本文深入理解磷扩散的基本原理，对扩散的现状进行分析，根据扩散原理，设计实验，得到高方阻电池片，从而改善电池转换效率。
We deeply understand the basic principle of Phosphorus diffusion . We analyze the current situation of the diffusion process , and design experiments to obtain high square resistance . Finally we improve the conversation efficiency .
方阻