Patent ID: 8785053

Claim:
A lithium ion battery comprising: a cathode electrode comprising a cathode current collector and a cathode material layer located on the cathode current collector; and an anode electrode comprising an anode current collector and an anode material layer located on the anode current collector; wherein at least one of the cathode current collector and the anode current collector comprises: a support comprising two surfaces; at least one carbon nanotube layer located on one of the two surfaces of the support, the at least one carbon nanotube layer comprising a plurality of uniformly distributed carbon nanotubes; and a conducting tab being in direct contact with the at least one carbon nanotube layer; wherein the support is an electrically insulating support, the conducting tab is strip-shaped, and the plurality of uniformly distributed carbon nanotubes is parallel to the two surfaces of the support and substantially aligned along a same direction perpendicular to a lengthwise direction of the conducting tab.