What are the application fields and preparation processes of all-solid lithium secondary batteries?

The preparation of a large-capacity all-solid lithium secondary battery based on a polymer solid electrolyte is close to the winding process of the existing lithium ion battery.

However, considering that the flexibility of the inorganic solid electrolyte membrane is currently poor, the lamination process is more often used in the preparation of the all-solid lithium secondary battery, and it is specifically used to separately prepare the electrolyte and the positive and negative membranes. The double-layer or multi-layer coating is used to prepare the composite layer of the electrolyte and the positive electrode, and the technical route suitable for large-scale production needs further research.

Although the production equipment of all-solid lithium secondary batteries is quite different from the traditional lithium-ion battery cell production equipment, there is no revolutionary innovation from the objective point of view. It is possible that 80% of the equipment can continue the production equipment of lithium-ion batteries. It only has higher requirements in the production environment and needs to be produced in a higher-level drying room. It is sensitive to air with super capacitors, lithium ion capacitors, nickel-cobalt aluminum, pre-lithiation, lithium titanate, etc. For companies with devices or materials, the manufacturing environment is compatible, but the corresponding production environment costs are significantly higher.

The page contains the contents of the machine translation.