1708results about "Primary cells" patented technology

A material conveying apparatus, a battery assembly system, a production line, and an assembly method. The material conveying apparatus comprises a frame (10), a conveying mechanism (20), a limiting mechanism (30), and a carrying mechanism (40). The conveying mechanism (20) comprises two conveying paths arranged on the frame (10), one of the two conveying paths is an input path (21) used for conveying a box body (60) loaded with materials, and the other one of the two conveying paths is an output path (22) used for conveying the unloaded box body (60). The limiting mechanism (30) is disposed on the frame (10) or the conveying mechanism (20) and is used to define on the input path (21) a waiting position (21a) and a material pick-up position (21b) arranged in the input direction, and define on the output path (22) a transfer position (22a) and a removal position (22b) arranged in the output direction. The carrying mechanism (40) is used for carrying to the transfer position (22a) the box body (60) which is located at the material pick-up position (21b). The material conveying apparatus can be adapted to transportation of various battery assembly materials and has good universality.

A grabbing device (1), a grabbing apparatus, a battery production line and a control method. The grabbing device (1) comprises a frame (11), a clamping plate mechanism (12), and a distance changing mechanism (13). The frame (11) is used for connecting to a mechanical arm; the clamping plate mechanism (12) comprises two clamping plate assemblies spaced apart from each other, and is used for clamping a plurality of battery cells (2); the distance changing mechanism (13) is arranged on the frame (11), and is separately in driving connection to the two clamping plate assemblies so as to adjust the distance between the two clamping plate assemblies; the two clamping plate assemblies are a reference clamping plate assembly (122) and a floating clamping plate assembly (121); the reference clamping plate assembly (122) can provide a clamping reference for the plurality of battery cells (2); the floating clamping plate assembly (121) can clamp each battery cell (2). The grabbing device (1), the grabbing apparatus, the battery production line and the control method can stably grab battery cells (2).

The invention provides a thermal compounding device which comprises a bearing platform, a positive plate positioning device is arranged on one side of the top surface of the bearing platform, a temporary storage platform is arranged on one side of the positive plate positioning device, a material taking manipulator is arranged on one side of the temporary storage platform, and a flat pressing thermal compounding device is arranged on one side of the material taking manipulator. An ultrasonic dust removal device is arranged among the cache platform, the material taking manipulator and the flat-pressing thermal compounding device, a temperature and pressure sensor is arranged on one side of the flat-pressing thermal compounding device, a laser photographing and cutting platform is arranged on one side of the temperature and pressure sensor, and a parallel material clamping belt is arranged between the flat-pressing thermal compounding device and the laser photographing and cutting platform; the invention has the beneficial effects that the flat pressing type thermal composite structure that the upper and lower soft flat plates are used for hot-pressing and adhering the upper and lower diaphragms to the front and back surfaces of the positive plate is adopted, so that the defects of pole piece dislocation, material belt distortion, pause pole piece scrapping and the like caused by adopting a double-roller mode in the same row are effectively overcome, and the failure rate of equipment can be effectively reduced; and waste materials are reduced, the cost is saved, and the production efficiency and the yield are improved.

The invention belongs to the technical field of battery production, and particularly relates to a battery production device, battery production equipment and a battery production method.The battery production device comprises a rack, a moving mechanism and a cover, the moving mechanism is connected with the rack and provided with a first station, and the moving mechanism is used for moving a first supporting cup to the first station; the first supporting cup is provided with a first mounting cavity for accommodating a battery; the cover body is used for being sealed and covered with the first supporting cup located at the first station so as to seal the first mounting cavity. The moving mechanism does not need to take the battery out of the supporting cup, movement actions of the mechanism are reduced, operation actions are simplified, the production efficiency of the battery is improved, and then the requirement for high-speed manufacturing of the battery is met.

The present application relates to the field of batteries, and provides a lamination system. The lamination system comprises a first transfer mechanism, a second transfer mechanism, a separator unwinding mechanism, and a laminating device. The first transfer mechanism is used for transferring a first electrode sheet. The second transfer mechanism is used for transferring a second electrode sheet. The polarity of the second electrode sheet is opposite to that of the first electrode sheet. The separator unwinding mechanism is used for unwinding a separator. The laminating device is used for receiving the first electrode sheet, the separator, and the second electrode sheet, and laminating the first electrode sheet, the separator, and the second electrode sheet to form a battery cell. In the lamination system, the first transfer mechanism, the second transfer mechanism, and the separator unwinding mechanism can respectively provide the first electrode sheet, the second electrode sheet, and the separator for the laminating device, and the laminating device can laminate the first electrode sheet, the separator, and the second electrode sheet to form a battery cell, achieving automated lamination, and facilitating the improvement of the lamination quality and the production efficiency.

The utility model relates to the technical field of battery production equipment, in particular to a roll changing device and battery cell winding equipment. A roll changing device comprises an unwinding mechanism, a first material roll is arranged on the unwinding mechanism, and the first material roll is used for unwinding a material strip when rotating around the axis of the first material roll; the cutting mechanism is used for cutting off the material belt unwound by the unwinding mechanism, so that the material belt forms a cutting end located at the downstream of the cutting mechanism; and the unwinding mechanism is further used for arranging a second material roll, and the belt splicing mechanism is used for splicing the starting end of the second material roll to the cutting end. According to the reel changing device, due to the fact that the number of the unwinding mechanisms can be reduced, and automatic tape splicing of the material tape can be achieved, the occupied area can be reduced, and meanwhile the labor cost and the equipment cost can be reduced.

The invention relates to an mounting fixture (1), comprising, within its structure at least one cassette slot (1.1) in which the cassettes are positioned; at least one battery cell slot (1.2) in which the battery cells are positioned; at least one tab pressing part (1.3) providing a bearing for the battery cell lugs; NTC device slot (1.4), which has a recessed structure and protects the NTC device in case of sagging while allowing it to be positioned without damage; tab cutting unit reference part (1.5), preventing short circuit and providing referencing in tab cutting process; insulated surface (1.6), preventing short circuit and providing protection for the mounting fixture (1); and mounting fixture base (1.7) produced using wear-resistant material for increasing sliding on the conveyor on the conveyor contact surface of the mounting fixture (1) in the production line.

The present application relates to a sheet stacking apparatus. The sheet stacking apparatus comprises: a sheet stacking table, which can move in a controlled manner and pass through a plurality of sheet stacking stations; a plurality of feeding devices, wherein each sheet stacking station is correspondingly provided with one feeding device, and each feeding device is configured to provide material sheets; and a plurality of sheet stacking manipulators, wherein each sheet stacking station is provided with one sheet stacking manipulator, and each sheet stacking manipulator is used for grasping material sheets provided by feeding devices at the same sheet stacking station. When the sheet stacking table moves to any sheet stacking station, the sheet stacking manipulator located at the same sheet stacking station together with the sheet stacking table stacks grasped material sheets onto the sheet stacking table.

The invention discloses button cell assembling equipment, which comprises a feeding device, an electrolyte adding device and a sealing and pressing device, and is characterized in that the feeding device comprises a rotating motor driven by a corresponding first driving mechanism; the charging tray taking mechanism comprises an electromagnet which is in transmission connection with the rotating motor and a magnetic metal piece which is fixedly connected to the charging tray; the button battery material taking mechanism comprises a plurality of suction nozzle mounting assemblies and suction nozzles mounted on the suction nozzle mounting assemblies; the sealing and pressing device comprises a sealing and pressing bottom die assembly; an upper die assembly is sealed and pressed; an air blowing mechanism; and the electrolyte adding device comprises an electrolyte pipetting gun, and the electrolyte pipetting gun is driven by a corresponding fourth driving mechanism. According to the invention, the raw materials for preparation of the button cell can be stacked in sequence in a full-automatic manner, electrolyte is added, and then the stacked raw materials for preparation of the button cell after the electrolyte is added are sealed, pressed and assembled.

The invention belongs to the technical field of battery manufacturing equipment, and particularly relates to a battery cell winding needle device and battery cell winding equipment. The battery core winding needle device comprises a mounting seat and a winding needle, the assembling shell is provided with a first end and a second end, the first end is fixedly mounted on the mounting seat, and the second end is a free end; the at least one group of transmission assemblies are mounted on the assembly shell, each transmission assembly comprises a plurality of transmission components, and the transmission components are arranged around the axis of the assembly shell; and the multiple adsorption shells are connected to the transmission components in a one-to-one correspondence mode, the multiple adsorption shells are combined to form a barrel structure, and the transmission components drive the adsorption shells to move in the direction perpendicular to the axis of the assembly shell so as to enlarge or reduce the outer diameter of the barrel structure. By applying the technical scheme, the problem that in the related technology, when a naked battery cell is wound and formed, the naked battery cell has hoop acting stress on the battery cell winding needle device, so that the naked battery cell is difficult to detach from the battery cell winding needle device is solved.

The utility model relates to the technical field of batteries, and discloses a pole piece group, a laminated cell and a battery, the pole piece group comprises a first pole piece and a second pole piece with the same polarity, unfilled corner structures are arranged at the corners of the first pole piece and the second pole piece, the first pole piece is provided with one of the first unfilled corner structure and the second unfilled corner structure at the same corner position, and the second pole piece is provided with one of the second unfilled corner structure and the first unfilled corner structure. The first pole piece is provided with one of a first unfilled corner structure and a second unfilled corner structure, the second pole piece is provided with the other one of the first unfilled corner structure and the second unfilled corner structure, and the size of the first unfilled corner structure is larger than that of the second unfilled corner structure, so that the second unfilled corner structure protrudes out of the first unfilled corner structure when the first pole piece and the second pole piece are laminated. When the pole piece and the diaphragm are overlapped, the second unfilled corner structure protrudes out of the first unfilled corner structure along the thickness direction of the battery cell, and the hollow area exists at the same corner position, so that the hollow area can buffer and reduce pressure in a hot pressing process, and the pressure is prevented from being transmitted layer by layer along with the pole piece; and the risk that burrs at the corners of the pole piece pierce the diaphragm in the hot pressing process is reduced.

Thermoplastic compositions include: from about 35 wt% to about 70 wt% of a polymer resin, wherein the polymer resin comprises at least two polymer resins, wherein at least one of the polymer resins includes a high density polyethylene (HDPE) polymer having a degree of crystallinity of at least 47% as measured by differential scanning calorimetry (DSC); from about 10 wt% to about 40 wt% synthetic graphite; from about 5 wt% to about 15 wt% carbon nanotubes (CNTs); and from about 3 wt% to about 15 wt% conductive carbon black powder.

The utility model provides a bearing device, solid-state battery isostatic pressing equipment and a battery production system, and belongs to the technical field of batteries. The bearing device comprises a base and a sealing cover, the base is provided with a supporting face used for supporting one first side face of the solid-state battery electrode assembly, the sealing cover comprises a frame body and an elastic body connected with the frame body, and the elastic body and the inner surface of the frame body jointly define a containing groove used for containing the solid-state battery electrode assembly. The opening of the accommodating groove is hermetically connected with the base. Wherein the elastic body is arranged opposite to the other first side surface of the solid-state battery electrode assembly and is used for transmitting external pressure to the first side surface during isostatic pressing, and the frame body is arranged opposite to the second side surface and the end surface and is used for preventing the external pressure from being transmitted to the second side surface and the end surface during isostatic pressing. According to the bearing device, the stress direction of the solid-state battery electrode assembly during isostatic pressing can be limited, and the deformation of the length size and the width size of the solid-state battery electrode assembly is reduced.

An explosion-proof valve (1), a battery and a processing method for the explosion-proof valve (1). The explosion-proof valve (1) comprises: an explosion-proof valve body (101), adapted to be provided on a casing of a battery; a thinned region (102), surrounding the explosion-proof valve body (101) in the circumferential direction, the thickness of the thinned region (102) being less than the thickness of the explosion-proof valve body (101); a blasting rib (103), arranged in the thinned region (102), the thickness of the blasting rib (103) being less than the thickness of the thinned region (102), and the blasting rib (103) being adapted to break at a preset pressure value; and a plurality of pits (104), provided at intervals in the thinned region (102) and being spaced apart from the blasting rib (103), so as to reduce the stress of the thinned region (102). When the value of the gas pressure in the battery reaches the preset pressure value, the blasting rib (103) first breaks to form an exhaust channel, thus facilitating discharge of high-pressure gas inside the battery; and the pits (104) in the thinned region (102) can damage crystalline-phase structures on the surface of the thinned region (102), so as to eliminate some stress, thus solving the problem of relatively great stress during the process of forming the explosion-proof valve (1), and preventing structure deformation or breakage.

The invention discloses a tab protection interlayer, a full-tab battery cell and a cylindrical battery with a shell electrode, a non-adhesive area and an adhesive area are arranged on the tab protection interlayer, so that the non-adhesive area is attached to a tab but is not adhered to the tab, and the adhesive area is adhered to a small part of tab root area and is adhered to the end part of a roll core main body at the same time; the probability that the full tab is pulled by the adhesive tape to rebound is reduced to a great extent. When the full tab is kneaded, the interlayer can be pressed towards the center direction of the roll core to form a bending structure, so that the area of an extruded area of the interlayer is reduced, and the interlayer can be adhered to a small part of area of the root part of the tab and an adhesive area on the roll core main body by virtue of the bending structure, so that the roll sleeve and wrinkles are effectively prevented from being extruded by a shell. And the interlayer can also form an elastic sealing ring structure between the shell and the roll core main body, so that the electrolyte is prevented from leaking to the negative electrode end of the cylindrical battery with the positive electrode shell by combining the adhesion sealing effect of the adhesive glue of the interlayer, and the short circuit between the tab and the shell is avoided.

The utility model provides a battery nitrogen charging and shaping device which comprises a shaping support frame, a nitrogen charging device and a nitrogen charging device, the clamping jaw assembly comprises a first reshaping clamp, a second reshaping clamp and a pressing plate which can move in the X-axis direction, and the clamping end of the first reshaping clamp and the clamping end of the second reshaping clamp are attached and pressed to limit the appearance of the battery; the nitrogen charging lifting assembly comprises a nitrogen unit, a nitrogen charging nozzle and a lifting unit, the nitrogen unit is connected with the nitrogen charging nozzle, and the lifting unit is used for promoting the nitrogen charging nozzle to descend so as to penetrate through the through groove to press the top of the battery and input nitrogen to a liquid injection opening of the battery; a first X-axis moving assembly; a second X-axis moving assembly; the battery can be positioned and shaped through the clamping jaw assembly, the concave part of the battery is raised by filling inert gas into the liquid injection port of the battery, and the battery is shaped into a set qualified specification shape, so that the size of a battery product meets the process regulation requirement, and the reject ratio of the product is reduced.

To provide a positive electrode active material with high capacity and good cycle characteristics.SOLUTION: A positive electrode active material exhibits minimal change in crystal structure between the charged and discharged states. For example, a positive electrode active material that has a layered rock-salt crystal structure in the discharged state and a pseudo-spinel crystal structure in the charged state at a high voltage of about 4.6 V exhibits less change in crystal structure and volume between charge and discharge than known positive electrode active materials. When this pseudo-spinel crystal structure is present, diffraction peaks appear at 2θ=19.30±0.20° and 2θ=45.55±0.10° when analyzed by XRD.SELECTED DRAWING: Figure 1

The invention provides a soft package battery cell pretreatment device which comprises at least one group of cutting feeding lines, each cutting feeding line comprises a stepping conveying section, a detection station, a shaping station and a cutting station are arranged in the conveying direction of each stepping conveying section, each cutting station comprises a movably-arranged base and a soft package positioning mechanism, and each soft package positioning mechanism is arranged on the base. The base is provided with at least one group of punching platform deck and a pressing module positioned on the punching platform deck, the lower part of the pressing module is connected with a punching tool bit, and the punching tool bit is used for punching a tab of a soft package battery cell; according to the device, the two groups of cutting feeding lines are arranged to synchronously and sequentially carry out electrical property detection, shaping and tab cutting on the soft package battery cells, detection and cutting work of 1800 soft package battery cells can be completed in one hour, the efficiency is extremely high, the same assembly line can adapt to cutting of multiple groups of soft package battery cells, positioning of the soft package battery cells is accurate, the cutting accuracy is improved, and the production efficiency is improved. And an anti-short-circuit design is specially arranged, so that the short circuit of the battery cell during cutting is effectively prevented.

The invention relates to an aluminum alloy material, an aluminum alloy structural part, a preparation method of the aluminum alloy structural part, a battery box body, a battery system, a power utilization device and application. The aluminum alloy material comprises the following composition elements in percentage by mass: 6%-11% of Si, 0.5%-0.9% of Cu, 0.1%-0.4% of Ti, 0.2%-0.6% of Mg, 0.25%-0.6% of Zn, 0.5%-1.1% of Mn, 0.01%-0.05% of Sr, a matrix element Al and inevitable impurity elements, the aluminum alloy material comprises or does not comprise an Al2Cu phase, and the mass fraction of the Al2Cu phase in the aluminum alloy material can be smaller than or equal to 1.3%. The aluminum alloy material has good mechanical properties and excellent corrosion resistance, can be used as a main body material of the battery box body, and is beneficial to prolonging the service life of the battery box body.

The utility model discloses a pole piece roll-in device and battery cell winding equipment, and the pole piece roll-in device comprises a deviation rectifying assembly which comprises a deviation rectifying roller; the material supporting assembly comprises a supporting plate, the supporting plate is provided with at least two limiting parts and an avoiding part located between the at least two limiting parts, and the limiting parts are used for bearing pole pieces; in the conveying direction of the pole piece, at least one part of the supporting plate can move to the downstream of the deviation rectifying roller from the upstream of the deviation rectifying roller, and the deviation rectifying roller clamps the pole piece through the receding part. According to the invention, the pole piece can be prevented from impacting other mechanisms and being damaged due to free swinging.

According to the automatic jet printing system and method for the battery insulating film, in the jet printing system, the magnetic suspension track is adopted for transporting the to-be-processed battery, so that the transportation efficiency of materials can be effectively improved; through rapid transportation of the magnetic suspension track and mutual cooperation of the surface texturing area, the cleaning area and the surface jet printing area in the battery processing area, the processing efficiency of the battery can be greatly improved, the transportation of the battery in each battery processing area is more stable, and the yield of the battery is higher. In the jet printing method, the model labels of the to-be-processed batteries and the corresponding battery processing parameters are flexibly set, so that the transportation capacity of the battery transportation module and the automatic mutual matching capacity of the battery processing area are improved, and the jet printing method can be suitable for mixed line production of different models of batteries and has relatively high flexibility; and the automation level in the battery production and processing process is effectively improved.

The invention discloses a preparation method of a cement-based structured electrolyte with high ion conductivity and the electrolyte, and the preparation method comprises the following steps: mixing a polymer solution, cement and fine sand to obtain a polymer-cement paste; and performing low-temperature closed maintenance on the polymer-cement paste, and standing at room temperature to obtain the cement-based structured electrolyte. The controlled phase separation technology is adopted, elastic phase separation of a polymer network is carried out earlier than cement hydration, cement becomes a framework of the polymer network in a self-adaptive mode in the hydration process, the interface of the polymer network and the cement is good, and a continuous high-conduction ion channel can be formed; and the preparation process is simple to operate and high in repeatability.

The utility model relates to the technical field of battery production and processing, in particular to an assembling machine for battery processing. Comprising an assembling machine and a forming machine. The assembling machine comprises a disc clamping device, a rubber plug feeding device, a shell feeding device, a pressing device and a transferring device. The disc clamping device comprises a first rotating disc, a guide piece and a clamping assembly, the first rotating disc rotates relative to the guide piece, and the clamping assembly is arranged on the first rotating disc; the rubber plug feeding device, the shell feeding device, the pressing device and the transferring device are sequentially arranged around the first rotating disc, the clamping assembly is used for bearing rubber plugs from the rubber plug feeding device and shells from the shell feeding device, and the clamping assembly abuts against the guiding piece so that the central axis of the rubber plugs can coincide with the central axis of the shells. The pressing device presses an external rubber plug into the shell to form a battery semi-finished product, the transfer device transfers the battery semi-finished product to the forming machine, and the forming machine performs girdling and sealing on the battery semi-finished product; the production automation degree is improved, and the production efficiency and the machining precision are improved.

The utility model relates to lamination equipment. The lamination equipment comprises a lamination table which can be controlled to move and pass through a plurality of lamination stations; a plurality of feeding devices, each lamination station is correspondingly provided with one feeding device, and each feeding device is used for providing material sheets; each lamination station is provided with the corresponding lamination manipulator, and each lamination manipulator is used for grabbing the material sheets provided by the feeding device at the same lamination station; and when the lamination table moves to any lamination station, the lamination manipulator located at the same lamination station as the lamination table stacks the grabbed material sheets onto the lamination table.

The present invention discloses a method for preparing a high-ionic conductivity cement-based structured electrolyte and the electrolyte, comprising: mixing a polymer solution, cement, and fine sand to obtain a polymer-cement slurry; subjecting the polymer-cement slurry to low-temperature, sealed curing, and then allowing it to stand at room temperature to obtain a cement-based structured electrolyte. The present invention utilizes a controlled phase separation technique to enable elastic phase separation of the polymer network prior to cement hydration. During the hydration process, the cement adaptively forms the backbone of the polymer network, resulting in a good interface between the two, capable of forming continuous, high-conductivity ion channels. The preparation process is simple to operate and highly reproducible.

The utility model relates to the technical field of battery manufacturing equipment, and discloses a battery cell clamping jaw which comprises a mounting seat, a grabbing mechanism and a lifting mechanism, the grabbing mechanism and the lifting mechanism are both connected to one end of the mounting seat along a first direction, the grabbing mechanism comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw is connected with the second clamping jaw. The first clamping jaw and the second clamping jaw are arranged on the two sides, in the second direction, of the lifting mechanism correspondingly. The lifting mechanism comprises a connecting seat, a first driving assembly and a lifting part, the connecting seat is connected with the mounting seat, the first driving assembly is connected with the connecting seat, the lifting part is connected with the first driving assembly, the first driving assembly is used for driving the lifting part to move in the first direction, and the lifting part is used for lifting the battery cell. The lifting mechanism is located between the two grabbing mechanisms, the position, between the two ends of the second direction, of the battery cell is lifted by the lifting piece, when the battery cell clamping jaw carries the battery cell, the middle of the battery cell is supported by the lifting piece and is not prone to collapsing, and the reject ratio of battery cell production can be reduced.

The utility model provides paired rubberizing pre-welding equipment which comprises a magnetic drive circulation line used for conveying a battery cell jig, and a feeding mechanism, a binding rubber pasting mechanism, an ultrasonic pre-welding mechanism and a discharging mechanism which are sequentially arranged in the conveying direction of the magnetic drive circulation line, and the magnetic drive circulation line is connected with a fixing jig used for placing a battery cell in a sliding mode. Thus, the battery cell is carried into the fixing jig on the magnetic drive circulation line through the feeding mechanism, and then the fixing jig drives the battery cell to move along the magnetic drive circulation line, so that the battery cell sequentially passes through the binding glue pasting mechanism and the ultrasonic pre-welding mechanism, and production and processing of the battery cell are completed step by step; and the carrying frequency of the battery cell can be effectively reduced, and the appearance damage caused by excessive carrying frequency of the battery cell is avoided as much as possible.

A cover press-fit mechanism for a battery cell, comprising a conveyor belt (2), a bending device (4), an alignment device (5), and a cover press-fit device (6). The bending device (4) is arranged on one side of the conveyor belt (2) at an interval and used for bending tabs (13); the alignment device (5) is arranged as spaced apart on a side of the tab bending device (4) in the conveying direction of the conveyor belt (2) and used for aligning an end cover (11) with a casing (12); and the cover press-fit device (6) is arranged as spaced apart on the side of the alignment device (5) away from the bending device in the conveying direction of the conveyor belt (2) and used for press-fitting the end cover (11) on the casing (12).