Understanding the capacity enhancement of Fe 3 O 4 /semi exfoliated graphite oxide thru the solvent-EC: DEC reinforcement for lithium ion battery anode

Mixing Super P-Li with N-Doped Mesoporous Templated Carbon Improves the High Rate Performance of a Potential Lithium Ion Battery Anode

“…The plots consist of two semi-circles at high and moderate frequencies, and a sloped line, respectively attributed to the resistance of the SEI layer, to charge transfer resistance, and to Li + diffusion. 33,34 The charge transfer resistance (R ct ) of the hematite-mixed carbon electrode (50.5 ) is lower than those of the hematite-Super P-Li (58.1 ) or the hematite-NDT carbon (107 ) electrodes, indicative of facile electron transfer between the hematite nanorods and the mixed carbon. The capacitance, which scales with the area of the electrode that is accessible to the electrolyte is highest for the electrode made with mixed carbons (87.4 μF) substantially exceeding those made either Super P-Li (59.4 μF) or NDT carbon (46.4 μF).…”

“…The capacitance, which scales with the area of the electrode that is accessible to the electrolyte is highest for the electrode made with mixed carbons (87.4 μF) substantially exceeding those made either Super P-Li (59.4 μF) or NDT carbon (46.4 μF). The diffusion of Li + , represented by the lesser Warburg resistance (W), 34,35 is also improved. Overall, the results are consistent with that expected from the SEM images of the electrodes in Figure 2.…”

Nanocrystalline iron oxide based electroactive materials in lithium ion batteries: the critical role of crystallite size, morphology, and electrode heterostructure on battery relevant electrochemistry

“…The best performance with DEC provided 994 mA h g −1 after 50 cycles. 58 Zhao et al developed a new method to modify the structure of the nanosheet by developing GO nanoscrolls with magnetite embedded on the interior by cold quenching GO sheets in liquid nitrogen. Three different wrapping structures were studied with the best electrochemical result showing a capacity of 1010 mA h g −1 after 50 cycles, similar to the nanosheets.…”

Sulphate Doped Polypyrrole Tin Composite for the Lithium Ion Battery Anode and Its Electrochemical Performance Evaluation

“…The commercialization of anode material is mainly depend on cost, eco-friendly, performance and durability to compete with the conventional graphitic anode (371 mAh g -1 ) 1 . Most of the high capacity anode materials are prone to have disadvantages mainly due to the structural instability during prolong cycle caused by the large volume change occurs while undergoing lithiation and delithiation process [2][3][4][5][6][7] . The pulverization of particle during volume changes leads to the isolation of the active mass.…”