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30results about How to "Cycle well" patented technology
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Device for managing battery packs by selectively monitoring and assessing the operative capacity of the battery modules in the pack
InactiveUS6239579B1Rejuvenate and boost healthCycle wellCharge equalisation circuitCircuit monitoring/indicationElectricityElectrical battery
The invention relates to a device for managing battery packs by measuring and monitoring the operating capacity of individual battery modules in a battery pack. A programmable logic controller directs the selective closing of relays to allow individual battery modules to be load-tested using a variable discharge load unit, without compromising useful battery pack capacity. A battery module whose useful capacity falls below a predefined threshold may be connected to a battery charger for replenishment and then electrically realigned with the remaining modules in the pack for continued operation. Alternatively, an alarm may be triggered which alerts the user that the module is due for replacement. This sequence of events is performed on all cells in the pack at a predetermined interval.
Owner:ESTCO ENERGY +1
Lithium nickel manganese cobalt composite oxide used as cathode active material for lithium rechargeable battery, manufacturing method thereof, and lithium rechargeable battery
ActiveUS20090226811A1Improve battery performanceCycle wellElectrode manufacturing processesConductive materialManganeseCobalt
A lithium nickel manganese cobalt composite oxide used as a cathode active material for a lithium rechargeable battery, the composite oxide shown by the below general formula (1):LixNi1-y-zMnyCozO2 (1)(wherein 0.9≦x≦1.3, 0<y<1.0, and 0<z<1.0; and wherein y+z<1),the lithium nickel manganese cobalt composite oxide having an average particle size of 5-40 μm, a BET ratio surface area of 5-25 m2 / g, and a tap density of equal to or higher than 1.70 g / ml.
Owner:NIPPON CHECMICAL IND CO LTD
Composite graphite cathode material and preparation method thereof
ActiveCN104609400AImprove cycle performanceGood high current charge and discharge performanceCell electrodesCarbonizationGraphite particle
The invention discloses a composite graphite cathode material and a preparation method thereof. The composite graphite cathode material comprises graphite particles a and b, wherein the graphite particles a are secondary artificial graphite particles formed by granulating, coating and bonding oil-based petroleum coke; the graphite particles b are secondary composite graphite particles, adopting core-shell structures, formed by removing impurities from small-particle diameter natural graphite balls, and spherodizing, coating and bonding the small-particle diameter natural graphite balls; the composite graphite material is prepared by mixing the graphite particles a and b, adding a binding agent, coating, bonding and performing high temperature carbonization. By compounding the two secondary graphite particles with different characteristics to prepare the composite graphite material, the capacity of graphite is improved and the problems that the graphite is poor in rate capability, poor in high-current charge and discharge performance, poor in compacting performance are solved.
Owner:DONGGUAN KAIJIN NEW ENERGY TECH
Graphite negative electrode material, lithium ion battery, preparation method and application
ActiveCN111384367AHigh tap densityIncrease battery capacityCell electrodesSecondary cellsGraphiteElectrical performance
The invention discloses a graphite negative electrode material, a lithium ion battery, a preparation method and application. The preparation method of the material comprises the steps of (1) crushingand shaping an artificial graphite raw material to prepare powder; 2, graphitizing the powder to obtain a material A; 3, screening the material A to obtain a material B; (4) carrying out surface coating modification treatment on a mixture of the material B and a binder to obtain a material C; and (5) carbonizing the material C to obtain the product. The graphite negative electrode material disclosed by the invention has relatively high tap density and relatively high battery capacity, various characteristics interact with one another, the comprehensive advantages of the material are improved,the characteristics of high capacity and high compaction are ensured, and the high-rate performance of the material is improved; and the preparation method facilitates improvement of the low-temperature electrical performance of the graphite negative electrode material of the lithium ion battery, and is simple in process, low in production cost and suitable for industrial production.
Owner:NINGBO SHANSHAN NEW MATERIAL TECH
Health-care massage cup device for breast enhancement
InactiveCN103054699ALess discomfortImprove comfortElectrotherapyVibration massageMassageBreasts skin
The invention discloses a health-care massage cup device for breast enhancement. The health-care massage cup device for breast enhancement is characterized by comprising a cup. The cup is provided with a water outlet. The left and right sides of the cup are provided with two water inlets respectively. Both the water inlets are connected with guide arc arms. Each guide arc arm extends along an arc surface of the cup from the corresponding water inlet. Each guide arc arm is provided with an inner water hole. Water is guided into the cup through the water inlets and the guide arc arms. The cup is further provided with a negative pressure air inlet. An atomizer and a vibrator are further disposed on the cup. The health-care massage cup device for breast enhancement meets the demands of size-variable breasts for breast enhancement and has the advantages that the device is simple in structure, convenient to use and safe and reliable, breast skin is beautified by atomizing action facilitating absorption of nutrients, blood circulation is promoted by hydraulic massage so that breasts are massaged and exercised effectively, and physical therapy, health caring and massaging are evidently effective.
Owner:广州宸新电子科技有限公司
Negative electrode active material
ActiveUS20130130101A1Cycle wellExcellent efficiency propertySilver accumulatorsFinal product manufactureEngineeringLarge capacity
A negative electrode active material and a secondary battery are provided. The negative electrode active material can be useful in maintaining excellent cell efficiency and lifespan while showing high-capacity properties, and the secondary battery may be manufactured using the negative electrode active material.
Owner:ILJIN ELECTRONICS
Cathode active material, non-aqueous electrolyte secondary battery, and method for producing cathode active material
InactiveUS20140038043A1Cycle wellLittle deteriorationElectrode thermal treatmentConductive materialSpace groupCharge and discharge
The object of the present invention is to provide a lithium transition metal silicate-type cathode active material that shows superior cycle characteristics, and shows little deterioration of discharge capacity even after repeated charge-and-discharge. In the present invention, a cathode active material that is expressed by the general formula Li2-yFe1-xMxSi1-yXyO4 (M=at least one transition metal selected from the group consisting of Mn, Ti, Cr, V, Ni, Co, Cu, Zn, Al, Ge, Zr, Mo, W; X=at least one element selected from the group consisting of Ti, Cr, V, Zr, Mo, W, P, B; 0≦x<1, 0≦y<0.25), and contains a lithium transition metal silicate, which comprises a mixed phase of an orthorhombic-type structure with a space group Pmn21 symmetry, and a monoclinic-type structure with a space group P21 / n symmetry, is provided.
Owner:FURUKAWA ELECTRIC CO LTD +1
Auto-igniter for biomass furnace
InactiveUS20090266278A1Cycle wellDomestic stoves or rangesIncandescent ignitionCombustion chamberIGNITOR
A biomass furnace (12) includes an auto-ignition system (28) for automatically resuming combustion of a biomass fuel (16) in response to sensed conditions. The auto-ignition system (28) raises the temperature of biomass fuel (16) in the combustion chamber (14), in the absence of flame or spark, by pumping superheated air into the combustion chamber (14) causing the fuel (16) to spontaneously combust. An auxiliary heat source (34) is located in a plenum (30) leading to the combustion chamber (14). A fan (32) forcibly moves air through the plenum (30), around the auxiliary heat source (34) and then into the combustion chamber (14) to initiate combustion in the absence of flame.
Owner:GREENVILLE MFG
Multifunctional health-care chair
The invention discloses a multifunctional health-care chair, and relates to a health-care chair. The multifunctional health-care chair aims at solving the problem that no instrument can exert a fundamental, health-care and auxiliary therapeutic effect on cardiovascular and cerebrovascular diseases so far. The lower end of a chair back is connected with the rear parts of two chair seat side plates by a chair back angle adjustment and limitation mechanism; two leg reciprocating motion devices are mounted at the upper end of the chair back, and are symmetrically arranged relative to a center line of a length direction of the chair back; two thigh root holding motion devices are mounted below the inside of the chair back, and are symmetrically arranged relative to the center line of the length direction of the chair back; and a hip jacking and horizontal reciprocating motion device is mounted in a chair seat. A unique motion mode of the multifunctional health-care chair is completely accomplished on the health-care chair, so that a user can achieve a therapeutic purpose during convenient and quick motion, and the multifunctional health-care chair is particularly suitable for fatigue recovery of the old and other people after the motion.
Owner:孙景玉
Method for making lithium iron phosphate cathode material
ActiveUS9133029B2Small sizeShorten heating timeLithium compoundsPhosphorus compoundsFerric hydroxideLithium iron phosphate
Owner:TSINGHUA UNIV +1
Lithium ion battery and electrolyte thereof
ActiveUS20150056500A1Improve electrochemical performanceCycle wellCell electrodesSecondary cellsOrganic solventLithium-ion battery
A lithium ion battery electrolyte, comprises lithium salt, a non-aqueous organic solvent and additives. The additives comprise an SEI film forming additive and furil and derivatives thereof, and the SEI film forming additive is at least one of vinylene carbonate, fluoroethylene carbonate and vinyl ethylene carbonate. Compared with the prior art, furil and derivatives thereof are added to the electrolyte as electrolyte additives in the present invention, to enhance the permeability for separator and the wettability for positive / negative electrode materials, facilitate the film forming reaction of the SEI film forming additive, and further improve the cycling performance of the lithium ion battery using the electrolyte. Furthermore, the furil and derivatives thereof have good chemical and electrochemical stability and free from decomposition reaction within the operating voltage range of the lithium ion battery, thereby imparting no negative effect upon battery performances.
Owner:CONTEMPORARY AMPEREX TECH CO
Method for making lithium iron phosphate cathode material
ActiveUS20140072496A1Small sizeShorten heating timePhosphatesPeroxides/peroxyhydrates/peroxyacids/superoxides/ozonidesFerric hydroxideHydrogen phosphate
A method for making lithium iron phosphate is provided. In the method, an alkali is reacted with a ferric salt in water to form a red colored ferric hydroxide precipitate in the water. The red colored ferric hydroxide precipitate is mixed with deionized water, organic solvent, and emulsifier to form an water-in-oil emulsion. The phosphoric acid solution and iron metal powder are added to the water-in-oil emulsion to form ferrous hydrogen phosphate. A lithium source is introduced to the water-in-oil emulsion and reacted with the ferrous hydrogen phosphate to form a precursor in the water-in-oil emulsion. The precursor is heated in a protective gas at a heating temperature in a range from about 600° C. to about 800° C. to form lithium iron phosphate.
Owner:TSINGHUA UNIV +1
Vehicular charger and battery cooling structure
InactiveCN102442202AImprove cooling effectPrevent overcoolingPropulsion coolingElectrical batteryMechanical engineering
The present invention provides a cooling structure which can perform most appropriate cooling on a charger or a battery that is carried on the vehicle corresponding to a use environment. The cooling structure is provided with the following components: a charger accommodating chamber (15) which accommodates the charger (12); a leading-in opening (18) which sucks outer air into the charger accommodating chamber (15); a battery accommodating chamber (16) which accommodates the battery (13) and is communicated with the charger accommodating chamber (15) through a communication part (17); and a discharge opening (19) which discharges air from the battery accommodating chamber (16). A sliding component (20) which supports the charger (12) is set to slidable in the charger accommodating chamber (15), and communication opening of the communication part (17) can be adjusted corresponding to the sliding position.
Owner:SHIN MEIWA IND CO LTD
Electrochromic material and method of manufacturing thereof
PendingUS20210269706A1Increased electronic and ionic conductivityHigh colorationTungsten oxides/hydroxidesHybrid capacitor electrodesElectrochromismIonic conductivity
Inorganic electrochromic materials and methods of manufacturing utilize a reactive PDC magnetron, where co-sputtering synthesis of electrochromic materials are performed: (1) directly from carbide targets; (2) from relevant transition metals and graphite target, as well as non-metal elements such as Si, Ge, P, B, etc.; (3) directly from composite targets (fine powder mixture of transition metals, non-metal elements and graphite powder). Sputtering may be performed instantly from 1 to 4 targets. For co-sputtering, a combination of gas mixtures may be used: Ar / O2 / N2, Ar / H2 / N2 / O2, Ar / NH3 / O2, Ar / CO / N2 / O2, Ar / CO / H2 / N2 / O2, Ar / CH4 / N2 / O2 and Ar / NH3 / CO / N2 / O2. This allows obtaining electrochromic materials with increased electronic and ionic conductivity, higher coloration and good cycling (lifetime). Moreover, different tints of blue as well as gray, black and brown colors neutral to the eye may be obtained. Sputtered electrochromic films were additionally improved by “thermo-splitting” pre-intercalated thin films. This allows achieving higher coloring and bleaching speed and better lifetime.
Owner:COMBERRY LLC
Non-aqueous electrolyte battery
InactiveUS20170092922A1Improve reliabilityIncrease productivityNon-aqueous electrolyte accumulatorsCell component detailsProduction ratePolyolefin
A nonaqueous electrolyte battery with a spirally coiled electrode body (10) including a cathode (11) having a cathode active material and an anode (12) having an anode active material which are coiled through a separator (13) in a battery can (1). As the separator (13), is used a separator having a plurality of laminated microporous films made of polyolefin which have different film layer thickness and average pore size. Specially, the separator (13) has three or more layers of microporous films made of polyolefin laminated. Further, the outermost layer of the separator is made of porous polypropylene and at least one layer of inner layers is made of porous polyethylene. The total of the thickness of layers made of porous polyethylene is located within a range of 40% to 84% as thick as the thickness of the separator. Thus, the temperature of a battery can be controlled, a reliability is enhanced and a productivity and cyclic characteristics are improved.
Owner:MURATA MFG CO LTD
Refrigerator and freezer
ActiveCN103575025AImprove qualityCycle simpleEvaporators/condensersRefrigeration devicesRadiationRefrigerated temperature
The invention provides a refrigerator and freezer which is not subjected to the main body of the refrigerator and freezer and improves the heat radiation efficiency of a condenser. The refrigerator and freezer comprises a mechanical chamber (19) arranged on the lower portion of the back of the main body, wherein at least one compressor (15) and a blower (17) for the mechanical chamber are arranged in the mechanical chamber; a pipe (25) arranged on the front lower portion of the mechanical chamber of the main body; and a metal wire type condenser (20) in the pipe, wherein the pipe (25) is provided with an air suction port (21) on the right side of the main body, an air inflow path (23) communicating the suction port and an air intake port (19a) of the mechanical chamber and being arranged on the metal wire type condenser (20), an air exhaust port (22) arranged on the front side of the main body and being adjacent to the air suction port (21), and an air flow path (24) communicating the air exhaust port and an air outlet port (19b) of the mechanical chamber.
Owner:MITSUBISHI ELECTRIC CORP
Composition for forming an active material composite, an active material composite, and a method for producing an active material composite
PendingUS20210384489A1Cycle wellGood rate characteristicsElectrode manufacturing processesSecondary cellsConductive materialsMetallic sulfide
Provided is a composition for forming an active material composite that gives an active material composite that can be used for an electrode in a lithium ion secondary battery and the like and that can improve battery cycle and rate characteristics.A composition for forming an active material composite comprising at least one active material selected from a metal, a metalloid, a metal alloy, a metal oxide, a metalloid oxide, a metal phosphate, a metal sulfide, and a metal nitride, a conductive material, a solvent, and at least one dispersant selected from a vinyl polymer comprising a pendant oxazoline group and a triarylamine-based hyperbranched polymer.
Owner:NISSAN CHEM IND LTD
Composition for lithium ion secondary battery positive electrode, lithium ion secondary battery positive electrode, and lithium ion secondary battery
PendingUS20220013777A1Increase energy densityExcellent cycle characteristicsSecondary cellsPositive electrodesLithium iron phosphateConductive materials
A composition for a positive electrode of a lithium ion secondary battery, the composition comprising:an active material capable of storing and extracting lithium ion; andan electric conductive material,wherein the active material is lithium iron phosphate,wherein the conductive material includes carbon black and carbon nanotube,wherein the carbon black has an average primary particle diameter of 39 nm or less, andwherein the carbon nanotube has an average diameter of 20 nm or less.
Owner:DENKA CO LTD
Acupuncture and physiotherapy massage device used for infantile paralysis and using method
InactiveCN108743284AGood flexibilityPromote blood circulationElectrotherapyPneumatic massageAcupunctureMassage
The invention discloses an acupuncture and physiotherapy massage device used for infantile paralysis and a using method. The acupuncture and physiotherapy massage device comprises a main engine and amassage body, wherein the main engine is connected with a catheter conductor bus, the catheter conductor bus is connected with a plurality of catheter conductors through a deconcentrator, and the other end of the catheter conductor bus is connected with the massage body; the massage body comprises an air bag layer and a magnetic vibration layer, massage magnetic blocks are arranged in the magneticvibration layer, and the massage magnetic blocks are connected through a conductor. Limbs are massaged by using air pressure, a massage function is achieved, the whole limb can be round wrapped 360 degrees, and the circular comprehensive massage function is achieved. Hot air pressure can improve the softness of the limbs, muscles are relaxed, and blood circulation of the limbs is promoted; a noiseless air pump generates sufficient pressure, the efficiency is high, the performance is stable, and the acupuncture and physiotherapy massage device can be widely applied.
Owner:凌静静
Health-care massage cup device for breast enhancement
The invention discloses a health-care massage cup device for breast enhancement. The health-care massage cup device for breast enhancement is characterized by comprising a cup. The cup is provided with a water outlet. The left and right sides of the cup are provided with two water inlets respectively. Both the water inlets are connected with guide arc arms. Each guide arc arm extends along an arc surface of the cup from the corresponding water inlet. Each guide arc arm is provided with an inner water hole. Water is guided into the cup through the water inlets and the guide arc arms. The cup is further provided with a negative pressure air inlet. An atomizer and a vibrator are further disposed on the cup. The health-care massage cup device for breast enhancement meets the demands of size-variable breasts for breast enhancement and has the advantages that the device is simple in structure, convenient to use and safe and reliable, breast skin is beautified by atomizing action facilitating absorption of nutrients, blood circulation is promoted by hydraulic massage so that breasts are massaged and exercised effectively, and physical therapy, health caring and massaging are evidently effective.
Owner:广州宸新电子科技有限公司
Hydrogen absorption alloy, hydrogen absorption alloy electrode, and secondary battery
ActiveUS20120315183A1Excellent propertyHigh retention rateHydrogenCell electrodesChemical compositionMaterials science
The present invention provides a hydrogen absorption alloy, which includes chemical composition represented by the general formula M1tM2uM3vCawMgxNiyM4z wherein 16×(d−1.870) / (d−r)≦v≦16×(d−1.860) / (d−r); 1.6≦w≦3.2; 4.1×5.1; 3.2≦(y+z) / (t+u+v+w+3.4; t+u+v+w+x+y+z=100; M1 is one or more elements selected from La, Pr, and Nd; M2 is one or more elements selected from V, Nb, Ta, Ti, Zr, and Hf; M3 is one or more elements selected from Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; M4 is one or more elements selected from Co, Mn, Al, Cu, Fe, Cr, and Zn; d is an average atomic radius of the elements selected as M1; and r is an average atomic radius of the elements selected as M3; and an electrode and a secondary battery using the same.
Owner:GS YUASA INT LTD
Device with airflow drying, airflow screening and ultraviolet sterilization functions
ActiveCN103727744ASimple equipment structureCycle wellGas current separationDrying solid materials with heatAirflowEngineering
The invention discloses a device with airflow drying, airflow screening and ultraviolet sterilization functions. According to the device, a draught fan (1), a circulation pipeline I (2), a dust remover (4), a screen drum (10), a regulating valve (5), an air inlet tee joint (6) and a circulation pipeline II (7) form a circulation passage. Under the effect of airflow generated by the draught fan (1), materials are in a fluidization state and carry out high-speed circular flowing in the circulation passage, water is vaporized in the high-speed circular flowing process, moisture is separated through the dust remover (4), and then the materials are dried. Screening of the materials is achieved through the screen drum (10). Sterilization is carried out through ultraviolet sterilizing lamps installed in the circulation passage. The device is simple in structure, good in circulation and high in output.
Owner:云南世纪华宝医药产业开发有限公司
A kind of graphite negative electrode material, lithium ion battery and its preparation method and application
ActiveCN111384367BHigh tap densityIncrease battery capacityCell electrodesSecondary cellsElectrical batteryGraphite
Owner:NINGBO SHANSHAN NEW MATERIAL TECH
Miniature air conditioner
InactiveCN111174330ACompact layoutReasonable layoutCondensate preventionLighting and heating apparatusMechanical engineeringWater pipe
The invention discloses a miniature air conditioner, and belongs to the field of air conditioners. The miniature air conditioner can be used for cooling clothes, and comprises a shell, a compressor, an evaporator, a condenser, a fan assembly, a water pump and a water tank, wherein the water tank is arranged on a first side plate of the shell; the water pump is arranged under the water tank; an inlet of the water pump is connected with a liquid outlet of the water tank; an outlet of the water pump communicates with the evaporator; the condenser is arranged on a bottom plate of the shell; the fan assembly is vertically arranged close to the condenser; the evaporator is arranged close to the condenser; and the compressor is arranged close to a third side plate opposite to the first side plate, and is fixedly connected with the bottom plate. According to the scheme, the component arrangement structure is compact, the space arrangement is reasonable, the whole volume of the product is small, and the weight of the miniature air conditioner is reduced as much as possible, so that the miniature air conditioner is convenient to carry; and through the arrangement of the water pump, a pipeline is shortened, a water pipe can be distributed conveniently, and the length of the pipeline is reduced, so that the cost is saved, and a waterway is facilitated to be circulated quickly.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Low-density composite ceramic ball for fluidized bed as well as preparation method and application of low-density composite ceramic ball
ActiveCN114773036ALow densityEasy to fluidizeFluidised bed heat exchangersComposite ceramicFluidized bed
The invention provides a low-density composite ceramic ball for a fluidized bed as well as a preparation method and application of the low-density composite ceramic ball. The preparation method of the composite ceramic ball is a sol-gel method and comprises the following steps: (1) preparing silicon-zirconium-aluminum sol; (2) molding and curing the silicon-zirconium-aluminum sol obtained in the step (1) to obtain gel beads, and performing aging treatment on the gel beads to form a precursor; and (3) carrying out heat treatment on the precursor in the step (2) to obtain the composite ceramic ball. The composite ceramic ball has the characteristics of high particle sphericity, moderate size, low density, high mechanical strength and long service life, and can be used in a fluidized bed.
Owner:TIANJIN UNIV
Sludge Drying System Combined with Solar Energy and Biogas Combustion Radiators
ActiveCN107477991BEasy to makeOvercome stabilityPhotovoltaic supportsDrying solid materialsCombustionSludge
Owner:ZHEJIANG UNIV OF TECH
Multifunctional health-care chair
The invention discloses a multifunctional health-care chair, and relates to a health-care chair. The multifunctional health-care chair aims at solving the problem that no instrument can exert a fundamental, health-care and auxiliary therapeutic effect on cardiovascular and cerebrovascular diseases so far. The lower end of a chair back is connected with the rear parts of two chair seat side plates by a chair back angle adjustment and limitation mechanism; two leg reciprocating motion devices are mounted at the upper end of the chair back, and are symmetrically arranged relative to a center line of a length direction of the chair back; two thigh root holding motion devices are mounted below the inside of the chair back, and are symmetrically arranged relative to the center line of the length direction of the chair back; and a hip jacking and horizontal reciprocating motion device is mounted in a chair seat. A unique motion mode of the multifunctional health-care chair is completely accomplished on the health-care chair, so that a user can achieve a therapeutic purpose during convenient and quick motion, and the multifunctional health-care chair is particularly suitable for fatigue recovery of the old and other people after the motion.
Owner:孙景玉
Hydrogen absorption alloy, hydrogen absorption alloy electrode, and secondary battery
ActiveUS9450238B2Maintain good propertiesImprove retentionHydrogenCell electrodesChemical compositionHydrogen
The present invention provides a hydrogen absorption alloy, which includes chemical composition represented by the general formula M1tM2uM3vCawMgxNiyM4z wherein 16×(d−1.870) / (d−r)≦v≦16×(d−1.860) / (d−r); 1.6≦w≦3.2; 4.1≦×≦5.1; 3.2≦(y+z) / (t+u+v+w+x)≦3.4; t +u+v+w+x+y+z=100; M1 is one or more elements selected from La, Pr, and Nd; M2 is one or more elements selected from V, Nb, Ta, Ti, Zr, and Hf; M3 is one or more elements selected from Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; M4 is one or more elements selected from Co, Mn, Al, Cu, Fe, Cr, and Zn; d is an average atomic radius of the elements selected as M1; and r is an average atomic radius of the elements selected as M3; and an electrode and a secondary battery using the same.
Owner:GS YUASA INT LTD
A kind of composite graphite negative electrode material and preparation method thereof
ActiveCN104609400BImprove cycle performanceGood high current charge and discharge performanceCarbon compoundsCell electrodesCarbonizationGraphite particle
The invention discloses a composite graphite cathode material and a preparation method thereof. The composite graphite cathode material comprises graphite particles a and b, wherein the graphite particles a are secondary artificial graphite particles formed by granulating, coating and bonding oil-based petroleum coke; the graphite particles b are secondary composite graphite particles, adopting core-shell structures, formed by removing impurities from small-particle diameter natural graphite balls, and spherodizing, coating and bonding the small-particle diameter natural graphite balls; the composite graphite material is prepared by mixing the graphite particles a and b, adding a binding agent, coating, bonding and performing high temperature carbonization. By compounding the two secondary graphite particles with different characteristics to prepare the composite graphite material, the capacity of graphite is improved and the problems that the graphite is poor in rate capability, poor in high-current charge and discharge performance, poor in compacting performance are solved.
Owner:DONGGUAN KAIJIN NEW ENERGY TECH
Electrolytes for lithium ion batteries
ActiveUS8795905B2Low costImprove powerOrganic electrolyte cellsSolid electrolyte cellsPhysical chemistryKetone
A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li2[B12F12] and LiBOB.
Owner:UCHICAGO ARGONNE LLC
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