With the rapid growth of the global new energy market this year, the "arms race" of major car companies in the direction of electrification has also accelerated sharply. With the entry of many joint ventures and foreign car companies, it is expected that the time to break through the bottleneck of the three power systems and battery technology will be greatly advanced.
from the domestic market, the appearance of BYD's blade battery in may enabled it to successfully use the word "safety", breaking the long-standing monopoly of ternary lithium batteries. For a time, the dispute between Ferrous lithium phosphate and lithium ternary has become the key for car companies to swing in the short term. The unanimous praise of the test results of blade batteries from the outside world has also made BYD, the helm of Ferrous lithium phosphate technology, nearly double its market value.
However, due to the limitations of the traditional power lithium battery in energy density and safety, the future development of the battery has long been recognized in the automotive industry. As the most promising battery type to replace lithium-ion batteries in the next stage, solid-state batteries almost make up for all kinds of market disadvantages exposed by lithium batteries today.
the electrolyte becomes solid, so the solid-state battery can achieve higher energy density. Compared with the theoretical energy density of liquid electrolyte battery of up to 3Wh/kg, the basic theoretical value of the solid-state battery can reach 3-4Wh/kg, thus further improving the battery capacity. Coupled with the higher space utilization rate in the solid state, the solid state battery can effectively reduce the weight of the whole battery pack. At the same time, the solid-state material characteristics of solid-state batteries enable them to be improved in technology, such as flexibility improvement under extremely thin conditions, thus further improving applicability and safety.
and in terms of the industry's increasing concern about improving safety, solid-state batteries also have stronger stability. For example, BYD's short-circuit experiment caused by puncture this year and the side effects caused by high temperature environment can be directly and effectively solved under the all-solid-state battery technology.
Therefore, in order to show their technical reserves and the direction of electrification, traditional car giants including Volkswagen, Nissan and Toyota, as well as battery companies, have extremely clear time node plans. Among them, Volkswagen said that it will produce its own solid-state battery by 225; Nissan is expected to produce a solid-state battery prototype in 228; Bmw is active and Solid? Power's deep cooperation in solid-state batteries is expected to achieve breakthrough progress in solid-state batteries in 226 and then mass production; Hyundai Motor chose to invest in the start-up solid-state battery material enterprise Ionic? Materials to layout, it is expected that mass production of solid-state batteries will be realized in 225.
Toyota Mirai
As one of the earliest car companies that began to promote electrification technology, today's Toyota not only holds mature electric vehicle power forms such as pure electric, plug-in hybrid and HEV, but also has many breakthroughs in the battery. A hydrogen energy vehicle that will be officially mass-produced? Mirai represents Toyota's comprehensive exploration of new energy technology. In the direction of solid-state batteries, as early as 21, Toyota introduced solid-state batteries with a cruising range of more than 1km. Earlier, Toyota Executive Vice President and Chief Technology Officer Shigeki Terajima also revealed that Toyota will launch a new energy vehicle equipped with solid-state battery technology during the 22 Tokyo Olympic Games. However, due to the epidemic this year, the Nikkei News reported a few days ago that Toyota will postpone the official launch of its first solid-state battery prototype until next year.
It is reported that Toyota has more than 1, patents related to this technology in the field of solid-state batteries, accounting for 13% of the global solid-state battery patents. Therefore, Toyota's solid-state battery prototype next year is likely to become the benchmark for the next era of electric vehicles.
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