POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME

Title:

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME

Document Type and Number:

WIPO Patent Application WO/2019/098564

Kind Code:

A2

Abstract:

Disclosed are a positive electrode active material for a lithium secondary battery and a method for preparing the same, wherein the lifespan characteristics of the battery can be improved by doping vanadium oxide with magnesium ions. The positive electrode active material for a lithium secondary battery contains a compound of chemical formula 1 below, in which a part of vanadium of the vanadium oxide is doped with magnesium ions. [Chemical formula 1] MgaVbOc, wherein 0.01 ≤ a ≤ 0.05, 1 ≤ b ≤ 6, and 2 ≤ c ≤ 13.

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Inventors:

KIM SUHWAN (KR)
CHAE JONGHYUN (KR)
LIM SUNG CHUL (KR)

Application Number:

PCT/KR2018/012756

Publication Date:

May 23, 2019

Filing Date:

October 25, 2018

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M4/485; C01G31/00; H01M10/052

Attorney, Agent or Firm:

KIM, Sung Ho et al. (KR)

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