| 摘要 |
To realize constituent elements for realizing a nonaqueous secondary battery having high energy density and high repeating stability, and a nonaqueous secondary battery using the same. To present also a lithium ion secondary battery of light weight and high energy density to be used in various electronic appliances and power source of electric vehicle or the like. By using vanadium oxide expressed as M2+xV4O11, where x is 0 or more to 1 or less, and M is a monovalent metal ion such as Cu and Li, as positive electrode, a nonaqueous secondary battery having high energy density and high repeating stability is obtained. Moreover, by using the carbon obtained by heating a cured resin by adding an aromatic compound of 2 to 10 rings to a high polymer before curing, as negative electrode, a nonaqueous secondary battery of high energy density is obtained. By composing an electrochemical element by using a gel or solid ion conductor having an iron containing an organic cationic structure including quaternary nitrogen or its derivative and different cations at least as coexistent ions, a nonaqueous secondary battery of high energy density is obtained. As the current collector of the battery, by using a graphite sheet obtained by baking a high polymer film, a lithium ion secondary battery of light weight, excellent cycle characteristics and high energy density is presented.
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