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7390594 Anode material for lithium batteries  
Primary and secondary Li-ion and lithium-metal based electrochemical cell system. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte...
7387852 Polymer electrolyte and lithium battery using the same  
A polymer electrolyte extends the cycle life, improves the safety, and reduces the swelling of a battery, compared with a polymer electrolyte containing a poly(alkylene oxide) polymer. Also, a...
7381498 Positive electrode active material powder for lithium secondary battery  
To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is...
7381497 Positive electrode active material for non-aqueous electrolyte secondary battery  
A positive electrode active material for a non-aqueous electrolyte secondary battery, comprising a lithium-containing composite oxide, wherein the composite oxide is represented by the general...
7381496 Lithium metal oxide materials and methods of synthesis and use  
A composition having a formula Li x Mg y NiO 2 wherein 0.9<x<1.3, 0.01<y<0.1, and 0.91<x+y<1.3 can be utilized as cathode materials in electrochemical cells. A composition having...
7378190 Non-aqueous electrolyte secondary battery  
Storage performance in a charged state is improved with a non-aqueous electrolyte secondary battery using gamma-butyrolactone as a solvent. A non-aqueous electrolyte secondary battery includes a...
7378189 Electrode material for lithium secondary battery, electrode structure employing electrode material, and lithium secondary battery having electrode structure  
The present invention provides: an electrode material for a lithium secondary battery containing lithium boron mixed oxide having a monoclinic LiBO 2 structure and represented by a chemical...
7374841 Positive electrode active matter and secondary battery using this  
A cathode active material includes: (a) first oxide including (1) lithium (Li), nickel (Ni) and manganese, (2) a first element MI selected from Group 2 to Group 14 elements, and (3) oxygen; (b) a...
7368097 Preparation of nanocrystalline lithium titanate spinels  
Process for preparing nanocrystalline lithium titanate spinels by reacting lithium hydroxide and a titanium alkoxide at elevated temperature in a reaction mixture which forms water of reaction.
RE40302 Polyelectrolyte, non-aqueous electrolyte, and electrical device containing the same  
Provided are a polymeric electrolyte or a nonaqueous electrolyte that can improve a transport rate of charge carrier ions by adding a compound having boron atoms in the structure, preferably one or...
7364793 Powdered lithium transition metal oxide having doped interface layer and outer layer and method for preparation of the same  
The present invention provides a powdered lithium transition metal oxide useful as a major component for cathode active material of rechargeable lithium batteries, comprising a lithium transition...
7358009 Layered electrodes for lithium cells and batteries  
Lithium metal oxide compounds of nominal formula Li 2 MO 2 , in which M represents two or more positively charged metal ions, selected predominantly and preferably from the first row of transition...
7341803 Battery with increased electrode interfacial surface area and increased active materials  
An alkaline battery cell with improved high rate and high power discharge capacity is provided, without sacrificing capacity at low rate and low power, by adding at least a second anode or cathode,...
7335446 Non-aqueous electrolyte secondary battery  
Cycle performance is improved without degrading initial efficiency of a non-aqueous electrolyte secondary battery that includes a positive electrode, a negative electrode, a non-aqueous electrolyte...
7332248 Active material for positive electrode for non-aqueous electrolyte secondary battery and method of manufacturing the same  
A method of manufacturing a non-aqueous electrolyte secondary battery is provided wherein the positive electrode is made from a lithium-metal composite oxide represented by the general formula Li x...
7326498 Method for preparing positive active material for rechargeable lithium battery and positive active material prepared by same  
Disclosed is a method of preparing a positive active material for a rechargeable lithium battery including adding first and second compounds to a solvent to prepare an acidic solution with a pH...
7316866 Ionic liquid-modified cathode and electrochemical device using the same  
The present invention provides a cathode produced from a cathode slurry comprising: (a) a cathode active material based on a lithium-containing metal composite oxide or a chalcogenide compound; and...
7316865 Active material for lithium secondary battery and method of preparing active material  
A process of manufacturing a positive active material for a lithium secondary battery includes preparing a coating-element-containing organic suspension by adding a coating-element source to an...
7314685 Oxidized titanium as a cathodic current collector  
A titanium substrate having a thickened outer oxidation layer provided thereon by a treatment process performed either in an air atmosphere at elevated temperatures or through electrolytic...
7314684 Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries  
A positive electrode active material for lithium-ion rechargeable batteries of general formula Li 1+x Ni α Mn β A γ O 2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and...
7314683 Carbon compound-adsorbed cathode active material and lithium battery using the same  
A cathode active material is prepared by mixing a transition metal compound and a lithium compound in a molar ratio of 1:1.0-1:1.2 and thermally treating the mixture while supplying CO 2 and O 2 ...
7312001 Non-aqueous electrolytic solution and lithium battery employing the same  
A non-aqueous electrolytic solution and a lithium battery employing the same are provided. The non-aqueous electrolyte solution that contains a substituted or unsubstituted acetate can effectively...
7311999 Anode for a battery and a battery using an anode  
An anode and a battery using same as provided. The battery has a winding electrode body wherein a cathode and an anode are layered and wound with a separator and an electrolyte layer, which hold an...
7309545 Anode material and battery using the same  
Provided is a battery with a higher capacity and superior charge-discharge cycle characteristics. A cathode contained in a package can and an anode contained in a package cup are laminated with a...
7307830 Capacitor with battery form factor housing  
High reliable energy density capability of double-layer capacitor electrode technology now enables the use of capacitors as supplements to, or replacements for, battery technologies. In one...
7303840 Manganese oxide composite electrodes for lithium batteries  
An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor of a lithium metal oxide with the formula xLi 2 MnO 3 .(1−x)LiMn 2−y M y O 4 for 0<x<1 and...
7300722 Lithium battery containing bismuth metal oxide  
A battery includes a cathode having an oxide containing one or more metals and pentavalent bismuth, an anode including lithium, a separator between the cathode and the anode, and an electrolyte....
7294436 Nonaqueous electrolytic solution and lithium secondary batteries  
In order to manufacture a lithium secondary battery having excellent performances in safety under overcharge condition, cycle property, electric capacity, and storage endurance, 0.1 wt. % to 10 wt....
7294435 Positive electrode active material for nonaqueous electrolyte secondary battery, positive electrode mixture for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery  
Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery containing at least a lithium-transition metal composite oxide of a spinel structure, in which at...
7285359 Secondary battery-use negative electrode and secondary battery using it  
An object of the present invention is to provide a negative electrode for a secondary battery which has large capacity and restrains a rise in resistance inside the battery and reduction in...
7285357 Electrochemically active material for the positive electrode of an electrochemically rechargeable lithium cell  
An electrochemically active material resulting from substituting a portion of the nickel in a single-phase composite oxide of nickel and lithium of the LiNiO 2 type, characterized in that the...
7282300 Lithium secondary battery comprising overdischarge-preventing agent  
The present invention relates to a lithium secondary battery comprising an overdischarge-preventing agent. Particularly, the present invention provides a lithium secondary battery comprising an...
7282299 Solid electrolyte battery  
A solid electrolyte battery includes a cathode having a cathode active material and a solid electrolyte and an anode. The solid electrolyte includes a first polymer having a binding force and a...
7270914 Lithium secondary cell  
In a lithium secondary cell having a negative electrode, a positive electrode and, arranged between the electrodes, a polymer electrolyte layer, the internal resistance of the cell and the...
7270913 Nonaqueous-electrolyte secondary battery and method of manufacturing the same  
To offer excellent hermeticity inside a battery having high productivity and being covered with package members by means of solving a problem such as sealing failures caused by gaps between sides...
7267908 In cycling stability of Li-ion battery with molten salt electrolyte  
An example battery according to an embodiment of the present invention includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises a positive active...
7255965 Non-aqueous electrolytic solution  
The use of lithium bis(oxalate)borate (LiBOB) as an additive in a lithium secondary battery provides improved battery performance such as long life and high capacity retention after high...
7255963 Non-aqueous electrolyte rechargeable battery  
A non-aqueous electrolyte rechargeable battery including: (a) a positive electrode capable of charging and discharging lithium; (b) a negative electrode capable of charging and discharging lithium;...
7255957 Non-aqueous electrolyte cell and solid electrolyte cell  
A non-aqueous electrolyte cell is provided having improved cell characteristics and which maintains a cell shape encapsulated in a laminate film even when overdischarged to a cell voltage of 0 V....
7252906 Positive active material for a lithium secondary battery with higher performance and preparation method of the same  
Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high...
7248023 Charger for lithium secondary battery and electronic apparatus including charger  
A charger for a secondary battery including a positive electrode, a negative electrode including lithium-containing silicon represented by the composition formula Li x Si, and an electrolyte. This...
7241536 Electrolyte for lithium secondary battery and lithium secondary battery comprising same  
A non-aqueous electrolyte for a lithium secondary battery is provided. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an organic compound selected from the group consisting of...
7241534 Lithium polymer secondary cell  
A lithium polymer secondary battery comprising: a negative electrode including a carbonaceous material, as an active material, obtainable by attaching or covering an amorphous carbon on the surface...
7241532 Positive-electrode material for lithium secondary battery, secondary battery employing the same, and process for producing positive-electrode material for lithium secondary battery  
A subject for the invention is to provide a positive-electrode material, which has high capacity and high output and is inhibited from suffering a decrease in output with repetitions of charge and...
7238453 Non-aqueous electrolytic solution with mixed salts  
The use of at least two electrolyte salts in a lithium secondary battery provides improved battery performance such as long cycle life of high discharge capacity and high capacity retention.
7235193 Complex lithium metal oxides with enhanced cycle life and safety and a process for preparation thereof  
This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for...
7229719 Non-aqueous electrolyte secondary battery  
A highly safe non-aqueous electrolyte secondary cell with excellent self-extinguishing property or flame retardancy is provided which comprises an anode, a cathode, a non-aqueous electrolyte in...
7227235 Electrowetting battery having a nanostructured electrode surface  
A method and apparatus are disclosed wherein a battery comprises an electrode having at least one nanostructured surface. The nanostructured surface is disposed in a way such that an electrolyte...
7226698 Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery comprising same  
Disclosed is a positive active material for a lithium rechargeable battery, a method of preparing the same, and a lithium rechargeable battery comprising the same. The positive active material has...
7217476 Battery  
Disclosed is a battery with a light weight and a high energy density. The battery includes a anode 5 , having a layer of an anode active material 9 formed on an anode substrate 8 , a cathode 6...
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