ELECTRODE ASSEMBLY INCLUDING BI-CELL AND FULL-CELL AND SECONDARY BATTERY INCLUDING THE SAME
First Claim
1. A stacked/folded type electrode assembly configured to have a structure in which a plurality of unit cells, each of which comprises a positive electrode having an electrode mixture comprising an electrode active material applied to a current collector, a negative electrode having an electrode mixture comprising an electrode active material applied to a current collector, and a separator disposed between the positive electrode and the negative electrode, is wound in a state of being arranged on a sheet type separation film, whereinthe unit cells comprise one full cell and three or more bi-cells,outermost unit cells of the electrode assembly are each configured such that an electrode forming an outside of the electrode assembly is configured as a single -sided electrode, in which no electrode mixture is applied to a surface of the current collector facing the outside of the electrode assembly, andthe single-sided electrodes are electrodes having the same polarity.
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Accused Products
Abstract
Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which a plurality of unit cells, each of which includes a positive electrode having an electrode mixture including an electrode active material applied to a current collector, a negative electrode having an electrode mixture including an electrode active material applied to a current collector, and a separator disposed between the positive electrode and the negative electrode, is wound in the state of being arranged on a sheet type separation film, wherein the unit cells include one full cell and three or more bi-cells, the outermost unit cells of the electrode assembly are each configured such that an electrode forming the outside of the electrode assembly is configured as a single-sided electrode, in which no electrode mixture is applied to the surface of the current collector facing the outside of the electrode assembly, and the single-sided electrodes are electrodes having the same polarity.
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Citations
17 Claims
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1. A stacked/folded type electrode assembly configured to have a structure in which a plurality of unit cells, each of which comprises a positive electrode having an electrode mixture comprising an electrode active material applied to a current collector, a negative electrode having an electrode mixture comprising an electrode active material applied to a current collector, and a separator disposed between the positive electrode and the negative electrode, is wound in a state of being arranged on a sheet type separation film, wherein
the unit cells comprise one full cell and three or more bi-cells, outermost unit cells of the electrode assembly are each configured such that an electrode forming an outside of the electrode assembly is configured as a single -sided electrode, in which no electrode mixture is applied to a surface of the current collector facing the outside of the electrode assembly, and the single-sided electrodes are electrodes having the same polarity.
Specification