Three-dimensional porous flower-like S-doped Fe2O3 for superior lithium storage

MXene framework‐supported F, S, and Co ternary‐doped tin dioxide hybrid structures for ultrafast and stable lithium‐ion batteries

“…It is clear that only the MXene-FCTOS sample exhibits two peaks at approximately 163.2 and 161.3 eV, which imply the S 2p 1/2 bonding and S 2p 3/2 bonding. 28 For comparing the intensity of all chemical bonds, wide-range XPS data from 100 to 900 eV were also shown in Figure 3S. Thus, successful S doping into the FCTO structure was confirmed using the dopant-evaporation method.…”

“…Figure 5D shows the S 2p XPS spectra for all the samples. It is clear that only the MXene‐FCTOS sample exhibits two peaks at approximately 163.2 and 161.3 eV, which imply the S 2p 1/2 bonding and S 2p 3/2 bonding 28 . For comparing the intensity of all chemical bonds, wide‐range XPS data from 100 to 900 eV were also shown in Figure 3S.…”

Co3O4 nanoparticle-dotted hierarchical-assembled carbon nanosheet framework catalysts with the formation/decomposition mechanisms of Li2O2 for smart lithium–oxygen batteries

“…Energy shortage and environmental problems have led to a positive search in energy consumption and conservation. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Among multitudinous types of storage and conversion technologies, rechargeable Li-O 2 batteries [21][22][23][24] (LOBs) are regarded as the potential candidates for energy storage owing to their ultra-high theoretical energy density reaching 3600 W h Kg −1 , originating from the process of oxygen being reduced to form lithium peroxide (2Li + O 2 ↔ Li 2 O 2 , 2.96 V vs. Li/Li + ), which is nearly ten times higher than commercialized lithium-ion batteries. [25][26][27] However, in comparison with an ideal reaction process, complex reaction mechanisms and possible by-products exist resulting in challenges [28][29][30] including inferior specific capacity, low round trip energy efficiency, poor cycle performance, which hinder its further development.…”

A hybrid composite of H2V3O8 and graphene for aqueous lithium-ion batteries with enhanced electrochemical performance

“…10 There is no doubt that cost, safety, and environmental feature are crucial factors in the large-scale storage system. 11,12 Compared to risky and expensive LIBs with organic electrolytes, aqueous rechargeable lithium-ion batteries (ARLBs) batteries with inorganic electrolytes have their advantages in the large-scale energy storage system since it was reported by Dahn in the mid-1990s. 13 Once the ARLBs were invented, they have quickly attracted much attention from researchers in many elds due to environmental friendliness, low cost, excellent safety and good ionic conductivity of the aqueous inorganic electrolyte when charging and discharging at high current density.…”

“…10 There is no doubt that cost, safety, and environmental feature are crucial factors in the large-scale storage system. 11,12…”