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7390336 |
Polyimide-based lithium metal battery
The present invention relates to Lithium Metal batteries. In particular, it is related to lithium metal batteries containing a polyimide-based electrolyte. The present invention concerns a new...
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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...
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7384706 |
Lithium-nickel-cobalt-maganese containing composite oxide, material for positive electrode active material for lithium secondary battery, and methods for producing these
Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a...
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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...
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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...
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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...
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7381395 |
Non-aqueous electrolyte secondary battery and method of manufacturing the same
A positive electrode used in the non-aqueous electrolyte secondary battery of the present invention includes a hexagonal system lithium-containing cobalt composite oxide represented by the general...
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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...
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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...
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7371482 |
Lithium transition-metal phosphate powder for rechargeable batteries
Methods of manufacture and use of phosphates of transition metals are described as positive electrodes for secondary lithium batteries, including a process for the production of LiMPO 4 with...
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7368203 |
Nonaqueous electrolyte secondary cell
The present invention provides a non-aqueous electrolyte secondary cell that has good high-temperature cycle characteristics and good high-temperature standing resistance, and that is highly safe...
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7354677 |
Battery pack
A battery pack comprising a lithium ion secondary battery and a current interrupting device for protecting the secondary battery, the secondary battery comprising positive and negative electrodes,...
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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...
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7335445 |
Positive electrode active material for alkaline storage battery, positive electrode and alkaline storage battery
A particulate positive electrode active material for an alkaline storage battery comprising: (a) solid solution nickel hydroxide particles containing at least magnesium and (b) a coating layer...
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7335444 |
Positive electrode active material for a secondary battery, secondary battery and process of manufacturing positive electrode active material for a secondary battery
A positive electrode active material containing lithium manganate having a spinel structure is used, wherein the value of a* of the L*a*b* color specification system is made to satisfy the...
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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...
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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...
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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...
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7316862 |
Active material for electrode and non-aqueous secondary battery using the same
A lithium-containing complex oxide represented by General Formula: Li 1+x+α Ni (1−x−y+δ)/2 Mn (1−x−y−δ)/2 M y O 2 (where 0≦x≦0.15, −0.05≦x+α≦0.2, 0≦y≦0.4;...
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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 ...
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7314682 |
Lithium metal oxide electrodes for lithium batteries
An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li (2+2x)/(2+x) M′ 2x/(2+x) M (2−2x)/(2+x) O 2−δ , in which 0≦x<1...
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7306779 |
Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cell
A composite oxide suitable for an active material of a positive electrode for a lithium secondary cell which can be used in a wide range of voltage, has a large electric capacity and excellent low...
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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...
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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...
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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...
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7270797 |
Process for producing positive electrode active material for lithium secondary battery
To provide a process for producing a lithium-cobalt composite oxide for a positive electrode of a lithium secondary battery excellent in volume capacity density, safety, charge and discharge cyclic...
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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...
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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...
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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;...
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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...
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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.
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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...
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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...
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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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7217475 |
Non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a...
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7217474 |
Positive electrode active material, non-aqueous electrolyte secondary battery and method for producing positive electrode active material
A non-aqueous electrolyte secondary battery employing a positive electrode active material containing a compound represented by the general formula Li x M y PO 4 , where 0<x≦2 and...
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7217406 |
Lithium-manganese composite oxide granular secondary particle, method for production thereof and use thereof
Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary...
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7211349 |
Silver vanadium oxide provided with a metal oxide coating
An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is ε-phase silver vanadium oxide (Ag 2 V 4 O 11 ) coated with a...
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7205072 |
Layered cathode materials for lithium ion rechargeable batteries
A number of materials with the composition Li 1+x Ni α Mn β Co γ M′ δ O 2−z F z (M′=Mg,Zn,Al,Ga,B,Zr,Ti) for use with rechargeable batteries, wherein x is between about 0 and 0.3, α is...
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7192672 |
Process for producing positive electrode active material for lithium secondary battery
To provide a process for producing a lithium-cobalt composite oxide for a positive electrode of a lithium secondary battery, which has a large volume capacity density, high safety, high charge and...
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7179565 |
Lithium ion secondary cell
A lithium ion secondary battery comprising: a positive electrode; a negative electrode; and a non-aqueous electrolyte, the positive electrode comprising a positive electrode active material and a...
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7175939 |
Non-aqueous electrolyte secondary battery
In a non-aqueous electrolyte secondary battery provided with a positive electrode, a negative electrode using carbon material as negative electrode active material, and a non-aqueous electrolyte...
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7157186 |
Method of producing positive electrode active material for non-aqueous electrolyte secondary battery
A method of producing a positive electrode active material for a non-aqueous electrolyte secondary battery, comprising the steps of: (a) preparing a raw material mixture, comprising “nx” mol of...
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7150940 |
Lithium ion secondary battery
A lithium ion secondary battery comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode active material, a...
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7147967 |
Cathode for metal-oxygen battery
Disclosed is a cathode material for a metal-oxygen battery such as a lithium-oxygen battery. The material comprises, on a weight basis, a first component which is an oxide or a sulfide of a metal....
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7144659 |
Negative electrode and lithium ion secondary battery using the same
A negative electrode for a lithium ion secondary battery comprising a material mixture layer comprising a carbonaceous material comprising a spherical natural graphite and a graphitized carbon...
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7138209 |
Positive active material for rechargeable lithium battery and method of preparing same
Disclosed is a positive active material for a rechargeable lithium battery. The positive active material includes a core and a surface-treatment layer on the core. The core includes at least one...
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7135251 |
Active material for battery and method of preparing the same
An active material for a battery has a surface-treatment layer including a compound of the formula (1):
MXO k (1)
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7132197 |
Battery
Provided is a battery with a higher capacity, a superior charge-discharge cycle characteristic and a superior load characteristic. A cathode and an anode with a separator in between are spirally...
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7129005 |
Polyimide matrix electrolyte and improved batteries therefrom
A battery includes an anode, a cathode, and a polymer matrix electrolyte (PME) separator disposed between the anode and the cathode. The PME separator includes a polyimide, at least one lithium...
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