Panasonic Energy will start mass production of 4680 Li-ion batteries at Wakayama factory

Panasonic Energy Co., Ltd., a Panasonic Group Company, announced the completion of preparations for the mass production of 4680 cylindrical automotive lithium-ion batteries. The company’s Wakayama factory in Western Japan has been revamped and will serve as the primary production facility for these new cells. The mass production will commence following the final evaluation.

The 4680 cell represents a new format for cylindrical lithium-ion batteries used in electric vehicles (EVs). It has a capacity five times greater than the 2170 cell, allowing for longer driving ranges and reducing the number of cells needed per battery pack. This results in a more streamlined battery assembly process and lowers the cost of EV production.

Panasonic Energy has developed a mass production method for the 4680 cells, drawing on 30 years of experience in cylindrical lithium-ion battery technology. The Wakayama factory will act as the central hub for producing these batteries and serve as a demonstration site for new products and manufacturing methods. By March 2025, approximately 400 staff will be involved in the development and production of next-generation batteries at the facility.

In line with its goal of environmentally-friendly manufacturing, the Wakayama factory plans to utilize renewable energy sources, such as solar and onshore wind power, aiming for near-zero CO2 emissions in its production processes. Panasonic Energy has already achieved carbon neutrality at its Moriguchi and Kaizuka factories in Osaka and plans to extend this to all 20 of its global facilities by March 2029.

Kazuo Tadanobu, President and Executive Officer, Panasonic Energy, said, “I am excited that we are ready to start the mass production of the cutting-edge 4680 cell. This milestone is the result of years of expertise in cylindrical lithium-ion battery manufacturing. I’m confident it will significantly revolutionize the battery and EV industry. As we add the 4680 cell to our lineup, we’ll cater to a broader range of needs, further promoting the use of EVs and advancing our mission of fostering a sustainable society.”

Also read: Indian Oil and Panasonic Energy to partner for Lithium-ion cell manufacturing in India