CN113087401A - Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof - Google Patents
Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof Download PDFInfo
- Publication number
- CN113087401A CN113087401A CN202110485593.5A CN202110485593A CN113087401A CN 113087401 A CN113087401 A CN 113087401A CN 202110485593 A CN202110485593 A CN 202110485593A CN 113087401 A CN113087401 A CN 113087401A
- Authority
- CN
- China
- Prior art keywords
- powder
- glass
- parts
- free
- oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 182
- 239000011521 glass Substances 0.000 title claims abstract description 138
- 229910021419 crystalline silicon Inorganic materials 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title description 15
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims abstract description 61
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 50
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims abstract description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052810 boron oxide Inorganic materials 0.000 claims abstract description 25
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 25
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 25
- 239000011787 zinc oxide Substances 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims description 72
- 239000002245 particle Substances 0.000 claims description 61
- 238000000498 ball milling Methods 0.000 claims description 48
- 239000011812 mixed powder Substances 0.000 claims description 45
- 238000000227 grinding Methods 0.000 claims description 36
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 25
- 238000002844 melting Methods 0.000 claims description 25
- 230000008018 melting Effects 0.000 claims description 25
- 239000002994 raw material Substances 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 24
- 239000010453 quartz Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000012216 screening Methods 0.000 claims description 22
- 241001070941 Castanea Species 0.000 claims description 21
- 235000014036 Castanea Nutrition 0.000 claims description 21
- 238000011049 filling Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000006060 molten glass Substances 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- -1 Nie pentoxide Chemical compound 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 229910052709 silver Inorganic materials 0.000 abstract description 7
- 239000004332 silver Substances 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000008676 import Effects 0.000 abstract description 2
- 238000004017 vitrification Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 14
- 239000008367 deionised water Substances 0.000 description 10
- 229910021641 deionized water Inorganic materials 0.000 description 10
- 235000006667 Aleurites moluccana Nutrition 0.000 description 2
- 240000004957 Castanea mollissima Species 0.000 description 2
- 235000018244 Castanea mollissima Nutrition 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
Abstract
The invention discloses lead-free and bismuth-free glass powder for a crystalline silicon solar cell, which comprises silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. Compared with the prior art, the glass powder for the front silver paste prepared by the invention has the advantages of low series resistance, high parallel resistance, large short-circuit current, high open-circuit voltage, proper vitrification temperature, small thermal expansion coefficient, high adhesive force, small leakage current and high photoelectric conversion efficiency, is aged for 1000 hours in an environment with relative humidity of more than or equal to 96% RH at 120 ℃, and the silver layer does not bulge, fall off or crack, and the prepared glass powder can effectively replace import and break through foreign technical monopoly.
Description
Technical Field
The invention belongs to the technical field of solar cells, and particularly relates to lead-free and bismuth-free glass powder for a crystalline silicon solar cell and a preparation method thereof.
Background
With the increasing environmental pollution, destruction of ecological environment and exhaustion of resources, solar cell power generation, also called photovoltaic power generation, is attracting attention as an optimal alternative energy. Among them, the crystalline silicon solar cell is a leading force of the solar cell market at present due to its relatively high conversion efficiency and stable structure. The conductive paste is used as an electrode material of the solar cell, is responsible for collecting photo-generated carriers of the solar cell, and is a key material for producing the solar cell. The front silver paste is a key material of the solar cell and determines the conversion efficiency of solar energy. The glass powder plays a vital role in the contact forming process, silver and a main body achieve ohmic contact through etching through the anti-reflection film, the temperature required by sintering of silver powder particles is reduced, and the function of adhesion of grid lines and silicon is promoted. Therefore, the preparation of the green lead-free bismuth-free positive silver glass powder with low melting point and high conversion efficiency is very important.
Disclosure of Invention
The invention provides lead-free and bismuth-free glass powder for a crystalline silicon solar cell, which comprises silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder.
Further, the raw materials comprise, by weight, 20-35 parts of silicon oxide, 1-5 parts of tin oxide, 1-10 parts of Nie pentoxide, 10-20 parts of barium oxide, 5-20 parts of boron oxide, 5-15 parts of zinc oxide, 1-5 parts of phosphorus pentoxide and 5-10 parts of corncob powder.
Further, the corncob powder is replaced by corncob powder and Chinese chestnut shell powder, and the mass ratio of the corncob powder to the Chinese chestnut shell powder is as follows: chestnut shell powder =1: 1-4.
Furthermore, the corncob powder and the chestnut shell powder are sieving powder with a sieve with the mesh number of 300-500 meshes.
The invention also discloses a preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell, which comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass;
(4) pouring the glass liquid into pure water, and performing water quenching to prepare glass particles;
(5) drying the glass particles, adding the dried glass particles into a ball milling tank, and adding grinding balls and a dispersing agent for ball milling;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying to remove the dispersing agent, crushing the obtained powder, and sieving by using a 2500-mesh screen to obtain the dry glass powder.
Further, the melting temperature of melting in the step (3) is 800-1500 ℃, and the heat preservation time is 1-2 h.
Further, in the step (5), the ratio of the grinding balls to the glass particles to the dispersing agent is grinding ball: glass particles: the dispersing agent = 5-10: 1:1, the ball milling speed is 20-24 r/min, and the ball milling time is 6-24 h.
Further, the dispersant is isopropanol.
Therefore, the beneficial effects of the invention are as follows: compared with the prior art, the glass powder for the front silver paste prepared by the invention has the advantages of low series resistance, high parallel resistance, large short-circuit current, high open-circuit voltage, proper vitrification temperature, small thermal expansion coefficient, high adhesive force, small leakage current and high photoelectric conversion efficiency, is aged for 1000 hours in an environment with relative humidity of more than or equal to 96% RH at 120 ℃, and the silver layer does not bulge, fall off or crack, and the prepared glass powder can effectively replace import and break through foreign technical monopoly.
Detailed Description
The following is a detailed description with reference to examples:
example 1
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 22 parts of silicon oxide, 3 parts of tin oxide, 6 parts of Nie pentoxide, 14 parts of barium oxide, 9 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 6 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 900 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 180 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Example 2
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 25 parts of silicon oxide, 4 parts of tin oxide, 3 parts of Nie pentoxide, 10 parts of barium oxide, 6 parts of boron oxide, 8 parts of zinc oxide, 2 parts of phosphorus pentoxide and 8 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 1200 ℃, and the heat preservation time is 1 h;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 150 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =8:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Example 3
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 30 parts of silicon oxide, 1 part of tin oxide, 6 parts of Nie pentoxide, 12 parts of barium oxide, 10 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 5 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 1100 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 150 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =9:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Example 4
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 26 parts of silicon oxide, 3 parts of tin oxide, 5 parts of Nie pentoxide, 10 parts of barium oxide, 15 parts of boron oxide, 10 parts of zinc oxide, 2 parts of phosphorus pentoxide and 6 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 1300 ℃, and the heat preservation time is 1 h;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 150 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =8:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Example 5
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 22 parts of silicon oxide, 4 parts of tin oxide, 6 parts of Nie pentoxide, 15 parts of barium oxide, 15 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 6 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 1200 ℃, and the heat preservation time is 1 h;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 140 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the ratio of the grinding balls to the glass particles to the dispersing agent is grinding ball: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Example 6
A lead-free and bismuth-free glass powder for a crystalline silicon solar cell is prepared from silicon oxide, tin oxide, phosphorus pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder. The raw materials comprise, by weight, 23 parts of silicon oxide, 5 parts of tin oxide, 3 parts of Nie pentoxide, 18 parts of barium oxide, 12 parts of boron oxide, 12 parts of zinc oxide, 1 part of phosphorus pentoxide and 5 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the lead-free and bismuth-free glass powder for the crystalline silicon solar cell comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 1300 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 160 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =8:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder.
Comparative example 1
A glass powder is prepared from silicon oxide, tin oxide, Nie pentoxide, barium oxide, boron oxide, zinc oxide and corncob powder. The raw materials comprise, by weight, 22 parts of silicon oxide, 3 parts of tin oxide, 6 parts of Nie pentoxide, 14 parts of barium oxide, 9 parts of boron oxide, 10 parts of zinc oxide and 6 parts of corncob powder. Wherein the corncob powder is a sieved powder with a 300 mesh sieve.
The preparation method of the glass powder comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 900 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 180 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder of the comparative example.
Comparative example 2
A glass powder is prepared from silicon oxide, tin oxide, Nie pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and mixed powder of corncob and chestnut shell. The raw materials comprise, by weight, 22 parts of silicon oxide, 3 parts of tin oxide, 6 parts of Nie pentoxide, 14 parts of barium oxide, 9 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 6 parts of corncob-chestnut shell mixed powder. Wherein the corncob-chestnut shell mixed powder is corncob powder and chestnut shell powder according to the mass ratio of the corncob powder to the chestnut shell powder: the chestnut shell powder =1:1, and the corncob powder and the chestnut shell powder are sieved powder with a 300-mesh sieve.
The preparation method of the glass powder comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 900 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 180 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder of the comparative example.
Comparative example 3
A glass powder is prepared from silicon oxide, tin oxide, Nie pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and mixed powder of corncob and chestnut shell. The raw materials comprise, by weight, 22 parts of silicon oxide, 3 parts of tin oxide, 6 parts of Nie pentoxide, 14 parts of barium oxide, 9 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 6 parts of corncob-chestnut shell mixed powder. Wherein the corncob-chestnut shell mixed powder is corncob powder and chestnut shell powder according to the mass ratio of the corncob powder to the chestnut shell powder: the chestnut shell powder =1:2, and the corncob powder and the chestnut shell powder are sieved powder with a 300-mesh sieve.
The preparation method of the glass powder comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 900 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 180 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder of the comparative example.
Comparative example 4
A glass powder is prepared from silicon oxide, tin oxide, Nie pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and mixed powder of corncob and chestnut shell. The raw materials comprise, by weight, 22 parts of silicon oxide, 3 parts of tin oxide, 6 parts of Nie pentoxide, 14 parts of barium oxide, 9 parts of boron oxide, 10 parts of zinc oxide, 3 parts of phosphorus pentoxide and 6 parts of corncob-chestnut shell mixed powder. Wherein the corncob-chestnut shell mixed powder is corncob powder and chestnut shell powder according to the mass ratio of the corncob powder to the chestnut shell powder: the chestnut shell powder =1:4, and the corncob powder and the chestnut shell powder are sieved powder with a 300-mesh sieve.
The preparation method of the glass powder comprises the following steps:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass, wherein the melting temperature of the melting is 900 ℃, and the heat preservation time is 2 hours;
(4) pouring the glass liquid into deionized water after the heat preservation is finished, and performing water quenching to prepare glass particles;
(5) drying the glass particles at 180 ℃, adding the glass particles into a ball milling tank, adding grinding balls and a dispersing agent for ball milling, wherein the grinding balls, the glass particles and the dispersing agent are in a ratio of grinding balls by mass: glass particles: the dispersing agent =7:1:1, the ball milling speed is 24 r/min, and the ball milling time is 20 h; wherein the dispersant is isopropanol;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying the screened powder to remove the dispersing agent to obtain powder, crushing the powder, and screening the powder by using a 2500-mesh screen to obtain the dry glass powder of the comparative example.
Example 7
The glass transition temperature of the glass powder prepared by the methods of examples 1 to 6 and comparative examples 1 to 4 was measured, and the photoelectric conversion rate of the glass powder prepared by the methods of examples and comparative examples was measured by preparing the product, respectively, and the results are shown in table 1.
TABLE 1
| Test group | Photoelectric conversion efficiency (%) | Glass transition temperature (. degree. C.) |
| Example 1 | 23.15 | 270 |
| Example 2 | 23.12 | 276 |
| Example 3 | 23.06 | 266 |
| Example 4 | 23.02 | 305 |
| Example 5 | 22.98 | 285 |
| Example 6 | 22.99 | 296 |
| Comparative example 1 | 22.97 | 365 |
| Comparative example 2 | 33.51 | 274 |
| Comparative example 3 | 36.15 | 271 |
| Comparative example 4 | 36.02 | 277 |
The technical solutions provided by the present invention are described in detail above, and for those skilled in the art, the ideas according to the embodiments of the present invention may be changed in the specific implementation manners and the application ranges, and in summary, the content of the present description should not be construed as limiting the present invention.
Claims (8)
1. The lead-free and bismuth-free glass powder for the crystalline silicon solar cell is characterized in that the raw material for manufacturing the lead-free and bismuth-free glass powder comprises silicon oxide, tin oxide, Nie pentoxide, barium oxide, boron oxide, zinc oxide, phosphorus pentoxide and corncob powder.
2. The lead-free and bismuth-free glass powder for the crystalline silicon solar cell as claimed in claim 1, wherein the raw materials comprise, by weight, 20-35 parts of silicon oxide, 1-5 parts of tin oxide, 1-10 parts of diimonium pentoxide, 10-20 parts of barium oxide, 5-20 parts of boron oxide, 5-15 parts of zinc oxide, 1-5 parts of diphosphorus pentoxide and 5-10 parts of corncob powder.
3. The lead-free and bismuth-free glass powder for the crystalline silicon solar cell as claimed in claim 1, wherein the corncob powder is replaced by corncob powder and chestnut shell powder, and the mass ratio of the corncob powder to the chestnut shell powder is: chestnut shell powder =1: 1-4.
4. The lead-free and bismuth-free glass powder for the crystalline silicon solar cell as claimed in claim 3, wherein the corncob powder and the chestnut shell powder are sieving powders with a sieve mesh of 300-500 meshes.
5. The method for producing a glass frit according to any one of claims 1 to 4, comprising the steps of:
(1) weighing the components according to the weight fraction ratio of the raw materials;
(2) adding the components into a mixer, uniformly mixing to obtain mixed powder, and filling the mixed powder into a quartz crucible;
(3) putting the quartz crucible filled with the mixed powder into a muffle furnace to be melted into molten glass;
(4) pouring the glass liquid into pure water, and performing water quenching to prepare glass particles;
(5) drying the glass particles, adding the dried glass particles into a ball milling tank, and adding grinding balls and a dispersing agent for ball milling;
(6) and screening the mixture of the ball-milled glass powder and the dispersing agent by using a 500-mesh screen, drying to remove the dispersing agent, crushing the obtained powder, and sieving by using a 2500-mesh screen to obtain the dry glass powder.
6. The method for preparing glass powder according to claim 5, wherein the melting temperature for melting in the step (3) is 800-1500 ℃, and the holding time is 1-2 h.
7. The method for preparing glass powder according to claim 5, wherein in the step (5), the ratio of the grinding balls to the glass particles to the dispersing agent is grinding ball: glass particles: the dispersing agent = 5-10: 1:1, the ball milling speed is 20-24 r/min, and the ball milling time is 6-24 h.
8. The method according to claim 5, wherein the dispersant is isopropyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485593.5A CN113087401A (en) | 2021-04-30 | 2021-04-30 | Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485593.5A CN113087401A (en) | 2021-04-30 | 2021-04-30 | Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113087401A true CN113087401A (en) | 2021-07-09 |
Family
ID=76681168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110485593.5A Pending CN113087401A (en) | 2021-04-30 | 2021-04-30 | Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113087401A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07118060A (en) * | 1993-08-24 | 1995-05-09 | Nippon Electric Glass Co Ltd | High-dielectric constant glass ceramic |
| JP2014026800A (en) * | 2012-07-26 | 2014-02-06 | Nippon Electric Glass Co Ltd | Seal material for solid oxide fuel cell |
| US20140239238A1 (en) * | 2011-09-29 | 2014-08-28 | Noritake Co., Limited | Lead-free conductive paste composition for solar cells |
| CN105590663A (en) * | 2016-01-07 | 2016-05-18 | 清华大学 | Lead-free and bismuth-free conductive silver paste, preparation method of silver grid line, and silicon solar cell |
| CN108314329A (en) * | 2018-02-28 | 2018-07-24 | 西安欣贝电子科技有限公司 | Acidproof lead free and cadmium free glasses powder of low temperature containing niobium and preparation method thereof |
| CN110021450A (en) * | 2019-04-17 | 2019-07-16 | 北京大学深圳研究生院 | A kind of lead-free glass powder being used to prepare silver paste of solar cells and its application |
| CN110372220A (en) * | 2019-08-16 | 2019-10-25 | 西北大学 | A kind of Bi base lead-free glass powder and its preparation method and application |
| CN112159111A (en) * | 2020-08-28 | 2021-01-01 | 江苏国瓷泓源光电科技有限公司 | Lead-free and bismuth-free glass powder for PERC solar cell aluminum paste and preparation method thereof |
-
2021
- 2021-04-30 CN CN202110485593.5A patent/CN113087401A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07118060A (en) * | 1993-08-24 | 1995-05-09 | Nippon Electric Glass Co Ltd | High-dielectric constant glass ceramic |
| US20140239238A1 (en) * | 2011-09-29 | 2014-08-28 | Noritake Co., Limited | Lead-free conductive paste composition for solar cells |
| JP2014026800A (en) * | 2012-07-26 | 2014-02-06 | Nippon Electric Glass Co Ltd | Seal material for solid oxide fuel cell |
| CN105590663A (en) * | 2016-01-07 | 2016-05-18 | 清华大学 | Lead-free and bismuth-free conductive silver paste, preparation method of silver grid line, and silicon solar cell |
| CN108314329A (en) * | 2018-02-28 | 2018-07-24 | 西安欣贝电子科技有限公司 | Acidproof lead free and cadmium free glasses powder of low temperature containing niobium and preparation method thereof |
| CN110021450A (en) * | 2019-04-17 | 2019-07-16 | 北京大学深圳研究生院 | A kind of lead-free glass powder being used to prepare silver paste of solar cells and its application |
| CN110372220A (en) * | 2019-08-16 | 2019-10-25 | 西北大学 | A kind of Bi base lead-free glass powder and its preparation method and application |
| CN112159111A (en) * | 2020-08-28 | 2021-01-01 | 江苏国瓷泓源光电科技有限公司 | Lead-free and bismuth-free glass powder for PERC solar cell aluminum paste and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107721183B (en) | A kind of two-sided PERC back of solar cell electrode slurry glass powder and preparation method thereof | |
| CN101271928B (en) | Method for producing high-viscosity solar cell front side silver paste and the same | |
| CN102126829B (en) | Lead-free glass powder, preparation method thereof, silver paste containing glass powder and crystal silicon solar cell manufactured by using silver paste | |
| CN103915127B (en) | Front silver paste for high sheet resistance silicon-based solar cell and preparing method of front silver paste | |
| US20220153627A1 (en) | Glass powder and silver-aluminum paste for use on front of n-type double-sided solar cell comprising same | |
| CN106477897A (en) | Glass dust and apply this glass dust be obtained anelectrode silver paste, solaode | |
| US11756699B1 (en) | Conductive silver aluminum paste, preparation method, electrode and cell | |
| CN112592068B (en) | Glass powder, preparation method thereof and application of glass powder in TOPCon battery | |
| CN109659064B (en) | Front silver paste with high tensile force for crystalline silicon Perc battery and preparation process thereof | |
| CN102910828B (en) | Low-melting point glass powder for silver pastes on fronts of silicon solar cells and preparation method of glass powder | |
| CN109180008B (en) | Low-temperature glass powder, preparation method thereof and front electrode silver paste containing glass powder | |
| CN114315159B (en) | Glass powder for TOPCON battery main gate electrode silver paste, and preparation method and application thereof | |
| CN110407467B (en) | Electronic glass powder for solar crystalline silicon battery front silver paste and preparation method thereof | |
| KR20110074392A (en) | Paste composition for front electrode of high-efficiency silicon solar cell and silicon solar cell comprising the same | |
| CN113035975A (en) | Glass powder and preparation method thereof, conductive silver paste and preparation method and application thereof | |
| CN110364286A (en) | A kind of two-sided PERC cell backside electrode silver plasm of monocrystalline and preparation method thereof | |
| CN104176939A (en) | Superfine lead-free glass powder for electrode slurry of solar battery, and preparation method thereof | |
| CN109119181B (en) | Front silver paste for crystalline silicon solar cell and preparation method and application thereof | |
| KR20190028038A (en) | Paste composition of solar cell front electrode and manufacturing method thereof | |
| WO2020024253A1 (en) | Slurry for perc cell and method for preparing said slurry | |
| CN105118873A (en) | Front electrode silver paste of crystalline silicon solar battery | |
| CN109493993B (en) | Silver paste for front electrode of crystalline silicon solar cell and preparation method thereof | |
| CN113087401A (en) | Lead-free bismuth-free glass powder for crystalline silicon solar cell and preparation method thereof | |
| CN105084766A (en) | Low-melting glass powder of crystalline silicon solar energy battery front side silver paste and preparation method thereof | |
| US11802075B2 (en) | Lithium and tellurium-silicate binary glass-oxide-complex system and conductive paste containing such complex system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210709 |