“Charge for 5 minutes and talk for 2 hours” is the slogan of OPPO mobile phones. Fast charging and high battery life have also become one of its unique advantages in the industry.
In the field of electric vehicles, how to improve the cruising range and charging speed of power batteries has also become a problem and challenge faced by many car companies. As we all know, the mainstream lithium-ion batteries on the market have almost reached the ceiling of this technology. Whoever breaks through this bottleneck first will dominate the new energy field in the future.
Let’s not discuss the distribution and use of charging piles for the time being. From the perspective of charging speed, even fast charging of electric vehicles takes more than half an hour. The convenience of energy replenishment is far inferior to that of several electric vehicles. A fuel vehicle that can be refueled in minutes. As the energy density of power batteries increases, their safety is also a worrying issue.
If there is a battery that can be fully charged in 10 minutes and can travel 500 kilometers on a single charge, this will undoubtedly be a breakthrough for the entire industry. Recently, Toyota Motor Corporation stated that the company will demonstrate solid-state battery technology for the first time in 2021, and will also launch a prototype car equipped with solid-state batteries.
Currently, most pure electric vehicles on the market use lithium-ion batteries, which require a liquid electrolyte solution inside. The power battery unit is large and has almost reached a limit. This is also the reason for the current pure electric vehicles. One of the reasons why the cruising range of electric vehicles is only about 600 kilometers at most, and it is difficult to break through.
On the contrary, solid-state batteries are composed of solid electrolytes and have high energy density and are not easily affected by temperature. The risk of high-temperature deflagration is also greatly reduced, and there is no need to worry about safety.
It is understood that under the same conditions, the cruising range of solid-state batteries is twice that of traditional lithium-ion batteries, the charging time is reduced by two-thirds, the weight is lighter, and the service life is longer. In addition, because solid-state batteries are smaller in size and have a lower impact on the vehicle's internal space, they are superior to lithium-ion batteries in all aspects and are expected to become its substitute.
At present, new energy vehicles have entered a stage of rapid development driven by both policies and markets. However, slow charging, short battery life, and safety are exactly the obstacles that prevent pure electric vehicles from taking the fast lane. In particular, the high cost constraints and battery technology bottlenecks, and price have also become a major obstacle to the development of new energy vehicles.
Judging from the current advantages of solid-state batteries, there is a great chance that solid-state batteries will replace lithium-ion batteries as a major trend in the future, but it is not yet easy to draw a conclusion before mass production. But what is certain is that Toyota has already been at the forefront of the industry in the field of solid-state batteries and has more than 1,000 patents, which is quite exciting.
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.