Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new lithium metal battery that can be charged and discharged at least 6,000 times — more than any other pouch battery cell — and can be recharged in a matter of minutes.
I would love to see more dramatic research into battery tech, but steps like this are also welcome, as these are necessary stepping stones before even better steps.
Worth noting before you get too excited with the possibilities that this is just at lab scale. Being able to manufacture a few grams of a novel design is no guarantee that you can even make it on the scale of tons, much less do so cost competitivly. Even if it is actually possible it will likely take at least a decade before it starts to be available to the public.
I mention all this because battery tech is an area of massive dramatic investment and rapid research for decades now, and a lot of the news coverage tends to talk up the lab stuff and ignore the boring practicalities of what their talking about, which leads to a lot of the public asking why they’ve been hearing breathless news about how new batteries are going to change the world, but never these miraculous new inventions never make it to the public.
The answer of course is that a lot of them run into practical manufacturing problems or are too expensive to be competitive, and the ones that do make it and are coming out today were the subject of breathless news coverage back in two thousand five, which are now competing against the ninties new perfect future batteries.
It’s also worth noting that the practical effects of such new batteries are unlikely to change much. If you need a battery that can output a massive amount of current you use lead acid. If you need a cheap battery that can last for 8000 charge cycles you use lfp, and if you want millions of charge cycles you use the middle 70% of a lfp battery since degradation only happens on the extremes of its range. If you want very small powerful batteries and fast charge times you use lithium ion.
As a result of this, there are few applications where you can’t already do something becuse the battery tech is the limiting factor. Like being able to recharge an EV in five to ten minutes is great, but it’s not going to suddenly allow EVs to do a bunch of things they couldn’t do with our current fifteen to twenty minute charge times, which themselves arn’t that diffeent than the early 2010s thirty to fourty minute charge times. I mean it is a improvement, and it does help with range anxiety while making long trips more comfortable, but it’s not an massive shift that will change the world forever overnight.
Similarly, having a phone that is 20% thinner or lasts an extra hour is an improvement, but it’s not going to suddenly change how we use phones or comilunicate. These are small incremental improvements, like all new technologies are.
The transistor was the largest technological leap of the twentieth century, and it was invented in the forties but only starred to make its way to industry in the fifties and even then it only began to have an impact in the seventies. Technology takes time to scale up and is almost always an small incremental improvement on what came before.
Toyota’s announced they’ll be using solid state batteries in their production EVs before the end of the decade.
Toyota’s been promising that solid state batteries are just around the corner for about 13 years now. They keep bumping the goalposts back every few years.
The first solid state battery was demonstrated in a lab in 1986, the first potentially viable chemistry was demonstrated in a lab in 2011, and Toyota began sinking money into it 2012. They have now spent 13.6 Billion on developing and trying by to scale up solid state batteries over the last twelve years, and are hoping to have a first release in 2027, sixteen years after the initial chemistry was first developed.