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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

Active 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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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, on the one hand, the production time and cost of PREC solar cells are wasted; on the other hand, while the PREC solar cells are reworked through the whole process, the thickness of the crystalline silicon in the PREC solar cells will be further reduced, so that the reworked PREC Solar cells are prone to problems such as splits, which further lead to a reduction in the quality rate of finished PREC solar cells after rework

Method used

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  • Reworking process of PERC reworking battery
  • Reworking process of PERC reworking battery
  • Reworking process of PERC reworking battery

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Here, it should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, and the steps related to the present invention are omitted. Other details that don't really matter.

[0025] Additionally, it should be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also Other elements not expressly listed, or inherent to the process, method, article, or apparatus are also included.

[0026] see fi...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/042
CPCH01L31/18H01L31/042Y02E10/50Y02P70/50
Inventor 杨金鑫梅玲唐正海谢凤兰杨诗义
Owner 盐城阿特斯阳光能源科技有限公司
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