Application of a kind of alcuco quasicrystal material
A technology of quasi-crystal and anode materials, which is applied in the application field of AlCuCo quasi-crystal materials, can solve the problems such as difficulty in making quasi-crystal materials, loose structure, low density, etc., so as to improve the performance of lithium-ion batteries, widen the application, excellent Effect of charge and discharge performance
Active Publication Date: 2022-01-18
XIANGTAN UNIV
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Problems solved by technology
It is found that the AlCuCo quasicrystalline material has low density, high brittleness and loose structure, and it is difficult to make a large quasicrystalline material, which limits its practical application
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Embodiment 1
[0027] A method of using AlCuCo quasicrystal material for lithium ion battery negative electrode material, said AlCuCo quasicrystal is composed of Al, Cu and Co, and pure Al, pure Cu and pure Co are weighed according to the alloy composition ratio of 65:20:15 Measure the raw material and put it into the furnace for repeated smelting to obtain Al 65 Cu 20 co 15 A quasicrystalline material, the AlCuCo quasicrystalline material is used as a negative electrode material for a lithium ion battery to prepare an electrode sheet for an ion battery, and the steps are as follows:
[0028] 1) Preparation of AlCuCo quasicrystal powder
[0029] Using pure Al, pure Cu, and pure Co as raw materials, weigh the raw materials of pure Al, pure Cu, and pure Co according to the alloy composition ratio of 65:20:15. Under the high-purity protective gas, the vacuum arc melting method is used to melt the Ti ingot first to remove the oxygen in the container, and then the raw material is smelted three...
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Abstract
The invention discloses an application of an AlCuCo quasicrystal material, which is used as a lithium ion battery cathode material in the lithium ion battery. In the AlCuCo quasicrystal material, according to the mass ratio, its composition is: Al 65wt%, Cu 20wt%, Co15wt%, and the preparation method of the described AlCuCo quasicrystal material is: according to the design proportion, pure Al, pure Cu and Pure Co is then repeatedly smelted in a smelting furnace to obtain an AlCuCo quasicrystal ingot. The AlCuCo quasicrystal ingot is cooled, cleaned, and ground to obtain an AlCuCo quasicrystal material. The application of AlCuCo quasicrystal material as the negative electrode material of lithium ion battery in lithium ion battery shows excellent charge and discharge performance and good cycle characteristics, which proposes the possibility of exploring the application of quasicrystal material in lithium ion battery application of quasicrystalline materials.
Description
technical field [0001] The invention belongs to the field of negative electrode materials of lithium ion batteries, and in particular relates to the application of an AlCuCo quasicrystal material. Background technique [0002] As a new generation of energy storage batteries, lithium-ion batteries are widely used in various electronic devices due to their attractive properties, including high energy efficiency, long cycle life, high energy density, and high power density. These advantages make them smaller and lighter than other traditional rechargeable batteries such as lead-acid, nickel-cadmium and nickel-metal hydride batteries. The performance of lithium-ion batteries is closely related to the positive and negative electrode materials used, and the negative electrode materials play an important role in the overall capacity contribution and cycle life of the battery. The traditional commercial anode material is graphite, which has problems such as low specific energy and ...
Claims
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IPC IPC(8): H01M4/46H01M4/1395H01M10/0525C22C21/12C22C1/02
CPCH01M4/463H01M4/1395H01M10/0525C22C1/026C22C21/12Y02E60/10
Inventor 杨熠王坤许国宝尹冰冰杨奇斌
Owner XIANGTAN UNIV