Silicon anode for a rechargeable battery
AssigneeNexeon Limited
InventorMino Green
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Abstract
An electrode and electrode assembly, for example for use as an anode in a lithium-ion rechargeable cell that uses silicon or silicon-based elements of specific dimensions and geometry as its active material, is provided, as well as methods for manufacturing the same. The active silicon or silicon-based material may include fibers, sheets, flakes, tubes or ribbons, for example.
Claims15
An electrode comprising an active material comprising a plurality of silicon or silicon-based elements, each element having a first dimension in the range of 0.08 μm to 0.3 μm and a second dimension oriented generally transverse to the first dimension, the second dimension being at least five times as large as the first dimension,
- wherein the elements form an interconnected array,
- wherein the elements are capable of lithium insertion and removal, and
- wherein the elements are selected from the group consisting of, ribbons and flakes, and
- wherein the elements have a third dimension oriented transverse to each of the first and second dimensions, the third dimension being at least ten times as large as the first dimension.
Dependencies are inferred from the claim text.