1. At present, the number of lead-acid batteries for electric vehicle batteries on the market is still higher than that of lithium batteries. This may be because the price of lithium batteries is still relatively high. Therefore, the design of the existing "lithium battery" products often adopts the configuration of reducing the capacity of the lithium battery, thereby reducing the implementation cost of the whole vehicle, which also makes the existing "lithium battery" product model possible.webcam factory

　　2. Lithium ions mainly rely on the movement of lithium ions between the positive and negative electrodes to work. During charging and discharging, Li+ is inserted and disconnected back and forth between the two electrodes. When charging the battery, Li+ is separated from the positive electrode and inserted into the negative electrode through the electrolyte. The negative electrode is rich in lithium. During the discharge, the situation is just the opposite. Generally, batteries containing elemental lithium are used as electrodes, and graphite is the most used negative electrode in this step.

　　3. The electrodes of lead-acid batteries are mainly composed of lead and its oxides, and the electrolyte is sulfuric acid solution. In the charged state, the main component of the positive electrode is lead dioxide, the main component of the negative electrode is lead, and in the discharged state, the main component of the positive electrode and the negative electrode is lead sulfate.

　　Fourth, no two batteries are the same, but they are both energy storage devices. Lead-acid batteries are safer and cheaper, but lead-acid batteries are larger because their energy density is lower than that of lithium batteries. At this stage, the research on battery (energy storage) technology has not yet made a breakthrough. In other words, "low-cost, high-performance" batteries have not yet been commercialized.