SILICON-BASED ENERGY STORAGE DEVICES WITH WITH METAL SULFIDE CONTAINING ELECTROLYTE ADDITIVES

Electrolytes and electrolyte additives for energy storage devices comprising metal sulfide compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from a metal sulfide compound.