CABLE-TYPE SECONDARY BATTERY
First Claim
1. A cable-type secondary battery comprising:
- an electrode assembly; and
a cover member surrounding the electrode assembly,the electrode assembly including;
first and second electrodes of an elongated shape, each electrode including a current collector having a cross section of a circular, asymmetrical oval or polygonal shape perpendicular to the lengthwise direction thereof, and an electrode active material applied onto the surface of the current collector, anda separator or an electrolyte layer interposed between the first and second electrodes,wherein the cover member has a preset pattern of continuous or discontinuous scratch grooves on the surface thereof.
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Accused Products
Abstract
Provided is a cable-type secondary battery including an electrode assembly and a cover member surrounding the electrode assembly, the electrode assembly including first and second electrodes of an elongated shape and a separator or an electrolyte layer interposed between the first and second electrodes, each electrode including a current collector having a cross section of a circular, asymmetrical oval or polygonal shape perpendicular to the lengthwise direction thereof and an electrode active material applied onto the surface of the current collector, wherein the cover member has a preset pattern of continuous or discontinuous scratch grooves on the surface thereof.
The cable-type secondary battery protects and/or coats the electrode assembly using the improved cover member having the scratch grooves, thereby improving the flexibility of the cable-type secondary battery.
18 Citations
19 Claims
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1. A cable-type secondary battery comprising:
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an electrode assembly; and a cover member surrounding the electrode assembly, the electrode assembly including; first and second electrodes of an elongated shape, each electrode including a current collector having a cross section of a circular, asymmetrical oval or polygonal shape perpendicular to the lengthwise direction thereof, and an electrode active material applied onto the surface of the current collector, and a separator or an electrolyte layer interposed between the first and second electrodes, wherein the cover member has a preset pattern of continuous or discontinuous scratch grooves on the surface thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification