Microwave synthesis of SnS2 nanoflakes anchored graphene foam for flexible lithium-ion battery anodes with long cycling life

Abstract

SnS2 nanoflakes anchored three dimensional graphene foam (SnS2@GF) as flexible lithium ion battery anodes were fabricated via a single mode microwave hydrothermal technique. The flexible SnS2@GF electrode shows high capacity, high rate capability and long cycling life for lithium ion battery. The SnS2@GF electrode exhibits a high reversible specific capacity 1386.7mAh/g at 0.1A/g and a long cycling life with a high capacity of 818.4mAh/g after 500 cycles at 1A/g. The excellent performance of flexible SnS2@GF electrode is attributed to the reduced strain during intercalation/extraction process, shortened ion transport distance, higher conductivity and more electrode/electrolyte contact area.