Elon Musk’s Plan for Tesla-Built Batteries Faces an Acceleration Challenge


Elon Musk needs to make cheaper batteries quick. However the Tesla chief govt is unlikely to hit formidable targets for Tesla to mass-produce its personal new batteries this 12 months, trade insiders and analysts say. Although Musk is understood for doing the not possible, beginning with turning the electrical automobile maker into the world’s most precious auto firm, the challenges of launching a brand new manufacturing facility and creating a brand new approach of battery manufacturing, are more likely to be an excessive amount of.

The stakes are excessive. Costs of battery elements like nickel hit information this week on provide fears stemming from the Russia-Ukraine battle, and Musk in January forecast battery provide constraints subsequent 12 months, making in-house manufacturing a key to progress.

“He is changing the way how battery manufacturing is done,” mentioned Shirley Meng, a College of Chicago professor who beforehand labored with Maxwell, a battery expertise firm acquired by Tesla. “It’s really, really difficult to manufacture at a speed and at scale.” “I think they will probably fall short of the ramp-up of 4680 over the next year,” mentioned Gene Munster, managing companion at enterprise capital agency Loup Ventures, referring to the next-generation EV battery. Munster sees Tesla beating its targets longer-term, however beginning off slowly, given its historical past of new-model manufacturing.

Musk says making the batteries at scale shall be very troublesome, however they’re vital to his purpose of constructing inexpensive, longer-range electrical automobiles that may preserve Tesla forward of a rising pack of rivals.

Like different automakers, Tesla sources battery cells from suppliers like Panasonic, CATL and LG Energy Solution. In late 2020, Musk introduced that Tesla goals to halve the prices of the most costly a part of an EV by producing its personal batteries.

Tesla’s 4680 lithium-ion batteries – with 46 millimeter diameter and 80 millimeter size — maintain about 5 occasions the vitality of its present smaller 2170 cells. Tesla can use a smaller variety of new cells for the identical vitality and driving vary, lowering prices.

Tesla has mentioned it would begin delivering Model Y automobiles with its larger battery cells by the top of March. In 2020, Musk mentioned Tesla would have capability to supply 100 gigawatt-hours of 4680 batteries this 12 months, sufficient to energy about 1.3 million automobiles, and greater than sufficient to provide manufacturing at factories in Texas and Germany.

Tesla is anticipated to ship about 1.4 million automobiles this 12 months. Business researcher Benchmark Mineral Intelligence expects the corporate to supply batteries for about 30,000 Mannequin Y automobiles, rising to 484,000 in 2024, in response to a beforehand unpublished forecast supplied to Reuters.

Double Challenge

Tesla faces a prolonged course of in ramping up a battery manufacturing facility, difficult by plans to make use of a brand new manufacturing expertise known as dry electrode coating.

“There’s a very long process of fine-tuning the equipment before you can get to volume production,” mentioned Caspar Rawles, chief knowledge officer at Benchmark, including that Tesla must refine the manufacturing course of this 12 months to make sure quantity manufacturing in 2023.

“Battery production is hard, even hard for experienced suppliers,” Rawles mentioned.

Tesla mentioned it produced its one millionth 4680 cell in January. It didn’t say how lengthy it took to hit that milestone, however Benchmark estimated that 1 million cells would energy only one,200 Mannequin Ys, which means that Tesla has an extended approach to go.

Tesla didn’t reply to emailed questions on its battery enterprise. Senior Vice President Drew Baglino mentioned in January Tesla is “making meaningful progress of the ramp curve” in its take a look at battery manufacturing facility in Fremont, California, whereas putting in battery tools at its upcoming plant in Texas.

Baglino mentioned Tesla’s “focus is to drive yield quality and cost to ensure we are ready for larger volumes this year as we ramp and next year.”

As an indication of Tesla’s ambition, it expects to beat established battery makers Panasonic and LG to market with 4680s. The crowning issue for Tesla is that it’s planning a brand new manufacturing course of, known as dry electrode, a expertise it obtained through its 2019 acquisition of California startup Maxwell Applied sciences. The manufacturing facility tools, Musk mentioned, “doesn’t exist. It’s being made.”

Dry electrode manufacturing skips a standard, difficult step of battery manufacturing that entails a chemical slurry. If it really works, it will likely be cheaper and extra environment friendly, however Musk freely admits it will likely be a problem.

“The very difficult part is then scaling up that production and achieving extremely higher reliability and safety with the cells,” he advised a European battery convention in November 2020.

Even so, his timeline is seen as optimistic. It took greater than a decade for battery makers to optimise the standard manufacturing course of for lithium-ion batteries.

Musk, who described a “production hell” of mass producing the Mannequin 3 sedan a number of years in the past – would possibly expertise a “Death Valley” begin to scaling up the dry electrode course of, mentioned professor Meng, including, although, that Tesla will overcome the difficulties.

© Thomson Reuters 2022




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