Lithium ion battery: Notes

The lithium ion battery is used in vehicles with a

12 V vehicle electrical system. The lithium ion battery is characterized by a high energy density. However, it requires electronic overvoltage protectors in most

uses. One advantage of the lithium ion battery is its behavior during energy recovery. The lithium ion battery is subject to very little memory effect. Lithium ion batteries are further categorized in accordance with their structure and the material used for the electrodes: In this case, it is a lithium iron phosphate battery at the cathode. Its characteristic data vary in accordance with the design and essentially depend on the electrode material and electrolyte used.

The most important characteristic data are the following:

• Voltage of the battery cells
• Sensitivity to temperature
• Maximum allowable charging current
• Maximum allowable discharge current

The lithium ion battery is mainly used as a power source for starting the combustion engine, for lighting and for other electrical consumers in the vehicle electrical system.

The capacity of the lithium ion battery is 69 ampere-hours (Ah). At this capacity, the size of the battery housing is equivalent to that of an AGM battery with 90 Ah.

The weight of the lithium ion battery is approx. 13.6 kilograms. The weight savings when compared to a 90 Ah AGM battery is roughly 12 kilograms.