CN114550975A - Organic carrier for double-sided Perc battery aluminum paste and preparation method thereof - Google Patents
Organic carrier for double-sided Perc battery aluminum paste and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an organic carrier for double-sided Perc battery aluminum paste and a preparation method thereof. The organic carrier comprises the following raw materials in percentage by mass: 30-60% of organic resin and 40-70% of organic solvent; the organic solvent comprises a solvent A, a solvent B and a solvent C; the boiling point of the solvent A is less than 200 ℃; the boiling point of the solvent B is 200-250 ℃; the boiling point of the solvent C is more than 250 ℃. According to the invention, organic solvents with high, medium and low boiling points are matched and combined, so that the organic solvents can gradually volatilize in the drying process of the aluminum paste prepared by the organic carrier, the aluminum layer does not have a hole phenomenon and forms a compact structure, and the adhesion performance of the aluminum layer on a silicon wafer is improved. In addition, the prepared aluminum paste has moderate viscosity and good printing performance, and the printed aluminum fine grid has higher aspect ratio and uniform line width; in the aluminum paste sintering process, the organic carrier can be fully volatilized and decomposed, the residual quantity is extremely low, and the resistance of the aluminum fine grid line is reduced.
Description
Technical Field
The invention belongs to the technical field of organic carriers for battery slurry, and particularly relates to an organic carrier for aluminum slurry of a double-sided Perc battery and a preparation method thereof.
Background
In the development of the field of the current crystalline silicon solar cell, Passivated Emitter Rear contact (Perc for short) is used in batch, and the efficiency of the traditional Perc cell which can be produced in batch reaches 21.5-23%. And two-sided Perc battery has two-sided electricity generation, two glass encapsulation subassemblies reliability height, and the aluminium thick liquid consumption is low grade advantage, and is very high with traditional battery technology compatibility, can reach 24% conversion efficiency, can better satisfy market reality demand, becomes the focus of industry research in recent years.
The double-sided Perc single crystal silicon solar cell uses an aluminum grid line structure on the back surface to replace an all-aluminum back surface field structure in a conventional single-sided Perc solar cell. The double-sided Perc aluminum paste only forms aluminum-silicon reaction and contact in local areas after sintering. Because the double-sided Perc aluminum paste is only printed in the area where the film is opened by laser and is in a grid line shape during printing, compared with the traditional single-sided Perc solar cell, the limited volume aluminum designed by the grid line structure of the double-sided Perc solar cell promotes the formation of a good BSF layer, which is beneficial to the improvement of the efficiency of the double-sided Perc cell, but the double-sided Perc cell has the defects that the resistance of a back electrode is increased by the back aluminum grid line structure, and the filling factor is reduced.
Most of the prior double-sided aluminum pastes are easy to have the problems of printing missing, virtual printing, uneven thickness, paste leakage, plate sticking, too wide line width and the like in printing, except for researching the influence of factors such as a printing process, screen parameters and the like on the problems, wherein the printing performance of the aluminum paste is also the main reason for the phenomena, and the more important reason in the aluminum paste is an organic carrier except for a solid component aluminum powder. The organic carrier of aluminum paste is prepared by dispersing solid aluminum powder and glass powder in double-sided Perc aluminum paste, gradually volatilizing, burning and decomposing in the high-temperature drying and sintering processes, and dissolving high molecular polymer in an organic solvent at a certain temperature. The double-sided Perc aluminum paste can keep good uniformity and stability in the storage process, and has no conductive particle agglomeration and no sedimentation; in turn, can exhibit good rheology, thixotropy and stable viscosity during screen printing. These important properties are determined by the quality of the organic vehicle. Most of organic solvents in organic carriers in the current market adopt butyl carbitol, butyl carbitol acetate, terpineol, alcohol ester, twelve, and the like, the boiling point range of the solvents is 220-250 ℃, the boiling point is relatively high, the actual drying temperature of a battery factory is 200-250 ℃, the drying time is short, the solvent system is easy to generate the phenomenon of drying, the difference between the boiling points is not more than 30 ℃, the concentration is high, the volatile gradient is insufficient, the aluminum film is easy to generate the hole phenomenon in the drying process, the density of the aluminum film is insufficient, and the electrical property of the battery is influenced. In addition, the aluminum paste prepared by the solvent which is mainly used in the market has insufficient wetting capacity on the silicon wafer in the printing process, the net passing performance is poor, and large-area virtual printing and grid breaking phenomena are easy to occur, so that the bulk resistance of an aluminum layer is increased, and the electrical performance parameters of the battery are influenced. Therefore, in the aspect of selecting the organic solvent, the wettability of the solvent to the silicon wafer needs to be fully considered, but in consideration of the requirement of aluminum wire shaping, a solvent system with extremely strong wettability to the silicon wafer cannot be adopted completely, and because the wettability is too good, the wire shape is easy to collapse, and the shaping is not good, the back efficiency of the battery is low, and the double-sided rate is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an organic carrier for aluminum paste of a double-sided Perc battery and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: an organic carrier for aluminum paste of a double-sided Perc battery comprises the following raw materials in percentage by mass: 30-60% of organic resin and 40-70% of organic solvent; the organic solvent comprises a solvent A, a solvent B and a solvent C; the boiling point of the solvent A is less than 200 ℃; the boiling point of the solvent B is 200-250 ℃; the boiling point of the solvent C is more than 250 ℃.
The organic solvent with the boiling point less than 200 ℃ is a low-boiling-point organic solvent; the organic solvent with the boiling point of 200-250 ℃ is a medium-boiling-point organic solvent; the organic solvent having a boiling point of greater than 250 ℃ is a high boiling point organic solvent.
The invention adopts organic solvents with high, medium and low boiling points to realize volatilization gradient, and the organic solvents can gradually volatilize in the aluminum paste drying process, so that the aluminum layer can not generate holes to form a compact structure, and the adhesion performance of the aluminum layer on the silicon chip is better. Therefore, the organic carrier can effectively disperse aluminum powder particles and other solid powder, and the prepared aluminum paste has the following advantages: firstly, the aluminum paste has good drying performance and good adhesive force, so that the battery piece can not stain a belt in the conveying process and has no powder falling phenomenon. Secondly, the aluminum paste has moderate viscosity, good printing performance, good ink permeability and ink recovery capability, and no defect printing and grid breaking problems in printing, and the printed aluminum fine grid has higher aspect ratio, uniform line width and no obvious widening phenomenon. And thirdly, in the aluminum paste sintering process, the organic carrier can be fully volatilized and decomposed, and the residual quantity is extremely low, so that the resistance of the aluminum fine grid line is reduced, and the conversion efficiency of the aluminum paste is improved. Fourthly, the viscosity stability of the aluminum paste is good, and the viscosity rising amplitude of the aluminum paste is small.
In a preferred embodiment of the present invention, the mass ratio of the solvent a, the solvent B and the solvent C is 2 to 3: 6-8: 0-2.
The matching proportion of the high, medium and low boiling point organic solvent has a large influence on the performance of the prepared paste, the matching proportion of the high, medium and low boiling point organic solvent is within the limited range of the invention, the thixotropic index of the prepared aluminum paste is gradually increased along with the increase of the proportion of the high boiling point organic solvent, the shaping effect is obviously improved, and the line width is gradually reduced; however, as the proportion of the high-boiling organic solvent continues to increase, i.e., the mass ratio of the solvent a, the solvent B and the solvent C increases to 1: 6: 3, the drying performance of the aluminum paste is obviously deteriorated, and the phenomenon of drying without drying is caused, so that the phenomenon of belt contamination is caused.
In a preferred embodiment of the present invention, the mass ratio of the solvent a, the solvent B, and the solvent C is 2: 6: 2.
the proportion of the high, medium and low boiling point organic solvent is 2: 6: and 2, the aluminum paste prepared by the organic carrier has high density, lowest resistance, high thixotropic index and lowest line width.
In a preferred embodiment of the present invention, the solvent a is at least one of ethylene glycol methyl ether, propylene glycol butyl ether, and propylene glycol methyl ether acetate.
In a preferred embodiment of the present invention, the solvent B is at least one selected from butyl carbitol, butyl carbitol acetate, alcohol ester dodeca, terpineol, and propylene glycol phenyl ether.
In a preferred embodiment of the present invention, the solvent C is at least one of dibutyl diglycol adipate and diethylene glycol dibenzoate.
In a preferred embodiment of the present invention, the organic resin is a cellulose acetate butyrate-modified resin.
The invention also claims a preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery, which comprises the following steps:
and (3) placing the organic solvent and the organic resin in a container, and stirring for 10-20 minutes to fully mix the organic solvent and the organic resin to obtain the organic carrier for the double-sided Perc battery aluminum paste.
The preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery adopts direct stirring, does not need heating, is simple and convenient compared with a carrier taking ethyl cellulose as main resin, has low energy consumption, and does not have the phenomenon of incomplete resin dissolution.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the organic solvent with high, medium and low boiling points to carry out collocation and combination to realize the volatilization gradient, and in the drying process of the aluminum paste, the organic solvent can gradually volatilize to ensure that the aluminum layer does not have a hole phenomenon and forms a compact structure, so that the adhesion performance of the aluminum layer on the silicon chip is better, and the battery piece can not stain a belt and has no powder falling phenomenon in the conveying process. And the aluminum paste prepared by the organic carrier has moderate viscosity and good printing performance, and the printed aluminum fine grid has higher aspect ratio and uniform line width. In the aluminum paste sintering process, the organic carrier can be fully volatilized and decomposed, and the residual quantity is extremely low, so that the resistance of the aluminum fine grid line is reduced, and the conversion efficiency of the aluminum paste is improved.
Drawings
FIG. 1 is a SEM image of a partial comparison of the density of aluminum pastes for two-sided Perc cells formulated with organic vehicle prepared in examples 1, 4-5 and comparative example 6;
FIG. 2 is a density comparison SEM image of aluminum pastes for two-sided Perc cells formulated with organic vehicle prepared in examples 1, 4-5 and comparative example 6;
FIG. 3 is a graph showing the shaping effect and line width comparison of aluminum pastes for two-sided Perc cells formulated with organic vehicle prepared in examples 1, 4-5 and comparative example 6;
FIG. 4 is a graph comparing the adhesion after sintering of aluminum pastes for double-sided Perc cells formulated with organic vehicle prepared in examples 1, 4-5 and comparative example 6.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent comprises propylene glycol methyl ether acetate and butyl carbitol; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol is 2: 8.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery comprises the following steps:
and (3) placing the organic solvent and the cellulose acetate butyrate modified resin in a container, and stirring for 10-20 minutes to fully mix the organic solvent and the cellulose acetate butyrate modified resin to obtain the organic carrier for the double-sided Perc battery aluminum paste.
Example 2
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 30% of cellulose acetate butyrate modified resin and 70% of organic solvent; the organic solvent comprises ethylene glycol methyl ether and alcohol ester twelve; the mass ratio of ethylene glycol methyl ether to alcohol ester twelve is 2: 8.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Example 3
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 60% of cellulose acetate butyrate modified resin and 40% of organic solvent; the organic solvent comprises propylene glycol butyl ether, butyl carbitol acetate and diethylene glycol dibenzoate; the mass ratio of the propylene glycol butyl ether to the butyl carbitol acetate to the diethylene glycol dibenzoate is 2: 6: 2.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Example 4
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent comprises propylene glycol methyl ether acetate, butyl carbitol and dibutyl diglycol adipate; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol to the dibutyl diglycol adipate is 3: 6: 1.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Example 5
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent comprises propylene glycol methyl ether acetate, butyl carbitol and dibutyl diglycol adipate; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol to the dibutyl diglycol adipate is 2: 6: 2.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Comparative example 1
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 25% ethyl cellulose, 75% organic solvent; the organic solvent comprises propylene glycol methyl ether acetate, butyl carbitol and dibutyl diglycol adipate; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol to the dibutyl diglycol adipate is 2: 6: 2.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery comprises the following steps:
and (3) placing the organic solvent and the ethyl cellulose in a container, stirring and heating for 60-120 minutes to fully mix the organic solvent and the ethyl cellulose, thus obtaining the organic carrier for the double-sided Perc battery aluminum paste.
Comparative example 2
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% ethyl cellulose, 50% organic solvent; the organic solvent comprises propylene glycol methyl ether acetate, butyl carbitol and dibutyl diglycol adipate; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol to the dibutyl diglycol adipate is 2: 6: 2.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc cell is the same as that of comparative example 1.
Comparative example 3
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent is butyl carbitol.
The preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Comparative example 4
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent is dibutyl diglycol adipate.
The preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Comparative example 5
The organic carrier for the aluminum paste of the double-sided Perc battery comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent is propylene glycol methyl ether acetate.
The preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Comparative example 6
The organic carrier for the double-sided Perc battery aluminum paste comprises the following raw materials in percentage by mass: 50% of cellulose acetate butyrate modified resin and 50% of organic solvent; the organic solvent comprises propylene glycol methyl ether acetate, butyl carbitol and dibutyl diglycol adipate; the mass ratio of the propylene glycol methyl ether acetate to the butyl carbitol to the dibutyl diglycol adipate is 1: 6: 3.
the preparation method of the organic carrier for the aluminum paste of the double-sided Perc battery is the same as that of the embodiment 1.
Test example 1
The preparation method of the double-sided Perc battery aluminum paste comprises the following steps:
uniformly mixing aluminum powder, glass powder and an organic carrier, and rolling for 5 times by a three-roll grinder to obtain double-sided Perc battery aluminum paste; the organic carrier is one of the organic carriers prepared in examples 1-5 and comparative examples 1-6; the aluminum powder is spherical aluminum powder, and the particle size of D50 is less than 10 mu m; the glass powder is vanadium lead barium glass powder, and the particle size of D50 is 1.0-3.0 μm; the mass ratio of the aluminum powder to the glass powder to the organic carrier is 75: 3: 22.
TABLE 1 Performance results for aluminum pastes for two-sided Perc cells formulated with organic vehicle prepared in examples 1-5 and comparative examples 1-6
| Line width/mum of aluminum wire | Thixotropic index | Drying performance | Resistance/m omega | |
| Example 1 | 170 | 2.02 | Good drying effect | 258 |
| Example 2 | 180 | 1.85 | Good drying effect | 250 |
| Example 3 | 138 | 3.85 | Good drying effect | 230 |
| Example 4 | 147 | 2.80 | Good drying effect | 245 |
| Example 5 | 135 | 3.87 | Good drying effect | 220 |
| Comparative example 1 | 210 | 1.67 | Good drying effect | 240 |
| Comparative example 2 | 150 | 2.73 | Good drying effect | 262 |
| Comparative example 3 | 168 | 2.05 | Drying and powdering | 250 |
| Comparative example 4 | 130 | 4.50 | Can not be dried | 260 |
| Comparative example 5 | 190 | 1.92 | Drying and powdering | 320 |
| Comparative example 6 | 136 | 4.00 | Can not be dried | 228 |
Comparative example 1 compared with the examples of the present application, the aluminum paste for the battery prepared in comparative example 1 has a significantly wider line width of the aluminum wire. Comparative example 2 has higher resistance than the examples, and poor printing performance is caused by an excessively high proportion of ethyl cellulose. Compared with the embodiment of the application, the aluminum paste drying performance of the battery prepared in the comparative example 3 is obviously poor, and the phenomenon of drying and powder falling occurs. Comparative example 4 compared with the examples of the present application, the aluminum paste for a battery prepared in comparative example 4 has high thixotropic index, no drying and high resistance, and the solvent of comparative example 4 is a pure high boiling point solvent, which results in high residue after sintering of the aluminum paste for a battery. Compared with the embodiment of the application, the aluminum wire of the aluminum paste of the battery configured in the comparative example 5 has a significantly wider line width, a higher resistance and a phenomenon of drying and powder falling, and the density of the aluminum paste of the battery is deteriorated after sintering because the solvent of the comparative example 5 is a pure low-boiling point solvent. Compared with the examples of the application, the aluminum paste drying performance of the battery prepared in the comparative example 6 is obviously poor, the phenomenon of drying is not generated, and the belt contamination phenomenon is easily caused.
FIGS. 1(a) and 2(a) are density SEM images of two-sided Perc cell aluminum pastes formulated with organic vehicle prepared in example 1; FIGS. 1(b) and 2(b) are density SEM images of two-sided Perc cell aluminum pastes formulated with organic vehicle prepared in example 4; FIGS. 1(c) and 2(c) are density SEM images of two-sided Perc cell aluminum pastes formulated with organic vehicle prepared in example 5; FIGS. 1(d) and 2(d) are density SEM images of the aluminum paste of the two-sided Perc cell formulated with the organic vehicle prepared in comparative example 6. As can be seen from fig. 1 and 2, as the proportion of the high-boiling-point organic solvent increases, the density of the aluminum layer gradually increases, so that the resistance of the aluminum wire is reduced, and the conversion efficiency of the battery is improved.
FIG. 3(a) is a graph of the plastic effect and aluminum line width of the aluminum paste for a two-sided Perc cell formulated with organic vehicle prepared in example 1; FIG. 3(b) is a graph of the plastic effect and aluminum line width of the aluminum paste for a two-sided Perc cell formulated with the organic vehicle prepared in example 4; FIG. 3(c) is a graph of the plastic effect and aluminum line width of the aluminum paste for a two-sided Perc cell formulated with organic vehicle prepared in example 5; fig. 3(d) is a graph of the shaping effect and aluminum line width of the aluminum paste for the double-sided Perc cell formulated with the organic vehicle prepared in comparative example 6. It can be seen from fig. 3 that, as the proportion of the high-boiling-point organic solvent increases, the shaping effect of the aluminum wire gradually becomes better, and the line width gradually decreases, so that the back efficiency of the double-sided battery is improved, and the back power generation efficiency is improved.
According to the invention, the 3M adhesive tape is used for tearing the sintered aluminum wire to evaluate the adhesion force of the sintered aluminum wire. FIG. 4(a) is an adhesion diagram of the aluminum paste of the double-sided Perc cell formulated with organic vehicle prepared in example 1 after sintering; FIG. 4(b) is an adhesion diagram of the organic vehicle formulated double-sided Perc cell aluminum paste prepared in example 4 after sintering; FIG. 4(c) is an adhesion diagram of the organic vehicle formulated double-sided Perc cell aluminum paste prepared in example 5 after sintering; fig. 4(d) is an adhesion diagram of the organic vehicle formulated double-sided Perc cell aluminum paste prepared in comparative example 6 after sintering. As can be seen from fig. 4, the aluminum paste prepared in the embodiment has good adhesion to the aluminum wire after sintering, which can reduce the powder falling phenomenon after friction of the battery piece lamination, and the good adhesion further shows that the aluminum layer has high density and the aluminum wire has low resistance, which can reduce the series resistance of the battery, thereby improving the conversion efficiency of the battery.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The organic carrier for the aluminum paste of the double-sided Perc battery is characterized by comprising the following raw materials in percentage by mass: 30-60% of organic resin and 40-70% of organic solvent; the organic solvent comprises a solvent A, a solvent B and a solvent C; the boiling point of the solvent A is less than 200 ℃; the boiling point of the solvent B is 200-250 ℃; the boiling point of the solvent C is more than 250 ℃.
2. The organic vehicle for aluminum paste of the double-sided Perc cell according to claim 1, wherein the mass ratio of the solvent a, the solvent B and the solvent C is 2-3: 6-8: 0-2.
3. The organic vehicle for aluminum paste of a double-sided Perc cell according to claim 2, wherein the mass ratio of the solvent a, the solvent B and the solvent C is 2: 6: 2.
4. the organic vehicle for aluminum paste of a double-sided Perc battery as claimed in claim 1, wherein the solvent a is at least one of ethylene glycol methyl ether, propylene glycol butyl ether and propylene glycol methyl ether acetate.
5. The organic vehicle for aluminum paste of double-sided Perc cell as claimed in claim 1, wherein the solvent B is at least one of butyl carbitol, butyl carbitol acetate, alcohol ester dodeca, terpineol, and propylene glycol phenyl ether.
6. The organic vehicle for aluminum paste of a double-sided Perc cell according to claim 1, wherein the solvent C is at least one of dibutyl diglycol adipate and diethylene glycol dibenzoate.
7. The organic vehicle for aluminum paste of a double-sided Perc cell according to claim 1, wherein the organic resin is cellulose acetate butyrate modified resin.
8. The method for preparing the organic carrier for the aluminum paste of the double-sided Perc battery as claimed in any one of claims 1 to 7, comprising the steps of:
and (3) placing the organic solvent and the organic resin in a container, and stirring for 10-20 minutes to fully mix the organic solvent and the organic resin to obtain the organic carrier for the double-sided Perc battery aluminum paste.
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| CN116031013A (en) * | 2023-01-10 | 2023-04-28 | 广州市儒兴科技股份有限公司 | Organic carrier for aluminum paste on back surface of double-sided PERC battery, aluminum paste and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876003A (en) * | 2017-03-09 | 2017-06-20 | 江苏欧耐尔新型材料股份有限公司 | Match solar battery front side conductive silver paste and preparation method without net netting version |
| 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876003A (en) * | 2017-03-09 | 2017-06-20 | 江苏欧耐尔新型材料股份有限公司 | Match solar battery front side conductive silver paste and preparation method without net netting version |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116031013A (en) * | 2023-01-10 | 2023-04-28 | 广州市儒兴科技股份有限公司 | Organic carrier for aluminum paste on back surface of double-sided PERC battery, aluminum paste and preparation method |
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