Scientific paper ID 2686 : 2025/4

The rechargeable battery is an important element in the solar system with the help of which it acquires autonomy and becomes an alternative energy source. The rechargeable battery gives energy to power consumers through the dark part of the day, and in the presence of sun, it accumulates a stock of energy for subsequent utilization.

The theme of the report is entirely aimed at modern lithium-iron-phosphate LIFEPO4 rechargeable elements and the ways to assemble them in a rechargeable battery with application in solar systems.

An electric battery is a chemical source of electricity whose main specificity is the reversibility of internal chemical processes. This provides its repeated cyclical use (by charge-discharge) to store energy and autonomous power supply of various electrical devices and equipment, as well as to provide backup sources of energy in transport, medicine, industry, household and other areas.

The report presents the new methods for assembling lithium-iron-phosphate rechargeable batteries and their application in solar systems. The possibilities for assembling them, as well as the possible combinations for obtaining different battery capacity, are discussed in detail with figures. They are presented in the table form the main parameters for the respective battery. The available data can be selected for a battery to build a battery of different capacity and size.