Negative electrodes for rechargeable lithium batteries, manufacturing method of the same and rechargeable lithium batteries including the same

摘要

Negative electrodes for rechargeable lithium batteries, rechargeable lithium batteries including the same and a method of manufacturing the negative electrodes. A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface.