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1. 发明申请

WO2018206950A1 CONDUCTIVE PASTE, ELECTRODE AND SOLAR CELL 审中-公开
公开(公告)号：WO2018206950A1
公开(公告)日：2018-11-15
申请号：PCT/GB2018/051249
申请日：2018-05-09
申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人： BOOTH, Jonathan Charles Shepley , ARAPOV, Kirill , CURRIE, Edwin Peter Kennedy , CELA GREVEN, Beatriz , JOHNSON, Simon , KATZBACH, Roland , NOWAK, Nicolas
IPC分类号： C09D5/24 , H01B1/22 , H01L31/0224
摘要： The present invention relates to a conductive paste for forming a conductive track or coating on a substrate, particularly suitable for use in solar cells. The paste comprises a solids portion dispersed in an organic medium, the solids portion comprising electrically conductive material and an inorganic particle mixture wherein the inorganic particle mixture comprises substantially crystalline particles. The present invention also relates to a method of preparing a conductive paste, a method for the manufacture of a surface electrode of a solar cell, an electrode for a solar cell and a solar cell.

2. 发明申请

WO2021240124A1 CONDUCTIVE PASTES FOR SOLAR CELLS 审中-公开
公开(公告)号：WO2021240124A1
公开(公告)日：2021-12-02
申请号：PCT/GB2021/050696
申请日：2021-03-22
申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人： ARAPOV, Kirill , BOOTH, Jonathan , CELA, Beatriz , JOHNSON, Simon , KATZBACH, Roland , SUTTON, Patricia Ann
IPC分类号： H01B1/22 , H01L31/0224
摘要： A conductive paste comprising: a solids portion comprising a silver powder and a crystalline metal compound powder; and an organic carrier medium in which the silver powder and crystalline metal compound powder are dispersed, wherein the solids portion has a glass content less than 1 wt%, wherein the crystalline metal compound powder has a lead content less than 0.5 wt% calculated as PbO; wherein the crystalline metal compound powder has a particle size with a D90 ≤ 5 µm and a D50 ≤ 2 µm, and wherein the crystalline metal compound powder has a composition comprising at least: 40 to 60 wt% Te calculated as TeO2; 12 to 25 wt% Bi calculated as Bi2O3; and 10 to 25 wt% Zn calculated as ZnO, expressed as percentage weights (wt%) relative to a total weight of the crystalline metal compound powder in the conductive paste excluding any silver compounds, and/or wherein the crystalline metal compound powder has a composition comprising at least: 20 to 40 mol% Te calculated as TeO2; 2 to 6 mol% Bi calculated as Bi2O3; and 14 to 29 mol% Zn calculated as ZnO, expressed as mole percentage (mol%) relative to a total of the crystalline metal compound powder in the conductive paste excluding any silver compounds, and/or wherein the crystalline metal compound powder has a composition comprising at least the following components expressed as a molar ratio defined by SUM(all sources of a particular element) / SUM(all sources of Ag): 0.0060 to 0.0090 Te/Ag; 0.0012 to 0.0026 Bi/Ag; and 0.0029 to 0.0074 Zn/Ag.

3. 发明申请

WO2019180413A1 CONDUCTIVE PASTE, METHOD, ELECTRODE AND SOLAR CELL 审中-公开
公开(公告)号：WO2019180413A1
公开(公告)日：2019-09-26
申请号：PCT/GB2019/050754
申请日：2019-03-18
申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人： ARAPOV, Kirill , CELA GREVEN, Beatriz , CURRIE, Edwin Peter Kennedy , KATZBACH, Roland
IPC分类号： C09D5/24 , C03C3/12 , C03C8/14 , C03C8/18 , C09D1/00 , C08K3/22 , H01B1/16 , H01B1/22 , H01L31/0224
摘要： A conductive paste for forming a conductive track or coating on a substrate, the paste comprising a solids portion dispersed in an organic vehicle, the solids portion comprising electrically conductive material and an inorganic particle mixture; wherein the inorganic particle mixture comprises particles of glass frit and substantially crystalline particles of one or more metal compounds; and wherein the glass frit comprises at least 90 mol% Te O 2 .

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