SnS2 anode for rechargeable lithium battery

SnS2 nanoparticle loaded graphene nanocomposites for superior energy storage

“…Enormous volume expansion and contraction during the continuous alloying/dealloying reactions and the absence of graphene buffer layers may damage the structural integrity of pure SnS 2 -based anodes, leading to loss of electrical contact, and resulting in poor capacity retention. [9][10][11]13,14,38 We also believe that the build-up of insulating Li 2 S may also contribute to the capacity decay (see Fig S7 and the detailed analysis there, and also see the CV curve of synthesized SnS 2 in Fig. S8a, ESIw).…”

“…Such a redox peak couple was frequently observed in a similar potential range in the following cycles, indicating that Li ions subsequently reacted with Sn metal to form Li x Sn alloy as well as the reverse reaction. 11,13,14,38,39 Sn + xLi…”

Two‐Dimensional SnS2 Nanoplates with Extraordinary High Discharge Capacity for Lithium Ion Batteries

“…The enhanced electrochemical properties associated with SnS 2 nanoplates can be attributed to their 2D layered characteristics, including finite lateral size and enhanced open-edges, which can facilitate Li ion diffusion through the active materials and decrease the overvoltage for associated with the Li-Sn alloying reaction, thus driving a faster electrode reaction and providing a higher charge/discharge capacity and excellent cycling stability. [14] In summary, we have presented a facile synthesis of 2D layered SnS 2 nanoplates which have nanoscale lateral size of 150 nm. Their unique nanoscale characteristics, including finite lateral 2D morphology, make electrodes fabricated from SnS 2 nanoplates have remarkably high discharge capacities that are close to the theoretically limiting values.…”

“…3a). [14] A nanomaterial-based working electrode was fabricated by mixing SnS 2 nanoplates with Super P carbon black and polyvinylidene fluoride binder. Cycling tests were carried out on the resulting electrode by using coin-type half cells (2016 type) with a Li counter electrode.…”

Microstructural Characteristics and the Charge-Discharge Characteristics of Sn-Cu Thin Film Materials

“…Sn-based intermetallic compounds and their oxides 9,10) possess higher capacity, and numerous relevant reports have investigated Sn-Cu, [1][2][3][4] Sn-Mo, 11) Sn-P, 12) Sn-Ni, [13][14][15] Sn-Ca, 16) Sn-Sb, 17) Sn-S, 18) Li-Sn, 5) Ce-Sn, 7) and Sn-O. 9,10) Notably, most of the above Sn-based anode materials were prepared by mechanical alloying (ball milling), 4,13,19,20) sintering, 4,14) and chemical reduction 8,11,17,21,22) which tend to cause inhomogeneity and microsegregation.…”