Flexible jelly roll type secondary battery
A technology of jelly rolls and electrodes, applied in secondary batteries, secondary battery manufacturing, batteries, etc., can solve problems such as electrode short circuit and battery stability degradation
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[0033] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.
[0034] Embodiments may, however, be embodied in many 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 inventive concept to those skilled in the art. In the drawings, the shapes and sizes of elements may be exaggerated for clarity.
[0035] The reversibly flexible jelly-roll secondary battery according to the embodiment may be provided. Generally, a jelly-roll secondary battery may be formed by stacking a cathode and an anode on each other with a separation film interposed therebetween to be wound to have a jelly-roll form. The cathode and anode may include uncoated portions 11 that are not coated with active material. The battery can be flexible in the uncoated portion 11 so that it is possible t...
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