Electric Vehicle (EV) low voltage 12V battery
No matter which kind of powertrain, EV always faced obstacles of 12V battery.
Whether it is a low voltage 12V or high voltage power battery, the low temperature causes the lithium ion activity in the battery to decrease, resulting in poor charging and discharging efficiency.
The main reason is that lead-acid batteries used in fuel-fired vehicles only discharge unidirectionally during ignition, and the generator automatically charges the battery after ignition, without causing deep battery discharge. However, electric vehicles often have more than 60% deep discharge, resulting in an increase in lead sulfate concentration (crystallization), and the sulfation will be quite serious. The high current discharge, deep discharge, late charging, frequent charging and short charging time of electric vehicles accelerate the end of lead-acid batteries.
If an electric car uses lead-acid batteries as low-voltage 12V batteries, there is no instantaneous high current and high power to shake off the deposits on the lead-acid electrode plates like in a fuel car, and the lead-acid batteries are installed in electric cars for a long time with low current operation.
RCE proposes a LFP battery + super capacitor combination for low voltage 12V batteries in electric vehicles, which is a super LFP battery solution that completely eliminates the problems of pure lead-acid batteries or pure LFP batteries. Super LFP battery provides functions including stable current, self-emergency rescue, power failure and anti-theft, ultra-low temperature start, and intelligent monitoring through APP data connection and cloud big data, which is the best integrated solution for car battery.