Mechanically robust and size-controlled MoS2/graphene hybrid aerogels as high-performance anodes for lithium-ion batteries

Vertically Oriented Graphene Nanosheets for Electrochemical Energy Storage

“…Secondary batteries, particularly lithium‐ion battery (LIB), have been attracting extensive attention in both academic research and commercial applications, due to their high energy density, wide working‐voltage window, and relatively long cycle life [6,70] . Although widely used in portable electronic devices, some critical issues remain with LIB, e. g., low rate performance, poor cyclic stability, and safety problems, [71–73] that limit the development in the commercial market of electrical vehicles [7] .…”

“…Although widely used in portable electronic devices, some critical issues remain with LIB, e. g., low rate performance, poor cyclic stability, and safety problems, [71–73] that limit the development in the commercial market of electrical vehicles [7] . The key to high energy‐density LIB with a long cycle life and good safety is the development of high‐performance electrodes (anodes and cathodes) that can improve the performance of LIB to meet the increasing demand for energy in modern life [6,74,75] …”

“…In fact, remarkable performance has been achieved with graphene‐based supercapacitors and secondary batteries (e. g., lithium‐ion battery, sodium‐ion battery, etc.) [5–7] . Nevertheless, despite substantial progress in recent years, critical issues remain, as aggregation of graphene nanosheets may occur in practical applications and compromise the device performance, due to a reduced accessible surface area and diminished electron‐transfer kinetics.…”

Proton solvent-controllable synthesis of manganese oxalate anode material for lithium-ion batteries

“…4,5 Therefore, it is still a challenge to develop advanced anode materials to replace graphite anode. 4,[6][7][8][9][10] The Tirado group's works show that conversion reactionbased transition metal oxalates are promising anode materials with high reversible specic capacity for the next-generation LIBs. [11][12][13][14][15][16] For example, the capacity of CoC 2 O 4 ($900 mA h g À1 ) is more than twice that of graphite.…”

Single-Crystal α-Fe2O3 with Engineered Exposed (001) Facet for High-Rate, Long-Cycle-Life Lithium-Ion Battery Anode

“…The improved rate capability of electrodes is attributed to the lower energy barrier for surface transmission of Li + across the (001) facet of TiO 2 . Moreover, intensive efforts have also been made to investigate the influence of exposed facets of nanostructures (e.g., Co 3 O 4 , , SnO 2 ) , on the Li-ion storage properties, demonstrating that the exposed facet plays a crucial role in Li-ion transfer and consequently influencing the electrochemical performances of electrodes. , Essentially, the performance of LIB anodes is determined by the thermodynamic and kinetic behavior of Li ions, which is strongly related to the exposed facet of electrodes. , Therefore, rational designs of electrode structure with controllable exposed facets are needed to meet the increasing demand for high-performance LIB anodes.…”