Conversion reaction of TiFe hydride as anode material for all-solid-state Lithium-ion batteries

Abstract

Electrochemical energy storage is considered a remarkable way of bridging the gap between demand and supply due to intermittent renewable energy production. Recently developed metal hydride (M-H)-based negative electrodes have been proven the potential candidate for lithium-ion batteries including the merits of high theoretical capacity, relatively small volume expansion, and suitable working potential with very low polarization. In the present work, Titanium iron (TiFe)- hydride is implemented as an anode material in an all-solid-state lithium-ion battery. Lithium borohydride is taken as a solid electrolyte and Li foil is placed as a counter electrode. The electrochemical properties are investigated using galvanostatic charge/discharge profiling whereas the mechanism of lithiation delithiation is investigated in detail through X-ray Diffraction (XRD).