Isolating film slitting method and isolating film slitting system

A technology of isolation film and preset distance, applied in the directions of sending objects, thin material processing, transportation and packaging, etc., can solve the problems of unstable slitting tension, poor slitting quality of isolation film, limited improvement range, etc. The effect of cutting quality, reducing battery manufacturing cost and improving utilization rate

Inactive Publication Date: 2017-03-22
QINGHAI CONTEMPORARY AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of this method is limited, and the width of the leftover material on one side still needs to be 5-8mm. At the same time, there are still problems such as unstable slitting tension and poor slitting quality of the isolation film.

Method used

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  • Isolating film slitting method and isolating film slitting system
  • Isolating film slitting method and isolating film slitting system
  • Isolating film slitting method and isolating film slitting system

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Embodiment Construction

[0078] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0079] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0080] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0081] It should be understood that the term "an...

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Abstract

The invention relates to the technical field of batteries, in particular to an isolating film slitting method and an isolating film slitting system. An isolating film master slice material is slit into multiple auxiliary slice materials through the isolating film slitting method. The multiple auxiliary slice materials at least comprise a first side edge auxiliary slice material and a second side edge auxiliary slice material. The isolating film slitting method comprises the steps that firstly, the width W1 of the first side edge auxiliary slice material and the width W2 of the second side edge auxiliary slice material are detected; and secondly, according to the width W1 of the first side edge auxiliary slice material and the width W2 of the second side edge auxiliary slice material, and the position of a slitting device of the isolating film slitting system and / or the position of an uncoiling device of the isolating film slitting system are / or controlled, so that the widths of the multiple auxiliary slice materials obtained after slitting are target widths. By the adoption of the isolating film slitting method and the isolating film slitting system, offcut-free slitting of isolating films is achieved, the situation that in the prior art, in order to improve the slitting quality, reduce wavy edges and guarantee the widths of the isolating films obtained after slitting, offcut needs to be reserved on the two edges of the master slice material is avoided, the utilization rate of the isolating films is improved, and the manufacturing cost of the batteries is greatly reduced.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a separator cutting method and a separator cutting system. Background technique [0002] At present, after the separator supplier provides the separator substrate with a specified width, the battery manufacturer will apply a ceramic layer or an adhesive layer, and then cut the processed separator to obtain a separator of the required width. In the existing separation film slitting technology, in order to improve the cutting quality and reduce the wavy edge and ensure the width of the separation film after cutting, it is necessary to reserve leftovers on both sides of the separation film of the mother sheet material, that is, the width of the mother sheet material is greater than that after cutting. The sum of the widths of the sub-sheets of the separator used. Usually, the width of leftover material on one side is 5-10 mm. Adding up the two sides, an average of 15 mm...

Claims

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Application Information

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IPC IPC(8): B65H35/02B65H35/00
CPCB65H35/02B65H35/008
Inventor 郭彬彬秦猛
Owner QINGHAI CONTEMPORARY AMPEREX TECH
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