Morphology modification and irreversibility compensation for SnO anodes

SnO powders with different particle sizes have been examined as hosts for L ithium insertion and extraction. The finer powder shows a better cycle perf ormance. The high irreversible capacity of the SnO electrodes in the first cycle can be compensated by adding Li2.6Co0.4N into the electrodes. The mix ed-host electrode demonstrates a reversible capacity over 600 mAh/g and goo d cycling performance. (C) 2001 Elsevier Science B.V. Atl rights reserved.