In recent years, with the establishment of a national new energy strategy and continuous investment in research and development, the development prospects of electric vehicles have become increasingly clear, and more and more companies have invested in them. Major auto companies have stepped up their R&D efforts on electric vehicles. The news that electric vehicles are off the assembly line and the market is coming and going. The application of a group of pure electric vehicles at the Shanghai World Expo has further brought people closer to electric vehicles. The popularity of electric vehicles seems to be in sight. How far is the electric car from us? Is its technology mature? How far is it from industrialization? The three core technologies are far from mature at present, and the on-board energy management system (battery management) is one of the key technologies to be solved urgently.
The on-board energy system is one of the three core technologies of electric vehicles. It is like the engine of a traditional internal-combustion engine, and it is the “heart†of electric vehicles and the only source of power for electric vehicles. It accounts for 1/3 of the total cost of electric vehicles. The technical level of the on-board energy system is directly related to the quality level and safety of electric vehicles. The energy management system (BMS) is an important part of this core technology. As the vehicle power system is a huge battery pack, which is composed of dozens or even hundreds of single cells, the consistency and balance of the battery are crucial. It is related to the life and safety of the battery. The function of the energy management system is to monitor the status of each battery and the battery level, health, and high-voltage leakage detection to ensure the balance of these hundreds of batteries. Its importance is obvious. In recent years, lithium-ion batteries have become the mainstream choice for power batteries because of their superior performance. The investment in lithium-ion batteries at home and abroad is also very large. The characteristics of lithium batteries make the role of the battery management system even more important.
The number of charge and discharge cycles of a conventional lead-acid battery single 2V battery can reach 1,000 times. However, when the single battery is composed of a 36V or 48V battery pack, the overall number of cycles is reduced to about 400 times. If the voltage increases, the overall number of cycles decreases again.
O2Micro's aerobic lead-acid battery technology implants power management chips in traditional lead-acid battery modules. By using power management and equalization, the number of charge/discharge cycles of the battery pack is the same as that of the single cells, which can effectively extend the tradition. The service life of lead-acid batteries is 1-2 times, and their recoverability is greatly improved. According to a conservative estimate, based on the current total of 130 million EVs in China, the application of aerobic lead-acid battery technology will save China about 1.2 megatons of lead. If a lead with a cross-sectional diameter of 5 centimeters is to be produced, It can be a week around the earth; it can save 57 trillion Chinese, equivalent to a population of 350,000 people in Weihai City, a year of household electricity consumption. The advent of this technology will greatly reduce the cost of use of consumers. For dealers and manufacturers, it will also reduce the rate of battery repair and return rate, while reducing the use and emissions of lead, to protect the environment, build a green transport system with Significance.
The on-board energy system is one of the three core technologies of electric vehicles. It is like the engine of a traditional internal-combustion engine, and it is the “heart†of electric vehicles and the only source of power for electric vehicles. It accounts for 1/3 of the total cost of electric vehicles. The technical level of the on-board energy system is directly related to the quality level and safety of electric vehicles. The energy management system (BMS) is an important part of this core technology. As the vehicle power system is a huge battery pack, which is composed of dozens or even hundreds of single cells, the consistency and balance of the battery are crucial. It is related to the life and safety of the battery. The function of the energy management system is to monitor the status of each battery and the battery level, health, and high-voltage leakage detection to ensure the balance of these hundreds of batteries. Its importance is obvious. In recent years, lithium-ion batteries have become the mainstream choice for power batteries because of their superior performance. The investment in lithium-ion batteries at home and abroad is also very large. The characteristics of lithium batteries make the role of the battery management system even more important.
The number of charge and discharge cycles of a conventional lead-acid battery single 2V battery can reach 1,000 times. However, when the single battery is composed of a 36V or 48V battery pack, the overall number of cycles is reduced to about 400 times. If the voltage increases, the overall number of cycles decreases again.
O2Micro's aerobic lead-acid battery technology implants power management chips in traditional lead-acid battery modules. By using power management and equalization, the number of charge/discharge cycles of the battery pack is the same as that of the single cells, which can effectively extend the tradition. The service life of lead-acid batteries is 1-2 times, and their recoverability is greatly improved. According to a conservative estimate, based on the current total of 130 million EVs in China, the application of aerobic lead-acid battery technology will save China about 1.2 megatons of lead. If a lead with a cross-sectional diameter of 5 centimeters is to be produced, It can be a week around the earth; it can save 57 trillion Chinese, equivalent to a population of 350,000 people in Weihai City, a year of household electricity consumption. The advent of this technology will greatly reduce the cost of use of consumers. For dealers and manufacturers, it will also reduce the rate of battery repair and return rate, while reducing the use and emissions of lead, to protect the environment, build a green transport system with Significance.
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