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Title:
HIGH-VOLTAGE NICKEL-MANGANESE MATERIAL HAVING HIGH SINGLE CRYSTAL DISPERSITY, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/169151
Kind Code:
A1
Abstract:
Disclosed in the present application is a high-voltage nickel-manganese material having high single crystal dispersity. The molecular formula of the nickel-manganese material is: LiαNiβMn2-βMγO4-δ, wherein 0.95≤α≤1.1, 0.4≤β≤0.6, 0.0005≤γ≤0.02, 0≤δ≤0.2, M is a single crystal dispersion element, and M is at least one of V, Nb, Ta, Mo or W. The high-voltage nickel-manganese material having high single crystal dispersity in the present application is prepared by means of adding a small amount of a single crystal dispersion element (V, Nb, Ta, Mo or W), so that the high-voltage nickel-manganese material having good single crystal dispersity has a smaller specific surface area, the BET being 0.3-0.5 m2/g.

Inventors:
CHEN YU (CN)
HUANG TAO (CN)
WU BIN (CN)
SANG CHUNYUAN (CN)
YAN XUFENG (CN)
LIU RUI (CN)
LI CONGXI (CN)
SUN HUI (CN)
LIU XIANGLIE (CN)
Application Number:
PCT/CN2023/075696
Publication Date:
September 14, 2023
Filing Date:
February 13, 2023
Export Citation:
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Assignee:
NINGBO RONBAY NEW ENERGY TECH CO LTD (CN)
International Classes:
H01M4/505; H01M4/525; H01M10/052
Foreign References:
CN114613985A2022-06-10
CN114843501A2022-08-02
CN103066275A2013-04-24
CN113178566A2021-07-27
Other References:
KIM MIN CHUL, NAM KYUNG-WAN, HU ENYUAN, YANG XIAO-QING, KIM HYUNGSUB, KANG KISUK, ARAVINDAN VANCHIAPPAN, KIM WOO-SEONG, LEE YUN-SU: "Sol-Gel Synthesis of Aliovalent Vanadium-Doped LiNi 0.5 Mn 1.5 O 4 Cathodes with Excellent Performance at High Temperatures", CHEMSUSCHEM, WILEY-VCH, DE, vol. 7, no. 3, 1 March 2014 (2014-03-01), DE , pages 829 - 834, XP093090484, ISSN: 1864-5631, DOI: 10.1002/cssc.201301037
HAI­-ZHI LIU, KONG ZHI-HAO; LIN XIAO-YAN; LIU PENG-DONG; DONG FA-HAI: "Effect of La,Ce,Yb Doping on Properties of LiNi0.5Mn1.5O4 High Voltage Cathode Materials ", CHINESE JOURNAL OF INORGANIC CHEMISTRY, CHINESE ELECTRONIC PERIODICAL SERVICES, CN, vol. 37, no. 10, 30 September 2021 (2021-09-30), CN , pages 1782 - 1792, XP093090489, ISSN: 1001-4861, DOI: 10.11862/CJIC.2021.210
S. J. RICHARD PRABAKAR ET AL.: "W-doped LiWxNi0.5Mn1.5−xO4 Cathodes for the Improvement of High Rate Performances in Li ion batteries", JOURNAL OF POWER SOURCES, vol. 209, 25 February 2012 (2012-02-25), XP028411909, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2012.02.053
S. J. RICHARD PRABAKAR ET AL.: "W-doped LiWxNi0.5Mn1.5−xO4 Cathodes for the Improvement of High Rate Performances in Li Ion Batteries", JOURNAL OF POWER SOURCES, vol. 209, 25 February 2012 (2012-02-25), XP028411909, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2012.02.053
HAILONG WANG: "Investigation on Nb Doped 5 V LiNi 0.5 Mn 1.5 O 4 Cathode", GUANGDONG CHEMICAL INDUSTRY, vol. 40, no. 23, 15 December 2013 (2013-12-15), pages 31 - 32, XP093090494
YI, TINGFENG ET AL.: "Enhanced Rate Performance of Molybdenum-Doped Spinel LiNi0.5Mn1.5O4 Cathode Materials for Lithium Ion Battery", JOURNAL OF POWER SOURCES, vol. 247, 17 September 2013 (2013-09-17), XP028760255, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2013.09.031
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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