Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2005-08-16
2005-08-16
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C423S599000, C429S224000, C241S023000
Reexamination Certificate
active
06929788
ABSTRACT:
The present invention relates to a method for preparing a lithium manganese complex oxide Li1+xMn2−xO4(0≦x≦0.12) used as a cathode active material of a lithium or lithium ion secondary battery.The present invention provides a method for preparing a manganese compound comprising the step of simultaneously applying a mechanical force and heat energy to a manganese compound to remove defects present in particles of the manganese compound and to control the aggregation of particles and the shape of the aggregated particles, a method for preparing a lithium manganese complex oxide with a spinel structure using the manganese compound prepared by the above method as a raw material, and a lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared by the above method as a cathode active material.A lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared from the manganese compound without defects inside particles as a cathode active material has excellent charge/discharge characteristics and cyclic performance.
REFERENCES:
patent: 4585718 (1986-04-01), Uedaira et al.
patent: 4590059 (1986-05-01), Mellors
patent: 4959282 (1990-09-01), Dahn et al.
patent: 5277890 (1994-01-01), Wang et al.
patent: 5523073 (1996-06-01), Sumida et al.
patent: 5702679 (1997-12-01), Sheargold et al.
patent: 5718877 (1998-02-01), Manev et al.
patent: 5837030 (1998-11-01), Schulz et al.
patent: 6083646 (2000-07-01), Sugeno et al.
patent: 6248477 (2001-06-01), Howard et al.
patent: 6270926 (2001-08-01), Yamashita et al.
patent: 6280699 (2001-08-01), Manev et al.
patent: 6361755 (2002-03-01), Manthiram et al.
patent: 6403257 (2002-06-01), Christian et al.
patent: 2002/0141937 (2002-10-01), Howard et al.
patent: 01022792 (2000-07-01), None
patent: 56-045829 (1981-04-01), None
patent: 60-096531 (1985-05-01), None
patent: 61-016473 (1986-01-01), None
patent: 62-126556 (1987-06-01), None
patent: 01263547 (1989-10-01), None
patent: 08102323 (1996-04-01), None
patent: 11-343120 (1999-12-01), None
patent: 2000-123876 (2000-04-01), None
patent: 2000294239 (2000-10-01), None
Bae Joon-Sung
Lee Ki-Young
Park Hong-Kyu
Park Seong-Yong
Ladas & Parry LLP
LG Chemical Co. Ltd.
Lish Peter J
Silverman Stanley S.
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