| 摘要 |
PROBLEM TO BE SOLVED: To provide an all-solid type secondary battery superior in reliability, which can offer a solution to the corrosion of a negative electrode collector or the like.SOLUTION: An all-solid type secondary battery 1 comprises a negative electrode collector 3 including copper or a copper alloy, and a positive electrode collector 17 opposed to the negative electrode collector 3 and made of aluminum, an aluminum alloy or stainless steel. The all-solid type secondary battery 1 further comprises, between the negative and positive electrode collectors, a negative electrode active material layer 5 formed on a surface of the negative electrode collector 3, a solid electrolytic layer 9 including a sulfide-based solid electrolyte 11 including a monovalent or divalent metal and sulfur, and a positive electrode active material layer 13 formed on a surface of the positive electrode collector 17, which are laminated from the side of the negative electrode collector 3 in turn. As to the solid electrolyte mixed in the negative electrode active material layer 5 formed on the surface of the negative electrode collector 3, an oxide based solid electrolyte or a surface-coated solid electrolyte consisting of the sulfide-based solid electrolyte having its surface coated with a non-corrosive element/compound such as oxide or nitride is used. |
