Mesoporous composite cathode materials prepared from inverse micelle structures for high performance lithium ion batteries

FeF3 Nanoparticles Embedded in Activated Carbon Foam (ACF) as a Cathode Material with Enhanced Electrochemical Performance for Lithium Ion Batteries

“…It is worth noting that during the fourth cycle, due to a slow activation process, FeF 3 /ACF achieves a reversible capacity as high as ~221 mAhg −1 . This value is close to the theoretical capacity of 237 mAhg −1 . In the prolonged cycling experiments, the bulk FeF 3 shows a low specific capacity of ~45 mAhg −1 at the 50th cycle, which corresponds to a fading rate of 1.1% per cycle (Figure (b)).…”

Electrochemical performances of Li4Mn5O12 films prepared by spray-coated sol-gel reaction

“…All these materials were tested as composite positive electrode made of the active material, carbon as electrical conductor and a binder. For Li 4 Mn 5 O 12 material, the highest initial discharge capacity at low cycling rate (0.1-0.3 C) is 150-160 mAh g −1 with a capacity fade of minimum 5% after 50 cycles [15] [34,[40][41][42] combine the advantages of the two phases, such as the excellent cyclic stability and high coulombic efficiency of the spinel phase (Li 4 Mn 5 O 12 ), as well as the high discharge capacity and the outstanding structural stability of the layered phase (Li 2 MnO 3 ) [43]. However, the increase of discharge capacity above 200 mAh g −1 is at the expense of the capacity of the discharge plateau at 2.8 V vs. Li/Li + [34,41].…”

“…For Li 4 Mn 5 O 12 material, the highest initial discharge capacity at low cycling rate (0.1-0.3 C) is 150-160 mAh g −1 with a capacity fade of minimum 5% after 50 cycles [15] [34,[40][41][42] combine the advantages of the two phases, such as the excellent cyclic stability and high coulombic efficiency of the spinel phase (Li 4 Mn 5 O 12 ), as well as the high discharge capacity and the outstanding structural stability of the layered phase (Li 2 MnO 3 ) [43]. However, the increase of discharge capacity above 200 mAh g −1 is at the expense of the capacity of the discharge plateau at 2.8 V vs. Li/Li + [34,41]. Thus, our material P3_500 shows respectable results compared to the literature, showing initial discharge capacity similar to the best ones observed for pure Li 4 Mn 5 O 12 [16,35] but lower capacity retention and capacity plateau than the best materials found in the literature [15,16].…”

Multi-Phase Li-Mn-O Nanocomposite Synthesized by Oxidation Reaction for Lithium Ion Batteries

“…20 A mesoporous Li 2 MnO 3 /Li 4 Mn 5 O 12 composite prepared using modified inverse micelle method showed electrochemical profile and capacities typical for layered and spinel components, but with a capacity retention of only around 77% after 25 cycles. 21 Although the electrochemical curves reported in Refs. [19], [20] and [21] show similar profiles to our result, their cyclability profiles exhibited a dramatic drop during extended cycling compared to our results.…”