CN102938260A - Solar energy electrical conduction slurry and preparation method thereof - Google Patents
Solar energy electrical conduction slurry and preparation method thereof Download PDFInfo
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- CN102938260A CN102938260A CN2012104567290A CN201210456729A CN102938260A CN 102938260 A CN102938260 A CN 102938260A CN 2012104567290 A CN2012104567290 A CN 2012104567290A CN 201210456729 A CN201210456729 A CN 201210456729A CN 102938260 A CN102938260 A CN 102938260A
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Abstract
The invention discloses solar energy electrical conduction slurry and a preparation method thereof. The slurry comprises, by weight, 70-80 parts of aluminium powder, 9-25 parts of an organic bonding agent, 2-8 parts of a glass binder, 0.02-5 parts of a silane coupling agent and 0-2.5 parts of a dispersing agent. The technical scheme includes that lead is not included, good electrical conductivity, weather resistance performance and chemical resistance are provided, the photoelectric conversion efficiency of a battery is high, and the low warp performance is good.
Description
Technical field
The present invention relates to battery aluminium paste technical field, specifically a kind of solar energy electrocondution slurry and preparation method thereof.
Background technology
Solar cell is a kind of semiconductor device that solar energy is converted to electric energy, and inside solar energy battery can produce photogenerated current under illumination condition, electric energy can be exported by electrode.
Existing silica-based solar cell generally is printed on the silicon substrate by the electrocondution slurry that will contain conductive metal powder, glass dust and organic carrier, carries out drying and fires the preparation electrode.The front electrode of solar cell silicon substrate is generally negative pole, and the electrocondution slurry of coating is generally conductive silver paste; Backplate is generally positive pole, and the electrocondution slurry of coating is generally conducting aluminum paste.
Conducting aluminum paste has a great impact the performance of solar cell.At present the research of conductive aluminum slurry mainly concentrated on: (1) improves the photoelectric conversion efficiency of solar cell; (2) the aluminium film to the silicon substrate firm adhesion, does not namely play aluminium pill, non-foaming behind the sintering behind sintering; (3) reduce as far as possible bending behind the silicon chip sintering.In present aluminium paste technology, still there is bending to a certain degree in the silicon chip behind the sintering.
Summary of the invention
The object of the present invention is to provide a kind of solar energy electrocondution slurry and preparation method thereof.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of solar energy electrocondution slurry is characterized in that the weight portion of its constitutive material is: 70 ~ 80 parts of aluminium powders, 9 ~ 25 parts of organic bonds, 2 ~ 8 parts of glass binders, 0.02 ~ 5 part of silane coupler, 0 ~ 2.5 part of dispersant.
The weight portion of the component prescription of described organic bond is 10 ~ 30 parts of ethyl celluloses, 1 ~ 5 part in turpentine oil, 20 ~ 35 parts of dibutyl phthalates, 5 ~ 20 parts of acrylic resins.
Described glass binder is 0 ~ 30 part of silica 1,2 ~ 10 parts in aluminium oxide, 0.05 ~ 3 part of bismuth oxide, 1 ~ 4 part in zinc oxide, 10 ~ 20 parts in calcium oxide.
The purity of described aluminium powder is more than 99%, and the particle diameter of described aluminum particle is 2 ~ 5 μ m.
A kind of preparation method of solar energy electrocondution slurry is characterized in that may further comprise the steps:
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, dissolves under 60 ~ 100 ℃ of temperature, obtains organic bond;
(2) preparation glass binder, according to the prescription of above-mentioned glass binder, take by weighing each oxide powder, mix, pack in the crucible, put into high temperature resistance furnace, be warming up to 1000 ~ 1200 ℃, melting 30 ~ 60min, with the ball grinder ball milling of packing into after the glass quenching after melting, behind the ball milling 30 hours, obtain granularity less than the glass dust of 3 μ m, dry for standby;
(3) the preparation electrocondution slurry is got aluminium powder, organic bond, glass binder, silane coupler, dispersant by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Beneficial effect of the present invention: technical scheme of the present invention is not leaded, and safety and environmental protection has good conductivity, weatherability and chemical-resistance, and the photoelectric conversion efficiency of battery is high, have good low warpage properties.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, takes by weighing 20 parts of 1 part in 12 parts of ethyl celluloses, turpentine oil, dibutyl phthalates, 10 parts of the acrylic resins of weight portion, dissolves under 80 ℃ of temperature, obtains organic bond;
(2) the preparation glass binder according to the prescription of above-mentioned glass binder, takes by weighing each oxide powder of weight portion, 0 part of silica 1,5 parts in aluminium oxide, 1 part of bismuth oxide, 2 parts in zinc oxide, 10 parts in calcium oxide, mix, in the crucible of packing into, put into high temperature resistance furnace, be warming up to 1050 ℃, melting 50min, with the ball grinder ball milling of packing into after the glass quenching after melting, ball milling is after 30 hours, obtain glass binder, dry for standby;
(3) the preparation electrocondution slurry is got 75 parts of aluminium powders, 9 parts of organic bonds, 5 parts of glass binders, 1.5 parts of silane couplers, 0.5 part of dispersant by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Embodiment 2
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, takes by weighing 30 parts of 4 parts in 25 parts of ethyl celluloses, turpentine oil, dibutyl phthalates, 15 parts of the acrylic resins of weight portion, dissolves under 60 ℃ of temperature, obtains organic bond;
(2) the preparation glass binder according to the prescription of above-mentioned glass binder, takes by weighing each oxide powder of weight portion, 30 parts of silicon dioxide, 2 parts in aluminium oxide, 0.05 part of bismuth oxide, 4 parts in zinc oxide, 20 parts in calcium oxide, mix, in the crucible of packing into, put into high temperature resistance furnace, be warming up to 1200 ℃, melting 35min, with the ball grinder ball milling of packing into after the glass quenching after melting, ball milling is after 30 hours, obtain glass binder, dry for standby;
(3) the preparation electrocondution slurry is got 80 parts of aluminium powders, 25 parts of organic bonds, 8 parts of glass binders, 0.02 part of silane coupler, 1 part of dispersant by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Embodiment 3
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, takes by weighing 25 parts of 3 parts in 20 parts of ethyl celluloses, turpentine oil, dibutyl phthalates, 5 parts of the acrylic resins of weight portion, dissolves under 70 ℃ of temperature, obtains organic bond;
(2) the preparation glass binder according to the prescription of above-mentioned glass binder, takes by weighing each oxide powder of weight portion, 20 parts of silicon dioxide, 10 parts in aluminium oxide, 3 parts of bismuth oxides, 2 parts in zinc oxide, 15 parts in calcium oxide, mix, in the crucible of packing into, put into high temperature resistance furnace, be warming up to 1080 ℃, melting 60min, with the ball grinder ball milling of packing into after the glass quenching after melting, ball milling is after 30 hours, obtain glass binder, dry for standby;
(3) the preparation electrocondution slurry is got 72 parts of aluminium powders, 15 parts of organic bonds, 6 parts of glass binders, 3 parts of silane couplers, 2 parts of dispersants by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Embodiment 4
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, takes by weighing 35 parts of 2 parts in 30 parts of ethyl celluloses, turpentine oil, dibutyl phthalates, 20 parts of the acrylic resins of weight portion, dissolves under 100 ℃ of temperature, obtains organic bond;
(2) the preparation glass binder according to the prescription of above-mentioned glass binder, takes by weighing each oxide powder of weight portion, 20 parts of silicon dioxide, 8 parts in aluminium oxide, 2.5 parts of bismuth oxides, 4 parts in zinc oxide, 18 parts in calcium oxide, mix, in the crucible of packing into, put into high temperature resistance furnace, be warming up to 1000 ℃, melting 55min, with the ball grinder ball milling of packing into after the glass quenching after melting, ball milling is after 30 hours, obtain glass binder, dry for standby;
(3) the preparation electrocondution slurry is got 77 parts of aluminium powders, 20 parts of organic bonds, 8 parts of glass binders, 3.5 parts of silane couplers by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Embodiment 5
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, takes by weighing 32 parts of 5 parts in 15 parts of ethyl celluloses, turpentine oil, dibutyl phthalates, 20 parts of the acrylic resins of weight portion, dissolves under 90 ℃ of temperature, obtains organic bond;
(2) the preparation glass binder according to the prescription of above-mentioned glass binder, takes by weighing each oxide powder of weight portion, 26 parts of silicon dioxide, 9 parts in aluminium oxide, 2 parts of bismuth oxides, 4 parts in zinc oxide, 12 parts in calcium oxide, mix, in the crucible of packing into, put into high temperature resistance furnace, be warming up to 1150 ℃, melting 40min, with the ball grinder ball milling of packing into after the glass quenching after melting, ball milling is after 30 hours, obtain glass binder, dry for standby;
(3) the preparation electrocondution slurry is got 70 parts of aluminium powders, 15 parts of organic bonds, 8 parts of glass binders, 4 parts of silane couplers, 2 parts of dispersants by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
Claims (5)
1. a solar energy electrocondution slurry is characterized in that the weight portion of its constitutive material is: 70 ~ 80 parts of aluminium powders, 9 ~ 25 parts of organic bonds, 2 ~ 8 parts of glass binders, 0.02 ~ 5 part of silane coupler, 0 ~ 2.5 part of dispersant.
2. solar energy electrocondution slurry according to claim 1, the weight portion that it is characterized in that the component prescription of described organic bond is 10 ~ 30 parts of ethyl celluloses, 1 ~ 5 part in turpentine oil, 20 ~ 35 parts of dibutyl phthalates, 5 ~ 20 parts of acrylic resins.
3. solar energy electrocondution slurry according to claim 1 and 2 is characterized in that described glass binder is 0 ~ 30 part of silica 1,2 ~ 10 parts in aluminium oxide, 0.05 ~ 3 part of bismuth oxide, 1 ~ 4 part in zinc oxide, 10 ~ 20 parts in calcium oxide.
4. solar energy electrocondution slurry according to claim 1 and 2, the purity that it is characterized in that described aluminium powder is more than 99%, the particle diameter of described aluminum particle is 2 ~ 5 μ m.
5. the preparation method of a solar energy electrocondution slurry is characterized in that may further comprise the steps:
(1) the preparation organic bond according to the prescription of above-mentioned organic bond, dissolves under 60 ~ 100 ℃ of temperature, obtains organic bond;
(2) preparation glass binder, according to the prescription of above-mentioned glass binder, take by weighing each oxide powder, mix, pack in the crucible, put into high temperature resistance furnace, be warming up to 1000 ~ 1200 ℃, melting 30 ~ 60min, with the ball grinder ball milling of packing into after the glass quenching after melting, behind the ball milling 30 hours, obtain granularity less than the glass dust of 3 μ m, dry for standby;
(3) the preparation electrocondution slurry is got aluminium powder, organic bond, glass binder, silane coupler, dispersant by the weight portion of above-mentioned prescription, and after mixing, grinding distribution makes homodisperse electrocondution slurry.
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| CN2012104567290A CN102938260A (en) | 2012-11-14 | 2012-11-14 | Solar energy electrical conduction slurry and preparation method thereof |
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| CN2012104567290A CN102938260A (en) | 2012-11-14 | 2012-11-14 | Solar energy electrical conduction slurry and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632590A (en) * | 2016-03-18 | 2016-06-01 | 苏州开元民生科技股份有限公司 | Crystal silicon solar cell aluminum paste and preparation method therefor |
| CN106601335A (en) * | 2016-12-30 | 2017-04-26 | 无锡帝科电子材料科技有限公司 | Paste composition for preparing solar cell electrode, solar cell electrode and solar cell |
| CN107274961A (en) * | 2017-05-18 | 2017-10-20 | 江苏东昇光伏科技有限公司 | A kind of aluminum slurry used for solar batteries and preparation method thereof |
| CN109898081A (en) * | 2019-04-11 | 2019-06-18 | 陈国龙 | A kind of low temperature preparation method of the compound silica fibre of Al base of micro- radial strain |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05298917A (en) * | 1992-04-20 | 1993-11-12 | Okuno Chem Ind Co Ltd | Composition for conductive aluminum paste |
| CN102314958A (en) * | 2011-08-31 | 2012-01-11 | 乐凯胶片股份有限公司 | Conductive aluminum paste used for crystalline-silicon solar-battery back electrode and preparation method thereof |
-
2012
- 2012-11-14 CN CN2012104567290A patent/CN102938260A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05298917A (en) * | 1992-04-20 | 1993-11-12 | Okuno Chem Ind Co Ltd | Composition for conductive aluminum paste |
| CN102314958A (en) * | 2011-08-31 | 2012-01-11 | 乐凯胶片股份有限公司 | Conductive aluminum paste used for crystalline-silicon solar-battery back electrode and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632590A (en) * | 2016-03-18 | 2016-06-01 | 苏州开元民生科技股份有限公司 | Crystal silicon solar cell aluminum paste and preparation method therefor |
| CN106601335A (en) * | 2016-12-30 | 2017-04-26 | 无锡帝科电子材料科技有限公司 | Paste composition for preparing solar cell electrode, solar cell electrode and solar cell |
| CN107274961A (en) * | 2017-05-18 | 2017-10-20 | 江苏东昇光伏科技有限公司 | A kind of aluminum slurry used for solar batteries and preparation method thereof |
| CN109898081A (en) * | 2019-04-11 | 2019-06-18 | 陈国龙 | A kind of low temperature preparation method of the compound silica fibre of Al base of micro- radial strain |
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Application publication date: 20130220 |