公开(公告)号：US10797185B2

公开(公告)日：2020-10-06

申请号：US16254977

申请日：2019-01-23

Applicant: Soltrium Advanced Materials Technology, Ltd Shenzhen

Inventor： Xiaoli Liu ,  Fengzhen Sun ,  Yu Li ,  Delin Li

IPC: H01B1/22 ,  B05D5/12 ,  H01L31/0224 ,  H01L31/068 ,  H01L31/18 ,  B41M3/00 ,  B41M7/00 ,  B22F1/00 ,  H01L31/0216

Abstract: A front-side conductive paste for a crystalline silicon solar cell is provided. The front-side conductive paste for a crystalline silicon solar cell includes, in parts by weight, 80.0-93.0 parts of a metal powder, 6.0-15.0 parts of an organic carrier, and 1.0-5.0 parts of an oxide etching agent, where based on 100% by mole of the oxide etching agent, the oxide etching agent includes 15-30% of PbO; 25-40% of TeO2; 8.0-15.0% of Li2O; 9.0-20.0% of SiO2; 5.0-15.0% of Bi2O3; 0.5-10.0% of ZnO; and either one or both of 0.1-10.0% of MgO and 0.1-10.0% of CaO; and no more than 5.0% of an oxide of additional metal elements. The metal powder forms good ohmic contact with crystalline silicon substrate during the sintering process of the front-side conductive paste applied overlying an insulation film on the substrate. Finally, a front-side electrode of low contact resistance, good electrical conductivity, and strong adhesion is obtained.

公开(公告)号：US20220340794A1

公开(公告)日：2022-10-27

申请号：US17413565

申请日：2020-01-17

Applicant: SOLTRIUM ADVANCED MATERIALS TECHNOLOGY, LTD SHENZHEN

Inventor： Wen Shi ,  Fengzhen Sun ,  Delin LI

IPC: C09J163/10 ,  C08K3/08 ,  C08K9/02 ,  C08K7/18

Abstract: A modified epoxy acrylic resin conductive adhesive is disclosed, based on 100 parts by total mass, including the following components: 49-75 parts of conductive particles, 24-45 parts of modified epoxy propylene resin, 0.5-2.5 parts of silane coupling agent, and 0.5-3.0 parts of initiator. The conductive particles include at least 5% conductive particles with a three-dimensional dendritic microstructure among all the conductive particles. A preparation method and application of the modified epoxy acrylic resin conductive adhesive are disclosed. The modified epoxy acrylic resin conductive adhesive of the present disclosure has advantages in good electrical conductivity, short curing time, strong adhesion, and capability being used for a long-time room temperature operation.

公开(公告)号：US20190305150A1

公开(公告)日：2019-10-03

申请号：US16254977

申请日：2019-01-23

Applicant: Soltrium Advanced Materials Technology, Ltd Shenzhen

Inventor： Xiaoli Liu ,  Fengzhen Sun ,  Yu Li ,  Delin Li

IPC: H01L31/0224 ,  H01L31/068 ,  H01L31/18 ,  H01B1/22 ,  B22F1/00 ,  B41M3/00 ,  B41M7/00

Abstract: A front-side conductive paste for a crystalline silicon solar cell is provided. The front-side conductive paste for a crystalline silicon solar cell includes, in parts by weight, 80.0-93.0 parts of a metal powder, 6.0-15.0 parts of an organic carrier, and 1.0-5.0 parts of an oxide etching agent, where based on 100% by mole of the oxide etching agent, the oxide etching agent includes 15-30% of PbO; 25-40% of TeO2; 8.0-15.0% of Li2O; 9.0-20.0% of SiO2; 5.0-15.0% of Bi2O3; 0.5-10.0% of ZnO; and either one or both of 0.1-10.0% of MgO and 0.1-10.0% of CaO; and no more than 5.0% of an oxide of additional metal elements. The metal powder forms good ohmic contact with crystalline silicon substrate during the sintering process of the front-side conductive paste applied overlying an insulation film on the substrate. Finally, a front-side electrode of low contact resistance, good electrical conductivity, and strong adhesion is obtained.