Winding device for secondary battery
A winding device and secondary battery technology, applied to secondary batteries, secondary battery manufacturing, lithium batteries, etc., can solve the problems of electrode assembly thickness thickening, secondary battery performance and short circuit effects, etc., to improve performance, Effects of improving safety and improving work efficiency
Active Publication Date: 2019-06-25
SAMSUNG SDI CO LTD
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Problems solved by technology
In addition, the thickness of the wound electrode assembly becomes thick, which affects the performance of the secondary battery and the occurrence of short circuits
Method used
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[0033] In the following detailed description, only certain exemplary embodiments of the present invention are shown and described, simply by way of illustration. As those skilled in the art will realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. In addition, when an element is referred to as being "on" another element, it can be directly on the other element or be indirectly on the another element with one or more intervening elements interposed therebetween. Also, when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element with one or more intervening elements interposed therebetween. Hereinafter, the same reference numerals refer to the same elements.
[0034] ...
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The present invention provides a winding device for a secondary battery, which includes: a supply part, a conveying roller, a cutting part and a winding part. The supply part supplies the first electrode plate, the second electrode plate and the separator. The transport roller transports the first electrode plate, the second electrode plate and the separator. The cutting part cuts the first electrode plate, the second electrode plate and the separator to a predetermined length. The winding portion winds the first electrode plate, the second electrode plate, and the separator. In the winding device, the winding portion includes a first body portion, a second body portion spaced apart from the first body portion by a predetermined interval, and an insertion portion, and one end of each of the first electrode plate, the second electrode plate, and the separator A portion is inserted into the insertion portion between the first body portion and the second body portion, and the curved portion is formed on an outer surface of each of the first body portion and the second body portion.
Description
technical field [0001] Aspects of the present invention relate to a winding device for a secondary battery. Background technique [0002] With the rapid development of industries of electronic equipment, communication, etc., the popularity of portable electronic equipment such as camcorders, cellular phones, and notebook PCs has recently increased. Therefore, the amount of usage of the secondary battery has also increased. Secondary batteries can be used not only for portable electronic devices but also for medium-sized and large-sized devices requiring high output and high power, such as electric tools, automobiles, space vehicles, motorcycles, scooters, and air vehicles. A secondary battery with a large capacity and high power is an important factor so that the secondary battery is used as a battery for medium-sized and large-sized devices. [0003] A secondary battery includes an electrode assembly, a case accommodating the electrode assembly therein, an electrolyte inj...
Claims
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IPC IPC(8): H01M10/0587
CPCH01M10/0409H01M10/0587Y02E60/10Y02P70/50H01M10/0431H01M10/052
Inventor 金粲硕
Owner SAMSUNG SDI CO LTD