Vacuum drying apparatus of electrode plate for secondary battery and drying method therefor

Abstract

The present invention relates to a drying apparatus of an electrode plate for a secondary battery, and more specifically, to a drying apparatus of an electrode plate for a secondary battery which includes: a door for inserting and removing an electrode plate; a housing unit(10) wherein a drying chamber(11), which is shielded from the outside by an upper wall unit, a side wall unit, and a lower wall unit, is formed; a heating means(20) formed on the top of the drying chamber(11); a first elevator(30) for lifting the electrode plate (S) laminated on a first loading plate(31) to a predetermined height; a transfer means(50) for transferring the highest electrode plate(S) among electrode plates loaded on the first elevator to a second elevator(40); and a second elevator(40) lowering a second loading plate(41) to a predetermined height while loading the electrode plate(S) supplied from the first elevator(30) to a second loading plate(41) by the transfer means(50).

Description

technical field [0001] The present invention relates to a secondary battery electrode plate drying device and method used in the electrode plate drying process in the secondary battery electrode plate manufacturing process. Background technique [0002] In general, as the structure of electronic products such as automobiles, mobile phones, video cameras, and portable PCs becomes lighter and more functional, many studies are conducted on batteries used as power sources of electronic products and their production processes. This battery can be used continuously by charging / discharging. [0003] Generally, batteries such as nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries are used as power sources of electronic products. Among them, lithium secondary batteries are widely used in consideration of life and capacity. [0004] The above-mentioned lithium secondary batteries are classified into lithium metal batteries,...

AI Technical Summary

Problems solved by technology

[0009] In particular, in the case of a substrate on which a carbon coating layer is formed, the carbon has high water absorption and, conversely, extremely low thermal conductivity, so it is difficult to dry uniformly from the surface to the inside of the coating layer.

In addition, in the case of the carbon coating layer, if the temperature inside the drying chamber reaches 200 to 300°C, it will deform and cause peeling from the current collector.

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