一种P型正面银浆用玻璃粉及其制备方法

By compounding 8 to 12 kinds of metal compounds, the performance of glass powder for P-type crystalline silicon solar cells is improved, the problems of insufficient ohmic contact and welding tensile strength are solved, the cell efficiency and durability are improved, and a dense network structure is formed.

CN117023996BActive Publication Date: 2026-07-17GUANGDONG NANHAI ETETB TECH CO LTD +1
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Patent Information

Application Number
CN202310936321.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-28
Publication Date
2026-07-17
Estimated Expiration
2043-07-28

AI Technical Summary

Technical Problem

The glass powder in existing P-type crystalline silicon solar cells is insufficient in forming good ohmic contacts and maintaining cell efficiency, and the welding pull of the silver grid lines after screen printing is insufficient, resulting in short solar cell durability and lifespan.

Method used

By using a combination of 8 to 12 different metal-containing compounds, including framework network supporting compounds and framework network reinforcing compounds, the performance of glass powder is improved through compounding, forming a multiphase composite system of microcrystalline phase and glass phase, reducing softening and melting temperature, and improving the compactness of network structure.

Benefits of technology

It improves the hardness and particle size uniformity of glass powder, enhances the wetting ability and welding pull of silver paste, ensures battery efficiency and durability, reduces melting temperature, and forms a dense network structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及光伏导电材料领域，尤其涉及一种P型正面银浆用玻璃粉及其制备方法。P型正面银浆用玻璃粉为8～12种不同的含金属化合物的组合物，含金属化合物包括骨架网络支撑化合物，骨架网络增强化合物 / 骨架网络修饰化合物。本申请提供的一种P型正面银浆用玻璃粉，其具有优异的硬度以及粒径的均一性，能够有效满足银浆用玻璃粉在各种需求下的使用性能，保持良好的玻璃体性能。
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Citation Information

Patent Citations

  • Front-side conductive paste of crystalline silicon solar cell, preparation method thereof, and solar cell

    CN110603606A

  • Glass powder for front silver electrode of PERC crystalline silicon solar cell and preparation method of glass powder

    CN113698103A

  • Silicon-lithium-lead system and conductive slurry and preparation method thereof

    CN114409249A

  • Glass powder, conductive silver paste, preparation method of conductive silver paste, front electrode and silicon solar cell

    CN114550969A

  • Modified glass powder for front silver paste of solar cell as well as preparation method and application of modified glass powder

    CN115394469A