Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING POSITIVE ELECTRODE CONTAINING POSITIVE ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/277316
Kind Code:
A1
Abstract:
Disclosed are a positive electrode active material for a lithium secondary battery, a preparation method therefor, and a lithium secondary battery comprising a positive electrode containing the positive electrode active material, the positive electrode active material comprising a nickel-based active material having a nickel content of at least 60 mol%, wherein the positive electrode active material comprises large crystal particles having a size of 1-10 µm, the large crystal particles comprising a lanthanide element therein.
Inventors:
CHOI SEUNG YEON (KR)
KIM SOO HYEON (KR)
KIM JONG MIN (KR)
YANG WOO YOUNG (KR)
KIM SOO HYEON (KR)
KIM JONG MIN (KR)
YANG WOO YOUNG (KR)
Application Number:
PCT/KR2022/005383
Publication Date:
January 05, 2023
Filing Date:
April 13, 2022
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M4/525; C01G53/00; H01M4/505; H01M10/052
Foreign References:
| KR20200125443A | 2020-11-04 | |||
| KR20200107856A | 2020-09-16 | |||
| US20200062613A1 | 2020-02-27 |
Other References:
YI TING-FENG; HAN XIAO; CHEN BIN; ZHU YAN-RONG; XIE YING: "Porous sphere-like LiNi0.5Mn1.5O4-CeO2composite with high cycling stability as cathode material for lithium-ion battery", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE., CH, vol. 703, 31 January 2017 (2017-01-31), CH , pages 103 - 113, XP029934200, ISSN: 0925-8388, DOI: 10.1016/j.jallcom.2017.01.342
LIU KUN; YANG GAO-LI; DONG YUE; SHI TING; CHEN LI: "Enhanced cycling stability and rate performance of Li[Ni0.5Co0.2Mn0.3]O2by CeO2coating at high cut-off voltage", JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 281, 27 December 2014 (2014-12-27), AMSTERDAM, NL, pages 370 - 377, XP029142619, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2014.12.131
LIU KUN; YANG GAO-LI; DONG YUE; SHI TING; CHEN LI: "Enhanced cycling stability and rate performance of Li[Ni0.5Co0.2Mn0.3]O2by CeO2coating at high cut-off voltage", JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 281, 27 December 2014 (2014-12-27), AMSTERDAM, NL, pages 370 - 377, XP029142619, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2014.12.131
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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