Composite current collector for zinc-iodine battery, preparation method thereof and zinc-iodine battery
By using a lightweight conductive plastic substrate and a composite current collector formed by magnetron sputtering technology in zinc-iodine batteries, combined with a double-layer membrane structure and a specific concentration of electrolyte, the problems of heavy weight and poor corrosion resistance of pure metal current collectors are solved, thereby improving the energy density and cycle stability of zinc-iodine batteries.
Patent Information
- Application Number
- CN202610997327.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-06
- Publication Date
- 2026-08-28
AI Technical Summary
Existing pure metal current collectors are heavy and have poor corrosion resistance in zinc-iodine batteries, which limits the improvement of battery energy density and results in poor long-cycle stability.
A lightweight conductive plastic substrate is used as a support layer, and a titanium conductive layer is deposited on its surface by magnetron sputtering technology to form a composite current collector, which is combined with a double-layer membrane structure and a zinc sulfate aqueous solution electrolyte of a specific concentration.
This technology achieves lightweighting and improved corrosion resistance of the current collector, extends the cycle life and conductivity stability of the zinc-iodine battery, and improves the battery's energy density and coulombic efficiency.