Negative electrode active material for non-aqueous electrolyte rechargeable battery, method of fabricating the same, and non-aqueous electrolyte rechargeable battery including the same

摘要

A camera module is disclosed, the camera module including a PCB (Printed Circuit Board), a base arranged at an upper surface of the PCB, a holder member arranged at an upper surface of the base and formed with a plurality of magnet reception portions, a surface of which facing the base is opened, and a plurality of magnets coupled to the magnet reception portions, wherein the base is formed with a protrusion configured to support a bottom surface of the magnet by being protrusively formed at a position corresponding to an opening of the magnet reception portions.

主权项

1. A negative electrode active material for a non-aqueous electrolyte rechargeable battery, wherein when SiOx having a molar ratio of oxygen to silicon (O/Si) of 0.5 to 1.6 is evaluated by x-ray photoelectron spectroscopy (XPS) analysis, at least one XPS peak representing Si—O binding energy exists in the range of 98 to 108 eV, and a ratio of P1 to P2 (P1/P2) is in the range of 2.5 to 20, wherein P1 is defined as the maximum binding energy peak value at 102 to 105 eV and P2 is defined as the maximum binding energy peak value at 98 to 101 eV; and
wherein the SiOx has a structure in which crystalline silicon is dispersed in silicon dioxide, and a crystallite size of the crystalline silicon estimated by a Scherrer equation based on 2-theta of a diffraction peak from a Si (111) plane in an X-ray diffraction analysis is in the range of 1.0 to 15.0 nm, wherein an average particle size (D50) of the SiOx is in the range of 4.0 to 4.5 μm.