Laser window opening process and equipment for back electrode of flexible gallium arsenide thin film battery
A thin-film battery, laser window technology, applied in laser welding equipment, metal processing equipment, welding equipment and other directions, can solve the problems of poor processing effect, low processing efficiency, complex process and so on
Active Publication Date: 2021-04-23
CHANGZHOU LASFOCUS LASER EQUIP
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Problems solved by technology
[0003] In the current field of cell processing, the process is complicated, especially coding and cutting are divided into two processes, and each process is processed by a single cell, the processing efficiency is low, and the processing effect is poor.
Method used
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specific Embodiment approach
[0021] A laser window opening process for the back electrode of a flexible gallium arsenide thin film battery, which:
[0022] a. The feeding machine pulls out the cells from the flower basket one by one, and places the cells on the first station of the turntable through the transmission of the channel belt and the suction of the suction cup, and the cells are fixed by vacuum adsorption with the front facing down;
[0023] b. The turntable transfers the cell to the second station; bottom lighting and imaging locate the cell according to the characteristic pattern on the front of the cell, after positioning, the first scanning head emits light, and prints the serial number of the cell on the designated area on the back of the cell and Two-dimensional code; at the same time, the second scanning head also emits light, and opens a window for the back electrode of the cell at the designated position;
[0024] d. Turn the turntable to transfer the cells to the third station; inspect...
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Abstract
The invention discloses a laser window opening process and equipment for the back electrode of a flexible gallium arsenide thin-film battery. The materials are fed by a feeder and sent to the loading and unloading unit, and then the rotating platform drives the materials to enter the positioning unit and the coding and cutting unit respectively. And the detection unit, after each unit is completed, enter the next unit, and finally return to the loading and unloading unit for unloading, completing a whole process. The coding and cutting unit of the present invention can complete the functions of coding and cutting at the same time, relying on two laser paths to work at the same time, each optical path can be controlled independently, and each optical path can make the focus height, spot size, and Power can be adjusted independently.
Description
technical field [0001] The invention relates to a process for cutting gallium arsenide flexible thin-film battery sheets and laser equipment thereof, belonging to the field of thin-film battery production equipment in the photovoltaic industry. Background technique [0002] One of the main performance indicators of solar cells is their energy conversion efficiency. Flexible gallium arsenide cells are photovoltaic products with extremely high power generation efficiency (29%) and the lowest average weight per watt. In recent years, the application of flexible GaAs batteries in high-end fields such as mobile power stations and drones has stimulated the rapid development of the manufacturing industry and the industrialization of flexible GaAs batteries. [0003] In the field of cell processing at present, the process is complex, especially coding and cutting are divided into two processes, and each process is processed by a single cell, the processing efficiency is low, and the...
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IPC IPC(8): H01L31/18H01L21/67H01L21/677B23K26/70B23K26/38B23K26/362
CPCB23K26/362B23K26/38B23K26/702H01L21/67092H01L21/67766H01L31/1876Y02P70/50
Inventor 郦俐王敏朱俊
Owner CHANGZHOU LASFOCUS LASER EQUIP