Hierarchical nano-branched c-Si/SnO2 nanowires for high areal capacity and stable lithium-ion battery

Growth mechanism of SnC2H4O2 nanowires prepared by the polyol process as SnO2 precursor nanowires

“…SnO 2 -based nanomaterials have been widely applied as n-type semiconductor gas sensors for sensing reductive gases (E g ¼ 3.64 eV at 300 K), [1][2][3][4][5][6][7] transparent conducting oxides in optoelectronic devices, thin lm solar energy cells, and anode materials in high-capacity lithium-ion batteries. [8][9][10][11][12][13][14][15][16] In particular, high-performance, exible, and stretchable nanomaterialbased devices can be realized by using SnO 2 nanowires. [17][18][19] Therefore, the easy and large-scale synthesis of SnO 2 nanowires remains an attractive eld of research.…”

Advances in Lithium-Containing Anodes of Aprotic Li-O2Batteries: Challenges and Strategies for Improvements

“…anodes must be analyzed. Possible strategies include the following: i) rational nanostructured strategies to ease the huge volume change of alloy‐type M anode and increase the mass loading and overall volumetric capacity; ii) coating a micro–nanoscale artificial protective film on the nanostructured M anode before lithiation, such as, Al 2 O 3 , SiO 2 , and TiO 2 to help form a stable SEI film on the lithiated M anode surface and simultaneously block contaminants (O 2 , H 2 O) from attacking the lithium‐containing anode; iii) building an ultrathin membrane as an insert layer to avoid the adverse effect of O 2 (or H 2 O) while facilitating pass‐through of Li + , thus improving the cycling lifespan of Li–O 2 batteries. A careful analysis between the enhanced cycle stability caused by the nanostructured M hosts and the irreversible capacity loss caused by O 2 and the nanostructured Li x M anodes is required to achieve optimum performance.…”

SnO2 as Advanced Anode of Alkali‐Ion Batteries: Inhibiting Sn Coarsening by Crafting Robust Physical Barriers, Void Boundaries, and Heterophase Interfaces for Superior Electrochemical Reaction Reversibility

“…Additionally, the abundance of voids in these structures can effectively promote electrolyte infiltration, enhancing Li + transmission, and buffer the lithium insertion–extraction‐resulted volume expansion–shrinkage of SnO 2 particles, retaining the structural stability of the electrodes . Moreover, the generated nanosized SnO 2 subunits shorten the diffusion distances of Li + /e − leading to enhanced lithiation–delithiation reaction kinetics and, as a result, higher reaction reversibility …”