NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium secondary battery which can improve cycle characteristics and is excellent in productivity. SOLUTION: The negative electrode active material has many Si nuclei and an alloy matrix surrounding the surroundings of the...
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| creator | TAKO YUICHIRO FUJITA YUICHIRO KODAMA KENJI SAITO TAKANOBU |
| description | PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium secondary battery which can improve cycle characteristics and is excellent in productivity. SOLUTION: The negative electrode active material has many Si nuclei and an alloy matrix surrounding the surroundings of the Si nuclei. The alloy to constitute the alloy matrix contains an element (x) of one kind or two kinds or more selected from Al, Sn, Ag, Bi, and Zn and an element (y) of one kind or two kinds or more selected from Co, Ni, Ag, Al, Fe, Zr, Cr, Cu, P, V, Mn, Nb, Mo, In, and a rare earth element and different from the above element (x). The alloy to constitute the above alloy matrix preferably contains an element of one kind or two kinds or more selected from Ag, Al, Bi, P, Sn, Ti, and Zn as an element (z) different from the above element (x) and the element (y). COPYRIGHT: (C)2009,JPO&INPIT |
| format | Patent |
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SOLUTION: The negative electrode active material has many Si nuclei and an alloy matrix surrounding the surroundings of the Si nuclei. The alloy to constitute the alloy matrix contains an element (x) of one kind or two kinds or more selected from Al, Sn, Ag, Bi, and Zn and an element (y) of one kind or two kinds or more selected from Co, Ni, Ag, Al, Fe, Zr, Cr, Cu, P, V, Mn, Nb, Mo, In, and a rare earth element and different from the above element (x). The alloy to constitute the above alloy matrix preferably contains an element of one kind or two kinds or more selected from Ag, Al, Bi, P, Sn, Ti, and Zn as an element (z) different from the above element (x) and the element (y). 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| subjects | ALLOYS BASIC ELECTRIC ELEMENTS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY |
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