| 摘要 |
PURPOSE: A lithium electrode using a porous 3D current collector, its preparation method and a lithium battery using the electrode are provided, to improve the utilization rate, the cycle lifetime and the charge/discharge efficiency of a battery. CONSTITUTION: The lithium electrode contains a porous 3D current collector and lithium or lithium alloy, and the lithium or the lithium alloy id dispersed into the pore of the 3D current collector. Preferably the current collector is made of the material selected from the group consisting of Ni, Cu, Ti, V, Cr, Mn, Fe, Co, Zn, Mo, W, Ag, Au, Ru, Pt, Ir, Al, Sn, Bi, Si, Sb and their alloys. The lithium alloy is an alloy of the metal selected from the group consisting of Al, Sn, Bi, Si, Sb, B and their alloys, and lithium. Optionally the lithium electrode comprises further metal inside of the pore of the current collector, and preferably the metal is selected from the group consisting of Ni, Cu, Ti, V, Cr, Mn, Fe, Co, Zn, Mo, W, Ag, Au, Ru, Pt, Ir, Al, Sn, Bi, Si, Sb and their alloys.
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