Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1997-04-17
1999-01-12
Bos, Steven
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423 50, 423 58, 429224, C01G 3714, C01G 4500, C01D 1500
Patent
active
058583246
ABSTRACT:
A process for preparing a compound that includes the steps of: (a) preparing a solution comprising (i) a chromium source, (ii) a manganese source, (iii) a lithium source, and (iv) an oxygen source, where the relative amounts of each of the sources is selected to yield, following step (c), a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y.gtoreq.2, 0.25<x<2, and z.gtoreq.0; (b) treating the solution to form a gel; and (c) heating the gel under an inert atmosphere for a time and at a temperature sufficient to yield a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y.gtoreq.2, 0.25<x<2, and z.gtoreq.0. The invention also features a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y>2, 0.25<x<2, and z.gtoreq.0, and an electrode composition containing this compound.
REFERENCES:
patent: 4567031 (1986-01-01), Riley
patent: 5084366 (1992-01-01), Toyoguchi
patent: 5370949 (1994-12-01), Davidson et al.
patent: 5531920 (1996-07-01), Mao et al.
patent: 5540741 (1996-07-01), Gozdz et al.
patent: 5605773 (1997-02-01), Ellgen
patent: 5631104 (1997-05-01), Zhong et al.
patent: 5639438 (1997-06-01), Ellgen
patent: 5677087 (1997-10-01), Amine et al.
patent: 5683835 (1997-11-01), Bruce
Chemical Abstracts, vol. 124, No. 10, Mar. 4, 1996, Columbus, Ohio, US; abstract No. 122067, AZUMA: XP002067628.
Davidsonij et al: "Rechargeable Cathodes Based on LI2C4XMN2-X04" Journal of Power Sources, vol. 54, No. 2, Apr. 1, 1995, pp. 205, 208, XP000542220.
Copy of International Search Report for International Application No. PCT/7S98/04940.
Nagaura et al., Lithium Ion Rechargeable Battery, Progress in Batteries and Solar Cells, vol. 9, pp. 209-217 (1990), no moNth.
Dahn et al., Rechargeable LiNi0.sub.2 Carbon Cells, J. Electrochem. Soc., vol. 138, pp. 2207-2211 (1991), Aug.
Ohzuku et al., Electrochemistry of Manganese Dioxide in Lithium Nonaqueous Cell, J. Electrochem. Soc., vol. 137, pp. 769-775 (1990), Mar.
Reid, M., Managanese Dioxide Rechargeable Lithium-Ion Battery, paper presented at Power '96, Santa Clara, California, Oct. 13-15, 1996.
Reimers et al., Electrochemical and In Situ X-Ray Diffraction Studies of Lithium Intercalation in Li.sub.x CoO.sub.2, J. Electrochem. Soc., vol. 139, pp. 2091-2097 (1992), Aug.
Dahn et al., Structure and Electrochemistry of Li.sub.1.+-.y NiO.sub.2 and a New Li.sub.2 NiO.sub.2 Phase With the Ni(OH).sub.2 Structure, Solid State Ionics, vol. 44, pp. 87-97 (1990), no month.
Gao et al., Synthesis and Characterization of Li.sub.1+x Mn.sub.2-x O.sub.4 for Li-Ion Battery Applications, J. Electrochem. Soc., vol. 143, pp. 100-114 (1996), Jan.
Gummow et al., Improved Capacity Retention in Rechargeable 4 V Lithium Lithium-Manganese Oxide (Spinel) Cells, Solid State Ionics, vol. 69, pp. 59-67 (1994), no month.
Ohzuku et al., LiMnO.sub.2 As Cathode for Secodary Lithium Cell, Chemistry Express, vol. 7, pp. 193-196 (1992), no month.
Reimers et al., Synthesis and Electrochemical Studies of LiMnO.sub.2 Prepared at Low Temperatures, J. Electrochem. Soc., vol. 140, pp. 3396-3401 (1993), Dec.
Koetschau et al., Orthorhombic LiMnO.sub.2 as a High Capacity Cathode for Li-Ion Cells J. Electrochem. Soc., vol. 142, pp. 2906-2910 (1995), Sep.
Davidson et al., Rechargeable Cathodes Based on Li.sub.2 Cr.sub.x Mn.sub.2-x O.sub.4, J. Power Sources, vol. 54, pp. 205-208 (1995), no month.
David et al., Structure Refinement of the Spinel-Related Phases of Li.sub.2 Mn.sub.2 O.sub.4 and Li.sub.0.2 Mn.sub.2 O.sub.4, J. Solid State Chemistry, vol. 67, pp. 316-323 (1987), no month.
Amine et al., A New Three-Volt Spinel Li.sub.1+x Mn.sub.1.5 Ni.sub.0.5 O.sub.4 .for Secondary Lithium Batteries, J. Electrochem. Soc., vol. 143, pp. 1607-1613 (1996), May.
Richard et al., A Cell for In Situ X-Ray Diffraction Based on Coin Cell Hardware and Bellcore Plastic Electrode Technology, J. Electrochem. Soc., vol. 144, pp. 554-557 (1997), Feb.
Li et al., Lattice-Gas Model Approach to Understanding the Structures of Lithium Transition-Metal Oxides LiMO.sub.2, Physical Review, vol. B49, pp. 826-831 (1994), Jan.
Armstrong et al., Synthesis of Layered LiMnO.sub.2 as an Electrode from Rechargeable Lithium Batteries, Nature, vol. 381, pp. 499-500 (1996), Jun.
Murphy et al., Ternary Li.sub.x TiO.sub.2 Phases from Insertion Reactions, Solid State Ionics, vols. 9 and 10, pp. 413-417 (1983), no month.
Reimers et al., Structure and Electrochemistry of Li.sub.x Fe.sub.y Ni.sub.1-y O.sub.2, Solid State Ionics, vol. 61, pp. 335-344 (1993), no month.
Tarascon et al., Li Metal-Free Rechargeable Batteries Based on Li.sub.1+x Mn.sub.2 O.sub.4 Cathodes (0.ltoreq.x.ltoreq.1) and Carbon Anodes, J. Electrochem. Soc. , vol. 138, pp. 2864-2868 (1991), Oct.
Hewston et al., A Survey of First-Row Ternary Oxides LiMO.sub.2 (M = Sc-Cu), J. Phys. Chem. Solids, vol. 48, pp. 97-108 (1987), no month.
Rosen et al., Structure and Electrochemistry of Li.sub.x Mn.sub.y Ni.sub.1-y O.sub.2, Solid State Ionics, vol. 57, pp. 311-318 (1992), no month.
Rossen et al., Synthesis and Electrochemistry of Spinel LT-LiCoO.sub.2, Solid State Ionics, vol. 62, pp. 53-60 (1993), no month.
Wiles et al., J. Appl. Cryst., vol. 14, pp. 149-151 (1981), no month.
Dahn Jeffrey R.
Zheng Tao
Bos Steven
Minnesota Mining and Manufacturing Company
Schultz Leland D.
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