CN107564601A - A kind of backplate slurry for two-sided PERC solar cells and preparation method thereof - Google Patents
A kind of backplate slurry for two-sided PERC solar cells and preparation method thereof Download PDFInfo
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- CN107564601A CN107564601A CN201710752268.4A CN201710752268A CN107564601A CN 107564601 A CN107564601 A CN 107564601A CN 201710752268 A CN201710752268 A CN 201710752268A CN 107564601 A CN107564601 A CN 107564601A
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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
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Abstract
The invention discloses a kind of backplate slurry for two-sided PERC solar cells, it is made up of the raw material of following mass parts：Silver powder 50~70, inorganic bond 0.5~3, organic bond 20~40, organic additive 0.05~0.2, inorganic additive 0.5~2.0, epoxy resin 0.1~3.The backplate slurry is printed on two-sided PERC back of solar cell passivating film, the slurry does not burn backside passivation film after drying sintering, overcomes the shortcomings that traditional backplate slurry is damaged to backside passivation film so as to cause two-sided PERC solar cells electrical property to decline.The invention also discloses the preparation method of the above-mentioned backplate slurry for two-sided PERC solar cells.
Description
Technical field
The invention belongs to rear surface of solar cell electrode slurry technical field, and in particular to one kind is used for two-sided PERC too
The backplate slurry in positive electricity pond and preparation method thereof.
Background technology
Solar energy be with it not to the utmost, the inexhaustible energy, if obtaining electric power from solar energy, will promote the well-being of mankind, people
Solar energy solar cell is manufactured by photovoltaic effect and carries out light-to-current inversion to realize.Have the characteristics that：1. without exhausted dangerous；②
It is nuisanceless；3. not by the territory restriction of resource distribution；4. it can be generated electricity nearby at electricity consumption；5. energy quality is high.
The tow sides for being mainly characterized by (1) battery of PERC batteries all deposit passivating film；(2) aluminium paste of back surface field is then direct
It is covered in backside passivation film and forms localized contact with silicon substrate.According to the design feature of PERC batteries, battery needs two-sided blunt
Change and rear side local contact, so as to which surface recombination be greatly reduced, improve cell conversion efficiency.Passivation on double surfaces then requires battery two sides
All need to plate deielectric-coating, rear side local contact then needs the back side to open film, therefore PERC battery process flows are：(1) alkali making herbs into wool；(2)
POCl3Diffusion；(3) wet method back-etching；(4) passivation on double surfaces film；(5) back side dielectric film perforate；(6) metallize.It is two-sided
PERC solar cells are a kind of special construction of PERC solar cells, the thin grid line pattern of back up aluminium of battery, and battery
Two faces can receive illumination and generate electricity.
Traditional backplate slurry is printed on two-sided PERC back of solar cell passivating film, and drying sintering disposed slurry holds
Backside passivation film is easily burnt, due to destroying backside passivation film so that two-sided PERC solar cells electrical property can be caused to decline.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of backplate slurry for two-sided PERC solar cells,
The backplate slurry is printed on two-sided PERC back of solar cell passivating film, the slurry does not burn the back of the body after drying sintering
Face passivating film, overcome traditional backplate slurry and backside passivation film is damaged so as to cause two-sided PERC solar cells electricity
The shortcomings that hydraulic performance decline.
The technical problems to be solved by the invention, which also reside in, provides the above-mentioned backplate for two-sided PERC solar cells
The preparation method of slurry, the preparation method concise in technology, cost are low.
First technical problem to be solved by this invention is achieved through the following technical solutions：One kind is used for two-sided
The backplate slurry of PERC solar cells, is made up of the raw material of following mass parts：Silver powder 50~70, inorganic bond 0.5~
3, organic bond 20~40, organic additive 0.05~0.2, inorganic additive 0.5~2.0, epoxy resin 0.1~3.
Further, the proportion by weight of each raw material is preferably：Silver powder 55~65, inorganic bond 1.0~1.5 are organic
Adhesive 25~30, organic additive 0.08~0.12, inorganic additive 0.8~1.5, epoxy resin 0.5~2.
In each raw material of the above-mentioned backplate slurry for two-sided PERC solar cells：
Silver powder of the present invention is preferably in spherical silver powder, flake silver powder, dendroid silver powder and irregular silver powder
It is one or more of.
More preferably, the mixture of the preferably spherical silver powder of silver powder of the present invention and flake silver powder, the ball shape silver powder
D50 be preferably 0.5~3.0 μm, more preferably 1.0~1.5 μm, the D50 of described flake silver powder is preferably 10~200nm, more
Good is 20~100nm.
Inorganic bond of the present invention includes frit, and described frit is lead-less glasses material or flint glass
Material.
Preferably, described lead-less glasses material includes the component of following weight/mass percentage composition：Bi2O360~80%, SiO2
1~20%, Al2O33~15% and B2O31~8%, it has the softening point temperature in the range of 600~800 DEG C.
Preferably, described flint glass material includes the component of following weight/mass percentage composition：PbO 50~70%, SiO2
15~25%, CuO 1~15% and MnO25~15%, it has the softening point temperature in the range of 420~560 DEG C.
Frit functions as a kind of inorganic bond medium so that and various inorganic particles are sintered together, and closely
Silicon chip surface is incorporated in, this is the committed step for influenceing electrode adhesion.
Organic bond of the present invention is made up of the raw material of following weight/mass percentage composition：Ethyl cellulose 10~
20%th, butyl carbitol acetate 10~15%, terpinol 35~65%, butyl carbitol 10~40%, ATBC 5
~15%, hexadecanol 1~5%.
Organic bond of the present invention is prepared by the following method acquisition：Ethyl cellulose is added to organic solvent
In butyl carbitol acetate, terpinol, butyl carbitol, ATBC and hexadecanol, 100 are heated to using microwave~
120 DEG C, after heating stirring ethyl cellulose is completely dissolved, used after being cooled to room temperature.
The effect of organic bond is that good applying performance is provided to silver paste, including the Investigation of stabilized dispersion of nano of inorganic particle,
Appropriate viscosity and thixotropy, backside passivation film and inorganic particle to silicon chip provide appropriate wetability and with good
Drying Rates and good sintering character.
Inorganic additive of the present invention is preferably Fe2O3、Fe3O4、Al2O3、Bi2O3、PbO、Co2O3、 Co3O4、NiO、
Sb2O5、ZnO、CuO、Cu2O、MnO2Or the metallic compound of listed metal oxide can be produced in sintering process.
Inorganic additive can be with the adhesive force of strengthening slurry.
Organic additive of the present invention is preferably one in the conventional wetting dispersing agent in market, thickener and levelling agent
Kind is several.
The addition of inorganic additive and organic additive, the overall performance of backplate slurry can be improved.
Second technical problem of the present invention is achieved by the following technical solution：It is above-mentioned to be used for two-sided PERC too
The preparation method of the backplate slurry in positive electricity pond, comprises the following steps：
(1) inorganic bond is prepared：Choose inorganic bond each raw material, dried after mixing, regulation temperature be 1150~
1250 DEG C of 4~10h of melting, are dried after deionization water quenching, then are handled through ball milling, drying and sieving, obtain inorganic bond；
(2) organic bond is prepared：After each raw material of organic bond is mixed, 80~120 are heated to using microwave
DEG C, heat while stirring to each raw material and obtain organic bond after being completely dissolved；
(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin, machine are chosen
Again through pre-dispersed processing after tool mixing, it is stand-by to obtain pastel；
(4) after pastel progress pine being rolled and tightly rolled, that is, the backplate slurry for two-sided PERC solar cells is obtained.
The application method of the backplate slurry for two-sided PERC solar cells in the present invention, comprises the following steps：
(1) double-side solar cell PERC silicon chips are chosen, there is antireflection layer and its back side on the front of the PERC silicon chips
The upper passivation layer with perforation；
(2) back side that above-mentioned backplate slurry is printed on the PERC silicon chips is chosen, on the passivation layer of the perforation
Form back electrode pattern；
(3) backplate is sintered, temperature during sintering is 750~850 DEG C, dries formation after sintering again
Backplate slurry does not burn the backside passivation layer.
Wherein sinter and preferably carried out with common sintering, common sintering together with the back side aluminium paste for being printed to PERC silicon chips and
Front metal slurry is together to form aluminium backplate and front metal electrode.
Compared with prior art, the present invention has advantages below：Backplate slurry in the present invention is printed on two-sided
On back of solar cell passivating film, after drying sintering, the slurry does not burn backside passivation film, overcomes traditional backplate slurry
The shortcomings that material is damaged to backside passivation film so as to cause two-sided PERC solar cells electrical property to decline.
Embodiment
The present invention is given specific description in each of the embodiments described below.These embodiments be all it is illustrative, not
The limitation present invention in any way.It will be understood by those skilled in the art that without departing from the spirit and scope of the invention
The details and form of technical solution of the present invention can be modified or replaced, but these modifications and replacement each fall within the present invention's
In protection domain.
Embodiment 1
The backplate slurry for two-sided PERC solar cells that the present embodiment provides, by the raw material system of following mass parts
Into：Silver powder 50, inorganic bond 3, organic bond 20, organic additive 0.2, inorganic additive 0.5, epoxy resin 3.
Wherein silver powder is the mixture of ball shape silver powder and flake silver powder, and the D50 of ball shape silver powder is 0.5~3.0 μm, sheet silver
The D50 of powder is 10~200nm.
Inorganic bond is lead-less glasses material, and it includes the component of following weight/mass percentage composition：Bi2O367%th, SiO2
20%th, Al2O36%th, B2O37%, it has the softening point temperature in the range of 600~800 DEG C.
Organic bond is made up of the raw material of following weight/mass percentage composition：Tao Shi ethyl celluloses STD-200 10%, fourth
Base carbitol acetate 12%, terpinol 55%, butyl carbitol 15%, ATBC 5%, hexadecanol 3%.
Organic bond is prepared by the following method acquisition：Ethyl cellulose is added to butyl carbitol acetate, pine
In oleyl alcohol, butyl carbitol, ATBC and hexadecanol, 100~120 DEG C are heated to using microwave, is made after heating stirring
Obtain ethyl cellulose to be completely dissolved, used after being cooled to room temperature.
Inorganic additive is NiO.
Organic additive is the wetting dispersing agent that market is commonly used.
The preparation method of the back side silver paste of the PERC crystal silicon solar energy batteries, comprises the following steps：
(1) inorganic bond is prepared：Selection prepares each raw material of inorganic bond, in 120 DEG C of vacuum tank baking 1h after mixing,
Regulation temperature is 1200 DEG C of melting 9h, is dried after deionization water quenching, then through ball milling 72h, is sieved after drying, obtain particle diameter 1~5
Inorganic bond between μm；
(2) organic bond is prepared：Butyl carbitol acetate, terpinol, butyl are added from Tao Shi ethyl celluloses
Carbitol, ATBC, hexadecanol are heated to 100~120 DEG C, after heating stirring ethyl cellulose are completely dissolved,
Used after being cooled to room temperature；
(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin, machine are chosen
Again through pre-dispersed processing after tool mixing, it is stand-by to obtain pastel；
(4) pre-dispersed pastel is rolled one time with three-high mill pine, then progressively tightly rolling 3 times, finally tightly roll 2 times and obtain
Back side silver paste.
The application method of the back side silver paste of the PERC crystal silicon solar energy batteries, comprises the following steps：
(1) crystal silicon chip is chosen, is had on the front of the crystal silicon chip blunt with what is perforated on antireflection layer and its back side
Change layer；
(2) back side that back side silver paste prepared above is printed on crystal silicon chip is chosen, silver is formed on the passivation layer of perforation
Back electrode；
(3) silver-colored back electrode is sintered, temperature during sintering is 750~850 DEG C, and the silver paste formed after sintering is not
Burn backside passivation layer.
Embodiment 2
The backplate slurry for two-sided PERC solar cells that the present embodiment provides, by the raw material system of following mass parts
Into：Silver powder 70, inorganic bond 0.5, organic bond 40, organic additive 0.05, inorganic additive 2.0, epoxy resin
0.1。
Silver powder is spherical silver powder, and its D50 is 0.5~3.0 μm.
Inorganic bond is flint glass material, and the flint glass material includes the component of following weight/mass percentage composition： PbO
50%th, SiO225%th, CuO 10% and MnO215%, it has the softening point temperature in the range of 420~560 DEG C.
Organic bond is made up of the raw material of following weight/mass percentage composition：Ethyl cellulose 15%, butyl carbitol acetic acid
Ester 10%, terpinol 35%, butyl carbitol 30%, ATBC 8%, hexadecanol 2%.
Organic bond is prepared by the following method acquisition：Ethyl cellulose is added to butyl carbitol acetate, pine
In oleyl alcohol, butyl carbitol, ATBC and hexadecanol, 100~120 DEG C are heated to using microwave, is made after heating stirring
Obtain ethyl cellulose to be completely dissolved, used after being cooled to room temperature.
Inorganic additive is Fe2O3。
Organic additive is the thickener that market is commonly used.
This is used for the preparation method of the backplate slurry of two-sided PERC solar cells, comprises the following steps：
(1) inorganic bond is prepared：Selection prepares each raw material of inorganic bond, in 125 DEG C of bakings of vacuum tank after mixing
1h, regulation temperature are 1150 DEG C of melting 5h, are dried after deionization water quenching, then through ball milling 48h, sieved after drying, obtain particle diameter 1
Frit between~2 μm；
(2) organic bond is prepared：Butyl carbitol acetate, terpinol, butyl are added from Tao Shi ethyl celluloses
Carbitol, ATBC, hexadecanol are heated to 100~120 DEG C, after heating stirring ethyl cellulose are completely dissolved,
Used after being cooled to room temperature；
(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin, machine are chosen
Again through pre-dispersed processing after tool mixing, it is stand-by to obtain pastel；
(4) pre-dispersed pastel is rolled one time with three-high mill pine, then progressively tightly rolling 3 times, finally tightly roll 2 times and obtain
Carry on the back silver electrode paste.
The application method of the backplate slurry is the same as embodiment 1.
Embodiment 3
The backplate slurry for two-sided PERC solar cells that the present embodiment provides, by the raw material system of following mass parts
Into：Silver powder 55, inorganic bond 1.5, organic bond 25, organic additive 0.12, inorganic additive 0.8, epoxy resin 2.
Silver powder is flake silver powder.The D50 of the flake silver powder is 10~200nm.
Frit is lead-less glasses material, and it is made up of the raw material of following weight/mass percentage composition：Bi2O370%th, SiO2
10%th, Al2O312% and B2O38%, it has the softening point temperature in the range of 600~800 DEG C.
Organic bond is made up of the raw material of following weight/mass percentage composition：Ethyl cellulose 20%, butyl carbitol acetic acid
Ester 10%, terpinol 35%, butyl carbitol 15%, ATBC 15%, hexadecanol 5%.
Organic bond is prepared by the following method acquisition：Ethyl cellulose is added to butyl carbitol acetate, pine
In oleyl alcohol, butyl carbitol, ATBC and hexadecanol, 100~120 DEG C are heated to using microwave, is made after heating stirring
Obtain ethyl cellulose to be completely dissolved, used after being cooled to room temperature.
Inorganic additive is Al2O3And Bi2O3。
Organic additive is wetting dispersing agent, thickener and the levelling agent that market is commonly used.
The preparation method of the above-mentioned backplate slurry for two-sided PERC solar cells, comprises the following steps：
(1) inorganic bond is prepared：Each raw material of inorganic bond is chosen, in 100 DEG C of 1 hours of baking of vacuum tank, regulation
Temperature is 1200 DEG C of melting 9h, is dried after deionization water quenching, then 72 hours of ball milling, and sieving processing, obtains particle diameter 2 after drying
Glass dust between~3 μm；
(2) organic bond is prepared：Butyl carbitol acetate, terpinol, butyl are added from Tao Shi ethyl celluloses
Carbitol, ATBC, hexadecanol are heated to 100~120 DEG C, after heating stirring ethyl cellulose are completely dissolved,
Used after being cooled to room temperature；
(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin, machine are chosen
Again through pre-dispersed processing after tool mixing, it is stand-by to obtain pastel；
(4) after pastel progress pine being rolled and tightly rolled, that is, the backplate slurry for two-sided PERC solar cells is obtained.
The application method of the backplate slurry is the same as embodiment 1.
Embodiment 4
The backplate slurry for two-sided PERC solar cells that the present embodiment provides, by the raw material system of following mass parts
Into：Silver powder 65, inorganic bond 1.0, organic bond 30, organic additive 0.08, inorganic additive 1.5, epoxy resin
0.5。
Silver powder is dendroid silver powder.
Flint glass material includes the component of following weight/mass percentage composition：PbO 60%, SiO220%th, CuO 10% and MnO2
10%, it has the softening point temperature in the range of 420~560 DEG C.
Organic bond is made up of the raw material of following weight/mass percentage composition：Ethyl cellulose 15%, butyl carbitol acetic acid
Ester 12%, terpinol 45%, butyl carbitol 10%, ATBC 15%, hexadecanol 3%.
Organic bond is prepared by the following method acquisition：Ethyl cellulose is added to butyl carbitol acetate, pine
In oleyl alcohol, butyl carbitol, ATBC and hexadecanol, 100~120 DEG C are heated to using microwave, is made after heating stirring
Obtain ethyl cellulose to be completely dissolved, used after being cooled to room temperature.
Inorganic additive is CuO.
Organic additive is that city is levelling agent.
The preparation method of the above-mentioned backplate slurry for two-sided PERC solar cells, comprises the following steps：
(1) inorganic bond is prepared：Each raw material of inorganic bond is chosen, in 125 DEG C of 1 hours of baking of vacuum tank, regulation
Temperature is 1150 DEG C of melting 5h, is dried after deionization water quenching, then 48 hours of ball milling, and sieving processing, obtains particle diameter 1 after drying
Inorganic bond between~2 μm；
(2) organic bond is prepared：Ethyl cellulose is added into butyl carbitol acetate, terpinol, butyl card must
In alcohol, ATBC and hexadecanol, 100~120 DEG C are heated to using microwave, causes that ethyl cellulose is complete after heating stirring
Fully dissolved, used after being cooled to room temperature；
(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin, machine are chosen
Again through pre-dispersed processing after tool mixing, it is stand-by to obtain pastel；
(4) after pastel progress pine being rolled and tightly rolled, that is, the backplate slurry for two-sided PERC solar cells is obtained.
The application method of the backplate slurry is the same as embodiment 1.
Embodiment 5
As different from Example 1, the backplate slurry for two-sided PERC solar cells that the present embodiment provides, by
The raw material of following mass parts is made：Silver powder 60, inorganic bond 1.2, organic bond 28, organic additive 0.10 are inorganic to add
Add agent 1.1, epoxy resin 1.5.
Embodiments above is served only for that the invention will be further described, does not represent the limit to the scope of the present invention
System.Some nonessential modifications and adjustment that other people make according to the present invention still fall within protection scope of the present invention.
Claims (10)
- A kind of 1. backplate slurry for two-sided PERC solar cells, it is characterized in that being made up of the raw material of following mass parts： Silver powder 50~70, inorganic bond 0.5~3, organic bond 20~40, organic additive 0.05~0.2, inorganic additive 0.5~2.0, epoxy resin 0.1~3.
- 2. the backplate slurry according to claim 1 for two-sided PERC solar cells, it is characterized in that each raw material Proportion by weight is：Silver powder 55~65, inorganic bond 1.0~1.5, organic bond 25~30, organic additive 0.08~ 0.12, inorganic additive 0.8~1.5, epoxy resin 0.5~2.
- 3. the backplate slurry according to claim 1 or 2 for two-sided PERC solar cells, it is characterized in that：It is described Silver powder be spherical silver powder, flake silver powder, dendroid silver powder and irregular silver powder in one or more.
- 4. the backplate slurry according to claim 3 for two-sided PERC solar cells, it is characterized in that：Described silver Powder is the mixture of ball shape silver powder and flake silver powder, and the D50 of described ball shape silver powder is 0.5~3.0 μm, described flake silver powder D50 be 10~200nm.
- 5. the backplate slurry according to claim 1 or 2 for two-sided PERC solar cells, it is characterized in that：It is described Inorganic bond include frit, described frit is lead-less glasses material or flint glass material, wherein described unleaded glass Glass material includes the component of following weight/mass percentage composition：Bi2O360~80%, SiO21~20%, Al2O33~15% and B2O3 1~8%, it has the softening point temperature in the range of 600~800 DEG C；Described flint glass material contains including following quality percentage The component of amount：PbO 50~70%, SiO215~25%, CuO 1~15% and MnO25~15%, it has 420~560 DEG C In the range of softening point temperature.
- 6. the backplate slurry according to claim 1 or 2 for two-sided PERC solar cells, it is characterized in that described Organic bond is made up of the raw material of following weight/mass percentage composition：Ethyl cellulose 10~20%, butyl carbitol acetate 10 ~15%, terpinol 35~65%, butyl carbitol 10~40%, ATBC 5~15%, hexadecanol 1~5%.
- 7. the backplate slurry according to claim 6 for two-sided PERC solar cells, it is characterized in that described has Machine adhesive is prepared by the following method acquisition：Ethyl cellulose is added to butyl carbitol acetate, terpinol, butyl card 100~120 DEG C must be heated to using microwave in alcohol, ATBC and hexadecanol, ethyl cellulose is caused after heating stirring It is completely dissolved, is used after being cooled to room temperature.
- 8. the backplate slurry according to claim 1 or 2 for two-sided PERC solar cells, it is characterized in that：It is described Inorganic additive be Fe2O3、Fe3O4、Al2O3、Bi2O3、PbO、Co2O3、Co3O4、NiO、Sb2O5、ZnO、CuO、Cu2O、MnO2 Or the metallic compound of listed metal oxide can be produced in sintering process.
- 9. the backplate slurry according to claim 1 or 2 for two-sided PERC solar cells, it is characterized in that：It is described Organic additive commonly used for market wetting dispersing agent, the one or more in thickener and levelling agent.
- 10. the preparation side of the backplate slurry for two-sided PERC solar cells according to claim any one of 1-9 Method, it is characterized in that comprising the following steps：(1) inorganic bond is prepared：Each raw material of inorganic bond is chosen, is dried after mixing, regulation temperature is 1150~1250 DEG C 4~10h of melting, is dried after deionization water quenching, then is handled through ball milling, drying and sieving, obtains inorganic bond；(2) organic bond is prepared：After each raw material of organic bond is mixed, 80~120 DEG C are heated to using microwave, Bian Jia Hot side is stirred to each raw material be completely dissolved after obtain organic bond；(3) silver powder, inorganic bond, organic bond, inorganic additive, organic additive and epoxy resin are chosen, machinery is mixed It is stand-by to obtain pastel through pre-dispersed processing again after even；(4) after pastel progress pine being rolled and tightly rolled, that is, the backplate slurry for two-sided PERC solar cells is obtained.
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| CN109949966A (en) * | 2019-03-26 | 2019-06-28 | 浙江光达电子科技有限公司 | A kind of high reliability PERC crystal silicon solar batteries back side conductive silver slurry and its preparation process |
| CN111403077A (en) * | 2019-09-04 | 2020-07-10 | 杭州正银电子材料有限公司 | General back electrode silver paste for PERC single-sided double-sided battery and preparation method |
| CN111768890A (en) * | 2020-07-09 | 2020-10-13 | 江苏国瓷泓源光电科技有限公司 | Back silver paste for double-sided PERC solar cell |
| CN112216421A (en) * | 2020-09-15 | 2021-01-12 | 广州市儒兴科技开发有限公司 | PERC crystalline silicon solar cell back silver paste and preparation method and application thereof |
| CN112670370A (en) * | 2020-12-24 | 2021-04-16 | 横店集团东磁股份有限公司 | Sintering method and application of solar cell |
| CN113013291A (en) * | 2021-02-19 | 2021-06-22 | 横店集团东磁股份有限公司 | PERC double-sided battery and sintering method thereof |
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| CN109215835A (en) * | 2018-09-27 | 2019-01-15 | 海宁市瑞银科技有限公司 | PERC battery low-resistivity high adhesion force back silver paste and preparation method thereof |
| CN109949966A (en) * | 2019-03-26 | 2019-06-28 | 浙江光达电子科技有限公司 | A kind of high reliability PERC crystal silicon solar batteries back side conductive silver slurry and its preparation process |
| CN111403077A (en) * | 2019-09-04 | 2020-07-10 | 杭州正银电子材料有限公司 | General back electrode silver paste for PERC single-sided double-sided battery and preparation method |
| CN111403077B (en) * | 2019-09-04 | 2022-04-19 | 杭州正银电子材料有限公司 | General back electrode silver paste for PERC single-sided double-sided battery and preparation method |
| CN111768890A (en) * | 2020-07-09 | 2020-10-13 | 江苏国瓷泓源光电科技有限公司 | Back silver paste for double-sided PERC solar cell |
| CN111768890B (en) * | 2020-07-09 | 2021-11-02 | 江苏国瓷泓源光电科技有限公司 | Back silver paste for double-sided PERC solar cell |
| CN112216421A (en) * | 2020-09-15 | 2021-01-12 | 广州市儒兴科技开发有限公司 | PERC crystalline silicon solar cell back silver paste and preparation method and application thereof |
| CN112670370A (en) * | 2020-12-24 | 2021-04-16 | 横店集团东磁股份有限公司 | Sintering method and application of solar cell |
| CN113013291A (en) * | 2021-02-19 | 2021-06-22 | 横店集团东磁股份有限公司 | PERC double-sided battery and sintering method thereof |
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Application publication date: 20180109 |