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7629082 |
Anode active material with improved electrochemical properties and electrochemical device comprising the same
Disclosed is an anode active material, comprising: (a) a carbonaceous material; and (b) a carbide coating layer partially or totally formed on a surface of the carbonaceous material, the carbide...
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7629080 |
Electrode materials for electrochemical cells
A lithiated metal phosphate material is doped by a portion of the lithium atoms which are present at the M2 sites of the material. The doped material has the general formula: Li 1+x M 1−x−d D d...
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7625670 |
Cathode material for secondary batteries with non-aqueous electrolyte, a process for preparing the cathode material and lithium secondary battery containing the same
Provided are a cathode active material for a non-aqueous electrolyte lithium secondary battery, a process for preparing the same and a lithium secondary battery comprising the same. The cathode...
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7622224 |
Lithium storage cell presenting both a high electrical potential and a high lithium insertion capacity
A lithium storage cell comprises at least a first electrode comprising an active material wherein Li + cations can be inserted, a second electrode and an electrolyte. The active material of the...
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7622223 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive active material, a negative electrode containing a negative active material and a nonaqueous...
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7615508 |
Cathode for air assisted battery
A cathode for an air recovery alkaline battery is disclosed. The cathode contains at least about 60% by weight MnO 2 and at least about 2% by weight of a hydrophobic polymer; the MnO 2 consists...
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7615317 |
N-oxide redox shuttles for rechargeable lithium-ion cell
A rechargeable lithium-ion cell contains a positive electrode, negative electrode, charge-carrying electrolyte containing charge carrying medium and lithium salt, and cycloaliphatic N-oxide...
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7615313 |
Electrode material for lithium secondary battery including particles having central portion and surface portion, electrode structure and lithium secondary battery
An electrode material for a lithium secondary battery which includes particles each having a central portion and a surface portion covering the surface of the central portion. A distance from a...
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7608362 |
Cathode active material, method of preparing the same, and cathode and lithium battery containing the material
Composite cathode active materials having a large diameter active material and a small diameter active material are provided. The ratio of the average particle diameter of the large diameter active...
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7608332 |
Cathode material particle comprising of plurality of cores of coated grains
A cathode material particle comprising a plurality of cathode material cores and each cathode material core having plurality of grains and each grain being uniformly covered with a nano-metal oxide...
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7601463 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery includes: an outer housing; a nonaqueous electrolyte filled in the outer housing, a positive electrode housed in the outer housing, a negative electrode...
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7601462 |
Cathode active material for lithium rechargeable battery and lithium rechargeable battery using the same
A cathode active material for a lithium rechargeable battery is provided. The cathode active material is used for a lithium rechargeable battery containing a cathode, an anode, and an electrolytic...
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7597997 |
Nonaqueous electrolyte secondary battery and method for producing same
A nonaqueous electrolyte secondary battery with excellent charging/discharging cycle characteristics is provided, more specifically a nonaqueous electrolyte secondary battery in which deterioration...
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7594938 |
Enclosed nickel-zinc primary battery, its anode and production methods for them
A high-capacity enclosed nickel-zinc primary battery excellent in characteristics such as capacity maintenance factor, energy density, and high-efficient discharge characteristics, an anode using...
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7592100 |
Positive-electrode active material and nonaqueous-electrolyte secondary battery containing the same
The present invention provides a high-capacity and low-cost non-aqueous electrolyte secondary battery, comprising: a negative electrode containing, as a negative electrode active material, a...
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7585592 |
Positive electrode and nonaqueous electrolyte secondary battery
A positive electrode for a secondary battery and a secondary battery. A mixture of at least a lithium metal oxide with a hexagonal crystal structure (belonging to the R3m space group) containing...
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7585435 |
High density cobalt-manganese coprecipitated nickel hydroxide and process for its production
The present invention provides high density cobalt-manganese coprecipitated nickel hydroxide, particularly having a tapping density of 1.5 g/cc or greater, and a process for its production...
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7585432 |
High density cobalt-manganese coprecipitated nickel hydroxide and process for its production
The present invention provides high density cobalt-manganese coprecipitated nickel hydroxide, particularly having a tapping density of 1.5 g/cc or greater, and a process for its production...
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7582386 |
Nonaqueous electrolyte battery, battery pack and vehicle
A nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The positive electrode comprises a positive electrode layer containing a metal compound. The metal compound...
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7582383 |
Complex oxide materials and cathode materials for lithium ion battery
A lithium secondary battery that is highly safe and has long life. The battery, which is a nonaqueous lithium secondary battery, utilizes a cathode active material comprising a complex oxide...
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7582382 |
Non-sintered electrode of nickel hydroxide in a binder of cellulose compound and styrene-acrylate co-polymer for an electrochemical generator
A non-sintered electrode containing a two-dimensional conductive support covered in a layer containing an electrochemically active material and a binder which is a mixture of a styrene-acrylate...
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7582381 |
Alkaline storage cell and hydrogen storage alloy for negative electrode of alkaline storage cell
An alkaline storage cell has a positive electrode, a negative electrode containing a hydrogen storage alloy, and an alkaline electrolyte. The hydrogen storage alloy has a composition expressed by a...
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7579114 |
Method of preparing positive electrode active material
A positive electrode active material for a non-aqueous electrolyte battery comprising a lithium-containing transition metal oxide, produced with the use of a dry precursor obtained by: introducing...
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7575831 |
Co-precipitation method for the preparation of Li1+xNi1-yCoyO2-based cathode materials
A method for preparing Li 1+x Ni 1−y Co y O 2 cathode materials is disclosed, wherein −0.2≦x≦0.2 and 0.05≦y≦0.5. The method includes the following steps: (A) adding a first solution...
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7572552 |
Nonaqueous electrolyte secondary battery
The present invention provides a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains an alloy...
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7569306 |
Alkaline battery and manufacturing method of positive electrode material therefor
An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal...
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7563540 |
Cathode active material and lithium secondary battery using the same
A cathode active material of formula (1) below, and a lithium secondary battery using the same, have an extended cycle life and effective charging/discharging characteristics and include a compound...
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7563431 |
Nickel hydroxide and method for producing same
A process for preparing nickel hydroxide by alkaline precipitation from nickel salt solutions in the presence of complexing agents, in which the precipitation is carried out at at least two...
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7556889 |
Positive electrode active material for secondary battery, positive electrode for secondary battery, secondary battery and method for producing positive electrode active material for secondary battery
A life of a secondary battery is extended, increase in a resistance when storing a secondary battery at an elevated temperature is prevented, and increase in a resistance during a charge-discharge...
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7556887 |
Nonaqueous electrolyte secondary battery with negative electrode having a La3Co2Sn7 type crystal structure
A nonaqueous electrolyte secondary battery includes a case, a nonaqueous electrolyte provided in the case, a positive electrode provided in the case and capable of absorbing-releasing Li, and a...
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7556655 |
Method of producing lithium ion cathode materials
A method of producing Li y [Ni x Co 1−2x Mn x ]O 2 wherein 0.025≦x≦0.5 and 0.9≦y≦1.3. The method includes mixing [Ni x Co 1−2x Mn x ]OH 2 with LiOH or Li 2 CO 3 and one or both of...
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7553587 |
Non-aqueous electrolyte secondary battery and method of manufacturing the same
A non-aqueous electrolyte secondary battery has an insulating porous membrane, on at least one of a positive electrode, negative electrode, and separator thereof. The membrane contains an inorganic...
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7550230 |
Electrolyte composition for nickel-zinc batteries
Electrodes and electrolytes for nickel-zinc secondary battery cells possess compositions that limit dendrite formation and other forms of material redistribution in the zinc electrode. In addition,...
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7547491 |
Cathode active material, method of preparing the same, and cathode and lithium battery applying the material
Composite cathode active materials comprising a composite oxide and an acid treated with an organic solvent are provided. The composite cathode active materials are prepared by treating mixtures of...
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RE40727 |
Alkaline cells having low toxicity rechargeable zinc electrodes
A nickel zinc alkaline cell has a zinc oxide negative electrode supported on a conductive substrate, an alkaline electrolyte, and a positive electrode having nickel hydroxide paste supported on a...
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7529014 |
Boron-substituted lithium compounds, active electrode materials, batteries and electrochrome devices
Lithium insertion compound having the following formula (I):
Li α M β M1 v M2 w M3 x M4 y M5 z B γ (XO 4−ε Z ε ) 1 ...
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7527896 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery which comprises a positive electrode including particles of lithium-containing layered nickel oxide represented by a general formula Li a Ni x Co y Al z M...
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7527890 |
Sealed alkaline storage battery, electrode structure and charging method for the same, and charger for sealed alkaline storage battery
A sealed alkaline storage battery including a nickel electrode as a positive electrode, characterized by having the function of being capable of charge when the gas pressure in the battery and/or...
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7524529 |
Method for making a lithium mixed metal compound having an olivine structure
A method for preparing a Li x M y PO 4 compound having an olivine structure includes: preparing a solution containing transition metal M ions, Li + ions and PO 4 3− ions; drying the solution...
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7524439 |
Positive electrode for non-aqueous electrolyte battery and method of producing the same as well as non-aqueous electrolyte battery
In a positive electrode of a non-aqueous electrolyte battery, at least one metal oxide selected from the group consisting of titanium dioxide, alumina, zinc oxide, chromium oxide, lithium oxide,...
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7521151 |
Rechargeable lithium battery with specific surface roughness of positive electrode and/or negative electrode
A rechargeable lithium battery includes a positive electrode having a positive active material to reversibly intercalate and deintercalate lithium ions, a negative electrode having a negative...
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7517613 |
Positive electrode material for lithium secondary battery and lithium secondary battery using the same
A positive electrode material for a nonaqueous lithium secondary battery and a lithium secondary battery that has superior cycle life and safety and reduced internal resistance of the battery at...
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7510804 |
Cathode material for use in lithium secondary battery and manufacturing method thereof
A cathode material for use in a lithium secondary battery of excellent thermal stability contributing to the improvement of safety of the battery and having large discharging capacity, as well as a...
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7510801 |
Alkaline battery and method for producing the same
There is provided an alkaline battery produced by sealing in an outer package body: a positive mixture containing at least one selected from manganese dioxide and a nickel oxide, a conducting...
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7507501 |
Positive active material composition for rechargeable lithium batteries
A positive active material composition for a rechargeable lithium battery includes at least one lithiated compound, and at least one additive compound selected from the group consisting of a...
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7501208 |
Doped manganese dioxides
An active manganese dioxide electrode material that exhibits improved electrochemical performances compared with conventional manganese dioxide materials includes at least one dopant. The doped...
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7494744 |
Cathode material for Li-ion battery applications
A family of Li-ion battery cathode materials and methods of synthesizing the materials. The cathode material is a defective crystalline lithium transition metal phosphate of a specific chemical...
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7494739 |
Fuel cell
A fuel cell. The anode of the fuel cell comprises a hydrogen oxidation catalyst comprising a finely divided metal alloy particulate. The metal alloy particulate has an average particle size of less...
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7488465 |
Solid state synthesis of lithium ion battery cathode material
Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide...
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7481991 |
Process for producing lithium-containing composite oxide for positive electrode for lithium secondary battery
A process to produce a positive electrode active material for a lithium secondary battery, having a large volume capacity density and high safety, uniform coating properties, charge and discharge...
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