Nowadays, the power problem in the electric vehicle market has become the focus of attention, and the battery that is closely related to power must become the focus. So here comes the question: Which battery has the best performance, lithium iron phosphate battery, ternary lithium battery, or hydrogen fuel cell? What is the future trend? Today, Uncle Che will compare three new energy batteries for this issue. Who can win the final result? What about the favor? The prophecy Emperor Che is going to make a bold prediction now.
Lithium iron phosphate battery, as the name implies, is a lithium ion battery that uses lithium iron phosphate as the positive electrode material. In the early days, due to material limitations, many manufacturers tried to save costs. The lithium iron phosphate battery is stable, safe, and low in cost, so it is favored by the majority of manufacturers. Manufacturers want to reduce the cost of the battery while the cruising range can be guaranteed. Therefore, with the advancement of technology, ternary lithium batteries came into being. Why is lithium iron phosphate eliminated? It is nothing more than high energy consumption and low density. In the same cruising range, this battery has a higher weight and may have unsatisfactory energy consumption. Therefore, some experts once predicted that the development of lithium iron phosphate batteries has reached a bottleneck period, and the replacement of lithium iron phosphate batteries by ternary lithium batteries will be the historical trend of the development of new energy vehicle power batteries.
Survival of the fittest is the trend of social development. Ternary lithium batteries have high energy density and low price, which naturally become the choice of manufacturers. Who doesn’t want to reduce costs while ensuring power? In addition, "Energy Saving and New Energy Automobile Industry Development Plan (2012-2020)" clearly stated: "The energy density of the battery module is required to be greater than 150 Wh/kg". From this point of view, lithium iron phosphate batteries cannot compete with it. But is this battery really perfect? The answer is no.
The ternary lithium battery will decompose at about 200 degrees, and the electrolyte will burn rapidly. If it is in a "stove city", the temperature is too high and the environment is closed, there is a greater risk of spontaneous combustion and self-explosion. In addition, cathode materials in lithium batteries can cause heavy metal pollution if not recycled properly. However, as far as the Chinese market is concerned, this battery is still the mainstream. Whether it is a primary lithium battery or a secondary lithium battery, it contains a variety of metals and organic solvents such as electrolytes. The electrolyte has considerable corrosion and chemical toxicity. If the battery explodes and burns, it will also produce toxic chemical gases, which are harmful to the environment. create pollution.
With the shortage of energy resources, the country began to frequently issue favorable policies to carry out macro-control, hoping to replace lithium batteries with clean energy with less pollution and low cost. Hydrogen fuel cells are non-polluting, have a long service life, and emit no pollutants, which is very environmentally friendly. Uncle Che is going to start today's physics class again: the basic principle of this battery is the reverse reaction of electrolyzing water. It does not need to be charged, only needs to add hydrogen, which is convenient to use. With this battery, we no longer have to worry about charging. Car owners no longer need to spend a lot of time charging, they only need to add some hydrogen, which is as convenient as refueling now. Therefore, the industry also believes that this battery is called "the ultimate new energy power solution".