POSITIVE ELECTRODE, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a positive electrode, a method for manufacturing the positive electrode, and a lithium secondary battery comprising the positive electrode, wherein the positive electrode comprises a positive electrode active material layer comprising a positive electrode active mate...

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Bibliographische Detailangaben
Hauptverfasser: KOO, Dae Ryung, CHAE, Jong Hyun, JEON, Seo Young, JOO, Mun Kyu, KWON, Yo Han, LEE, Il Ha
Format: Patent
Sprache:eng ; fre ; kor
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Zusammenfassung:The present invention relates to a positive electrode, a method for manufacturing the positive electrode, and a lithium secondary battery comprising the positive electrode, wherein the positive electrode comprises a positive electrode active material layer comprising a positive electrode active material, and can satisfy expression 1. [Expression 1] 1.2 ≤ I[003]/I[200] ≤ 2.0, wherein, in expression 1, I[003] is an integral value of the maximum peak that appears in the range of 2θ=17.0-19.0° when XRD measurement is performed on the surface of the positive electrode active material layer, and I[200] is an integral value of the maximum peak that appears in the range of 2θ=43-45° when XRD measurement is performed on the surface of the positive electrode active material layer. La présente invention concerne une électrode positive, un procédé de fabrication de l'électrode positive, et une batterie secondaire au lithium comprenant l'électrode positive, l'électrode positive comprenant une couche de matériau actif d'électrode positive comprenant un matériau actif d'électrode positive, et pouvant satisfaire l'expression 1. [Expression 1] 1,2 ≤ I[003]/I[200] ≤ 2,0, où, dans l'expression 1, I[003] est une valeur intégrale du pic maximal qui apparaît dans la plage de 2θ = 17,0-19,0° lorsque la mesure de diffraction des rayons X (XRD) est effectuée sur la surface de la couche de matériau actif d'électrode positive, et I[200] est une valeur intégrale du pic maximal qui apparaît dans la plage de 2θ = 43-45° lorsque la mesure de XRD est effectuée sur la surface de la couche de matériau actif d'électrode positive. 본 발명은 양극, 양극의 제조 방법 및 상기 양극을 포함하는 리튬 이차전지에 관한 것으로, 상기 양극은 양극 활물질을 포함하는 양극 활물질층을 포함하며, 하기 식 1을 만족할 수 있다. [식 1] 1.2 ≤ I[003]/I[200] ≤ 2.0 상기 식 1에서, 상기 I[003]은 상기 양극 활물질층의 표면에 대해 XRD 측정 시, 2θ가 17.0° 내지 19.0°인 영역에서 나타나는 최대 피크의 적분 값이며, 상기 I[200]은 상기 양극 활물질층의 표면에 대해 XRD 측정 시, 2θ가 43° 내지 45°인 영역에서 나타나는 최대 피크의 적분 값이다.