ALL SOLID LITHIUM SECONDARY BATTERY AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an all solid lithium secondary battery having excellent charge and discharge output characteristics by using an electrode active material inexpensive and easy to utilize as a negative active material of the all solid lithium secondary battery, and also to provide the manufacturing method of the all solid lithium secondary battery efficiently manufacturing the battery.

SOLUTION: The secondary battery 1 has a laminate 2 formed by laminating a composite layer 45 formed by integrating a negative electrode 4 and an electrolyte layer 5, and a positive electrode 3. The electrolyte layer 5 is composed of a solid electrolyte layer 51 comprising a lithium ion conductor. The negative electrode 4 is composed of a negative current collector 41 made of a net material and a negative active material layer 42 formed on the negative current collector 41. The negative active material layer 42 is composed of a metal material containing at least one kind selected from the group comprising Sn, Bi and Sb. The positive electrode 3 has a positive current collector 31 made of a net material and an electrode material 32 press-formed to cover the positive current collector 31.

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