Nyobolt, based in Cambridge, has developed a new 35kWh lithium-ion battery that was charged from 10% to 80% in just over four and a half minutes in its first live demonstration last week. […] Nyobolt’s technology builds on a decade of research led by University of Cambridge battery scientist Clare Grey and Cambridge-educated Shivareddy, the company said. Key to its batteries’ ability to be charged super-fast without a big impact on their longevity is a design that means they generate less heat. It also makes them safer as overheating can cause a lithium-ion battery to catch fire and explode. In addition, the materials used to make the batteries’ anodes allow for a faster transfer of electrons. Nyobolt is currently in talks to sell its batteries to eight electric car manufacturers. At 35 kWh, the battery is much smaller than the 85 kWh in a more typical American electric vehicle (EV). Yet the technology may be used in larger battery packs in the future.
Independent testing of Nyobolt’s batteries by what it called a leading global manufacturer found that they can achieve over 4,000 fast-charge cycles, equivalent to 600,000 miles (965,600 kilometers), while retaining more than 80% of capacity, Nyobolt said in its Friday statement. William Kephart, an e-mobility specialist at consultancy P3 Group and a former engineer, said EV batteries of the kind Nyobolt has developed could “theoretically” be charged as fast as the firm is promising, but the challenge was manufacturing such batteries on an industrial scale. A crucial chemical element in Nyobolt’s batteries is niobium but, as Kephart pointed out, last year only an estimated 83,000 tons (94,500 tons) was mined worldwide. Compare that with graphite, commonly used as anode material in lithium-ion batteries: an estimated 1.6 million tons (1.8 million tons) was produced in 2023. In addition, there are currently “a lot of unknowns” with the niobium battery technology, he told CNN. “The industry will work it out (but) it’s not seen by the industry as a scalable technology just yet,” he added.
Honestly this nails it. Even with my slow to charge PHEV (level 1 charging only for now) I leave full daily.
I just had this discussion in another thread. Slow charging isn’t great but most people don’t drive 50+ miles every single day. I found on Tesla’s site they say a standard household outlet gets you 2-3 miles per hour of range. That’s 30 miles or so in the time most people are home overnight.
A 240v connection apparently charges 10x quicker for people that wanted more assurance, but either way, most of time you’d be leaving topped up or close to it. This seems more of an issue for people living in apartment buildings without access to home charging at all.
I work for a trade company and have access to at cost electrical work, have enough capacity in my panel, and yet we still haven’t felt the need to add wiring for a level 2 charger since it fills from empty in about 8 hours. Pretty much saving the upgrade for when we buy a full EV.