With the development of microelectronics technology in the twentieth century, more and more miniaturized equipments are required for power supply. Lithium batteries then entered a large-scale practical stage.
The first lithium-ion batteries to be used in pacemakers were lithium-ion batteries. Because the self-discharge rate of lithium subbattery is very low, the discharge voltage is very flat. It makes it possible to implant pacemaker into human body for long-term use.
Lithium-manganese batteries generally have a nominal voltage higher than 3.0 volts. They are more suitable for integrated circuit power supply and are widely used in computers, calculators and watches.
Lithium-ion batteries are widely used in mobile phones, notebook computers, power tools, electric vehicles, street lamp standby power supply, aircraft lights, household appliances, can be said to be the largest application group.