This sodium ion battery is based on the technology patented by China (copper-based and coal-based amorphous carbon technology). This loading time, sihao EX 10 Flower Fairy's cruising range is 252km, battery capacity is 25kWh, battery energy density 140Wh/kg, system energy density 120Wh/kg, and fast charging time15 ~ 20min.
The sodium ion battery is on the bus!
Only five days later, on February 28th, Funeng Technology, a well-known domestic lithium manganate battery manufacturer, announced that it had recently received a letter of appointment from Jiangling Group for EV3 sodium battery and would sell sodium ion battery components to the latter. It is expected that mass production and loading will be realized in the second quarter of 2023.
Obtaining the battery designation letter indicates that Funeng Technology's sodium battery products have been recognized by customers, and it has taken a key step from laboratory to market application. It also means that Funeng Technology will take the lead in promoting the application of sodium batteries and become a pioneer in the sodium power industry. Besides jiangling motors, Funeng Technology also cooperates with other passenger car companies to accelerate the loading of sodium ion batteries.
Lithium batteries still have many problems.
Key words: sodium ion battery. 20 14 is the first year of new energy vehicles in China, and it has been eight years since then. In these eight years, the development speed of new energy vehicles in China is obvious to all. Now, the main tone of the development of "power forward, hybrid backward, hydrogen energy auxiliary" has also been firmly fixed.
New energy can be summarized in one sentence: new energy vehicles are not just electric vehicles, but electric vehicles are the representatives of new energy vehicles at present. Electric vehicles have been developed for more than 8 years, but compared with fuel vehicles, there are still many shortcomings. Aside from the fact that the endurance performance is not as good as that of fuel vehicles, there are three main weaknesses at present: one is afraid of cold and heat, the other is low safety factor, and the third is relatively short life.
Of course, there are many kinds of lithium batteries, including lithium cobaltate, lithium titanate, lithium manganate, lithium nickel manganate, ternary lithium manganate, lithium ferrous phosphate, lithium manganese phosphate, etc ... But the lithium batteries actually used in electric vehicles are mainly ternary lithium batteries and lithium iron phosphate batteries. Lithium iron phosphate battery has good safety, and ternary lithium battery has high energy density and large capacity.
In a few years, the price of lithium ore has increased tenfold.
It is imperative to find a substitute.
In addition to these shortcomings, another serious injury of lithium batteries is that lithium carbonate (the most important "lithium source" of lithium-ion batteries) is expensive, the earth's reserves are scarce, and it is concentrated in South America, and the mining process contains some "Zheng Zhi risks". In recent years, the price of lithium carbonate has soared tenfold. Lithium battery manufacturers are scared all day. ...
So can you find a way to invent a substitute for lithium batteries? Rich in raw materials, available everywhere and cheap? At the same time, it would be great if the performance in terms of safety, high and low temperature performance and life span could also be "unexpected"!
In recent years, there are three main substitutes for lithium batteries: aluminum ion batteries, sodium ion batteries and magnesium ion batteries. -The closest to commercial use is the sodium ion battery. -Not afraid of heat and cold, long life, high power, capacity close to lithium ferrous phosphate, low cost battery!
Sodium ion batteries go to the front desk.
Endless raw materials
Sodium ion battery, as its name implies, is a battery that uses sodium ions instead of lithium ions. There are many elements of sodium on the earth. As the saying goes, you are all water, O sea. Good horse, you have four legs! The sea water is full of endless sodium chloride (salt)! And sodium carbonate (commonly known as baking soda, soda ash, caustic soda), the key raw material for producing sodium ion batteries, is cheaper!
To paraphrase a famous saying of Boss Contemporary Amperex Technology Limited: "In the past, the price of cobalt was very fierce, so we tried our best to be cobalt-free. After the nickel was fried, we made it nickel-free. Now the price of lithium is still speculating, so I'll make a sodium. I don't think sodium chloride can be fried because there is more salt. " At present, the price of sodium ion battery is expected to be only about half of that of lithium battery of the same specification.
Not afraid of heat or cold.
Sodium ion batteries can do almost anything.
In terms of life, the cycle life of sodium ion batteries ranges from thousands to tens of thousands, which is better than lithium iron phosphate batteries known as "long life". In terms of safety, sodium ion batteries that will not explode even if punctured are far safer than lithium batteries because of their high chemical inertia.
Moreover, the sodium ion battery is neither afraid of cold nor heat. The actual capacity at minus 20℃ is still above 90% (the domestic public achievement is above 93%), and it is still stable and safe when the temperature rises to 80℃ without any abnormality. This means that cars equipped with sodium ion batteries are no longer afraid of winter in Northeast China! There is no need for a complicated cooling system like a lithium battery.
The capacity performance is slightly weak.
But it seems acceptable.
At present, the only disadvantage of sodium ion battery is energy density, that is, capacity. Roughly at the level of "close to lithium ferrous phosphate" or "slightly lower than lithium ferrous phosphate". For example, a car originally used lithium iron phosphate battery, which can run 500 kilometers, but now it is replaced by sodium ion battery with the same volume and weight, which can only run 400 kilometers. But it seems acceptable. ...
At present, domestic enterprises in the sodium ion battery industry are: Contemporary Ampere Technology Co., Ltd., Zhongke Haina and Funeng Technology. Sea-based new energy 65,438+/kloc-0,000,000 long-life sodium ion battery has also come out, and BYD has officially announced that it has entered sodium ion research and development. In addition, the research and development achievements of polyfluoride, Chuanyi Nadian, Paineng Technology, Kexiang Shares, Xinwangda, Wanrun Xinneng, and Zhongzi Technology ... are all displayed.
This article comes from the author of Che Yihaoda Hu You, and the copyright belongs to the author. Please contact the author in any form. The content only represents the author's point of view and has nothing to do with the car reform.