The fuel cells are distinguished as generating of green allocable energy and are electrochemical devices of low environmental impact. Porous nanocrystalline strontium-doped lanthanum manganite La0.8Sr0.2MnO3 (LSM) cathode materials were prepared by mechanochemical route in various grinding times. Carbon black was employed to produce pores. The formation of LSM single phase was studied by X-ray ...

Amorphous iron phosphates are potential cathode materials for sodium ion batteries. The amorphous FePO4 matrix is able to insert/extract sodium ions reversibly without apparent structural degradation, resulting in stable performance during the charge/discharge process. However, the extremely low electronic conductivity of FePO4 itself becomes a formidable obstacle for its application as a high-...

This paper reports experimental results obtained from an 8]8 pixellated CZT detector provided by Imarad Imaging Systems. Three arbitrarily selected pixels were independently tested using c rays of di!erent energies. The signals from an anode pixel and the cathode were read out simultaneously. From the observations of the pulse waveforms from both the anode pixel and the cathode, the electron-in...

Sodium ion batteries (SIBs) are promising candidates for the applications of large-scale energy storage due to their cost-effective and environmental-friendly characteristics. Nevertheless, it remains a practical challenge to find a cathode material of SIBs showing ideal performance (capacity, reversibility, etc.). We report here a nanocomposite material of amorphous, porous FePO(4) nanoparticl...

Introduction Recently, much attention has been focused on the creation of new energy systems, such as highperformance rechargeable batteries, as a solution to the global energy and environmental crises. Redox active molecular materials are good candidates for a highperformance cathode active material. To achieve both high capacity and fast charging/discharging, we have previously proposed the u...

Operation of the nonaqueous Li-O2 battery critically relies on the reversible oxygen reduction/evolution reactions in the porous cathode. Carbon and polymeric binder, widely used for the construction of Li-O2 cathode, have recently been shown to decompose in the O2 environment and thus cannot sustain the desired battery reactions. Identifying stable cathode materials is thus a major current cha...

limn2o4 spinel cathode materials have been successfully synthesized by solid-state reaction. surface of these particles were modified by nanostructured lifepo4 via sol gel dip coating method. synthesized products were characterized by thermally analyzed by thermogravimetric and differential thermal analysis(tg/dta), x-ray diffraction (xrd), scanning electron microscopy (sem), and energy dispers...

LiMnPO4 with a morphology controlled by carbonate anions was prepared via a simple template-free hydrothermal reaction; the LiMnPO4 shows a promising electrochemical activity as cathode material for lithium ion batteries.

A well-crystallized single-phase quinary layer transition metal oxide of NaNi1/4Co1/4Fe1/4Mn1/8Ti1/8O2 was successfully synthesized. It exhibited excellent cycle performance and high rate capability as a cathode material for sodium-ion batteries.