Panasonic, Sila Nano plan silicon batteries with 1000Wh/l

Panasonic, Sila Nano plan silicon batteries with 1000Wh/l

Business news |
By Nick Flaherty

Panasonic Energy has signed a deal to use next generation nano-composite silicon anode material from Sila Nanotechnologies for EV lithium-ion batteries.

Sila Nano is to supply its Titan Silicon material to Panasonic Energy for electric vehicle silicon battery cells.

The use of silicon is key to improving battery performance, as it has in theory 10 times the capacity of the graphite used in the current production of lithium-ion battery anodes which Panasonic makes for Tesla among others.

Panasonic Energy is aiming to replace a higher proportion of graphite in the anode material with silicon, enhancing energy density from the current level of 800Wh/L for 2025 mass production for the Mercedes-Benz electric G-Class to 1,000Wh/L by 2031.

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.

Panasonic Energy will procure the necessary silicon material from Sila’s manufacturing facility in Washington State which has the backing of the US Inflation Reduction Act and says it is working to strengthen local supply chains in order to expand battery production there. This will strengthen the supply chain and reduce the company’s carbon footprint, as well as logistics and transportation costs. 

There are several suppliers of silicon materials for batteries, including Amprius in the US and Nexeon in the UK which is already supplying Panasonic.

Panasonic Energy plans to establish further partnerships in the US and further expand its silicon procurement network.


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