Performance Comparison of Commercially-Available Rechargeable 2032 Batteries

Designed to be lightweight and long-lasting, 2032 coin cell batteries are a common type of battery used for applications ranging from wearable watches to motherboard components. Recent developments in battery technology has allowed rechargeable 2032 variants to enter the market, providing us with more sustainable alternatives to the commonly-used disposable CR2032 model. We report on a performance comparison between four available rechargeable 2032 battery models: LiR2032, LiR2032H, ML2032 and VL2032. The batteries are tested through galvanostatic cycling, under a range of temperature conditions between 0 and 60 ?. Destructive physical analysis was also carried out on each battery model to determine the composition of anode and cathode components using x-ray diffraction. An experimental sodium ion battery in 2032 coin cell configuration is also tested to benchmark its performance against the commercial lithium ion batteries. The viability of these commercial cells for a variety of applications will be discussed.