Welding method, device and battery sheet of ibc full back electrode cell
A cell and solar cell technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problem of high defective product rate, reduce the defective product rate, avoid unreliable welding, and simplify the welding process.
Active Publication Date: 2021-11-26
MAODI SOLAR TECH DONGGUAN CO LTD
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[0003] The present application provides a welding method, device and battery sheet of IBC full back electrode battery sheet, which can solve the technical problem of high defective rate of battery sheet welding in the prior art
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[0031] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0032] An embodiment of the present invention provides a welding method for IBC full back electrode cells, for details, please refer to figure 2 , figure 2 It is a schematic flow chart of the steps of the welding method of the IBC full back electrode battery sheet in the embodiment of the present invention. In this embodiment, the above me...
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The invention discloses a welding method and device for an IBC full-back electrode battery sheet and the battery sheet. The battery sheet includes a negative electrode array and a positive electrode array, and the negative electrode array and the positive electrode array are relatively independently arranged. The method includes: putting the battery slice into the material box of the automatic placement machine, and moving the battery slice to the top of the battery component PCB board by the suction nozzle on the automatic placement machine; attaching the pad at the bottom of the battery slice to the battery The soldering pad of the component PCB board; welding the attached battery sheet and the battery component PCB board. In the present invention, since the negative electrode array and the positive electrode array are relatively independently arranged, the precision requirements for the welding equipment can be reduced, the welding process can be effectively simplified, and the use of a fully automatic chip mounter can also avoid battery chips and The problem of unreliable soldering to the pads on the PCB after the back of the solar cells are oxidized due to personal contact can effectively reduce the rate of defective products.
Description
technical field [0001] The invention relates to the technical field of battery sheet welding, in particular to a welding method and device for an IBC full-back electrode battery sheet and a battery sheet. Background technique [0002] At present, in the existing battery sheet welding method, the gap between the positive and negative electrodes on the back is small, generally 1.2mm, and the layout generally adopts the method of negative electrode-positive electrode-negative electrode-positive electrode... For details, please refer to figure 1 , figure 1 It is a schematic diagram of electrode distribution in the battery sheet welding process in the prior art. However, this welding process has higher requirements on equipment precision, and the rate of defective products in the welding process is higher. Contents of the invention [0003] The present application provides a welding method, device and battery sheet for IBC full back electrode battery sheet, which can solve th...
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IPC IPC(8): H01L31/05H01L31/18
CPCY02E10/50Y02P70/50
Inventor 高智怡田庆
Owner MAODI SOLAR TECH DONGGUAN CO LTD