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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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7615316 |
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....
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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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7595130 |
Battery separator and lithium secondary battery
A separator is disclosed which enables to inject a non-aqueous electrolytic solution easily during production of batteries such as lithium ion secondary batteries and also enables to produce a...
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7585590 |
Rechargeable lithium-ion cell with triphenylamine redox shuttle
Provided is a rechargeable lithium-ion cell that contains a positive electrode, a negative electrode, a charge-carrying electrolyte containing a charge carrying medium and a lithium salt, and a...
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7582389 |
Non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the non-aqueous electrolyte includes an onium compound, a...
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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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7537861 |
Lithium secondary battery employing fluorine-substituted cyclohexylbenzene containing electrolytic solution
A lithium secondary battery comprising a positive electrode, a negative electrode of artificial graphite or natural graphite and a nonaqueous electrolytic solution having an electrolyte dissolved...
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7524581 |
Non-aqueous electrochemical cells
Electrochemical cells are disclosed. In some embodiments, an electrochemical cell includes a cathode having less than about 2,000 ppm of water, an anode, and an electrolyte having a first lithium...
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7524588 |
Nonaqueous secondary battery
A nonaqueous secondary battery includes a negative electrode using a negative electrode active material containing a carbonaceous material; a positive electrode using a positive electrode active...
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7510807 |
Non-aqueous electrolyte and a lithium secondary battery comprising the same
Disclosed is an electrolyte of a lithium secondary battery comprising a lithium salt, an organic solvent, and at least one additive compound selected from the group consisting of compounds...
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7491471 |
Electrolyte for lithium secondary battery and lithium secondary battery comprising same
An electrolyte for a lithium secondary battery which has a non-aqueous organic solvent including a γ-butyrolactone and optionally a cyclic carbonate, an ester compound having an electron...
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7482098 |
Electrolyte system having multiple liquid phases in contact with one another
A secondary cell employs a nonaqueous electrolyte solution including a nonaqueous solvent and a salt, and a flame retardant material that is liquid at room temperature and pressure and...
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7482101 |
Battery
A battery is provided. The battery provides improved battery characteristics such as cycle characteristics. A battery includes a cathode; an anode; and an electrolytic solution, wherein the anode...
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7442471 |
Solvent systems comprising a mixture of lactams and esters for non-aqueous electrolytes and non-aqueous electrolyte cells comprising the same
A non-aqueous electrolyte solution for lithium or a lithium ion cell, which improves lithium ion cell capacity retention and enhances storage life thereof. The non-aqueous solution can be...
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7402260 |
Non-aqueous solvent mixture and non-aqueous electrolytic solution containing such mixture
A non-aqueous mixture solvent for a non-aqueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent, and a fluorinated ketone of the formula:
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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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7341807 |
Non-flammable nonaqueous electrolyte solution and lithium ion cell using same
Disclosed are a non-flammable nonaqueous electrolyte solution and a lithium ion cell using the electrolyte solution. The non-flammable nonaqueous electrolyte solution comprises a ternary or...
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7273681 |
Non-aqueous secondary battery having negative electrode including graphite powder
Objects of the present invention is to provide a carbon material having a superior reversibility in lithium intercalation-deintercalation reaction, and a non-aqueous secondary battery using the...
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7261972 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery includes an electrode group having a positive electrode and a negative electrode wound flatly by way of an interposed separator, a positive electrode tab...
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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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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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7235332 |
Lithium ion polymer secondary cell
A porous element containing a fluoropolymer comprising vinylidene fluoride as a main unit and having a density of 0.55–1.30 g/cm 3 and a Gurley value of not more than 150 sec/100 cc is used as a...
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7229716 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode comprising a graphite as a negative electrode active material, and a nonaqueous electrolyte including...
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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...
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7226704 |
Electrolytes for lithium ion batteries
Electrolytes containing lithium-bis(oxalato)borate, a cyclic carbonate, one or more compounds selected from acrylic carbonates, aliphatic esters, alicyclic ethers and aliphatic, difunctional...
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7217480 |
Organic electrolytic solution and lithium battery using the same
An organic electrolytic solution includes a lithium salt and an organic solvent containing a phosphonate compound, and a lithium battery utilizes the organic electrolytic solution. When using the...
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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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7150941 |
Secondary battery
Provided is a secondary battery in which high energy density can be obtained and charging/discharging cycle characteristic can be improved. A positive electrode ( 13 ) and a negative electrode ( 15...
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7115340 |
Non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery according to the present invention is characterized by including a non-aqueous electrolyte which contains at least one of vinylene carbonate derivatives...
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7097944 |
Nonaqueous secondary cell
A nonaqueous secondary cell including the following elements: a positive electrode capable of absorbing and releasing lithium; a negative electrode capable of absorbing and releasing lithium; and a...
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7087349 |
Organic electrolytic solution and lithium secondary battery employing the same
An organic electrolytic solution and a lithium secondary battery employing the same, wherein the organic electrolytic solution for a lithium secondary battery includes a polymer adsorbent having an...
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7078132 |
Lithium battery having effective performance
A lithium battery which has an anode, a cathode having a compound capable of intercalating and deintercalating lithium, a separator interposed between the cathode and the anode, and an electrolyte...
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7063916 |
Battery
The invention provides a battery, which can improve a capacity and cycle characteristics. The battery comprises an electrode winding body, wherein a cathode and an anode are layered and wound with...
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7049032 |
Secondary power source
A secondary power source comprising a positive electrode made mainly of activated carbon, a negative electrode made mainly of a carbon material capable of doping and undoping lithium ions and an...
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7033707 |
Organic cyclic carbonate additives for nonaqueous electrolyte in alkali metal electrochemical cells
A lithium electrochemical cell of either a primary or a secondary chemistry activated with an electrolyte having a cyclic carbonate of a ring size equal to or larger than a six-member ring is...
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7026073 |
Non-aqueous electrolyte secondary battery
In an electrolyte of a non-aqueous electrolyte secondary battery using a cyclic carboxylic-acid ester exerting high conductivity under a low temperature condition, for suppressing reductive...
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7022145 |
Lithium secondary battery
Disclosed is a lithium secondary battery comprising a positive electrode including a material that is capable of reversible intercalation/deintercalation of lithium ions as a positive active...
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6998194 |
Nonaqueous electrolyte and nonaqueous electrolyte secondary battery
The present invention provide a nonaqueous electrolyte comprising a nonaqueous solvent, wherein the nonaqueous solvent includes ethylene carbonate (EC), propylene carbonate (PC), γ-butyrolactone...
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6984471 |
Nonaqueous electrolyte and nonaqueous electrolyte battery
A nonaqueous electrolyte has electrolyte salt dissolved in a nonaqueous solvent, wherein the ratio of the nonaqueous solvent having a ring structure is 50 wt % or more in all nonaqueous electrolyte...
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6958198 |
Non-aqueous electrochemical apparatus
The invention relates to a non-aqueous electrochemical apparatus in which the difference (γl−γse) between the surface tension γl of non-aqueous electrolyte and the surface free energy γse of...
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6942949 |
Rechargeable lithium electrochemical cell
A secondary battery is comprised of a positive electrode, a negative electrode formed from a lithium storage material, and a non-aqueous electrolyte. The non-aqueous electrolyte includes a lithium...
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6929885 |
Non-aqueous electrolytic secondary battery
A non-aqueous secondary battery having an electrode group and a non-aqueous electrolytic solution, characterized in that: (1) the electrode group is contained in a casing made of a sheet having a...
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6927001 |
Non-aqueous electrolytic solution and lithium secondary battery
A non-aqueous electrolytic solution composed of two or more organic compounds dissolved in a solvent composed of a cyclic carbonate and a chain carbonate, in an amount of 0.01 to 8 weight % for...
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6919145 |
Nonaqueous electrolytic solution type secondary battery
A non-aqueous electrolyte secondary battery comprising a negative electrode, a positive electrode and an electrolyte having a lithium salt dissolved in a non-aqueous solvent characterized in that...
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6905762 |
Non-aqueous electrolyte solutions comprising additives and non-aqueous electrolyte cells comprising the same
A non-aqueous electrolyte to be used in a Li-ion battery includes a lithium salt, a cyclic carbonate, a linear carbonate and an isocyanate-based additive, with the following general formula
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6884546 |
Secondary battery
Provided is a secondary battery in which high energy density can be obtained and charging/discharging cycle characteristic can be improved. A positive electrode ( 13 ) and a negative electrode ( 15...
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6841300 |
Electrolyte for a nonaqueous battery
An electrolyte containing calcium bistrifluoromethanesulfonimide [Ca((CF 3 SO 2 ) 2 N) 2 ] for a nonaqueous battery. The calcium bistrifluoromethanesulfonimide is soluble in an organic solvent and...
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6828066 |
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery includes positive and negative electrodes, a separator, a nonaqueous electrolyte provided by dissolving a lithium salt in a nonaqueous solvent. The...
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6815123 |
Lithium-ion battery using heat-activatable microporous membrane
The present application discloses a lithium-ion battery using heat-activatable microporous membrane which comprises a hot-melt adhesive, an engineering plastics, a tackifier and a filler. It also...
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