Battery cell manufactured bottom plate carrying device

Abstract

The invention discloses a battery cell manufactured bottom plate carrying device which comprises a carrying single sliding rail which is horizontally arranged and used for bearing and horizontally transporting a carrying platform. The lifting assembly is arranged at the end of the carrying single sliding rail and used for bearing the carrying platform and driving the carrying platform to move in the vertical direction after being in butt joint with the carrying single sliding rail. And the carrying platforms are used for bearing the battery cell bottom plate and automatically pressing or loosening the battery cell bottom plate, the number of the carrying platforms is at least two, and the at least two carrying platforms are arranged on the carrying single sliding rail in a sliding mode. Closed-loop circulation supply of the outer plates is achieved, the outer plates can be automatically clamped and fixed and loosened through single power, and the carrying stability of the outer plates is effectively guaranteed.

Description

technical field [0001] The invention relates to the field of lithium-ion power batteries, in particular to a bottom-plate carrying device made of electric cores suitable for the manufacturing process of pole pieces of lithium-ion power batteries. Background technique [0002] Lithium battery refers to batteries containing lithium in the electrochemical system, including metal lithium, lithium alloys, lithium ions, and lithium polymers. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium battery is a rechargeable battery that mainly relies on lithium ions to move between positive and negative electrodes to work. A battery that generally uses a material containing lithium as an electrode is a representative of a modern high-performance battery. As the country vigorously promotes the development of new energy, the demand for lithium-ion power batteries in all walks of life is increasing day by day. In the co...

AI Technical Summary

Problems solved by technology

For the strip lamination process, the positive and negative plates are alternately placed on the lamination platform during lamination, and the strip-shaped diaphragm is pulled back and forth on the lamination platform, and covered on the positive or negative plates after the positive or negative plates are stacked. The surface of the negative electrode sheet is then cut off the diaphragm; in this lamination method, the strip diaphragm is tensioned and pulled back and forth during the lamination process, there is stress inside, and the surface of the diaphragm will wrinkle after cutting, which will affect the quality of the cell

For the single-piece stacking process, the diaphragm is cut into a single-piece structure before stacking. After the positive and negative plates are stacked, the single-piece diaphragm is stacked on the surface of the positive or negative plate to achieve lamination. This lamination process requires many The first time to take the diaphragm and stack the diaphragm, resulting in low lamination efficiency. In order to ensure the position accuracy of each lamination, the diaphragm needs to be aligned before lamination, and the lamination position accuracy is difficult to effectively guarantee.

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