Seaweed-Liked WS₂/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries

WS₂ is considered as a potential anode material for lithium ion batteries (LIBs) with superior theoretical capacity and stable structure with two-dimensional which facilitates to the transportation and storage of lithium ion. Nevertheless, the commercial recognition of WS₂ has been impeded by the intrinsic properties of WS₂, including poor electrical conductivity and large volume expansion. Herein, a seaweed-liked WS₂/reduced graphene oxide (rGO) composites has been fabricated through a procedure involving the self-assembling of WO₄ , hexadecyl trimethyl ammonium ion with graphene oxide (GO) and the subsequent thermal treatment. The WS₂/rGO nanocomposite exhibited the outstanding electrochemical property with a stable and remarkable capacity (507.7 mAh·g ) at 1.0 A·g even after 1000 cycles. This advanced electrochemical property is due to its seaweed-liked feature which can bring in plentiful active sites, ameliorate the stresses arisen from volume variations and increase charge transfer rate.