Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution, while a lead-acid battery is a type of battery of which the electrodes are mainly manufactured. of lead and its oxides, and the electrolyte is a sulfuric acid solution battery.
Lithium battery refers to a battery containing lithium (including lithium metal, lithium alloys, lithium ions and lithium polymers) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, son self-discharge rate and its performance-price ratio are better than those of lithium-ion batteries.
Lead-acid batteries have undergone nearly 150 years of development. Lead-acid batteries have made great progress in theoretical research, product types and varieties, product electrical properties, etc., whether in the field of transportation. have played an indispensable and important role in various economic fields such as communications, electric power, military, navigation and aviation.
When the lead-acid battery reaches peak charge, the charging current is only used to decompose the water contained in the electrolyte. At this time, the positive electrode of the battery produces oxygen and the negative electrode produces oxygen. hydrogen. The gas will overflow from the battery, causing the electrolyte to be reduced and water will need to be added from time to time. On the other hand, at the end of the charge or dan overload conditions, the charge energy is used to break down the water. The oxygen produced by the positive electrode reacts with the sponge-like lead of the negative electrode, leaving part of the negative electrode inside. an underfilled state, inhibiting the production of hydrogen gas at the negative electrode.