Battery anode with alternating active layers
AssigneeGM Global Technology Operations LLC
InventorsMeng Jiang, Xiaosong Huang, Bradley R. Frieberg, Louis G. Hector, JR.
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Abstract
An anode for a rechargeable battery cell includes an electrode substrate and a current collector fixed to the electrode substrate. The anode also includes an active layer arranged on the current collector and having discrete first material sections and second material sections arranged in an alternating pattern. Each discrete material section is aligned perpendicular to the current collector. The active layer is configured to intercalate transient ions during charging of the battery cell and de-intercalate the transient ions during discharging of the battery cell. A method of manufacturing such an anode for a rechargeable battery cell is also considered.
Claims20
An anode for a rechargeable battery cell, comprising:
- an electrode substrate;
- a current collector fixed to the electrode substrate;
- and
- an active layer arranged on the current collector and having discrete first material sections and second material sections arranged in an alternating pattern;
- wherein:
- each material section is aligned perpendicular to the current collector;
- and
- the active layer is configured to intercalate transient ions during charging of the battery cell and de-intercalate the transient ions during discharging of the battery cell.
A method of manufacturing an anode for a rechargeable battery cell, the method comprising:
- providing a current collector;
- and
- depositing onto the current collector an active layer having discrete first and second material sections, including arranging in an alternating pattern and aligning perpendicular to the current collector the first and second material sections to generate the anode.
An anode for a rechargeable battery cell, comprising:
- an electrode substrate;
- and
- a current collector fixed to the electrode substrate;
- and
- an active layer defined by a length, a width, and a height arranged on the current collector and having discrete graphite sections and silicon-containing sections arranged in an alternating pattern;
- wherein:
- each of the graphite and silicon-containing sections is aligned perpendicular to the current collector;
- multiple graphite material sections and multiple silicon-containing material sections fit across at least one of the length and the width of the active layer;
- and
- the active layer is configured to intercalate lithium ions during charging of the battery cell and de-intercalate the lithium ions during discharging of the battery cell.
Dependencies are inferred from the claim text.