ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, ELECTRODE COMPRISING SAME, AND SECONDARY BATTERY

Title:

ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, ELECTRODE COMPRISING SAME, AND SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2022/085891

Kind Code:

A1

Abstract:

Disclosed are an electrode active material comprising a compound represented by chemical formula 1 below, an electrode comprising same, and a secondary battery comprising same. Lix(Ni1-yMy)z(P2O7)4, wherein 5≤x≤7, 0.2≤y<1, 4≤z≤6, and M is an element selected from the elements of Groups 3 to 11, or a combination thereof, except that M is iron (Fe).

Inventors:

LIM SUNGJIN (KR)
MA SANGBOK (KR)
KA JONGHOON (KR)
KIM TAEYOUNG (KR)
BAE YOUNGJOON (KR)

Application Number:

PCT/KR2021/007492

Publication Date:

April 28, 2022

Filing Date:

June 15, 2021

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H01M4/58; C01B25/45; H01M10/052; H01M10/0562; H01M10/0585

Foreign References:

US20040202935A1	2004-10-14
EP3480874A1	2019-05-08
JP2013519990A	2013-05-30

Other References:

ÖRNEK AHMET; BULUT EMRAH; CAN MUSTAFA : "Influence of gradual cobalt substitution on lithium nickel phosphate nano-scale composites for high voltage applications", MATERIALS CHARACTERIZATION., ELSEVIER, NEW YORK, NY., US, vol. 106, 1 January 1900 (1900-01-01), US , pages 152 - 162, XP029254580, ISSN: 1044-5803, DOI: 10.1016/j.matchar.2015.05.029
ZHANG HUANG, HASA IVANA, BUCHHOLZ DANIEL, QIN BINGSHENG, GEIGER DORIN, JEONG SANGSIK, KAISER UTE, PASSERINI STEFANO: "Exploring the Ni redox activity in polyanionic compounds as conceivable high potential cathodes for Na rechargeable batteries", NPG ASIA MATERIALS, NATURE JAPAN KK, JP, vol. 9, no. 3, 1 March 2017 (2017-03-01), JP , pages e370 - e370, XP055924419, ISSN: 1884-4049, DOI: 10.1038/am.2017.41