| abstract |
The present invention provides a nonaqueous electrolyte secondary battery comprising a positive electrode containing sulfur, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer arranged between the positive electrode and the negative electrode, the cation exchange resin layer having a roughness factor of 3 or more the first side of . Also provided is a method for manufacturing a non-aqueous electrolyte secondary battery, the above-mentioned non-aqueous electrolyte secondary battery has a positive electrode containing sulfur, a negative electrode and a cation exchange resin layer, and the above-mentioned cation exchange resin layer is interposed between the positive electrode and the negative electrode and has a roughness In the first aspect with a factor of 3 or more, the manufacturing method of the above-mentioned non-aqueous electrolyte secondary battery includes the following steps: injecting a positive electrode electrolyte containing lithium polysulfide between the positive electrode and the cation exchange resin layer, and injecting the positive electrode electrolyte between the negative electrode and the cation exchange resin layer The concentration of injected lithium polysulfide is lower than that of the negative electrode electrolyte of the positive electrode electrolyte. |