Cable-type secondary battery
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United States of America Patent
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May 31, 2016
Grant Date -
Jul 2, 2015
app pub date -
Feb 27, 2015
filing date -
Oct 13, 2011
priority date (Note) -
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Abstract
The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core, and an inner electrode active material layer formed on the surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector.
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