Electrode structure for lithium secondary battery and method for manufacturing same
By adopting a multi-layered electrode structure in the lithium secondary battery, and using the polymer electrolyte layer formed by photopolymerization and thermal polymerization, the energy density and stability problems of all-solid lithium secondary battery are solved, and high energy density and stable battery performance are achieved.
Patent Information
- Application Number
- CN202380089405.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-14
- Filing Date
- 2023-08-16
- Publication Date
- 2025-08-01
AI Technical Summary
When the existing all-solid-state lithium secondary batteries lack a separator between the positive electrode and the negative electrode, there is a problem of lowering energy density and lowering of electronic conductivity and ionic conductivity, and there is also a risk of short circuit.
The electrode structure adopting a multi-layer structure includes a first electrolyte layer formed on the first electrode and a second electrolyte layer arranged thereon, respectively formed by photopolymerization and thermal polymerization. The electrolyte layer contains polymer electrolytes of different compositions and thicknesses to ensure stable connection between the electrodes.
It improves the energy density and stability of lithium secondary batteries, reduces interface resistance, prevents short circuits, and enhances ionic conductivity and mechanical stability.