thereby reliability would be relatively poor; (3) surface of the solar cell that obtains of this preparation method is wrapped up by glue, and its surperficial glue weares and teares easily, and then has influenced the light impingement rate, has reduced photoelectric conversion efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of solar cell that is used for solar mobile phone battery and preparation method thereof, to obtain high conversion rate and to have the solar mobile phone battery of good appearance.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of preparation method who is used for the solar cell of solar mobile phone battery comprises the steps:
(1) with after the epoxy resin board cleaning, stacks gradually adhesive, fiberglass surfacing mat and crystal silicon cell thereon;
(2) extraction electrode of crystal silicon cell and the solder joint of epoxy resin board bottom surface are welded, the polyvinyl fluoride adhesive tape is pasted in the position with respect to extraction electrode on crystal silicon cell then;
(3) stacked adhesive and toughened glass on crystal silicon cell;
(4) above-mentioned stacked good battery component is carried out laminating operation, its temperature is 140～150 ℃, and pressure is 0.5～0.6 atmospheric pressure, and the time is 10～20 minutes;
(5) cooling and shaping promptly obtains the described solar cell that is used for solar mobile phone battery.
This solar cell is assembled by existing method and lithium battery and housing etc., can obtain solar mobile phone battery, can be used as battery of mobile phone.
In the technique scheme, described crystal silicon cell is a monoblock crystal silicon cell sheet.
In the technique scheme, the toughened glass in the described step (3) passes through cleaning step in advance.
In the technique scheme, described adhesive is an ethylene-vinyl acetate copolymer.
Above, described fiberglass surfacing mat has following effect: (1) is owing to all be adhesively fixed through adhesive between toughened glass, crystal silicon cell, fiberglass surfacing mat and the epoxy resin board, before gelling is solid, need all gas is discharged, thereby fiberglass surfacing mat can provide the path of gas discharge; (2) fiberglass surfacing mat and adhesive merge a time-out the anti-buckling strength of product is increased; (3) because the rough surface of fiberglass surfacing mat is rough, in the production process, can prevents effectively when promptly stacked that crystal silicon cell sheet and epoxy resin board are subjected to displacement, and then improve the precision of product.
Described polyvinyl fluoride adhesive tape is a kind of resistant to elevated temperatures adhesive tape, is prior art, covers solder joint in order to be attached to battery sheet main grid line surface, makes solar cell have more visual effect, and is more attractive in appearance.
The bottom surface of described epoxy resin board is provided with solder joint, and the extraction electrode of crystal silicon cell is electrically connected with solder joint, thereby has both played the function of encapsulation backboard insulation, plays the function of the lead-in wire that confluxes again; In addition, this structure has also avoided being coated with the use of tin copper strips, has avoided the problem of the bad control of size of whole assembly profile.
The present invention asks for protection the solar cell that is used for solar mobile phone battery that is obtained by above-mentioned preparation method simultaneously.Described solar cell comprises toughened glass, crystal silicon cell, fiberglass surfacing mat and epoxy resin board from top to bottom successively, all is adhesively fixed through adhesive between each layer; Described crystal silicon cell is a monoblock crystal silicon cell sheet, and its surperficial both sides are provided with extraction electrode, and the position in the bottom surface of described epoxy resin board corresponding to extraction electrode is provided with solder joint, and extraction electrode is electrically connected with solder joint; Position with respect to extraction electrode on described crystal silicon cell is provided with the polyvinyl fluoride adhesive tape, and the polyvinyl fluoride adhesive tape is between described toughened glass and crystal silicon cell.
Because the employing of technique scheme, compared with prior art, the present invention has following advantage:
1. the present invention adopts laminating technology, and 4 layers of structure of employing toughened glass-crystal silicon cell-fiberglass surfacing mat-epoxy resin board, made and had the higher photoelectric conversion efficiency and the solar cell of good appearance, assemble by conventional method and lithium battery and housing etc., can obtain solar mobile phone battery.
2. the present invention is provided with fiberglass surfacing mat below crystal silicon cell, not only discharge passage is provided for the gas in the solid process of gelling, and because the rough surface of fiberglass surfacing mat is rough, can prevent effectively that in the production process crystal silicon cell and epoxy resin board are subjected to displacement, and then improve the precision of product; Fiberglass surfacing mat and adhesive merge the anti-buckling strength that a time-out has also increased product simultaneously.
3. bottom of the present invention adopts epoxy resin board, its bottom is provided with solder joint, the extraction electrode of crystal silicon cell can be electrically connected with solder joint, both played the function of encapsulation backboard insulation, play the function of the lead-in wire that confluxes again, avoid being coated with the use of tin copper strips, thereby avoided the problem of the bad control of size of entire cell profile.
4. because the present invention adopts a monoblock crystal silicon cell sheet, in its surperficial both sides extraction electrode is set, avoided polylith crystal silicon chip cascaded structure problem, the problem includes: the problem that solder joint is many, the part silicon chip breaks causes has good reliability, the minimizing of silicon chip solder joint has simultaneously also significantly reduced workload.
5. because the present invention position with respect to extraction electrode on crystal silicon cell is provided with the polyvinyl fluoride adhesive tape, is attached to battery sheet main grid line surface and covers solder joint, make solar cell have more visual effect, more attractive in appearance.
6. preparation method of the present invention is simple, and cost is lower, and can control the size and the precision of solar battery product, has a good application prospect.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one.
Wherein: 1, toughened glass; 2, crystal silicon cell; 3, fiberglass surfacing mat; 4, epoxy resin board; 5, adhesive.
Embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment one
Shown in accompanying drawing 1, a kind of preparation method who is used for the solar cell of solar mobile phone battery comprises the steps:
(1) with after the epoxy resin board cleaning, stacks gradually adhesive, fiberglass surfacing mat and crystal silicon cell thereon;
(2) extraction electrode of crystal silicon cell and the solder joint of epoxy resin board bottom surface are welded, the polyvinyl fluoride adhesive tape is pasted in the position with respect to extraction electrode on crystal silicon cell then;
(3) stacked adhesive and toughened glass on crystal silicon cell;
(4) above-mentioned stacked good battery component is carried out laminating operation, its temperature is 140～150 ℃, and pressure is 0.5～0.6 atmospheric pressure, and the time is 10～20 minutes;
(5) cooling and shaping promptly obtains the described solar cell that is used for solar mobile phone battery.
In the technique scheme, described crystal silicon cell is a monoblock crystal silicon cell sheet.Toughened glass in the described step (3) passes through cleaning step in advance.Described adhesive is an ethylene-vinyl acetate copolymer.
The solar cell that is used for solar mobile phone battery that obtains by above-mentioned preparation method, referring to shown in Figure 1, comprise toughened glass 1, crystal silicon cell 2, fiberglass surfacing mat 3 and epoxy resin board 4 from top to bottom successively, all be adhesively fixed between each layer through adhesive 5; Described crystal silicon cell is a monoblock crystal silicon cell sheet, and its surperficial both sides are provided with extraction electrode, and the position in the bottom surface of described epoxy resin board corresponding to extraction electrode is provided with solder joint, and extraction electrode is electrically connected with solder joint; Position with respect to extraction electrode on described crystal silicon cell is provided with the polyvinyl fluoride adhesive tape, and the polyvinyl fluoride adhesive tape is between described toughened glass and crystal silicon cell.
This solar cell is assembled by existing method and lithium battery and housing etc., can obtain solar mobile phone battery, can be used as battery of mobile phone.
Claims (5)
1. a preparation method who is used for the solar cell of solar mobile phone battery is characterized in that, comprises the steps:
(1) with after the epoxy resin board cleaning, stacks gradually adhesive, fiberglass surfacing mat and crystal silicon cell thereon;
(2) extraction electrode of crystal silicon cell and the solder joint of epoxy resin board bottom surface are welded, the polyvinyl fluoride adhesive tape is pasted in the position with respect to extraction electrode on crystal silicon cell then;
(3) stacked adhesive and toughened glass on crystal silicon cell;
(4) above-mentioned stacked good battery component is carried out laminating operation, its temperature is 140～150 ℃, and pressure is 0.5～0.6 atmospheric pressure, and the time is 10～20 minutes;
(5) cooling and shaping promptly obtains the described solar cell that is used for solar mobile phone battery.
2. the preparation method who is used for the solar cell of solar mobile phone battery according to claim 1 is characterized in that: described crystal silicon cell is a monoblock crystal silicon cell sheet.
3. the preparation method who is used for the solar cell of solar mobile phone battery according to claim 1 is characterized in that: the toughened glass in the described step (3) passes through cleaning step in advance.
4. the preparation method who is used for the solar cell of solar mobile phone battery according to claim 1 is characterized in that: described adhesive is an ethylene-vinyl acetate copolymer.
5. the solar cell that is used for solar mobile phone battery that preparation method according to claim 1 obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102344686A CN101728460B (en) | 2009-11-18 | 2009-11-18 | Solar battery for solar mobile phone battery and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102344686A CN101728460B (en) | 2009-11-18 | 2009-11-18 | Solar battery for solar mobile phone battery and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101728460A CN101728460A (en) | 2010-06-09 |
| CN101728460B true CN101728460B (en) | 2011-11-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101976694A (en) * | 2010-09-27 | 2011-02-16 | 新乡市力特光源有限公司 | Photovoltaic cell component |
| CN102544193B (en) * | 2010-12-21 | 2015-11-25 | 沙嫣 | The installation method of solar module |
| CN102569455A (en) * | 2010-12-31 | 2012-07-11 | 沙嫣 | Solar battery assembly provided with high-molecular polymer glass fiber cloth |
| CN104009126A (en) * | 2014-06-12 | 2014-08-27 | 王东 | Type setting and fixing method for flexible solar cell |
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Granted publication date: 20111109 Termination date: 20181118 |