CES is a land of bold announcements of amazing, innovative products and technologies that will revolutionize the world, often set for release in two years' time. Twenty-four months seems to be about the right hype window: close enough to generate excitement and investment, but far enough that everyone forgets about your promises before that deadline [...]

Finnish startup Donut Lab is out to prove that its solid-state battery is all that it claims to be. Last week, the test was about fast charging. This week is where things get hot. Like the first test, this one was also conducted by state-owned VTT Technical Research Centre of Finland. The team set out [...]

When Donut Lab first announced its solid-state battery earlier this year, there was some speculation around whether the Finnish startup had actually produced a supercapacitor, which is a much shorter-term form of electrical storage. Supercapacitors can charge and discharge quickly, similar to Donut Lab's claimed solid-state battery. But supercapacitors are totally different from batteries in [...]