This　paper　reports　the　microwave-assisted　synthesis　of　Co3O4　nanomaterials　with　different　morphologies　including　nanoparticles,　rod-like　nanoclusters　and　macroporous　platelets.　The　new　macroporous　platelet-like　Co3O4　morphology　was　found　to　be　the　best　suitable　for　reversible　lithium　storage　properties.　It　displayed　superior　cycling　performances　than　nanoparticles　and　rod-like　nanoclusters.　More　interestingly,　excellent　high　rate　capabilities　(811　mAh　g(-1)　at　1780　mA　g(-1)　and　746　mAh　g(-1)　at　4450　mA　g(-1))　were　observed　for　macroporous　Co3O4　platelet.　The　good　electrochemical　performance　could　be　attributed　to　the　unique　macroporous　platelet　structure　of　Co3O4　materials.　(C)　2009　Elsevier　B.V.　All　rights　reserved.