ELECTRODE FOR SECONDARY BATTERY, ITS MANUFACTURING METHOD AND SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide an electrode for a secondary battery having high current collecting property, an improved cycle life and high energy density, wherein falling of an active material is prevented, and the current collecting property of the active material is secured even after repeating charging and discharging.

SOLUTION: This electrode 10 is used as a positive electrode or a negative electrode for the secondary battery. The electrode comprises a pair of surfaces 1 of a front face and back face contacting an electrolytic solution and having conductivity. An active substance layer 3 containing particles 2 of the active material is provided between the surfaces. The negative electrode is provided with many fine gaps 5 opened on the surfaces and communicated with the active substance layer.

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