Back to results
US 7,744,023 B2Granted
Method for preparing black phosphorus or black phosphorus-carbon composite, lithium rechargeable battery comprising the prepared black phosphorus or black phosphorus-carbon composite and method for using the rechargeable battery
AssigneeSeoul National University Industry Foundation
InventorsCheol-Min Park, Hun-Joon Shon
Life of this patent
Estimating the term…
Abstract
Disclosed is black phosphorus or black phosphorus-carbon composite, which is very suitable for an anode material of lithium rechargeable battery. The black phosphorus or black phosphorus-carbon composite is prepared by using high energy ball-milling, which is easy and efficient way in transforming amorphous red phosphorus into orthorhombic black phosphorus at ambient temperature and pressure.
Claims3
A method for preparing black phosphorus comprising:
- providing amorphous red phosphorus among the allotropes of phosphorus;
- and
- high energy ball-milling the red phosphorus so as to transform the red phosphorus into the crystalline black phosphorus.
A method for preparing a black phosphorus-carbon composite comprising:
- mixing amorphous red phosphorus among the allotropes of phosphorus with carbon-based powder;
- and
- high energy ball-milling the mixture so as to transform the mixture into a composite of the crystalline black phosphorus and carbon.
Dependencies are inferred from the claim text.