One-step hydrothermal reduction synthesis of tiny Sn/SnO2 nanoparticles sandwiching between spherical graphene with excellent lithium storage cycling performances

Plasma‐Enabled Ternary SnO2@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

“…(1) reversible, which is possible under the close contact between Na 2 O and Sn and the presence of excessive Sn, thereby increasing the CE and reversible capacity. This idea has been demonstrated for both Li 2 O in lithium‐ion batteries (LIBs) and Na 2 O in SIBs …”

“…Na 2 O formed by the conversion reaction can prevent agglomeration and accommodate the associated volume expansion. [13][14][15][16][17][18][19] However, the formation of Na 2 O consumes Na + ions in the electrolyte thus leading to the large irreversible capacity loss and low initial coulombic efficiency (CE) [Eqs. (1) and (2)].…”

“…This idea has been demonstrated for both Li 2 O in lithium-ion batteries (LIBs) and Na 2 O in SIBs. [18,21] Here, we design a customized SnO 2 @Sn core-shell structure, which might have several advantages: 1) Na 2 O converted from the SnO 2 shell can prevent the aggregation of the inner Sn core, thus stabilizing the structure; 2) a thin SnO 2 shell leads to thinner Na 2 O layer and solid electrolyte interface (SEI), thus reducing the irreversible energy loss; 3) close contact between Na 2 O and Sn and the presence of excessive Sn (impure Na 2 O) drives the conversion reaction Eq. (1) partially reversible, thereby increasing the CE and reversible capacity.…”

Confining Nano-GeS2 in Cross-Linked Porous Carbon Networks for High-Performance and Flexible Li-Ion Battery Anodes

“…Rechargeable LiBs have been applied as energy storage candidates, considering their nonmemory effect, high open circuit voltage, and long cycle life span. − The commercial graphite anodes have a limited theoretical capacity (372 mA h g –1 ), which makes them inadequate for satisfying the booming demands of national economy and high technology. , Ge-based materials have been regarded as the promising anode materials because of their high capacity (i.e., Li4.4Ge, 1600 mA h g –1 ) over graphite. , Up to now, binary germanium chalcogenides with high theoretical volumetric capacities have been adopted as anode materials of LiBs. For instance, Cho et al reported that nano-GeS 2 particles prepared by a laser irradiation method exhibited a capacity of ∼600 mA h g –1 at 160 mA g –1 after 100 cycles .…”

Preparation and photoelectric properties of SnOx films with tunable optical bandgap

“…It has the same elements as SnO but in different proportions. Furthermore, it exhibited many excellent properties and is widely used in the fields of catalysis 15 , gas sensor 16 , energy storage 17 , solar cell 18 and so on.…”