Lithium battery materials were first used in pacemakers. The extremely low self-discharge rate and stable discharge voltage of lithium batteries allow pacemakers implanted in the human body to operate for a long time without recharging. Lithium batteries generally have a nominal voltage above 3.0 volts, making them more suitable as a power source for integrated circuits. Manganese dioxide batteries are widely used in calculators, digital cameras, and watches.

To develop varieties with superior performance, people have researched various materials, thereby manufacturing products.

In 1992, Sony successfully developed the lithium-ion battery. Its practical use greatly reduced the weight and size of portable electronic devices such as mobile phones, laptops, and calculators.

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