Electrode unit and storage battery using the same
An electrode unit, secondary battery technology, applied in secondary batteries, secondary battery manufacturing, non-aqueous electrolyte storage batteries, etc., can solve problems such as unsolved offset winding
Active Publication Date: 2004-07-28
SAMSUNG SDI CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0009] As mentioned above, in the traditional spiral electrode unit, although the exposed areas (i.e., uncoated parts) of the positive and negative electrodes are mentioned, it still does not solve the problem of offset winding.
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[0026] Detailed description of the preferred embodiment
[0027] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the drawings, like reference numerals referring to like elements throughout. The embodiments are described below in order to explain the invention by referring to the figures.
[0028] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0029] figure 1 An exemplary rechargeable secondary battery according to an embodiment of the present invention is shown.
[0030] refer to figure 1 The secondary battery 10 includes a case 11 having a closed space, an electrode unit 20 inserted into the closed space of the case 11 , and a cover plate 13 a sealing the space into which the electrode unit 20 has been inserted.
[0031] Such as figure 1 As shown, the housing 11 is generally substantially rectangular, which can be used as a terminal. In...
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Abstract
An electrode unit of a secondary battery prevents deviated winding of electrode plates of the electrode unit and prevents the position of an electrode tab from shifting during winding and a secondary battery having the electrode unit. The secondary battery includes an electrode unit having a first electrode plate having a first electrode uncoated portion on at least one side of a first electrode collector coated with at least a first electrode active material, a second electrode plate having a second electrode uncoated portion on at least one side of a second electrode collector coated with at least a second electrode active material, a separator interposed between the first electrode plate and the second electrode plate, and a case accommodating the electrode unit to be sealed and having a terminal portion electrically connected to the electrode unit.
Description
[0001] Cross-references to related applications [0002] This application claims the benefit of Korean Patent Application No. 2002-85903 filed in the Korean Intellectual Property Office on December 28, 2002, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a secondary battery, in particular to an electrode unit in which a positive electrode plate, a negative electrode plate, and a separator inserted between the two electrodes are coiled, and the present invention also relates to an electrode unit using the electrode unit secondary battery. Background technique [0004] With the rapid development of light-weight and wireless electronic devices such as mobile phones, camcorders, and notebook computers, lithium-ion batteries for supplying electric power with high power density to the electronic devices are under active development. Secondary batteries can be manufactured by packing circular or non-circ...
Claims
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IPC IPC(8): H01M10/04H01M10/05H01M10/0587H01M10/34H01M50/534H01M50/536H01M50/538
CPCH01M10/0587H01M10/0431H01M2/263H01M4/13H01M10/052H01M4/02H01M4/133Y02E60/122Y02E60/10Y02P70/50H01M50/538H01M50/534H01M50/536H01M50/409H01M50/543H01M50/531
Inventor 姜晙远韩秀振金昌燮郭润泰金柱衡孟寿莲宋民镐
Owner SAMSUNG SDI CO LTD