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US 7,402,829 B2Granted
Structured silicon anode
AssigneeNexeon Limited
InventorMino Green
Life of this patent
Estimating the term…
Abstract
A silicon/lithium battery can be fabricated from a silicon substrate. This allows the battery to be produced as an integrated unit on a chip. The battery includes a silicon anode formed from sub-micron diameter pillars of silicon fabricated on an n-type silicon wafer. The battery also includes a cathode including lithium.
Claims15
An energy storage device comprising:
- an anode comprising an array of sub-micron silicon structures supported on a silicon substrate;
- and
- a cathode comprising lithium, arranged to form a battery.
A battery including a silicon anode comprising:
- an array of sub-micron silicon pillars fabricated on a silicon substrate;
- and a lithium cathode, wherein a compound film is formed on the silicon pillars in a charging step.
An electrode for a battery comprising sub-micron silicon pillars supported on a silicon substrate and arranged to form a battery with a lithium cathode and a lithium-based electrolyte.
Dependencies are inferred from the claim text.