CN104036844A - Environment-friendly water-soluble solar cell anode silver paste and preparation method thereof - Google Patents
Environment-friendly water-soluble solar cell anode silver paste and preparation method thereof Download PDFInfo
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- CN104036844A CN104036844A CN201410073519.2A CN201410073519A CN104036844A CN 104036844 A CN104036844 A CN 104036844A CN 201410073519 A CN201410073519 A CN 201410073519A CN 104036844 A CN104036844 A CN 104036844A
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Abstract
The invention discloses environment-friendly water-soluble solar cell anode silver paste and a preparation method thereof. The environment-friendly water-soluble solar cell anode silver paste comprises the following components by weight percentage: 80-90% of silver powder, 1-5% of lead-free glass powder, 6-16% of water-soluble resin and 1-6% of environment-friendly solvent. The environment-friendly water-soluble solar cell anode silver paste is simple in preparation technology, low in preparation cost, high in finished product rate, good in stability, good in silicon wafer expansion coefficient matching, good in ohmic contact, low in series resistance, high in fill factor, small in odor and low in environmental pollution, has a certain advantage in conversion efficiency compared with foreign equivalent brand products, and meets an environment-friendly requirement, and a requirement of a solar cell forthe anode silver paste is met.
Description
Technical field
The present invention relates to battery technology field, especially relate to solar cell anode silver paste of a kind of environment-friendly water-soluble and preparation method thereof.
Background technology
Along with signaling for help repeatedly of the traditional fuel energy such as coal, oil, natural gas, the harm that the use of non-renewable energy resources causes environment increasingly sharpens, and energy problem is own through seriously having restricted mankind's industry and economic development.New forms of energy relevant item is the just speed development to make rapid progress under the support energetically of country, and wherein crystal silicon solar energy battery is especially obvious in the effect of performance aspect energy-saving and emission-reduction as most important a kind of new forms of energy battery.
So-called solar cell refers to that by solar cell be medium, the energy of sunlight is converted into the process of electric energy.The power conversion mechanism of photovoltaic solar cell is different from solar thermal power generation, more with solar water heater system, the utilization of solar energy is existed to essential difference.Photovoltaic technology is based upon on the theoretical foundation of quantum mechanics and semiconductor physics, is devoted to the application that is developed in of photoelectric material and device, realizes the direct conversion of luminous energy and electric energy under normal temperature.
At present the existing solar cell anode silver paste in market is monopolized by foreign enterprise completely, and these by foreign enterprise monopolize that solar cell anode silver paste price is high, the feature of environmental protection and rate of finished products all not ideal enough.
Summary of the invention
Solar cell anode silver paste providing the environment-friendly water-soluble that a kind of feature of environmental protection is good, cost is low, rate of finished products is high and preparation method thereof is provided main purpose of the present invention.
The present invention proposes a kind of solar cell anode silver paste of environment-friendly water-soluble, composed of the following components by weight percentage:
Preferably, described silver powder has following characteristics: the tap density of spherical particle, 5-6,0.3-0.6m
2the surface area of/gm; Particle size distribution is as follows: d10 is that 1.0-1.5 μ m, d50 are that 1.5-2.3 μ m, d90 are 2.5-3.5 μ m.
Preferably, described lead-free glass powder is composed of the following components by weight: Bi
2o
3for 0-60 part, B
2o
3for 2-6 part, Al
2o
3for 0.5-8 part, SiO
2for 10-15 part, P
2o
5for 2-5 part, Li
2o is 1-3.5 part, MgCO
3for 1-3.5 part, Na
2o is 0-5 part.
Preferably, described water-soluble resin comprise following component a kind of, two kinds or multiple: water soluble polyurethane resin, water soluble phenol resin, water-soluble acrylic modified epoxy.
Preferably, described environment-friendly type solvent comprise following component a kind of, two kinds or multiple: nitrogen methyl pyrrolidone, diethylene glycol dimethyl ether, diethylene glycol, isopropyl alcohol, DPG.
The another its preparation method that proposes a kind of solar cell anode silver paste of environment-friendly water-soluble of the present invention, the method comprises:
The preparation of step 1, lead-free glass powder: by weight following component is mixed, form the first mixture: Bi
2o
3for 0-60 part, B
2o
3for 2-6 part, Al
2o
3for 0.5-8 part, SiO
2for 10-15 part, P
2o
5for 2-5 part, Li
2o is 1-3.5 part, MgCO
3for 1-3.5 part, Na
2o is 0-5 part;
Above-mentioned the first mixture is placed in to melting 0.5-2 hour under 1150-1200 ℃ of environment, form glass melting liquid, glass melting liquid is dry after shrend, first use the zirconia ball dry grinding 0.5-2 hour of 10-30mm, then use the zirconia ball wet-milling 6-30 hour of 1-6mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m;
The preparation of step 2, water-soluble resin: by weight percentage following component is added to 2-4 hour in the Water Tank with Temp.-controlled of 80-100 ℃, obtain percentage by weight after cooling and be 100% water-soluble resin: 5-30% resin, 95-70% environment-friendly type solvent;
The preparation of step 3, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 1-6% environment-friendly type solvent prepared by the step 2 of the silver powder of 80-90%, lead-free glass powder prepared by the step 1 of 1-5%, 6-16%.
The preparation technology of the solar cell anode silver paste of environment-friendly water-soluble provided by the present invention is simple, preparation cost is low, and rate of finished products is high; Solar cell anode silver paste provided by the invention has good stability simultaneously, good with silicon chip coefficient of expansion matching, ohmic contact is good, series resistance is little, fill factor, curve factor is high, the external equal brand product of transformation efficiency has some superiority, meets the requirement of solar cell to anode silver paste; The solar cell anode silver paste smell providing of the present invention is little in addition, and environmental pollution is little, meet the requirement of environmental protection.
Embodiment
Below in conjunction with specific embodiment, further describe the present invention, advantage and disadvantage of the present invention will be more clear along with description.But these embodiment are only exemplary, scope of the present invention are not formed to any restriction.It will be understood by those skilled in the art that lower without departing from the spirit and scope of the present invention and can the details of technical solution of the present invention and form be modified or be replaced, but these modifications and replacement all fall within the scope of protection of the present invention.
Its preparation method of the solar cell anode silver paste of environment-friendly water-soluble of the present invention, comprising:
The preparation of step 1, lead-free glass powder: by weight following component is mixed, form the first mixture: Bi
2o
3for 0-60 part, B
2o
3for 2-6 part, Al
2o
3for 0.5-8 part, SiO
2for 10-15 part, P
2o
5for 2-5 part, Li
2o is 1-3.5 part, MgCO
3for 1-3.5 part, Na
2o is 0-5 part;
Above-mentioned the first mixture is placed in to melting 0.5-2 hour under 1150-1200 ℃ of environment, form glass melting liquid, glass melting liquid is dry after shrend, first use the zirconia ball dry grinding 0.5-2 hour of 10-30mm, then use the zirconia ball wet-milling 6-30 hour of 1-6mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m;
The preparation of step 2, water-soluble resin: by weight percentage following component is added to 2-4 hour in the Water Tank with Temp.-controlled of 80-100 ℃, obtain percentage by weight after cooling and be 100% water-soluble resin: 5-30% resin, 95-70% environment-friendly type solvent;
The preparation of step 3, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 1-6% environment-friendly type solvent prepared by the step 2 of the silver powder of 80-90%, lead-free glass powder prepared by the step 1 of 1-5%, 6-16%.
Preparation embodiment: the preparation of lead-free glass powder
Preparation embodiment 1
By weight following component is mixed, form the first mixture: Bi
2o
3be 20 parts, B
2o
3be 2 parts, Al
2o
3be 7 parts, SiO
2be 10 parts, P
2o
5be 4 parts, Li
2o is 3.5 parts, MgCO
3it is 1 part.
Above-mentioned the first mixture is placed under 1150 ℃ of environment to melting 2 hours, form glass melting liquid, glass melting liquid is dry after shrend, first with the zirconia ball of 10mm, dry grind 1 hour, then use the zirconia ball wet-milling 20 hours of 3mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m.
Preparation embodiment 2
By weight following component is mixed, form the first mixture: B
2o
3be 6 parts, Al
2o
3be 8 parts, SiO
2be 12 parts, P
2o
5be 5 parts, Li
2o is 2 parts, MgCO
3be 3 parts, Na
2o is 5 parts.
Above-mentioned the first mixture is placed under 1200 ℃ of environment to melting 0.5 hour, form glass melting liquid, glass melting liquid is dry after shrend, first with the zirconia ball of 30mm, dry grind 1.5 hours, then use the zirconia ball wet-milling 25 hours of 6mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m.
Preparation embodiment 3
By weight following component is mixed, form the first mixture: Bi
2o
3be 60 parts, B
2o
3be 4 parts, Al
2o
3be 0.5 part, SiO
2be 15 parts, P
2o
5be 2 parts, Li
2o is 1 part, MgCO
3be 3.5 parts, Na
2o is 2 parts.
Above-mentioned the first mixture is placed under 1180 ℃ of environment to melting 1.5 hours, form glass melting liquid, glass melting liquid is dry after shrend, first with the zirconia ball of 20mm, dry grind 0.5 hour, then use the zirconia ball wet-milling 6 hours of 1mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m.
Preparation embodiment 4
By weight following component is mixed, form the first mixture: Bi
2o
3be 40 parts, B
2o
3be 3 parts, Al
2o
3be 4 parts, SiO
2be 10 parts, P
2o
5be 3 parts, Li
2o is 3 parts, MgCO
3be 2 parts, Na
2o is 3 parts.
Above-mentioned the first mixture is placed under 1150 ℃ of environment to melting 1 hour, form glass melting liquid, glass melting liquid is dry after shrend, first with the zirconia ball of 30mm, dry grind 2 hours, then use the zirconia ball wet-milling 30 hours of 4mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m.
The preparation of the solar cell anode silver paste of environment-friendly water-soluble
Embodiment 1
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 80 ℃ 4 hours, and filter by 300 object stainless steel wire sieves, obtain percentage by weight after cooling and be 100% water-soluble resin: 5% water-soluble acrylic modified epoxy, 25% DPG and 70% isopropyl alcohol.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 5% environment-friendly type solvent prepared by the lead-free glass powder of 80% silver powder, 3% preparation embodiment 1 preparation, 12% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
Embodiment 2
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 80 ℃ 4 hours, and filter by 300 object stainless steel wire sieves, after cooling, obtain percentage by weight and be 100% water-soluble resin: 15% water soluble polyurethane resin, 10% nitrogen methyl pyrrolidone, 50% DPG, 25% diethylene glycol.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 3% environment-friendly type solvent prepared by the lead-free glass powder of 85% silver powder, 2% preparation embodiment 2 preparations, 10% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
Embodiment 3
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 80 ℃ 4 hours, and filter by 300 object stainless steel wire sieves, obtain percentage by weight after cooling and be 100% water-soluble resin: 20% water soluble phenol resin, 80% diethylene glycol dimethyl ether.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 6% environment-friendly type solvent prepared by the lead-free glass powder of 82% silver powder, 2% preparation embodiment 3 preparations, 10% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
Embodiment 4
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 100 ℃ 2 hours, and filter by 300 object stainless steel wire sieves, obtain percentage by weight after cooling and be 100% water-soluble resin: 10% water soluble polyurethane resin, 10% water soluble phenol resin, 10% water-soluble acrylic modified epoxy, 35% nitrogen methyl pyrrolidone, 35% DPG.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: 90% silver powder, 1% preparation embodiment prepare water-soluble resin, 3% environment-friendly type solvent prepared by 4 lead-free glass powder, 6% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
Embodiment 5
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 90 ℃ 3 hours, and filter by 300 object stainless steel wire sieves, obtain percentage by weight after cooling and be 100% water-soluble resin: 15% water soluble polyurethane resin, 15% water soluble phenol resin, 30% nitrogen methyl pyrrolidone, 10% diethylene glycol dimethyl ether, 15% diethylene glycol, 15% isopropyl alcohol.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 1% environment-friendly type solvent prepared by the lead-free glass powder of 88% silver powder, 5% preparation embodiment 3 preparations, 6% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
Embodiment 6
The preparation of step 1, water-soluble resin: by weight percentage following component is added in the Water Tank with Temp.-controlled of 85 ℃ 3 hours, and filter by 300 object stainless steel wire sieves, obtain percentage by weight after cooling and be 100% water-soluble resin: 15% water soluble polyurethane resin, 10% water-soluble acrylic modified epoxy, 75% diethylene glycol dimethyl ether.
The preparation of step 2, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 2% environment-friendly type solvent prepared by the lead-free glass powder of 80% silver powder, 2% preparation embodiment 1 preparation, 16% step 1.
Solar cell anode silver paste to the prepared environment-friendly water-soluble of the present embodiment carries out performance test, and test result refers to table 1.
The silver powder adopting in the above embodiment of the present invention 1-6 has following characteristics: the tap density of spherical particle, 5-6,0.3-0.6m
2the surface area of/gm; Particle size distribution is as follows: d10 is that 1.0-1.5 μ m, d50 are that 1.5-2.3 μ m, d90 are 2.5-3.5 μ m.
The performance test results from the solar cell anode silver paste of the prepared environment-friendly water-soluble of the above embodiment of the present invention 1 to 6: the solar cell anode silver paste of environment-friendly water-soluble provided by the present invention has good stability, good with silicon chip coefficient of expansion matching, ohmic contact is good, series resistance is little, fill factor, curve factor is high, the external equal brand product of transformation efficiency has some superiority, the silver slurry smell providing simultaneously of the present invention is little, environmental pollution is little, meet the requirement of environmental protection, meets the requirement of solar cell to anode silver paste.The solar cell anode silver paste preparation cost of environment-friendly water-soluble provided by the present invention is low in addition, and rate of finished products is high.
Table 1:
Should be understood that; these are only the preferred embodiments of the present invention; can not therefore limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a solar cell anode silver paste for environment-friendly water-soluble, composed of the following components by weight percentage:
2. the solar cell anode silver paste of environment-friendly water-soluble according to claim 1, is characterized in that, described silver powder has following characteristics: the tap density of spherical particle, 5-6,0.3-0.6m
2the surface area of/gm; Particle size distribution is as follows: d10 is that 1.0-1.5 μ m, d50 are that 1.5-2.3 μ m, d90 are 2.5-3.5 μ m.
3. the solar cell anode silver paste of environment-friendly water-soluble according to claim 1, is characterized in that, described lead-free glass powder is composed of the following components by weight: Bi
2o
3for 0-60 part, B
2o
3for 2-6 part, Al
2o
3for 0.5-8 part, SiO
2for 10-15 part, P
2o
5for 2-5 part, Li
2o is 1-3.5 part, MgCO
3for 1-3.5 part, Na
2o is 0-5 part.
4. the solar cell anode silver paste of environment-friendly water-soluble according to claim 1, it is characterized in that, described water-soluble resin comprise following component a kind of, two kinds or multiple: water soluble polyurethane resin, water soluble phenol resin, water-soluble acrylic modified epoxy.
5. according to the solar cell anode silver paste of the environment-friendly water-soluble described in claim 1 to 4 any one, it is characterized in that, described environment-friendly type solvent comprise following component a kind of, two kinds or multiple: nitrogen methyl pyrrolidone, diethylene glycol dimethyl ether, diethylene glycol, isopropyl alcohol, DPG.
6. an its preparation method for the solar cell anode silver paste of environment-friendly water-soluble, is characterized in that, the method comprises:
The preparation of step 1, lead-free glass powder: by weight following component is mixed, form the first mixture: Bi
2o
3for 0-60 part, B
2o
3for 2-6 part, Al
2o
3for 0.5-8 part, SiO
2for 10-15 part, P
2o
5for 2-5 part, Li
2o is 1-3.5 part, MgCO
3for 1-3.5 part, Na
2o is 0-5 part;
Above-mentioned the first mixture is placed in to melting 0.5-2 hour under 1150-1200 ℃ of environment, form glass melting liquid, glass melting liquid is dry after shrend, first use the zirconia ball dry grinding 0.5-2 hour of 10-30mm, then use the zirconia ball wet-milling 6-30 hour of 1-6mm, after super-dry, can obtain the lead-free glass powder that D50 is 3～5 μ m;
The preparation of step 2, water-soluble resin: by weight percentage following component is added to 2-4 hour in the Water Tank with Temp.-controlled of 80-100 ℃, obtain percentage by weight after cooling and be 100% water-soluble resin: 5-30% resin, 95-70% environment-friendly type solvent;
The preparation of step 3, anode silver paste: by weight percentage by following component mix and blend, form homogeneous mixture, and fully disperse on three-roller, obtain percentage by weight and be the solar cell anode silver paste of 100% environment-friendly water-soluble: water-soluble resin, 1-6% environment-friendly type solvent prepared by the step 2 of the silver powder of 80-90%, lead-free glass powder prepared by the step 1 of 1-5%, 6-16%.
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|---|---|---|---|
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| CN110942918A (en) * | 2018-09-21 | 2020-03-31 | 钰冠科技股份有限公司 | Stacked capacitor, manufacturing method thereof and silver colloid layer |
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