作者: Chang Wan Koo , Byoung Hoon Ahn , Joon Sung Bae
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摘要: The present invention relates to an anode for a lithium secondary battery, comprising: electrode collector; and multilayer structure including primary active material layer first formed on the collector, second having relatively low density large average particle size. according one embodiment of can improve charging characteristic lifespan battery by improving porosity surface after rolling process two kinds materials different densities sizes so as mobility ions into inside electrode.