The composition of lithium batteries
The lithium battery is mainly composed of two blocks, the battery cell and the protection board PCM (power battery-generally called the battery management system BMS). The battery cell is equivalent to the heart of the lithium battery, and the management system is equivalent to the brain of the lithium battery. The battery core is mainly composed of positive electrode material, negative electrode material, electrolyte, diaphragm and shell, while the protection board is mainly composed of protection chip (or management chip), MOS tube, resistor, capacitor and PCB board.
In 2009, my country first introduced the "cars to the countryside" policy. Car sales surged by 46.1% that year, reaching the highest growth rate in the past 20 years. At present, the demand for new energy vehicles is falling into the new normal of sluggish and fluctuating development, and there are opinions that need a new round of policy promotion. So, is "new energy vehicles going to the countryside" realistic or not?
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