Surface tiny grain-dependent enhanced rate performance of MoO3 nanobelts with pseudocapacitance contribution for lithium-ion battery anode

One‐pot solution combustion synthesis of crystalline and amorphous molybdenum trioxide as anode for lithium‐ion battery

“…6,7 Among them, molybdenum trioxide (MoO 3 ) has the characteristics of great electrical conductivity, chemical and thermal stability, and abundant resource; therefore, MoO 3 has been studied as an electrode material for LIBs. 8,9 Commonly, MoO 3 has three polymorphs, namely, hexagonal h-MoO 3 , monoclinic β-MoO 3 , and orthorhombic α-MoO 3 . Especially, α-MoO 3 is the most stable polymorph and exhibits a high theoretical-specific capacity of 1117 mAh g −1 ; however, poor structural stability and slow kinetics have hindered its applications.…”

“…Some studies have reported that transition‐metal oxides are promising anodes owing to their advantages such as excellent storage capacity, high operation potential, and safety by preventing the formation of hazardous lithium dendrite 6,7 . Among them, molybdenum trioxide (MoO 3 ) has the characteristics of great electrical conductivity, chemical and thermal stability, and abundant resource; therefore, MoO 3 has been studied as an electrode material for LIBs 8,9 . Commonly, MoO 3 has three polymorphs, namely, hexagonal h‐MoO 3 , monoclinic β‐MoO 3 , and orthorhombic α‐MoO 3 .…”

VS4‐Decorated Carbon Nanotubes for Lithium Storage with Pseudocapacitance Contribution

“…In the last few years, some attempts to achieve this have been reported and have demonstratedt he promising lithium storage performances of high capacity and high rates for such pseudocapacitance-assisted LIBs. [20][21][22][23][24][25][26][27] For example, Yang et al developed ap hosphorized SnO 2 /graphene composite as aL IB anode,w hich delivered high capacity and especially excellent rate capability,w ith approximately 82 % contribution from pseudocapacitance. [22] Vanadium sulfides, with attractive S-V-S layer structure and high electric conductivity,h ave recently been recognized as ideal host materials for Li + storage.…”

“…Reasonably, introducing pseudocapacitance behavior into LIB systems is a promising way to combine the attractive high energy densities of LIBs with the fast rate capability and long cycle life of pseudocapacitive materials. In the last few years, some attempts to achieve this have been reported and have demonstrated the promising lithium storage performances of high capacity and high rates for such pseudocapacitance‐assisted LIBs . For example, Yang et al.…”

Nanocomposite of Mo2N Quantum Dots@MoO3@Nitrogen-Doped Carbon as a High-Performance Anode for Lithium-Ion Batteries

“…To overcome the aforementioned shortcomings, building nanoscale MoO 3 materials, such as ultralong α-MoO 3 nanobelts, tiny grain decorated MoO 3 nanobelts, and porous MoO 3 films, are favorable to easier access to the electrolyte, a shorter ion diffusion pathway, and better accommodation of volume changes. − In addition, many efforts have also been made to the control of the sizes and morphologies of MoO 3 for fabricating MoO 3 hybrids with non-carbon-based materials (e.g., TiO 2 , − WO 2 , Fe 2 O 3 , MoO 2 , and MoS 2 ) and carbon-based materials (e.g., graphene, − amorphous carbon, , and multiwalled carbon nanotubes), which are better strategies for improving the electrochemical properties by accelerating Li + diffusion, improving electronic conductivity, and accommodating the volume changes. , Despite the progress that has been made, the easy and mass-productive synthesis of MoO 3 -based anodes with high rate performances and long-term stabilities up to 500 cycles is rare and still remains a challenge for researchers.…”