Lithium battery spot welding device

Abstract

The invention provides a lithium battery spot welding device, and relates to the field of lithium batteries. The lithium battery spot welding device comprises opposite side plates, a rotating shaft located between the two side plates, a first motor, two vertical plates, connecting plates, spot welding machines, rotating wheels, pushing parts and driving parts; the first motor is fixed on the outer side surface of one side plate, and an output shaft of the first motor is fixedly connected with one end of the rotating shaft; the two vertical plates are located between the side plates and symmetrically arranged, and the two ends of each vertical plate are in sliding connection with vertical grooves formed in the inner side faces of the side plates correspondingly; the several connecting plates are located between the vertical plates, the several spot welding machines are fixed to the connecting plates, and the two ends of each connecting plate are located in inner side grooves formed in the inner side faces of the vertical plates; the rotating wheels are uniformly distributed on the rotating shaft, are used for winding nickel sheets and are in one-to-one correspondence with the connecting plates; and the pushing parts are used for driving the vertical plates to move up and down, and the driving parts are used for driving the connecting plates to move up and down. According to the device, each row of lithium batteries in a jig can be welded through one-time spot welding, operation is easy, and the spot welding efficiency of the lithium batteries is greatly improved.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a lithium battery spot welding device. Background technique [0002] A lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution, so this battery is also called a lithium metal battery. Different from other batteries, lithium batteries have the characteristics of high charging density, long life and high unit cost. Therefore, many devices that need electricity now need to combine lithium batteries together to form a lithium battery pack for power supply. Here, nickel sheets are generally spot welded. The way to connect each lithium battery. [0003] The applicant found that: during spot welding, the lithium batteries are generally arranged in a rectangular array in the jig, and then the operator moves the jig so that the lithium batteries are moved directly under the spot welding machine i...

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Problems solved by technology

[0004] In view of this, the purpose of one or more embodiments of this specification is to propose a lithium battery spot welding device to solve the problem of placing lithium batteries in a jig to form a rectangular array in the prior art during spot welding. , and then the operator moves the jig so that the lithium battery moves to the right below the spot welding machine in turn, and then welds. This method is cumbersome to operate and has technical problems such as low welding efficiency.

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