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Metallic paste composition for formation of an electrode, and Ag-C composite electrodes and silicon solar cells using the same

A technology of metal paste and composition, applied in conductive materials, circuits, photovoltaic power generation and other directions dispersed in non-conductive inorganic materials, can solve the problems of difficult commercialization and high price of products

Inactive Publication Date: 2011-05-11
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, silver, which is usually contained in conductive metal paste, has good conductivity, but its price is high, which makes it difficult to commercialize the product

Method used

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  • Metallic paste composition for formation of an electrode, and Ag-C composite electrodes and silicon solar cells using the same
  • Metallic paste composition for formation of an electrode, and Ag-C composite electrodes and silicon solar cells using the same
  • Metallic paste composition for formation of an electrode, and Ag-C composite electrodes and silicon solar cells using the same

Examples

Experimental program
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Embodiment 1 to 5

[0062] According to the content in Table 1, silver powder, based on Bi 2 o 3 The glass frit powder and carbon black were uniformly mixed and stirred, and an organic binder comprising cellulose, butyl carbitol, and terpineol in a weight ratio of 2:5:5 was added and stirred to prepare a metal paste composition.

Embodiment 6 to 10

[0064] A metal paste composition was prepared in the same manner as in Example 1 except that graphite was added instead of carbon black.

Embodiment 11 to 14

[0072] According to the content in Table 2, silver powder, based on Bi 2 o 3The glass frit powder and carbon black were uniformly mixed and stirred, and an organic binder comprising cellulose, butyl carbitol, and terpineol in a weight ratio of 2:5:5 was added and stirred to prepare a metal paste composition.

[0073] [Table 2]

[0074]

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Abstract

The present invention relates to a metallic paste composition for formation of an electrode, and Ag-C composite electrodes and silicon solar cells using the same. The metallic paste composition for forming electrodes, comprises glass frit powder, silver powder and an organic binder further comprising a carbon-based material powder, wherein the carbon-based material is contained in an amount of not greater than 20 wt%, preferably not greater than 25 wt%, with respect to 100 wt% of the silver powder, and optionally, silver particles in the silver powder have an average particle diameter of not greater than 1 mm. Despite the relatively low silver content in the inventive metallic paste composition for formation of an electrode, electrical properties of the thus produced electrodes are not substantially degraded.

Description

technical field [0001] The present invention relates to a metal paste composition for forming electrodes, and silver-carbon composite electrodes and silicon solar cells using the composition, in particular, the present invention relates to a metal paste composition, which can be used for economical The present invention also relates to a silver-carbon composite electrode formed using the metal paste composition and a silicon solar cell comprising the electrode. Background technique [0002] Recently, with the advancement of the electronics industry, there have been demands for miniaturization and high reliability of electronic products and devices. In order to meet this demand, various attempts have been made to form circuit patterns or electrodes for electronic products requiring high integration. Under such circumstances, the use of conductive metal pastes has become the focus of attention since few by-products or pollutants are generated during the process. [0003] Typ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B1/24H01L31/042
CPCH01B1/16H01B1/18H01B1/22H01B1/24H01L31/022425Y02E10/50
Inventor 朴钟昱金相澔金昭沅
Owner LG CHEM LTD
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