| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and accurate inspection method for an electrode material capable of conducting in a short time. SOLUTION: This inspection method determines whether a mixed composition ratio in the electrode material (a positive mix or a negative mix) of a power storage element is good or not good. The electrode material is filled in an insulating cylinder 1 and pressed at the specified pressure with metal pressing jigs 2 and 3 from an opening of the cylinder 1. An electric resistance value across the pressing jigs 2 and 3 is measured, and if the electric resistance value is within the specified region, the mixed composition ratio is determined to be good. This inspection method does not require a long time for inspection, can be conducted as a part of the manufacturing process of the electrode material can find out a wrong mixed composition ratio soon after a material mixing process to avoid the generation of a large amount of defectives. |
