NON-AQUEOUS ELECTROLYTE STORAGE ELEMENT

摘要

To provide a non-aqueous electrolyte storage element including a positive electrode containing a positive electrode active material capable of inserting and eliminating anions, a negative electrode containing a negative electrode active material capable of inserting and eliminating cations, and a non-aqueous electrolyte prepared by dissolving an electrolyte salt in a non-aqueous solvent, wherein the positive electrode active material contains a carbon material, where a distance between (002) planes, d(002), of the carbon material as measured by X-ray diffraction is 0.340 nm or greater but 0.360 nm or less, and the carbon material has a BET specific surface area of greater than 1 m2/g but smaller than 30 m2/g, and the negative electrode active material contains a material capable of inserting and eliminating lithium ions.

主权项

1. A non-aqueous electrolyte storage element comprising:
a positive electrode containing a positive electrode active material capable of inserting and eliminating anions; a negative electrode containing a negative electrode active material capable of inserting and eliminating cations; and a non-aqueous electrolyte prepared by dissolving an electrolyte salt in a non-aqueous solvent, wherein the positive electrode active material contains a carbon material, where a distance between (002) planes, d(002), of the carbon material as measured by X-ray diffraction is 0.340 nm or greater but 0.360 nm or less, and the carbon material has a BET specific surface area of greater than 1 m2/g but smaller than 30 m2/g, and the negative electrode active material contains a material capable of inserting and eliminating lithium ions.