一种光伏电池片及其制备方法、光伏组件和光伏系统

By using laser processing and uniformly depositing a passivation layer, the problem of inconsistent colors after cutting photovoltaic cells was solved, thus achieving a consistent appearance of photovoltaic modules.

CN122054760BActive Publication Date: 2026-07-17CHINT NEW ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINT NEW ENERGY TECH CO LTD
Filing Date
2026-04-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the cutting process of photovoltaic cells, the PN junction in the cutting area is damaged, resulting in different passivation layer thicknesses in the cutting and non-cutting areas, which causes inconsistent appearance colors of photovoltaic modules.

Method used

In the process of photovoltaic cell fabrication, the first doped oxide layer and diffusion layer of the preset slotted area are removed by laser treatment, and a passivation layer is uniformly deposited on both the front and back sides to ensure the surface consistency of the preset slotted area and the non-preset slotted area and avoid the difference in passivation layer thickness.

Benefits of technology

This achieves color consistency on the front of the photovoltaic cells, meets the appearance requirements of photovoltaic modules, and enhances the aesthetic appeal of the modules.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122054760B_ABST
    Figure CN122054760B_ABST
Patent Text Reader

Abstract

本发明公开了一种光伏电池片及其制备方法、光伏组件和光伏系统,该光伏电池片的制备方法包括在表面制绒后的硅衬底的正面,形成第一扩散层和第一掺杂氧化层;采用激光对硅衬底的正面进行激光划线开槽,去除预设开槽区的第一掺杂氧化层;去除硅衬底的背面的绕镀第一掺杂氧化层;对预设开槽区中的第一扩散层进行去除并制绒;对硅衬底的背面依次生长介质层和第二扩散层;去除硅衬底上的第二掺杂氧化层和第一掺杂氧化层;在硅衬底的正面沉积第一钝化层,在硅衬底的背面上形成第二钝化层;对硅衬底进行电极印刷和烧结,获得光伏电池片。本申请制备形成的光伏电池片正面的颜色一致性良好,满足光伏组件的外观要求。
Need to check novelty before this filing date? Find Prior Art