Metal sulfide electrodes and energy storage devices thereof

摘要

The present invention generally relates to energy storage devices, and to metal sulfide energy storage devices in particular. Some aspects of the invention relate to energy storage devices comprising at least one flowable electrode, wherein the flowable electrode comprises an electroactive metal sulfide material suspended and/or dissolved in a carrier fluid. In some embodiments, the flowable electrode further comprises a plurality of electronically conductive particles suspended and/or dissolved in the carrier fluid, wherein the electronically conductive particles form a percolating conductive network. An energy storage device comprising a flowable electrode comprising a metal sulfide electroactive material and a percolating conductive network may advantageously exhibit, upon reversible cycling, higher energy densities and specific capacities than conventional energy storage devices.

主权项

1. An electrode, comprising:
a sulfur or metal sulfide active material suspended or dissolved in a fluid; and a percolating conductive network comprising electronically conductive particles suspended in the fluid, wherein the electronically conductive particles are electronically connected, and wherein electronic charge carriers can be transported throughout the percolating conductive network via the electronically conductive particles.