Preparation method of silver-coated copper powder and application thereof
Uniform and dense silver-coated copper powder was prepared by combining copper powder pretreatment and silane coupling agent modification with liquid-phase reduction deposition method. This solved the problems of uneven coating, environmental pollution and easy oxidation of copper core in the existing technology, met the high performance requirements of N-type photovoltaic cells, and had excellent dispersibility and long-term stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA ENFI ENG CORP
- Filing Date
- 2026-06-03
- Publication Date
- 2026-07-21
AI Technical Summary
Existing silver-coated copper powder preparation technologies suffer from problems such as uneven coating, significant environmental pollution, easy oxidation of copper cores, difficulty in controlling reaction conditions, poor dispersion stability, and insufficient adaptability, which cannot meet the high-performance requirements of N-type photovoltaic cells.
By employing copper powder surface pretreatment, silane coupling agent modification, and liquid-phase reduction deposition, and using environmentally friendly media such as dilute hydrochloric acid and ascorbic acid, reaction parameters are precisely controlled to form a uniform and dense silver layer, ensuring the dispersibility and long-term stability of the copper powder.
This method enables the efficient preparation of silver-coated copper powder, improving conductivity and oxidation resistance, solving environmental pollution problems, meeting the high-efficiency carrier transport requirements of N-type photovoltaic cells, and exhibiting excellent dispersibility and long-term stability.
Smart Images
Figure CN122425204A_ABST