The difference between solid-state battery and lithium battery

Will solid-state batteries replace lithium batteries? Not at present, because technology has made great progress, but it has not been industrialized yet. Generally speaking, the research of solid-state batteries is still relatively academic. In terms of industrialization, because some key technologies are related to the core technologies of enterprises, they cannot be obtained, and technologies based on engineering applications still need to be further explored.

Advantages of solid-state batteries

Compared with traditional lithium batteries, all-solid-state batteries have obvious advantages. At the same energy, solid electrolyte is used instead of electrolyte and thin film. All solid-state batteries are thinner and smaller.

Working principle of solid-state battery

The working principle of solid-state batteries is the same as that of traditional lithium batteries. The difference between solid-state lithium batteries lies in the use of solid substances (such as polymers and inorganic materials). ) as an electrolyte to replace the liquid electrolyte used in traditional lithium batteries. Because it uses a solid electrolyte, it is called a solid battery.

Defects of lithium battery

Lithium battery is welcomed by the new energy automobile industry because of its high energy density, low self-discharge rate, high cycle efficiency and long cycle life, and has made great progress. Lithium batteries are not in a perfect state, because the safety performance is poor during use and there is a danger of explosion. At the same time, lithium batteries need protective wires to prevent overcharge or overdischarge.

Advantages of solid-state batteries

From the structural analysis of solid-state batteries and lithium batteries, solid-state batteries are simply batteries using solid electrodes and solid electrolytes. From the point of view of solid electrolyte, it is non-flammable, non-corrosive, non-volatile and non-leaking. At the same time, it also overcomes the lithium dendrite phenomenon and has higher safety.

Development of solid-state batteries

Although solid-state batteries have obvious structural advantages, there is still a long way to go to replace lithium batteries.