Many consumers don't know when balance to buy electric car to install what kind of battery is better, some said lead-acid battery is good, some said that the lithium battery is good, that what is the difference between them? And what's good?
Actually lithium ion mainly rely on lithium ions move between the positive and negative to work. In the process of charging and discharging, Li + embedded back and forth between the two electrodes and embedded off: when the rechargeable battery, Li + embedded from the anode, after anode, electrolyte embedded in the cathode in the rich lithium state; Discharge is the opposite. Commonly used as electrode materials containing lithium batteries, one of the most negative are adopted graphite. Compared with lead-acid batteries, lithium-ion batteries, lithium batteries has light weight, large specific capacity, cycle long life and other advantages, it as a balance of electric vehicle power supply, not only convenient lightweight portable charging, but also help the whole car lightweight and simplification of product design.
Lead-acid battery electrodes is mainly composed of lead and its oxide, the electrolyte is sulfuric acid solution. Lead-acid battery charged state, the positive main ingredients for lead dioxide, negative main ingredients to lead; Discharge state, the main components are all lead sulfate is negative.
Both batteries in addition to belong to the energy storage device, the other are not the same. Lead-acid batteries are safer and cheaper, but low energy density than lithium electricity, so the volume of lead-acid battery becomes larger.
At this stage, the battery (storage) technology research has not been able to obtain a breakthrough, "low cost, high performance" that the battery has not yet been put into commercial application before we can be of existing lead-acid battery and lithium battery together the excellent characteristic of transformation and upgrading, as at present and the future for a period of major research topic. Believe that the balance of electric cars in the future, even the whole electric walking the development of car industry has a more clear direction.
