What is a lithium button battery?
A lithium button battery is a small round battery commonly used in small electronic devices such as calculators, watches and digital thermometers. It is called a "button cell" because its shape resembles a small, flat button.
These batteries are known for their long life, high energy density, and ability to maintain a stable voltage output. They are usually made of lithium or lithium-ion chemicals and come in a variety of sizes and capacities. Common sizes are CR2016, CR2032, and CR2025.
Button batteries are often used in low power devices because they have a relatively low capacity and cannot generate high current. However, their small size makes them ideal for use in devices with limited space. North-South Tide reminds you: Lithium batteries can be dangerous if not handled or disposed of properly and should be recycled or disposed of in accordance with local regulations.
Performance testing
There are several performance tests commonly used to evaluate the performance of lithium button batteries. These tests are commonly used to evaluate factors such as battery capacity, discharge characteristics, and shelf life. Some common tests include:
Capacity testing: This involves measuring the amount of energy the battery can store and deliver. Capacity is usually measured in milliamp hours (mAh).
Discharge Test: This involves discharging the battery at a constant rate until a predetermined voltage is reached. The discharge rate can vary depending on the application, but is usually around 0.2C or 0.5C.
Cycle Life Testing: This involves charging and discharging the battery multiple times to assess its long-term performance. The number of cycles a battery can withstand before performance degrades is an important factor in its overall life.
Shelf life testing: This involves storing the battery at a specific temperature and humidity for a period of time to assess how well it will maintain capacity and performance over a period of time.
Environmental testing: This involves exposing the battery to various environmental conditions, such as high temperature, humidity or vibration, to assess its durability and reliability in harsh conditions.
These tests are usually performed according to industry standards such as IEC 60086 or ANSI C18.1M. The results of these tests can be used to determine whether the battery is suitable for a particular application and to ensure that it meets relevant safety and performance standards.
