Negative electrode active material for non-lithium secondary battery, method of preparing the same, negative electrode for non-lithium secondary battery including the same, and non-lithium secondary battery including the negative electrode

摘要

A negative electrode active material for a non-lithium secondary battery, the negative electrode active material including a complex including a hard carbon having a specific surface area of about 50 square meters per gram or less and a ratio of a D-band peak intensity to a G-band peak intensity of 1 or less when analyzed by Raman spectroscopy; and a component including at least one selected from a Group 1 element, an oxide of a Group 1 element, a Group 2 element, an oxide of a Group 2 element, an element of Groups 13 to 16, an oxide of an element of Groups 13 to 16, and an oxide of an element of Groups 3 to 12.

主权项

1. A negative electrode active material for a non-lithium secondary battery, the negative electrode active material comprising a complex comprising:
a hard carbon having a specific surface area of about 50 square meters per gram or less and a ratio of a D-band peak intensity to a G-band peak intensity of about 1 or less when analyzed by Raman spectroscopy; and a component comprising at least one selected from a Group 1 element, an oxide of a Group 1 element, a Group 2 element, an oxide of a Group 2 element, an element of Groups 13 to 16, an oxide of an element of Groups 13 to 16, and an oxide of an element of Groups 3 to 12; wherein an average particle diameter of the hard carbon is in a range of about 1 nanometer to about 10 nanometers.