Plate-type LiFePO4 nanocrystals by low temperature polyol-assisted solvothermal reaction and its electrochemical properties

Hydrothermal and Solvothermal Process Towards Development of LiMPO4 (M = Fe, Mn) Nanomaterials for Lithium‐Ion Batteries

“…This difference might be due to the effect of the particles having sizes on the nanoscale. Later, the same group reported plate‐type LiFePO 4 particles created by a polyol‐mediated solvothermal method 60, 61. The as‐prepared particles were well‐defined and monodispersed plate‐type LiFePO 4 nanoparticles with an average length, width, and thickness of 250, 200, and 20 nm, respectively.…”

Synthesis and optimization of three-dimensional lamellar LiFePO 4 and nanocarbon composite cathode materials by polyol process

“…In addition, the discharge voltage plateaus of the heat treated LFP composites are more flat than that without annealing. Compared to the previously reported LFP materials synthesized by the polyol method, LFP-CNT-G-4%-600-10 also presents a superior discharge capacity (163 vs 146 mAh g À 1 at 0.1 C) [16,34]. At 1 C, LFP-CNT-G-4%, LFP-CNT-G-4%-500-10, LFP-CNT-G-4%-600-10 and LFP-CNT-G-4%-700-10 demonstrate specific discharge capacities of 72, 111, 127 and 107 mAh g À 1 , respectively, suggesting that the modest heat treatment temperature is beneficial for LFP composites to achieve the best specific capacity at high rate, which is consistent with the previous SEM and XRD analysis, as the modest heat treatment temperature (600 1C) leads to optimized crystal structure and morphologies of LFP composites while heat treatment at further higher temperature (700 1C) causes thickening and agglomeration of the lamellar LFP.…”

“…Many efforts have been made to overcome these disadvantages, for example, carbon coating on the surface, heterogeneous element doping in the bulk, and particle size reducing to the nanoscale, are proved to effectively improve the electronic conductivity and ion diffusion of LFP for high rate capability [8,9]. Considering the morphology of electrode material, porous microstructures help the electrolyte penetrate into the electrode material and shorten the lithium-ion diffusion distance, which could effectively improve the high rate performance of LFP cathodes [10][11][12], and plate-like electrode materials, which could be facilely prepared by the polyol technique, have also attracted attention for the short diffusion path of lithium ions in the vertical directions and good structure stability during cycling [13][14][15][16].…”

Fundamental electrochemical studies on nanoarchitectured olivine phosphates and vanadium pentoxide cathodes for lithium ion batteries

“…Other than improving the conductivity, a protective shell structure can also prevent dissolution of active material species in the electrolyte, thereby increasing the overall reversibility and lifetime of the LIB. [139]. The polyol method proved to be effective initially for LiMnPO 4 (an initial specific capacity of 160 mAh g -1 ), giving the first evidence of promising cathode performance in LiMnPO 4 .…”