Panasonic to start producing new Tesla batteries in 2023

OSAKA — Panasonic will start mass production of new lithium-ion batteries that increase the range of electric vehicles over 15% as early as 2023, with the first deliveries heading for Tesla.

The new battery is expected to give the vehicles one of the world’s longest ranges per battery weight and will compete with rival South Korean and Chinese battery makers. Given that EVs will be able to travel farther on a single charge, Panasonic expects the shift to EVs will accelerate and is investing heavily in the development of such batteries.

Panasonic began developing the new 4680 battery cells on request from Tesla. Tesla says its current flagship Model S has a range of about 650 km on a single charge. With the new battery, calculations show its range will improve to around 750 km.

CEO Elon Musk says the company wants to make its own batteries to supplement supply and that Tesla will continue to procure batteries from Panasonic or other battery manufacturers. Batteries make up 30% of the total cost of each EV.

The new battery will be twice as big as older versions, with a fivefold increase in capacity. This will allow car manufacturers to cut down on the number of batteries used in each car, which will also reduce the time taken to fit them in the vehicles.

Given its high efficiency, it will cost 10% to 20% less to produce these new batteries, compared with older versions on the basis of capacity.

But Mercedes-Benz plans to start mass production of a new model this year that can travel 1,000 km on a single charge using batteries made by China’s CATL, as the global development race for safer, cheaper, and long-life batteries intensifies.

Panasonic is expanding its plant in Wakayama prefecture and bringing in new equipment to mass produce the new Tesla batteries, with a fresh investment of around 80 billion yen ($704 million). It already has EV battery plants in Japan and U.S. and supplies batteries to EV plants operated by Tesla in California.

The Wakayama factory’s annual production capacity is still under discussion but it is expected to be around 10 gigawatts per year which is equivalent to 150,000 EVs. This is around 20% of Panasonic’s production capacity.

Panasonic plans to partially start operations this year to establish safe, efficient techniques before beginning mass production next year. The company has plans to expand mass production in plants in the U.S. or other countries.

Apart from Tesla and Mercedes, other carmakers and battery makers are also rushing into the sector.

CATL has also announced a series of investment plans, with a total investment amount of close to 2 trillion yen. LG Chem has raised around 1 trillion yen by listing its affiliated company and plans to use the proceeds to invest in the U.S. Toyota Motor plans to invest 2 trillion yen in battery production and development by 2030.

While all-solid-state batteries are lauded as safer next-generation batteries, it is expected to take time before the version becomes commonly used. Panasonic is aiming to make its new lithium-iron battery “the new global standard in EVs” and wants to supply to other carmakers too.

Thanks to demand from Tesla, Panasonic once had a big chunk of the EV battery market. However, CATL and LG Chem in 2019 started supplying batteries to the Tesla plant in China, causing Panasonic to lose market share, which it is now trying to claw back through development of the new battery.












CATLも相次いで投資計画を発表しており、投資額は2兆円に迫る勢いだ。LG Chemは関連会社の上場で約1兆円を調達し、その資金を米国での投資に充てる計画で、トヨタ自動車は2030年までに電池の生産・開発に2兆円を投資する計画だ。


テスラの需要により、パナソニックはかつてEV用電池市場で大きなシェアを占めていた。しかし、2019年にCATLとLG Chemが中国のテスラ工場に電池を供給するようになり、パナソニックは市場シェアを失い、現在は新型電池の開発でそれを取り戻そうとしている。



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