Method, device and equipment for production control of battery sheet
By performing PL bubble detection on the photoluminescence images of photovoltaic cells, identifying and analyzing the changing trends, and adjusting production parameters, the problem of high number of non-degraded dark cells in photovoltaic cell manufacturing was solved, thus improving yield and efficiency.
CN121285088BActive Publication Date: 2026-07-21CHUZHOU JIETAI NEW ENERGY TECH CO LTD
Patent Information
- Application Number
- CN202511464765.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-07-21
- Estimated Expiration
- 2045-10-14
AI Technical Summary
Technical Problem
In the manufacturing process of photovoltaic cells, the number of non-degraded dark cells is too high, resulting in a low yield.
Method used
By acquiring photoluminescence images of solar cells produced in multiple adjacent historical periods, PL bubble detection is performed to identify PL bubble-type solar cells, their changing trends are analyzed, and the phosphorus diffusion temperature and LP oxidation temperature are adjusted according to the trends to control the solar cell production process.
Benefits of technology
This improved the production yield and efficiency of solar cells, reduced the proportion of solar cells with defects that are easily broken down, and optimized the quality of solar cells.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121285088B_ABST
Abstract
The application relates to a battery piece production control method, device and equipment. The method comprises the following steps: acquiring photoluminescence images of battery pieces produced in multiple adjacent historical periods; performing PL bubble detection on each photoluminescence image to obtain a first quantity of first target images corresponding to each historical period; the first target image is a photoluminescence image with a PL bubble; determining a ratio of the first quantity corresponding to the same historical period to a total quantity of battery pieces to obtain a first proportion corresponding to each historical period; obtaining a first change trend of PL bubble type battery pieces according to the first proportion corresponding to each historical period respectively; controlling a phosphorus expansion propulsion temperature and / or an LP oxidation temperature of subsequent battery pieces based on the first change trend; the LP oxidation temperature is a reaction temperature in a low-pressure chemical vapor deposition process of the battery pieces. The method can improve the efficiency in the production and manufacturing process of photovoltaic battery pieces.
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Citation Information
Patent Citations
Photovoltaic cell black center and black corner detection method, device and equipment based on machine vision
CN110866916A
Phosphorus diffusion control process for photovoltaic cell production and control system thereof
CN117117040A