CN101814551A - Preparation method of back silver paste of solar cell - Google Patents

Preparation method of back silver paste of solar cell Download PDF

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Publication number
CN101814551A
CN101814551A CN201010022844A CN201010022844A CN101814551A CN 101814551 A CN101814551 A CN 101814551A CN 201010022844 A CN201010022844 A CN 201010022844A CN 201010022844 A CN201010022844 A CN 201010022844A CN 101814551 A CN101814551 A CN 101814551A
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China
Prior art keywords
preparation
silver paste
solar cell
powder
diethylene glycol
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CN201010022844A
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Chinese (zh)
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CN101814551B (en
Inventor
许明勇
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Ningbo's electric Mstar Technology Ltd
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NINGBO JINGXIN ELECTRONIC MATERIAL CO Ltd
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Priority to CN201010022844.8A priority Critical patent/CN101814551B/en
Publication of CN101814551A publication Critical patent/CN101814551A/en
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Publication of CN101814551B publication Critical patent/CN101814551B/en
Expired - Fee Related legal-status Critical Current
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to a preparation method of a back silver paste of a solar cell. The method comprises the following steps: (1) mixing 200CP ethyl cellulose, 300CP ethyl cellulose and diethylene glycol monobutyl ether to obtain an adhesive; (2) mixing flake silver powder and glass powder to obtain a powder body; (3) mixing diethylene glycol monobutyl ether and terpineol to obtain a diluter; and (4) mixing the adhesive and the powder body, adjusting the fineness by utilizing a three-high mill, and adding the diluter to obtain the silver paste. The invention has the advantage of simple method, and is applicable to industrialized production; and the obtained silver paste has the advantages of good compactness of the silver layer, small contact resistance and high cell conversion rate.

Description

The preparation method of back silver paste of solar cell
Technical field
The invention belongs to the preparation field of solar cell size, particularly relate to a kind of preparation method of back silver paste of solar cell.
Background technology
Back silver paste of solar cell is one of important raw and processed materials of solar cell as the back silver slurry of solar cell size, influences the key factor of solar cell power conversion.This slurry mainly contains function phase (silver powder), organic carrier (adhesive), glassy phase three most compositions.
Growing along with green energy resource, the photovoltaic industry is advanced by leaps and bounds, and the development of solar cell industry has welcome unprecedented prospect, and the transfer ratio to solar cell requires also more and more higher simultaneously.The exploitation of Ben Yin slurry is researched and developed the development of silver paste of solar cells both at home and abroad in order to satisfy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method of back silver paste of solar cell, and this method is simple, is suitable for suitability for industrialized production; The silver paste silver layer compactness of gained is good, and contact resistance is little, the cell conversion rate height.
The preparation method of a kind of back silver paste of solar cell of the present invention comprises:
(1) mixes 200CP ethyl cellulose, 300CP ethyl cellulose and diethylene glycol butyl ether, the preparation adhesive;
(2) mix flake silver powder and glass dust, the preparation powder;
(3) mix diethylene glycol butyl ether and terpinol, prepared and diluted agent;
(4) adhesive of mixing 10～20% and 75～85% powder through three-high mill, are adjusted fineness, add 1～5% diluent, promptly obtain silver paste.
The weight ratio of described step (1) 200CP ethyl cellulose, 300CP ethyl cellulose and diethylene glycol butyl ether is 4%～8%: 2%～6%: 70%～90%.
The weight ratio of described step (2) flake silver powder and glass dust is 85%～95%: 5%～15%.
The weight ratio of described step (3) diethylene glycol butyl ether and terpinol is 50%～70%: 30%～50%.
Described step (4) fineness is less than 8 μ m.
Beneficial effect
(1) preparation method of the present invention is simple, is suitable for suitability for industrialized production;
(2) the silver paste silver layer compactness of gained of the present invention is good, and contact resistance is little, the cell conversion rate height.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
(1) mixes 200CP ethyl cellulose 2～4g, 300CP ethyl cellulose 1～3g, diethylene glycol butyl ether 10～30g, prepare bonding system;
(2) mix flake silver powder 70～75g, glass dust 5～10g, the preparation powder, after stirring evenly, ball milling 3-5 hour;
(3) mix diethylene glycol butyl ether 4～8g, terpinol 2～4g, prepared and diluted agent;
(4) mix above-mentioned adhesive and powder, through three-high mill to fineness less than 8 μ m, add diluent, stirred 1 hour, adjust viscosity with the small diluted amount agent, make silver and starch.

Claims (5)

1. the preparation method of a back silver paste of solar cell comprises:
(1) mixes 200CP ethyl cellulose, 300CP ethyl cellulose and diethylene glycol butyl ether, the preparation adhesive;
(2) mix flake silver powder and glass dust, the preparation powder;
(3) mix diethylene glycol butyl ether and terpinol, prepared and diluted agent;
(4) adhesive of mixing 10～20% and 75～85% powder through three-high mill, are adjusted fineness, add 1～5% diluent, promptly obtain silver paste.
2. the preparation method of a kind of back silver paste of solar cell according to claim 1, it is characterized in that: the weight ratio of described step (1) 200CP ethyl cellulose, 300CP ethyl cellulose and diethylene glycol butyl ether is 4%～8%: 2%～6%: 70%～90%.
3. the preparation method of a kind of back silver paste of solar cell according to claim 1, it is characterized in that: the weight ratio of described step (2) flake silver powder and glass dust is 85%～95%: 5%～15%.
4. the preparation method of a kind of back silver paste of solar cell according to claim 1, it is characterized in that: the weight ratio of described step (3) diethylene glycol butyl ether and terpinol is 50%～70%: 30%～50%.
5. the preparation method of a kind of back silver paste of solar cell according to claim 1, it is characterized in that: described step (4) fineness is less than 8 μ m.
CN201010022844.8A 2010-01-15 2010-01-15 The preparation method of back silver paste of solar cell Expired - Fee Related CN101814551B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010022844.8A CN101814551B (en) 2010-01-15 2010-01-15 The preparation method of back silver paste of solar cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010022844.8A CN101814551B (en) 2010-01-15 2010-01-15 The preparation method of back silver paste of solar cell

Publications (2)

Publication Number Publication Date
CN101814551A true CN101814551A (en) 2010-08-25
CN101814551B CN101814551B (en) 2015-08-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360628A (en) * 2011-09-22 2012-02-22 山东省科学院新材料研究所 Method for preparing silver paste used for back electrode of photovoltaic cell
CN102592748A (en) * 2012-02-13 2012-07-18 江苏瑞德新能源科技有限公司 Process for producing silver aluminum slurry for solar energy battery
CN102810344A (en) * 2012-08-03 2012-12-05 江苏欧耐尔新型材料有限公司 Silver-plated copper containing paste for solar cell back electrode and method for preparing silver-plated copper containing paste
CN103617843A (en) * 2013-11-29 2014-03-05 江苏瑞德新能源科技有限公司 Method for producing back silver paste

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877864A (en) * 2006-06-30 2006-12-13 谭富彬 Aluminum back-surface-field conductive paste composition in silicon solar cell and method for preparing same
CN101206957A (en) * 2007-12-07 2008-06-25 宁波晶鑫电子材料有限公司 Preparation of low temperature drying wafer capacitance electrode silver plasm
CN101206958A (en) * 2007-12-07 2008-06-25 宁波晶鑫电子材料有限公司 Preparation of hyperthermia drying wafer capacitance electrode silver plasm
CN101295739A (en) * 2007-04-26 2008-10-29 比亚迪股份有限公司 Conductive slurry for solar battery front side electrode and production method thereof
KR20080099407A (en) * 2007-05-09 2008-11-13 주식회사 동진쎄미켐 Paste for producing electrode of solar cell
CN101345263A (en) * 2008-09-09 2009-01-14 季福根 Leadless electronic slurry composition for solar silicon photovoltaic cell and preparation method thereof
CN101353230A (en) * 2007-07-24 2009-01-28 费罗公司 Ultra low-emissivity (ultra low E) silver coating
US20090101199A1 (en) * 2007-10-18 2009-04-23 E. I. Du Pont De Nemours And Company Conductive compositions and processes for use in the manufacture of semiconductor devices
CN101471389A (en) * 2007-12-25 2009-07-01 国硕科技工业股份有限公司 Solar battery

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877864A (en) * 2006-06-30 2006-12-13 谭富彬 Aluminum back-surface-field conductive paste composition in silicon solar cell and method for preparing same
CN101295739A (en) * 2007-04-26 2008-10-29 比亚迪股份有限公司 Conductive slurry for solar battery front side electrode and production method thereof
KR20080099407A (en) * 2007-05-09 2008-11-13 주식회사 동진쎄미켐 Paste for producing electrode of solar cell
CN101353230A (en) * 2007-07-24 2009-01-28 费罗公司 Ultra low-emissivity (ultra low E) silver coating
US20090101199A1 (en) * 2007-10-18 2009-04-23 E. I. Du Pont De Nemours And Company Conductive compositions and processes for use in the manufacture of semiconductor devices
CN101206957A (en) * 2007-12-07 2008-06-25 宁波晶鑫电子材料有限公司 Preparation of low temperature drying wafer capacitance electrode silver plasm
CN101206958A (en) * 2007-12-07 2008-06-25 宁波晶鑫电子材料有限公司 Preparation of hyperthermia drying wafer capacitance electrode silver plasm
CN101471389A (en) * 2007-12-25 2009-07-01 国硕科技工业股份有限公司 Solar battery
CN101345263A (en) * 2008-09-09 2009-01-14 季福根 Leadless electronic slurry composition for solar silicon photovoltaic cell and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360628A (en) * 2011-09-22 2012-02-22 山东省科学院新材料研究所 Method for preparing silver paste used for back electrode of photovoltaic cell
CN102592748A (en) * 2012-02-13 2012-07-18 江苏瑞德新能源科技有限公司 Process for producing silver aluminum slurry for solar energy battery
CN102810344A (en) * 2012-08-03 2012-12-05 江苏欧耐尔新型材料有限公司 Silver-plated copper containing paste for solar cell back electrode and method for preparing silver-plated copper containing paste
CN102810344B (en) * 2012-08-03 2014-12-31 江苏欧耐尔新型材料有限公司 Silver-plated copper containing paste for solar cell back electrode and method for preparing silver-plated copper containing paste
CN103617843A (en) * 2013-11-29 2014-03-05 江苏瑞德新能源科技有限公司 Method for producing back silver paste

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Effective date of registration: 20151221

Address after: 315048 No. 374, Holly Road, hi tech Zone, Zhejiang, Ningbo

Patentee after: Ningbo's electric Mstar Technology Ltd

Address before: 315823 No. 35, West Mount Lu Road, Beilun Science Park, Ningbo, Zhejiang

Patentee before: Ningbo Jingxin Electronic Material Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20180115

CF01 Termination of patent right due to non-payment of annual fee