Glass frit composition, paste composition for solar cell electrodes including the same and solar cell module

Patent metadata

Field	Value
Publication number	US-2016284892-A1
Application number	US-201415035888-A
Country	US
Kind code	A1
Filing date	Nov 10, 2014
Priority date	Nov 12, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

Disclosed is a glass frit composition used for a paste composition for solar cell electrodes containing lead oxide and vanadium oxide, wherein the vanadium oxide is present in an amount of 30 to 70 mol % with respect to 100 mol % in total of the glass frit composition.

First claim

1 . A glass frit composition used for a paste composition for solar cell electrodes comprising:
lead oxide; and vanadium oxide, wherein the vanadium oxide is included in an amount of 30 to 70 mol % with respect to 100 mol % in total of the glass frit composition.

2 . The glass frit composition according to claim 1 , wherein a total amount of the lead oxide and the vanadium oxide is 60 to 100 mol % with respect to 100 mol % in total of the glass frit composition.

3 . The glass frit composition according to claim 2 , wherein the total amount of the lead oxide and the vanadium oxide is 70 to 100 mol % with respect to 100 mol % in total of the glass frit composition.

4 . The glass frit composition according to claim 1 , wherein the lead oxide is present in an amount of 30 to 70 mol % with respect to 100 mol % in total of the glass frit composition.

5 . The glass frit composition according to claim 4 , wherein the lead oxide is present in an amount of 30 to 60 mol % and the vanadium oxide is present in an amount of 40 to 70 mol % with respect to 100 mol % in total of the glass frit composition.

6 . The glass frit composition according to claim 1 , further comprising alkali metal oxide.

7 . The glass frit composition according to claim 6 , wherein the alkali metal oxide is present in an amount of 1 to 10 mol % with respect to 100 mol % in total of the glass frit composition.

8 . The glass frit composition according to claim 1 , wherein the glass frit composition has a glass transition temperature of 200 to 300° C.

9 . The glass frit composition according to claim 8 , wherein the glass frit composition has a crystallization temperature of 280 to 400° C. which is higher than the glass transition temperature.

10 . A paste composition for solar cell electrodes comprising:
a conductive powder; a glass frit; and an organic vehicle, wherein the glass frit comprises lead oxide and vanadium oxide, wherein the vanadium oxide is included in an amount of 30 to 70 mol % with respect to 100 mol % in total of the glass frit.

11 . The paste composition according to claim 10 , wherein a total amount of the lead oxide and the vanadium oxide is 60 to 100 mol % with respect to 100 mol % in total of the glass frit.

12 . The paste composition according to claim 11 , wherein the total amount of the lead oxide and the vanadium oxide is 70 to 100 mol % with respect to 100 mol % in total of the glass frit.

13 . The paste composition according to claim 9 , wherein the lead oxide is present in an amount of 30 to 70 mol % with respect to 100 mol % in total of the glass frit.

14 . The paste composition according to claim 13 , wherein the lead oxide is present in an amount of 30 to 60 mol % and the vanadium oxide is present in an amount of 40 to 70 mol %with respect to 100 mol % in total of the glass frit.

15 . The paste composition according to claim 1 , wherein the glass frit has a glass transition temperature of 200 to 300° C.

16 . The paste composition according to claim 15 , wherein the glass frit has a crystallization temperature of 280 to 400° C. which is higher than the glass transition temperature.

17 . The paste composition according to claim 10 , wherein the glass frit is present as a powder having a central particle diameter of 3 μm or less, and
the glass frit is present in an amount of 0.1 to 5.0 parts by weight with respect to 100 parts by weight in total of the paste composition.

18 . A solar cell module comprising:
a photoelectric converter; an electrode connected to the photoelectric converter; and a ribbon adhered to the electrode, wherein the electrode comprises a glass frit containing lead oxide and vanadium oxide, the ribbon comprises lead and tin, and an adhesion force between the electrode and the ribbon is 1.7N to 6.0N.

19 . The solar cell module according to claim 18 , wherein the electrode has a contact resistance of 5 to 40 ohm.cm 2 .

20 . The solar cell module according to claim 18 , wherein the electrode comprises silver as a conductive material.

Assignees

• Lg Electronics Inc

Inventors

• Jang Hyeonwoo
• Kim Duckgon
• Song Ha Chul

Classifications

• H10F77/707

  of the substrates or of layers on substrates, e.g. textured ITO layer on a glass substrate · CPC title

• H10F77/315

  the coatings being antireflective or having enhancing optical properties · CPC title

• H10F19/00

  Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules · CPC title

• H10F77/211 Primary

  for photovoltaic cells · CPC title

• H01L31/02366

  Electricity · mapped topic