Novel positive electrode architecture for rechargeable lithium/sulfur batteries

Long-cycle-life Lithium-sulfur Batteries with Lithium Solvate Ionic Liquids

“…1 To improve the charge-discharge capacity and the energy density of these batteries, Li-sulfur (S) and Li-air batteries have been investigated. [2][3][4] Because sulfur forms compounds with Li, and is abundant, inexpensive, and non-toxic, S is suitable as a positive active material for the Li secondary battery. The total reaction between S and Li + is…”

Preparation of lamellar carbon matrix for sulfur as cathode material of lithium-sulfur batteries

“…As products of discharge reactions, Li 2 S 2 and Li 2 S are nonconductive and insoluble in organic liquid electrolyte. They precipitate onto surface of sulfur electrodes and agglomerate [12][13][14]. The third reason is corrosion of lithium electrodes.…”

Investigation of non-woven carbon paper as a current collector for sulfur positive electrode—Understanding of the mechanism and potential applications for Li/S batteries

“…Average porosity, specific surface area and weight are about 80%, 0.05 m 2 g -1 and ~9.5 mg cm -2 respectively. 17,20 This particular carbon paper is much heavier and thicker as compared to a classical Al foil (20 µm, 5.5 mg cm -2 ), thus these parameters, being highly important from a practical application in high energy Li/S cells point of view, will be discussed later. As demonstrated on t he topview SEM images (Fig.…”

“…14,15 Among several alternative and promising solutions towards applicable developments, porous 3D current collectors (mostly carbon-based materials) have already been demonstrated as a concept of choice to replace classical 2D aluminum foil. [16][17][18] In this study, always keeping in mind the simplicity of electrode preparation method, we investigated the impact of using such carbonbased current collector for sulfur electrode coating, in terms of performance and practical use in a commercial battery.…”