Carbon nanotubes -TiO2 (anatase) nanocrystal heterostructures, relation between preparation method, structure, and electrochemical behavior during Li+ insertion. / Different methods of preparation of CNT - TiO2 (anatase) heterostructures have been tested in order to obtain information on the relationship between the preparation method, resulting structure of the material and its electrochemical behavior during Li+ insertion. The most complete TiO2 coverage of individual non-functionalized MWCNT was achieved in block co-polymer (Pluronic P123) templated TiO2 thin films.