Thermal Management Of Electric Vehicle Battery Systems

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Electric vehicle battery system thermal management is not a single product, but an  integrated and intelligent temperature control system. Its core is to keep the power battery always working in the optimal range of 20-40℃, ensuring range, lifespan, fast charging and safety.

 

 

Model	NFEHP3.0-3
Working environment	-20~55℃
Refrigerant	R1234yf/R134A
Cooling liquid	50% 50% ethylene glycol/water solution
High voltage	540VDC (450-720VDC)
Low voltage	24VDC (18-32VDC)
Rated refrigeration capacity	4.5KW
Rated heating capacity	5KW
Overvoltage protection/overvoltage recovery	750/720V DC
Under voltage protection/Under voltage recovery	400/430V DC
Box color	Black
Weigh	＜35kg
Waterproof protection level	IP67

 

 

 

 

 

1. Cools the battery during high-temperature summer driving.

 

2. Preheats and maintains battery temperature during low-temperature winter starts.

 

3. Controls temperature for safety during high-power fast charging.

 

4. Provides rapid heat dissipation during frequent start-stop and hill climbing in urban environments.

 

5. Recovers waste heat from the motor to heat the battery, saving energy.

 

6. Stabilizes battery operating temperature for continuous 24-hour operation.

 

7. Enables normal operation in harsh environments such as extreme cold and high humidity.

 

8. Works in conjunction with the air conditioning and motor to improve overall vehicle energy efficiency.

 

 

Temperature Control: High-temperature heat dissipation and low-temperature preheating maintain uniform and stable cell temperature.

 

Lifespan Enhancement: Battery aging approximately doubles for every 10°C increase; temperature control significantly extends cycle life.

 

Raising Battery Range: Low-temperature preheating reduces capacity decay and improves battery life in winter.

 

Safety Guarantee: Preventing thermal runaway is a critical safety barrier for battery packs.

 

Fast Charging Compatibility: Temperature control is a prerequisite for high-power fast charging, preventing overheating during fast charging.

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1. Cool the battery at high temperatures to prevent overheating damage.

2. Preheat the battery at low temperatures to ensure range and power.

3. Control temperature during fast charging and frequent start-stop cycles to extend battery life.

 

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