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US 2018/0006332 A1Published application
Systems, methods and devices for creating a li-metal edge-wise cell
AssigneeIntel Corporation
InventorAndrew W. KEATES
Life of this patent
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Abstract
A new battery cell structure uses a battery cell structure comprising a plurality of strips so that only a fraction of the power in the cell can be fed to a dendrite which has shorted an anode and cathode. The dendrite still occurs, but can be rendered benign. In addition, a fuse can be added to the cell structure so that shorted cells can be removed from the circuit.
Claims29
A battery using reduced stack force, comprising:
- a battery body having a length, a width and a depth, wherein:
- an edge of the battery is defined by the length and the width of one or more sets of layers within the battery;
- and
- a side of the battery is defined by the length and depth of the one or more sets of layers within the battery,
- wherein an edge area of the battery body is larger than a side area of the battery body;
- a plurality of layers having substantially the length and substantially the width, a set of layers from the plurality of layers comprising:
- a cathode current collector layer;
- a cathode material layer coupled to the cathode current collector layer;
- an anode current collector layer, the anode current collector layer comprising a neck formation forming a fuse;
- 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.
9 more elements
A method of constructing a battery, comprising:
- disposing two or more layer sets, comprising:
- providing a first anode current collector layer;
- disposing a first anode material layer adjacent to a first side of the first anode current collector layer;
- disposing a second anode material layer adjacent to a second side of the first anode current collector layer;
- disposing a first separator adjacent to the first anode material layer, a first end of the first separator layer extending beyond a first end of the first anode current collector layer, first anode material layer and second anode material layer;
- disposing a second separator adjacent to the second anode material layer, a first end of the second separator layer extending beyond the first end of the first anode current collector layer, first anode material layer and second anode material layer, and a second end of the second separator extending beyond a second end of the first separator;
- disposing a first cathode material layer adjacent to the second separator;
- disposing a first cathode current collector layer adjacent to the first anode material layer;
- and
- disposing a first cathode material layer adjacent to the first cathode current collector layer;
- folding the first anode current collector layer and the second end of the second separator over the first cathode material layer and second cathode material layer, with the second end of the second separator covering the first cathode material layer and second cathode material layer and insulating the first anode current collector from the first cathode current collector, the first cathode material layer and the second cathode material layer.
8 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, a width and a depth, wherein:
- an edge of the battery is defined by the length and the width of one or more sets of layers within the battery;
- and
- a side of the battery is defined by the length and depth of the one or more sets of layers within the battery,
- wherein an edge area of the battery body is larger than a side area of the battery body;
- a plurality 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, the anode current collector layer comprising a neck formation forming a fuse;
- 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.
19 more elements
Dependencies are inferred from the claim text.