SODIUM-BASED ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING SAME - INDUSTRY-ACADEMIA COOP GROUP OF SEJONG UNIV

Title:

SODIUM-BASED ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2017/179917

Kind Code:

A1

Abstract:

Provided are a sodium-based electrode active material and a secondary battery comiprising the same. The electrode active material is represented by Formula 1 below, and has an orthorhombic structure with a space group of Cmcm. [Formula 1] Nax[Mn1-y-zM1 yM2 z]O2-αAα, where x is 0.5 to 0.8; M1 and M2 are, independently from each other, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nd, Mo, Tc, Ru, Rh, Pd, Pb, Ag, Cd, Al, Ga, In, Sn, or Bi; y is 0 to 0.25; z is 0 to 0.25; A is N, O, F, or S; and α is 0 to 0.1.

Inventors:

MYUNG SEUNGTAEK (KR)
CHOI JIUNG (KR)
JO CHANGHEUM (KR)

Application Number:

PCT/KR2017/003981

Publication Date:

October 19, 2017

Filing Date:

April 12, 2017

Export Citation:

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Assignee:

INDUSTRY-ACADEMIA COOP GROUP OF SEJONG UNIV (KR)

International Classes:

H01M4/505; C01D13/00; H01M10/054

Foreign References:

KR20150038831A	2015-04-09
US20100266900A1	2010-10-21
KR20070100918A	2007-10-12
KR101510528B1	2015-04-10

Other References:

PAULSEN, J. M. ET AL.: "Studies of the Layered Manganese Bronzes, Na2/3[Mnl-xMx]O2 with M=Co, Ni, Li, and Li2/3[Mnl -xMx ]O2 Prepared by Ion-exchange", SOLID STATE IONICS, vol. 126, no. 1 / 2, 1999, pages 3 - 24, XP002399348

Attorney, Agent or Firm:

E-SANG PATENT & TRADEMARK LAW FIRM (KR)

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