High energy density cylindrical battery cell design with stacked electrodes

A cylindrical battery cell, comprising:

• a cylindrical external case including an interior surface with a first round shape;
• an electrode stack disposed within the external case and including:
• a first electrode stack and a second electrode stack;
• a plurality of anodes, each including one of a plurality of first conductive tabs;
• a plurality of cathodes, each including one of a plurality of second conductive tabs, wherein the plurality of anodes and the plurality of cathodes are arranged in an alternating pattern;
• and
• a plurality of separators, wherein one of the plurality of separators is disposed between each of the plurality of anodes and each of the plurality of cathodes;
• and
• a positive terminal;
• a negative terminal;
• a first electrical connection attached to each of the plurality of first conductive tabs and to the negative terminal;
• a second electrical connection attached to each of the plurality of second conductive tabs and to the positive terminal;
• a first support plate disposed next to an end of the first electrode stack;
• a second support plate disposed against an end of the second electrode stack;
• and
• at least one compression spring configured for:
• providing a compressive force upon the first and second support plates and the first and second electrode stacks;
• and
• displacing when the first and/or second electrode stacks volumetrically expands;
• and
• wherein the plurality of anodes, the plurality of cathodes, and the plurality of separators each include a common component perimeter including:
• a first portion of the common component perimeter including a second round shape to match the interior surface;
• and
• a second portion of the common component perimeter including a flat side configured to recede from the first round shape of the interior surface;
• wherein the second portion of the common component perimeter of each of the plurality of anodes, the second portion of the common component perimeter of each of the plurality of cathodes, and the second portion of the common component perimeter of each of the plurality of separators are aligned and create a region between the electrode stack and the interior surface;
• and
• wherein the plurality of first conductive tabs, the plurality of second conductive tabs, the first electrical connection, and the second electrical connection are disposed within the region between the electrode stack and the interior surface.