The Ultimate Buyer's Guide for Purchasing China battery thermal management system for electric vehicles Supplier

Guchen plays a key role in delivering innovative thermal management solutions that meet these complex needs.

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Thermal management strategy for conventional fuel vehicles

The thermal management strategy for conventional fuel vehicles generally divides its functions into the powertrain thermal system and the cabin thermal system. Its main circulation systems include
Engine cooling circulation: relatively simple, mainly comprising the engine, radiator, thermostat and water pump.
Air conditioning cycle: The key components include the condenser, compressor and expansion valve.
Charge-air cooling system: This system increases the intake air volume of the engine to improve power performance. Since the temperature of the pressurized air is high, the intake air temperature must be reduced by a charge-air cooler. The main components include a supercharger and charge-air cooler.

 

The thermal management system for new energy vehicles adds the cooling requirements of components such as the battery, motor and control system. It is equivalent to adding the thermal management of the &#;three electric systems&#; (battery, motor and electronic control system) to the thermal management of traditional vehicles, and the requirements for thermal management strategies are higher. 

The thermal management system for new energy vehicles mainly includes the following three parts:

• Air conditioning system:

The air conditioning system of traditional fuel vehicles is driven by the engine to drive the compressor, while new energy vehicles use an electric compressor.
In fuel vehicles, the air conditioning and engine are relatively independent, while the cooling systems of the three electric batteries in new energy vehicles are closely

linked, and the battery cooling system usually shares the cold source with the air conditioning system.

Usually, a larger power compressor is selected for sharing to meet the cooling needs of the air conditioning and battery.The battery does not need too much cooling when the vehicle is just starting, thus more power can be directed to the air conditioning at this moment to rapidly lower the temperature inside the car. This design not only guarantees sensi

ble use of resources to enable the vehicle to run effectively under various operating situations, but also increases the cooling efficiency of the air conditioning.

In fuel vehicles, the heating process relies on the engine as a heat source, using a water pump to drive the water circulation. In contrast, new energy vehicles primarily utilize electric heating. A more energy-efficient solution is the adoption of heat pump air conditioning systems, which enhance overall energy management and efficiency.

The ideal running temperature range for power batteries is 20&#;30°C according to battery thermal management systems. Low temperatures may lower battery capacity and cause poor charging and discharging performance; high temperatures will degrade the cycle life of the battery and even cause safety concerns like explosions.
A battery pack is formed by several battery cells coupled in both series and parallel; the heat produced while charging and discharging will influence each other. To thus guarantee that the battery pack stays within a reasonable temperature range, a sophisticated battery thermal management system is needed.

• Motor and electronic control system thermal management:

The motors and electronic control systems of new energy vehicles require high heat dissipation during operation and usually need active cooling. These components often only require cooling devices.

Summary

The thermal management system of new energy vehicles needs to meet a variety of requirements, such as cabin air conditioning (cooling, heating, defogging, etc.), battery pack temperature control, and heat dissipation of motors and controllers. With the continuous improvement of the requirements for comprehensive vehicle energy management, the thermal management system is gradually pursuing higher compactness and lightweight design.

If you are struggling with thermal management issues, the Gushen brand is the best choice for you. We have professional customized thermal management solutions . Whether it is in the field of new energy vehicles, heavy trucks or construction machinery, we can effectively solve your thermal management problems, ensure stable operation of equipment, improve efficiency and reduce costs. Choose Guchen and let us work together to usher in a new era of worry-free thermal management.

The thermal management system of a vehicle takes a systematic and holistic approach to the relationship between heat, the engine, and the vehicle as a whole, controlling and optimizing heat transmission through a variety of techniques. The system can automatically adjust the cooling intensity based on driving and environmental conditions to ensure that the cooled object operates within an optimal temperature range, thereby optimizing the overall vehicle's environmental performance and energy-saving effect, as well as improving operational safety and driving comfort.The thermal management strategy for conventional fuel vehicles generally divides its functions into the powertrain thermal system and the cabin thermal system. Its main circulation systems includeEngine cooling circulation: relatively simple, mainly comprising the engine, radiator, thermostat and water pump.Air conditioning cycle: The key components include the condenser, compressor and expansion valve.Charge-air cooling system: This system increases the intake air volume of the engine to improve power performance. Since the temperature of the pressurized air is high, the intake air temperature must be reduced by a charge-air cooler. The main components include a supercharger and charge-air cooler.The air conditioning system of traditional fuel vehicles is driven by the engine to drive the compressor, while new energy vehicles use an electric compressor.In fuel vehicles, the air conditioning and engine are relatively independent, while the cooling systems of the three electric batteries in new energy vehicles are closelylinked, and the battery cooling system usually shares the cold source with the air conditioning system.Usually, a larger power compressor is selected for sharing to meet the cooling needs of the air conditioning and battery.The battery does not need too much cooling when the vehicle is just starting, thus more power can be directed to the air conditioning at this moment to rapidly lower the temperature inside the car. This design not only guarantees sensible use of resources to enable the vehicle to run effectively under various operating situations, but also increases the cooling efficiency of the air conditioning.The ideal running temperature range for power batteries is 20&#;30°C according to battery thermal management systems. Low temperatures may lower battery capacity and cause poor charging and discharging performance; high temperatures will degrade the cycle life of the battery and even cause safety concerns like explosions.A battery pack is formed by several battery cells coupled in both series and parallel; the heat produced while charging and discharging will influence each other. To thus guarantee that the battery pack stays within a reasonable temperature range, a sophisticated battery thermal management system is needed.The motors and electronic control systems of new energy vehicles require high heat dissipation during operation and usually need active cooling. These components often only require cooling devices.The thermal management system of new energy vehicles needs to meet a variety of requirements, such as cabin air conditioning (cooling, heating, defogging, etc.), battery pack temperature control, and heat dissipation of motors and controllers. With the continuous improvement of the requirements for comprehensive vehicle energy management, the thermal management system is gradually pursuing higher compactness and lightweight design.

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1. How long does an EV battery

last?

By far one of the main concerns drivers have about electric cars is their battery&#;s longevity &#;in our Mobility Monitor research 33 percent of potential EV drivers stated it as an essential concern. More recently, the Green Finance Institute found that 62% of drivers who said they wouldn&#;t buy a second-hand EV cited concerns around battery lifespan. In addition and in that same report, the majority of dealerships recognized battery lifespan as one of the top consumer concerns in the context of used EVs.

The EV battery will outlive your electric car

EV batteries are built from the start to be resilient and durable. Currently, most electric car batteries are estimated to last between 15 and 20 years before they need replacing. By comparison, the average life expectancy of a traditional car is currently only 12 years, so EV batteries will likely outlive the vehicle they&#;re in.

EVs are estimated to lose an average of 2.3 percent of their battery capacity per year. In other words, if you purchase an EV today with a 240 km (150 miles) range, you&#;ll have only lost about 27 km (17 miles) of accessible range after five years. Overall, EVs are projected to last between 100,000 and 200,000 miles, (160,000 km &#; 320,000 km) before their battery needs replacing. It&#;s worth also remembering that most manufacturers offer an 8-year warranty or a 160,000km (100,000 mile) drive limit, so you&#;ll be protected against any unexpected defects or early failure.

But aren&#;t EV batteries made from the same material as the batteries in smartphones?

In a way, yes. But there&#;s more to it.

Like most consumer electronics, EV batteries use lithium-ion technology to store and release energy. Compared to other types of batteries, lithium-ion has a high energy density, meaning it can store a high amount of energy in a given weight.

But there&#;s more to an EV battery than just lithium-ion.

The battery in, for example, a mobile is consumer-grade, which means it&#;s optimized for maximum runtime at low cost. Also, it&#;s a lot smaller.

An EV battery is made to industry standards with longevity in mind. A big difference is how the energy is used.

Unlike your or laptop, EVs are made up of thousands of individual lithium-ion cells and they have built-in protection mechanisms to protect against aging and wear.

After a mobile is charged, the stored energy can be fully utilized until the battery goes empty. In other words, the user has full access to the stored energy.

Today, EVs have an advanced battery management system, commonly referred to as BMS. This intelligent system controls every aspect of battery charging and discharging, protects battery cells, and ensures you have enough range for years to come.

The BMS can set aside some capacity to protect the battery and redistribute energy to ensure cells are being used evenly. It can also adjust charging depending on the weather conditions, for example, by slowing or stopping charging completely in extremely cold or warm weather to protect battery cells.

How to extend your EV battery&#;s life?

Of course, like any other product, eventually, it will perform less optimally.

Although advancements in EV battery technology have increased the longevity of electric vehicles, it is important to take appropriate steps to maintain and optimize battery performance. Here are 3 handy tips to extend your EV battery's life:

1. Minimize Daily Charging: Avoid charging your EV daily to reduce battery stress.
2. Maintain 20-80% Charge: Only charge 100 percent when needed for long trips.
3. Manage the State of Charge for Storage: During long-term storage, maintain the battery charge between 25%-75%

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Contact us to discuss your requirements of China battery thermal management system for electric vehicles Supplier. Our experienced sales team can help you identify the options that best suit your needs.