Patent ID: 11862800
Assignee: SK ON CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. The anode active material for a lithium secondary battery of claim 1, wherein the crystallite size of silicon is measured by Equation 1:, L
     =
     
      
       
        0
        .
        9
       
       ⁢
       λ
      
      
       β
       ⁢
       cos
       ⁢
       θ
      
     
    
   
   
    
     [
     
      Equation
      ⁢
          
      1
     
     ]
    
   
  
 

wherein, in Equation 1, L is the crystallite size (nm), λ is an X-ray wavelength (nm), β is a full width at half maximum (rad) from a peak of a (111) plane of silicon, and θ is a diffraction angle (rad).