lithium-ion battery

Simulation and estimation of lithium-sulfur battery charge state using fuzzy neural network

The possibility of determining the charge state of lithium-sulfur batteries using the ANFIS model was estimated. Easily measurable in practice physical quantities were used as input parameters of the model. They are the battery voltage, the rate of its change and the number of previous cycles. The analysis of ANFIS models with various parameters (the number and type of membership functions) was carried out. It was shown that ANFIS is a model that makes it possible to estimate the charge state of a lithium-sulfur battery with the accuracy of more than 95%.

The Active Materials Ratio in Electrodes of Lithium-Ion Batteries: Optimisation Problems

Using literature information about the temperature effect on the electrochemical behavior of electrodes based on LiFePO4 and Li4Ti5O12 being positive and negative electrodes of a lithium­ion battery, the discharge characteristics of batteries with such electrodes and various ratios of the amount of active material on the electrodes in the temperature range from −15 to +60°C were calculated.

Vanadium-Doped Bronze Titanium Dioxide as Anode Material for Lithium-ion Batteries with Enchanced Cycleability and Rate Performance

Nanotubes of bronze titanium dioxide (TiO2(B)) doped with vanadium were synthesized through hydrothermal reaction. The obtained material possesses mesoporous structure and large specific surface area of 180 m2/g. It was found that the incorporation of vanadium into TiO2(B) lattice increases the volume of a unit cell. Additionally, the conductivity rose up to three orders of magnitude for doped titanium dioxide reaching the value of 1.70 ⋅ 10 − 8 S/cm.

Manganese-Doped Titanium Dioxide with Improved Electrochemical Performance for Lithium-Ion Batteries

Within the work, an influence of manganese dopant on electrochemical performance of anatase titanium dioxide (Mn/Ti = 0.05; 0.1; 0.2) had been investigated. It was established that incorporation of Mn3+ into the TiO2 lattice results in the formation of Ti1 − xMnxO2 solid solution and increased anatase unit cell volume from 136.41 Å3 (undoped sample) to 137.25 Å3 (Mn/Ti = 0.05). The conductivity of doped TiO2 rises up to two orders in magnitude.

High-voltage Cathode Material Based on LiCoVO₄ for Lithium-Ion Battery: Development and Research

This paper discusses the prospects for developing a cathode material based on the cobalt(II)-lithium vanadate(V) (LiCoVO4) for a lithium-ion battery, an approach to its preparation and features of the electrochemical behavior.

Peculiarities of Obtaining and Electrochemical Properties of Lithium-Ion Battery Cathode Materials Based on Iron(II)-Lithium Orthosilicate

Various strategies for the synthesis of promising electrode materials for lithium-ion battery (LIB) based on iron(II)-lithium orthosilicate (Li2FeSiO4) using widely distributed, environmentally friendly and inexpensive starting materials are considered. The materials obtained are multicomponent electroactive composites that include, in addition to the main lithium accumulating component, also auxiliary structure-forming and electrically conductive components based on the products of the pyrolytic decomposition of organic compounds.

Modeling of Characteristics of Lithium-Sulfur Batteries Based on Experimental Evaluation of Electrochemical Properties of Electrode Materials

To model the characteristics of lithium-sulfur batteries based on the experimental evaluation of the electrochemical properties of electrode materials, the software "Battery Designer", included in the software package “ElChemLab”, was developed. The possibilities of software are described. The specific energy of lithium-sulfur batteries is compared for different surface capacitances of a positive electrode and for different amounts of electrolyte.