Device and electrode having nanoporous graphite with lithiated sulfur for advanced rechargeable batteries

摘要

Methods, systems and devices are implemented in connection with rechargeable batteries. One such device includes a cathode that has lithiated sulfur. The device also includes a porous structure having pores containing the lithium-sulfide particles introduced during a manufacturing stage thereof.

主权项

1. A device, comprising:
an electrode, including at least one of a cathode or an anode including silicon or germanium nanowires, having a composite that includes a lithiated sulfur-based material, having Li2Sx in the form of lithium-sulfide or lithium-polysulfide, and a porous carbon-based structure having pores between 1 nm and 10 μm in diameter and in which structure the sulfur-based material is located, wherein the lithiated sulfur-based material and the nanowires are configured and arranged with physical properties manifesting in a first charge voltage of the electrode that is substantially higher than all subsequent charge voltages.