Cathode active material and lithium battery using the same

Details Cathode active material and lithium battery using the same Cathode active material and lithium battery using the same

2011-04-19

2011-04-19

Silverman, Stanley (Department: 1736)

Compositions

Having utility as a reactive material in an electrochemical...

C252S500000, C429S220000, C429S223000, C429S224000, C429S231100, C429S231200, C423S599000, C423S593100, C423S594200

Reexamination Certificate

active

07927506

ABSTRACT:
Cathode active materials including lithium composite metal oxides having layered-spine composite structures are provided. The lithium metal oxide may be represented by the formula xLi2MO3-yLiMeO2-zLi1+dM′2−dO4, in which 0≦d≦0.33, 0<x<1, 0<y<1, 0<z<1 and x+y+z=1. In the formula M is selected from Mn, Ti, Zn, and combinations thereof. Me is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, B and combinations thereof. M′ is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, B, and combinations thereof. The cathode active materials have layered-spinel composite structures in which lithium can be intercalated and deintercalated. Lithium batteries including the cathode active materials show high initial coulombic efficiencies and high capacity retention ratios.

REFERENCES:
patent: 5240794 (1993-08-01), Thackeray et al.
patent: 2003/0035999 (2003-02-01), Gao et al.
patent: 2003/0180616 (2003-09-01), Johnson et al.
patent: 2005/0026040 (2005-02-01), Thackeray et al.
patent: 2006/0051671 (2006-03-01), Thackeray et al.
patent: 2006/0051673 (2006-03-01), Johnson et al.
patent: 2009/0224212 (2009-09-01), Manthiram et al.
Hong et al, “Structural and electrochemical properties of (1-x)Li[Ni0.20Mn0.60]O2-xLi[Co0.50Li0.167MnO0.333]O2 for lithium secondary batteries,” J. Power Sources, 2005,147,214-219.
Jin et al, “Structural and electrochemical characterization of Li[CoNi1/2Mn1/2).x(Li1/3Mn2/3)(1-2x)]O2 solid solutions with layered lithium manganese oxides,” J. Power Sources, 2005, 146, 630-635.
Johnson et al, Lithium-manganese oxide electrode with layered-spinel composite structures xLi2MnO3. (1-x)Li1+yMn2-yO4 (0<x<1, 0<=y<=0.33) for lithium batteries, Electrochem. Commun. 2005, 7, 528-536.
Thackeray, M.M., et al.,Comments on the structural complexity of lithium-rich Li1+xM1-xO2electrodes(M=Mn, Ni, co)for lithium batteries, Electrochemistry Communications , vol. 8, (2006), pp. 1531-1538, XP 005638334.
Thackeray, M.M., et al.,Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteries, Journal of Materials Chemistry, vol. 15, (2005), pp. 2257-2267, XP 007903619.
Park, S-H., et al.,Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries, Electrochemistry Communications, vol. 9, (2007), pp. 262-268, XP 005878764.
European Search Report dated Jan. 31, 2008, for European application 07116997.3, indicating relevance of listed references in this IDS.
SIPO Office action dated Oct. 8, 2010, for corresponding Chinese Patent application 200710149947.9 with English translation, citing U.S. Publication 2006/0051671, previously cited in U.S. Office action dated Apr. 8, 2010 in this application.

Affiliated with

Also associated with

Rating

Cathode active material and lithium battery using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cathode active material and lithium battery using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cathode active material and lithium battery using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2641840