07:37 AM EDT, 06/17/2024 (MT Newswires) -- Apple ( AAPL ) supplier TDK said Monday it has developed a material for solid-state batteries with a 1,000 watt-hours per liter energy density.
The technology can be used in wearable devices like smartwatches and wireless earphones, with an aim of replacing existing coin cell batteries in compliance with EU battery regulations, TDK said.
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