Finnish startup's battery survives 100°C in second independent test, but bigger questions remain

Finnish startup Donut Lab's solid-state battery passed a 100°C discharge test, but its 400 Wh/kg energy density and 100,000-cycle claims remain unverified.

Yep, it’s fast: Donut Lab’s solid-state battery gets its first test result

Donut Lab’s solid-state battery can charge from 0 to 80 percent in under 5 minutes without an extensive cooling system.

The Humanoid Hub (@TheHumanoidHub) on X

Xpeng will break ground on a 110,000sqm humanoid robot factory in Guangzhou this quarter. The IRON humanoid will feature Xpeng's in-house developed AI chips and solid-state batteries. The company targets the start of deliveries by the end of 2026.

Samsung develops a solid-state silver-carbon battery breakthrough | Newsbase

Samsung’s develops a solid-state silver-carbon battery breakthrough | Newsbase

The Donut Lab Solid-State Battery: They Called It a Scam. Then the Test

TL;DR FAQ: Is Donut Lab's Solid-State Battery a Scam or a Breakthrough? ▼ Q: What did Donut Lab claim at CES 2026, and why did the industry call it a scam? A: At CES in January 2026, Donut Lab a

[6,000-Point Era] Only Samsung SDI Outperforms KOSPI Among Battery Trio

Samsung SDI outperformed South Korea's KOSPI index and its battery rivals, driven by strong ESS prospects, solid-state battery leadership, and plans to sell its Samsung Display stake, fueling investor optimism and a 60.57% YTD share price surge.

I Donut Believe - Presenting Third Party Results

The place where independent analysis of Donut Lab’s solid-state battery claims, with public test data, reports, and technical commentary is released.