The reason why lithium battery becomes the power battery

Everyone knows that lead-acid batteries used to be smash hits. Many electric vehicles use lead-acid batteries. However, lead-acid batteries have a problem that is polluted. Modern people pay more and more attention to the concept of environmental protection. The electric vehicle was gradually replaced by a lithium battery electric vehicle. Compared with lead-acid batteries, why can lithium batteries become power batteries, and the development is getting better and better?

In terms of big features, at present, lithium batteries are widely used in mobile phones, computers and other equipment. New energy vehicles are useful, but they are not as important and extensive as in small applications. Corresponding to the lithium battery, it can even be said that the fuel cell is complementary. This battery seems to be born naturally for electric/hybrid cars. So for electric cars, should we choose lithium batteries or fuel cells? Here you still need to compare the main parameters to explain.

1. Cost: High cost and complicated hydrogen production process have become the main obstacles to the development of fuel cells. Lithium-ion batteries are relatively inexpensive to produce, and their recharge utilization is very convenient, which is more cost effective than other portable energy sources.

2. Environmental protection: the impact of the two on the environment is very small. The discharge product of the combustion battery is water, and does not generate greenhouse gases generated after gasoline/diesel combustion. Lithium-ion battery discharge products may have lithium oxide, lithium hydroxide, etc., and will not affect the environment. In addition, lithium ion batteries can be reused.

3. Reaction materials: The fuel cell uses a polymer membrane as an electrode to support the production of electrical energy after the hydrogen and oxygen reaction. Polymer films must be specially processed to withstand high temperatures and mechanical stresses. Lithium-ion batteries rely on lithium ions to adsorb charge reserves or release electrical energy. Lithium ions are very light in quality and are therefore ideal for automotive power batteries.

4. Potential: If the cost of a fuel cell can be reduced, it can truly be used as an alternative energy source for gasoline/diesel fuel. If the lithium battery energy density can be further improved and the cycle life can be longer, it is also an excellent driving energy source.

5. The real challenge: For fuel cells, there are a number of technical problems waiting to be resolved. The problem with the development of lithium-ion batteries is that the charging infrastructure is generally less popular.

Although the advantages and disadvantages of fuel cells and lithium batteries are different when they are used as power batteries, they are ideal vehicle batteries. In current car energy storage facilities, they can be regarded as two types of power supplies that complement each other.

The page contains the contents of the machine translation.