Patent ID: 9209481
Filing Date: 2015-12-08
Classification: H01M,Y02E,Y02P

Abstract:
1. A rechargeable lithium battery comprising an electrode assembly comprising: a first electrode comprising a first current collector coated on a first portion with a first active material to form a first active region and coated on a second portion with a polymer to form a first polymer region, wherein ends of the first active region and the first polymer region contact each other; a second electrode comprising a second current collector coated on a first portion with a second active material to form a second active region and coated on a second portion with the polymer to form a second polymer region, wherein ends of the second active region and the second polymer region contact each other; and a separator between the first electrode and the second electrode, wherein the electrode assembly is wound a plurality of times with the first and second polymer regions forming a core central to the electrode assembly, wherein the separator is spaced from the core.