Rechargeable lithium battery
AssigneeSamsung SDI Co., Ltd.
InventorJea-Woan Lee
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Abstract
A rechargeable lithium battery including an electrode assembly having a positive electrode including a positive current collector partially coated with a positive active material to form a positive coated region and a positive uncoated region, a negative electrode including a negative current collector partially coated with a negative active material to form a negative coated region and a negative uncoated region and a separator between the positive electrode and the negative electrode. The electrode assembly is spirally wound a plurality of times with the positive uncoated region and the negative uncoated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times.
Claims13
A rechargeable lithium battery comprising an electrode assembly comprising:
- a positive electrode comprising a positive current collector partially coated with a positive active material to form a positive coated region and a positive uncoated region;
- a negative electrode comprising a negative current collector partially coated with a negative active material to form a negative coated region and a negative uncoated region;
- and
- a separator between the positive electrode and the negative electrode, wherein the electrode assembly is spirally wound a plurality of times with the positive uncoated region and the negative uncoated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times.
A rechargeable lithium battery comprising an electrode assembly comprising:
- a positive electrode comprising a positive current collector coated on a first portion with a positive active material to form a positive active coated region and coated on a second portion with a polymer to form a positive polymer coated region;
- a negative electrode comprising a negative current collector coated on a first portion with a negative active material to form a negative active coated region and coated on a second portion with a polymer to form a negative polymer coated region;
- and
- a separator between the positive electrode and the negative electrode, wherein the electrode assembly is spirally wound a plurality of times with the positive polymer coated region and the negative polymer coated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times.
Dependencies are inferred from the claim text.