Alkaline battery manufacturers analyze the main differences between alkaline batteries and lithium batteries.

2025-11-19 14:07:04

Alkaline and lithium batteries differ significantly in their chemical systems, energy densities, and application scenarios. Alkaline batteries use a zinc-manganese dioxide system with an alkaline electrolyte, while lithium batteries typically use lithium metal or lithium compounds as the negative electrode, combined with different positive electrode materials (such as lithium cobalt oxide or lithium iron phosphate), and their electrolytes are organic solvents or polymers. In terms of energy density, lithium batteries are far superior to alkaline batteries, making them suitable for high-power devices.

Regarding voltage characteristics, alkaline batteries have a nominal voltage of 1.5V, while lithium batteries are around 3.7V, requiring circuit adjustments to ensure compatibility with traditional devices. In terms of lifespan, lithium batteries are rechargeable and reusable, while alkaline batteries are disposable.

In terms of safety, lithium batteries are sensitive to overcharging and over-discharging and require protection circuits; alkaline batteries are more stable but have a higher risk of leakage. Regarding environmental friendliness, lithium batteries contain heavy metals and require professional recycling, while the zinc and manganese in alkaline batteries are relatively environmentally friendly.