Package

Abstract

The present invention relates to a package with a secondary battery accommodated therein. Even when the secondary battery contains a titanium compound as negative-electrode active material, the package is capable of suppressing rate characteristics from decreasing caused by formation of gas in the secondary battery. The package is characterized by a pre-charged secondary battery accommodated in a packaging container; the secondary battery has a sealed case that encapsulates a positive electrode, nonaqueous electrolyte, negative electrode and separator; the positive electrode contains a layered rock-salt compound as positive electrode active material; the negative electrode contains a titanium compound as negative-electrode active material and faces the positive electrode with the separator disposed in between; the separator is electrically insulative and is impregnated with the nonaqueous electrolyte. The packaging container accommodates a secondary battery, and the charge rate of secondary battery in the packaging container is 30% to 60% of the full charge capacity,

Dependencies are inferred from the claim text.