1: Different nominal voltages
Nominal voltage of lead-acid battery monomer: 2.0V
Nominal voltage of lithium battery monomer: 3.6V
2: Different internal materials
Lead-acid battery positive and negative electrodes are lead oxide, metallic lead, and the electrolyte is concentrated sulfuric acid
Lithium battery positive and negative electrodes are lithium cobalt oxide/lithium iron phosphate/lithium manganese oxide, graphite, organic electrolyte
3: Different energy
Lead-acid battery 30WH/KG
Lithium battery 150WH/KG
4: Different use occasions
Lead-acid battery: car starter, electric vehicle battery
Lithium battery: mobile phone, computer, power tool, and now also used in electric vehicle battery
5: Different electrical characteristics
Lead-acid battery cannot discharge with large current and has a short life
Lithium battery can discharge with large current and has a good life