(1)The open circuit voltage of the battery
(2)The internal resistance of the battery
(3)The working voltage of the battery
(4)Charging voltage
Charging voltage is the voltage added to the battery terminals by the external power source when the secondary battery is being charged. The basic methods of charging are constant-current charging and constant-voltage charging. Generally constant current charging is used, which is characterized by constant charging current in the charging process. As charging proceeds, the active material is restored, the electrode reaction area is continuously reduced, and the polarization of the motor is gradually increased.
( 5) Battery capacity
Battery capacity is the amount of power obtained from the battery, commonly expressed as C, and the unit is often expressed as Ah or mAh. Capacity is an important indicator of the battery's electrical performance. The capacity of battery is usually divided into theoretical capacity, actual capacity and rated capacity.
The capacity of the battery is determined by the capacity of the electrodes. If the capacity of the electrodes is not equal, the capacity of the battery depends on the electrode with small capacity, but never the sum of the capacity of the positive and negative electrodes.
(6) The storage performance and life of the battery
One of the main characteristics of chemical power is to be able to discharge electrical energy when in use, when not used to store electrical energy. The so-called storage performance for the secondary battery for the charge retention capacity.
For secondary batteries, the service life of the battery to measure the performance of an important parameter. Secondary battery after a charge and discharge, called a cycle (or has been this cycle). Under a certain charging and discharging system, the number of times the battery can withstand charging and discharging before the battery capacity reaches a specified value is called the secondary battery life cycle. Lithium-ion batteries have excellent storage performance and long cycle life.
