Germanium-containing lithium-ion devices
First Claim
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1. A lithium ion device comprising:
- an anode having an active material comprising germanium nano-particles having a particle size of 20 to 100 nm, boron carbide nano-particles having a particle size of 20 to 100 nm and tungsten carbide nano-particles having a particle size of 20 to 60 nm,wherein the weight percentage of the germanium is between 5 to 80 weight % of the total weight of the anode, the weight percentage of boron in the anode is between 2 to 20 weight % of the total weight of the anode and the weight percentage of tungsten in the anode is between 5 to 20 weight % of the total weight of the anode;
a cathode; and
an electrolyte.
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Abstract
Lithium ion devices that include an anode, a cathode and an electrolyte are provided. The anode having an active material including germanium nano-particles, boron carbide nano-particles and tungsten carbide nano-particles, wherein the weight percentage of the germanium is between 5 to 80 weight % of the total weight of the anode material, the weight percentage of boron in the anode material is between 2 to 20 weight % of the total weight of the anode material and the weight percentage of tungsten in the anode material is between 5 to 20 weight % of the total weight of the anode materials.
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16 Claims
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1. A lithium ion device comprising:
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an anode having an active material comprising germanium nano-particles having a particle size of 20 to 100 nm, boron carbide nano-particles having a particle size of 20 to 100 nm and tungsten carbide nano-particles having a particle size of 20 to 60 nm, wherein the weight percentage of the germanium is between 5 to 80 weight % of the total weight of the anode, the weight percentage of boron in the anode is between 2 to 20 weight % of the total weight of the anode and the weight percentage of tungsten in the anode is between 5 to 20 weight % of the total weight of the anode; a cathode; and an electrolyte. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification