Described herein is a system and/or method for manufacturing an electrode assembly for batteries. The system for manufacturing the electrode assembly may comprise a folding device configured to fold a laminated body, such that a plurality of electrodes may...

A method for manufacturing an electrode assembly includes preparing a cell stack and forming a bonding part. In the preparing, a first electrode and a second electrode having a width greater than that of the first electrode are alternately stacked with a s...

A secondary battery includes an electrode assembly including a first electrode tab and a second electrode tab, which are exposed at opposite sides, respectively; a first collector electrically connected to the first electrode tab; a case configured to acco...

There is provide an electrode assembly including an electrode laminate having a plurality of electrode units rolled up to be stacked on one another in at least two rectangularly shaped separation films, the electrode assembly being characterized in that at...

The present invention provides a battery capable of suppressing or avoiding degradation of a positive electrode due to heat applied in thermal welding of separators, and of preventing short circuit through the welded portions. A battery (10) of the present...