COLLECTOR, POLE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode and a collector for a battery, wherein a high volume active material is used to be capable of providing a space corresponding to active material layer expansion in lithium occlusion and thereby improving the reliability of a battery; and to provide a method for manufacturing a lithium secondary battery therewith.

SOLUTION: The method for manufacturing the collector comprises the steps of: forming protrusions on metallic foil 24 by a die or roller having minute recesses; and flattening the upper parts of the protrusions by a die or roller having a flat surface. In addition, a pole plate 20 includes an active material layer 21 formed on the collector by a gas phase method. In addition, the lithium secondary battery employs the pole plate 20.

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