Lithium battery membrane trimming and taking-up equipment and method thereof

A lithium battery diaphragm and edge trimming technology, which is applied in the direction of winding strips, sending objects, thin material processing, etc., can solve problems such as uneven edges and burrs, and achieve the effect of flat film rolls, avoiding deformation, and avoiding wrinkles

Active Publication Date: 2019-05-07
江西省世道新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The lithium battery separator produced by dry single drawing will have uneven edges and burrs due to defects in the casting stage and deformation in the thermal stretching stage

Method used

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  • Lithium battery membrane trimming and taking-up equipment and method thereof
  • Lithium battery membrane trimming and taking-up equipment and method thereof
  • Lithium battery membrane trimming and taking-up equipment and method thereof

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Embodiment Construction

[0040] The technical solution of this patent is preferably described in detail below in conjunction with specific embodiments.

[0041] see Figure 1-8 , a lithium battery diaphragm trimming and winding device, including a traction mechanism, a flattening mechanism, a shaping mechanism and a winding mechanism, the traction mechanism includes a traction roller 1 and a pressure roller 2 on the top of the traction roller 1; the flattening mechanism includes an arc shaped flattening roller 3; the shaping mechanism includes two follow-up rollers 4 and an extension mechanism 5 and a trimming mechanism 6 located between the two follow-up rollers 4; the winding mechanism includes a winding roller 7; the diaphragm passes through the traction mechanism Afterwards, it is initially flattened by the curved roller, then flattened again by the shaping mechanism and trimmed, and then the winding is completed by the winding roller 7;

[0042] The stretching mechanism 5 includes a movable stre...

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Abstract

The invention discloses lithium battery membrane trimming and taking-up equipment and a method thereof. The lithium battery membrane trimming and taking-up equipment comprises a traction mechanism, aflattening mechanism, a shaping mechanism and a taking-up mechanism; the traction mechanism comprises a traction roller and a pressing roller at the top of the traction roller; the flattening mechanism comprises an arc-shaped flattening roller; the shaping mechanism comprises two following-up rollers, an extending mechanism arranged between the two following-up rollers and a trimming mechanism; the taking-up mechanism comprises a taking-up roller; and a membrane passes through the traction mechanism and then passes through the arc-shaped roller to be initially flattened, the membrane passes through the shaping mechanism to be flattened again and trimmed, and taking-up is finished through the taking-up roller. According to the lithium battery membrane trimming and taking-up equipment and the method thereof, taking-up is carried out after a plurality of times of flattening, deformation of the membrane during taking-up can be effectively avoided, a membrane roll is enabled to be smooth, and wrinkles tendon protrusions and the like are prevented; a trimming slicer mechanism is matched with the extending mechanism at the front end to achieve a trimming effect with high precision, the membrane is shaped, linear edge lines are provided, the product quality of the lithium battery membrane is improved, and the product quantity of subsequent slitting processing is increased.

Description

technical field [0001] The invention relates to the technical field of lithium battery diaphragm processing, in particular to a lithium battery diaphragm trimming and winding device. Background technique [0002] In the structure of lithium batteries, the separator is one of the key inner components. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. A separator with excellent performance plays an important role in improving the overall performance of the battery. The main function of the diaphragm is to separate the positive and negative electrodes of the battery, prevent the two electrodes from contacting and short circuit, and also have the function of allowing electrolyte ions to pass through. The separator material is non-conductive, and its physical and chemical properties have a great influence on the performance of the battery. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H23/26B65H35/02B65H20/02
Inventor 黄征峰
Owner 江西省世道新能源科技有限公司
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