--- title: Investigating The Science Claims Behind The Donut Solid... description: Donut Lab's claimed solid-state battery promises exceptional specs: 400 Wh/kg energy density, 10-minute charging, 100,000 cycles, and low cost. Technical... canonical: https://daily.dev/posts/investigating-the-science-claims-behind-the-donut-solid-state-battery-tuft3i2jw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Investigating The Science Claims Behind The Donut Solid State Battery | daily.dev og:description: Donut Lab's claimed solid-state battery promises exceptional specs: 400 Wh/kg energy density, 10-minute charging, 100,000 cycles, and low cost. Technical... og:url: https://daily.dev/posts/investigating-the-science-claims-behind-the-donut-solid-state-battery-tuft3i2jw og:image: https://api.daily.dev/og/posts/tUFT3I2Jw.png og:image:alt: Investigating The Science Claims Behind The Donut Solid State Battery og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Investigating The Science Claims Behind The Donut Solid State Battery **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary Donut Lab's claimed solid-state battery promises exceptional specs: 400 Wh/kg energy density, 10-minute charging, 100,000 cycles, and low cost. Technical analysis reveals these claims are scientifically implausible with known battery chemistries. Carbon nanotube supercapacitors and sodium-ion configurations were evaluated but fail to match the stated specifications when accounting for complete battery systems. The company's claims about being non-capacitor-based and lithium-free further eliminate viable chemistry options, raising significant red flags about the product's legitimacy. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [This company claims a battery breakthrough. 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