Get more Mail & Guardian
Subscribe or Login

Tesla cuts battery costs on road to cheaper model

Tesla said earlier this week that it is slashing battery costs to speed a global shift to renewable energy, and could have a $25 000 (about R420 000) self-driving model available in three years or so.

Chief executive Elon Musk and the head of Tesla’s power team laid out battery design, material and production innovations that combine to cut the cost per kilowatt hour by 56%.

New approaches to making lithium-ion batteries for vehicles are desperately needed, given the limited supply and high cost, Musk said during a “battery day” presentation.

Tesla shares dropped about 6% in after-market trades, as investors learned the road ahead was not short.

Musk had tweeted that battery day announcements would be “insane”, driving high expectations.

During the presentation, Musk and energy engineering senior vice-president Drew Baglino laid out technical details of Tesla’s overhaul of making batteries, from raw materials and design to building finished cells into the very structures of cars.

Innovations, some still in development, were expected to pack more energy into battery cells, cut production costs and dramatically extend battery life.

They expected it to be several years before transformative battery-making methods were being used at scale in Tesla factories.

“It was not one big thing, but a lot of little enhancements,” iSeeCars executive analyst Karl Brauer said of battery day revelations, explaining that they all add up to batteries that can be made faster and cheaper and provide longer vehicle range

Innovations include using plentiful silicon in batteries in place of more expensive material and designing battery cells themselves into the very structures of vehicles, according to Brauer.

Musk and Baglino were adamant that a shift away from fossil fuels toward sustainable energy is a vital part of tackling climate change.

“It’s really important that we take action,” Baglino said. “We’re going to run out of these fossil fuels, so let’s just move to the future.”

Making lithium-ion batteries cheaper and more abundant is essential to a global shift to renewable power, which is Tesla’s overarching goal, according to Musk.

“We are going to work our darndest to transition the world to sustainable energy as soon as possible,” Musk said.

Along with making electric cars, Tesla has a battery division devoted to power cells for its vehicles, as well as storage packs for electricity at homes, businesses or disaster scenes.

Tesla makes batteries at its plants in the United States and China, and is building a factory in Germany.

Lithium-ion batteries for Tesla models are made by Panasonic at the electric vehicle company’s “giga factory” in Nevada. 

Musk tweeted on Monday that Tesla intends to increase battery purchases from Panasonic, LG and China-based CATL.

“However, even with our cell suppliers going at maximum speed, we still foresee significant shortages in 2022 and beyond unless we also take action ourselves,” Musk said.

Tesla is already ahead of other car makers when it comes to batteries, which are the key to the future of electric vehicles.

The battery event followed an annual shareholders meeting, with attendees sitting in Tesla cars parked in a lot facing an outdoor stage to reduce Covid-19 risk.

Honking greeted Musk as he walked on stage, prompting him to laugh. “We’ve got the Tesla drive-in movie theatre, basically,” Musk quipped. “It’s a little hard to read the room with everybody being in cars.”

Sound was missing from videos streamed at the start of the event, but the glitch was fixed by the time speakers began presenting.

Musk has a pattern of envisioning wondrous innovations, from colonies on Mars to meshing minds with computers and “hyperloop” tunnel systems, with people zipping along underground.

Tesla’s new method of battery making will potentially enable the company to field a $25 000 model in “three years-ish,” according to Musk.

Despite a long-stated goal of making electric cars for the masses, Tesla models currently start at a bit more than $35 000 and quickly leap in price.

“It is absolutely critical that we make cars that people can actually afford,” Musk said. — AFP

Subscribe to the M&G

Thanks for enjoying the Mail & Guardian, we’re proud of our 36 year history, throughout which we have delivered to readers the most important, unbiased stories in South Africa. Good journalism costs, though, and right from our very first edition we’ve relied on reader subscriptions to protect our independence.

Digital subscribers get access to all of our award-winning journalism, including premium features, as well as exclusive events, newsletters, webinars and the cryptic crossword. Click here to find out how to join them.

Glenn Chapman
Glenn Chapman
AFP technology correspondent

Related stories

WELCOME TO YOUR M&G

If you’re reading this, you clearly have great taste

If you haven’t already, you can subscribe to the Mail & Guardian for less than the cost of a cup of coffee a week, and get more great reads.

Already a subscriber? Sign in here

Advertising

Subscribers only

Mbeki tells ANC that land without compensation goes against the...

‘This would be a very serious disincentive to investment,’ says Thabo Mbeki in a document arguing that the ANC should not proceed with the Constitutional amendment of section 25

Micro-hydropower lights up an Eastern Cape village

There is hidden potential for small hydropower plants in South Africa

More top stories

Oxygen supplies in Gauteng remain stable amid third wave

More than 1 500 patients in Gauteng are currently on oxygen assistance

‘Corrupt’ SAA sale to be challenged in court

UDM leader Bantu Holomisa says the organisation is seeking an urgent application to set aside the sale of SAA to Takatso

Mbeki tells ANC that land without compensation goes against the...

‘This would be a very serious disincentive to investment,’ says Thabo Mbeki in a document arguing that the ANC should not proceed with the Constitutional amendment of section 25

Gigaba denies he allowed Gupta allies to strong-arm SAA into...

The former minister was confronted with testimony that the airline was bullied, including by his special adviser, on his watch
Advertising

press releases

Loading latest Press Releases…
×