Lithium insertion into CuOrcarbon nanotubes
نویسندگان
چکیده
Carbon nanotubes are coated with a layer of copper by an electroless plating method. To prepare CuOrcarbon nanotubes, Curcarbon nanotubes are oxidized by heating to 1608C in air for 12 h. The lithium insertion properties of carbon and CuOrcarbon nanotubes are tested by an electrochemical method. Carbon nanotubes can reversibly store 700 mA h Li g carbon, while CuO in CuOrcarbon nanotubes can reversibly store 268 mA h Li g CuO. Li can insert into the CuO lattice at 1.7 to ;1.0 V and be released at 2.3 to ;2.5 V vs. Li according to CuOqxeqxLilCuOLi . q 1998 Elsevier Science S.A. All rights reserved. x
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