Abstract: In one aspect, a negative plate for a battery comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. In another aspect, a method for preparing a negative plate for a battery comprises coating a negative active material onto a negative current collector. The negative current collector comprises a conductive non-woven fabric. In yet another aspect, a battery comprises a negative plate. The negative plate comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric.

Abstract: A battery cathode including a current collector and a cathode material coated on and/or filled in the current collector, said cathode material including a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof and the content of lithium cobaltate is 0.1-15 wt % (weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.

Abstract: The present invention discloses positive electrodes and their methods of fabrication. These electrodes are low in cost. Lithium rechargeable batteries that use these positive electrodes have excellent cycling properties at high temperature. The positive electrode of the embodiments of this invention comprises of a current collector coated by two layers of active materials for positive electrodes. The active material for the first layer of coating is one or more active materials selected from the following: spinel lithium manganese oxide, and spinel lithium manganese oxide derivatives. The active material for the second layer of coating is one or more active material selected from the following: lithium cobalt oxide, lithium cobalt oxide derivatives, lithium nickel oxide, and lithium nickel oxide derivatives.

Abstract: The present invention discloses active materials for the positive electrodes of rechargeable batteries and the methods of fabrication for said active materials as well as positive electrodes thereof. Said active material comprises of a mixture of two components, A and B. A are compounds of lithium nickel cobalt metal oxide while B are oxides of lithium cobalt. In a preferred embodiment, a formula for said compounds of lithium nickel metal oxide, A, is LiaNi1-b-cCobMcO2 where 0.97?a?1.05, 0.01?b?0.30, 0?c?0.10, and M is one or more of the following: manganese, aluminum, titanium, chromium, magnesium, calcium, vanadium, iron, and zirconium. The weight ratio of A:B is between 20:80 and 80:20. Rechargeable batteries with positive electrodes fabricated with the fabrication methods of this invention or with the active materials disclosed in this invention, exhibit excellent overall and electrochemical properties with no formation of halite magnetic domains.

Abstract: This invention provides improved lithium nickel cobalt oxide comprising of lithium nickel cobalt oxide granules with chemical formula LiNi1−xCoxO2, coated with a layer of lithium cobalt oxide granules with chemical formula LiCoO2. This improved lithium nickel cobalt oxide, particularly when 0.15<x<0.30, exhibits the favorable electrochemical properties of both the lithium nickel cobalt oxide granules and those of the lithium cobalt oxide granules. To fabricate said improved lithium nickel cobalt oxide, the lithium nickel cobalt oxide granules are first made by calcining a mixture of Ni1−xCo0.x(OH)2 and Li2CO3. The lithium nickel cobalt oxide granules are then added and stirred into a mixture of lithium and cobalt salts in de-ionized water and acrylic acid as the chelation agent to obtain a get. This gel is dried and calcined to form the improved lithium nickel cobalt oxide.

Abstract: This invention discloses compounds of lithium nickel cobalt metal oxide and the methods of their fabrication. The formula for said compounds of lithium nickel metal of oxide is LiaNi1-b-cCobMcO2 where 0.97≦a≦1.05 , 0.01≦b≦0.30 , 0≦c≦0.10, and M is one or more or the following: manganese, aluminum, titanium, chromium, magnesium, calcium, vanadium, iron, and zirconium.