| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery securing a liquid-injection passage to a mixture layer 13, improving impregnation properties of a nonaqueous electrolyte into the mixture layer 13 and liquid-retaining properties, and capable of achieving high capacity and improvement in productivity.SOLUTION: There is provided a nonaqueous secondary battery in which a liquid-injection passage to a mixture layer 13 is secured, an impregnation properties of a nonaqueous electrolyte into the mixture layer 13 and liquid-retaining properties are improved, and also battery capacity and productivity can be improved by making the thickness of an end of the mixture layer 13 thinner than that of a part other than the end of the mixture layer 13, and covering a surface of the mixture layer 13 with a surface layer 14 having lower impregnation properties than the mixture layer 13 so that at least a part of the end of the mixture layer 13 is exposed. |
