The difference between Lithium Battery Sodium-ion battery and Solid state battery

Lithium Battery  Sodium-ion battery and Solid state battery

What are the differences between lithium batteries, sodium batteries and solid-state batteries? What are their respective advantages? What are the future development prospects? Today we are going to understand the differences between lithium batteries, sodium batteries, and solid-state batteries.

lithium Battery

 A lithium battery is a solid or liquid battery consisting of a lithium metal or a lithium alloy as a cathode material that uses an organic electrolyte. Due to its advantages of high energy density, high specific capacity, high self-discharge rate and long cycle life, it has been widely used in the field of new energy vehicles.

At present, the mainstream lithium battery used in the field of electric vehicles mainly includes ternary lithium battery, lithium manganese oxide battery, etc. Among them, ternary lithium battery has advantages in energy density and cycle life, and is the most mature and widely used type of power battery. However, due to the high price of its raw materials and the corresponding increase in the cost, its development is limited to a certain extent.

 Sodium-ion battery

 Sodium ion battery is a new type of energy storage technology. Compared with lithium battery, it has lower raw material cost, better safety and higher energy density. The working principle of sodium-ion batteries is similar to that of lithium-ion batteries, but the difference is that the sodium-ion batteries use a more stable cathode material, —— Prussian blue, which is also the most potential positive and negative electrode material.

Prussian blue is mainly used in the field of lithium battery, and sodium ion battery is mainly used in the energy storage field. Its advantages lie in its low cost, high energy density, good safety, long cycle life and other characteristics, which can be applied to portable electronic products, electric bicycles and other fields. However, in practical application, due to the stability of the cathode material of sodium ion battery is not strong, there will be the separation of positive and negative electrode materials, so the multiplier performance and cycle life of sodium ion battery still need to be further improved. At present, sodium ion battery is still in the stage of technology development and test, and has not yet entered the stage of large-scale production stage.

 Solid state battery

 Solid-state battery is a new type of battery. Compared with the traditional lithium battery, it has the advantages of high energy density, high safety, long life and strong adaptability at high and low temperature.

 At present, solid-state battery technology is constantly advancing. With the popularity of new energy vehicles, solid-state battery will also usher in a new round of development opportunities. As a kind of energy storage battery, solid-state battery can improve the energy density of lithium-ion battery, and can prolong the service life of the battery, without causing obvious safety risks. In addition, solid-state batteries can reduce production costs and reduce carbon emissions.

 From the perspective of development prospects, solid-state lithium-ion battery technology is the most likely energy storage technology to achieve large-scale application in the next few years, but there are still facing some challenges in the process of technology development.

 On the one hand, the technical threshold is high; the material cost is high.

According to relevant data, more than 70% of the world's solid state lithium ion battery technology research and development enterprises are carrying out related research and development work. It is believed that with the continuous efforts of researchers, there will be more energy storage technologies in the near future.

 Solid electrolyte

The Solid-state battery refers to the lithium-ion battery using the solid electrolyte, and its core material is the solid electrolyte. Compared with liquid lithium-ion batteries, solid-state batteries have the advantages of high safety, high energy density and high stability. However, because the preparation method of solid electrolyte is not mature, there are still many challenges in its practical application.

At present, solid-state batteries mainly have the following difficulties:

1.The material cost used in the preparation process is relatively high;

2. the preparation process is complex, which requires a special processing of the electrode materials and electrolytes, resulting in a high production cost of batteries;

3. in the practical application, the electrode material is needed to be modified to avoid its reaction with the electrolyte;

4. because the density of solid electrolyte and liquid electrolyte is different, the need to add additional additives in the electrode;

5. the electrode of the solid electrolyte and the electrolyte will react, and there may be some problems of electrochemical performance decline.

Future development prospects: lithium battery, sodium battery, solid-state battery, are all hot technologies in the field of energy storage. Sodium battery is a new type of secondary battery, with the advantages of low price, good safety and rich reserves. In the future, with the development of sodium resources and the development of related technologies, sodium batteries will usher in rapid development.

The solid-state battery is a new type of secondary battery, which can achieve the improvement of charge and discharge cycle performance, and can achieve good results in both safety and energy density. At present, solid-state battery technology is progressing steadily. It is believed that with the continuous progress of technology, it will be more widely used in the future.