Patent ID: 7740980
Filing Date: 2010-06-22
Classification: H01M,Y02E

Abstract:
1. An electrochemical cell, comprising: a current collector plate including a circumferential outer peripheral wall and an inner wall coupled to said circumferential outer peripheral wall, said circumferential outer peripheral wall defining a cavity and having a height, and said inner wall extending across and physically separating said cavity into at least two regions and having a height that is less than said height of said circumferential outer peripheral wall; and a pellet comprising active powder material disposed in said cavity and circumferentially surrounded by and in contact with said circumferential outer peripheral wall of said current collector plate, said pellet including a first portion and second portion, said first portion disposed in a first region of said at least two regions and said second portion disposed in a second region of said at least two regions, wherein both the first portion and the second portion of the pellet are both either anode material or cathode material.