noun
a type of battery that uses lithium ions as the primary component for energy storage
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The lithium-ion battery is widely used in electronic devices due to its high energy density.
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My new phone has a lithium-ion battery that lasts all day without needing a recharge.
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I need to grab my portable charger because my lithium-ion battery is about to die.
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Her energy levels were like a lithium-ion battery, always charged and ready to go.