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US 2006/0216603 A1Published application
Lithium-ion rechargeable battery based on nanostructures
AssigneeEnable IPC
InventorSung Choi
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Abstract
A nanowire-based Li-ion rechargeable battery having superior performance with little capacity fade for use in applications including consumer electronics and medical devices is made by incorporating nanowire construction of the cathode. The nanowire-based battery system includes a nanostructured high surface area cathode structure fabricated by electrodeposition using alumina nanopore templates.
Claims13
A structure comprising:
- a cathode comprised of nanowires suitable for use in a lithium ion battery;
- said nanowires comprised of an electrodeposited lithium oxide;
- and
- said cathode comprised of 1010 to 1012 nanowires per square centimeter.
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A method of making a nanowire structure comprising the steps of:
- selecting a cathode material suitable for forming a lithium ion battery;
- depositing an aluminum layer on a silicon substrate;
- anodizing said aluminum layer to alumina forming a nanopore template comprised of a plurality of nanopores;
- widening said nanopores by chemical etching;
- and
- growing nanowires comprised of said cathode material inside said nanopores.
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Dependencies are inferred from the claim text.