Back to results
US 10,381,678 B2Granted
Compressed Li-metal battery
AssigneeIntel Corporation
InventorAndrew W. Keates
Life of this patent
Estimating the term…
Abstract
A new battery cell structure uses a reduced stack pressure force to be used and applied over a much smaller area of the cells by using the sides of the cell instead of the top and bottom of the cell. To reduce the amount of force required to compress a cell, an edge-wise construction can be used instead of the sheet construction. Instead of stack pressure having to be applied to the top and bottom of the cell, it is now applied across the edges. An edge-on design is used to form strips, which allows for flat sides of a battery body.
Claims23
A battery using reduced stack force and edge-wise construction, comprising:
- a first edge plate having substantially a length and substantially a width;
- a second edge plate having substantially the length and substantially the width;
- one or more sets of layers compressed with pressure between the first edge plate and the second edge plate, the sets of layers having substantially the length and substantially the width, a set of layers from the one or more sets of layers comprising:
- a cathode current collector layer;
- a cathode material layer coupled to the cathode current collector layer;
- an anode current collector layer;
- a lithium-metal layer coupled to the anode current collector layer and comprising lithium metal;
- and
- a separator layer disposed between the lithium-metal layer and the cathode material layer and configured to insulate the cathode material layer from the lithium-metal layer;
- and
- a battery body having the length, the width and a depth, wherein:
- an edge area of the battery is defined by the length times the width of the one or more sets of layers within the battery;
- and
- a side area of the battery is defined by the length times the depth of the one or more sets of layers within the battery,
- wherein the side area of the battery body is larger than the edge area of the battery body.
12 more elements
A method of constructing a battery, comprising:
- providing a first edge plate having substantially the length and substantially the width;
- providing a second edge plate having substantially the length and substantially the width;
- disposing one or more sets of layers between the first edge plate and second edge plate, the sets of layers having substantially the length and substantially the width, a set of layers from the one or more sets of layers comprising:
- a cathode current collector layer;
- a cathode material layer coupled to the cathode current collector layer;
- an anode current collector layer;
- a lithium-metal layer coupled to the anode current collector layer and comprising lithium metal;
- and
- a separator layer disposed between the lithium-metal layer and the cathode material layer and configured to insulate the cathode material layer from the lithium-metal layer;
- and
- compressing the layers between the first edge plate and the second edge plate to a force threshold or a pressure threshold,
- wherein a side area comprising the length times a combined depth of the first edge plate, second edge plate and the set of layers is larger than an edge area comprising the length times the width of the one or more sets of layers.
9 more elements
A computing device comprising:
- a processor mounted on a substrate;
- a memory unit capable of storing data;
- a graphics processing unit;
- an antenna within the computing device;
- a display on the computing device;
- a battery within the computing device;
- a power amplifier within the processor;
- and
- a voltage regulator within the processor;
- wherein the battery comprises:
- a battery body having a length, width and depth, wherein the depth is larger than the length and width;
- a first edge plate having substantially the length and substantially the width;
- a second edge plate having substantially the length and substantially the width;
- and
- one or more sets of strips compressed with pressure between the first edge plate and the second edge plate, the sets of strips having substantially the length and substantially the width, a set of strips from the one or more sets of strips comprising:
- a cathode current collector strip;
- a cathode material strip coupled to the cathode current collector strip;
- an anode current collector strip;
- a lithium-metal strip coupled to the anode current collector strip and comprising lithium metal;
- and
- a separator strip disposed between the lithium-metal strip and the cathode material strip and configured to insulate the cathode material strip from the lithium-metal strip,
- wherein a side area comprising the length times a combined depth of the first edge plate, second edge plate and the set of strips is larger than an edge area of the length times the width of the one or more sets of strips, and
- wherein the first edge plate, second edge plate and one or more sets of strips are inserted within the battery body.
20 more elements
Dependencies are inferred from the claim text.