Workflow
晶硅电池铜代银方案
icon
Search documents
晶硅电池铜代银方案还有多久产业化? | 投研报告
Group 1 - The core process of metallization in photovoltaic cell production is crucial for current extraction, impacting conversion efficiency, cost, and long-term reliability [2][5] - The main metallization techniques include contact methods (such as screen printing) and non-contact methods (like laser transfer and copper plating) [3][5] Group 2 - The evolution of silicon cell metallization has transitioned from vacuum deposition in the 1940s-50s to multi-layer deposition and copper/nickel plating in the 60s-70s, driven by aerospace demands [4] - Since the 1980s, screen printing with silver and aluminum pastes has dominated, but rising silver prices and increased competition have led to the emergence of copper as a cost-reducing alternative [5] Group 3 - Challenges in the industrialization of copper pastes include oxidation due to copper's reactivity, which can compromise electrical conductivity [6] - Solutions to prevent copper oxidation involve using protective gases to limit oxygen exposure and applying protective coatings on copper particles [6]