Tesla ‘roadrunner’ cell leak indicates Battery Day will be more insane than expected


Tesla’s Battery Day is so hypnotized that the event will have to include something truly amazing to live up to its expectations. In the lead-up to the highly anticipated incident, a leaked image featuring a cell has surfaced from Tesla’s “Roadrunner” line. And if the leak proves valid, then it appears that Battery Day will not only meet expectations – it will also be more insane than expected.

Leaked image, which was initially published in a report Electrek, Featured a large-scale battery cell that was a product of the Roadrunner line. The publication stated that the image was sent through an anonymous source and confirmed by another independent source. From the get-go, it is clear that the cell is large-scale, closer to the size of a supercapacitor than a conventional battery cell. Initial comments online by battery enthusiasts also point to some radical improvements that would bring about such cell designs.

whereas ElectrekSources have mentioned that the Roadrunner cell will double the diameter of about 2170 cells that electric car manufacturers currently use in the Model 3 and Model Y, Tesla enthusiasts. @_BRCooper, Familiar with battery technology, noticed that one of the leaked images had the number “054” printed on its edge. If this number represents the diameter of the cell, it would be Tesla’s Roadrunner cells to adopt a 54 × 98 form factor, with a 2170 cell volume of 10x.

Noted by Jordan Gijid Of Limiting factor The channel on YouTube, adopting a 54 × 98 form factor for its next generation of cells, has many implications for the entire battery manufacturing process and performance of Tesla’s vehicles. With larger cells, Tesla can produce battery packs that have fewer cells of magnitude than before. The result will be that the company uses only 1/10 rolls, cans, electrolyte fills, and welds compared to its current operations. Such a strategy opens the doors to massive cost reductions that can help bring down the prices of electric cars to a remarkable degree.

But regardless of its actual size, the Roadrunner Cell’s design appears to be optimized and designed for a cell-to-pack drop-in setup. Interestingly enough, the leaked image of the Roadrunner cell features a tabless electrode design, dubbed by Elon Musk, “it is more important than last year”. Provided that Roadrunner cells are actually inspired by Tesla’s tabless electrode patents, the new form factor could pave the way for greater performance and further reduction in production costs.

Even more remarkable is that these improvements have become possible only with the new form factor and design of the Roadrunner Sale. Giddies, for his part, notes that with the design of the Roadrunner cell and a possible 54 × 98 form factor, Tesla may be able to shut down at 300 watts / kg before making any significant changes to its battery chemistry. Elon Musk actually noted a 30–40% improvement from 250 watt / kg in 2018, which translates to an improvement from 325–350 watt / kg. Musk’s prediction was then imagined by critics as fictitious, but as Battery Day began to organize and leak about the event, it began to look more and more likely that 325–350 watt / kg is possible .

Watch a feature on the Roadrunner battery cell leaks in the video below.