-Is the so-called

Is the so-called "solid-state battery revolution" hyped or taken seriously?
author:enerbyte source:本站 click378 Release date: 2023-08-07 10:44:56
abstract:
Car batteries have a history of 140 years, and during this long period of time, researchers have always liked to "keep it confidential". Due to the requirements of the government or private investors, researchers sometimes disclose some insider information, but under default rules, w...

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Car batteries have a history of 140 years, and during this long period of time, researchers have always liked to "keep it confidential". Due to the requirements of the government or private investors, researchers sometimes disclose some insider information, but under default rules, what they say is often only half the truth, and sometimes even less than half. Why? From a physical perspective, batteries are difficult to study and it's not easy to win. Generally speaking, you don't have much to talk about. If you really have something to talk about, you will be very rigorous and careful.

Recently, some important figures in the battery industry have come out loud, hoping that the battery industry can be more transparent. It is not a requirement for the industry to be fully open, but rather a hope for everyone to share more data and provide convenience for battery researchers.

According to news reports, many companies seem to have broken through important barriers to manufacturing super batteries before. If they can solve the remaining problems, such as chemistry and manufacturing, the cost of electric vehicles will significantly decrease to the same level as gasoline cars, which is a milestone. If they can do so, the price of electric vehicles can be at the same level as gasoline cars. All companies say their goal is to apply their developed solid-state batteries to commercial electric vehicles by around 2025.

In the field of solid-state batteries, Solid and Quantum Scape have become pioneers. QuantumScape's next goal is to achieve multi-layer batteries, while Solid is producing 330Wh/kg, 20Ah, multi-layer all solid-state batteries. The energy density of QuantumScape solid-state batteries reaches 350Wh/kg, which is higher than Solid and performs well at -30 degrees Celsius; Solid state batteries perform well at -10 degrees Celsius, but their performance at lower temperatures is unknown. Looking at the charging speed, Solid batteries can recover 50% of their battery capacity after 15 minutes of charging at room temperature, while Quantum Scape can recover 80% after 15 minutes of charging. For both companies, how to produce on a large scale is even more important.

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