Review on different charging techniques of a lithium polymer battery

Abstract

This paper presents a review on the charging techniques of the batteries, particularly the lithium polymer 'LiFePO4'. The lithium polymer entrusts some characteristics, which select it over the other types of batteries in usage. Basically, there exists one charging technique that is commonly used in the industries nowadays and it is known by constantcurrent constant-voltage technique (CC-CV). Nevertheless, thistechnique might unveil some drawbacks to the battery as a whole such as overvoltage, which can lead to shortened lifetime of the battery. This is why a battery management system has been developed to protect each cell of the battery. Moreover, it would be interesting to see if there are any other techniques, which might either replace or enhance the conventional technique. This paper will be assisted with equations and graphs illuminating and verifying our work.

Energy Storage Systems Technologies, Evolution and Applications

“…As a result of its light weight and good energy density, cellphones, smartphones, tablets, laptops, all gadgets are powered with the Li-ion battery. The Li-ion battery consists of a positive electrode-anode, a negative electrode-cathode, separator, electrolyte, and two current collectors [8].…”

Selected Technologies of Electrochemical Energy Storage—A Review

“…On the other hand, in the case of discharge: they are characterized by a minimum voltage of 3.0 V, a discharging current of up to 1 C (in some cases 2 C) and a temperature range guaranteeing the correct operation from −20 • C to +60 • C (with appropriately reduced voltage levels and capacitances at low temperatures) [55].…”

“…Typically, they also have a capacity of 80% after 500 cycles of charging and discharging at a current of 0.5 C [55]. The energy density of lithium-polymer batteries reaches values up to about 200 Wh/kg, and their capacity varies depending on the design and the desired performance, from a few mAh to over 10 Ah [56].…”