Li Ion Polymer Battery Charging

Find out how to prolong battery life by using correct charge methods.

Li ion polymer battery charging.

In the first stage of charging a li ion battery or cell the charge current is controlled. Knowing these simple tips for properly charging your lithium ion batteries will take a long way. You will be able to prolong the usage of these battery type. Lithium ion battery charging basics these remarks apply equally to lithium ion and lithium polymer batteries.

Let us say there is a lithium battery that uses only half of its charge in one day and is then charged fully. Consider that li ion is the wider class of battery chemistries while li po lithium polymer is a subset of li ion batteries where the electrodes are made with a polymer film and not of metal. The original charger will be of no use. Some consumers may have that the charge and discharge life of lithium ion polymer batteries is 500 times but what is 500 times it refers to the number of charge and discharge cycles of the battery.

High conductivity semisolid polymers form this electrolyte these batteries provide higher specific energy than other lithium battery types and are. There are various arguments in favour and disfavour of li ion and lipo types of batteries. A prototype li ion battery was developed by akira yoshino in 1985 based on earlier research by john goodenough m. Lithium battery expands when charging.

Charging and discharging batteries is a chemical reaction but li ion is claimed to be the exception. 4 tips on how to charge your lithium ion battery properly. Stanley whittingham rachid. A lithium polymer battery or more correctly lithium ion polymer battery abbreviated as lipo lip li poly lithium poly and others is a rechargeable battery of lithium ion technology using a polymer electrolyte instead of a liquid electrolyte.

Typically this will be between 0 5 and 1 0 c. However overcharging will cause electrolyte decomposition increase internal pressure and finally lithium batteries expansion. The chemistry is basically the same for the two types of batteries so charging methods for lithium polymer batteries can be used for lithium ion batteries. Let us look at an example.

For a 2 000 mah battery the charge rate would be 2 000 ma for a charge rate of c. If a lithium ion battery is discharged below 2 5 volts per cell a safety circuit built into the battery opens and the battery appears to be dead. Charging lithium iron phosphate 3 2 volt cells is identical but the constant. Charging lithium ion batteries can be split into two main stages.