Negative electrode, method for preparing the same by electrolytic deposition and preparation device thereof
By electrolytic deposition on the current collector, a negative electrode active material layer is formed and a porous structure is formed on the three-dimensional structure current collector, the problem of insufficient stability and life of the negative electrode in the prior art is solved, and efficient secondary battery charging and discharge and dendritic crystal suppression are achieved.
Patent Information
- Application Number
- CN202080083324.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-10-15
- Filing Date
- 2020-10-15
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2040-10-15
AI Technical Summary
The prior art is difficult to provide a negative electrode for secondary batteries with high stability and long life, especially to suppress the generation of branch crystals while meeting the needs of three-dimensional structure current collectors and all-solid batteries.
The negative electrode active material layer containing the base metal is deposited on the current collector by electrolytic deposition method, the current density and deposition time are controlled to adjust the crystallinity and thickness, and a porous structure with a high specific surface area is formed on the three-dimensional structure current collector.
The production of the negative electrode of the secondary battery with high stability and long life is realized, which improves the charge and discharge efficiency and suppresses the generation of branch crystals.