Lithium-Metal Batteries, Are They For Real?

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Many prophets arrive in times of dire trouble promising the earth salvation. Likewise, the battery world has had its share. And with climate change biting hard, the fight is on to find new battery solutions. We have known for a while that a lithium-metal anode could take twice the load of lithium-ion. Now the blue Massachusetts start up, Pellion technologies, announced they finally got lithium-metal batteries right.

Quartz.Com Announces Lithium-Metal Batteries Already Selling

lithium-metal batteries
Lithium-Metal Cell: Paul Albertus ET AL: Nature.Com

Several promises of lithium-metal batteries have come and gone down the years after never progressing beyond laboratories. However, Quartz has heard that Pellion “has already been selling their battery to at least one buyer since February”.

It says the “new innovation” packs twice the energy of conventional lithium-ion. That’s twice the flying range for your drone. And potentially double the storage capacity for the renewable energy we must have. Moreover, and here’s the big one: “its lithium-metal batteries have the potential to power a Tesla car for 500 miles on a single charge, rather than today’s upper limits of 250”.

However, the New Battery Technology Does Have Limitations

lithium-metal batteries
Global Electric Car Sales: Mariordo: CC 4.0

Quartz let slip that Pellion’s lithium-metal battery can only achieve a guaranteed 50 discharging-charging cycles. Therefore, they have a way to go before reaching the lucrative smartphone-electric car market. Because the liquid electrolyte “fundamentally limits” the recycling potential.

The news site knows of ten other companies developing lithium-metal batteries. These include Ion Storage Systems, PolyPlus, Sion Power, and Solid Energy Systems who all claim to be validating them. “Battery start-ups struggle to find customers for their early products,” says Venkat Srinivasan researcher at Argonne National Laboratory.

Commercializing new batteries is a challenge. We think the latest round of prophets are onto something, and we wish them every success in their respective ventures.

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About Author

Electricity has always intrigued me. I have been writing about batteries and energy storage for more than ten years, and have published over 4,000 articles on this website. During that time, I have researched developments across lead-acid, lithium-ion, sodium-ion, flow batteries, and emerging energy-storage technologies. My goal is to explain complex battery concepts in clear, practical language that anyone can understand. My writing career began unexpectedly after leaving the corporate world. What started as a search for a new direction gradually became a fascination with batteries, renewable energy, and the science that powers modern life. Writing may not have made me wealthy, but it has given me the opportunity to explore an industry that continues to evolve in remarkable ways.

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