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Panasonic Energy Partners with Sila

Panasonic Energy Partners with Sila

OSAKA, Japan – Panasonic Energy Co., Ltd., a Panasonic Group Company, announced the signing of an agreement to purchase next-generation nano-composite silicon anode material for EV lithium-ion batteries from Sila Nanotechnologies Inc. (“Sila”; Alameda County, California).

Titan Silicon™, the high-performance silicon material supplied by Sila, outperforms conventional silicon by offering higher capacity as well as suppressing expansion during charging, which has been a longstanding challenge of the material. The use of silicon is key to improving battery performance, as it has in theory 10 times the capacity of graphite, a material commonly used in the current production of lithium-ion battery anodes. However, silicon’s charging-induced expansion, leading degradation of battery performance, has spurred years of industry research to address the issue. Leveraging its battery technology and the partnership with Sila, Panasonic Energy is aiming to replace a higher proportion of graphite in the anode material with silicon, enhancing energy density. This is expected to help deliver improved EV performance, increased vehicle range, and reduced charging times.

For years, Panasonic Energy has been actively developing technology to master the use of silicon materials, successfully mass-producing the industry’s first silicon-based EV batteries. To achieve a 25% increase in battery energy density, from the current level of 800Wh/L to 1,000Wh/L by 2031, it is essential to incorporate next-generation silicon materials in its battery development.

Panasonic Energy will procure the necessary silicon material from Sila’s manufacturing facility in Washington State, U.S. With a strategic focus on North America, Panasonic Energy is working to strengthen local supply chains in order to expand battery production there. The partnership with Sila not only aligns with Panasonic Energy’s commitment to a resilient supply chain, but it will also result in a reduction in the company’s carbon footprint, as well as logistics and transportation costs.

By establishing further partnerships in the region, Panasonic Energy plans to further expand its silicon procurement network. Leveraging advanced battery technology and extensive expertise, the company aims to drive the growth of the lithium-ion battery industry to meet the surging global demand for EVs, thereby helping to achieve a more sustainable society.

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