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Early development of lithium batteries
- Feb 12, 2019 -

It was first used in pacemakers. The self-discharge rate of the lithium battery is extremely low, and the discharge voltage is gentle. The device that is implanted in the human body can operate for a long time without recharging. Lithium batteries generally have a nominal voltage higher than 3.0 volts, making them more suitable for use as integrated circuit power supplies. Manganese dioxide batteries are widely used in calculators, digital cameras, and watches.

Various materials have been studied in order to develop more excellent varieties. Thereby creating an unprecedented product. For example, lithium sulfur dioxide batteries and lithium thionyl chloride batteries are very characteristic. Their positive active materials are also solvents for the electrolyte. This structure only occurs in electrochemical systems that are not aqueous solutions. Therefore, the research of lithium batteries has also promoted the development of electrochemical theory of non-aqueous systems. In addition to the use of various non-aqueous solvents, research on polymer thin film batteries has also been conducted.

In 1992, Sony successfully developed lithium-ion batteries. Its practicality makes people's mobile phones, notebooks, calculators and other portable electronic devices much smaller in weight and size. The use time is greatly extended. Since the lithium ion battery does not contain heavy metal cadmium, it greatly reduces environmental pollution compared with the nickel cadmium battery.