Positive active material for lithium secondary battery, method for manufacturing the same, and lithium secondary battery including the same

By coating the surface of single-particle lithium nickel cobalt manganese oxide with zirconium compounds, the problems of easy breakage and damage during water washing of high-nickel lithium nickel cobalt manganese oxide were solved, achieving high capacity and long life of lithium secondary batteries.

CN122422993APending Publication Date: 2026-07-17POSCO HLDG INC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
POSCO HLDG INC
Filing Date
2024-12-18
Publication Date
2026-07-17

Smart Images

  • Figure CN122422993A_ABST
    Figure CN122422993A_ABST
Patent Text Reader

Abstract

本发明涉及一种锂二次电池用正极活性物质，其包括单颗粒形态的含镍（Ni）层状（Layered）晶体结构的锂金属氧化物；以及包覆所述锂金属氧化物的全表面且含有锆（Zr）化合物的包覆层，所述锆化合物包括Li2ZrO3和ZrO2，并且所述Li2ZrO3的含量以所述Li2ZrO3和所述ZrO2的总重量为基准是10至53重量%。
Need to check novelty before this filing date? Find Prior Art