Synthesis of composite nanofibers for applications in lithium batteries
First Claim
1. A method for fabricating composite nanofibers, comprising steps of:
- forming a plurality of tubular first nanofibers in a plurality nano-scale pores of a template;
placing the template on a current collector;
forming a plurality of second nanofibers on inner surfaces of the first nanofibers; and
removing the template and obtaining a plurality of composite nanofibers.
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Abstract
Methods of fabricating one-dimensional composite nanofiber on a template membrane with porous array by chemical or physical process are disclosed. The whole procedures are established under a base concept of “secondary template”. First of all, tubular first nanofibers are grown up in the pores of the template membrane. Next, by using the hollow first nanofibers as the secondary templates, second nanofibers are produced therein. Finally, the template membrane is removed to obtain composite nanofibers. Showing superior performance in weight energy density, current discharge efficiency and irreversible capacity, the composite nanofibers are applied to extensive scopes like thin-film battery, hydrogen storage, molecular sieving, biosensor and catalyst support except applications in lithium batteries.
56 Citations
28 Claims
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1. A method for fabricating composite nanofibers, comprising steps of:
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forming a plurality of tubular first nanofibers in a plurality nano-scale pores of a template;
placing the template on a current collector;
forming a plurality of second nanofibers on inner surfaces of the first nanofibers; and
removing the template and obtaining a plurality of composite nanofibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A composite nanofiber, comprising:
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a tubular first nanofiber; and
a second nanofiber formed inside the first nanofiber;
wherein the first nanofiber is first formed within a plurality of nano-scale pores of a template placed on a current collector, and then the second nanofiber is formed on inner surface of the first nanofiber, and the template is removed afterwards for obtaining the composite nanofiber. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification