关键词: 光伏, 电池封装材料, 乙烯-乙酸乙烯酯共聚物, 聚烯烃弹性体, 生产技术, 市场分析

Abstract:

Photovoltaic power generation is an important way for China to optimize its energy consumption structure, build a new and renewable energy system, and achieve the "dual carbon" goal, demonstrating broad prospects. The structure and film classification of photovoltaic cells are introduced, and the production technology status and production and consumption structure of ethylene vinyl acetate copolymer (EVA) and polyolefin elastomer (POE) at home and abroad are analyzed in detail. Meanwhile, the development prospects of the photovoltaic film industry are predicted and analyzed. The conclusion is that EVA film is the mainstream material for photovoltaic cell film, and with the continuous progress of battery technology, the iteration of battery packaging film technology is accelerating. The consumption demand for POE film and multi-layer co-extruded film (EPE) film is constantly expanding. At present, EVA adhesive film in China is completely domestically produced. Driven by market demand, the research and development of POE adhesive film had become a major hot topic of concern in the new material industry. Project research and development and investment construction activities are very intensive, and POE technology progress is rapid. Copolymers (α-olefin), metallocene catalyst and high-temperature solution polymerization technology are gradually breaking through. 2025 will usher in a period of concentrated release of domestic POE production capacity, supporting the accelerated localization of POE film production and supply, and effectively promoting the high-quality development of China's photovoltaic and new energy industries.

Key words: photovoltaics, battery packaging materials, ethylene-vinyl acetate copolymer, polyolefin elastomers, production technology, market analysis