In recent years, the number of DC power system in substation has been increasing. And technical transformation system, fault maintenance and other workload is also on rise, therefore dc emergency emerged. The lead-acid battery usually adopted for traditional supply. disadvantage volume quality makes it difficult to realize portability mobility power. Lithium iron phosphate technology frontier r...

In this paper, the performances of various lithium-ion chemistries for use in plug-in hybrid electric vehicles have been investigated and compared to several other rechargeable energy storage systems technologies such as lead-acid, nickel-metal hydride and electrical-double layer capacitors. The analysis has shown the beneficial properties of lithium-ion in the terms of energy density, power de...

Recent research has focused on making suitable anode materials for lithium-ion batteries and using nanotechnology to refine composite electrode with high reversible capacity strong stability. However, much work remains be done develop these into commercially viable solutions. The must have capacity, a long lifetime, the ability accept release lithium ions repeatedly. Nano-engineered based silic...

In this work, carbon submicron fiber composites loaded with a cobalt-ferric alloy and binary metal compounds were prepared by electrospinning high temperature annealing using acetone ferric as precursors polyacrylonitrile source. The phase transformation mechanism of the fiber-supported Co-Fe bimetallic compound during was investigated. electrochemical properties oxide self-supported electrode ...