Few-Layered MoS2/Acetylene Black Composite as an Efficient Anode Material for Lithium-Ion Batteries

Badam, Rajashekar; Joshi, Prerna; Vedarajan, Raman; Natarajan, Rajalakshmi; Matsumi, Noriyoshi

doi:10.1186/s11671-017-2322-3

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…These CB sheets facilitated the electrical conductivity of the ReS 2 and served as a buffering agent against mechanical stress induced by the large volume variation of the ReS 2 during cycling [19]. The ReS 2 on the CB could also enhance the active surface area utilization compare with the pure ReS 2 powder showing its aggregation tendency, which is advantageous for accommodating a large amount of Li + ions into the host structure of the ReS 2 [20].…”

Section: Resultsmentioning

confidence: 99%

Ultra-Thin ReS2 Nanosheets Grown on Carbon Black for Advanced Lithium-Ion Battery Anodes

et al. 2019

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ReS2 nanosheets are grown on the surface of carbon black (CB) via an efficient hydrothermal method. We confirmed the ultra-thin ReS2 nanosheets with ≈1–4 layers on the surface of the CB (ReS2@CB) by using analytical techniques of field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM). The ReS2@CB nanocomposite showed high specific capacities of 760, 667, 600, 525, and 473 mAh/g at the current densities of 0.1 (0.23 C), 0.2 (0.46 C), 0.3 (0.7 C), 0.5 (1.15 C) and 1.0 A/g (2.3 C), respectively, in conjunction with its excellent cycling performance (432 mAh/g at 2.3 C; 91.4% capacity retention) after 100 cycles. Such LIB performance is greatly higher than pure CB and ReS2 powder samples. These results could be due to the following reasons: (1) the low-cost CB serves as a supporter enabling the formation of ≈1–4 layered nanosheets of ReS2, thus avoiding its agglomeration; (2) the CB enhances the electrical conductivity of the ReS2@CB nanocomposite; (3) the ultra-thin (1–4 layers) ReS2 nanosheets with imperfect structure can function as increasing the number of active sites for reaction of Li+ ions with electrolytes. The outstanding performance and unique structural characteristics of the ReS2@CB anodes make them promising candidates for the ever-increasing development of advanced LIBs.

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Section: Resultsmentioning

confidence: 99%