Catalysis of silica-based anode (de-)lithiation: compositional design within a hollow structure for accelerated conversion reaction kinetics

Abstract

New hierarchical hollow SiO2 spheres decorated with metal nanoparticles were designed by using an in situ self-assembly approach for lithium-ion battery applications.

A study on Ti-doped Fe3O4 anode for Li ion battery using machine learning, electrochemical and distribution function of relaxation times (DFRTs) analyses

“…Rechargeable lithium-ion batteries (LIBs) have attracted continuous attention due to their outstanding properties including high energy efficiency, lack of memory effect, long cycle life, high energy and high power density 1 – 3 . It has been considered as the primary power source for portable electronic devices, hybrid electric vehicles (HEV) and plug-in hybrid electric vehicles (PHEV) 4 , 5 . Graphite has been widely used as the anode material in LIBs because of its layered structure, which allows lithium to be inserted/extracted during the charging and discharging processes, that gives a theoretical specific capacity of 372 mAh g −1 .…”

“…Graphite has been widely used as the anode material in LIBs because of its layered structure, which allows lithium to be inserted/extracted during the charging and discharging processes, that gives a theoretical specific capacity of 372 mAh g −1 . However, a relatively low reversible capacity and poor cycle stability at a higher rate limit its use in HEV and PHEV 5 , where applications need to meet high energy and high power density.…”

Large-Sized Nickel–Cobalt–Manganese Composite Oxide Agglomerate Anode Material for Long-Life-Span Lithium-Ion Batteries

“…Due to their long cycle life, high energy density, and environmental friendliness, lithium-ion batteries are widely used in 3C electronic products, new energy vehicles, and energy storage power stations. − However, the current widely used commercial graphite anode only has a low capacity of 372 mAh g –1 , which has become a bottleneck, restricting the increase in energy density. , Therefore, it is particularly critical to find a new anode material with a higher capacity and long cycle stability. Metal oxides, , metal sulfides, silicon, tin, antimony, and other anode materials , have become current research hotspots because of their higher specific capacity and are committed to becoming a substitute for commercial graphite anodes. In particular, transition-metal-oxide-based anode materials (e.g., NiO, MnO, CoO, and MoO 2 , etc.)…”

Zinc blende inspired rational design of a β-SiC based resilient anode material for lithium-ion batteries

“…4,5 In this regard, a wide range of materials such as Sn, CuSn, SnO 2 , Si, SiO x and a spectrum of transition metal oxides have attracted considerable attention as a potential alternative to graphite. [6][7][8][9][10][11][12][13][14][15][16] However, the high theoretical capacities of many of these anode materials (Si $ 3759 mA h g À1 and Sn $ 990 mA h g À1 ) are accompanied with an aggressive volume change (for Si 300-400% and for Sn 358%) during operation. 9,17,18 This offensive volume variation challenges the structural stability/integrity of electrode materials and instigates electrical disconnection from the current collector.…”

“…18 Indeed, these issues have been partially addressed by size reduction (nanostructuring), surface modication by carbon/metal coating or adopting various synthesis methodologies to design porous/yolkshell/core-shell/nanotubes/nanopillars. [12][13][14][15]17,18 However, in commercial applications complexity and compatibility issues associated with these methods have delayed the immediate integration of Si based anode materials in commercial LIB systems.…”