Title:
正極活物質、その製造方法、それを採用した正極及びリチウム二次電池
Document Type and Number:
Japanese Patent JP6508806
Kind Code:
B2
Abstract:
A cathode active material including at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 3 to about 5 µ m, and the at least one secondary particle comprises at least one selected from the group consisting of a first particle having an average particle diameter in the range from about 5 µm to about 8µm and a second particle having an average particle diameter in the range from about 10 µm to about 20 µm, and wherein a full width at half maximum of a (003) peak is in the range from about 0.120° to about 0.125° in an X-ray diffraction (XRD) spectrum analysis.
Inventors:
Lee Swim
Lee Jun Ritsu
Park
Kim
Cui Yi Kei
Tohru Park
Cui Chung
Lee Jun Ritsu
Park
Kim
Cui Yi Kei
Tohru Park
Cui Chung
Application Number:
JP2014138272A
Publication Date:
May 08, 2019
Filing Date:
July 04, 2014
Export Citation:
Assignee:
SAMSUNG SDI Co., LTD.
International Classes:
H01M4/525; C01G53/00; H01M4/36; H01M4/505
Domestic Patent References:
| JP2005222953A |
Attorney, Agent or Firm:
Nobuyuki Matsunaga
Tetsuji Tsuji
Tetsuji Tsuji