SnO2 and TiO2-supported-SnO2 lithium battery anodes with improved electrochemical performance

Electrospun SnO2–ZnO nanofibers with improved electrochemical performance as anode materials for lithium-ion batteries

“…Furthermore, it has been considered that the lowdimensional nanostructures, such as wires, fibers and tubes, exhibit better buffering effects of volume change [19,23,24]. Another effective approach is to introduce different inorganic nanoparticles to create hybrid nanocomposites to enhance the battery performance, like ZnO [31], In 2 O 3 [32], Fe 2 O 3 [33], TiO 2 [34], etc. It was reported that the heterostructures between ZnO and SnO 2 provides an enhanced inner electric field at the interface of nanoparticles, moreover, the inactive ZnO can act as a buffering matrix for SnO 2 to relief the strain and stress during electrochemical process, which will effectively enhance the performance [31].…”

One-step synthesis of SnOx nanocrystalline aggregates encapsulated by amorphous TiO2 as an anode in Li-ion battery

“…Modern Li-ion batteries hold more than twice as much energy by weight as the rst commercial versions sold by Sony in 1991, and the pursuit of higher energy density with longer cycle life has never stopped. [9][10][11][12] Several strategies have been employed to overcome this issue, such as controlling particle size, coupling with another component (e.g., carbon) and designing a unique structure. 7,8 However, the pulverization and deterioration of active materials easily result in capacity fading and poor cycle life owing to large volume expansion/shrink during the alloying/dealloying reactions of LiSn x , further limiting the application of SnO x -based materials in LIBs.…”

Anchoring ultra-fine TiO2–SnO2solid solution particles onto graphene by one-pot ball-milling for long-life lithium-ion batteries

“…Numerous hybrid structures, such as Ti x Sn 1Àx O 3 solid solution, 15 (Sn-Ti)O 2 nanocomposites, 16 Ti 2/3 Sn 1/3 O 2 , 17 Ti(IV)/Sn(II) co-doped SnO 2 nanosheets, 18 tin titanate nanotubes, 19 mesoporous Sn-doped TiO 2 thin lms, 20 coaxial SnO 2 @TiO 2 nanotube hybrids 21 and TiO 2 -supported-SnO 2 22 were investigated for application in LIBs in recent years. Numerous hybrid structures, such as Ti x Sn 1Àx O 3 solid solution, 15 (Sn-Ti)O 2 nanocomposites, 16 Ti 2/3 Sn 1/3 O 2 , 17 Ti(IV)/Sn(II) co-doped SnO 2 nanosheets, 18 tin titanate nanotubes, 19 mesoporous Sn-doped TiO 2 thin lms, 20 coaxial SnO 2 @TiO 2 nanotube hybrids 21 and TiO 2 -supported-SnO 2 22 were investigated for application in LIBs in recent years.…”