Lithium battery for inhibiting growth of lithium dendrites by utilizing liquid metal as well as preparation method and application thereof
A liquid metal and liquid battery technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of difficulty in large-scale production, complex methods, and high costs, and achieve scale production, simple coating, and easy The effect of film formation
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[0032] Example 1
[0033] A preparation of a lithium battery using liquid metal to inhibit the growth of lithium dendrites, comprising the following steps:
[0034] (1) Clean the surface of the copper foil (current collector) with absolute ethanol to remove impurities and oil stains.
[0035] (2) Use a small brush to coat the copper foil of step (1) with a thin layer of gallium indium tin zinc liquid metal (melting point 3°C), and the loading amount of the liquid metal is 0.5 mg / cm 2 ,like figure 1 shown.
[0036] (3) The obtained current collector is cut into a disc with a diameter of 1 cm, and then a lithium sheet with a diameter of 1 cm is used as the counter electrode, and an ether-based liquid electrolyte 1MLiTFSIDOL / DME (1:11% LiNO 3 ), assembled into a 2032 type button cell under an argon atmosphere, including a positive electrode case (stainless steel), a negative electrode case (stainless steel), a gasket (stainless steel), a current collector, a lithium sheet, a...
Example Embodiment
[0037] Example 2
[0038] A preparation of a lithium battery using liquid metal to inhibit the growth of lithium dendrites, comprising the following steps:
[0039] (1) Clean the surface of the copper foil (current collector) with absolute ethanol to remove impurities and oil stains.
[0040] (2) Use a small brush to coat a thin layer of gallium indium tin liquid metal (melting point 5°C) on the copper foil of step (1), and the loading amount of the liquid metal is 0.5 mg / cm 2 ,like figure 1 shown.
[0041] (3) The obtained current collector is cut into a disc with a diameter of 1 cm, and then a lithium sheet with a diameter of 1 cm is used as the counter electrode, and an ether-based liquid electrolyte 1MLiTFSIDOL / DME (1:11% LiNO 3 ), the current collector of this example was assembled into the 2032 type button cell shown in Example 1 under an argon atmosphere.
Example Embodiment
[0042] Example 3
[0043] A preparation of a lithium battery using liquid metal to inhibit the growth of lithium dendrites, comprising the following steps:
[0044] (1) Clean the surface of the copper foil (current collector) with absolute ethanol to remove impurities and oil stains.
[0045] (2) Use a small brush to coat a thin layer of gallium-zinc liquid metal (melting point 25°C) on the copper foil of step (1), and the loading amount of the liquid metal is 0.5 mg / cm 2 ,like figure 1 shown.
[0046] (3) The obtained current collector is cut into a disc with a diameter of 1 cm, and then a lithium sheet with a diameter of 1 cm is used as the counter electrode, and an ether-based liquid electrolyte 1MLiTFSIDOL / DME (1:11% LiNO 3 ), the current collector of this example was assembled into the 2032 type button cell shown in Example 1 under an argon atmosphere.
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