Technical advantages of 48V lithium battery pack system

Technical advantages and applications of 48V lithium-ion battery pack system for vehicles. The 48V mild hybrid system is mainly composed of a 48V lithium-ion battery pack, a motor with an integrated AC/DC inverter, and a DC/DC converter. The 48V power supply system can store more electricity than the 12V power supply system. In the car equipped with the start-stop system, the engine can be turned off for a long time, and the situation of frequent engine charging due to low battery power can be reduced.

Technical advantages of 48V lithium-ion battery pack system for vehicles

Although 12V start-stop is low cost, it has limited carbon dioxide emission reduction; high-voltage hybrid power reduces emissions more, but the system cost increases more; 48V lithium-ion battery pack system is close to the cost of 12V start-stop system, and supplies products close to high-voltage hybrid power technology. performance; at the same time, carbon dioxide emissions can be reduced by up to 15%; and the 48V lithium-ion battery pack system can supply loads other than the power system, such as air conditioning, steering, seat heating, etc.

At present, the mainstream in the Japanese market is a strong hybrid vehicle equipped with a high-voltage battery above 100V, which uses a lithium-ion rechargeable battery module above 100V. Although it can greatly improve fuel efficiency for a hybrid electric vehicle (HEV), special Components and withstand voltage components are expensive. The use of a 48V lithium-ion battery pack system will also increase the cost, but compared with the cost of a pure electric vehicle or a strong hybrid vehicle, it can save 40% to 60% of the cost.

One of the keys to the 48V lithium-ion battery pack system lies in the lithium-ion battery technology, which can provide higher (3 times) energy density than lead-acid chemical batteries, while reducing size and weight. At the same time, the charging performance of the 48V lithium-ion battery is better, which can more efficiently store the energy recovered by braking the car, and provide more and more electronic loads required in the car (such as front seat heating, heated windshield, etc.) , rear shock absorber) supply support.Also read:48v 105ah lithium battery golf cart battery

The 48V lithium-ion battery pack loads the BMS substrate, battery cells, relays, and fuses in the same box, which has strong assembleability and high reliability, and further improves related technologies.

Advantages and characteristics of 48V lithium-ion battery pack system

Flexible platform design, directional R&D, support for customization, and can provide personalized services according to the needs of different OEMs

Easy maintenance and low maintenance cost

low noise

Enhanced durability and impact resistance

Strong battery life, low self-consumption, long battery life

High energy density, small size, light weight, and diverse shapes

Application of 48V lithium-ion battery pack system for vehicles

Due to the lag in battery technology innovation, the development of pure electric vehicles is slow. Therefore, some experts said that the hybrid power system is more in line with the current demand for energy saving and emission reduction. In the hybrid system, the use of 48V lithium-ion battery packs is the most cost-effective.

Lithium-ion battery packs for vehicles are power lithium batteries for hybrid vehicles and electric vehicles. Since some technical properties of nickel-metal hydride batteries, such as energy density and charge-discharge speed, are close to the theoretical limit, lithium-ion batteries have high energy density and high capacity. The advantages of large size and no memory have been unanimously recognized by automobile manufacturers and battery manufacturers. At present, the focus of research and development in various countries is lithium-ion batteries.Recommended reading:48V Lithium ion Battery for Electric Bike

The 48V system is an improvement and upgrade of the 12V "micro-hybrid system". The BSG motor is used to replace the traditional starter motor and generator, which is equivalent to an enhanced version of the automatic start-stop system. In addition to the automatic start-stop function, the 48V system can also supply auxiliary power when necessary to reduce fuel consumption when starting.

As far as power lithium batteries are concerned, at present, ternary lithium-ion battery packs, lithium iron phosphate battery packs, and lithium titanate batteries are all used in the field of electric vehicles. The 2020 technology upgrade stage. The industrialization of new lithium-ion batteries has been realized. The specific energy of energy-type lithium-ion batteries has reached 350Wh/kg, and the specific energy of energy-power lithium-ion batteries has reached 200Wh/kg. Intelligent manufacturing of power lithium batteries has been realized, product performance and quality have been greatly improved, and costs have been significantly reduced. The economy of pure electric vehicles is basically equivalent to that of traditional gasoline vehicles, and plug-in hybrid vehicles have entered the stage of popularization and application.

The 48V lithium-ion battery pack system can supply more functional integrations such as energy recovery system, automatic start-stop system, etc. The 48V lithium-ion battery system can effectively absorb the braking energy of the car and convert it into kinetic energy to supply to the car, satisfying the needs of people more and more come higher demand.

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