Why do electric vehicles lose power quickly in winter?
Time：
2022-10-29 13:31
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Electric vehicles are one of the main means of transportation for people. On the one hand, they comply with the long-term goal of "widely forming green production and lifestyle, and steadily reducing carbon emissions after reaching peak levels" in the central government's "14th Five Year Plan", and on the other hand, they also facilitate the daily travel of residents. According to data from the China Cycling Association, the number of electric vehicles in China will reach 340 million in 2021, which means that there will be one for every four people on average. Electric vehicles have become an important mode of travel. However, since the advent of electric vehicles, the problem of significantly reducing battery life in winter has emerged, and battery technology bottlenecks have also affected the development of the industry to some extent. Battery is also a key consideration for car owners when purchasing a car.
According to iResearch's "2022 White Paper on China's Two-wheel Electric Vehicle Industry", the main factors of concern for car owners are battery and battery life (60.9%), quality (53.9%), and power performance (52.7%). Currently, the most common batteries used in electric vehicles are lithium ion batteries and lithium ion polymer batteries, including lead acid batteries, nickel cadmium batteries, nickel hydrogen batteries, and so on. However, under low temperature conditions, electric vehicle batteries generally experience "increased power consumption and slower charging". If users leave their electric vehicles at home to charge, they can easily cause a fire. Battery life issues often cause problems for electric bicycle owners and many electric vehicle owners. "Fear of spontaneous combustion in summer, fear of power failure in winter" is a reflection of the hearts of car owners. Why do electric vehicles lose power quickly in winter? The main reasons include the following:
1.Low temperature environments can affect battery performance, leading to a decrease in energy storage capacity, which in turn reduces range.
2."In winter, when the temperature is low, the electric drive system of electric vehicles requires more power to start, so operations such as acceleration, braking, and windshield wipers all consume more power.".
3. Frequent use of electronic equipment such as lights, heating, and seat warming during driving in winter also increases power consumption.
4.Cold weather can affect the friction and air resistance of tires, increasing the energy consumption of electric vehicles.
The combined impact of the above factors has led to a poorer performance of electric vehicles in winter than in summer. Therefore, when using electric vehicles in winter, it is necessary to pay attention to sufficient battery power, reduce unnecessary power consumption, appropriately adjust driving methods, and pay attention to electric vehicle charging piles.
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