The difference between lithium battery and lithium ion battery

The difference between lithium battery and lithium ion battery

Lithium batteries and lithium-ion batteries are popular 2 types of batteries. In the literature and in real life, we found that lithium batteries and lithium-ion batteries are similar in use and sometimes interchangeable. The reason is that lithium batteries and lithium ions Batteries are a pair of concepts that differ from each other and have a relationship of inheritance and development. It is no wonder that people will confuse the two.

The so-called lithium battery is a general term for a battery in which lithium metal is used as a negative electrode active material, and a lithium ion battery refers to a secondary battery in which two different lithium intercalating compounds capable of reversibly intercalating and deintercalating lithium ions are used as a positive electrode and a negative electrode, respectively. The system, lithium battery and lithium ion battery are similar in the positive electrode and electrolyte. Both batteries use metal oxides and sulfides as positive electrodes, and organic solvent-inorganic salt systems as electrolytes.

Lithium battery and lithium ion battery are a process of development. Lithium battery is a kind of substance made of lithium metal or lithium alloy as negative electrode material. The chemical reaction is redox reaction. Later, Sony invented carbon material as negative electrode. In a lithium battery in which a lithium-containing compound is used as a positive electrode, no metal lithium exists in the charge and discharge process, and only lithium ions are used, which is a lithium ion battery.

In the strict sense, the working mechanism of lithium battery and lithium ion battery is different. Lithium battery is a primary battery, also known as lithium primary battery, which can be discharged continuously or intermittently. Some lithium batteries can be used as battery for storage facilities. Such as in the application of hydraulic, wind power, solar power stations. The lithium ion battery is a secondary battery that can be used repeatedly. Nowadays, many people are used to calling "lithium-ion battery" also "lithium battery", which is a convenient name.

From the point of view of use, lithium batteries and lithium ion batteries in a strict sense are also different. Lithium battery uses lithium metal for the negative electrode and MnO2 and SOCl2 for the positive electrode. After it became practical in the 1970s, it was mainly used in some military and civilian small appliances. Lithium-ion batteries are used in a wider range of applications, such as mobile phones, camcorders, cameras, and laptops. The use of large-capacity lithium-ion batteries in electric vehicles has also entered the industrialization process. From the development trend of lithium batteries and lithium ion batteries, the application fields of lithium ion batteries are expanding, and the application fields of lithium primary batteries are shrinking.

Lithium and lithium-ion batteries may be confused in life, but there is a fundamental difference: lithium-ion batteries do not have lithium metal when reacting, only lithium ions move between the positive and negative electrodes, so it is also called "rocking chair". "Battery", customer can name of lithium batteries and lithium-ion batteries, but this does not prevent people from understanding the theoretical differences between this two.

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