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Tesla's battery day conjectures further warming, from new batteries to power supplies

via:CnBeta     time:2020/9/23 0:08:41     readed:84

As Tesla's September 22(local time) battery day is about to be announced, industry speculation about Tesla is warming up further, and people are looking forward to Elon Musk's performance on this day. CNET's Roadshow channel fully investigated Musk's or battery day puzzles and summed up the ultimate conjecture:


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1. Tesla "biscuit box"

Tesla plans to build its own new battery photos began circulating on the Internet last Wednesday. Simon Mills (Simon Moores), managing director of the Benchmark Mineral of the lithium-ion battery industry price reporting agency, called it a "biscuit box ", which is simply too image, as shown in the photo. Electrek is the first to report the news, and these photos show that the new battery unit is thick and large and can hold more energy density. In the long run, the increase in cell unit energy means that the cell units required for the same specification battery pack will be reduced, which will greatly save costs. These photos also reveal uncharacterized designs to create more efficient production processes.

2. Silicon nanowire anode

What is silicon nanowire anode? Tesla's invitation for battery day, with a peculiar pattern of dots and cluster lines, led experts to speculate that the invitation was Tesla's preview of the technology. This is a potential major breakthrough for batteries, which seems to be the most likely news for the industry so far from battery day. The technology will allow Tesla and its battery partners to produce batteries with higher energy density (meaning longer range) and longer life. Having batteries with higher energy and longer life is the golden key to unlock more affordable electric vehicles.

3. mock potential production

Battery day may be all about batteries, but musk also joked that the company might release big news about car production. According to Elek, musk plans to discuss on battery day how Tesla is going to build cars at the upcoming gigafactory in Berlin. Musk stressed that the Berlin plant would "completely redesign the core technologies of car production.". Battery day will include "something [Tesla] will do in Berlin." It is still known what Tesla has in mind, but musk said during a visit to the site that "this will be the first change in the design of the car's core structure."

4. Roadmap for 400 watt hour battery

Last month, musk tweeted about rumors that Tesla is really interested in electric vehicles. But what roadshow said here is not interesting. In the next three to four years, musk said, 400 watt hours per kilogram of batteries could enter mass production. The CEO has said in the past that this is the threshold for the feasibility of electric vehicles. But leaving aside aircraft, such energy density is not realistic by today's standards. Compared to the density of 260 kg / model. Imagine if you increase the energy density of this model's battery by 50%, you will understand why anything that involves this goal becomes a "big event.".

5. The real arrival of great changes in 2022

Musk tweeted on Monday to remind people not to get too excited about Tuesday's announcement of battery day. Although he claims that this will mean significant changes in semi, roadster and cybertruck, these changes will take years to achieve full production.

6. Million mile battery

In fact, this rumor has been circulating for nearly a year, and if Tesla has really achieved this breakthrough, battery day will surely be the best time to announce it. Ningde times has previously confirmed that its batteries are ready to run 1.24 million miles, and the company happens to be one of Tesla's battery suppliers. But so far, Tesla has not made any official statement about the battery. The company may have tailored other products for its existing and upcoming cars, and perhaps Ningde era components have nothing to do with them. But at least, you know Tesla has worked with researchers in the past to pave the way for the production of millions of miles of batteries.

7. Cobalt free battery

Ningde times not only confirmed that it was ready to produce millions of miles of batteries, but also further confirmed reports that they were working with Tesla to develop cobalt free batteries. It is well known that the political and humanitarian environment surrounding cobalt mining makes the product a highly controversial rare earth material. At the same time, the cost of cobalt material is also very high. Therefore, it is rumored that Tesla and Ningde era are developing a lithium iron phosphate battery for the Chinese market. According to reports, the two companies have been talking about using the latter's "CTP" technology to make up for the lack of cobalt, which will help increase energy density and increase mileage.

8. Musk and Tesla's power utility vision

Tesla has previously been reported to be interested in European power utilities and may reveal its plans on battery day. Earlier this year, Tesla applied for a utility license in the UK, and earlier this week it was given a license to distribute electricity in Western Europe. Not only that, Tesla also sent a survey to existing German car owners to find out what factors would prompt them to change their existing energy suppliers, and further enquire whether owners would choose to buy Powerwall or even allow Tesla to control the charging time of electric vehicles.

All this has to do with Tesla's autobidder project, which is currently in operation at the company's power plant in Australia. Essentially, the project allows Tesla owners to sell energy back to the grid when they don't need it. Industry experts believe that Tesla will not enter the utility sector alone, but will work with partners in many countries to balance the entire grid with batteries.

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