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BMS becomes a watershed
The huge demand for car power batteries has created a golden age for battery giants.
The 2018 global power battery shipment data released by the High-Tech Lithium Battery Research Institute shows that TOP10 battery giants such as Ningde Times, Panasonic, SDI, LG Chem, BYD, and Guoxuan Hi-Tech have shipped a total of 86.1GWh, in the global total. The proportion reached 81.2%, showing signs of increased industry concentration and head effect amplification.
Considering that the power battery is the core component of the electric vehicle, this phenomenon is similar to the traditional automobile industry, Aisin, ZF, Getrag, in the transmission industry, that is, the level of innovation in the related fields. In fact, it depends on some supply chain giants.
In other words, if electric car companies want to solve mileage anxiety from the power battery, it depends to some extent on the technological advancement of these battery giants.
At the 2019 World New Energy Vehicle Conference in July this year, Zeng Yiqun, chairman of Ningde Times, said that by 2025, the energy density of power batteries is expected to reach 250Wh/kg, and the price can be 700 yuan without tax. The price is 950 yuan to 1150 yuan.
This means that the battery life of the power battery will increase and the price will drop. Therefore, Zeng Yiqun said that the life cycle cost of the electric vehicle in 2025 will be lower than that of the fuel vehicle.
Zeng Yiqun’s words indicate his right to speak in this field, because the performance of the battery giant is a key part of the mileage anxiety that an electric car brings to people.
There is a problem, is the car company in this regard to be at the mercy of the battery?
Not all, the more important is the BMS (Battery Management System). After purchasing battery hardware from a third party, the moment to test the core technology of the car company began.
In fact, like batteries, BMS is also an open market. For example, the Ningde era also offers packaging solutions including BMS.
However, for a car company, how to maximize the battery life potential, overcome mileage anxiety, and ensure adequate safety redundancy, it depends on the BMS system including battery status monitoring, thermal management, charging and discharging Optimized design and background algorithms, etc.