Samsung has achieved a significant breakthrough with the development of its new ultra-small solid-state battery, touted as the world's first. Specially designed for wearables, like earbuds and smartwatches, the battery overcomes major challenges of size and safety, faced by currently used lithium-ion batteries. The idea of a solid-state battery can be dated back to 2020 when Samsung first announced its plans to develop it.

The new battery model boasts an impressive energy density of 200 Wh/L, leaving the traditional lithium-ion batteries far behind in the race. This innovation will give a major boost to the growing wearable market, with a compact and long-life battery.

According to several media reports, the tech giants have successfully created a prototype of this ultra-compact battery. The model is currently being tested by selected customers. Samsung is planning to debut this battery in its Galaxy Watch lineup, with mass production expected to begin in 2026.

Another highlight of this tech innovation is its size flexibility. The South Korean company has created it in sizes ranging from millimetres to centimetres according to the customer's preference.

ultra-small solid-state battery
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"The company leveraged its expertise in multi-layer ceramic capacitor production to alternately print thin layers of material, stacking them without the wrinkling issues that affect lithium-ion batteries. This unique approach enables minimal volume change during charging, eliminating the need for extra space," The Korea Times reported.

Other capabilities of the new battery

Samsung's new battery model offers some more highlights, including its unmatched safety experience. These models feature non-flammable solid electrolytes, adding an extra layer of protection from external shocks. The battery is highly flexible and stretchable, which makes it compatible with ultra-slim wearables.

The thermal stability of Samsung's solid-state battery is also improved, which makes it much safer and more environmentally friendly. The increased life span will also contribute to lower carbon footprints.

The innovation is quite revolutionary in its approach, but high production costs remain a significant challenge.

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