Negative electrode for lithium secondary battery and lithium secondary battery comprising same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12237496
APP PUB NO 20220209217A1
SERIAL NO

17605057

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Abstract

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The present invention relates a negative electrode for a lithium secondary battery, and a lithium secondary battery comprising same, wherein the negative electrode for a lithium secondary battery comprises a current collector, and a negative electrode active material layer including a first layer formed on the current collector and a second layer formed on the first layer, the first layer containing a first carbon-based negative electrode active material, and the second layer containing a second carbon-based negative electrode active material, wherein the degree of divergence (DD) value of the first layer is 30-90% of the DD value of the negative electrode active material layer, the DD value is defined by formula 1 below.

description='In-line Formulae' end='lead'DD (Degree of Divergence)=(Ia/Itotal)*100  [Formula 1]description='In-line Formulae' end='tail'

    (In formula 1, Ia is the sum of peak intensities of peaks at out-of plane angles as measured by XRD with CuKα, and Itotal is the sum of peak intensities of peaks at all angles as measured by XRD with CuKα).

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Patent Owner(s)

  • SAMSUNG SDI CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eom, Hyeri Yongin-si, KR 27 37
Kim, Hongjeong Yongin-si, KR 10 4
Lee, Jinhyon Yongin-si, KR 48 58
Lee, Sangjun Yongin-si, KR 51 199
Lim, Daeseop Yongin-si, KR 8 10

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