Patent ID: 6929881

Claim:
An electrochemical cell, comprising: a) a casing; b) an electrode assembly housed inside the casing, the electrode assembly comprising a first electrode, a second electrode and an intermediate separator wound together and having a first longitudinal axis, wherein the first electrode is of a first electrode active material and is connected to the casing serving as its terminal, and wherein the second electrode includes a second current collector comprising a peripheral edge surrounding a major portion contacted with a second electrode active material and a minor portion; c) a terminal pin insulated from the casing and having a first end disposed inside the casing and a second, outer end for connection to a load; d) a coupler having a length extending along a second longitudinal axis between a distal portion contacted to the minor portion of the second current collector and a proximal portion extending beyond the peripheral edge of the second current collector and contacted to the first end of the terminal pin, wherein the second longitudinal axis of the coupler is parallel to the first longitudinal axis of the wound electrode assembly; and e) an electrolyte provided in the casing to active the electrode assembly.