Self‐Stacked, Small‐Sized MoS₂ Nanosheets for High‐Performance Lithium‐Ion Batteries

Abstract

A liquid exfoliation route has allowed the environmentally friendly, scalable, and cost‐effective production of high‐quality 2D MoS2 nanosheets. However, high capacity achieved by the liquid‐exfoliated pristine MoS2 is rarely reported in lithium‐ion batteries. For the first time, it is demonstrated that liquid‐exfoliated small‐sized MoS2 nanosheets exhibit a high reversible capacity of 1133 mA h g−1 after 130 cycles and an excellent rate capability; these values are comparable to the high performances achieved by the available chemical routes.

Defect Control in the Synthesis of 2 D MoS2 Nanosheets: Polysulfide Trapping in Composite Sulfur Cathodes for Li–S Batteries

“…[29] These can be generalized into three strategies using MoS 2 :p rotection by augmenting the separator,t he Li-metala node, and PS trapping by inclusion in ac omposite cathode. Specific examples have included use of MoS 2 as as eparator coating, [30][31][32][33][34][35] as ap rotective layer on the anode, [36,37] and inclusion in ac omposite cathode. This composite cathode is generally fabricated using ac arbonbased support, such as ag raphene nanosheet, [23] carbon cloth, [38] reduced graphene oxide, [39][40][41][42] or an itrogen-doped support such as carbon nanotubes (CNTs), [35] mesoporous carbon spheres, [38] reduced graphene oxide, [43] or porous carbon.…”