The Tesla Model Y achieves 800 km range thanks to Panasonic!

Panasonic promises a new generation of batteries for Tesla Model Y with a remarkable range leap.

Panasonic aims to regain the edge in the global battery battle. According to Reuters, the Japanese group is currently working on a new generation of cells that could offer the Tesla Model Y a record range of over 450 miles in EPA cycle, equivalent to about 725 kilometers. Knowing that compared to the European WLTP standard, EPA estimates are on average 10% lower, the 800 km mark would be easily surpassed. A leap of over 150 km compared to current models, illustrating the ambitions of the Japanese giant to become a key player again against Korean and Chinese competitors.

The presented innovation is based on a radically different approach to traditional lithium-ion battery design. Panasonic has developed a process that does not include an anode during manufacturing. Instead, one would form naturally from lithium metal after the first charge. This gain in space would allow for more active materials to be integrated into the cathode, thereby increasing the overall energy capacity without enlarging the cell.

Promises but still many unknowns

The expected result would be a 25% higher energy density, directly transforming the driving experience. For Tesla, this could translate into a family SUV capable of competing with certain high-end electric sedans in terms of range. However, the interest goes beyond mere performance: a denser battery also provides the possibility of reducing the number of cells onboard, thus decreasing weight and associated costs.

Panasonic plans to market this technology by the end of 2027. No information has been provided regarding the price or the impacts on battery lifespan, two decisive parameters for judging its industrial viability.

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Energy

• 06/10/2025 10:38

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This announcement marks a strategic step for Panasonic. The company, a pioneer alongside Tesla in the 2000s, had seen its Asian rivals steal the spotlight over the decade. If the promise materializes, it could become a major engine of electromobility and offer Tesla a new asset in its quest for efficiency and range.

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