What are the common faults of lithium batteries? Although lithium batteries are much better than lead-acid batteries in terms of safety performance, they can still be faulty.
To understand the causes of lithium battery failure, in order to really have problems when there is a clue to quickly carry out maintenance.
Problems arising from the production of lithium batteries
Battery internal resistance The positive and negative electrode of the battery is not welded well when welded, or the internal resistance of the rivet in contact with the pressure plate will affect the internal resistance of the lithium battery.
Too small the pores of the diaphragm can also affect the internal resistance of the battery.
Battery voltage In the production process of lithium battery, the cathode is mixed with impurities, the cathode produces dendrite will make the lithium battery voltage reduction.
In the process of forming, the incomplete formation of SEI film will also make the lithium battery voltage too low.
Problems arising from the use of lithium batteries
Unable to charge and discharge
Lithium battery in charge when charging does not enter the electricity, when used can not discharge normally, there may be the following reasons.
Protection Board protection is not restored or the protection plate failure, as well as lithium batteries and electrical appliances external short circuit, and other reasons may cause lithium batteries can not be effectively charged. Lithium Battery low Protection plate protection or controller protection, the same protection plate or controller damage will make the lithium battery can not discharge properly when used.
The same result will be produced when the line is disconnected.
Temperature anomalies If the lithium battery is charging or discharging, there is an abnormal temperature, such as too high a temperature.
This may be caused by a slight short circuit inside the lithium battery.
Suddenly stopped working
Lithium battery In the use of the process suddenly stopped working, a great possibility is the lithium battery in the power out, to the protection Board or controller of the lowest lower voltage, lithium battery self-protection function to open the power outage caused.
Long hours of working current in excess of the protective plate design to protect the current or the controller's continuous current will also cause the protection board or controller to stop working, causing the lithium battery to suddenly stop working.