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US 12,278,359 B2Granted
Electrode assembly comprising anode sheet and anode having improved stacking characteristics of electrode, and method of manufacturing the same
AssigneeLG Energy Solution, Ltd.
InventorsTai Joon Seo, Dong Hee Sul, Dong Hun Song, Woo Yong Lee
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Abstract
An electrode assembly is manufactured by a process. The electrode assembly comprises an anode sheet and an anode having improved stacking characteristics of an electrode based on a shoulder portion. The shoulder portion is solid. The shoulder portion is thicker than a conventional electrode tab and has no light reflection with the application of an active material when the electrode assembly is formed, including during notching, cutting of a single electrode, and stacking.
Claims4
An electrode assembly, comprising:
- a cathode in which a cathode tab protrudes from one outer end and a cathode mixture layer comprising a cathode active material is applied on a lower portion of the cathode tab and on a cathode current collector;
- an anode in which an anode tab protrudes from one outer end and an anode mixture layer comprising an anode active material is applied on a lower portion of the anode tab and on an anode current collector;
- and
- a separator interposed between the cathode and the anode,
- wherein the anode is formed with the anode tab comprising an active material-coated portion and a non-coated portion, and a shoulder portion comprising the active material-coated portion at a predetermined interval,
- wherein the shoulder portion is formed at a position facing the cathode tab when stacked with the cathode, and
- wherein the shoulder portion has a protruding length extending perpendicularly away from an end of a rectangular portion of the anode, and the cathode active material extends on the cathode tab beyond the end of the rectangular portion of the anode and at least partially overlies the shoulder portion.
4 more elements
Dependencies are inferred from the claim text.