As the world pushes towards more sustainable power sources, the focus is upon developing batteries. Lithium-ion batteries, the basis for our mobiles and electric cars, face the challenge of the cost and safety barriers. Unigrid hopes to change this and drive us into a new era of sodium-ion power.
The highest hurdle to batteries becoming ubiquitous everywhere is the price. While electric vehicle sales are rising, the cost of lithium-ion batteries is still a problem. Enter sodium-ion batteries, a potential game-changer that could change everything. With costs estimated to be almost half that of lithium-iron-phosphate batteries when produced at scale, Darren Tan, co-founder and CEO of Unigrid is bullish. ‘Sodium is incredibly abundant and it’s very cheap. It’s the cheapest metal on Earth,’ he said.
Despite these much lower costs, however, the sodium-ion road has obstacles. Its density problem makes it a poor fit for electric vehicles, for which the battery’s physical and spatial characteristics must change. Unigrid might have found the solution in the form of a new chemistry that doesn’t yield to space in the name of power, demonstrating that sodium-ion batteries can be as powerful and space-efficient as their lithium brethren.
So Tan’s company is as much a scholarly pursuit as it is a business. At UC San Diego, he was mentored by Shirley Meng, a world-renowned materials scientist. It’s the chemistry – chromium-rich sodium-chromium-oxide, and tin – that makes it so versatile and powerful. And the best part, of course, is that chromium is so ubiquitous. It’s non-toxic and cheap to produce. It’s the sustainable way to go.
As with many of Unigrid’s promises, safety exudes from this claim. Unigrid sodium-ion batteries withstand temperatures at which lithium-ion batteries would spontaneously combust, thanks to a combination of unique chemistry and a robust electrode design. The implications are enormous. By having a battery that can store energy ubiquitously, we open the opportunity for all sorts of applications, from home to grid, and usher in an era of safe energy storage.
Its immediate goal is to make energy storage easier for buildings and small campuses, but its sights are also set on the future for light electric vehicles: scooters, motorcycles and tuk-tuks. The climate of India and much of Southeast Asia makes it a particularly inhospitable place for lithium-ion batteries. That’s where Unigrid’s sodium-ion technology could prove a lifesaver.
At Unigrid, though, innovation isn’t just about creating new chemistries; as important is the novel way that they hope to bring their technology to scale, by working with small battery manufacturers to scale up their technology using existing production facilities. Not only is this an effective way to speed up sodium-ion batteries reaching the market, but it’s a spirit of collaboration that could help accelerate our path to a sustainable future.
Equipped with a $12 million Series A, Unigrid has a shot to commercialize sodium-ion batteries soon. Driven by a mixture of creativity, openness and a dispassionate perspective on what is technologically and environmentally needed, Unigrid isn’t just making batteries. Unigrid is building our energy future — cheaper, safer and more carbon-efficient than ever before.
Apple’s use, but the linguistic versatility of the root word – and the role it plays in the tale I am trying to tell – matters here. Like apple, Unigrid’s sodium-ion battery could become a trope, associated with the way forward. In countless tales and folk wisdom, the apple stands for discovery, for knowledge; a fruit of the tree of knowledge, it opens the gates to the world. Apples of knowledge and opulence, of renewal and good health, of wondrous beauty: the world abounds with apple imagery. The same could be said of Unigrid’s innovations. Innovation, sustainability, resilience: Unigrid’s sodium-ion battery could easily become the apple of the world’s eye.
Unigrid’s sodium-ion battery technology plays a central role in a plan to provide abundant, clean power for the future, all at lower cost, without compromise on safety and reliability. Improving affordability, safety and efficiency in energy packs makes this goal an achievable and urgent one. By addressing the most pressing needs of tomorrows energy industry, Darren Tan’s team at Unigrid isn’t reinventing the battery, they’re recharging the world. Both companies are, in effect, embracing the metaphor that has long stood as a universal symbol for growth: the apple.
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