Tesla 4680 battery in big trouble, Nobel laureate cries foul
Tesla is proud of the 4680 battery, mass production has encountered a big problem! Even the Nobel Prize winner has confirmed.
The foreign media Reuters recently interviewed 12 battery experts learned that because of the "dry coating" process in the production of the battery cells can not be put into mass production, Tesla's 4680 cells have been in small production since the production of this year, and thus only a small number of Tesla's models can be equipped with 4680 batteries for delivery.
And because the production volume is so small, the 4680 battery should have played a significant role in reducing the cost of the battery was also discounted.
Tesla 4680 battery in big trouble, Nobel laureate cries out difficult
With a number of new designs such as lugless and silicon-based negative electrodes, the 4680 battery attracted close global attention with a series of strong performance indicators when it was released in 2020. Tesla claims that, when combined with CTC technology, it can increase the range of electric vehicles by 54% and reduce battery costs significantly.
At first glance, this was an explosive technological breakthrough in the electric car world, a star of tomorrow.
But after waiting for nearly 2 years, the Model Y with 4680 battery has been delivered to users in the United States, we found that the range of these models not only did not improve but also decreased, and even now even the mass production problem has not been solved ......
So what problems did the 4680 battery encounter in production? What technical innovations did it use and what improvements could it bring to Tesla? Reuters answers these key questions by speaking with 12 experts who understand Tesla's 4680 battery technology.
Dry coating technology difficult to break through, 4680 battery mass production hindered
In September 2020, Tesla officially unveiled the 4680 battery (cell) at the Battery Day event, which attracted global attention, and went into production this year with the Model Y, which is produced in Tesla's Texas factory in the United States.
One of the keys to mass production of the battery is the dry-coating process. However, experts have revealed that Tesla has encountered many challenges in advancing this process to mass production.
Stan Whittingham, co-inventor of the lithium-ion battery and one of the 2019 Nobel Prize winners, told the foreign press, "I think he (Musk) will eventually solve this problem, but not as fast as he plans, because the process still needs some time to be tested."
OTHER NEWS
-
- GM and Ford apply to deploy steering wheel-less self-driving cars, up to 2,500 per year
- By 21 Jul,2022
-
- Zero Run C01 mid-size pure electric sedan will be listed on September 28: zero hundred acceleration 3.66 seconds, pre-sale from 180,000 yuan
- By 29 Aug,2022
-
- Tesla executives: by cooperating with multiple suppliers, the battery supply is sufficient and stable for the first time
- By 14 Sep,2022
-
- Japan is developing a road surface that can be charged wirelessly for electric vehicles, targeting applications by 2025
- By 20 Sep,2022
-
- Tata Tiago EV to be launched at the end of the month, expected to start at 43,000 yuan
- By 19 Sep,2022
-
- With the energy crisis, it's too hard to get a lot of electric trucks on European freeways
- By 22 Sep,2022