1. Lithium battery is a battery with lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution, so this kind of battery is also called lithium metal battery. Different from other batteries, lithium batteries have the characteristics of high charging density, long service life and high unit cost. Depending on the structural design and electrode materials, lithium batteries can generate a voltage of 1.5 V (equivalent to zinc-carbon or alkaline batteries) to 3.7 V. ..
2. Lithium battery is a battery with metal lithium as the negative electrode, also known as lithium metal battery. It is worth noting that lithium batteries are divided into primary batteries and secondary batteries according to different battery configurations. Early lithium batteries were primary batteries. However, due to the very active chemical characteristics of metallic lithium, its processing, storage and use require very high environmental requirements. Therefore, lithium batteries have not been widely used since their invention. With the development of microelectronics technology at the end of the 20th century, there are more and more miniaturized devices, which put forward higher requirements for power supply. The lithium battery then entered a large-scale practical stage. At present, the most common lithium battery structure for consumers is to use metallic lithium as the negative electrode, manganese dioxide as the positive electrode, and lithium salt dissolved in organic solvent as the electrolyte.
3. 1997, Sony and Asahi Kasei introduced lithium polymer batteries. These batteries store electrolytes in solid polymers without using liquid solvents, and electrodes and separators are stacked on top of each other. The difference of this kind of battery is that it can be wrapped with flexible packaging material instead of hard metal shell, which means that this kind of battery can be specially designed according to specific equipment. Because the design of this battery is more flexible and compact, lithium polymer is more popular in the design of portable electronic equipment and radio-controlled aircraft.