The natural abundance of potassium in the earth's crust is 1000 times higher than that of
lithium, so energy technologies built on potassium are more sustainable. Potassium-ion …

An electron spin echo in a nitroxide-containing polymer cathode film for organic radical
batteries is observed for various states of charge at cryogenic temperatures. The EPR …

The paper describes Li-ion battery models and the possibility to identify its parameters. The
battery model is considered as an equivalent RC circuit, which can with good accuracy …

The main objective of this article is determination of the charging and discharging efficiency
of the Li-ion battery depending on the value of the charging and discharging current. An …

The paper deals with a thermal model of a battery pack made of a phase-change material.
The model is based on the finite element method and is created in the ANSYS software. The …

This paper deals with a measurement of alkaline and Li-ion battery impedances in wide-
range frequency from about one Hz to a few hundred kHz. Measured battery admittances …