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14results about How to "Increase battery capacity" patented technology
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Cover plate assembly, battery monomer, battery pack and electric equipment
ActiveCN224204279UImprove insulation performanceAvoid contact short circuit problemsCell sealing materialsElectrical batteryElectrical connection
The embodiment of the utility model provides a cover plate assembly, a battery monomer, a battery pack and electric equipment. The cover plate assembly comprises a cover plate, an electric connecting piece and a ceramic insulating piece, the cover plate is used for covering the opening of the shell and is provided with a first side close to the center of the shell; the electric connecting piece penetrates through the cover plate and is used for being electrically connected with the electrode assembly; the ceramic insulating piece is located on the first side and arranged between the electric connecting piece and the cover plate so as to achieve insulation of the electric connecting piece and the cover plate. According to the cover plate assembly provided by the embodiment of the invention, the problem of short circuit caused by contact between the electric connecting piece and the cover plate can be avoided, and the use safety of the battery pack can be improved; and moreover, the occupation of the external space of the battery monomers can be reduced, and the battery capacity of the battery pack can be further improved.
Owner:BYD CO LTD
Aqueous zinc metal battery electrolyte and applications thereof
ActiveCN115548469BAlleviate hydrogen evolution reactionImprove deposition/stripping efficiencySecondary cellsAcid electrolytesDischarge efficiencyElectrolytic agent
The application discloses a kind of aqueous zinc metal battery electrolyte and application thereof, belong to new energy battery field.The electrolyte of the application is composed of soluble zinc salt, succinic acid and water, the concentration of the soluble zinc salt is 1~5mol / kg, the concentration of the succinic acid is 0.01~0.5mol / kg.The aqueous zinc metal battery electrolyte provided by the application first uses succinic acid as electrolyte additive, which has strong adsorption and desolvation between zinc ions in electrolyte Dual role, both solve the hydrogen evolution, corrosion, passivation and dendrite and other problems existing in zinc negative electrode in aqueous electrolyte, also improve the charge-discharge efficiency of battery, battery capacity and electrochemical performance such as cycle stability.
Owner:HUZHOU COLLEGE
Pre-sodium hard carbon material as well as preparation method and application thereof
PendingCN121894637AImprove the first Coulombic efficiencyImprove cycle performanceSecondary cellsCarbon preparation/purificationO-Phosphoric AcidElectrical battery
The invention relates to the technical field of electrochemical materials, in particular to a pre-sodium hard carbon material and a preparation method and application thereof. The pre-sodium modification method for preparing the pre-sodium modification hard carbon material comprises the following steps: (1) mixing a carbon source, amino acid and phosphoric acid, and carrying out pre-carbonization reaction to obtain a doped carbon source; (2) providing dispersion liquid containing the doped carbon source, a surfactant and weak base, and introducing organic sodium salt to carry out sodium pre-modification reaction to obtain a hard carbon precursor; and (3) carrying out carbonization reaction on the hard carbon precursor to obtain the pre-sodium hard carbon material. The pre-sodium treatment method is simple to operate and high in safety, the obtained pre-sodium treatment hard carbon material is excellent in performance, and the problems that a sodium ion battery is low in energy density and poor in cycle performance can be effectively solved.
Owner:GUANGDONG HAISIDA NAXING TECHNOLOGY CO LTD
A modified iron phosphate material, a lithium iron phosphate material, and a preparation method and application thereof
ActiveCN118302383Bfast transmissionShorten the transmission pathTransportation and packagingCell electrodesLithium oxideLithium iron phosphate
The application discloses a modified iron phosphate material, a lithium iron phosphate material and a preparation method and application thereof, and belongs to the technical field of lithium iron phosphate materials. The modified iron phosphate material is in a sheet shape as a whole, and the modified iron phosphate material comprises zirconium phosphate with a sheet structure, the zirconium phosphate is loaded with elemental silver and lithium oxide between layers, and the outer surface of the zirconium phosphate is formed with iron phosphate. The modified iron phosphate material can be further prepared into the lithium iron phosphate material and applied to a battery, so that the rate performance, coulomb efficiency, capacity and conductivity of the battery can be improved. The preparation method of the modified iron phosphate material and the lithium iron phosphate material is simple and can be used for industrial production.
Owner:GUANGDONG BRUNP RECYCLING TECH CO LTD +1
Battery and electric device
ActiveCN224190959UExtended service lifesupport balanceSecondary cells manufactureCell component detailsElectrical batteryStructural engineering
Owner:SVOLT ENERGY TECHNOLOGY CO LTD
Negative electrode active material and method for producing same
InactiveEP4379863A4Increase battery capacityImprove initial efficiencyElectrode thermal treatmentCarbon compoundsChemistryComposite material
The present invention is a negative electrode active material including negative electrode active material particles, wherein the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, and the silicon oxide particles contain Li2SiO3, and a Si2p spectrum obtained by XPS analysis has a strongest peak A near 102 eV, a second strongest peak B corresponding to a low-valent Si compound having a valency of any one of 1 to 3 near 100 eV, and a peak C of Si: 0-valency obtained near 99 eV having an intensity of less than or equal to half of an intensity of the peak A. This provides a negative electrode active material that can increase a battery capacity with improvement of initial efficiency and that can achieve sufficient battery cycle characteristics.
Owner:SHIN ETSU CHEMICAL CO LTD
A high-precision laminated battery
ActiveCN224683134UIncrease the setting spaceThe edge banding width is controllableElectrical batteryStructural engineering
The utility model discloses a kind of high bag-making precision lamination batteries, relate to lamination battery field.In the utility model, by abandoning the reference positioning between diaphragm and first pole piece when diaphragm bag is made, but the normal of positioning top edge of diaphragm bag and the first pole handle extension direction is included angle inclination, by being respectively provided with first diaphragm edge sealing in the two sides of first pole handle, second diaphragm edge sealing is respectively set in the top and bottom of current collector, third diaphragm edge sealing is respectively provided with in the left and right sides of current collector, and the width of first diaphragm edge sealing, second diaphragm edge sealing and third diaphragm edge sealing is configured to be equal, to realize the edge sealing width controllable between diaphragm bag edge and first pole piece, realize bag-making edge sealing constraint in safety requirement range, improve the setting space of pole piece, improve battery energy density and terminal product endurance capability.
Owner:SHENZHEN GREPOW BATTERY CO LTD
Negative electrode and method for producing same
InactiveEP4379834A4Increase battery capacityImprove initial efficiencyElectrode thermal treatmentNegative electrodes
The present invention is a negative electrode including negative electrode active material particles, wherein the negative electrode is charged and discharged at least once, the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, and the silicon oxide particles contain Li2SiO3, and in an O1s bonding energy obtained by XPS analysis on a particle inside, an intensity of a peak A obtained near 529.5 eV and an intensity of a peak B obtained near 532.5 eV have a relationship of (intensity of peak A) ≤ (intensity of peak B). This provides a negative electrode that can increase a battery capacity with improvement of initial efficiency and that can achieve sufficient battery cycle characteristics.
Owner:SHIN ETSU CHEMICAL CO LTD
Negative electrode and method for producing negative electrode
InactiveEP4391110A4Increase battery capacityincrease spaceAssembling battery machinesElectrode carriers/collectorsEngineeringMaterials science
The present invention provides a negative electrode including a negative electrode current collector having a surface roughened; and a negative electrode active material layer provided on the negative electrode current collector. The negative electrode active material layer contains negative electrode active material particles including a compound of lithium, silicon, and oxygen, and a ratio, O / Si, of the oxygen to the silicon, constituting the negative electrode active material particles is within a range of 0.8 or more to 1.2 or less. The negative electrode active material layer has a multilayer structure composed of two or more layers, and each layer of the multilayer structure of the negative electrode active material layer has, on an upper portion, a layer containing a quadrivalent silicon compound containing at least one or more of lithium and oxygen. This can provide the negative electrode capable of significantly increasing capacity while maintaining excellent battery characteristics and a method to produce the negative electrode that can produce such a negative electrode.
Owner:SHIN ETSU CHEMICAL CO LTD
Display module and electronic device
ActiveCN116416857BFlexible space designReduce the size occupied
Embodiments of the present application provide a display module and an electronic device, the display module comprising: a display panel and a flat cable circuit board; the display panel comprising a display part, a bending part and an encapsulation part, the encapsulation part being bent to the back side of the light emitting surface of the display part through the bending part, the encapsulation part comprising a first end and a second end, the first end being the end of the encapsulation part away from the bending part, and the second end being the end of the encapsulation part connected with the bending part; the flat cable circuit board being a multi-layer printed circuit board or a multi-layer flexible circuit board, the flat cable circuit board being arranged on the side of the encapsulation part away from the display part, the flat cable circuit board being located between the first end and the second end, a first binding area being arranged on the encapsulation part, the first binding area being located at the first end, and part of the area of the flat cable circuit board being bound in the first binding area. Embodiments of the present application provide a display module and an electronic device, which can improve the battery capacity.
Owner:HUAWEI TECH CO LTD
Sodium ferric phosphate pyrophosphate precursor material and preparation method thereof, sodium ferric phosphate pyrophosphate material and preparation method thereof, and sodium ion battery
PendingCN121800164AImprove structural stabilityImprove conductivityCarbon compoundsCell electrodesElectrical batteryPhosphate
The invention provides a sodium ferric phosphate pyrophosphate precursor material and a preparation method thereof, a sodium ferric phosphate pyrophosphate material and a preparation method thereof, and a sodium ion battery, the molecular formula of the sodium ferric phosphate pyrophosphate precursor material is Na < 2 + 2x > Fe < 3-x > (P2O7) 2, and x is greater than or equal to 0 and less than or equal to 1. According to the sodium ferric phosphate pyrophosphate precursor material provided by the invention, the content of the iron element and the content of the sodium element in the sodium ferric phosphate pyrophosphate precursor material are limited, so that the content of the iron element in the precursor material is flexibly and accurately controlled. Due to the limitation of the parameters, the ferric sodium pyrophosphate precursor material has excellent structural stability, conductivity and electrochemical performance. The sodium ferric phosphate pyrophosphate precursor material is used for preparing a sodium ferric phosphate pyrophosphate material and a sodium ion battery, and the battery capacity and the cycle stability of the sodium ion battery can be effectively improved.
Owner:SHANGHAI XUANYI NEW ENERGY DEV CO LTD
Negative electrode
InactiveEP4386896A4Increase battery capacityreduce excess spaceElectrode carriers/collectorsNegative electrodes
The present invention is a negative electrode including a negative electrode current collector with a surface having roughened surface, and a negative electrode active material layer provided on the negative electrode current collector, in which the negative electrode active material layer has a multilayer structure, in the multilayer structure, a central portion of each layer in a thickness direction includes a composite compound containing silicon, lithium, and oxygen, a plurality of first regions having a lower amount of oxygen, and a plurality of second regions having a higher amount of oxygen than the first regions, and an average width of each of a maximum width in the first regions and a maximum width in the second regions is 10 nm or less. Thereby the negative electrode that can significantly increase a capacity while maintaining excellent battery characteristics can be provided.
Owner:SHIN ETSU CHEMICAL CO LTD
Positive electrode active material comprising sulfur-carbon composite and lithium-sulfur secondary battery comprising the same
The present disclosure relates to a positive electrode active material for a lithium-sulfur battery, comprising: a sulfur-carbon composite, wherein the sulfur-carbon composite comprises a porous carbon material and a sulfur-based material, the sulfur-based material is located on at least a part of the surface of the porous carbon material, wherein the sulfur-based material comprises at least one of sulfur (Ss) or a sulfur compound; and wherein a sum of particle size D10 and particle size D90 of the porous carbon material is 60 µm or less, or wherein the porous carbon material has a broadness factor (BF) of 7 or less, wherein the broadness factor is the ratio the particle size D90 to the particle size D10 of the porous carbon material. Furthermore, to positive electrode containing the positive electrode active material, as well as lithium-sulfur battery containing the same.
Owner:LG ENERGY SOLUTION LTD
A long-endurance underwater camera waterproof housing
ActiveCN224418878UIncrease battery capacityIncreased flexibility of useClassical mechanicsStructural engineering
This utility model discloses a waterproof housing for a long-endurance underwater camera, comprising: a waterproof housing, a transparent glass inlaid on the front surface of the waterproof housing, a camera body movably connected to the inner surface of the waterproof housing, a screw fixedly connected to the inner surface of the waterproof housing, a pressure plate sleeved on the outer wall of the screw, the pressure plate movably connected to the camera body, four limiting brackets fixedly connected to the rear surface of the pressure plate, and an integrated battery pack movably connected between the four limiting brackets. These components enable the camera to operate continuously for a longer period. By rotating the rotating ring, the traction groove moves the traction rod, which in turn causes the hook to move and loosen the clamping plate by driving the slot. At this point, the integrated battery pack can be easily removed from between the limiting brackets and the clamping plate for replacement. This design eliminates the need for complex tools and cumbersome operating procedures, improving the flexibility and efficiency of the equipment.
Owner:TIANJIN PENGTIAN INTELLIGENT TECH CO LTD