Charge 80% in 15 minutes, CATL detonates the energy revolution and releases a new generation of sodium-ion batteries
New generation sodium ion battery
The revolutionary moment in the battery field has arrived...
On July 29, CATL released a revolutionary battery: charge 80% in 15 minutes; discharge at minus 20 degrees without attenuation.
Someone may ask, isn’t it just batteries? Why is it revolution?
As you may know, one of the shortcomings restricting the development of electric vehicles is that charging is too slow, which affects long-distance travel, so that some people describe electric vehicles as grocery shopping carts. Every winter, the battery life of electric vehicles is greatly reduced, and some are even half of the nominal mileage. The battery perfectly solves the above problems, and the price of this battery is 30% lower than that of lithium batteries, which means that it not only solves the problems of low temperature attenuation and slow charging of lithium electric vehicles, but also greatly reduces the cost. Do you think this Revolutionary battery?
However, this kind of battery is not a new thing. Some people have begun to study it as early as 40 or 50 years ago, and the name is nano-ion battery. Back then, sodium batteries and lithium batteries developed simultaneously, but compared with lithium batteries, the energy density of sodium batteries was too low and was eliminated by lithium batteries.
Then why did the Ningde era put it out like a baby again? There are two reasons:
First: resource crisis
The main raw material of lithium batteries is lithium. An electric car consumes about 60kg of lithium. The world's proven lithium resource reserves are only 80 million tons, and China's lithium resources account for only 6% of the global total, and 80% of lithium Resources rely on imports. We have experienced oil jams for decades, but we cannot repeat the same mistakes in the field of new energy. Moreover, the price of lithium has been rising in recent years, and the cost of lithium batteries has remained high.
Sodium batteries are different. There are too many sodium resources. The abundance of sodium in the earth's crust reaches 2.75%, which is more than 400 times that of lithium. The reserves are abundant and widely distributed, and are not restricted by region at all. We all know the salt we eat every day. That is called sodium salt. The salt is cheap. If sodium ion batteries are used on a large scale, there is no need to worry about sodium resources.
Second: CATL relies on lithium batteries to become the world's first, but the lithium resource is lacking, the lithium battery is slow to charge, the high and low temperature performance is poor, and the safety is poor. It is being chased by the lithium iron phosphate battery led by BYD. Lithium iron phosphate has low cost and good safety. Can Ningde era be in a hurry? In the end, the research was overturned, and the sodium ion battery was moved out.
After all, in addition to low energy density, sodium-ion batteries have other advantages. For example, they charge quickly, they will not decay like lithium batteries in low-temperature environments, and they are safe and cost-effective. How did the Ningde era solve his energy density problem? First, the Ningde era has increased the cell energy density of sodium-ion batteries to 160Wh/Kg. Secondly, they have combined sodium and lithium batteries and used BMS to accurately manage their strengths. Complement each other. Once this kind of battery is mass-produced, the cost of electric vehicles will drop sharply immediately, which will inevitably bring a revolutionary change to new energy vehicles.
