Seaweed-Liked WS(2)/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries

WS(2) 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 WS(2) has been impeded by the intrinsic properties of WS(2), including poor electrical conductivity and large volume expansion. Herein, a seaweed-liked WS(2)/reduced graphene oxide (rGO) composites has been fabricated through a procedure involving the self-assembling of WO(4)(2−), hexadecyl trimethyl ammonium ion with graphene oxide (GO) and the subsequent thermal treatment. The WS(2)/rGO nanocomposite exhibited the outstanding electrochemical property with a stable and remarkable capacity (507.7 mAh·g(−1)) at 1.0 A·g(−1) 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.