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One thing is very interesting. According to the slide released by DougCampbell, at room temperature (29 degrees Celsius), the charge of a 2Ah battery drops to about 10% after one hour of discharge. If it is a 22 layer 20Ah battery, the number will be more beautiful at high temperatures. For large car manufacturers, room temperature is a 'red line', and no one is willing to add thermal protection devices to batteries, which will increase costs and make it more complex.
On social media, many experts are surprised by the information released by DougCampbell. Some experts believe that it is surprising that DougCampbell should have released such data, as this approach seems to go against tradition. When other battery companies release press releases, they generally do not discuss defects.
In the future, Solid will strive to improve the performance of batteries at room temperature. Venkat Srinivasan, executive of the Energy Storage Science Cooperation Center at Argonne National Laboratory, pointed out that if Solid cannot do so, its solid-state batteries will not be able to compete for more markets. He said, "If Solid state batteries do not perform well at room temperature, they can only be used in small markets, that is, in markets with higher temperatures
Matt Lacey, a battery expert at ScaniaGroup, a Swedish automaker, believes that: SolidPower has encountered challenges. Although it can produce cells of the right size, it must first provide evidence to prove that its solid-state batteries can meet practical needs, otherwise battery manufacturers will find it difficult to fully support them. Although battery cycle life and safety are important, there is still room for maneuver, and performance at high power and low temperatures is relatively more important
DougCampbell responded in an email that:
Nowadays, large batteries still cannot meet the requirements of the automotive industry. The data we have presented proves that true solid-state batteries can be produced on a large scale, which is exciting. We use a 100% scalable method to produce laboratory batteries, which fully meet or almost meet the requirements of the automotive industry. We have shifted many new technologies to production lines, which is an achievement achieved in 2020. Whether it is battery energy level or discharge The rate, cycle life, laboratory batteries, and production line batteries are the same. Of course, the cycle life needs to be measured, but for now, we are moving in the right direction. “
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