New energy vehicles' winter endurance in northern China

Jan 04,2025

The range of new energy vehicles in winter in the north can be summarized as follows:

1. Reason for range degradation: Decreased battery performance: In low-temperature environments, the electrolyte inside the battery becomes viscous, and the migration rate of lithium ions slows down, leading to a decrease in battery activity and affecting the battery's charging and discharging power and available energy, resulting in a decrease in range. Heating system power consumption: New energy vehicles need to turn on the heating system in winter, such as air conditioning hot air, seat heating, etc. These devices will consume additional electricity, further reducing the range. Other factors, including increased winter driving resistance and driving habits, can also affect the range.

2. Range degradation degree: Generally speaking, in northern regions, when the temperature drops to a lower level, the range of new energy vehicles may be directly halved or even more. The specific degree of attenuation depends on factors such as vehicle model, battery capacity, battery technology, driving habits, and whether insulation measures have been taken. According to the 2022 winter test results of new energy vehicles released by DCD, the average range achievement rate of the test models at low temperatures is 48.5%, with an average range of 268 kilometers, which is significantly lower than that in normal temperature environments.

3. Methods to improve battery life: Use high-performance batteries: Use batteries with higher energy density and better low-temperature performance, such as ternary lithium batteries. Strengthen insulation measures: Insulate the battery pack to reduce heat loss and improve the performance of the battery at low temperatures. Optimizing the heating system: adopting efficient heating equipment such as heat pump air conditioning to reduce the energy consumption of the heating system. Adjust driving habits: Avoid violent driving modes such as sudden acceleration and deceleration to reduce energy consumption. Reasonably plan the itinerary: Based on the actual range and driving route of the vehicle, plan the itinerary reasonably to avoid getting into trouble when the battery is low.

The above information is for reference only, and the specific range needs to be comprehensively judged based on factors such as vehicle model, battery capacity, and usage environment.