A few days ago, Tesla CEO Elon Musk on Twitter, promising to show "a lot of cool stuff" at the upcoming Battery Day event next week. Obviously, the main event will be the demonstration of new traction batteries of our own design. In anticipation of this event, the first images of the battery cells of the company's new batteries appeared on the Web.
Earlier this year, it became known that Tesla was busy implementing the Roadrunner project, in which the company developed a new battery production system to significantly reduce the cost of producing electric vehicles. However, little is known about Tesla's new batteries. Now, perhaps the first images showing battery cells produced by Tesla have appeared on the Internet. Their Electrec resource, citing an anonymous source of the pictures, and later the authenticity of the photographs was confirmed by another portal source.
Tesla still does not disclose the characteristics of the new cells, but the published images still provide some details. The new cell's diameter is approximately twice that of the Tesla 2170, which is currently used in the Model 3 and Model Y electric vehicles and is manufactured by Panasonic at its Gigafactory in Nevada. Doubling the cell diameter makes its volume four times larger. If the resulting volume is used efficiently, it is possible to obtain a larger capacity while reducing costs due to fewer casings and fewer cells per package.
Earlier this year, Tesla filed for a patent for a new flat electrode battery cell. The new cell design will reduce the internal resistance to the passing current, thereby improving performance.
According to reports, Tesla is currently building a pilot production line to create new cells in Fremont. In addition, in the future, Tesla plans to place a battery production system at its factory, which will be built in Texas.
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Source: 3dnews.ru