Carbon electrode structures for batteries
AssigneeEnevate Corporation
InventorsBenjamin Yong Park, Alexander Gorkovenko, Rabih Bachir Zaouk, William Hubert Schank
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Abstract
In certain embodiments, an electrode includes a body of material formed in substantial part of carbon, the body having an exterior surface and an interior located within the exterior surface, and a plurality cavities located in the interior of the body. Each of the cavities is in communication with the exterior of the body and has an interior surface. The cavities can each be sized to accommodate a battery separator located therein and substantially covering the interior surface of the cavity.
Claims24
A method of forming an electrode for a battery, the method comprising:
- providing a stack of sheets, wherein
- each sheet comprises a first precursor,
- the first precursor comprises silicon,
- the stack of sheets includes an attachment substance between neighboring sheets of the stack of sheets;
- and
- the attachment substance comprises a second precursor;
- pulling apart neighboring sheets of the stack of sheets in areas not attached by the attachment substance such that a plurality of pores is formed between the neighboring sheets;
- and
- pyrolysing the stack of sheets to convert the first precursor and the second precursor into carbon.
A method of forming a battery cell, the method comprising:
- forming a first electrode of the battery cell, wherein the forming comprises:
- providing a stack of sheets, wherein
- each sheet comprises a first precursor mixture,
- the first precursor mixture comprises a first precursor and silicon,
- the stack of sheets includes an attachment substance between neighboring sheets of the stack of sheets, and
- the attachment substance comprises a second precursor;
- pulling pull apart neighboring sheets of the stack of sheets in areas not attached by the attachment substance such that a plurality of pores is formed between the neighboring sheets;
- and
- pyrolysing the stack of sheets to convert the first precursor and the second precursor into carbon;
- and
- after forming the first electrode,
- coating a pore of the plurality of pores with a separator;
- and
- inserting a second electrode of the battery cell into the pore such that the separator isolates the first electrode from the second electrode.
Dependencies are inferred from the claim text.