US Patent 7745046 Secondary battery

A secondary battery includes: an electrode assembly including positive and negative electrodes; a container adapted to receive the electrode assembly; a cap assembly having at least two terminals exposed outside the container, the cap assembly being adapted to be fixed to the container to seal the container; and lead elements adapted to electrically connect the terminals and the electrode assembly. A center of the terminals are aligned with a center of the electrode assembly, and the lead elements are spaced apart from the center of their respective terminals and adapted to be connected to their respective terminals and the electrode assembly.