Secondary battery winding pin and battery winding method employing the winding pin

A technology for secondary batteries and battery rolls, applied in secondary batteries, secondary battery manufacturing, circuits, etc., can solve problems such as failure to charge, waste diaphragms, and increase in arc, so as to reduce production costs and prolong service life. , the effect of uniform charge and discharge

A technology for secondary batteries and battery rolls, applied in secondary batteries, secondary battery manufacturing, circuits, etc., can solve problems such as failure to charge, waste diaphragms, and increase in arc, so as to reduce production costs and prolong service life. , the effect of uniform charge and discharge

CN1992414AInactive Publication Date: 2007-07-04BYD CO LTD
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  • Secondary battery winding pin and battery winding method employing the winding pin
  • Secondary battery winding pin and battery winding method employing the winding pin
  • Secondary battery winding pin and battery winding method employing the winding pin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The secondary battery rolling pin of the present invention is mainly provided with a first member 3 and a second member 4, which are two roughly semi-cylindrical castings, wherein the first member 3 and the second member 4 are formed by arc surfaces a, The columnar body surrounded by the large inclined plane b and the small inclined plane c, the first member 3 and the second member 4 are respectively formed with pivot holes 31, 41 between the respective large and small inclined planes b and c, and the first member 3 When the large and small inclined surfaces b and c of the second member 4 are respectively opposite to the large and small inclined surfaces b and c of the second member 4, pivot shafts 5 are inserted in these pivot joint holes 31 and 41 to form a large jaw E and a small jaw F. A clip-shaped body with two jaws, the periphery of the clip-shaped body is in the shape of a cylinder as a whole. In addition, in the large jaw E formed by the large slope b of the fi...

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Abstract

This invention relates to a secondary battery volume needle, which primarily has the first component and the second component, in particular, the said first component and the second component connecting to form the two joints folder, the periphery of the folder being cylinder-shape. Using the said secondary battery volume needle winding method, especially assemble the folder to the motor; insert the anode slide head into the one joint of the folder, and clamping, and starting the motor; when the anode slide around the folder surrounding half, shutting down the motor, and inserting and positioning the cathode slide with two sides having separated film; continuing to activate the motor until the anode and cathode slide all volumes to stop motor; finally, pulling out the folder. The secondary battery volume needle is applicable to improving the secondary battery winding effect, and the battery winding method using the structure volume needle can extend battery using life, and save the battery raw materials.

Description

technical field [0001] The invention relates to a secondary battery winding needle and a battery winding method using the winding needle, in particular to a secondary battery winding needle suitable for improving the winding effect of a secondary battery and prolonging the service life of the battery 1. The battery winding method using the winding needle to save battery raw materials. Background technique [0002] Taking the existing lithium-ion battery winding technology as an example, it is a technology that uses two flat plates to clamp the diaphragm first, and then position the positive and negative electrode sheets 1 and 2 for winding. However, there are the following defects: the rolled-out pole core is elliptical, and as the number of winding layers increases, the arc increases (as shown in Figure 1). Especially after the battery pole core is flattened, the positive and negative electrode sheets 1 and 2 at the corners on both sides of the pole core after flattening c...

Claims

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Application Information

Patent Timeline
04 Jul 2007
Publication
CN1992414A
IPC
H01M10/04; H01M10/40; H01M10/0585
CPC
Y02E60/122; Y02E60/10; Y02P70/50
Inventors
路宇帅; 王建军