Introduction:
Cold weather causes challenges for electric vehicle owners. Electric Vehicles are getting frozen in cold weather. It is experienced by many electric vehicle drivers and even experts say that cold weather is causing a 30% loss in battery range and an increased charge time (approx. Triple) for electric vehicles.
Electric vehicles are facing problems like fall in performance, less battery life, bigger charge times, etc.
In a city like Pennsylvania in the United States, cold weather is causing serious problems for electric vehicle owners. In winter weather at extreme cold, the batteries of electric vehicles are going discharge faster and take much extra time to recharge it again.
An electric car owner at a Tesla charging station near Chicago shared that “I was at 50% when I got here and usually it takes 10 to 15 minutes to charge from 50 to 80, 90% but now in the cold it is taking an hour and 20 minutes for the same.
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Reason for Battery-Troubles of Electric Vehicles in Cold:
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The experts of electric battery and fuel cells states the cold weather is causing organic chemical reactions within the chemical substances of the electric battery and that slows down its performance exponentially. The experts say battery range for electric vehicles can be reduced by up to 30% in the cold and at zero degrees can lose 10 times the amount of power. The re-charging of the batteries can take double and even triple times in the cold.
As told by the battery & fuel cells specialist and Chair Professor at Penn State’s Department of Material Science and Engineering, Mr. Chao- Yang Wang, told, “The chemistry in the battery will slow down almost exponentially with the decreasing temperature”.
As of now, the current electric vehicle charging infrastructure is less in number and at are far in distance which is also a trouble for the electric vehicle owner to go for a long in the cold.
The characteristics of lithium-ion batteries are very sensitive to excess temperature in cold weather. The battery-making companies are working continuously to develop better technology to nullify the existing defects and improve the performance of electric vehicles for all climates.
Electric vehicle (EV) batteries can experience challenges in cold weather due to several factors:
1. Temperature Sensitivity of Lithium-ion batteries of Electric Vehicles:
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Most electric vehicles use lithium-ion batteries, which are sensitive in case of excess temperatures. The efficiency of the lithium-ion batteries decreases in cold weather and the capacity to provide and accept the charge weakens. The chemical reactions within the battery become slower in colder temperatures and decrease the overall performance.
2. Reduced Energy Storage Capacity:
The energy storage capacity of lithium-ion batteries is minimal in cold weather. And when the temperature drops, the internal resistance of the battery rises, and it creates difficulty for electrons to move within the cells and the overall energy output of the battery decreases.
3. Increased Internal Resistance:
The internal resistances of the batteries are high in cold temperatures, which causes higher losses during the charging and discharging processes. This internal resistance can cause the battery to heat up during the process and this may further reduce the overall efficiency of the battery.
4. Charging Limitations:
In cold weather during charging the battery, gets overheated, and due to this reason, it takes longer time to charge the battery of the electric vehicles.
5. Range Reduction:
In cold, the battery energy of electric vehicles is used for heating the systems, which affects significantly the driving, range of the electric vehicles.
Solution of Electric Vehicles Battery Low Charge in Cold Weather:
Battery pre-conditioning:
To overcome the impact of cold weather on electric vehicle batteries, many electric vehicles are now coming with the facility of battery pre-conditioning systems. These systems are used to heat and the battery before starting the vehicle, which improves the performance of the battery.
Experts suggest using the pre-condition setting offered in some electric vehicles to optimize the battery performance in cold weather. Drivers should also ensure a full charge and keep their electric vehicles in warmer condition when not in use as possible.
Whenever electric vehicle drivers notice that their vehicles are performing less in the cold, They should know to practice some necessary tips to maximize the battery life and better performance.
Conclusions:
The electric vehicle market is growing globally and many different players like Tesla, BYD, Toyota, Hyundai, Mercedes, and many more are involved in manufacturing and R&D.
Despite, the current battery technology has trouble in combating the issue; however, innovations are going on by different institutions. The scientific solution to this problem is available but it will take time for the automobile industries to implement it practically. It is expected that within four to five years this problem will go away completely.
By the time, a basic preparatory work is required to do before you make a trip, like checking you’re a battery at its full charge capacity, and pre-heating of the vehicle.
