Electrek leaked the real shots of Tesla’s new battery, which is expected to be released on Battery Day, September 22.
According to Electrek, the pictures came from an anonymous user, but an independent source has confirmed to Electrek that this is indeed a battery that came off Tesla’s Roadrunner production line.
Since the source is relatively single, it is difficult to determine the authenticity of the pictures. If the news is true, it means that Tesla has broken the conventional size of cylindrical batteries and developed even larger battery cells, with a diameter twice the size of the 2170 battery cell.
From 18650 to 2170, and then to this chubby battery cell (4270?), the size of the battery cell is getting larger and larger, which significantly improves the volume and capacity of a single battery cell. Fewer battery cells in the pack simplify the BMS calibration work, reduce the difficulty in production and manufacturing, and improve production efficiency.
However, larger battery cells are more difficult to manage heat, so what level of energy density can the new battery cell achieve? Can battery life be improved? All of these questions will be answered on Battery Day, September 22.
Foreign media have given high praise, and there is no doubt that Tesla is leading the development of the battery industry. The only question remains: what level can they push the upper limit to next?
This article is a translation by ChatGPT of a Chinese report from 42HOW. If you have any questions about it, please email bd@42how.com.