Technology
Samsung reveals world's first ultra-small solid-state battery for wearable technology
The new feature was announced after three years of research and development by Samsung Electro-Mechanics, which is now entering the testing phase with selected customers. Mass production is expected to begin in 2026, with the new battery debuting in devices like the Galaxy Watch.
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Samsung's new battery has an energy density of 200 Wh/L, significantly higher than that found in current lithium-ion batteries.
This allows the battery to be not only more powerful, but also ultra-compact, meeting the demands of modern wearables, which are increasingly thinner and lighter.
One of the main challenges in creating batteries for wearable devices has always been size. Space limitations make it difficult to develop powerful, long-lasting batteries, but Samsung has managed to overcome this barrier.
One of the biggest advantages of solid-state batteries is their resistance to external shocks. As the solid electrolyte used is non-flammable, there is less risk of explosion or leakage, which significantly improves the safety of the device.
Samsung has applied a production technology that uses multilayer ceramic capacitors. In this process, thin layers of material are alternately printed and stacked, avoiding wrinkling problems that occur with conventional batteries.
Samsung has been making important progress in solid-state battery technology since introducing the technology in 2020. At that time, the company highlighted the potential for higher power densities and greater safety with solid electrolytes.