The LiFePO4 (LFP) positrode and C/TiO2 negatrode assembled hybrid LFP║C/TiO2@800 supercapacitor exhibited a high specific capacitance of 227 F/g (current density of 1 A/g), power density of 500...

Sep 8, 2015 · Recent research has demonstrated that the phase diagram for LFP depends not only on its thermodynamic properties but also on its kinetic properties. In 2008, Chang et al. 13 performed the first...

shows X-ray (XRD) patterns of three LFP samples synthesized with different concentrations of the precursor (0.1, 0.2 and 0.4 mmol) and donated as LFP-1, LFP-2 and LFP-3.

Mar 1, 2023 · X-ray diffraction spectroscopy (XRD, D8 Advance, Bruker) was used to characterize the crystal structures of the pristine LFP, degraded LFP, and regenerated LFP.

The performance of LiFePO4 (LFP)/graphite batteries would decline during floating-charge and cycling aging. The main aging factors are same for these two application modes.

In this paper, SDT will be used to identify the composition of carbon coating on LFP from the weight change, determine the phase transition temperature, and the enthalpy of reaction during phase transitions from the heat flow data. X-ray difraction (XRD) will be done to further investigate LFP oxidation and crystalline structure.

Jun 25, 2023 · With the increasing use of LiFePO 4 (LFP) batteries, recycling spent LFP cathode materials in a green, efficient and economical way becomes essential. This study proposes a hydrothermal method directly regenerating spent LFP using low-cost Na2 SO 3 as a reductant, with Li2 SO 4 solution as the lithium source.

Jan 6, 2023 · To develop efficient, viable, and promising routes to regenerate nano-LiFePO 4 (nano-LFP) composite materials from spent LFP batteries, this paper studied phosphate approaches by taking Li 3 PO 4 and FePO 4 as raw materials.

Sep 27, 2013 · The XRD pattern of LFP exhibited more narrow diffraction peaks and higher intensities when the concentration of the precursor was increased from 0.1 to 0.4 mmol.

Mar 14, 2014 · In-situ powder X-ray diffraction (XRD) is a powerful technique to study crystalline phase changes during electrochemical cycling of battery materials. However, current cell designs are bulky, expensive, and often contain beryllium.