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| Number | Title | Issue Date |
| 8158285 | Electrolyte solvent for improving safety of battery and lithium secondary battery comprising the same The present invention provides an electrolyte solvent for batteries, which comprises fluoroethylene carbonate and linear ester solvent. Also, the present invention provides a lithium secondary battery comprising a positive electrode, a negative electrode and an elec... | 04/17/2012 |
| 7604902 | Can type lithium ion secondary battery The claimed invention is directed to an improved secondary battery having a substantially uniform thickness. In one embodiment, a can type lithium on secondary battery is formed to include a structure that enables the battery to have a substantially uniform thicknes... | 10/20/2009 |
| 7425388 | Electrolyte for a lithium battery and a lithium battery comprising the same An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a sulfone-based compound and b) a C3 to C30 organic peroxide or azo-based compound. The electrolyte may further include a... | 09/16/2008 |
| 7422827 | Nonaqueous electrolyte Disclosed is a nonaqueous electrolyte for a lithium-ion secondary battery that contains an addictive for preventing destruction of a solid electrolyte interface (SEI) layer and hence decomposition of the electrolyte that may cause generation of a gas, thereby preven... | 09/09/2008 |
| 7312000 | Electrolytic solution for secondary battery and secondary battery containing the same A battery, which has excellent safety in an overcharged state and is excellent in low-temperature characteristics and cycle characteristics, is provided. The electrolytic solution of the secondary battery contains a compound which has a diazine N,N′-dioxide... | 12/25/2007 |
| 7297442 | Nonaqueous electrolytic solution and lithium secondary battery employing the same 1. A non-aqueous electrolytic solution comprising an electrolytic salt in a non-aqueous solvent, which further contains a pentafluorophenoxy compound having the formula (I): in which R represents a substituting group such a... | 11/20/2007 |
| 7285361 | Non-aqueous secondary battery and portable equipment using the same A non-aqueous secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution where the non-aqueous electrolyte solution contains a compound A in which a halogen group is bonded to a benzene ring and a compound B oxidize... | 10/23/2007 |
| 7282303 | Non-aqueous secondary battery and portable equipment using the same A non-aqueous secondary battery is provided, which has excellent overcharging safety, less generation of gas during storage at a high temperature, and can ensure storage reliability. A non-aqueous secondary battery includes a positive electrode, a negative el... | 10/16/2007 |
| 7226703 | Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same Disclosed is an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and a lactam-based compound selected from the group consisting of compounds represented by formulas 1 to 6: | 06/05/2007 |
| 7217479 | Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium i... | 05/15/2007 |
| 7189477 | Low temperature electrochemical cells Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte solvent. In the fully charged state of the cell the concentration of lithium ions is preferably less than 0.3 M. The cell delivers high disc... | 03/13/2007 |
| 7166238 | Liquid-crystalline ionic conductor and method for producing the same A novel liquid-crystalline ionic conductor, which is useful in the electric, electronic, chemical and bioengineering fields, as an anisotropic reaction solvent, ionic conductor, electric field-responsible conductor or the like, and a method for producing the same, i... | 01/23/2007 |
| 7150944 | Non-aqueous electrolyte compositions and lithium secondary batteries made thereof Disclosed are non-aqueous electrolyte compositions of the present invention that comprise non-aqueous solvents and monomers such as aniline, phenanthrene, ethylenedioxythiophene, benzothiophene or derivatives thereof. The monomers are contained in the electrolytes o... | 12/19/2006 |
| 7150937 | Non-aqueous electrolyte secondary battery and negative electrode for the same A non-aqueous electrolyte battery is provided, which exhibits good high-rate discharge characteristics and low-temperature characteristics and ensures high safety when the negative electrode contains 0.6 to 1.7 parts by weight of a particulate modified styrene-butad... | 12/19/2006 |
| 7147964 | Non-aqueous electrolyte secondary battery and negative electrode for the same A non-aqueous electrolyte battery is provided, which exhibits good high-rate discharge characteristics and low-temperature characteristics and ensures high safety when the negative electrode contains 0.6 to 1.7 parts by weight of a particulate modified styrene-butad... | 12/12/2006 |
| 7132199 | Non-aqueous electrolyte and non-aqueous electrolyte secondary battery A non-aqueous electrolyte containing propylene carbonate and 1,3-propanesultone as additives can reduce the amount of a gas evolved during storage at a high temperature of a non-aqueous electrolyte secondary cell comprising the electrolyte, a non-aqueous electrolyte... | 11/07/2006 |
| 7105250 | Nonaqueous electrolytic solution with improved safety and lithium battery employing the same A nonaqueous electrolytic solution and a lithium battery employing the same include a lithium salt, an organic solvent, and a halogenated benzene compound. The use of the nonaqueous electrolytic solution causes formation of a polymer by oxidative decomposition of th... | 09/12/2006 |
| 7019494 | Methods of charging lithium sulfur cells Disclosed is a method of charging a lithium-sulfur electrochemical cell wherein the lithium-sulfur cell comprises a cathode comprising an electroactive sulfur-containing material, an anode comprising lithium, and a nonaqueous electrolyte. ... | 03/28/2006 |
| 7008608 | Li-Co-Mn oxide as cathode material for lithium batteries and method of synthesis of the same Provided is a lithium-cobalt-manganese oxide having the formula Li[CoxLi(1/3−x/3)Mn(2/3−2x/3)]O2(0.05 | 03/07/2006 |
| 6994936 | Nonaqueous electrolyte secondary battery The present invention is characterized in that a nonaqueous electrolyte contains a sultone compound having unsaturated bonds, and the present invention thereby aims at suppressing the swelling of a nonaqueous electrolyte secondary battery, as represented by a lithiu... | 02/07/2006 |
| 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 electrode is not more than 10 dynes/cm. ... | 10/25/2005 |
| 6927000 | Oxazoline surfactant anode additive for alkaline electrochemical cells According to the present invention an alkaline electrochemical cell can contain an anode having an anode active material, an alkaline electrolyte, a gelling agent and an oxazoline surfactant additive. The invention relates to an anode mix, to an anode containing the... | 08/09/2005 |
| 6866966 | Non-aqueous secondary battery having enhanced discharge capacity retention A discharge capacity retention of a non-aqueous secondary battery is enhanced by incorporating into its non-aqueous electrolytic solution a small amount of a substituted diphenyldisulfide derivative in which each of the diphenyl groups has a substituent such as alko... | 03/15/2005 |
| 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 nonaqueous electrolyte contains a compound as shown in the chemical formula... | 12/07/2004 |
| 6773838 | Non-aqueous electrolyte secondary battery and negative electrode for the same A non-aqueous electrolyte battery is provided, which exhibits good high-rate discharge characteristics and low-temperature characteristics and ensures high safety when the negative electrode contains 0.6 to 1.7 parts by weight of a particulate modified styrene-butad... | 08/10/2004 |
| 6692865 | Double current collector cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells A new sandwich cathode design is provided having a first cathode structure of a first cathode active material of a relatively low energy density but of a relatively high rate capability, for example SVO, mixed with a second cathode active material having ... | 02/17/2004 |
| 6630272 | Non-aqueous electrochemical device The present invention relates to an electrolyte for non-aqueous electrochemical device containing at least one of 6-substituted-1,3,5-triazine-2,4-dithiol and derivatives thereof as an additive and a non-aqueous electrochemical device, particularly a lith... | 10/07/2003 |
| 6509122 | Polymer electrolyte A polymer electrolyte for lithium secondary batteries in which growth of lithium dendrites is suppressed is disclosed, batteries exhibiting excellent discharge characteristics in low to high temperature, comprising a polymer gel holding a nonaqueous solve... | 01/21/2003 |
| 6489064 | Electrolyte system for lithium batteries, the use thereof, and method for enhancing the safety of lithium batteries Electrolyte systems for lithium batteries with enhanced safety containing at least one lithium-containing conductive salt and at least one electrolyte liquid, in which the electrolyte liquid includes an effective amount of at least one partially fluorinat... | 12/03/2002 |
| 6475680 | Lithium secondary battery, its electrolyte, and electric apparatus using the same A lithium secondary battery which is capable of terminating its operation safely with no accompanying rapid change in appearance, no gas generation, nor pressure change when any of an overcharge, overdischarge, and abnormal temperature rise occurs in the ... | 11/05/2002 |
| 6455200 | Flame-retardant additive for li-ion batteries A lithium-ion battery having an anode electrode, a cathode electrode and a non-aqueous solvent lithium electrolyte. At least one cyclophosphazene is added to the non-aqueous solvent lithium electrolyte, which cyclophosphazene acts as a flame-retardant mat... | 09/24/2002 |
| 6376765 | Electrolyte composition, photoelectric conversion device and photo-electrochemical cell An electrolyte composition comprising a compound represented by the following general formula (1): ##STR1## wherein R represents a substituent containing a --(CR1 R2 --CR3 R4 --O)n -- bond (in which R... | 04/23/2002 |
| 6326105 | Composite polymer electrolytes for alkali metal electrochemical devices which contain a non-woven glass fiber net Polymer electrolyte composites for alkali metal electrochemical devices which are formed by coating an inert, lightweight, electrically insulating, non-woven glass fiber net which includes a polyvinyl alcohol binder, with a liquid polymer which may be ion... | 12/04/2001 |
| 6300016 | Polycarbonate electrolyte, the preparation thereof and polymer lithium batteries containing the same A polycarbonate electrolyte comprising a polycarbonate membrane matrix and a lithium salt-containing electrolytic solution impregnated into the polycarbonate membrane matrix. The polycarbonate has the formula: ##STR1##... | 10/09/2001 |
| 6274277 | Organic electrolyte battery The present invention relates to an organic electrolyte battery configured by sealing power generating elements comprising an organic electrolyte by a positive can, a negative can and a gasket, wherein said organic electrolyte includes a lithium salt cont... | 08/14/2001 |
| 6232021 | Nonaqueous secondary battery A nonaqueous secondary battery comprising a positive electrode material, a negative electrode material, and a nonaqueous electrolytic solution containing a lithium salt, which contains at least one triarylamine compound and at least one organoboron compou... | 05/15/2001 |
| 6183907 | Binder for an electrode of an electrochemical system with a non-aqueous electrolyte The present invention consists in a binder for an electrode in an electrochemical system with a non-aqueous electrolyte, characterized in that it contains acrylonitrile-butadiene rubber and carboxymethylcellulose with an average molecular weight of over a... | 02/06/2001 |
| 6174628 | Electrolyte containing dihalodicarbonyl compounds and electric energy generator using same An electrolyte containing at least one of dihalodicarbonyl compounds, in which hydrogen atoms of a methylene group between the two carbonyl groups are substituted with halogen atoms, and an electric energy generator comprising the electrolyte, an active m... | 01/16/2001 |
| 6153338 | Nonaqueous organic electrolytes for low temperature discharge of rechargeable electrochemical cells An alkali metal secondary electrochemical cell, and preferably a lithium ion cell, activated with a quaternary solvent system, is described. The solvent system comprises a quaternary mixture of dialkyl carbonates and cyclic carbonates, and preferably dime... | 11/28/2000 |
| 5976731 | Non-aqueous lithium ion secondary battery In a non-aqueous lithium ion secondary battery comprising a positive electrode and a negative electrode which are capable of reciprocally receiving and releasing lithium ions, a non-aqueous electrolyte solution containing a lithium salt in a non-aqueous s... | 11/02/1999 |
