Anode for secondary battery having negative active material with nano-fiber network structure and secondary battery using the same, and fabrication method of negative active material for secondary battery
First Claim
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1. An anode for a secondary battery, comprising:
- an anode collector; and
a negative active material compressed on at least one surface of the collector and being a thin porous metal oxide layer with a tangled web structure of nano-fibers composed of at least one of nano-grains, nano-rods, and nano-particles.
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Abstract
There is provided a metal oxide having a continuous nano-fiber network structure as a negative active material for a secondary battery. A method for fabricating such negative active material for a secondary battery comprises spinning a mixed solution of a metal oxide precursor and a polymer onto a collector to form composite fibers mixed with the metal oxide precursor and the polymer, thermally compressing or thermally pressurizing the composite fibers, and thermally treating the thermally compressed or thermally pressurized composite fibers to remove the polymer from the composite fiber.
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Citations
6 Claims
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1. An anode for a secondary battery, comprising:
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an anode collector; and a negative active material compressed on at least one surface of the collector and being a thin porous metal oxide layer with a tangled web structure of nano-fibers composed of at least one of nano-grains, nano-rods, and nano-particles. - View Dependent Claims (2, 3, 4, 5)
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6. A secondary battery, comprising:
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an anode having an anode collector and a negative active material compressed on at least one surface of the collector; an electrolyte; and a cathode, wherein the negative active material is a thin porous metal oxide layer with a tangled web structure of nano-fibers composed of at least one of nano-grains, nano-rods, and nano-particles.
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Specification