Negative electrode active material for lithium secondary battery, and negative electrode and lithium secondary battery including the same
AssigneeLG Energy Solution, Ltd.
InventorsSu-Min Lee, Je-Young Kim, Se-Mi Park, Yong-Ju Lee
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Abstract
A negative electrode active material for a lithium secondary battery which includes: silicon particles; and a coating layer surrounding respective silicon particles, wherein the silicon particles have a full width at half maximum (FWHM) of peak ranging from 2 to 10 in the particle diameter distribution having an average particle diameter (D50) of 1 μm to 30 μm, and the coating layer includes at least one selected from the group consisting of carbon and a polymer. A negative electrode and lithium secondary battery including the negative electrode active material are also disclosed.
Claims8
A negative electrode active material for a lithium secondary battery, comprising:
- silicon particles;
- and
- a coating layer surrounding respective silicon particles,
- wherein the silicon particles have a full width at half maximum (FWHM) of peak ranging from 4 to 8 in a particle diameter distribution having an average particle diameter (D50) of 1 μm to 30 μm, and
- wherein the coating layer comprises at least one selected from the group consisting of carbon and a polymer.
Dependencies are inferred from the claim text.