▲Overview
The coin-type lithium manganese dioxide battery (CR battery) is a small, lightweight battery with an operating voltage of 3V and the ability to operate over a wide temperature range. It has a wide range of applications, both for powering devices such as wristwatches and electronic, calculators and can be used in all types of electronic devices mainly as memory and RTC backup.

▲Construction

▲Principle and Reactions
The coin-type lithium manganese dioxide battery uses manganese dioxide (MnO2) as its positive active material, lithium (Li) as its negative active material, and an organic electrolyte solution.

■ Battery reactions
Positive reaction：MnO2+Li++ e– → MnOOLi
Negative reaction： Li → Li+ + e–
Total reaction： MnO2+Li → MnOOLi

▲Notice: Handling/Storage
■ Never expose the battery to ultrasonic sound.
■ Never subject the battery to severe shock.
■ Never short-circuit the battery while installing into equipment.
■ Never store the battery in a hot and highly humid environment.
■ Keep contact pressure more than 2N.



■Warnings — Disposal
The battery may be regulated by national or local regulation. Please follow the instructions of proper regulation.