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Compound electrode paste for solar battery and preparation method of compound electrode paste

A technology for solar cells and composite electrodes, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of unsuitable contacts and electrodes, poor thermal conductivity, easy aging, unstable electrical conductivity, etc., to improve anti-oxidation performance , The effect of low preparation cost and material cost reduction

Inactive Publication Date: 2012-09-05
马洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

], whose conductivity is between 10 3 ~10 5 Between S / cm, the coating and toughness are good, and it is expected to be used in solar cells and electrical and electronic systems. However, pure conductive polymers have problems such as unstable conductivity, poor thermal conductivity and easy aging, so they are not suitable for simple use. Used to make contacts and electrodes for solar cells and electrical and electronic systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dissolve 1.0 g of PVP into 999 g of deionized water, then weigh 2.0 g of conductive polyaniline, and disperse it in the aforementioned aqueous solution under ultrasonic dispersion conditions to obtain a black suspension system PASS; then weigh 20.0 g of silver nitrate, dissolve it in In PASS, the suspension system PASSA is obtained;

[0022] Weigh 5.5 grams of absolute ethanol, add the PASSA solution under ultrasonic conditions at 45°C and react for 6 hours, and repeatedly centrifuge and separate the resulting suspension, and dry the isolate to obtain a black powder PASSA;

[0023] Take 45 grams of glycerol as a solvent and 5 grams of hydroxypropyl methylcellulose as a solute to prepare 50 grams of a slurry preparation, weigh 32.5 grams of the prepared slurry preparation, and mix it with black PASSAP powder in an agate mortar Grinding and reconciling to obtain nano-silver / micro-nano conductive polyaniline composite electrode paste, the content of nano-silver in the obta...

Embodiment 2

[0025] Dissolve 2.0 grams of P123 into 998 grams of deionized water, then weigh 5.0 grams of conductive polyaniline, and disperse it in the aforementioned aqueous solution under ultrasonic dispersion conditions to obtain a black suspension PASS; then weigh 21.0 grams of silver nitrate, dissolve it in In PASS, the suspension system PASSA is obtained;

[0026] Weigh 3.5 grams of formaldehyde, add PASSA solution under ultrasonic conditions at 30°C and react for 3 hours, and repeatedly centrifuge and separate the resulting suspension, and dry the isolate to obtain PASSA as a black powder;

[0027] Use 40 grams of terpineol as a solvent and 10 grams of gum arabic as a solute to prepare 50 grams of sizing agent, weigh 32.4 grams of the prepared sizing agent, and grind it with black PASSAP powder in an agate mortar to obtain nano Silver / micro-nano conductive polyaniline composite electrode slurry, the nano-silver content in the gained conductive slurry is 25.2%, the conductive polyan...

Embodiment 3

[0029] Dissolve 5.0 grams of PEG into 995 grams of deionized water, then weigh 7.5 grams of conductive polyaniline, and disperse it in the aforementioned aqueous solution under ultrasonic dispersion conditions to obtain a black suspension system PASS; then weigh 12.5 grams of silver nitrate, dissolve it in In PASS, the suspension system PASSA is obtained;

[0030] Weigh 12.3 g of ascorbic acid, add PASSA solution under ultrasonic conditions at 20°C and react for 2 hours, and repeatedly centrifuge and separate the resulting suspension, and dry the isolate to obtain PASSA as a black powder;

[0031] Use 32.5 grams of methyl ethyl ketone as a solvent and 17.5 grams of castor oil as a solute to prepare 50 grams of a slurry preparation, weigh 35 grams of the prepared slurry preparation, and grind it with black PASSAP powder in an agate mortar to obtain nano-silver / Micro-nano conductive polyaniline composite electrode paste, the content of nano-silver in the obtained conductive pas...

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Abstract

The invention discloses a compound electrode paste for a solar battery and a preparation method of the compound electrode paste. The compound electrode paste contains 10 to 45 percent of nano silver, 5 to 20 percent of conductive polyaniline and the balance of surfactant. The preparation method of the compound electrode paste comprises the following steps of: ultrasonically scattering the conductive polyaniline having a micro nano structure into water containing the surfactant, adding a certain amount of silver nitrate, performing in-situ reduction in the conductive polyaniline scattering system so as to obtain the nano silver, centrifugally washing and drying, and grinding the obtained powder and the surfactant to obtain the nano silver / micro nano conductive polyaniline compound electrode paste. The compound electrode paste prepared by the method is good in conductivity, antioxidant and low in cost, and has good performance of humidifying and attaching crystalline silicon, noncrystalline silicon and ceramic.

Description

technical field [0001] The invention belongs to the field of photovoltaic and energy storage materials industry, and in particular relates to a nano-silver / micro-nano conductive polyaniline composite electrode slurry for making solar cell electrodes and a preparation method thereof. Background technique [0002] As the metal with the best electrical and thermal conductivity, silver is often used to make highly sensitive physical instrument components. A large number of contact points and electrodes in various solar cells and electronic and electrical systems are made of silver [China Rare Earth Journal of the Chinese Academy of Sciences, 2003, Z1: 164; The Tenth China Solar Photovoltaic Conference, 2008-9-19: 132]. However, the price of silver, which is a precious metal, is relatively high, which often leads to a significant increase in product cost in large-scale applications; in addition, the cost of silver components made of pure silver paste is high, and it is easy to ox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/02H01B1/12H01B13/00H01L31/0224
Inventor 马洋吴振军
Owner 马洋