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Patents - Batteries

Category list

January 2007
BATTERIES
WO 2006/112674 A1 (10/26/2006) LG Chem, Ltd
Goh E-Y, Hong S-T.
NEW SYSTEM OF LITHIUM ION BATTERY CONTAINING MATERIAL WITH HIGH IRREVERSIBLE CAPACITY
A novel lithium ion battery uses a lithium-free metal oxide cathode active material, and a material with high irreversible capacity. The anode comprising carbon instead of Li metal, is very safe compared to a conventional lithium battery and has a higher charge/discharge capacity compared to a battery using lithium cobalt oxide as cathode active material.
WO 2006/095760 A1 (09/14/2006) Sony Corporation
Yonezawa K, Sato T, Okawa T, Yamamoto Y.
POSITIVE ELECTRODE ACTIVE MATERIAL AND BATTERY
A battery with improved characteristics, has a positive electrode containing a lithium-cobalt complex oxide represented by LiaCoxMIyMIIzO2 (wherein MI is Al, Cr, V, Mn or Fe; MII is Mg or Ca; and 0.9 ? a ? 1.1, 0.9 ? x < 1, 0.001 ? y ? 0.05, 0.001 ? z ? 0.05 and x + y + z = 1), and further containing Zr as a sub-component. The ratio of Zr:Co ? 0.01 mol% but?10 mol%.
WO 2006/085467 A1 (08/17/2006) Mitsubishi Chemical Corporation
Shizuka K, Okahara K.
LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE MATERIAL THEREOF
A lithium nickel manganese cobalt complex oxide powder for the positive electrode material of lithium secondary batteries contains a lamellar crystal structure and a chemical composition represented by the following formula: : Li[Liz/(2+z){(LixNi(1-3x)/2Mn(1+x)/2)(1-y)Coy}2/(2+z)]O2 where 0.01 ? x ? 0.15, 0 ? y ? 0.35, and 0.02(1-y)(1-3x) ? z ? 0.15(1-y)(1-3x).
WO 2006/064979 A1 (06/22/2006) GS Yuasa Corporation
Miyamoto M, Kodama M, Ochiai S, Kanemoto M, Shodai K, Kuzuhara M, Watada M.
ALKALINE SECONDARY BATTERY-USE NICKEL ELECTRODE AND PRODUCTION METHOD THEREFOR AND ALKALINE SECONDARY BATTERY
An alkaline secondary battery has a nickel electrode having 0.01-0.5wt.% of lithium in terms of a single body, mainly containing high-order nickel hydroxide in which the oxidation number of nickel exceeds +2 or composite particles in which the nickel is partially replaced by cobalt of oxidation number of more than +2, on the surfaces of the core layer particles.
July 2006
WO2006/027925 A2 (03/16/2006) Nissan Motor Co., Ltd.
Ito T.
POSITIVE ELECTRODE MATERIAL FOR NON-AQUEOUS ELECTROLYTE LITHIUM-ION SECONDARY BATTERY AND METHOD FOR PRODUCTION THEREOF
A positive electrode material for use in a non-aqueous electrolyte lithium-ion secondary battery is configured by attaching a lithium compound to the surfaces of particles of a lithium nickel cobalt manganese oxide. This configuration results in imparting exalted durability to the non-aqueous electrolyte lithium-ion secondary battery.
WO2006/011430 A1 (02/02/2006) Toyota Jidosha Kabushiki Kaisha
Energy Co Ltd.
Ohkawa K., Yuasa S.
ALKALI BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, ALKALI BATTERY POSITIVE ELECTRODE, ALKALI BATTERY, AND METHOD FOR MANUFACTURING ALKALI BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL
WO2006/009177 A1 (01/26/2006) Seimi Chemical Co., Ltd.
Saito N., Horichi K., Uchida M., Kawasato T., Suhara M.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
A positive electrode active material for lithium ion secondary batteries having high safety, high discharge voltage, high capacity and excellent cycle durability, contains granular lithium-cobalt complex oxide of formula: LiaCobAlcMgdAeOfFg (where A is Ti, Nb or Ta.
WO2006/004279 A1 (01/12/2006) LG Chem, Ltd.
Park H.W., Yu J-S., Kim S-W., Kim M.S.
LITHIUM SECONDARY BATTERY WITH HIGH POWER
A non-aqueous electrolyte-based high power lithium secondary battery of long service life and superior safety even at high temperature, contains a mixture of a particular lithium manganese-metal composite oxide with spinel structure and a lithium nickel-manganese-cobalt composite oxide of layered structure, as a cathode active material.
WO2005/117195 A1 (12/08/2005) LG CHEM, LTD.
Kim D-M., Yoon J-M., Kim Y-J., Cho B., Jeong J-Y., Jeong D-J., Bae J-S.
LITHIUM SECONDARY BATTERIES WITH CHARGE-CUTOFF VOLTAGES OVER 4.35
An improved high-voltage lithium secondary battery, has a weight ratio of anode active material to lithium/cobalt-based cathode active material per unit area of between 0.44 and 0.70, and shows a charge cut-off voltage of between 4.35V and 4.6V. The battery satisfies capacity balance by controlling this weight ratio.
WO2005/109549 A2 (11/17/2005) Ovonic Battery Company, Inc.
Young K., Fierro C., Reichman B., Fetcenko M.A., Koch J., Zallen A.
NICKEL METAL HYDRIDE BATTERY DESIGN
Rechargeable nickel metal hydride batteries with a pre-charge in the negative electrode, which may be supplied by a variety of sources. The positive active material of the positive electrode may have positive active particles, such as nickel hydroxide, with a precursor coating incorporating cobalt material capable of forming a conductive network.
WO2005/103340 A1 (11/03/2005) Mitsui Mining & Smelting Co., Ltd.
Sakata T., Taniguchi K., Dobashi, M.
COMPOSITE FOIL, METHOD FOR PRODUCING SAME, CURRENT COLLECTOR USING SUCH COMPOSITE FOIL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Composite foils showing high tensile strength even after a high-temperature heat treatment, can be used as a current collector for nonaqueous electrolyte secondary batteries. In such foils, a cobalt plating layer or a cobalt-nickel alloy plating layer of thickness of 0.5-5.0 ?m. is formed on the surface of a copper foil.
WO2005/104274 A1 (11/03/2005) Mitsubishi Chemical Corporation
Shizuka K., Okahara K.
LAYERED LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE POWDER FOR MATERIAL OF POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY THEREFROM, AND LITHIUM SECONDARY BATTERY
A layered lithium nickel manganese cobalt composite oxide powder for material of positive electrode of lithium secondary battery that when used as a material of positive electrode of lithium secondary battery, can attain realization of not only cost reduction and high safety but also enhancement of battery performance.
January 2006
WO 2005/056480 A1 (06/23/05) 3M Innovative Properties Company
Eberman K, Scanlan J, Goodbrake Chris J.
SOLID STATE SYNTHESIS OF LITHIUM-NICKEL-COBALT-MANGANESE MIXED METAL OXIDES FOR USE IN LITHIUM ION BATTERY CATHODE MATERIAL
Single-phase lithium-transition metal oxide compounds with an O3 crystal structure. Containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed metal and heating the slurry.
WO 2005/056885 A1 (06/23/05) Toyo Kohan Co. Ltd
Ohmura H, Tomomori T, Honda Y, Yamane E.
METAL-PLATED STEEL SHEET FOR BATTERY CASE, BATTERY CASE USING THE PLATED STEEL SHEET FOR BATTERY CASE AND BATTERY USING THE BATTERY CASE
A metal-plated steel sheet for a battery case provides a battery having excellent discharge characteristics. The inner surface of the case has a dispersion platin glayer in which an extremely fine carbon black powder having a particle diameter of 10 to 200 nm is dispersed in a layer of nickel, cobalt, nickel-cobalt alloy, nickel-cobalt-phosphorus alloy or other nickel alloys.
WO 2005/057693 A1 (06/23/05) Mitsui Mining & Smelting Co. Ltd
Sakata T, Taniguchi K, Dobashi M.
NEGATIVE ELECTRODE COLLECTOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
A low cost thin collector of high tensile strength provides a negative electrode collector for nonaqueous electrolyte secondary battery has at least one major surface coated with a hard nickel plating layer, formed by electroplating in a bath containing a nickel and ammonium salts. the metal is for example any of copper, iron, cobalt, nickel, zinc and silver or alloys thereof.
WO 2005/045959 A1 (05/19/05) Toshiba Battery Co. Ltd
Kobayashi K, Maeda M, Furukoshi Y.
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR BATTERY, ANODE CAN FOR BATTERY, ZINCE NEGATIVE PLATE FOR BATTERY, MANGANESE DRY BATTERY AND METHOD FOR MANUFACTURING SAME
A negative electrode active material, mainly containing zinc and practically no lead has a corrosion mass loss from an area of 10cm2 of not more than 3.8 mg after being left at rest in an electrolyte solution for batteries which contains 2.9 ppm of nickel, 0.40 ppm of cobalt and 0.86 ppm of copper in a constant temperature bath for 66 hours at 45C.
February 2005
"WO2004/013882 A3 (02/24/05) NexTech Materials, Ltd."
"Seabaugh, M. M.; Swartz, S. L."
NANO-COMPOSITE ELECTRODES AND METHOD OF MAKING THE SAME
A2 published (02/12/04)
"WO2005/018021 A1 (02/24/05) Toyo Kohan Co., Ltd."
"Tomomori, T.; Honda, Y.; Yamane, E.; Okamatsu, E.; Ohmura, H."
"BATTERY CASE-USE SURFACE-TREATED STEEL SHEET, BATTERY CASE AND BATTERY USING IT"
"A steel battery case made from a treated steel sheet where the inner surface has a nickel-plated layer as a lower layer and a nickel-phosphorus-alloy-plated layer or a nickel-cobalt-phosphorus-alloy-plated layer as an upper layer is produced by a deep drawing method, ie a DI (drawing and ironing) method, or a DTR (drawing thin and redraw) method."
"WO2005/020354 A1 (03/03/05) Seimi Chemical Co., Ltd."
"Suhara, M.; Mihara, T.; Udea, K.; Wakasugi, Y."
POSITIVE ELECTRODE ACTIVE MATERIAL POWDER FOR LITHIUM SECONDARY BATTERY
"A composite oxide powder for positive electrode of lithium secondary battery which has high volumetric capacity, high safety, and excellent charge/discharge cycle durability, consists of agglomerated particles of a lithium composite oxide of general formula: LipNixCoyMnzMqO2-aFa where M is a transition metal other than Ni, Co or Mn, aluminum, or an alkaline earth metal."
WO 2005/028371 A1 (03/31/03) Seimi Chemical Co. Ltd
"Suhara, M; Mihara, T; Yajima, S; Ueda, K; Wakasugi, Y."
"COMPOSITE OXIDE CONTAINING LITHIUM, NICKEL, COBALT, MANGANESE, AND FLUORINE, PROCESS FOR PRODUCING THE SAME, AND LITHIUM SECONDARY CELL EMPLOYING IT"
"A composite oxide positive electrode active material for a readily-available high-safety lithium secondary cell having a wide usable voltage range, a high charge/discharge cycle resistance, and a high capacity, contains lithium, nickel, cobalt, manganese, and fluorine and has a general formula LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, 0

 

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