LITHIUM ALL-SOLID-STATE BATTERY

摘要

An all-solid-state lithium battery, thermo-electromechanical activation of Li2S in sulfide based solid state electrolyte with transition metal sulfides, and electromechanical evolution of a bulk-type all-solid-state iron sulfur cathode, are disclosed. An example all-solid-state lithium battery includes a cathode having a transition metal sulfide mixed with elemental sulfur to increase electrical conductivity. In one example method of in-situ electomechanical synthesis of Pyrite (FeS2) from Sulfide (FeS) and elemental sulfur (S) precursors for operation of a solid-state lithium battery, FeS+S composite electrodes are cycled at moderately elevated temperatures.

主权项

1. An all-solid-state lithium secondary battery, comprising:
a cathode having a transition metal sulfide, wherein: upon full discharge, the cathode undergoes conversion reactions to form a transition metal+lithium sulfide; and upon full charge, the cathode undergoes conversion reactions to form the transition metal sulfide+lithium+electrons.