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Autogenic reactions for preparing carbon-encapsulated, nanoparticulate TiO2 electrodes for lithium-ion batteries

✍ Scribed by Vilas G. Pol; Sun-Ho Kang; Jose M. Calderon-Moreno; Christopher S. Johnson; Michael M. Thackeray

Book ID
104026055
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
791 KB
Volume
195
Category
Article
ISSN
0378-7753

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✦ Synopsis

We report an anhydrous, autogenic technique for synthesizing electronically interconnected, carbonencapsulated, nanoparticulate anatase anode materials (TiO 2 -C) for lithium-ion batteries. The TiO 2 -C nanoparticles provide a reversible capacity of ∼200 mAh g -1 , which exceeds the theoretical capacity of the commercially attractive spinel anode, Li 4 Ti 5 O 12 (175 mAh g -1 ) and is competitive with the capacity reported for other TiO 2 products. The processing method is extremely versatile and has implications for preparing, in a single step, a wide variety of electrochemically active compounds that are coated, in situ, with carbon.

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## Abstract The increasing demand for portable energy has generated significant research interest in nanostructured electrode materials, because of their large interfacial contact area with the electrolyte and short path lengths for Li ion transport. To date, titanium dioxide (TiO~2~) has been wide