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A novel nanocomposite architecture of a Fe2O3 - SnO2 - C anode , based on clusters of Fe2O3 and SnO2 nanoparticles dispersed along the conductive chains of Super P Li (TM) carbon black ( Timcal Ltd . ) , is presented as a breathable structure in this paper for lithium - ion batteries .
 Fe2O3, SnO2, C, Fe2O3, SnO2, Li, carbon black, lithium
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Fe2O3, SnO2, C, Fe2O3, SnO2, Li, carbon black, lithium