Which sector does the solid-state battery belong to?

Introduction The sector to which solid-state batteries belong is the strongest sector on Wednesday. From a hot spot perspective, solid-state batteries were the strongest sector on Wednesday, with Jiawei New Energy and Shandong Zhanggu hitting their daily limit, but li

Which sector does the solid-state battery belong to?

This is the strongest sector on Wednesday.

From a hotspot perspective, solid-state batteries were the strongest sector on Wednesday, with Jiawei New Energy and Shandong Zhanggu hitting their daily limit, but this is a product that has been the subject of speculation about both. lithium and sodium batteries. The market is more interested in cross-border solid-state batteries.

“Solid-state batteries” have gradually become a trending concept in the lithium battery industry. The AH shares of Ganfeng Lithium Industry, the leader in lithium batteries, all rose. As of press time, Ganfeng Lithium. Industrial (01772.HK, 002460.SZ)) AH stocks all rose more than 6%.

Electrification has become one of the main directions of the future development of automobiles, and the most important problem in electrification is battery.e. At present, most new energy vehicles use ternary lithium and phosphoric acid batteries. batteries, etc. Regardless of lithium iron batteries, they are all liquid electrolyte lithium batteries. Although this type of battery is not very expensive, it also has many disadvantages.

For example, if a purely electric vehicle has little energy storage or low energy density, if it wants to achieve a higher cruising range, it must increase the battery capacity, which which can only be obtained by carrying more batteries. . At the same time, stability is poor. When the ambient temperature is too high or too low, this liquid lithium battery does not work very well. If the temperature is too low, cruising range will be reduced. high, it will easily catch fire. Additionally, the charging speed is slow. Purely electric vehiclesToday's electric chargers try to reduce charging time as much as possible, but this is achieved through fast charging, whereas true slow charging does not progress over time. That is to say, fast charging is not an improvement in battery charging efficiency, but an improvement in charging equipment efficiency.

In the more than 100 years since the birth of liquid batteries, little progress has been made in these directions. However, battery technology doesn't stop there. But if more suitable materials can be found, the above liquid. Batteries can be avoided. With these drawbacks, the application prospects of this type of battery will necessarily be broader. These are not only electric vehicles, but can also be used in all areas. Therefore, the development of this type of battery. is of great importance. At present, oApart from hydrogen fuel cells, the most important research object in the field of new energy is solid-state batteries.

Solid-state batteries, as their name suggests, are different from liquid batteries in which the electrolyte is in a solid state. However, we don't need to explain the difference between solid-state batteries and liquid batteries. Batteries have come a long way today. You just need to understand. The biggest difference between solid-state batteries and solid-state batteries is that the shape of the electrolyte is different, which means there are huge differences in conductivity, energy storage , of security. stability and other aspects.

The reason why solid-state batteries have become the most important research and development direction is that compared with batterys liquid, solid-state batteries have higher energy density, large energy reserves, faster safety, reliability and stability. Charging efficiency and features such as flexibility and miniaturization can be achieved. In addition, the electrolyte of solid-state batteries is non-flammable, non-corrosive, non-volatile and non-leaking, even at high temperatures it will not catch fire. and is safer. From this point of view, we can say that solid-state batteries have solved all the “problems” of liquid batteries.

In other words, if current pure electric vehicles use liquid lithium batteries, if the battery is replaced with a solid lithium battery of the same volume, the cruising range will be significantly increased (at least more than doubled) the charging speed will be faster, which will be greatly improved compared to today's liquid batteries; and the probability of spontaneous combustion will also be significantly reduced; in this case, users will no longer have so many tangles when using this type of purely electric vehicles.

However, since the performance of solid-state batteries is so excellent, why haven't they been mass-produced? The reason is cost! How much do solid state batteries cost? At present, the cost of all-solid-state batteries for mobile phones is 60,000 yuan, so you can imagine what the cost would be if a car used solid-state batteries. However, with the progress of research and development, solid-state batteries may truly be commercialized in the near future.

This article is the original work of Auto Observer. Any plagiarism will be investigated in accordance with the law.

(Operator: Ling Xiaofeng)

This article comes fromby the author of Autohome Chejiahao and does not represent the views and positions of Autohome.

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