Controlling the Intercalation Chemistry to Design High-Performance Dual-Salt Hybrid Rechargeable Batteries

Citations Over TimeTop 10% of 2014 papers

Abstract

We have conducted extensive theoretical and experimental investigations to unravel the origin of the electrochemical properties of hybrid Mg(2+)/Li(+) rechargeable batteries at the atomistic and macroscopic levels. By revealing the thermodynamics of Mg(2+) and Li(+) co-insertion into the Mo6S8 cathode host using density functional theory calculations, we show that there is a threshold Li(+) activity for the pristine Mo6S8 cathode to prefer lithiation instead of magnesiation. By precisely controlling the insertion chemistry using a dual-salt electrolyte, we have enabled ultrafast discharge of our battery by achieving 93.6% capacity retention at 20 C and 87.5% at 30 C, respectively, at room temperature.

Related Papers

• → Intercalation Compounds of Transition-Metal Dichalcogenides(1994)8 cited
• → Preparation and Characteristics of Highly Expandable Graphite Intercalation Compounds by Two-Step Chemical Intercalation(2016)1 cited
• → Novel approaches for controlling stage structure of metal chloride–graphite intercalation compounds(2002)4 cited
• Effect of Structures of Intercalating Agent and Montmorillonite on Intercalation Modification of Montmorillonite(2011)
• Study on the intercalation of γ-PGA in montmorillonite(2011)