History of CR2 Batteries #
CR2 batteries are one of the most common types of lithium-ion batteries. They are commonly used in cameras, flashlights, and other small electronic devices. The CR2 battery was first introduced in the early 1990s by the Japanese company Sanyo. The CR2 battery was designed to be a smaller, lighter, and more powerful alternative to other types of lithium-ion batteries.
Typical Chemistry #
CR2 batteries are lithium-ion batteries, meaning that they use a combination of lithium and other elements to store energy. The typical chemistry of a CR2 battery includes a lithium-ion cathode and an anode made of a carbon-based material. The cathode and anode are separated by a separator, which is usually made of a polyethylene or polypropylene material. The lithium-ion cathode is composed of a combination of cobalt, nickel, and manganese.
Typical Use #
CR2 batteries are commonly used in cameras, flashlights, and other small electronic devices. They are also used in medical devices such as pacemakers and defibrillators. CR2 batteries are also used in some hearing aids and watches.
CR2 batteries are designed to be small and lightweight. They typically measure about 25mm in diameter and 15mm in height. The average weight of a CR2 battery is about 12g. The typical capacity of a CR2 battery is about 800mAh, which is enough to power most small electronic devices for several hours. The voltage of a CR2 battery is typically 3V.
CR2 batteries are designed to be rechargeable. They can usually be recharged hundreds of times before they need to be replaced. Most CR2 batteries have built-in safety features such as short circuit protection and overcharge protection to ensure that they are safe to use.