102results about How to "Increase usable capacity" patented technology

A method for charging a lithium-ion secondary battery is so designed as to fully charge, with a voltage of the lithium-ion secondary battery being limited to a set voltage. Further, the method for charging the lithium-ion secondary battery is so designed that a degradation level of the lithium-ion secondary battery is detected, and when the degradation is advanced, the battery is fully charged with the set voltage being lowered.

A method and apparatus for providing network based load balancing of medical image data among two or more image archive systems is disclosed. A network element is employed to interface to a network carrying medical image data that may include tasks to be performed on the data. A network service associated with the network element monitors the current load or the available capacity of each of the image archive systems. When a task is received the network service determines the level of complexity of the task and compares the level of complexity to the current load or available capacity of each of the image archive systems. The network service selects the one of the image archive systems to perform the task that has the lowest current load or highest available capacity relative to the level of complexity of the received task.

Systems and methods for actively balancing battery cells are disclosed. In one example, a charge is supplied to different battery cells at different times during a battery discharge cycle. The method may reduce instantaneous current draw within a battery pack.

Rather than dropping packets, the invention throttles the rate that audio packets are output from a voice gateway by increasing the VoIP packet size. An encoder in the voice gateway encodes audio signals into audio packets. A processor in the voice gateway then switches the audio packets to the IP network. The invention throttles the rate that these VoIP packets are switched from the voice gateway by varying the number of samples of the incoming audio signals that are encoded into each packet payload. By increasing the packet payload size in the VoIP packets, the voice gateway can switch the same amount of audio data in fewer VoIP packets. Producing fewer VoIP packets increases the available capacity of the voice gateway for processing audio signals for more calls. In other words, encoding more audio data into each VoIP packet keeps the voice gateway from having to drop packets. If capacity in the voice gateway increases (the number of incoming calls decreases), the voice gateway can resume generating VoIP packets at the original packet size.

A toaster oven appliance including low-profile heating elements having a predetermined single-sided surface area calculated to provide uniform heating within the cooking chamber, facilitate cleaning and to increase its usable capacity is disclosed. Various alternative configurations of top, bottom, and side-mounted heating elements in combination with both fixed and vertically movable heating element embodiments are provided for use with standard and digital controls. The heating elements are positioned both internally and externally of the cooking chamber and are provided in unsheathed, plain-sheathed, and metallic-sheathed types for a given application of the present oven. In one embodiment the heating elements are constructed as removable plug-in modules for convenient cleaning and replacement. The present toaster oven further includes an optional forced convection fan to reduce cooking temperature and shorten cooking cycles. An optional rotisserie mechanism is also provided in conjunction with the aforementioned combinations of heating elements and heating controls.

High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The reaction assembly can be oriented substantially perpendicular to gravity during application of high pressure. Orienting the reaction assembly in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. Additionally, various high pressure apparatuses can be used. A split die design allows for particularly effective results and control of temperature and growth conditions for individual crystals.

The invention relates to a temperature control system of a power modular battery. The temperature control system is used for performing temperature control on the battery by a phase-change material and a heat-transfer fluid in an electromobile and is characterized by comprising a battery box, and a battery integration module which is arranged in the battery box; the battery box comprises a bottom plate, wing plates vertically connected with two ends of the bottom plate, a fluid temperature control device connected with the bottom plate, and phase-change temperature control devices at the inner sides of the wing plates; the bottom of the battery integration module is in contact with the bottom plate; and the side surface of the battery integration module is connected with the phase-change temperature control devices. Compared with the prior art, the temperature control system is high in energy utilization efficiency, simple in structure, good in applicability and the like.

The present invention relates to freestanding carbon nanotube paper comprising purified carbon nanotubes, where the purified carbon nanotubes form the freestanding carbon nanotube paper and carbon microparticles embedded in and / or present on a surface of the carbon nanotube paper. The invention also relates to a lithium ion battery, capacitor, supercapacitor, battery / capacitor, and fuel cell containing the freestanding carbon nanotube paper as an electrode. Also disclosed is a method of making a freestanding carbon nanotube paper. This method involves providing purified carbon nanotubes, contacting the purified carbon nanotubes with an organic solvent under conditions effective to form a dispersion comprising the purified carbon nanotubes. The dispersion is formed into a carbon nanotube paper and carbon microparticles are incorporated with the purified carbon nanotubes.

Rather than dropping packets, the invention throttles the rate that audio packets are output from a voice gateway by increasing the VoIP packet size. An encoder in the voice gateway encodes audio signals into audio packets. A processor in the voice gateway then switches the audio packets to the IP network. The invention throttles the rate that these VoIP packets are switched from the voice gateway by varying the number of samples of the incoming audio signals that are encoded into each packet payload. By increasing the packet payload size in the VoIP packets, the voice gateway can switch the same amount of audio data in fewer VoIP packets. Producing fewer VoIP packets increases the available capacity of the voice gateway for processing audio signals for more calls. In other words, encoding more audio data into each VoIP packet keeps the voice gateway from having to drop packets. If capacity in the voice gateway increases (the number of incoming calls decreases), the voice gateway can resume generating VoIP packets at the original packet size.

High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The reaction assembly can be oriented substantially perpendicular to gravity during application of high pressure. Orienting the reaction assembly in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. Additionally, various high pressure apparatuses can be used. A split die design allows for particularly effective results and control of temperature and growth conditions for individual crystals.

Systems and methods for actively balancing battery cells are disclosed. In one example, a charge is supplied to different battery cells at different times during a battery discharge cycle. The method may reduce instantaneous current draw within a battery pack.

The invention relates to a dynamically-reconfigurable battery energy storage system and method. The system comprises an energy storage system main circuit and a battery management system. The energy storage system main circuit has a charging and discharging interface circuit and an energy storage battery pack connected with the charging and discharging interface circuit. The energy storage battery pack is formed by connecting a plurality of single batteries in parallel. Each single battery is provided with a controllable switch Sn(n=1, 2,..., n) at the two ends thereof. In the energy storage battery pack formed by connecting the plurality of single batteries in parallel, the positive electrode end of each single battery is connected with the positive electrode end of an adjacent single battery through a controllable switch S'n (n = 1, 2,..., n), and the negative electrode end of each single battery is connected with the negative electrode end of the adjacent single battery through a controllable switch S "n (n = 1, 2,..., n). The battery management system is connected with the energy storage system main circuit, and is used for generating an energy storage battery pack reconfiguration decision according to electrical information of the single batteries and a power switching instruction, and controlling connection or disconnection of the controllable switch Sn, the controllable switch S'n and the controllable switch S"n to change topology of the energy storage battery pack.

The invention provides a battery pack active-passive mixed equalization architecture and a method thereof and belongs to the field of electric vehicles. The equilibrium architecture comprises an active equalization module, a passive equalization module and a main control module. The active equalization module comprises a DC / DC converter, and a multiplexer MUX. The passive equalization module comprises a battery control chip, and n switching devices connected in series with n power resistors. The main control module is in the form of an MCU. The MCU judges whether the voltage of each battery cell reaches a charging / discharging cut-off voltage or not and the voltage consistency of all battery cells, and then selects corresponding equalization manners. When the voltage of one battery cell is larger than a preset threshold, one switching device connected with the above battery cell is controlled to conduct the shunting process (namely the passive equalization process). When the voltage of one battery cell is smaller than the preset threshold, one part of the energy of a battery pack is transferred to the above battery cell by means of the DC / DC converter (namely the active equalization process).

The invention discloses an electric automobile dynamic equalizing charge method, solving the problem that inconsistent capacity and electric quantity and the like exist among batteries in battery packs when an existing pure electric automobile is charged. With the adoption of the electric automobile dynamic equalizing charge method, the batteries are equalized through designing three stages as follows: 40A current constant current precharge, 100A current constant current charge and reduction current charge, so that the inconsistence of the battery packs can be eliminated, the actual available capacity of the battery packs is improved, and the circulating service life of the battery packs is prolonged.

The invention discloses a battery pack electricity equalization circuit. The battery pack electricity equalization circuit comprises N-1 battery equalization unit circuits, N voltage sampling circuits, an auxiliary power module, a single-chip microcomputer control module and a driver module, wherein the Kth voltage sampling circuit and the (K+1)th voltage sampling circuit acquire a voltage at two ends of a Kth battery and a voltage at two ends of a (K+1)th battery, and transmit the voltages to the single-chip microcomputer control module; the single-chip microcomputer control module outputs a driver signal to the driver module according to the voltages; the driver signal output by the driver module is transmitted to the Kth battery equalization unit circuit; and the Kth battery equalization unit circuit controls the Kth battery to be discharged and the (K+1)th battery to be charged or controls the Kth battery to be charged and the (K+1)th battery to be discharged, so that electricity equalization of the Kth battery and the (K+1)th battery can be achieved, wherein K is greater than or equal to 1 and less than or equal to N-1. According to the equalization circuit and method, the equalization circuit is simple in structure, high in conversion efficiency, low in cost and high in reliability, and can expand the available capacity of a battery pack and prolong the service life of the battery pack.

A multiple stage battery system has significantly improved battery life in hybrid and electric motorized vehicle. At least two segments of battery packs are charged and discharged with two different battery management strategies, one handles transient energy needs and the other copes with cruise energy needs. The primary segment of battery are charged and discharged within a controlled State of Charge (SOC) range at a set point, it stores relatively less energy but supplies relative high impulse current during charge and discharge. The secondary segments have larger energy capacity, and are charged and discharged at constant current mode in deep cycling, near complete full charge and full discharge. These two segments of batteries could be different type of chemistry, i.e. NiMH, NiCD and Li-ion. This results in longer overall battery life and higher usable capacity for high power battery operations.

The invention discloses a management system and a method suitable for dynamically reconfiguring a battery energy storage system. The management system suitable for dynamically reconfiguring a batteryenergy storage system comprises an energy storage system composed of an energy storage battery pack and a power regulation system connected with the energy storage battery pack; and a battery management system respectively connected with the energy storage battery pack and a main controller; the power regulating system is also connected with the main controller. The main controller is configured to control a battery management system and a power regulation system cooperatively according to that current state of the power grid, the energy storage demand of the power grid and the current state of the energy storage battery pack, to complete the comprehensive decision of the work mode and the charging and discharging power of the energy storage battery pack, and to realize the automation of the maintenance of the energy storage battery pack.

The embodiment of the invention discloses an NAND flash memory management method, a host, an NAND flash memory reading and writing method, and an NAND flash memory controller. The NAND flash memory management method provided by the embodiment of the invention comprises the steps of acquiring bad block information of an NAND flash memory; determining a first binding block and a second binding block according to the bad block information, wherein mutually bound physical blocks in the first binding block are all good blocks, and mutually bound physical blocks in the second binding block comprise bad blocks; storing the information of the first binding block into a future binding block list, and storing the information of the good blocks in the second binding block into an independent physical block list in the NAND flash memory; and sending a storage request to the NAND flash memory, wherein the storage request comprises the future binding block list and the independent physical block list, thus allowing the NAND flash memory controller to store the future binding block list and the independent physical block list into the NAND flash memory, access the first binding block via a parallel reading-writing command, and access the good blocks in the second binding block via a standard reading-writing command. According to the method provided by the invention, both high speed and high capacity of the NAND flash memory can be achieved.

Disclosed is a lithium secondary battery comprising a cathode (C), an anode (A), a separator and an electrolyte, wherein the battery has a weight ratio (A / C) of anode active material (A) to cathode active material (C) per unit area of each electrode of between 0.44 and 0.70, and shows a charge cut-off voltage of between 4.35V and 4.6V. The high-voltage lithium secondary battery satisfies capacity balance by controlling the weight ratio (A / C) of anode active material (A) to cathode active material (C) per unit area of each electrode. Therefore, it is possible to significantly increase the available capacity and average discharge voltage of a battery using a lithium / cobalt-based cathode active material, which shows an available capacity of about 50% in a conventional 4.2V-battery . Additionally, it is possible to significantly improve battery safety under overcharge conditions, and thus to provide a high-voltage and high-capacity lithium secondary battery having excellent safety and long service life.

A data protection method of a storage device is provided. In the method, a system management interrupt program orders a hardware control unit to obtain a type and an address message of an error in a block in a first storage device, and stores the type and address message in a second storage device. An interrupt service routine (ISR) reads the type and address message of the error from the second storage device. The ISR orders an operating system to search for a block that may be accessed normally and not damaged in the first storage device, and sets the block as a reserved block. The ISR transmits the address message of the error to the OS, such that the OS copies the data in the block having the error to the reserved block, thereby increasing the available capacity of the storage device and improving the reliability of the computer.

The present invention discloses a bidirectional lossless equalization circuit of a series battery pack based on inductive energy storage, wherein, the series battery pack is divided into an upper part and a lower part, the upper half part battery is an upper battery pack, and the lower half part battery is a lower battery pack. Each battery connects an equalization branch circuit, a total equalization branch circuit bestrides and connects a power supply and the earth, and each equalization branch circuit connects a control circuit. The circuit can realize a dynamic equalization during the charge-discharge process of the battery pack, improve a non-equalization phenomenon of the series battery pack, improve an available capacity of the battery pack, reduce a repairing and replacing cycle of the series battery pack, and prolong a service life of the battery pack by controlling the on and off of an upper bridge and a low bridge MOSFET in the equalization branch circuit and the inductive energy storage. Thus, the circuit is suitable for a battery management system of an energy storage device of a hybrid electric vehicle, a pure electric vehicle, or a storage power station.

The invention provides flash memory equipment, a method and a system for managing a flash memory, which relate to the filed of semiconductor memory media. The method comprises the following steps: A,recording and configuring information according to the quality of a physical block of the flash memory, and establishing a binding table of the physical block and a recording table of a fragmentary block; and B, accessing the flash memory based on the binding table of the physical block and the recording table of the fragmentary block. The invention also provides the system for managing the flashmemory, which comprises a host computer, a control unit and the flash memory, wherein the host computer and the control unit are connected and perform data interaction; the control unit is used for accessing and controlling the flash memory; the host computer records and configures the information according to the quality of the physical block of the flash memory, and establishes the binding tableof the physical block and the recording table of the fragmentary block; and the control unit accesses the flash memory based on the binding table of the physical block and the recording table of thefragmentary block. The invention also provides the flash memory equipment. The adoption of the flash memory equipment, the method and the system for managing the flash memory can improve the availablecapacity of the flash memory.

The invention discloses a battery charging method. The method includes the following steps that: the current temperature of a battery and the electric quantity percentage of the battery are obtained; a battery characteristic relationship table which is established in advance in queried according to the current temperature of the battery and the electric quantity percentage of the battery, so that the inner resistance of the battery corresponding to the current temperature and electric quantity percentage of the battery can be obtained; the charging cut-off voltage of the battery is obtained through calculation according to the inner resistance of the battery, charging current and preset charging limiting voltage and based on preset calculation rules; the battery is charged according to the charging cut-off voltage; and when the electric quantity percentage of the battery changes in a preset time period, the charging cut-off voltage of the battery is re-calculated according to the above steps, and the battery is charged according to the re-calculated charging cut-off voltage. The invention also discloses a battery charging device. With the battery charging method and device of the invention adopted, with the safety of the battery ensured, the charging speed of the battery can be improved, and the available capacity of the battery can be improved.

The invention relates to a vehicle power battery state detection system comprising a battery detection unit which is used for multiple series-connected batteries to perform total voltage and total current detection and balance management and a battery control unit which uses a distributed structure and is formed in a way of using STM32F103ZET6 as a master controller. The battery detection unit is composed of an integrated chip LTC6804-2, and the isoSPI interface is connected with an ISOSPI isolation type communication interface LTC6820 through a single twisted pair so as to form LTC6804-2 multi-branch configuration, the battery control unit is enabled to realize isolation type SPI data communication, and voltage and temperature detection of a single battery can be completed. Balance management of a battery pack can be performed so that the working temperature of the single battery and the ambient temperature can be guaranteed, charge and discharge of high current can be limited and the system has great anti-interference capability.

The invention discloses a series connection battery pack two-way charging and discharging equalization circuit based on inductor energy storage. At least three battery single bodies are connected in series, at most seven battery single bodies are connected in series, a series connection battery pack is divided into an upper portion and a lower portion, the connection point of the upper portion and the lower portion is N, the upper portion includes battery single bodies from the positive end of the series connection battery pack to the connection point N, the lower portion includes the battery single bodies from the connection point N to the negative end of the series connection battery pack, m is an odd number, n is an even number larger than or equal to 2, m=n-1 or m=n+1, and m <=7. An equalization sub circuit connected with odd batteries is an odd equalization circuit, and an equalization sub circuit connected with even batteries is an even equalization circuit. By means of the circuit, overcharging and overdischarging are avoided in the charging and discharging process, the series connection battery pack unequalization is avoided, the battery pack available capacity is improved, the maintenance and replacement period of the series connection battery pack is reduced, the service life of the battery pack is prolonged, and the cost of hybrid electric vehicles, electric automobiles and energy storage power stations is reduced.

The invention relates to a vehicle thermal management system and a vehicle. The vehicle heat management system comprises an air conditioning system, a battery and electric drive heat management systemand a heat exchanger. The heat exchanger is simultaneously arranged in the air conditioning system and the battery and electric drive heat management system; the battery and electric drive heat management system comprises a first cooling liquid flow path, a second cooling liquid flow path and a four-way valve, a heat exchanger, a power battery and a first water pump are arranged on the first cooling liquid flow path, one end of the first cooling liquid flow path is connected with a port A of the four-way valve, and the other end of the first cooling liquid flow path is connected with a port Bof the four-way valve; an electric controller, a charger and a second water pump are arranged on the second cooling liquid flow path, one end of the second cooling liquid flow path is connected witha port C of the four-way valve, and the other end of the second cooling liquid flow path is connected with a port D of the four-way valve. Thus, when the port A and the port C of the four-way valve are connected and the port B and the port D of the four-way valve are connected, heat generated by the charger and the electric controller can heat the power battery, heat dissipation of the charger andthe electric controller and heating of the power battery are met at the same time, and the energy utilization rate of the whole vehicle is increased.

A method of preparing an amorphous film of lithiated metal sulfide or oxysulfide of formula LiαM(O1-βSβ)γ using a lithiated target material:M being advantageously selected from the group comprising Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, Zr, Nb, Mo, Ag, Cd, In, Sn, Sb, Ta, W, Pb, Bi, and mixtures thereof; andα≧0.5;1≧β≧⅔;2≧α / γ≧⅓.