Graphene/Co₉S₈ nanocomposite paper as a binder-free and free-standing anode for lithium-ion batteries

Abstract

A flexible and robust graphene–Co9S8 nanocomposite paper anode for high performance lithium-ion batteries.

The application of nanostructured transition metal sulfides as anodes for lithium ion batteries

“…Wang et al . [56] reported a simple high energy ball-milling technique together with vacuum filtration to fabricate a highly flexible, conductive and free-standing rGO/Co 9 S 8 nanocomposite paper which could be directly used as a freestanding anode for flexible LIBs ( Fig. 6 ).…”

Co9S8 nanoparticles encapsulated in nitrogen-doped mesoporous carbon networks with improved lithium storage properties

“…[23][24][25] Therefore, nanostructured electrodes generally lead to improved energy density, better capacity retention, and superior rate capability. [28][29][30][31][32] For example, Huang et al 32 synthesized cobalt sulfides/graphene composites through a facile one-pot solvothermal method. 26 Hollow nanospheres of mesoporous Co 9 S 8 were successfully synthesized by a facile solvothermal reaction followed with a high-temperature annealing.…”

Hydrothermal Synthesis of Cobalt Ruthenium Sulfides as Promising Pseudocapacitor Electrode Materials

“…The characteristic diffraction peaks of Figure In the Raman spectra shown in Figure 4, pristine RuS2 showed characteristic peaks around 377 and 385 cm −1 which can be assigned to Eg and Ag modes, respectively [28]. Pristine Co9S8 showed characteristic peaks at approximately 662, 500, 475, and 188 cm -1 which correspond to the stretching S-S mode and the Eg mode of Co in cobalt sulfides [56]. Similarly, in cobalt ruthenium sulfides (Co2RuS6-24, 36, and 48), the characteristic peaks at 665, 505, 475, and 188 cm −1 are attributed to the stretching S-S mode and Eg mode of Co in cobalt ruthenium sulfides [57,58], and peaks at 375 (Eg) and 385 (Ag) cm −1 correspond to the stretching S-S mode of Ru in cobalt ruthenium sulfide bonds [28].…”