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On December 27, 2023, JAC Yttrium rolled off the assembly line for the production of sodium batteries, and mass delivery will start after New Year's Day in 2024. It is reported that the mass-produced model is equipped with the sodium-ion cylindrical battery cell of Zhongke Hai Na**, and adopts JAC yttrium as the unique honeycomb battery structure, which has the safety characteristics of never spontaneously combustion.
In terms of the research and application of sodium electricity, in February this year, JAC Yttrium debuted the industry's first sodium-ion battery test vehicle, and exhibited its first model yttrium 3 sodium electric version at the Shanghai Auto Show in April.
Compared with lithium-ion batteries, what are the advantages of sodium-ion batteries?
The biggest advantage of sodium-ion batteries is the cost, the cathode material of lithium-ion batteries is 400,000 tons of lithium carbonate, while the top of sodium carbonate is less than 3,000 yuan. Due to the higher conductivity and stronger ion diffusion ability of sodium-ion batteries, the result is better rate performance, and the battery's high power output and continuous output capacity are stronger, and the charging speed will be faster. The low-temperature performance of sodium ions is also better than that of lithium ions, and it will not be greatly affected at minus 20 degrees.
However, sodium has more electronic layers and therefore a larger volume, which makes the mass and volume of sodium-ion batteries almost unfavorable to lithium-ion batteries. At present, the same volume of sodium-ion batteries and lithium-ion batteries on the market, the former has an energy density of about 100-150wh kg, and the latter has an energy density of about 120-180wh kg.
Previously, CATL also released sodium-ion batteries
On the whole, sodium-ion batteries are more suitable for mini cars or compact cars due to their lower cost and low energy density, but they are more conducive to the popularization of electric vehicles and can further explore the development of electric vehicles. So we can also look forward to the price of the JAC yttrium for the sodium battery version of the model.
In addition, the industrialization of sodium batteries is of great significance to the resource security of China's power battery industry. In terms of resource reserves, lithium is not an abundant resource, and the content in the earth's crust is only 00065%, and it is unevenly distributed, 70% of lithium is distributed in South America. The sodium resource is very abundant, its abundance in the earth's crust is in the 6th place, and more importantly, sodium is distributed all over the world, which is completely free from the restrictions of resources and geography, and has a very large resource advantage.
Xia Shunli, chairman of Yttrium Wei Technology, said in a recent interview: "Sodium batteries will become an important variety of power batteries, which is expected to form a complementary industrial pattern with lithium iron phosphate batteries and become a low-cost solution to boost the popularization of popular electric vehicles." ”