90results about "Cell testing apparatus" patented technology

A time varying electrical excitation(s) is applied to a system containing biologic and/or non-biologic elements, whereupon the time-varying electrochemical or electrical response is detected and analyzed. For biologic specimens, the presence, activity, concentration or relative quantity, and certain inherent characteristics of certain target substances (hereinafter referred to as “target analytes”) within, or comprising, the specimen of interest may be determined by measuring either the current response induced by a voltage-mode excitation, or the voltage response induced by a current-mode excitation. Labeling or marker techniques may be employed, whereby electrochemically active auxiliary molecules are attached to the substance to be analyzed, in order to facilitate or enhance the electrochemical or electrical response. The method may also be employed to test non-biologic systems comprising an electrochemical cell or a battery of cells, wherein complex pulse type excitation signals are applied to the cell and the resultant time varying polarization voltage information is extracted and analyzed to determine at least one characteristic of the cell(s) condition or state.

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.

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.

An alkaline dry battery including a zinc negative electrode prepared by dispersing zinc alloy powder containing 0.015 wt % or less of indium and 0.008 wt % to 0.02 wt % both inclusive of aluminum into a gelled alkaline electrolyte containing 0.5 wt % to 3 wt % both inclusive of a cross-linked water-absorbing polyacrylate polymer, a separator made of a single nonwoven fabric sheet or a stack of multiple nonwoven fabric sheets and has a thickness of 360 μm to 880 μm both inclusive and a positive electrode containing manganese dioxide.

Methods for testing the hermeticity of casings for power sources intended to power implantable medical device by sensing the presence of vapors escaping from an electrolyte contained therein are described. More broadly, the present leak detection methods are applicable to any sealed enclosure having a first part sealed to a second part with a liquid contained therein. The liquid need not occupy the entire volume of the enclosure, but must contain at least one component having a vapor pressure at 25° C. of more than about 0.1 mm Hg. This component can assist in the functioning of the device such as an electrolyte, or be added for the sole purpose of leak detection.

A method for producing silver nanowires, containing reduction-precipitating silver in the form of wire in an alcohol solvent having dissolved therein a silver compound, the deposition being performed in the alcohol solvent having dissolved therein a chloride, a bromide, an alkali metal hydroxide, an aluminum salt, and an organic protective agent, the molar ratio Al/OH of the total Al amount of the aluminum salt dissolved in the solvent and the total hydroxide ion amount of the alkali metal hydroxide dissolved therein being from 0.01 to 0.40, the molar ratio OH/Ag of the total hydroxide ion amount of the alkali metal hydroxide dissolved in the solvent and the total Ag amount of the silver compound dissolved therein being from 0.005 to 0.50.

The invention is directed towards an electrochemically active cathode material. The electrochemically active cathode includes beta-delithiated layered nickel oxide. The beta-delithiated layered nickel oxide has an X-ray diffraction pattern. The X-ray diffraction pattern of the beta-delithiated layered nickel oxide includes a first peak from about 14.9°2θ to about 16.0°2θ; a second peak from about 21.3°2θ to about 22.7°2θ; a third peak from about 37.1°2θ to about 37.4°2θ; a fourth peak from about 43.2°2θ to about 44.0°2θ; a fifth peak from about 59.6°2θ to about 60.6°2θ; and a sixth peak from about 65.4°2θ to about 65.9°2θ.

A device and a method for checking the leak-tightness of an electrochemical energy store includes a detection unit that can detect a gas concentration in a battery housing that is closable. The detection unit is a metal oxide sensor connected to an evaluation unit, and as a function of the detected gas concentration a control signal is automatically generated by the evaluation unit for disconnecting the electrochemical energy store and/or for triggering a binder release unit.

The invention provides a battery detection method and a device, wherein the method comprising the following steps of: obtaining the picture of each battery on a battery production line, and the corresponding production node; inputting the picture into a preset defect detection model to obtain a detection result output by the defect detection model], wherein the detection result includes: whether there is a defect, the type and position of the defect; and sending a control instruction to the control device of the production node corresponding to the picture when the detection result is that there is a defect, so that the control device shunts the battery corresponding to the picture having the defect according to the control instruction. The invention identifies the defect of the battery bycombining the defect detection model, and is capable of identifying a simple defect and a complex defect. The invention can retrain the defect detection model in combination with the detection result, so that the defect detection model can recognize the latest defect, and automatically shunts the battery according to the identified defect without manual intervention, which improves the efficiencyand accuracy of battery detection and greatly reduces labor costs.

An apparatus for detecting the sealability of a lithium ion cell comprises a container which is filled with a detecting liquid, a clamp and a high-pressure-gas joint member. The clamp can carry a lithium ion cell to be detected and put it into said container. One end of the high-pressure-gas joint member is connected to an injecting hole of the lithium ion cell to be detected and the other end is connected to a high-pressure gas supply. The detecting apparatus also comprises an elevator which can move the lithium ion cell into and out the detecting liquid within the container.

A method for testing a seal of a part that includes an electrolyte of an electrochemical cell, the method including: forming a closed cavity delimited by a first outer surface of the part including the electrolyte to be tested; contacting a second outer surface of the part, opposite the first surface, with a first fluid; circulating a second fluid, separate from the first fluid, through the closed cavity between an inlet and an outlet of this cavity; and analyzing the fluid extracted via the outlet of the cavity, to detect possible presence of the first fluid.

The invention relates to a carbon-fluoride-based primary lithium battery and a preparation method and a detection method thereof. A battery positive plate consists of a conductive metal foil or net serving as a current collector and composite slurry attached to the conductive metal foil or net, wherein the composite slurry comprises carbon fluoride; and the electrolyte consists of nonaqueous electrolyte and an added functional additive used for improving the rate capability of the battery at least. The preparation method comprises the following steps: preparing the electrolyte, preparing positive and negative plates and assembling the battery. The carbon-fluoride-based primary lithium battery and the preparation method and the detection method thereof disclosed by the invention have the advantages that the electrolyte with the functional additive in the battery can be directly contacted with the positive plate, so that the plate has good interfacial properties; the battery has low interface resistance, the wetting property of the electrolyte is improved, and the transmission of lithium ions on the interface is improved, so that the rate capability of the carbon-fluoride-based primary lithium battery is improved; and moreover, a positive active material carbon fluoride or a carbon fluoride modified material and the electrolyte have good interfacial compatibility, so that good voltage platform and specific discharge capacity can be obtained.

The invention provides a method for rapidly detecting sealing performance of a battery box. The method comprises the following steps of firstly, sealing the battery box to be detected, applying an auxiliary detection liquid for detecting an air leakage position onto a box body of the battery box to be detected; secondly, pressurizing the battery box to be detected by an inflation device, maintaining the pressure of the battery box to be detected, calculating an attenuation indication value changing range of a pressure value of the battery box to be detected, and judging whether the sealing performance of the battery box to be detected is qualified or not; and finally, judging an accurate position of air leakage of the battery box by observing a bubble out state of the auxiliary detection liquid. By the method, the detection cost can be greatly reduced, the air leakage position of the battery box can be rapidly judged, and the working efficiency is improved.

The invention discloses a method for calculating the electric quantity of a lithium-manganese disposable battery in a super-long standby tracker and the tracker. The method comprises the steps of s1,GSM assigning an initial value to electric quantity of a first battery or a second battery if a single-chip microcomputer shows a power-on reset mark, and the acquired voltage of a battery is larger than a first preset voltage value; s2, calculating the power consumption percentage of the battery after the initial value of the electric quantity is assigned to the first battery; s3, assigning the remaining electric quantity of the battery; s4, calibrating the remaining electric quantity of the battery if the recollected voltage of the battery is smaller than the first preset voltage value, andotherwise, assigning the remaining electric quantity of the battery again; s5, determining whether the replacement battery criterion is met or not, and if so, returning to the s1, and if not, the stepcorresponding to assigning the remaining electric quantity of the battery; calibrating the remaining electric quantity of the battery after the initial value of the electric quantity of the second battery is assigned, and then determining whether a new battery is replaced or not. The tracker does not need to add a new device, so that the electric quantity calculation can be realized, and the calculation precision is high. The intelligent learning can be carried out according to historical data statistics stored in the GSM.

The present invention relates to a battery test rig, comprising a test cell (3) in which a battery (2) to be tested is arranged, a holder (13) which is arranged in the test cell (3) and is able to hold the battery (2), a regulation unit (4) which can be connected to a battery (2) arranged in the holder (13), at least one sensor device (5, 6) for monitoring the battery (2), wherein the sensor device (5, 6) is connected to the regulation unit (4), and a cooling apparatus (7), which is connected to the regulation unit (4) and is designed to cool the battery (2) in the test cell (3) from the outside in a hazard situation.

A method for evaluating sealing of a bipolar structure including a sheet-like substrate forming a current collector, and two electrodes in a form of films arranged on opposite surfaces of the substrate, respectively, the method including: placing the bipolar structure in a cavity to define first and second compartments therein, which are separated by the bipolar structure, a periphery of which is sealingly connected to the cavity; circulating a fluid in the first compartment of the cavity toward the second compartment; and evaluating sealing of the bipolar structure from a measurement of difference in pressure of the fluid in the first and second compartments.

A battery life alarm system and a battery life alarm method are provided. The battery life alarm system includes a first arithmetic unit, a second arithmetic unit and a third arithmetic unit. The first arithmetic unit outputs a capacity ratio according to a sense voltage and a design capacity of a battery. The second arithmetic unit outputs a life ratio according to a used life parameter and a design life parameter of the battery, wherein the used life parameter and design life parameter correspond to the using time or the charge/discharge times of the battery. The third arithmetic unit outputs a life index according to the capacity ratio, the life ratio and a weighted percentage.

A short-circuit detection apparatus for detecting short circuits (20, 30) of a battery cell (1), characterized by a current registering device (10), which is arranged in the interior of the battery cell (1) or between the exterior of the battery cell (1) and an external terminal (4, 5) of the battery cell (1) for the purpose of registering a current through the battery cell (1).

The present invention relates to the technical field of power batteries and provides a battery management system slave address calibration system and method. The method comprises the steps of (S1) receiving a square wave signal sent by a previous slave BMU or host BCU and acquiring the frequency of the square wave signal, and (S2) generating a slave address or a slave code of a current slave BMU based on the frequency of the square wave signal and sending a square wave signal with a different frequency to the next slave BMU or host BCU. The automatic calibration of the slave address is carriedout based on the frequency of the square wave signal, the anti-interference ability is high, and the invention is not restrained by the number of slave BMUs. Closed-loop detection characteristics areemployed, the number of slaves that have been calibrated can be calculated based on the frequency of the square wave signal fed back by a last slave BMU, therefore, whether the slave is successfullycompleted is confirmed, and the automatic calibration can be carried out even repair or program is changed.

The invention relates to the technical field of new energy source production, in particular to a square lithium battery inspection machine, which comprises a machine frame, a turntable mechanism, a battery cell test mechanism, a connector separation mechanism, a code scanning mechanism, a first disqualification conveying mechanism, a length measuring mechanism, a width measuring mechanism, a thickness measuring mechanism, a linkage mechanical hand and a discharging mechanism, wherein the turntable mechanism, the battery cell test mechanism, the connector separation mechanism, the code scanningmechanism, the first disqualification conveying mechanism, the length measuring mechanism, the width measuring mechanism, the thickness measuring mechanism, the linkage mechanical hand and the discharging mechanism are arranged on the machine frame. The square lithium battery inspection machine has the advantages that the battery performance inspection, the battery bar code scanning inspection and the battery appearance dimension inspection can be fully automatically completed; the inspection efficiency is high.

The invention discloses a rapidly activating test device for zinc-silver reserve batteries. The rapidly activating test device comprises a simulated battery groove used for storing the zinc-silver reserve batteries, a simulated liquid receiver used for storing electrolyte and a simulated distribution channel used for connecting the simulated battery groove with the simulated liquid receiver; the simulated battery groove comprises a base and a cover located on the base, the lower surface of the cover is provided with battery grooves storing the zinc-silver reserve batteries, the upper surface of the base is provided with clamping grooves used for being connected with the side walls of the cover, the base is fixedly connected with the cover, and the upper surface of the cover is provided with an electrolyte inlet allowing the electrolyte to enter the battery grooves conveniently; the upper surface of the simulated liquid receiver is provided with a gas inlet connected with a gas generator, the lower surface of the simulated liquid receiver is provided with an electrolyte outlet, and an electro-hydraulic isolating membrane is arranged at the electrolyte outlet; the simulated distribution channel is of a hollow tubular structure, one end of the simulated distribution channel is connected with the electrolyte outlet, and the other end of the simulated distribution channel is connected with the upper surface of the cover.

The invention discloses a constant temperature and isopiestic pressure type thermal battery electric performance test system and a test method thereof. The test system comprises an electric performance test system and a test device arranged inside a glove box, wherein the test device comprises a constant temperature and isopiestic pressure system and a thermal battery assembly system which are matched with each other; the constant temperature and isopiestic pressure system comprises a first heating furnace plate and a second heating furnace plate between which a gap is formed; the first heating furnace plate is connected with a pressure machine, and the thermal battery assembly system is arranged between the first heating furnace plate and the second heating furnace plate; the thermal battery assembly system comprises a conducting clamp which is positioned between the first heating furnace plate and the second heating furnace plate and is electrically connected with the electric performance test system; and the conducting clamp is internally provided with a thermal battery. According to a single thermal battery discharge system and the test method disclosed by the invention, the disadvantages of an existing single thermal battery discharge test system are overcome, the thermal battery can be activated quickly, the system has relatively ideal single thermal battery discharge conditions, and the uniformity of single thermal battery discharge can be improved greatly.

The invention discloses a parallel heating device applied to heating of an automatically activated silver zinc reserve battery pack. The parallel heating device is applied to heating test of the automatically activated silver zinc reserve battery pack ad comprises an information input and output model, a main control panel, four heating modules and a feedback protection module. The heating device is convenient to operate, capable of heating four batteries simultaneously, high in safety and reliability and convenient to popularize.