我国N型晶硅太阳能电池专利现状及发展对策研究

Research on the Patent Status and Development Countermeasures of N-Type Crystalline Silicon Solar Cells in China

晶硅太阳能电池根据硅片的差异可分为掺杂硼元素的P型电池和掺杂磷元素的N型电池。随着P型电池效率达到瓶颈,N型晶硅太阳能电池的优势日益显著,逐渐成为太阳能电池未来发展的主流方向,其中以PERT、TOPCon、HJT、IBC以及HBC等为代表的高效N型电池成为了产业投资和市场关注的焦点。本文基于incoPat数据库,对我国申请人所申请的五种高效N型电池技术相关专利进行分析,从专利申请的基本情况和技术现状等方面,分析了我国N型电池相关的技术特征,以期揭示专利现状和发展趋势,为国内光伏产业发展提出相应的发展建议。

According to the difference of silicon wafers,crystalline silicon solar cells can be divided into P-type cells doped with boron element and N-type cells doped with phosphorus element.As the efficiency of P-type cells reaches the bottleneck,advantages of N-type crystalline silicon solar cells are becoming more and more remarkable,and will become the mainstream direction of the future development of solar cells industry.N-type cells represented by PERT,TOPCon,HJT,IBC and HBC have become the focus of industrial investment and market attention.Based on the incoPat database,this paper analyzes the situation of patents related to the five types of N-type battery technology applied by Chinese applicants,and analyzes the patent characteristics of N-type battery-related technologies from the basic situation of patent applications and technical status,in order to reveal the status and development trend,and put forward corresponding suggestions for the development of the domestic photovoltaic industry.