Lithium button batteries are mainly made of lithium metal or lithium alloy as the anode and carbon material as the cathode, and an electrolyte solution that enables electrons to flow between the anode and cathode.
Cathode materials used in lithium coin cells can vary. The most commonly used cathode materials for lithium button batteries are lithium cobalt oxide (LiCoO2), lithium manganese oxide (LiMn2O4) and lithium iron phosphate (LiFePO4). Each of these cathode materials has its own unique set of properties that make it suitable for different types of applications.
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Lithium cobalt oxide (LiCoO2) is the most widely used cathode material in lithium button batteries. It has a high energy density and a relatively long cycle life, meaning it can be charged and used many times before losing capacity. However, it is also a bit more expensive than other cathode materials.
Lithium manganese oxide (LiMn2O4) is another common cathode material used in lithium coin cells. It has lower energy density than LiCoO2, but is more stable and less prone to overheating. This makes it ideal for power-hungry devices such as digital cameras and portable CD players. Li-MnO2 Battery is one of the most popular batteries in PKCELL
Lithium iron phosphate (LiFePO4) is a newer cathode material that is gaining popularity in lithium coin cell batteries. It has lower energy density than LiCoO2 and LiMn2O4, but is more stable and safer, with very low risk of overheating or fire. Additionally, it has high thermal and chemical stability, making it suitable for high temperature and high power applications.
The electrolyte used in lithium button batteries can be liquid or solid. The liquid electrolytes used are usually lithium salts in organic solvents, while the solid electrolytes are lithium salts embedded in solid polymers or inorganic materials. Solid electrolytes are generally safer than liquid electrolytes.
Post time: Jan-08-2023