Nominal Voltage
Lead-acid battery single cell nominal voltage: 2.0V
Lithium battery single cell nominal voltage: 3.6V
Internal Materials
Lead-acid batteries: The positive and negative electrodes are made of lead oxide and metallic lead, with the electrolyte being concentrated sulfuric acid.
Lithium batteries: The positive electrode is made of lithium cobalt oxide/lithium iron phosphate/lithium manganese oxide, the negative electrode is made of graphite, and the electrolyte is an organic solution.
Energy Density
Lead-acid battery: 30WH/KG
Lithium battery: 150WH/KG
Application Scenarios
Lead-acid batteries: Used for car starting, electric vehicle batteries
Lithium batteries: Used in smartphones, computers, power tools, and now also in electric vehicle batteries
Electrical Characteristics
Lead-acid batteries cannot discharge at high currents and have a shorter lifespan.
Lithium batteries can discharge at high currents and have a longer lifespan.
