Regarding the recent fire at a high-rise building in Vietnam, there has been speculation that the cause might be related to Electric batteries. However, the ultimate cause was determined to originate from a gasoline-powered motorcycle. This raises the question: Are electric or gasoline-powered vehicles more prone to fire or explosion? In reality, due to advanced manufacturing technology, lithium-ion batteries are considered to be very safe.

New technologies in Electric Vehicle batteries, particularly improvements in fire resistance, are the main driving force of the green revolution. These technological breakthroughs not only address battery issues but also make electric vehicles safer and more beneficial for the environment.

Advanced Battery Management System with Instant Intervention Capability

The Advanced Battery Management System (BMS) plays a crucial role in improving the safety of Electric Vehicle Batteries by managing and monitoring their condition. The BMS currently uses various sensors and algorithms to keep the batteries operating within safe limits.

Temperature sensors are used to continuously monitor the battery temperature to ensure it stays within safe limits. If there are significant signs of temperature increase, the BMS will intervene by reducing the charging rate or even disconnecting immediately to prevent overheating.

In addition, voltage levels are monitored through voltage sensors, which can signal potential failures. If the voltage becomes unstable or exceeds the allowed limits, the BMS will intervene quickly to ensure safety.

Battery Cell Balancing Reduces the Risk of Overheating

Another important task in battery management is balancing the battery cells. Normally, individual lithium-ion battery cells within a battery pack may have uneven capacity and characteristics. This can result in uneven charging and discharging over time, increasing the risk of overheating.

However, this issue has been addressed in modern BMS systems through cell balancing processes, which help maintain consistent performance across all cells, reducing the likelihood of an unstable or overheating cell.

Thermal Management Technology Ensures Battery Cooling in All Conditions

To limit the risk of overheating, electric vehicle manufacturers have been investing in advanced thermal management technologies that can maintain ideal temperatures for batteries in all situations. Liquid cooling systems are commonly used in many electric vehicles today. These systems utilize a network of pipes containing water or cooling solution to dissipate heat generated during charging and discharging. Some electric vehicles also feature active cooling with fans or pumps to control temperature more effectively.

Unlike conventional gasoline vehicles, electric vehicles have advanced thermal management systems, robust battery casings, and strict adherence to safety regulations, significantly reducing the risk of fire, especially in underground garages.

New Materials with High Heat Resistance

The materials used in battery production have also seen significant improvements to enhance safety. Researchers have discovered new electrode materials with improved stability at high temperatures and reduced vulnerability to thermal runaway. For example, a silicon-based positive electrode is seen as a potential replacement for traditional graphite electrodes, allowing batteries to store more energy.

Fire-Resistant Battery Casings and Dedicated Safety Systems

Aside from active safety features, electric vehicle manufacturers are also incorporating additional solutions such as fire-resistant battery casings and dedicated safety systems that can isolate a faulty or overheating cell.

In the event of a collision or external damage, sensors and safety systems can quickly disconnect and isolate the affected area to avoid serious damage. This not only ensures passenger safety but also minimizes the risk of widespread fire in the event of a fire.

Electric Vehicle Batteries Meet Strict Safety Regulations

To ensure the safety of electric vehicle batteries, governments and regulatory agencies have established strict testing and certification systems. Electric vehicle manufacturers must comply with specific standards for each market, including aspects such as performance, safety, and battery durability.

For instance, the United Nations Global Technical Regulation on Electric Vehicle Safety sets out specific safety criteria for electric vehicles, including battery safety. Compliance with these regulations ensures that products meet stringent safety standards, thereby reducing the risk of battery-related incidents.

The development of electric vehicle battery technology always prioritizes safety, particularly in reducing the risk of fire and explosions. The current technology and design of electric vehicle batteries have made remarkable advancements, providing a safer journey for everyone.

In fact, incidents of electric vehicle battery fires are extremely rare. The aforementioned efforts to improve safety technology and adhere to strict management standards have demonstrated the safety level of electric vehicles and built trust within the community for this new type of vehicle. Technological advancements will play a crucial role in driving public acceptance. Undoubtedly, the future of electric vehicle battery technology lies not only in expanding the range and improving performance but much more!

Currently, many high-rise buildings around the world, whether offices or residential complexes, have designated areas for electric vehicle charging as regulated. For example, in Japan, the government has relaxed regulations on the establishment of fast-charging stations for electric cars to complete the charging infrastructure and meet the increasing demand. The target by 2030 is to install 150,000 charging stations nationwide, including 30,000 fast-charging stations.

Source: Technode Global

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