CN104475754A - Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell - Google Patents
Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell Download PDFInfo
- Publication number
- CN104475754A CN104475754A CN201410839022.7A CN201410839022A CN104475754A CN 104475754 A CN104475754 A CN 104475754A CN 201410839022 A CN201410839022 A CN 201410839022A CN 104475754 A CN104475754 A CN 104475754A
- Authority
- CN
- China
- Prior art keywords
- silver
- silver powder
- ball
- powder
- preparation
- 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
Abstract
The invention relates to a preparation method of irregular flaky silver powder for silver slurry on the back surface of a solar cell. The preparation method comprises the following steps: (1) preparing a solution of silver nitrate; (2) preparing a solution of a reducing agent; (3) reducing and sieving; (4) performing ball milling; (5) cleaning and dying. According to the preparation method, double dispersants, namely polyvinylpyrrolidone and Tween-80 are taken as a dispersion system, so that obtained silver powder is higher in irregularity degree; ammonia water is taken as a complexing agent and a pH regulator, and hydrazine hydrate is taken as the reducing agent, so that fewer impurities are brought; no ball milling medium residue exists after a ball milling medium is washed by absolute ethyl alcohol; the particle size of the finally obtained irregular silver powder is about 2 to 4 microns, and the purity is over 99.8 percent; the powder can independently serve as the silver powder used for the silver slurry on the back surface of the solar cell. The back silver powder prepared by the preparation method is high in stability; the problem about the difference between the sintering activities of two types of silver powder of matching-type silver powder is avoided; the compactness of a film formed by sintering the back surface silver slurry prepared by the preparation method is higher than that of the film formed by sintering the matching-type silver powder, so that the advantages of adhesion force and electrical properties are very obvious.
Description
Technical field
The invention belongs to the preparation field of silver powder, particularly relate to the preparation method of the irregular flake silver powder of a kind of rear surface of solar cell silver slurry.
Background technology
Along with solar battery technology constantly develops, solar electrical energy generation stands in residential electricity consumption this part and also occupies a tiny space gradually.The conversion efficiency of solar cell is also improving gradually, and the conversion efficiency of current solar cell is generally about 18, and the positive silver of Du Pont 19 series also will be born at once.Simultaneously in order to environmental protection is considered, solar battery sheet is also even unleaded from there being lead to become low lead.And starch as the back silver of the important composition of solar battery sheet, also improve constantly along with the innovation of solar battery technology, especially under the condition ensureing its adhesive force and solderability, reduce the general orientation that its silver content also becomes its innovation.
Back silver slurry used for solar batteries is in the market substantially all adopt flake silver powder and micro silver powder to add according to a certain percentage, form in organic carrier, glass dust and some additive mixed grindings again, seldom or even do not have a kind of back silver used for solar batteries slurry to be adopt single a kind of silver powder and organic carrier, glass dust, additive mixed grinding.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, technical problem to be solved is for providing the preparation method of the irregular flake silver powder of a kind of rear surface of solar cell silver slurry, it can, alone as back silver slurry silver powder used for solar batteries, not need to use with the collocation of other silver powder.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of rear surface of solar cell silver slurry preparation method of irregular flake silver powder, comprises the following steps:
(1) by soluble in water for oxidant silver nitrate, then add polyvinylpyrrolidone, finally add excessive ammonia and form silver ammino solution, obtain reaction system A; The consumption of described polyvinylpyrrolidone is 0.2 ~ 0.4% of silver nitrate quality, and the consumption of ammoniacal liquor is 83.0 ~ 85.0% of silver nitrate quality;
(2) hydrazine hydrate is soluble in water, then add Tween 80, obtain reaction system B; Described hydrazine hydrate and the mass ratio of silver nitrate are 1.0 ~ 1.2:10, and the consumption of Tween 80 is 0.5 ~ 0.7% of silver nitrate quality;
(3) above-mentioned reaction system A slowly pours in B by limit stirring reaction system B limit, react 50 ~ 60 minutes, by suction filtration after the product cleaning that obtains, then dry, cross 150 ~ 200 order supersonic oscillations sieves after being pulverized by the powder obtained again, obtain the original silver powder C of ball milling;
(4) be 1mm and 2mm stainless steel hoodle by silver powder C and diameter, by certain ratio of grinding media to material and ball ball than mixing, put into hexagon ball grinder, then add ball-milling medium ethanol and dispersant oleic acid, by certain rotating speed, Ball-milling Time is 48 ~ 60h;
(5) ball milling complete after powder slurry, after washes of absolute alcohol 5 ~ 6 times, put into vacuum drying oven 30 ~ 40 DEG C dry 24 ~ 30h, dry after gained silver powder be required silver powder.
Cleaning described in step (3) is for adopting siphon pure water cleaning 6 ~ 8 times, and described bake out temperature is 55 ~ 60 DEG C, and drying time is 12 ~ 18h.
Described in step (4), ratio of grinding media to material is 8 ~ 10:1, described diameter is the ball ball ratio of 1mm and 2mm stainless steel hoodle is 1.0 ~ 2.0:1, described ball-milling medium absolute ethyl alcohol consumption is 65.0 ~ 75.0% of quality of cathode silver, described ball-milling medium oleic acid consumption is 1.0 ~ 1.2% of quality of cathode silver, and described rotational speed of ball-mill is 80 ~ 100r/min.
The present invention compared with prior art has following beneficial effect:
(1) the present invention adopts polyvinylpyrrolidone and the two dispersant of Tween 80 as dispersion, and gained silver powder degree of irregularity is higher.
(2) the present invention adopts ammoniacal liquor as complexing agent and PH conditioning agent, and hydrazine hydrate, as reducing agent, brings impurity into less, and ball-milling medium almost noresidue after washes of absolute alcohol, therefore gained silver powder purity is higher.
(3) the irregular silver powder diameter of particle that finally obtains of the present invention is at 2 ~ 4 microns, and purity is more than 99.8%, and powder can separately as solar energy back silver slurry silver powder.
Irregular silver powder prepared by the present invention, it is applied to rear surface of solar cell silver slurry silver powder, and its advantage is:
(1) it can, directly as back silver paste silver powder, not need, with other thin silver powder collocation, to select and collocation problem, greatly reduce the research and development time of the back of the body silver when back silver paste can be avoided like this to research and develop about silver powder.
(2) by back silver paste in the market, ratio shared by silver powder is nearly all 50 ~ 60%, so the impact of silver powder on back of the body silver is very large, and its stability of tradition back of the body silver powder depends on the stability of two kinds of silver powder, and the stability of silver powder prepared by the present invention only depends on a kind of silver powder, its advantage is apparent.
(3) there is not compatibility issue in the back of the body silver silver powder prepared by the present invention.Other carries on the back silver powder is all collocation type, and the system prepared due to often kind of silver powder is not exclusively the same, and there are differences, the sintering activity of two kinds of silver powder of therefore collocation type silver powder there are differences.But silver powder prepared by the present invention it prepare under same system, therefore there is not the problem of sintering activity difference in it, so good than collocation type silver powder of its compactness after its back silver slurry sintering film forming prepared, therefore no matter from adhesive force, or its advantage of electrical property aspect is all fairly obvious.
Detailed description of the invention
Embodiment 1
(1) be dissolved in 5.0L water by oxidant silver nitrate 1000g, then add polyvinylpyrrolidone PVP0.3g, finally add 80g ammoniacal liquor and form silver ammino solution, the pH value controlling solution is greater than 13, obtains reaction system A;
(2) hydrazine hydrate 100g is dissolved in 2.0L water, then adds 0.6g Tween 80, obtain reaction system B;
(3), under stirring, above-mentioned reaction system A is slowly poured in B, reacts 50 ~ 60 minutes, after being adopted by the product obtained siphon pure water to clean 8 cleanings, suction filtration washes 2 times, then in 60 DEG C of oven dry, after drying, 150 order supersonic oscillations sieves crossed after crushed by silver powder, and gained silver powder is stand-by.
(4) by silver powder and stainless steel hoodle, by ratio of grinding media to material be 10:1 mixing, diameter is that 1mm and 2mm stainless steel ballistics ball is than being 1:1, the stainless steel hoodle 2500g that the stainless steel hoodle 2500g that weighing silver powder 500g, diameter are 1mm, diameter are 2mm, puts into hexagon ball grinder, then measures 325g absolute ethyl alcohol and 5g oleic acid with beaker, be dissolved in after absolute ethyl alcohol until oleic acid, pour in ball grinder, adjusting rotary speed is 100r/min, ball milling 55h.
(5) ball milling complete after powder slurry, after washes of absolute alcohol 6 times, put into vacuum drying oven 30 DEG C dry 30h, dry after gained silver powder be required silver powder.
Embodiment 2
(1) be dissolved in 5.0L water by oxidant silver nitrate 1000g, then add polyvinylpyrrolidone PVP0.2g, finally add 85g ammoniacal liquor and form silver ammino solution, the pH value controlling solution is greater than 13, obtains reaction system A;
(2) hydrazine hydrate 100g is dissolved in 2.0L water, then adds 0.7g Tween 80, obtain reaction system B;
(3), under stirring, above-mentioned reaction system A is slowly poured in B, reacts 50 ~ 60 minutes, after being adopted by the product obtained siphon pure water to clean 7 cleanings, suction filtration washes 2 times, then in 60 DEG C of oven dry, after drying, 150 order supersonic oscillations sieves crossed after crushed by silver powder, and gained silver powder is stand-by.
(4) by silver powder and stainless steel hoodle, by ratio of grinding media to material be 8:1 mixing, diameter is that 1mm and 2mm stainless steel ballistics ball is than being 2:1, the stainless steel hoodle 1333g that the stainless steel hoodle 2667g that weighing silver powder 500g, diameter are 1mm, diameter are 2mm, puts into hexagon ball grinder, then measures 350g absolute ethyl alcohol and 5.5g oleic acid with beaker, be dissolved in after absolute ethyl alcohol until oleic acid, pour in ball grinder, adjusting rotary speed is 100r/min, ball milling 50h.
(5) ball milling complete after powder slurry, after washes of absolute alcohol 5 times, put into vacuum drying oven 40 DEG C dry 30h, dry after gained silver powder be required silver powder.
Embodiment 3
(1) be dissolved in 5.0L water by oxidant silver nitrate 1000g, then add polyvinylpyrrolidone PVP0.3g, finally add 80g ammoniacal liquor and form silver ammino solution, the pH value controlling solution is greater than 13, obtains reaction system A;
(2) hydrazine hydrate 120g is dissolved in 2.0L water, then adds 0.5g Tween 80, obtain reaction system B;
(3), under stirring, above-mentioned reaction system A is slowly poured in B, reacts 50 ~ 60 minutes, after being adopted by the product obtained siphon pure water to clean 6 cleanings, suction filtration washes 2 times, then in 55 DEG C of oven dry, after drying, 200 order supersonic oscillations sieves crossed after crushed by silver powder, and gained silver powder is stand-by.
(4) by silver powder and stainless steel hoodle, by ratio of grinding media to material be 10:1 mixing, diameter is that 1mm and 2mm stainless steel ballistics ball is than being 1:1, the stainless steel hoodle 2500g that the stainless steel hoodle 2500g that weighing silver powder 500g, diameter are 1mm, diameter are 2mm, puts into hexagon ball grinder, then measures 375g absolute ethyl alcohol and 6g oleic acid with beaker, be dissolved in after absolute ethyl alcohol until oleic acid, pour in ball grinder, adjusting rotary speed is 80r/min, ball milling 60h.
(5) ball milling complete after powder slurry, after washes of absolute alcohol 6 times, put into vacuum drying oven 24 DEG C dry 30h, dry after gained silver powder be required silver powder.
Embodiment 4
(1) be dissolved in 5.0L water by oxidant silver nitrate 1000g, then add polyvinylpyrrolidone PVP0.2g, finally add 85g ammoniacal liquor and form silver ammino solution, the pH value controlling solution is greater than 13, obtains reaction system A;
(2) hydrazine hydrate 100g is dissolved in 2.0L water, then adds 0.7g Tween 80, obtain reaction system B;
(3), under stirring, above-mentioned reaction system A is slowly poured in B, reacts 50 ~ 60 minutes, after being adopted by the product obtained siphon pure water to clean 7 cleanings, suction filtration washes 2 times, then in 55 DEG C of oven dry, after drying, 150 order supersonic oscillations sieves crossed after crushed by silver powder, and gained silver powder is stand-by.
(4) by silver powder and stainless steel hoodle, by ratio of grinding media to material be 8:1 mixing, diameter is that 1mm and 2mm stainless steel ballistics ball is than being 2:1, the stainless steel hoodle 1333g that the stainless steel hoodle 2667g that weighing silver powder 500g, diameter are 1mm, diameter are 2mm, puts into hexagon ball grinder, then measures 350g absolute ethyl alcohol and 5.5g oleic acid with beaker, be dissolved in after absolute ethyl alcohol until oleic acid, pour in ball grinder, adjusting rotary speed is 80r/min, ball milling 48h.
(5) ball milling complete after powder slurry, after washes of absolute alcohol 5 times, put into vacuum drying oven 40 DEG C dry 24h, dry after gained silver powder be required silver powder.
The present invention can summarize with other the concrete form without prejudice to spirit of the present invention or principal character.Therefore, no matter from which point, above-mentioned embodiment of the present invention all can only be thought explanation of the present invention and can not limit invention, claims indicate scope of the present invention, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (3)
1. a rear surface of solar cell silver slurry preparation method for irregular flake silver powder, is characterized in that: comprise the following steps
(1) by soluble in water for oxidant silver nitrate, then add polyvinylpyrrolidone, finally add excessive ammonia and form silver ammino solution, obtain reaction system A; The consumption of described polyvinylpyrrolidone is 0.2 ~ 0.4% of silver nitrate quality, and the consumption of ammoniacal liquor is 83.0 ~ 85.0% of silver nitrate quality;
(2) hydrazine hydrate is soluble in water, then add Tween 80, obtain reaction system B; Described hydrazine hydrate and the mass ratio of silver nitrate are 1.0 ~ 1.2:10, and the consumption of Tween 80 is 0.5 ~ 0.7% of silver nitrate quality;
(3) above-mentioned reaction system A slowly pours in B by limit stirring reaction system B limit, react 50 ~ 60 minutes, by suction filtration after the product cleaning that obtains, then dry, cross 150 ~ 200 order supersonic oscillations sieves after being pulverized by the powder obtained again, obtain the original silver powder C of ball milling;
(4) be 1mm and 2mm stainless steel hoodle by silver powder C and diameter, by certain ratio of grinding media to material and ball ball than mixing, put into hexagon ball grinder, then add ball-milling medium ethanol and dispersant oleic acid, by certain rotating speed, Ball-milling Time is 48 ~ 60h;
(5) ball milling complete after powder slurry, after washes of absolute alcohol 5 ~ 6 times, put into vacuum drying oven 30 ~ 40 DEG C dry 24 ~ 30h, dry after gained silver powder be required silver powder.
2. a kind of rear surface of solar cell silver slurry according to claim 1 preparation method of irregular flake silver powder, it is characterized in that: the cleaning described in step (3) is for adopting siphon pure water cleaning 6 ~ 8 times, described bake out temperature is 55 ~ 60 DEG C, and drying time is 12 ~ 18h.
3. a kind of rear surface of solar cell silver slurry according to claim 1 preparation method of irregular flake silver powder, it is characterized in that: described in step (4), ratio of grinding media to material is 8 ~ 10:1, described diameter is the ball ball ratio of 1mm and 2mm stainless steel hoodle is 1.0 ~ 2.0:1, described ball-milling medium absolute ethyl alcohol consumption is 65.0 ~ 75.0% of quality of cathode silver, described ball-milling medium oleic acid consumption is 1.0 ~ 1.2% of quality of cathode silver, and described rotational speed of ball-mill is 80 ~ 100r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839022.7A CN104475754A (en) | 2014-12-30 | 2014-12-30 | Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839022.7A CN104475754A (en) | 2014-12-30 | 2014-12-30 | Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104475754A true CN104475754A (en) | 2015-04-01 |
Family
ID=52750431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410839022.7A Pending CN104475754A (en) | 2014-12-30 | 2014-12-30 | Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104475754A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345024A (en) * | 2015-10-30 | 2016-02-24 | 溧阳市立方贵金属材料有限公司 | Preparation method for leaf-shaped silver powder |
| CN105414560A (en) * | 2015-12-25 | 2016-03-23 | 广东羚光新材料股份有限公司 | Method for preparing small-grain-size flake silver powder for high-resolution display screen paste |
| CN105817647A (en) * | 2016-05-13 | 2016-08-03 | 溧阳市立方贵金属材料有限公司 | Preparation method for flake sliver powder used for solar rear silver paste |
| CN105880632A (en) * | 2016-06-14 | 2016-08-24 | 深圳市中金岭南科技有限公司 | Method for preparing oxidation-resistant flaky silver powder |
| CN106334802A (en) * | 2016-09-29 | 2017-01-18 | 清华大学深圳研究生院 | Metal powder of spongy microstructure, preparation method thereof, and conductive material |
| CN106862576A (en) * | 2017-03-30 | 2017-06-20 | 中国振华集团云科电子有限公司 | A kind of manufacture craft of flake silver powder |
| CN112809019A (en) * | 2021-02-07 | 2021-05-18 | 深圳市宏达瑞科技有限公司 | Preparation method of silver powder for low-temperature silver paste of heterojunction solar cell |
| CN115055689A (en) * | 2021-08-30 | 2022-09-16 | 河南金渠银通金属材料有限公司 | Stable high-conductivity silver powder and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859241A (en) * | 1986-04-16 | 1989-08-22 | Johnson Matthey Inc. | Metal flake and use thereof |
| US5928571A (en) * | 1997-08-29 | 1999-07-27 | E. I. Du Pont De Nemours And Company | Thick film compositions for making medical electrodes |
| KR100922224B1 (en) * | 2008-11-10 | 2009-10-20 | 나노바이오주식회사 | A method for preparing metal nanoparticles using mixed polymer as surfactant |
| CN102139368A (en) * | 2011-03-18 | 2011-08-03 | 中科院广州化学有限公司 | High-dispersion silver powder and solar battery electrode conductive silver paste |
| CN102513546A (en) * | 2011-12-22 | 2012-06-27 | 肇庆市羚光电子化学品材料科技有限公司 | Functional silver flake and preparation method thereof |
| CN102592705A (en) * | 2012-03-15 | 2012-07-18 | 上海交通大学 | Environment-friendly water-based positive silver paste for solar cell, and preparation method thereof |
| CN102831949A (en) * | 2012-08-24 | 2012-12-19 | 合肥中南光电有限公司 | Efficient lead-free silver paste on back of solar cell and preparation method of silver paste |
| CN103056386A (en) * | 2013-01-15 | 2013-04-24 | 宁波晶鑫电子材料有限公司 | Preparation method for low-silver-content low-apparent-density ultrafine silver powder for electronic paste |
| CN103611940A (en) * | 2013-11-29 | 2014-03-05 | 江苏瑞德新能源科技有限公司 | Method for preparing flaky silver powder used for conductive silver paste |
| CN103943727A (en) * | 2014-04-30 | 2014-07-23 | 张瑜 | Manufacturing method of back electrode |
-
2014
- 2014-12-30 CN CN201410839022.7A patent/CN104475754A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859241A (en) * | 1986-04-16 | 1989-08-22 | Johnson Matthey Inc. | Metal flake and use thereof |
| US5928571A (en) * | 1997-08-29 | 1999-07-27 | E. I. Du Pont De Nemours And Company | Thick film compositions for making medical electrodes |
| KR100922224B1 (en) * | 2008-11-10 | 2009-10-20 | 나노바이오주식회사 | A method for preparing metal nanoparticles using mixed polymer as surfactant |
| CN102139368A (en) * | 2011-03-18 | 2011-08-03 | 中科院广州化学有限公司 | High-dispersion silver powder and solar battery electrode conductive silver paste |
| CN102513546A (en) * | 2011-12-22 | 2012-06-27 | 肇庆市羚光电子化学品材料科技有限公司 | Functional silver flake and preparation method thereof |
| CN102592705A (en) * | 2012-03-15 | 2012-07-18 | 上海交通大学 | Environment-friendly water-based positive silver paste for solar cell, and preparation method thereof |
| CN102831949A (en) * | 2012-08-24 | 2012-12-19 | 合肥中南光电有限公司 | Efficient lead-free silver paste on back of solar cell and preparation method of silver paste |
| CN103056386A (en) * | 2013-01-15 | 2013-04-24 | 宁波晶鑫电子材料有限公司 | Preparation method for low-silver-content low-apparent-density ultrafine silver powder for electronic paste |
| CN103611940A (en) * | 2013-11-29 | 2014-03-05 | 江苏瑞德新能源科技有限公司 | Method for preparing flaky silver powder used for conductive silver paste |
| CN103943727A (en) * | 2014-04-30 | 2014-07-23 | 张瑜 | Manufacturing method of back electrode |
Non-Patent Citations (1)
| Title |
|---|
| 罗贱: "晶体硅太阳能电池用银粉的制备及其对背面银浆性能的影响", 《中国优秀硕士学位论文全文数据库(工程科技Ⅰ辑)》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345024A (en) * | 2015-10-30 | 2016-02-24 | 溧阳市立方贵金属材料有限公司 | Preparation method for leaf-shaped silver powder |
| CN105414560A (en) * | 2015-12-25 | 2016-03-23 | 广东羚光新材料股份有限公司 | Method for preparing small-grain-size flake silver powder for high-resolution display screen paste |
| CN105414560B (en) * | 2015-12-25 | 2017-12-19 | 广东羚光新材料股份有限公司 | A kind of preparation method of high-resolution display screen slurry small particle flake silver powder |
| CN105817647A (en) * | 2016-05-13 | 2016-08-03 | 溧阳市立方贵金属材料有限公司 | Preparation method for flake sliver powder used for solar rear silver paste |
| CN105880632A (en) * | 2016-06-14 | 2016-08-24 | 深圳市中金岭南科技有限公司 | Method for preparing oxidation-resistant flaky silver powder |
| CN106334802A (en) * | 2016-09-29 | 2017-01-18 | 清华大学深圳研究生院 | Metal powder of spongy microstructure, preparation method thereof, and conductive material |
| CN106334802B (en) * | 2016-09-29 | 2018-12-28 | 清华大学深圳研究生院 | Metal powder with spongy microstructure and preparation method thereof, conductive material |
| CN106862576A (en) * | 2017-03-30 | 2017-06-20 | 中国振华集团云科电子有限公司 | A kind of manufacture craft of flake silver powder |
| CN112809019A (en) * | 2021-02-07 | 2021-05-18 | 深圳市宏达瑞科技有限公司 | Preparation method of silver powder for low-temperature silver paste of heterojunction solar cell |
| CN112809019B (en) * | 2021-02-07 | 2022-02-22 | 深圳市宏达瑞科技有限公司 | Preparation method of silver powder for low-temperature silver paste of heterojunction solar cell |
| CN115055689A (en) * | 2021-08-30 | 2022-09-16 | 河南金渠银通金属材料有限公司 | Stable high-conductivity silver powder and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104475754A (en) | Preparation method of irregular flaky silver powder for silver slurry on back surface of solar cell | |
| CN101944591B (en) | Lithium titanate anode material for lithium ion batteries and preparation method thereof | |
| CN101615637A (en) | Electrode of solar battery forms with slurry and preparation method thereof | |
| CN102324263A (en) | Silver paste for solar cells and preparation method thereof | |
| CN104376894B (en) | Solar cell conductive front side silver paste | |
| CN102324266B (en) | Glass-powder-free crystalline silicon solar battery aluminum paste and preparation method thereof | |
| CN106887271B (en) | Modified lead-free silver slurry of a kind of graphene and preparation method thereof | |
| TWI577640B (en) | Nickel-lithium metal composite oxide powder and method for producing same,positive electrode active material for lithium ion battery, positive electrode for lithium ion battery and lithium ion battery | |
| CN102974833B (en) | Method for preparing flake silver powder | |
| CN102107862A (en) | Method for preparing lithium iron phosphate by using wood fibers as carbon source | |
| CN102280638A (en) | Vegetable protein carbon cladded nanometer lithium iron phosphate anode material and preparation method thereof | |
| CN107564601A (en) | A kind of backplate slurry for two-sided PERC solar cells and preparation method thereof | |
| CN102522141B (en) | Conducting aluminum paste for silicon solar cell and preparation method thereof | |
| CN103578604B (en) | A kind of silica-based solar cell main grid front electrode slurry of low silver content and preparation method thereof | |
| CN103066285A (en) | Preparation method of negative pole material of lithium ion battery | |
| CN103435339B (en) | A kind of aluminium-doped zinc oxide target and preparation method thereof | |
| CN103065702B (en) | A kind of crystal silicon solar energy battery aluminium paste and preparation method thereof | |
| CN102082209A (en) | Method for printing thin grid line of crystalline silicon solar cell through screen printing technology | |
| CN102522158B (en) | Preparation method of positive silver paste for notched crystalline silicon solar cell | |
| CN113716549A (en) | Multi-element coated core-shell structure lithium ion positive electrode material and preparation method thereof | |
| CN105513672A (en) | Preparation method for flaky rhombic silver powder slurry on back of solar cell | |
| CN114277334B (en) | Indium tin tantalum ytterbium oxide powder and preparation method and application thereof | |
| CN107316674A (en) | A kind of crystal silicon solar energy battery positive silver paste and preparation method thereof | |
| CN103236543A (en) | Method for preparing lithium ferrous silicate anode material | |
| CN109493991B (en) | Boron slurry for PERC battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150401 |