Negative electrode for rechargeable lithium battery, and rechargeable lithium battery including same
AssigneeSamsung SDI Co., Ltd.
InventorsJinhyon LEE, Bokhyun KA, Kyeuyoon SHEEM, Soonho AHN
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Abstract
A negative electrode for a rechargeable lithium battery includes a negative active material layer on a current collector. The negative active material layer includes a carbon-based negative active material. A Degree of Divergence (DD) value of the negative electrode is greater than or equal to about 19. The DD value may be calculated based on the following equation: DD(Degree of Divergence)=(Ia/Itotal)*100 where Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuKα ray and Itotal is a sum of peak intensities at all angles measured by XRD using a CuKα ray.
Claims20
A negative electrode for a rechargeable lithium battery, comprising
- a current collector;
- and
- a negative active material layer on the current collector and including a carbon-based negative active material, wherein a Degree of Divergence (DD) value of the negative electrode defined by Equation 1 is greater than or equal to about 19:
- DD(Degree of Divergence)=(Ia/Itotal)*100 (1)
- where Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuKα ray and Itotal is a sum of peak intensities at all angles measured by XRD using a CuKα ray.
A negative electrode for a rechargeable lithium battery, comprising
- a current collector;
- and
- a negative active material layer on the current collector,
- wherein a Degree of Divergence (DD) value of the negative electrode is greater than or equal to about 19.
Dependencies are inferred from the claim text.