Abstract This study presents the development of an improved state charge (SOC) estimation technique for lithium–sulphur (Li–S) batteries. is a promising technology with advantages in comparison existing lithium-ion (Li-ion) batteries such as lower production cost and higher energy density. In this study, state-of-the-art Li–S prototype cell subjected to experimental tests, which are carried out...

Due to the rapidly increasing energy demand and more serious environmental pollution problems, lithium-ion battery is widely used as high-efficiency clean energy. State of Charge (SOC) representing physical quantity remaining most critical factor ensure stability safety battery. The novelty SOC estimation model, which two recurrent neural networks with gated units combined Coulomb counting meth...

Cylindrical 18650 and 21700 lithium-ion batteries are produced with small gaps between the jelly roll case. The size of these mechanical attachment to case can have a significant impact on thermal properties cells. To investigate influence state charge (SOC) health (SOH) gap, computed tomography (CT) gray-value analysis was conducted various cell types at 0% 100% SOC after cycling. results show...

This paper presents a method for use in estimating the state of charge (SOC) lithium-ion batteries which is based on an electrochemical impedance equivalent circuit model with controlled source. Considering that open-circuit voltage battery varies SOC, source proposed and current interact each other. On this basis, radial basis function (RBF) neural network adopted to estimate uncertainty onlin...

The lithium-ion battery industry has been developing rapidly, with energy density and capacity constantly improving. However, the ensuing safety accidents of power batteries have seriously threatened personal passengers. Therefore, more attention paid to thermal research batteries, such as runaway (TR) mechanism analysis prevention methods, etc. In this paper, nickel-rich 18650 Li[Ni0.8Co0.1Mn0...

in the present work, the structural and electronic properties, and conductivity of (5,5) and (6,6) single walled carbon nanotubes in the ground state have done by using the hartree-fock and density functional theory dft-b3lyp/6-31g* level. delocalization of charge density between the bonding or lone pair and antibonding orbitals calculated by nbo (natural bond orbital) analysis. these methods a...

The battery management system (BMS) of a hybrid-electric-vehicle (HEV) battery pack comprises hardware and software to monitor pack status and optimize performance. One of its important functions is to execute algorithms that continuously estimate battery state-of-charge (SOC), state-of-health (SOH), and available power. The accuracy of these algorithms is critical for the proper sizing of the ...

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...