Winding device used for secondary cell
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: 2015-08-05
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 invention provides a winding device used for a secondary cell. The winding device comprises a supply section, a transmission roller, a cutting section and a winding section. The supply section supplies a first electrode plate, a second electrode plate and a separation plate. The transmission roller transmits the first electrode plate, the second electrode plate and the separation plate. The cutting section cuts the electrode plate, the second electrode plate and the separation plate into predetermined lengths. The winding section winds the electrode plate, the second electrode plate and the separation plate. In the winding device, the winding section comprises a first main body section, a second main body section separated from the first main body section at a predetermined interval and an insertion section. One end part of each of the first electrode plate, the second electrode plate and the separation plate is inserted into the insertion section and between the first main body section and the second main body section. A curved surface section is formed on the outer surface of each of the first main body section and the second main body section.
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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Patent Timeline
Login to View More IPC IPC(8): H01M10/0587
CPCH01M10/0409H01M10/0587Y02E60/10Y02P70/50H01M10/0431H01M10/052
Inventor 金粲硕
Owner SAMSUNG SDI CO LTD