2226results about "Secondary cells testing" patented technology

A trade-in battery system for purchasing used secondary batteries and selling the charged used secondary batteries, wherein the trade-in battery system comprises a purchasing step, a pre-storage deterioration inspection step, a charging step, a storage step, a packaging step, and a selling step.

A electrical energy storage device may experience quiescent periods of operation. A method is disclosed effective to account for the effects that temperature during quiescent periods has upon the electrical energy storage device.

Disclosed herein are battery-powered devices capable of authenticating batteries. In one embodiment, a device comprises: a battery, an excitation source, a photodetector, and an operating system. The device is capable of at least partially being powered by the battery. The excitation source is capable of producing radiation and disposed so that the radiation can contact a surface of the battery. The photodetector is capable of detecting radiation from the battery. The operating system is capable of determining whether or not the battery is an authentic battery for that device.

A method for manufacturing a battery assembly provided by the present invention includes a step of measuring a stacking direction length of a stacked body including a predetermined number of unit cells (12) constituting a battery assembly (10) and arranged in the stacking direction; and a step of bundling a body (20) to be bundled that includes the stacked body. Here, the body to be bundled is provided with length adjusting means (40) for converging a spread in stacking direction length. The bundling step is implemented by setting the length adjusting means according to the stacking direction length of the stacked body, so that a length of the battery assembly in the stacking direction is a stipulated length (LT) and a bundling pressure of the body to be bundled is a stipulated pressure.

A hybrid vehicle battery information display device 1 includes a battery service life display unit 2 which estimates a degree of battery degradation with respect to a useful life of a battery 16 from data on vehicle travel and the like based on battery degradation data measured from a vehicle travel test 19, to display information on a battery service life; a travel fuel consumption display unit 3 which evaluates, from the vehicle travel test 19, a degradation degree of actual travel fuel consumption data due to the battery degradation for each drive pattern based on test travel fuel consumption data set for each drive pattern, to display information on a travel fuel consumption; and a display control unit 4 which controls the display of information on the battery service life.

The present invention concerns a battery monitoring system for monitoring a plurality of batteries serially connected to form a string. The battery monitoring system includes a number of probes connected to at least a portion of the string, a daisy chain bus having a select channel for serially interconnecting the probes, the bus having other, parallel channels for data communication and power, and a system server. The probes each have a sensing module and a communication module. The sensing module senses characteristics of at least a portion of the string, such as voltage or current. The communication module receives the sensed characteristics and converts them into digital form for broadcast to the system server over the bus. The communication module of the probes have a memory for storing an address assigned to the corresponding probe upon reception of an initialization signal sent by the system server via the bus.

A Kelvin connector for coupling to a post of a battery includes a first contact having a surface which at least partially conforms to and is adapted to engage and electrically connect to a surface of the post. The connector also includes a second contact having a surface which at least partially conforms to and is adapted to engage and electrically connect to the surface of the post. An electrical insulator between the first contact and the second contact urges the surface of the first contact and the surface of the second contact against the surface of the post and thereby forms a Kelvin connection to the post.

Provided is a deterioration determination circuit configuring by including: an SOC detection unit for detecting an SOC of a secondary battery; an internal resistance detection unit for detecting an internal resistance value of the secondary battery; a first determination unit for determining the status of deterioration of the secondary battery based on the internal resistance value detected by the internal resistance detection unit when the SOC detected by the SOC detection unit is within a range of a pre-set first range; a second determination unit for determining the status of deterioration of the secondary battery based on the internal resistance value detected by the internal resistance detection unit when the SOC detected by the SOC detection unit is within a range of a pre-set second range as a range of an SOC, in which a variation of the internal resistance of the second battery in relation to a variation of the SOC of the secondary battery is different from the first range; and a final determination unit for ultimately determining that the secondary battery is deteriorated when the first determination unit determines that the secondary battery is of the deteriorated status and the second determination unit additionally determines that the secondary battery is of the deteriorated status.

An electrochemical device manufactured using an electrode layer in which severe increase of electrode resistance is prevented and / or a solid electrolyte layer in which severe decrease of ion conductivity of a solid electrolyte is prevented is provided. The electrochemical device includes a pair of electrode layers, and a solid electrolyte layer provided between the pair of electrode layers, wherein at least one layer of the electrode layers and the solid electrolyte layer is composed of first particles each providing a function of the at least one layer, second particles and a binder which is composed of an organic polymer and binds the first and second particles, and wherein the at least one layer is formed from a mixture material containing the first particles and binder particles, each of the binder particles including the second particle and the binder carried on at least a part of a surface thereof.

Some embodiments of the present invention provide a system that estimates a state of charge for a battery. During operation, while the battery is relaxing toward a fully rested state, the system determines if a modified state of charge of the battery is substantially consistent with a predetermined decay pattern. If so, the system estimates the state of charge of the battery as a value of the modified state of charge determined at the time when the consistency is observed. Otherwise, the system continues monitoring the modified state of charge of the battery. In one embodiment, the predetermined decay pattern is a single exponential decay. After estimating the state of charge of the battery, the system may determine an uncertainty of the estimated state of charge. More specifically, the system can estimate the uncertainty as substantially equal to a fraction of the difference between the value of the modified state of charge and the value of the voltage-based state of charge at the time when the consistency is observed.

The invention discloses a fire fighting method of a container type lithium ion battery energy storage system. The fire fighting method of the container type lithium ion battery energy storage system utilizes an automatic fire extinguishing system and an early warning system, can separately initiate three-stage fire-extinguishing responses in different stages of fire happening and spreading in energy storage containers, such as single battery fire, battery module fire and energy storage system fire, and sends out three-stage warning signals, that is, through a fire detection and fire extinguishing system, a fine water mist fire extinguishing system and a water spray and water curtain system, the single battery fire as well as the spread of the fire between a battery cabinet and even the containers can be effectively restrained and prevented; and meanwhile, terminal monitor personnel takes different emergency measures through the different early warning signals, so that the safety and efficient operation of the container type energy storage system is ensured.

The electrical measuring apparatus (17) and temperature sensing apparatus minimises the number of connections required for each contact (30, 31) of a battery (18). The present invention measures the core temperature of the battery (18) which is useful in monitoring the health of the battery (18). The apparatus comprises first connection means to connect to the first contact (30) of the battery (18) and second connection means to connect to the second contact (31) of the battery (18). The apparatus includes a thermistor (36) which connects in series with one lead (32) of the connecting means. Accordingly, the apparatus does not require the temperature sensor (36) to be independently connected to the battery (18).

Battery-powered devices which are capable of authenticating batteries. In one embodiment, a device comprises: a battery, an excitation source, a photodetector, and an operating system. The device is capable of at least partially being powered by the battery. The excitation source is capable of producing radiation and disposed so that the radiation can contact a surface of the battery. The photodetector is capable of detecting radiation from the battery. The operating system is capable of determining whether or not the battery is an authentic battery for that device.

A battery recycle system includes a vending machine for vending secondary batteries. The vending machine has therein a telecommunication terminal connected to a server provided in a secondary battery for receiving information of minimum quality of a typical used secondary battery. Upon receiving a used battery from a user, the vending machine supplies a charged battery to the user at a reduced cost corresponding to the quality of the used battery. The used battery is charged and stocked for a next user.

The invention relates to recycling detection, screening and matching method and device for battery modules. The method comprises the steps of carrying out charge and discharge performance testing on retired battery modules after standing by taking the battery modules as the maximum screening units to obtain maximum voltage and minimum voltage of single batteries; and when an absolute value of a difference value between the maximum voltage and minimum voltage is smaller than a set voltage difference threshold, judging that the retired battery modules can be recycled and carrying out matching according to the internal resistance and the capacity of the battery modules. The consistency of the single batteries is considered, the retired power battery modules are not split into single batteries for screening and matching, the battery modules are taken as objects for screening and matching, and the battery modules with good consistency of the single batteries are matched through judging open-circuit voltage of the single batteries. The work difficulty of cascade utilization of the matched batteries is greatly simplified, and the screened and matched power battery packs are short in production cycle, relatively high in consistency and low in manufacturing cost.

An apparatus for making a hermetic device containing a detectable gas and comprising a surface having a fill port comprising a vacuum pump in communication with the hermetic device through a vacuum conduit; a liquid reservoir for containing liquid to be delivered to the hermetic-device; a gas reservoir for containing a detectable gas to be delivered to the hermetic device; a transfer vessel for transferring a selected quantity of liquid and gas to the hermetic device; and a block for passing the selected quantity of liquid and gas through a fill port of the hermetic device, and disposing a seal into the fill port. A method for making a hermetic device containing a detectable gas, and an exemplary hermetic device comprising an electrochemical cell or a capacitor are also disclosed.

There is provided a battery assembly wherein assembly can be facilitated by reducing the number of components to be assembled, by integrally fixing resin plates (52, 62) on the inside of metal plates (51, 61) of end plates (5, 6). A laminated battery body (3) is constituted by adjacently arranging battery holders (2) made of resin forming cooling passages (4) between a plurality of batteries (1) and holding such batteries (1) on both sides between other batteries (1). The metal plates (51, 61) and resin plates (52, 62) that are integrally fixed on the inside of these metal plates are provided on the outside of the batteries (1) at both ends of the laminated battery body (3). Thus, the batteries (1) are held by the resin plates (52, 62), and the end plates (5, 6) are respectively arranged to form the cooling passages (4) between these batteries (1) and the metal plates (51, 61). The laminated battery body (3) is fixed in a clamped manner by fixing means clamping these end plates (5, 6).

Various embodiments of the present invention are directed at a method and system for recharging batteries for wireless electronic devices. According to one embodiment, a battery charging and monitoring system is disclosed. The system includes a host machine providing a plurality of charging slots and a plurality of wireless devices coupled to and powered by a plurality of batteries. The host machine is adapted to communicate with the plurality of wireless devices through a plurality of wireless links to monitor the plurality of batteries coupled to the wireless devices. According to another embodiment, an electronic device is disclosed. The electronic device is adapted to couple with at least a rechargeable battery and to negotiate with the rechargeable battery for an agreed range of power parameters. The electronic device is further adapted to accept power from and to provide power to the rechargeable battery at the agreed range of power parameters.

A system and method for testing equipment, apparatuses, or components with distributed measurement and analytical functions. The system comprises a simplified test circuit for obtaining key data representative of the operational characteristics of said equipment, apparatus, or component and transmitting these to a sophisticated device capable of other uses, such as a smart phone or tablet computer. The latter analyzes the raw data with reference to values for nominal characteristics or operation of the equipment, apparatus, or component and provides a result indicative of the condition thereof, or may transmit the data over the Internet to a remote computer for performing the analysis.

A non-aqueous electrolyte battery is provided that is capable of improving safety, particularly the tolerance of the battery to overcharging, without compromising conventional battery constructions considerably. A non-aqueous electrolyte battery is furnished with a positive electrode including a positive electrode active material-layer (2) containing a plurality of positive electrode active materials and being formed on a surface of a positive electrode current collector (1), a negative electrode including a negative electrode active material layer (4), and a separator (3) interposed between the electrodes. The positive electrode active material-layer (2) is composed of two layers (2a) and (2b) having different positive electrode active materials, and of the two layers (2a) and (2b), the layer (2b) that is nearer the positive electrode current collector contains, as its main active material, a spinel-type lithium manganese oxide or an olivine-type lithium phosphate compound.

A method of the present invention is directed to recycling a battery that includes a plurality of lithium cells removable from one another. The battery is tested to measure internal resistance of the lithium cells to determine if the lithium cells present a predetermined level of operational capability. The lithium cells having the operational level less than the predetermined level of operational capability are replaced with new lithium cells as the battery is re-assembled. The removed lithium cells are recycled.

In some variations, an apparatus provides real-time monitoring of voltage and differential voltage of both anode and cathode in a battery configured with at least one reference electrode. Voltage monitors are connected to a computer programmed for receiving anode voltage signals; receiving cathode voltage signals; calculating the derivative of the anode voltage with respect to time or with respect to capacity; and calculating the derivative of the cathode voltage with respect to time or with respect to capacity. Other variations provide an apparatus for real-time assessment of capacities of both anode and cathode in a battery, comprising a computer programmed for receiving electrode voltage signals; estimating first and second electrode open-circuit voltages at two different times, and correlating the first and second electrode open-circuit voltages to first and second electrode states of charge, respectively, for each of anode and cathode. The anode and cathode capacities may then be estimated independently.

A method and apparatus for repairing or testing a used battery pack from an electric vehicle include removing the battery pack from the vehicle. Battery tests are performed on at least some of the plurality of batteries and battery test results for each of the batteries tested are obtained. A cradle is configured to receive at least two different types of batteries. The cradle includes connectors to electrically couple circuitry of a battery tester to the battery.

The present invention concerns a battery monitoring system for monitoring a plurality of batteries serially connected to form a string. The battery monitoring system includes a number of probes connected to at least a portion of the string, a daisy chain bus having a select channel for serially interconnecting the probes, the bus having other, parallel channels for data communication and power, and a system server. The probes each have a sensing module and a communication module. The sensing module senses characteristics of at least a portion of the string, such as voltage or current. The communication module receives the sensed characteristics and converts them into digital form for broadcast to the system server over the bus. The communication module of the probes have a memory for storing an address assigned to the corresponding probe upon reception of an initialization signal sent by the system server via the bus. In order to readdress all of the probes, a reset signal is transmitted to all of the probes. The probes clear the present address, and wait until they are selected through the select channel. Once the probe has been selected, it receives an address from the system server, stores the address in its memory, acknowledges this to the system controller, and sends a signal on the select channel to the next probe. Accordingly, initialization of a battery monitoring system is easily performed. The invention also lies in an interface device for use with a battery monitoring system.

The invention discloses a wireless intelligent battery. The wireless intelligent battery comprises a storage battery pack; the storage battery pack is composed of a plurality of single storage batteries which are in series connection; battery terminals of the single storage batteries are respectively connected with sensors used for detecting battery parameters; the sensors are connected with battery management modules; data collected by the sensors are transmitted to the battery management modules; the battery management modules are connected with wireless communication modules; each single storage battery is provided with a battery end cover; a mounting groove is formed in each battery end cover; the battery management modules and the wireless communication modules which are connected with one another are arranged in the mounting grooves; the wireless communication module of each single storage battery communicates with each other; Internet communication ports are also formed in the single storage batteries. According to the invention, intercomparison on charge-discharge conditions of each single storage battery can be achieved to prevent floating charge of the single storage batteries; data parameter values of each single storage battery can be transmitted to a server through the Internet, so that unified monitoring of technical personnel is convenient.

A battery tester for use in combination with a portable lighting device such as a flashlight or lantern having a housing for retaining at least one battery including first and second terminals, each in electrical contact with an opposite pole of the battery, a conductor located on the exterior of the housing and having one end in electrical contact with the first terminal and an opposite end operably connectable to the second terminal. An indicator material overlies and is in responsive contact with the conductor to respond to and indicate a state that is present in the conductor. The indicator material is preferably a thermochromic ink responsive to heat changes in the conductor caused by a current flowing therethrough. The conductor and indicator material are preferably mounted on a flexible substrate imprinted with decorative ink and indicia and protected by a transparent protective layer.

The invention discloses a power battery temperature management method of an electric automobile. The power battery temperature management method comprises a battery temperature deducing method, a battery temperature optimum work region regulating method, a battery overtemperature prevention management method and a battery undertemperature prevention management method. A management system determines the battery work mode according to the charging and discharging current condition of a battery; the battery temperature change trend of the battery after heat radiation and heating measures are used or when the heat radiation and heating measures are not used is calculated according to the battery heat radiation and heating strategies; the battery heat radiation and heating strategies are selected, so that the battery temperature is maintained in the optimum work region or is similar to the optimum work region. The power battery temperature management method of the electric automobile has the following characteristics that the battery temperature is maintained in the optimum work range to the greatest degree; the use strategies and the heat radiation and heating strategies of the battery are systematically combined, so that the work stability of the battery is guaranteed; except for a special condition that a user cannot realize charging, the condition of automobile charging incapability due to too low temperature can be avoided.

A battery monitoring device configured to monitor a storage battery. The battery monitoring device includes Kelvin connectors configured to couple to the terminals of the storage battery. The battery monitoring device is configured to receive data from a second battery monitoring device. Further, the battery monitoring device is configured to measure a parameter of the storage battery. The measured parameter and the data received from the second battery monitoring device are communicated to a receiving station.