BYD Co. Ltd Patent applications |
Patent application number | Title | Published |
20130164581 | SINGLE CELL AND POWER BATTERY PACK COMPRISING THE SAME - A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board sealing an open end of the shell; an electrode core disposed inside the shell; an electrode terminal extending through the cover board, the electrode terminal comprising a first end portion connected with the electrode core inside the shell, a second end portion protruding outside the shell, and a middle portion between the first end portion and the second end portion; and an insulating member disposed between the electrode terminal and the cover board for insulating the electrode terminal; wherein each of the first end portion and the second end portion comprises a plurality of flexible conductive members. | 06-27-2013 |
20120168976 | MICROPOROUS POLYOLEFIN AND METHOD OF PRODUCING THE SAME - A microporous film comprises a first component comprising a super high molecular weight polyolefin resin, wherein the weight-average molecular weight of the super high molecular weight polyolefin is about 1×10 | 07-05-2012 |
20120015505 | METHOD AND DEVICE FOR PREPARING COMPOUND SEMICONDUCTOR FILM - The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency. | 01-19-2012 |
20110281147 | INSULATING RING AND LITHIUM ION BATTERY HAVING THE SAME - The present invention discloses an insulating ring for a lithium ion battery, comprising: a circular ring body; a core rod positioning member configured at a central part of the circular ring body for positioning a core rod of the lithium ion 5 battery; and at least a tab hole configured to be adjacent to the core rod positioning member through which a tab of the core rod is penetratable. Further, a lithium ion battery having the insulating ring is also disclosed. With the present invention, battery safety performance is enhanced greatly. | 11-17-2011 |
20110223491 | LITHIUM TITANATE COMPOSITE MATERIAL, PREPARATION METHOD THEREOF, NEGATIVE ACTIVE SUBSTANCE AND LITHIUM ION SECONDARY BATTERY CONTAINING THE SAME - Provided is a composite material having spinel structured lithium titanate, wherein the lithium titanate has a microcrystalline grain diameter of about 36-43 nm and an average particle diameter of about 1-3 μm. The composite material comprises a small amount of TiO | 09-15-2011 |
20110130922 | ELECTRIC POWER STEERING SYSTEM - An electric power steering system includes a power supply, a driving motor for supplying mechanical power, and an electric power steering controller configured to control the driving motor and provide power to the driving motor. A boosting module is operatively coupled between the power supply and the electric power steering controller and is configured to boost a power output of the power supply, and supply the boosted power output to the electric power steering controller so that the driving motor receives a boosted power level. | 06-02-2011 |
20110126904 | BACKPLANE FOR SOLAR CELL AND SOLAR CELL HAVING THE SAME - A solar cell and a backplane for a solar cell, where the backplane comprises a metal substrate having first and second opposing major surfaces, and an insulating layer on at least one major surface of the metal substrate. The insulating layer comprises a resin selected from the group consisting of phenolic resins, epoxy resins, amino resins, and combinations thereof. | 06-02-2011 |
20110073178 | ELECTRICALLY CONDUCTIVE PASTE, SOLAR CELL CONTAINING SAME AND METHOD - An electrically conductive paste for a solar cell comprises a metal powder, an inorganic adhesive, an aqueous adhesive and an auxiliary agent. The aqueous adhesive comprises a water-soluble polymer. | 03-31-2011 |
20100330418 | POLYMER ELECTROLYTE, BATTERY AND METHOD - A polymer electrolyte comprises a first polymeric matrix, a second polymeric matrix, and a lithium salt. The first polymeric matrix comprises pores. The second polymeric matrix is disposed in at least some of the pores of the first polymeric matrix. The lithium salt is disposed in at least some of the pores of the first polymeric matrix. | 12-30-2010 |
20100320069 | KEY-PRESS STRUCTURE AND A METHOD FOR MAKING THE SAME - A key-press structure comprises a transparent substrate, a plurality of characters formed inside the transparent substrate thereby forming a plurality of keys, and a touch control member disposed on the surface of the transparent substrate such that each of the keys is operable to sense a touch event. | 12-23-2010 |
20100304208 | Metal-Resin Composite and Method - A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, and a second coating layer on the first coating layer. The first coating layer fills the concavities and covers the surface of the substrate. | 12-02-2010 |
20100181125 | HYBRID POWER OUTPUT SYSTEM - A hybrid power output system for outputting the power to the wheel driving shaft, comprising an engine ( | 07-22-2010 |
20100167085 | Electroplating Method and Electroplated Product - A method for electroplating a substrate having an aluminum alloy surface comprises: applying a zinc layer onto the aluminum alloy surface; electroplating a first copper layer onto the zinc layer from an alkaline copper electroplating solution; electroplating a second copper layer onto the first copper layer from an acid copper electroplating solution; electroplating a Cu—Sn alloy layer onto the second copper layer from a Cu—Sn electroplating solution; and electroplating a chromium layer onto the Cu—Sn alloy layer from a trivalent chromium solution. The alkaline copper electroplating solution is substantially free of cyanide ion. | 07-01-2010 |
20100129704 | Silicon Negative Electrode, Lithium Ion Battery, Method of Preparing the Same - A silicon negative electrode comprises a current collector coated with a negative electrode material. The negative electrode material comprises a silicon negative active material and a binder. The binder comprises a first polymer, a second polymer, and a third polymer. The first polymer comprises a fluorine-containing monomer. The second polymer comprises a monomer selected from the group consisting of acrylonitrile, methacrylonitrile, acrylates, methacrylates, and combinations thereof. The third polymer is selected from the group consisting of polyvinylpyrrolidone, polyalkylidene glycol, polyacrylamide, polyethylene glycol, and combinations thereof. | 05-27-2010 |
20100051362 | HYBRID POWER DRIVE SYSTEM AND DRIVE METHOD - A hybrid power drive system includes an engine, a first motor, a first clutch operatively coupled between the engine and the first motor, a first decelerating mechanism having an input portion operatively coupled between the first clutch and the first motor, where the input portion is configured to receive rotational power from the first motor and/or the engine. The first decelerating mechanism has an output portion operative to drive at least one first wheel, and a second motor is operatively coupled to at least one second wheel through a second decelerating mechanism. An energy storage device is coupled separately to the first motor and to the second motor. The engine, the first clutch and the first motor are connected in sequence, and the second decelerating mechanism and the at least one second wheel are connected in sequence. Various combinations of operating modes are provided to meet energy efficiency requirements and user power demands. | 03-04-2010 |
20100028779 | Porous Polyimide Membrane, Battery Separator, Battery, and Method - A porous polyimide membrane is provided. The volume of pores with a diameter of between about 50 and about 300 nm is more than about 40%, preferably more than 75% of the total pore volume in the membrane. A method for preparing a porous polyimide membrane comprises: preparing a porous polyamide acid membrane; stretching the porous polyamide acid membrane to form a stretched membrane; and imidizing the stretched membrane to form a porous polyimide membrane. The volume of the pores with a diameter of about 50-300 nm is more than about 40%, preferably more than 75% of the total pore volume in the porous polyimide membrane. | 02-04-2010 |
20100021810 | END COVER ASSEMBLY FOR AN ELECTROCHEMICAL CELL - An end cover assembly for a battery comprises a cover plate; a scabbard mounted on the cover plate; a connector; and a sealing material. The cover plate comprises an opening. The scabbard comprises an interior channel. The opening is in communication with the channel. The connector is disposed in the interior channel and protrudes from the scabbard. The sealing material is disposed in the interior channel and extends beyond the upper portion of the scabbard and wraps around the outside of the scabbard to form a protective flange. | 01-28-2010 |
20090321161 | HYBRID POWER SYSTEM AND ITS CONTROLLING METHOD - A hybrid power system includes an engine, a clutch, a transmission, a motor and an energy storage device. The motor is connected to the energy storage device and the engine is connected to the input shaft of the transmission by the clutch. The output shaft of the transmission is operatively coupled with the output shaft of the motor to provide a coupled power output. | 12-31-2009 |
20090311607 | BATTERY ELECTRODE SHEET - A battery electrode sheet comprises a conductive substrate and an electrode material coated on at least a portion of the conductive substrate. The coated portion of the conductive substrate comprises a first region, a second region, and a transition region between the first and second regions. The electrode material on the first region has a first thickness; and the electrode material on the second region has a second thickness, which is smaller than the first thickness. The electrode material on the transition region has a thickness that decreases between the first and second regions. | 12-17-2009 |
20090298634 | HYBRID POWER DRIVING SYSTEM - A hybrid power driving system includes a planetary gear mechanism having a first rotating component, a second rotating component, and a third rotating component. The system also includes an electric motor operatively coupled to the first rotating component, a clutch, an internal-combustion engine operatively coupled to the first rotating component by the clutch, and a brake operatively coupled to the second rotating component and configured to control the second rotating component in a locked position or in an unlocked position. The third rotating component is operatively coupled to an output end to provide rotational power. | 12-03-2009 |
20090171523 | Hybrid Vehicle Having Multi-Mode Controller - A control system for a hybrid vehicle controls the various operating modes of the hybrid vehicle. Operating modes of the hybrid vehicle include an electric-only power mode, a series hybrid mode, a series hybrid dual-power mode, and a parallel hybrid tri-power mode. The control system selects one of the operating modes for the hybrid vehicle based on one or more inputs and comparisons. Examples of inputs for the control system include a gear-mode, a present battery storage capacity, a present velocity of the hybrid vehicle, and the previous operating mode of the hybrid power system. The control system may also take into account whether a user has selected the electric-only power mode. The control system may also control the operations of one or more components of the hybrid vehicle while operating in one of the operating modes. | 07-02-2009 |
20090171522 | Hybrid Vehicle Having Multi-Mode Controller - A hybrid vehicle includes a multi-mode power system. The power system includes a battery, an electrical power input, a first motor/generator, a second motor/generator, and a clutch. A first operating mode is defined by deactivation of the internal combustion engine and the operation of the vehicle by electrical force provided from the battery to the second motor/generator. In a second operating mode, activation of the internal combustion engine generates electrical power by providing rotational force to the first motor/generator. In a third operating mode, engagement of the clutch couples the internal combustion engine and the second motor/generator to provide rotational force to the wheels. In a fourth operating mode, engagement of the clutch couples the internal combustion engine with the second motor/generator, and the first motor/generator further provides rotational force to the wheels. | 07-02-2009 |
20090166123 | Hybrid Vehicle Having Torsional Coupling Between Engine Assembly And Motor-Generator - A hybrid vehicle has a power system with a torsional coupling. The power system includes a battery system for receiving, storing and providing electrical power, an internal combustion engine configured to provide rotational power through a flywheel, a first motor-generator, a second motor-generator, a control system, and a torsional coupling. The torsional coupling may absorb rotational shock caused by angular or rotational speed differences between the engine and the first motor-generator. The torsional coupling includes a driven plate assembly, a cover assembly and an interconnecting plate assembly. The interconnecting plate assembly may include a plurality of shock absorbing elements that absorb shock and vibration between the engine and the motor-generator. | 07-02-2009 |
20090166122 | Hybrid Vehicle Having Power Assembly Arranged Transversely In Engine Compartment - A hybrid vehicle includes two front wheels, two rear wheels, an internal combustion engine, a first motor/generator, and a second motor/generator. The first motor/generator may be rotatably coupled to the internal combustion engine, and the second motor/generator may be rotatably coupled to at least one wheel of the hybrid vehicle. The first motor/generator, the second motor/generator and a gear transmission are housed within the engine compartment and are located between two front wheels and arranged in a substantially linear manner. The first motor/generator, the second motor/generator, and the gear transmission are located substantially above a centerline of the front wheels of the vehicle | 07-02-2009 |
20090166113 | Hybrid Vehicle Having Engagable Clutch Assembly Coupled Between Engine And Traction Motor - A hybrid vehicle includes a battery system, an internal combustion engine, a first motor/generator, a second motor/generator, and an engageable clutch assembly. The engageable clutch assembly is disposed between the internal combustion engine and the first motor/generator. When engaged, the engageable clutch assembly couples the rotor spindle of the second motor/generator with the hollow rotor shaft of the first motor/generator. The engageable clutch assembly may also operate in a first mechanical mode that selectively engages and disengages the internal combustion engine from the second motor/generator, or operate in a second mechanical mode that dampens shock between the internal combustion engine and the first motor/generator when the international combustion engine operates at a rotational speed that is different than a rotational of the first motor/generator. | 07-02-2009 |