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Battery piece coating system

A coating system and cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of long waiting time and low production efficiency, and achieve the effect of improving utilization rate, improving production efficiency and reducing production cost.

Pending Publication Date: 2022-04-15
YINGKOU JINCHEN MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Taking the silicon-based heterojunction solar cell coating production line as an example, in related technologies, multiple PECVD process equipments are arranged in sequence on the production line, and intrinsic thin-film silicon layers are symmetrically deposited on the upper and lower surfaces of the crystalline silicon substrate by PECVD process equipment Then continue to utilize other PECVD process equipment to deposit N-type doped layer and P-type doped layer on the intrinsic thin-film silicon layer on the upper and lower surfaces, due to the intrinsic thin-film silicon layer, N-type doped layer, and P-type doped layer The coating time is different, and the production cycle of the production line is set according to the coating process with the longest duration, resulting in long waiting time for other processes and low production efficiency

Method used

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Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0036] In the description of this application, the "transportation direction" orientation or positional relationship is based on the attached figure 1 It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation and therefore should not be construed as limiting the application.

[0037] In related technologies, there are two main arrangements for the cell coating system using the PECVD process:

[0038] One is a chain arrangement, that is, each station is connected end to end in turn. After the cells enter the vacuum environm...

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Abstract

The embodiment of the invention provides a battery piece coating system which comprises a conveying line used for conveying battery pieces and a plurality of coating modules arranged beside conveying stations of the conveying line, the conveying line is provided with a plurality of conveying stations, and the battery pieces are conveyed between the coating modules and the conveying stations. The plurality of coating modules comprise a first coating module comprising at least one first coating device; comprising at least one second coating device; comprising at least one second coating device; comprising at least one fourth coating device; wherein the number of at least one of the first coating devices, the second coating devices, the third coating devices and the fourth coating devices is not less than two. According to the battery piece coating system in the embodiment of the invention, the probability of occurrence of the situation that the conveying line needs to wait for treatment of a single coating device and is empty on the whole is reduced, and the number of battery pieces treated in unit time is increased.

Description

technical field [0001] The invention relates to the technical field of photovoltaic equipment, in particular to a cell film coating system. Background technique [0002] With the increasing demand of human beings for energy saving and emission reduction, photovoltaic power generation has broad industrial prospects on a global scale. Among them, silicon-based heterojunction solar cells, with their simple preparation process, high conversion efficiency and high potential for cost reduction and efficiency increase, have attracted more and more attention from the industry and have become a hot spot in the industry. [0003] PECVD (plasma enhanced chemical vapor deposition, plasma enhanced chemical vapor deposition) process is in a relatively high vacuum environment, using a high frequency power supply to ionize the reactive gas into a plasma state to complete the surface coating process, which is widely used in the field of photovoltaic cell manufacturing. [0004] Taking the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/54C23C16/24C23C16/50H01L31/072H01L31/18
CPCY02E10/50
Inventor 杨宝海李义升李翔李轶军
Owner YINGKOU JINCHEN MACHINERY
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