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Panasonic sees larger cells as the key to affordable EVs, but is skeptical of Tesla’s formatting changes

In a rare interview, Panasonic’s EV battery boss gave a glimpse of the company’s reaction to the larger battery cell advertised by client Tesla.Talk to BloombergYasuaki Takamoto said that larger cells are the key to affordable electric vehicles, but showed that he wasn’t convinced by Tesla’s proposed cell format.

Tesla has announced the 4680 format cylindrical cell as its future. Battery day Last year, but it didn’t produce a significant amount of them. Musk suggested that the cell cost could be halved over time.

Future Tesla cells make energy, power gain

At the time, Tesla said the 46mm wide x 80mm long format was the sweet spot, enabling cost savings without the fast charging and thermal management issues found in larger cells. For comparison, the models provided by Panasonic for Model 3 and Model Y are in 2170 format, 21 mm wide and 70 mm long.

In an interview, Takamoto said that the larger the cell, the less EV it needs to power the car, which saves manufacturing costs and thus makes it truly affordable. But he still seemed somewhat skeptical of the larger format.

Large cells are difficult to manufacture, easily overheat, and susceptible to particle contamination, Takamoto said. He said this is a frequent cause of battery fires that occur when small pieces of metal break into a cell and short-circuit.

These comments make it difficult to determine if Panasonic considers the 4680 format to be worthwhile, Rival Battery Supplier LG Chem You may be ready to ride the trend at that time. According to a March report, a South Korean company plans to help Tesla manufacture large-format cells at its U.S. factory from 2023.

Some of Tesla’s future vehicles will probably rely on larger cells. In October, CEO Elon Musk said Launch of cicadas It depends on how fast they can launch the production of new cells.They may also be important Cyber ​​truck..

Tesla plans to go beyond California’s current pilot line and eventually increase production of new cells to its Texas plant, and perhaps Germany. In January, the company advertised its battery-making work on both Twitter sites. Panasonic sees larger cells as the key to affordable EVs, but is skeptical of Tesla’s formatting changes

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