-(2)Toyota: Relying on solid-state batteries to

(2)Toyota: Relying on solid-state batteries to "conquer cities and territories"?
author:enerbyte source:本站 click366 Release date: 2023-08-15 09:36:55
abstract:
At present, almost all the power batteries used in any form of electric vehicle are gel batteries. However, restricted by its principle, gelled battery has many obvious shortcomings. For example, safety hazards caused by instability, performance degradation under low temperature conditions, an...

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At present, almost all the power batteries used in any form of electric vehicle are gel batteries. However, restricted by its principle, gelled battery has many obvious shortcomings. For example, safety hazards caused by instability, performance degradation under low temperature conditions, and battery capacity approaching bottlenecks. The global automotive industry is in a period of transformation, and the transition from fuel powered vehicles to electric vehicles cannot be achieved solely through policy guidance. Therefore, under existing conditions, whether battery technology can achieve significant breakthroughs has become the key to electrification transformation.

Traditional lithium batteries have positive and negative electrodes at both ends, with a liquid electrolyte in the middle. The charging and discharging process of the battery is completed by the movement of lithium ions from the positive electrode to the negative electrode, and then to the positive electrode. The presence of liquid electrolytes not only poses a risk of leakage, but also increases the overall volume of the battery and occupies more space. Compared to traditional lithium batteries, solid-state batteries use solid electrodes and electrolytes. In addition to avoiding electrolyte leakage and better volume control, they also have characteristics such as inhibiting lithium dendrites, being less flammable, being less prone to explosion, and not experiencing side reactions at high temperatures. This also means that solid-state batteries can become safer capacitor carriers.

Why is Toyota's solid-state batteries receiving more attention?

According to incomplete statistics, since the rise of the concept of solid-state batteries, more than 50 manufacturing companies, startups, and university research institutes worldwide have been committed to solid-state battery technology. In terms of international invention patents, Japan accounts for more than half of the global market, and Toyota ranks first among a single institution with multiple patents. Because of this, every move about Toyota's solid-state batteries has attracted much attention.

As early as 2004, Toyota began the research and development of all solid-state batteries. Although Toyota successfully incorporated the batteries into the electric vehicle COMS, it did not use its technology for mass production due to the difficulty of mass production.

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