Analysis of factors affecting the capacity of LI-ION rechargeable batteries at low temperatures

Abstract

This work analyses the factors affecting the capacity of rechargeable chemical electrical power sources. Primarily, it is focused on the classification of these factors and the development of recommendations for increasing the capacity of batteries. We propose an original approach to the Li-ion rechargeable batteries operation, that is mandatory input control and several charge/discharge cycles before placing Li-ion accumulator battery into the operating device. We propose a method for periodic control of Li-ion accumulator batteries in particularly important devices and for the concept of predictive repair. The charge volume loss during operation of a Li-ion rechargeable battery at sub-zero temperatures was assessed quantitatively. The engineered method and the created device can be used when operating a Li-ion accumulator battery at sub-zero temperatures, in the far north, or in the case of increased reliability requirements for devices running on Li-ion rechargeable batteries. Further research will be aimed at the automated monitoring of the state of Li-ion accumulator battery, as well as the possibility of integrating this development into devices using Li-ion accumulator battery in advanced smart systems.

Use of Solar Panels in the Design of Small CubeSat Spacecraft

“…During the flight, the probe will rotate around its axis, and not be in a stationary state like a satellite. It is possible to assume that the solar array generation will be slightly higher than the generation in the case of illumination of one side, since at certain moments of time the spacecraft will turn to the sun with its edge and 2 sides will be illuminated, albeit not at an optimal angle [14,15].…”

“…To reduce detrimental properties of Li-ion batteries as part of microsatellites, it was proposed to use solar panels (SP) in the form of solar arrays (SA) [8]. A part of Li-ion batteries was left as a source of backup power and buffer storage for the electricity generated by the solar array [9,10,11].…”

Designing smart pulse flow meters using diversion analysis

“…They must notify the customer via mobile email when controlled events occur. One of the bottlenecks of smart recorders is their volatility, so they must operate without the need to replace the battery for many years [28]. Therefore, an actual engineering solution is to create such a water consumption monitoring system for daily use, which would be distinguished by low cost, simplicity, and reliability of operation.…”