Reworking process of PERC reworking battery

A battery and process technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of waste of production time and cost, the reduction of the quality rate of PREC solar cells, and the easy occurrence of cracks in PREC solar cells, so as to reduce the cost of rework. Effect
CN112951946AActive Publication Date: 2021-06-11盐城阿特斯阳光能源科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
盐城阿特斯阳光能源科技有限公司
Publication Date
2021-06-11

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Abstract

The invention provides a reworking process of a PERC reworking battery. The reworking process is used for reworking preparation of the PERC reworking battery generated in a diffusion process and / or an etching process in a PERC solar battery preparation process. The reworking process of the PERC reworking battery comprises the following steps: S1, taking a PERC reworking battery to be reworked, and cleaning the PERC reworking battery by adopting a cleaning solution so as to remove dirt on the surface of the PERC reworking battery; S2, cleaning the cleaned PERC rework battery again by using an acid solution so as to remove a surface oxide layer of the PERC rework battery; S3, placing the PERC rework cell with the surface oxide layer removed in a circulation device, and preparing the PERC solar cell by using a PERC preparation process. According to the reworking process of the PERC reworking battery, the flow of the existing PERC reworking process is simplified, and the reworking cost of the PERC reworking battery is reduced while the reworking efficiency of the PERC reworking battery and the high-quality rate of the reworked PERC solar battery are improved.
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Description

technical field

[0001] The invention relates to a rework process of a PERC rework battery, belonging to the technical field of solar battery processing. Background technique

[0002] With the continuous development of solar technology, the improvement of the efficiency of conventional screen-printed crystalline silicon solar cells has been very limited. Passivated Emitter Rear Contact (PERC) solar cells have gradually occupied the conventional screen due to their advantages of high efficiency and large-scale production. Market space for printed crystalline silicon solar cells.

[0003] In fact, in the current manufacturing process of PREC solar cells, PERC solar cells that are tested for thinning, hydrophilicity, and insulation resistance during the PERC etching process, or contaminated by finger contact during the PERC etching process PERC solar cells, or abnormal PERC solar cells caused by mechanical blocking during the continuous production process of PERC solar cells ar...

Claims

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