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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 17. Отображено 17.
26-03-2014 дата публикации

Lithium ion secondary battery screening method

Номер: CN103658069A
Принадлежит:

The invention relates to a lithium ion secondary battery screening method. The screening method comprises the following steps: (1) pre-charging; (2) measuring voltage and laser-marking two-dimension codes after pre-charging; (3) primarily aging; (4) reading the two-dimension codes and measuring the voltage after primarily aging; (5) recharging the battery; (6) measuring the voltage and laser-marking two-dimension codes after recharging; (7) secondarily aging; (8) reading the two-dimension codes and measuring the voltage after secondarily aging; (9) detecting and screening; (10) measuring the voltage and laser-marking two-dimension codes after detection; (11) reading the two-dimension codes and measuring the voltage before delivery. According to the method, the batteries are charged to different cut-off voltage through multiple working procedures in the production technology process, and after being placed for a certain period at a certain temperature, the batteries are screened by point-to-point ...

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08-07-2015 дата публикации

Method for detecting whether explosion is caused by over-charging of lithium ion battery

Номер: CN104764766A
Принадлежит:

The invention relates to a method for detecting whether explosion is caused by over-charging of a lithium ion battery, wherein the method comprises the following steps: (1) sample preparation: taking a mixed substance on an electric core negative electrode piece or positive and negative electrode plates after explosion, grinding into a powder, and fully mixing evenly; (2) sample weighing: weighing the obtained sample with the mass greater than or equal to 25 mg, and putting in an alumina crucible; (3) parameter testing by a differential scanning calorimeter, wherein sweeping gas is nitrogen with the rate of 40 mL/min-80 mL/min, the heating rate is 15 DEG C/min-30 DEG C/min, the starting temperature is room temperature, and the final temperature is greater than or equal to 410 DEG C; (4) analysis of experimental results: analyzing whether a curve has endothermic peaks at the temperature of 70 DEG C-100 DEG C and the temperature of 380 DEG C-410 DEG C, if the curve has the endothermic peaks ...

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25-07-2023 дата публикации

Process and device for reducing aging time of lithium battery after liquid injection

Номер: CN116487717A
Принадлежит:

The invention discloses a process and device for reducing aging time of a lithium battery after liquid injection, the device comprises a bottom plate, a first vertical clamping plate and a second vertical clamping plate, the first vertical clamping plate is arranged on the bottom plate in a left-right moving manner, and the second vertical clamping plate is arranged on the bottom plate in a left-right moving manner; the first vertical clamping plate and the second vertical clamping plate are oppositely arranged left and right, and are respectively used for extruding two oppositely arranged planes of the lithium ion battery cell after liquid injection. Through the mode, the electrolyte is uniformly dispersed, and internal bubbles are eliminated, so that the contact area of the pole piece and the electrolyte can be increased, the absorption effect on the electrolyte can be enhanced, the infiltration effect of the pole piece can be improved to ensure the battery performance, and the aging ...

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09-11-2011 дата публикации

Battery steel shell forming machine and steel shell forming method using same

Номер: CN0102233372A
Принадлежит:

The invention relates to a battery steel shell forming machine and a steel shell forming method using the same. The battery steel shell forming machine comprises a frame, a die and a forming cylinder, wherein, a left chute and a right chute are arranged in the middle parts of fixing plates at the lower part of the die; a left forming claw and a right forming claw are respectively arranged in the chutes; and a wedge-shaped punch head is arranged above the left forming claw and the right forming claw and is connected with the punch forming cylinder at the upper part through a stamping seat. The battery steel shell forming method comprises the following procedures of preparing; emptying; forming; connecting a bottom cover; and welding. The forming machine and the forming method provided by the invention have the beneficial effects that the obtained battery steel shell has uniform thickness, thus being not easily deformed when in use; and the adopted manufacturing equipment has a simple structure ...

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08-07-2015 дата публикации

Leakage detection method for lithium ion batteries

Номер: CN104764568A
Принадлежит:

The invention relates to a leakage detection method for lithium ion batteries. The method comprises the steps that (1) the batteries to be detected are placed in a leakage detection die; (2) batteries are rotated to position below leakage detection syringes, and the cylinders move downwardly so that liquid injection holes of the batteries are sealed with the leakage detection syringes; (3) an air pressure source is started to inject dry gas into the batteries under certain air pressure for certain time; (4) a solenoid valve is closed, and at the same time, a computer system collects the internal air pressure P1 of each battery; (5) the pressure is maintained for certain type, and the computer system collects the internal air pressure P2 of each battery for second time via a sensor; (6) a computer determines whether leakage occurs in the battery according the air pressure change value delta P=P1-P2; and (7) leakage detection syringes move upwardly to return to the original positions. The ...

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14-07-2023 дата публикации

Forming equipment blanking air bag shaping device and using method thereof

Номер: CN116424867A
Принадлежит:

The invention relates to the technical field of battery production, in particular to a forming equipment blanking air bag shaping device and a use method thereof. The device comprises a horizontal moving mechanism, a vertical moving mechanism, a mounting frame, a plurality of near-end telescopic rods and a plurality of far-end telescopic rods, the vertical moving mechanism is mounted at the movable end of the horizontal moving mechanism, the mounting frame is mounted at the movable end of the vertical moving mechanism, and a plurality of mounting holes allowing the telescopic rods to be inserted therein are formed in the mounting frame. The periphery of the telescopic rod is sleeved with a reset spring, the lower end of the near-end telescopic rod is connected with a first suction cup through a first connector, the lower end of the far-end telescopic rod is connected with a second suction cup through a second connector, the second suction cup assists the first suction cup in pressing an ...

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20-07-2011 дата публикации

Integrated automatic leakage and short circuit detector for battery and working method

Номер: CN0102129038A
Принадлежит:

The invention relates to an integrated automatic leakage and short circuit detector for a battery and a working method. The integrated automatic detector comprises a worktable, a disc, a feeding device, a short circuit detection device, a leakage detection device and a discharging device, wherein the disc is arranged in the centre of the worktable; the feeding device, the short circuit detection device, the leakage detection device and the discharging device are arranged on the surface of the worktable on the periphery of the disc in turn; feeding molds are respectively arranged on the disc corresponding to each station; and the feeding molds are distributed on the disc uniformly. The working method of the integrated automatic leakage and short circuit detector for the battery comprises the following steps of: feeding, detecting a short circuit, detecting leakage, and discharging. Because working devices of each step are arranged according to different stations, tedious actions become simple ...

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08-07-2015 дата публикации

Processing method of lithium ion battery positive electrode slurry

Номер: CN104766948A
Принадлежит:

The invention relates to a processing method of a lithium ion battery positive electrode slurry, wherein the processing method comprises the following steps: positive electrode powder dry mixing, muddy stirring, viscosity adjusting and stirring, and vacuumizing and degassing, wherein the positive electrode powder dry mixing comprises putting lithium cobaltate, nickel cobalt lithium manganate, lithium manganate, lithium iron phosphate, an adhesion agent, a conductive agent and a dispersion agent into a double planetary stirrer, carrying out dry mixing stirring, setting the dry mixing stirring time to be 10 min-90 min, starting the double planetary stirrer with the revolution speed of 20 RPM-60 RPM and the autoroatation speed of 0 RPM-300 RPM, and thus obtaining a powder mixture. According to the processing method, the energy can be effectively saved, the slurry preparation time can be effectively shortened, the utilization rate of equipment can be effectively improved, and thus benefits ...

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26-03-2014 дата публикации

Formation and pre-charging charging method for lithium ion secondary battery

Номер: CN103682494A
Принадлежит:

The invention relates to a formation and pre-charging charging method for a lithium ion secondary battery. The formation and pre-charging charging method comprises the following steps: (1) pre-charging batteries on a pre-charging cabinet for 0.5-2 hours under the condition that constant-current pre-charging current is set as 0.1-0.4C+/-2mA; (2) unloading the batteries from the cabinet within 30 minutes after finishing the charging; and (3) testing voltage and screening: after testing, determining the batteries meeting the pre-charged voltage standard which is a range of 3.5V-3.9V to be qualified and screening bad batteries not meeting the standard. Compared with the prior art, the formation and pre-charging charging method has the advantages that the pre-charging time is obviously shortened and the production efficiency is improved; the battery has high stability and high capacity.

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16-11-2011 дата публикации

Test sorting machine for battery product and sorting method for test sorting machine

Номер: CN0102240644A
Принадлежит:

The invention relates to a test sorting machine for a battery product and a sorting method for the test sorting machine. The test sorting machine comprises a feeding device, a short circuit test sorting device, a station turntable, a leakage test device, a leakage test sorting device, a weighing device, a weighing taking device and a weighing sorting device, wherein the leakage test device is arranged on a table-board of one side of a leakage test station; the short circuit test sorting device is arranged on a working table-board of one side of a short circuit test qualified product placement station; the feeding device and a short circuit placement region are arranged in front of the short circuit test sorting device; the leakage test sorting device is arranged on one side of a leakage test taking station; a leakage test unqualified product placement region and a leakage test qualified product conveying chute are formed on a working table-board of the front side of the leakage test sorting ...

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26-03-2014 дата публикации

Method for recovering nuclear matrix protein (NMP) solvent in production of lithium ion battery

Номер: CN103664728A
Принадлежит:

The invention relates to a method for recovering a nuclear matrix protein (NMP) solvent in production of a lithium ion battery. The method comprises the following processing steps: (1) absorbing an NMP mixed gas by using a spray absorption tower, preparing an NMP mixed solution with high concentration, pumping and conveying the NMP mixed gas to the spray tower, and conveying NMP crude product liquid to a crude product tank; (2) rectifying and heating the NMP crude product liquid in vacuum to separate water from the NMP, wherein the recovered product is led to a mixing compartment to put into production via a pipeline, so that the NMP is used and recycled over and over again in a reciprocating manner. The water and the NMP are orderly separated in a gaseous form in a heating manner, and purified by in condensing and collecting manners, so as to achieve the target of recovering the product.

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08-07-2015 дата публикации

Processing method of lithium ion battery negative electrode slurry

Номер: CN104766949A
Принадлежит:

The invention relates to a processing method of a lithium ion battery negative electrode slurry, wherein the processing method comprises the following steps: negative electrode powder dry mixing, muddy stirring, high viscosity stirring, viscosity adjusting stirring, and vacuumizing and degassing, wherein the negative electrode powder dry mixing comprises putting graphite, a dispersion agent sodium carboxymethylcellulose and a conductive agent into a double planetary stirrer, carrying out dry mixing stirring, setting the dry mixing stirring time to be 30 min-120 min, starting the double planetary stirrer with the revolution speed of 20 RPM-60 RPM and the autoroatation speed of 0 RPM-500 RPM, and thus obtaining a powder mixture. According to the processing method, the energy can be effectively saved, the slurry preparation time can be effectively shortened, the utilization rate of equipment can be effectively improved, and thus benefits are created for enterprises; and the overall dispersion ...

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15-08-2023 дата публикации

Shaping device for blanking air bag of formation equipment

Номер: CN116598566A
Принадлежит:

The invention belongs to the technical field of battery production, and particularly relates to a formation equipment blanking air bag shaping device which comprises a base, a first notch is formed in the base, a second notch is formed in the base, and a battery cell air bag is placed at the top of the base; by arranging the first pressing roller and the second pressing roller, the battery cell air bag is placed on the base, the battery cell air bag is fixed through the vacuum suction equipment, the moving plate moves on the moving track from left to right, the moving plate can drive the first pressing roller and the second pressing roller to move, and the first pressing roller and the second pressing roller roll the top of the battery cell air bag; according to the battery cell air bag cutting device, air located in the battery cell part in the battery cell air bag can be extruded to the air bag part, so that the air bag part can be cut off at a time during cutting, the battery cell part ...

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20-07-2011 дата публикации

Automatic bending machine for battery lug and working method

Номер: CN0102130318A
Принадлежит:

The invention relates to an automatic bending machine for a battery lug and a working method. The automatic bending machine comprises a workbench, a disc, a feeding device, a preliminary bending device, a fine bending device, a gland device and a discharge device, wherein the disc is arranged at the middle part of the workbench; and the feeding device, the preliminary bending device, the fine bending device, the gland device and the discharge device are sequentially arranged on the workbench surface of the periphery of the disc respectively. The working method of the automatic bending machine for the battery lug is characterized by comprising the following working steps of: feeding, preliminary bending, fine bending, covering and discharge. Because the action of each step is set according to different stations, the fussy folding action becomes simple under mechanical action; and because a program control device is adopted for operation in the method, the production speed is high, the efficiency ...

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08-06-2011 дата публикации

Multi-station battery liquid filling machine and liquid filling method

Номер: CN0102088069A
Принадлежит:

The invention relates to a multi-station battery liquid filling machine and a liquid filling method. The machine consists of a shell, an electric cabinet, a large turntable, small turntables, a liquid pump and a vacuuming barrel, wherein the large turntable is arranged on the bottom plate; a gear cutter connected with the large turntable is arranged below the bottom plate; four small turntables are arranged on the large turntable; the large turntable coupled with the small turntables pauses at a station after every 90 degree rotation; and the liquid pump for the small turntables is arranged on one of the stations, and the vacuuming barrel is arranged above another station. A liquid filling method for the multi-station battery liquid filling machine comprises the following steps of: placing a battery at the first station; metering the filling liquid in a liquid filling barrel at the second station; vacuuming to fill liquid into the battery at the third station; and unloading the battery ...

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08-07-2015 дата публикации

Cover plate assembly detecting device and method of lithium ion battery

Номер: CN104764374A
Принадлежит:

The invention relates to a cover plate assembly detecting device and method of a lithium ion battery. The detecting device comprises a battery sliding portion and a detection portion. The battery sliding portion is composed of guide rails, a battery plate, a fixed battery baffle plate, a movable battery baffle plate and a base plate. The detection portion is arranged in the sliding path of the battery plate, and comprises a detection baffle plate and two adjusting shafts. The detecting method comprises the steps of (1) preparation and (2) cover plate offset detection. Thus, unqualified products can be conveniently found via detection, operation is simple, the detection efficiency is high, offset between a cover plate and a casing can satisfy technical requirements, the problem that batteries whose thickness exceeds the standard are mixed into qualified products due to the fact that negative tabs are bent can be solved, and the product quality is effectively ensured.

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23-11-2011 дата публикации

Battery forward and backward welding machine

Номер: CN0102248282A
Принадлежит:

The invention relates to a battery forward and backward welding machine, comprising a laser welding device and a welding table, wherein a battery front laser welding device and a back laser welding device are arranged on the welding table surface, a battery forward and backward turning and transmitting device is arranged between the two welding devices, a primary feeding device is arranged at one side of the front laser welding device, a feed bin is arranged at the front side of the primary feeding device, a secondary feeding device is arranged at one side of the back laser welding device, and a storage silo is arranged at the front side of the secondary feeding device. In the invention, the battery forward and backward turning and transmitting device is arranged, thus the front and back surfaces of a battery can be continuously welded by the same machine; and the primary feeding device, the secondary feeding device, the feed bin and the storage silo are arranged, the automation of charging ...

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