The Knowledge entry of the Lithium battery–three
3, The development prospects of the lithium-ion battery
The Lithium-ion battery is widely used in portable appliances such as portable computers, cameras, mobile communications with its unique performance advantages. At present the development of large-capacity lithium-ion battery begins to be used in the electric vehicles , expected to become one of the main power supply for the 21st century electric cars, and it will be applied in the satellite, aerospace and energy storage terms.
4, the basic performance of the battery
(1) open circuit voltage of the battery
(2) the battery internal resistance
(3) battery voltage
(4) The charging voltage
The charging voltage is the voltage the external power supply increases across the battery when battery is charging in the second time.
The basic methods of charging have time-honored charge current charging and constant voltage charging. Generally we use constant current charging, characterized in the process of charging , the charge current is constant. As the charging progresses, the active substance is recovered, the electrode reaction area is shrinking, the electrical polarization gradually is increased.