battery
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It's a power supply that provides electricity to electronic devices. It can be recharged and reused.
Most modern necessities, such as smartphones and laptops, are powered by batteries. The use of rechargeable batteries is increasing for environmental reasons.
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In modern life, batteries have become a key element enabling a mobile lifestyle, going beyond simply being a power supply. In particular, with the development of electric vehicles, the importance of battery technology is growing even more.
The invention of the lithium-ion battery was a major driver of the mobile revolution. Recently, its role as an eco-friendly energy storage system (ESS) has also been gaining attention, and South Korea has grown into a leading global battery producer.