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Cyclic performance, rate capability, and scheme of Li+ insertion/deinsertion reaction. Cyclic performance and rate capability of TiO2 and CNTs@TiO2 at current densities of 100, 200, 400, and 1,000 mA g-1(a), and schematic illustration of the Li+ insertion/deinsertion reaction in CNT@TiO2 nanohybrids (b).
