A continuous welding process for charging and discharging circuits of lithium batteries

Abstract

The invention discloses a continuous welding process for a charging and discharging circuit of a lithium battery, comprising the following steps: covering a nickel strip with an aluminum strip to form a carrier strip, stamping the carrier strip to form a stamping strip, and the stamping strip presents continuously arranged connection components; the connection components It includes a square frame and a positive connection piece and a negative connection piece located in the square frame; the positive connection piece is a nickel sheet, the negative connection piece is provided with a welding piece, and the negative connection piece is a nickel-aluminum composite piece; the positive connection piece and the negative connection piece are opposite to each other. There is a gap between the sides, and the other sides of the positive and negative connecting pieces are provided with connecting strips connected to the square frame; place the thermal protector on the welding workbench, and then place the stamping strip on the welding workbench, The side of the stamping strip covered with aluminum strip faces up, one end of the heat protector is welded on the positive connecting piece, and the other end of the heat protector is welded on the nickel surface of the welding piece of the negative connecting piece; the finished product is obtained after welding. In the present invention, the production efficiency is greatly improved, and the yield of finished products is greatly improved.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a continuous welding process for charging and discharging circuits of lithium batteries. Background technique [0002] In the production process of lithium battery charging and discharging circuit, the positive connecting piece, negative connecting piece, thermal protector, etc. are small in size, and it is inconvenient to handle and weld. In the prior art, workers need to connect the positive connecting piece, negative connecting piece, Negative connecting pieces and thermal protectors can only be welded after being properly placed one by one. It takes too long to make a lithium battery charging and discharging circuit. On the one hand, it is difficult to align and bend easily during welding. On the other hand, workers are affected by the working light or their eyes are tired after long-term operation. Aluminum and nickel materials are more expensive, and the yield rate is grea...

AI Technical Summary

Problems solved by technology

[0002] In the production process of lithium battery charging and discharging circuit, the positive connecting piece, negative connecting piece, thermal protector are small in size, and it is inconvenient to handle and weld. In the prior art, workers need to connect the positive connecting piece, negative connecting piece, Negative connecting pieces and thermal protectors can be welded only after they are properly placed one by one. It takes too long to make a lithium battery charging and discharging circuit.

On the one hand, alignment is difficult and easy to bend during welding. On the other hand, workers are affected by the working light or their eyes are tired after long-term operation. It is easy to confuse the nickel-aluminum welding surface of the negative connection piece, resulting in a greatly reduced yield. Aluminum and nickel materials are more expensive, and the yield rate is greatly reduced, resulting in greatly increased economic losses and increased business costs

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