Patent ID: 8883353

Claim:
A rolled electrode for a rechargeable battery comprising: an electrode substantially in the form of a plate and having a frame with a grid provided in the frame and a contact lug provided on the frame for connection of the electrode to a battery pole, wherein one of the frame or the contact lug has a portion having a greater thickness than the grid provided in the frame, and wherein the rolled electrode is formed by rolling through profiled rollers such electrode material which emerges from the rollers comprises electrodes having the portion having a greater thickness than the grid structure; wherein the frame of the rolled electrode includes an upper frame section, a lower frame section and a pair of opposing side frame sections, wherein the upper frame section is provided substantially parallel to the lower frame section, and wherein the upper and lower frame sections are spaced apart and connected by the pair of opposing side frame sections; the contact lug is integrally formed on the upper frame section; and only the upper and lower frame sections of the frame have a greater thickness than the grid.