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Slitter

A technology of slitting machine and angle, applied in the field of slitting machine, can solve problems such as defects, and achieve the effect of reducing defects and reducing contact area

Pending Publication Date: 2021-11-12
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the electrode plate is cut with a slitting machine, defects may be generated

Method used

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Embodiment Construction

[0039] Advantages and features of the present invention and methods of achieving them will be clarified through the embodiments described below with reference to the accompanying drawings. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Furthermore, the present invention is limited only by the scope of the claims. Like reference numerals denote like elements throughout.

[0040] Unless the terms used in the present invention are defined differently, all terms (including technical terms and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art. Furthermore, terms defined in commonly used dictionaries should not be ideally or excessively interpreted as having formal m...

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Abstract

A slitter according to an embodiment of the present invention to resolve a problem comprises: an upper blade which is positioned above an electrode plate and rotates to cut the electrode plate; and a lower blade which is positioned below the electrode plate so as to partially overlap with the upper blade and rotates to cut the electrode plate together with the upper blade, wherein the upper blade comprises: a first inner surface extending inclinedly from a tip formed at the lowermost end toward the lower blade; and an outer circumferential surface extending inclinedly from the tip toward the opposite side of the lower blade, wherein the first inner surface has an inclination at a first angle from a vertical line perpendicular to a rotation axis being the rotation center of the upper blade, and the outer circumferential surface has an inclination at a second angle from the vertical line.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority of Korean Patent Application No. 10-2019-0152443 filed on November 25, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a slitting machine, and more particularly, to a slitting machine capable of minimizing generation of foreign matter such as dust when cutting an electrode plate to manufacture an electrode, thereby reducing generation of electrode plate defects. Background technique [0004] In general, secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium-ion polymer batteries. Such secondary batteries have been used in such small products as digital cameras, P-DVD, MP3P, mobile phones, PDAs, portable game devices, electric tools, electric bicycles, and similar small products, such as electric vehicles and hybrid vehicles, which require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D19/04B23D35/00H01M4/04H01M10/052H01M10/058
CPCB23D19/04B23D35/001H01M4/04H01M10/052H01M10/058B21B2015/0021Y02P70/50B26D2001/0053B26D1/0006B26D2001/0066H01M10/04H01M4/139Y02E60/10B23D19/06B21B15/0007B26D2001/0046H01M4/0409
Inventor 尹悳重宋沅俊朴民修
Owner LG ENERGY SOLUTION LTD
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