CN107673601B - A kind of PERC aluminium paste glass powder and preparation method thereof - Google Patents
A kind of PERC aluminium paste glass powder and preparation method thereof Download PDFInfo
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- CN107673601B CN107673601B CN201710752319.3A CN201710752319A CN107673601B CN 107673601 B CN107673601 B CN 107673601B CN 201710752319 A CN201710752319 A CN 201710752319A CN 107673601 B CN107673601 B CN 107673601B
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- glass powder
- aluminium paste
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- perc aluminium
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- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
Abstract
The invention discloses a kind of PERC aluminium paste glass powders, are mainly made of the raw material of following mass percentage: B2O310~40%, SiO20~10%, ZnO 5~30%, BaO 5~30%, CaO 5~30%, TiO21~10%, V2O51~20%, K2O 1~10%, La2O30.1~1%.The glass powder applies the corrosion that can be reduced under aluminium paste high temperature to passivation film in PERC aluminium paste, while the alloy of partial contact zones being promoted to be formed.The invention also discloses the preparation methods of above-mentioned PERC aluminium paste glass powder.
Description
Technical field
The invention belongs to rear surface of solar cell electrode slurry technical fields, and in particular to a kind of PERC aluminium paste glass powder
And preparation method thereof.
Background technique
Crystal silicon solar PERC battery technology is to utilize SiNx and Al2O3Passivation layer is formed in cell backside, by laser
Local corrosion passivation layer.The passivation layer can reduce the defect of silicon face, increase the service life of minority carrier, while increase the back side
Long wave reflecting effect increases the absorption of incident light.Relative to conventional solar battery, the Voc and Isc of PERC battery have bright
Aobvious advantage, incident photon-to-electron conversion efficiency are higher.
The main constituents of PERC cell aluminum paste have aluminium powder, inorganic binder, organic bond and other additives, with
Unlike conventional aluminium paste, aluminium pasc reaction and contact only are formed in regional area after the sintering of PERC aluminium paste.PERC aluminium paste is made
It is required with glass powder: passivation film not being damaged as far as possible, do not influence battery opens pressure and short stream；Aluminium silicon can be promoted anti-
It answers, forms alloy and reduce cavity.
CN201510381801 patent gives a kind of glass powder that can be applicable in PERC cell aluminum paste, designs in patent
By in Bi2O3-ZnO-B2O3-SiO2MgO and CaO is added in system and promotes corrosion of the glass powder to alumina particles surface oxide layer,
BeO, which is added, can hinder destruction of the glass powder to passivation layer, and La is added2O3It can promote the formation of needle-shaped alusil alloy, but described special
The promotion degree of unit for electrical property parameters and overall performance is not specifically given in benefit.
CN201610535116 patent is with component are as follows: Bi2O3: 10-20 parts, B2O3: 15-25 parts, SiO2: 2-4 parts, PbO:
20-70 parts, ZnO:1-15 parts of proportion glass powder be applied in PERC cell aluminum paste, prepared aluminium paste is to Damage of Passive Film
Small, BSF layers of uniform and fine and close, local filling extent height, volume production average efficiency has a certain upgrade up to 20.7%, but passes through glass
Powder optimization efficiency is promoted higher.
It is obviously improved in the relatively conventional battery efficiency of PERC battery, but also by back field aluminum paste raising efficiency space
It is very big.Glass powder advanced optimizes the destruction that can be effectively reduced aluminium paste sintering to passivating film, more preferable to play PREC battery efficiency
Upper advantage.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of PERC aluminium paste glass powder, which is applied in PERC
The corrosion under aluminium paste high temperature to passivation film can be reduced in aluminium paste, while the alloy of partial contact zones being promoted to be formed.
The technical problems to be solved by the invention, which also reside in, provides the preparation method of above-mentioned PERC aluminium paste glass powder, the system
Preparation Method concise in technology, it is at low cost.
First technical problem to be solved by this invention is achieved through the following technical solutions: a kind of PERC aluminium paste
With glass powder, mainly it is made of the raw material of following mass percentage:
Preferably, PERC aluminium paste glass powder provided by the invention, the mass percentage of each raw material are as follows:
More preferably, PERC aluminium paste glass powder provided by the invention, is made of the raw material of following mass percentage:
BaO of the present invention is preferred from BaCO3Or Ba (OH)2；The CaO is preferred from CaCO3Or Ca (OH)2；
The K2O is preferred from K2CO3。
Hydroxide and carbonate are selected, can first decompose generation at high temperature has higher active oxide gentle
Body, high activity oxide facilitate the progress of reaction, and the gas for decomposing generation, which can play mixing effect, makes system become uniform.
The partial size of glass powder of the present invention is 1.5~4.5 μm, and softening point is 650~750 DEG C.
Second technical problem to be solved by this invention is achieved through the following technical solutions: above-mentioned PERC aluminium
The slurry preparation method of glass powder, comprising the following steps: choose each raw material, mixing, which is placed on melting in Muffle furnace, must refine liquid, refine
It is dry, broken after liquid water quenching, then through ball milling, drying, obtain PERC aluminium paste glass powder.
In the preparation method of the PERC aluminium paste glass powder:
Preferably use V-type batch mixer dry-mixed when mixing, temperature is preferably 900 DEG C~1200 DEG C when melting, and soaking time is excellent
It is selected as 30~90min.
Preferably use deionized water when water quenching, medium is deionized water when ball milling, and Ball-milling Time is 20~48h, after ball milling
Glass paste stand after be separated off upper water, then dried in 110~130 DEG C of baking ovens.
Compared with prior art, the invention has the following advantages:
(1) glass powder feature provided by the invention is that chemical stability is good, softening point is high, and thermal expansion coefficient is low, mobility
It is good；
(2) present invention is with B2O3And SiO2As Network former, glass powder is free of PbO and Bi2O3Component can properly increase
The softening point of glass powder reduces the destruction to passivating film；
(3) BaO plays fluxing action at high temperature in the present invention, reduces the viscosity under glass powder high temperature, improves its flowing
Property, be conducive to the bonding at interface；
(4) CaO and K in the present invention2O can not only play certain fluxing action, while can also reduce the thermal expansion of system
Coefficient；
(5) V in the present invention2O5And TiO2Component can increase the stabilization of glass network structure, and furthermore both substances can be with
Aluminium oxide forms eutectic, the pellumina on alumina particles surface can be promoted to fuse into glass ingredient, La2O3Glass can be improved
Refractive index increases system to the albedo of long wave to a certain extent；
(6) glass powder that needle of the present invention provides is applied in solar PE RC aluminium paste, small to the corrosiveness of passivating film, heat
The coefficient of expansion is more matched with silicon base, can effectively corrode the oxidation film on alumina particles surface, and alusil alloy is promoted to be formed.
Specific embodiment
The present invention is given specific description in each of the embodiments described below.These embodiments be all it is illustrative, not
The limitation present invention in any way.It will be understood by those skilled in the art that without departing from the spirit and scope of the invention
Can with the details and forms of the technical scheme of the invention are modified or replaced, but these modification and replacement each fall within it is of the invention
In protection scope.
Embodiment 1
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method of the PERC aluminium paste glass powder, comprising the following steps: choose each raw material, mixing is placed on Muffle furnace
Middle melting must refine liquid, dry, broken after refining liquid water quenching, then through ball milling, drying, obtain PERC aluminium paste glass powder.
Dry-mixed using V-type batch mixer when wherein mixing, temperature is 900 DEG C~1200 DEG C when melting, soaking time is 30~
90min。
Deionized water is used when water quenching, medium is deionized water when ball milling, and Ball-milling Time is 20~48h, the glass after ball milling
Glass slurry is separated off upper water after standing, and then dries in 110~130 DEG C of baking ovens.
Embodiment 2
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Embodiment 3
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Embodiment 4
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Embodiment 5
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Embodiment 6
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Embodiment 7
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Comparative example 1
PERC aluminium paste glass powder provided in this embodiment, is made of the raw material of following mass percentage:
The preparation method reference implementation example 1 of the PERC aluminium paste glass powder.
Formula in embodiment 1-7 and comparative example 1 is as shown in Table 1 below.
Formula in 1 embodiment 1-7 of table and comparative example
Performance of 8 glass powder of embodiment in aluminium paste
By glass powder, adhesive (acrylic resin, ethyl cellulose resin, fourth in aluminium powder, 1~embodiment of comparative example 1-7
Base carbitol, alcohol ester 12, terpinol etc.), additive (organic dispersing agent, Al alloy powder etc.) mixing after prepare aluminium paste, print
It is sintered in PERC cell backside.
Sintering furnace model Despatch, 760~780 DEG C of true peak temperature.The test method of filling rate is: going power down
The aluminium layer on pond piece surface calculates alloy area in the accounting for entirely opening diaphragm area.
Performance parameter using embodiment 1-7 and the cell piece of the preparation of comparative example 1 is as shown in Table 2 below.
The performance parameter for the cell piece that table 2 is prepared using embodiment 1-7 and comparative example 1
| Filling rate | Voc/mV | Isc/mA | |
| Comparative example 1 | 40% | 660.7 | 9.718 |
| Embodiment 1 | 72% | 661.5 | 9.755 |
| Embodiment 2 | 70% | 661.8 | 9.744 |
| Embodiment 3 | 76% | 662.2 | 9.759 |
| Embodiment 4 | 75% | 662.4 | 9.755 |
| Embodiment 5 | 78% | 662.5 | 9.760 |
| Embodiment 6 | 74% | 662.0 | 9.760 |
| Embodiment 7 | 73% | 661.7 | 9.748 |
With 1 Comparative result of comparative example, Examples 1 to 7 glass powder has biggish promotion to the sintered filling extent of aluminium paste,
And the promotion of Voc and Isc is also significant on unit for electrical property parameters.Glass powder one side softening point in 1-7 of the embodiment of the present invention is high,
The time that corrosion failure occurs after melting is short；It is not easy to have an effect with passivating film in another aspect component, further reduce pair
The destruction of passivating film.Passivation layer, which can play, so preferably inhibits Carrier recombination, and that improves PERC battery opens pressure and short stream.
Embodiments above is served only for that the invention will be further described, does not represent the limit to the scope of the present invention
System.The some nonessential modifications and adjustment that other people make according to the present invention still fall within protection scope of the present invention.
Claims (8)
1. a kind of PERC aluminium paste glass powder, it is characterized in that being made of the raw material of following mass percentage:
B2O3 10~40%
SiO2 0~10%
ZnO 5~30%
BaO 5~30%
CaO 5~30%
TiO2 1~10%
V2O5 1~20%
K2O 1~10%
La2O3 0.1~1%；
The softening point of the glass powder is 650 ~ 750 DEG C.
2. PERC aluminium paste glass powder according to claim 1, it is characterized in that the mass percentage of each raw material are as follows:
B2O3 25~40%
SiO2 2~8%
ZnO 10~30%
BaO 15~30%
CaO 5~15%
TiO2 2~10%
V2O5 2~9%
K2O 1~8%
La2O3 0.5~1.0 %。
3. PERC aluminium paste glass powder according to claim 2, it is characterized in that the mass percentage of each raw material are as follows:
B2O3 25~35%
SiO2 2~3%
ZnO 10~20%
BaO 25~30%
CaO 5~10%
TiO2 7~9%
V2O5 5~8%
K2O 1~3%
La2O3 0.7~0.9%。
4. PERC aluminium paste glass powder according to claim 1-3, it is characterized in that: the BaO comes from BaCO3
Or Ba (OH)2；The CaO comes from CaCO3Or Ca (OH)2；The K2O comes from K2CO3。
5. PERC aluminium paste glass powder according to claim 1-3, it is characterized in that: the partial size of the glass powder is
1.5~4.5μm。
6. the preparation method of PERC aluminium paste glass powder according to claim 1-3, it is characterized in that including following
Step: choosing each raw material, and mixing, which is placed on melting in Muffle furnace, must refine liquid, dry, broken after refining liquid water quenching, then through ball milling, baking
It is dry, obtain PERC aluminium paste glass powder.
7. the preparation method of PERC aluminium paste glass powder according to claim 6, it is characterized in that: mixed using V-type when mixing
Material machine is dry-mixed, and temperature is 900 DEG C ~ 1200 DEG C when melting, and soaking time is 30 ~ 90min.
8. the preparation method of PERC aluminium paste glass powder according to claim 6, it is characterized in that: using deionization when water quenching
Water, medium is deionized water when ball milling, and Ball-milling Time is 20 ~ 48h, and the glass paste after ball milling is separated off upper layer after standing
Then water is dried in 110 ~ 130 DEG C of baking ovens.
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| CN108793756B (en) * | 2018-06-22 | 2021-12-03 | 贵州佰博新材料科技有限公司 | Glass powder for insulating and coating iron-silicon-aluminum magnetic powder core and preparation method thereof |
| CN110423012B (en) * | 2019-08-09 | 2021-12-24 | 江苏国瓷泓源光电科技有限公司 | Glass powder for PERC aluminum paste and preparation method thereof |
| CN110510883B (en) * | 2019-08-16 | 2022-05-03 | 江苏聚盈新材料科技有限公司 | Vanadium-based lead-free glass powder and preparation method and application thereof |
| CN112159111B (en) * | 2020-08-28 | 2022-08-12 | 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 |
| CN112435774B (en) * | 2020-10-21 | 2022-10-04 | 中国电子科技集团公司第十三研究所 | Copper conductor slurry suitable for ceramic packaging shell and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298759A (en) * | 2011-01-13 | 2013-09-11 | 中央硝子株式会社 | Conductive paste and solar battery cell using said conductive paste |
| CN106746686A (en) * | 2017-01-18 | 2017-05-31 | 广州市儒兴科技开发有限公司 | A kind of high temperature resistant aluminium paste glass dust and preparation method thereof |
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- 2017-08-28 CN CN201710752319.3A patent/CN107673601B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298759A (en) * | 2011-01-13 | 2013-09-11 | 中央硝子株式会社 | Conductive paste and solar battery cell using said conductive paste |
| CN106746686A (en) * | 2017-01-18 | 2017-05-31 | 广州市儒兴科技开发有限公司 | A kind of high temperature resistant aluminium paste glass dust and preparation method thereof |
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