Samsung Electro-Mechanics has developed the world’s first ultra-small all-solid-state battery for wearable devices dubbed a “dream battery.”
The all-solid-state battery for wearables developed by Samsung Electro-Mechanics has energy density of 200Wh/L, the highest in the battery industry, according to industry sources on Sept. 22. This means that a one-liter battery can supply 100W of power for one hour. The higher energy density a battery has, the higher capacity the battery can have.
Its prototype is being evaluated by corporate customers at the moment. If it passes tests by the corporate customers, it will be mass-produced at Samsung Electro-Mechanics’ Busan plant beginning from the first half of 2026. It is expected to be first applied to wearable devices such as Samsung Electronics’ Galaxy Ring, Galaxy Watch and Galaxy Buzz.
All-solid-state batteries are safe and resistant to external shocks because electrolyte required for charging and discharging them is a non-flammable solid. They are very flexible too, allowing them to come in various shapes such as flat, polygonal, and curved shapes, making them the next generation of batteries.
Samsung Electro-Mechanics has developed a small oxide-based all-solid-state battery that realizes the same level of energy density in a smaller size compared to lithium-ion batteries by taking advantage of various technological know-how from its multilayer ceramic capacitor (MLCC) business division.
Samsung Electro-Mechanics has been preparing for the commercialization of all-solid-state batteries by securing a number of patents on oxide-based all-solid-state batteries. It has applied for the registration of over 40 patents overseas over the last three years. The patents included those on the composition of solid-state electrolyte which is a core material for all-solid-state batteries and an original battery structure design.
“We will develop a compact all-solid-state battery for wearables by making good use of a firing process and ceramic technology used in MLCC production,” said Samsung Electro-Mechanics President Jang Deok-hyun at CES 2024, the world’s largest consumer electronics and IT show held in Las Vegas of the United States in January.