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US 9,966,631 B1Granted
Generation of wrinkle-free silicon monoxide electrodes using separate preformation and formation
AssigneeKitty Hawk Corporation
InventorsChen Li, Patrick K. Herring
Life of this patent
Estimating the term…
Abstract
A solid electrolyte interface is formed on a silicon monoxide electrode in a battery cell. After the solid electrolyte interface is formed on the silicon monoxide electrode, the battery cell is charged for one or more initial cycles while the battery cell is compressed.
Claims6
A method, comprising:
- forming a solid electrolyte interface on a silicon monoxide electrode in a battery cell;
- and
- after the solid electrolyte interface is formed on the silicon monoxide electrode, charging the battery cell for one or more cycles while the battery cell is compressed, including by:
- applying a first charging current to the battery cell while the battery cell is compressed, wherein the first charging current is applied over a first amount of time and up to a first voltage;
- in response to the battery cell reaching the first voltage, discharging the battery cell while the battery cell is compressed;
- after the first charging current has been applied and the battery cell has been discharged, applying a second charging current to the battery cell while the battery cell is compressed, wherein:
- the second charging current is applied over a second amount of time and up to a second voltage, the first amount of time is greater than the second amount of time, and the first voltage is less than or equal to the second voltage;
- and
- in response to the battery cell reaching the second voltage, discharging the battery cell while the battery cell is compressed.
6 more elements
A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
- forming a solid electrolyte interface on a silicon monoxide electrode in a battery cell;
- and
- after the solid electrolyte interface is formed on the silicon monoxide electrode, charging the battery cell for one or more cycles while the battery cell is compressed, including by:
- applying a first charging current to the battery cell while the battery cell is compressed, wherein the first charging current is applied over a first amount of time and up to a first voltage;
- in response to the battery cell reaching the first voltage, discharging the battery cell while the battery cell is compressed;
- after the first charging current has been applied and the battery cell has been discharged, applying a second charging current to the battery cell while the battery cell is compressed, wherein:
- the second charging current is applied over a second amount of time and up to a second voltage, the first amount of time is greater than the second amount of time, and the first voltage is less than or equal to the second voltage;
- and
- in response to the battery cell reaching the second voltage, discharging the battery cell while the battery cell is compressed.
6 more elements
Dependencies are inferred from the claim text.