408results about "Non-aqueous electrolyte cells" patented technology

The invention discloses a lithium battery processing roundness shaping device and method, and relates to the technical field of lithium battery processing, the lithium battery processing roundness shaping device comprises a positioning frame, and the inner side of the positioning frame is provided with a position adjusting rounding piece connected with a transverse push rod. By arranging the position adjusting and rounding piece and starting the first servo motor, the shortest distance between the edge of the correction roller and the circle center of the supporting plate is adjusted to be equal to the target radius of the battery cell, the telescopic air cylinder is started, the correction roller moves by a certain distance in the direction away from the circle center of the supporting plate, and one-time rounding treatment can be conducted on the battery cell by rotating the correction roller in the same direction; then the telescopic air cylinder drives the movable sleeve plate to move to enable the positioning plate to be attached to the movable sleeve plate again, so that the shortest distance between the correction roller and the circle center of the supporting plate is equal to the target radius of the battery cell, rounding treatment is conducted on the battery cell again through rotation of the correction roller, and therefore part of internal stress of the pole piece and the diaphragm can be released; and material fracture or drape aggravation caused by forced shaping is avoided.

The utility model relates to the field of batteries, and provides a pole piece, a roll core and a battery, and the pole piece comprises a first piece body and a second piece body, the first sheet body comprises a sheet body part and a tab part which are connected with each other and are arranged along a first direction; the width of the second sheet body is smaller than that of the first sheet body in the first direction, the second sheet body is connected to one end of the sheet body part in the second direction, and the second direction is perpendicular to the first direction. Wherein the second sheet body is used for being wound to form an infiltration channel, the sheet body part is used for being wound on the periphery of the second sheet body, the infiltration channel comprises a port arranged close to the tab part, the tab part is used for being bent towards the port and arranged around the port, one end, away from the sheet body part, of the tab part is enclosed to form a through port, and the through port is communicated with the infiltration channel. Due to the fact that the number of the tabs is reduced, the situation that the infiltrating channels are blocked by the tab parts after the pole pieces are wound can be relieved, electrolyte can enter the infiltrating channels more easily, and the electrolyte can infiltrate the pole pieces fully.

The embodiment of the invention provides an electrode assembly and a manufacturing method and equipment thereof, a battery and a power utilization device, the electrode assembly is used for a battery monomer (100) and comprises a first pole piece (1) and a second pole piece (2) which are opposite in polarity, and each of the first pole piece (1) and the second pole piece (2) comprises a main body part (11) and a tab (12) protruding out of the main body part (11), the first pole piece (1) and the second pole piece (2) are wound around a winding axis (K), so that respective main body parts (11) form a winding main body (S); the end part of the winding main body (S) comprises at least one conductive region (121) and at least one liquid guide region (111), the tab (12) is led out from the conductive region (121), is wound for at least one circle and is used for being electrically connected with a terminal (1022) of a battery monomer (100), and the liquid guide region (111) and the conductive region (121) are arranged adjacently along the radial direction of the winding main body (S) and are used for guiding electrolyte to flow into the winding main body (S).

The utility model belongs to the technical field of rubberizing devices, and particularly relates to a lithium battery winding rubberizing mechanism which comprises a base and a two-way screw, mounting frames are arranged on one side of the top of the base, a first groove is formed in the other side of the top of the base, a rubber belt wheel is arranged between the two mounting frames, and a second groove is formed in the other side of the top of the base. A first groove is formed in the front side wall of the base, a two-way screw rod is installed in the first groove in an embedded mode, a first motor is arranged on the front side wall of the base, and one end of the two-way screw rod is connected with a rotating shaft of the first motor. According to the lithium battery rubberizing device, lithium batteries of different specifications can be rubberized accurately, the lithium batteries are prevented from shaking during rubberizing, the rubberizing accuracy and stability are ensured, and the rubberizing quality is greatly improved.

The invention discloses a high-capacity and high-energy-density lithium / carbon fluoride battery and a preparation method thereof, and relates to the technical field of lithium / carbon fluoride batteries. The active carbon with high specific surface is added into the positive electrode slurry, and the porous structure of the active carbon provides more lithium ion transmission channels, so that LiF accumulation is relieved, polarization is reduced, and the discharge capacity and the energy density of the lithium / carbon fluoride battery are improved; and by optimizing the battery process ratio, the prepared lithium / carbon fluoride battery has high thermal conductivity and uniform heat dissipation, the thermal runaway risk is reduced, and the battery safety is improved.

The utility model discloses a flame-retardant lithium battery which comprises an explosion-proof outer shell and a lithium battery core body, the lithium battery core body is arranged in the inner space of the explosion-proof outer shell, a heat dissipation layer is wrapped outside the lithium battery core body, a flame-retardant belt is wrapped on the surface of one side, far away from the lithium battery core body, of the heat dissipation layer, and the flame-retardant belt is arranged in a multi-layer flame-retardant composite mode. The surface of one side, far away from the heat dissipation layer, of the flame-retardant belt is wrapped with a heat insulation layer, the surface of one side, far away from the flame-retardant belt, of the heat insulation layer is connected with the inner wall of the explosion-proof outer shell, the top of the explosion-proof outer shell is provided with a top cover through an assembly mechanism, the top of the lithium battery core is provided with a positive pole through a positive electrode plate, and the upper end of the positive pole is arranged at the top of the top cover. By arranging a series of structures, good heat dissipation, flame retardance and heat insulation performance are achieved, the flame retardant belts are composited in a multi-layer mode, the flame retardant belts not only have good flame retardance, but also are high in viscosity, the supporting structure strength and the tensile strength are high, and the explosion-proof outer shell and the top cover are assembled in an anti-seepage and sealed mode.

The invention provides a lithium-manganese button cell positive electrode ring prepared based on a dry electrode process as well as a preparation method and application of the lithium-manganese button cell positive electrode ring. The method comprises the following steps: premixing electrolytic manganese dioxide (EMD) powder, a conductive agent and low-melting-point polytetrafluoroethylene (PTFE) fibers in a low-temperature environment; carrying out high-speed shearing on the premixed material to form a dry electrode blank material with self-supporting capability; the obtained dry electrode blank material is subjected to hot rolling through a heating roller device, and an obtained film material is conveyed back to the heating roller device to be subjected to second face rolling; wherein the temperature of the roller is controlled within a temperature range which is lower than the melting point of the PTFE fiber but is enough to enable the PTFE fiber to creep, and meanwhile, high pressure is applied; and die cutting and forming. The positive electrode ring of the lithium-manganese button cell prepared by the method has a unique gradient pore structure and a high-conductivity network, and polarization is greatly reduced, so that the cell is more suitable for an application scene of high pulse current discharge.

The embodiment of the invention provides a preparation method of a high-load electrode with a vertical pore channel structure and a battery, which comprises the following steps: grinding and premixing carbon fluoride and a conductive carbon material in proportion, adding a binder, carrying out high-speed ball milling to obtain fiberized powder, and rolling to prepare an electrode material, thereby obtaining the high-load electrode with the vertical pore channel structure. Compounding the carbon fluoride with a current collector through hot rolling to obtain a positive pole piece; and finally, carrying out laser pore-forming treatment on the positive pole piece to obtain the high-load carbon fluoride electrode with a vertical pore channel structure. The pore diameter of the pore channel structure is 10-100 [mu] m, the pore pitch is 1-10 times of the thickness of the electrode material, the pore depth is 50-100% of the thickness of the electrode material, the ion tortuosity of the electrode is effectively reduced and the ion transmission efficiency is improved by constructing a vertical pore channel, meanwhile, high-energy laser induces an in-situ defluorination reaction on the pore wall to generate a high-conductivity sp2 carbon phase, and the conductivity of the electrode is improved. And the limitation of sacrifice conductivity of a mechanical pore-forming technology is broken through.

Provided are cells, such as lithium-sulfur cells, comprising a quasi-solid state liquid electrolyte, wherein the electrolyte comprises a room temperature ionic liquid and an Li salt, and certain concentration subsets of FSI- anions, wherein the electrolyte has ultralow or negligible solvating power for one or more intermediate polysulfide species (Li2Sn, 4 ≤ n ≤ 8).

The utility model provides an auxiliary device for pasting an insulating sheet on a battery and battery processing equipment, and relates to the technical field of battery assembly, the auxiliary device for pasting the insulating sheet on the battery comprises a base, an adjusting mechanism, an objective table, a detection piece and a controller; the adjusting mechanism is connected with the base, the objective table is connected to the adjusting mechanism, the objective table is used for placing an insulation sheet, and the detection piece is arranged in the objective table and used for detecting the relative position of the objective table and the insulation sheet transferring mechanism; the controller is electrically connected with the detection piece and the adjusting mechanism and used for controlling the adjusting mechanism to operate based on the detection result of the detection piece, the position of the objective table is adjusted through the adjusting mechanism, the position of the objective table is made to be matched with the insulation sheet transferring mechanism, and therefore the insulation sheet transferring mechanism transfers the insulation sheet from the objective table, and the insulation sheet transferring mechanism transfers the insulation sheet from the objective table. Therefore, not only is the operation convenient, but also the adjustment accuracy of the position of the objective table can be improved.

The utility model discloses a hot pressing device which comprises a machine frame, an upper-layer hot pressing mechanism, a middle-layer hot pressing mechanism and a lower-layer hot pressing mechanism. The upper-layer hot pressing mechanism comprises an upper-layer installation plate and an upper-layer heating plate arranged at the bottom of the upper-layer installation plate. The middle-layer hot-pressing mechanism comprises a middle-layer mounting plate, a first middle-layer heating plate arranged at the top of the middle-layer mounting plate and a second middle-layer heating plate arranged at the bottom of the middle-layer mounting plate, the lower-layer hot-pressing mechanism comprises a lower-layer mounting plate and a lower-layer heating plate arranged at the top of the lower-layer mounting plate, and the lower-layer mounting plate is arranged at the bottom in the rack; the upper-layer hot-pressing mechanism further comprises two upper-layer heating blocks which are oppositely arranged, and the middle-layer hot-pressing mechanism further comprises two first middle-layer heating blocks which are oppositely arranged, a middle-layer mounting block, two second middle-layer heating blocks which are oppositely arranged and a middle-layer driving assembly. According to the utility model, the hot-pressing shaping time can be shortened, and the hot-pressing shaping efficiency is improved.

The utility model relates to the technical field of battery cell winding equipment, and discloses battery cell winding equipment for lithium battery production, which comprises a working table, a first mounting plate is mounted at the top of the working table, and a first driving motor is mounted on one side, far away from the working table, of the first mounting plate; and the output end of the first driving motor is fixedly connected with a rotating rod. According to the battery cell winding equipment for lithium battery production, the workbench and the first mounting plate are used in cooperation, and meanwhile, a second driving motor is used for driving a first threaded rod to rotate, so that the first threaded rod can drive a sliding block to slide in a sliding groove, and then the position of the second mounting plate can be adjusted; and when the winding roller is taken out, the second driving motor can reversely drive the first threaded rod to rotate, so that the first threaded rod can drive the sliding block to move in the direction away from the workbench, and the winding roller can be taken out conveniently after being wound.

The utility model relates to the technical field of battery production equipment, and discloses a gummed paper shaping device and a production line, the gummed paper shaping device comprises a base, and the base has a first direction and a second direction; the glue taking head is provided with an adsorption surface and a bending surface, the adsorption surface is provided with a negative pressure hole, and the glue taking head can move in the first direction; the side, facing the glue taking head, of the floating block is provided with a supporting face, and when the glue taking head is located at the low position, the adsorption face is attached to the supporting face; the shaping block is provided with a shaping surface, the shaping block is movably assembled in the second direction, and the shaping block has an open state far away from the glue taking head and a contraction state close to the glue taking head; a heating groove is formed in one side, close to the shaping surface, of the hot ironing block, and when the shaping block is in a contraction state, the heating groove is embedded into the joint of the bent surface and the adsorption surface. The heating groove directly heats the folded corner of the gummed paper, so that the shaping effect of the folded corner of the gummed paper is ensured, the gummed paper is prevented from rebounding after being bent, the gummed paper can be attached at a fixed angle after being cooled, and the risk of tab cracking after cell combination is reduced.

The utility model discloses lamination equipment capable of laminating multiple pieces once, which comprises a rack, a positive plate die cutting device, a negative plate die cutting device, a lamination device, a diaphragm unwinding device and a diaphragm pulling device, wherein the positive plate die cutting device and the negative plate die cutting device are oppositely arranged front and back; the positive plate die cutting device comprises a positive plate unwinding mechanism, a positive plate V-angle punching mechanism, a positive plate cutting mechanism, a positive plate detection mechanism and a positive plate conveying line which are sequentially arranged at the top end of the rack from left to right; the negative pole piece die cutting device comprises a negative pole piece unwinding mechanism, a negative pole piece V-angle punching mechanism, a negative pole piece cutting mechanism, a negative pole piece detection mechanism and a negative pole piece conveying line which are sequentially arranged at the top end of the rack from left to right; the battery cell cutting machine further comprises a positive plate pre-positioning device, a negative plate pre-positioning device, a carrying device, a battery cell cutting device and a discharging manipulator. According to the utility model, the production efficiency is improved, and the production cost is reduced.

This invention discloses a fluorinated carbon / halogenated graphene quantum dot composite material, its preparation method, and its applications, belonging to the field of lithium / fluorinated carbon batteries. In this invention, powdered halolated graphene quantum dots and carbon materials are separately dispersed in an organic solvent. A microwave solvothermal method is used, followed by solvent removal to obtain the carbon material / halogenated graphene quantum dot composite material. Then, a gas-phase fluorination method is used to prepare the fluorinated carbon / halogenated graphene quantum dot composite material. The resulting composite material can be used as the positive electrode active material for lithium / fluorinated carbon primary batteries. This invention can improve the capacity performance and discharge capability under high current of lithium fluorinated carbon batteries, while also improving their shelf stability.

The invention relates to a sulfide modified carbon fluoride composite electrode and a preparation method thereof, and belongs to the technical field of battery material preparation. Sulfide and a carbon fluoride material are subjected to ball milling to obtain a sulfide modified carbon fluoride composite material; adding the composite material and a conductive agent into a polymer binder solution to obtain sulfide modified carbon fluoride composite electrode slurry; and coating a current carrier with the slurry, and carrying out vacuum drying to obtain the sulfide modified carbon fluoride composite electrode. According to the invention, the surface morphology and conductive structure of the carbon fluoride material particles are modified by the high-conductive sulfide through a simple ball milling method. The sulfide has multivalent states and structural defect vacancies, not only stabilizes a high discharge platform of the carbon fluoride material at the initial stage of discharge, but also increases a reaction platform at the final stage of discharge, so that the discharge capacity of the carbon fluoride material is effectively improved. And meanwhile, the conductivity and the ion migration rate of the carbon fluoride material are improved, so that the composite electrode has a high working voltage platform and energy output performance under a high-rate discharge condition.

The utility model belongs to lithium sub -power type battery technical field discloses a kind of lithium sub -power type battery negative electrode structure, including upper and lower two negative electrode lithium strips, one layer nickel strip current collector bar and one layer nickel hole current collector net are fixedly arranged between two negative electrode lithium strips;The utility model connects with nickel hole current collector net when the interlayer structure of negative electrode lithium strip-nickel strip current collector bar-nickel hole current collector net-negative electrode lithium strip can also guarantee when breaking down due to the consumption of reaction at the time of reaction to end time;Nickel strip current collector bar and nickel hole current collector net between using spot welding mode connection, nickel strip current collector bar and nickel hole current collector net are pressed together with lithium strip using roll pressing mode, guarantee the firm reliable connection and sufficient contact between both, effectively improve the utilization of negative electrode active material, the load output ability and the safety performance after battery discharge of battery.

The invention relates to a defoaming and feeding system and a lithium battery production line. The defoaming and feeding system comprises a transfer tank, a storage trolley, a defoaming machine, a loading trolley, a first driving valve, a second driving valve, a third driving valve and a cooling unit, according to the defoaming and feeding system, automatic conveying of slurry can be achieved, the defoaming machine is arranged to conduct defoaming treatment on the slurry, bubbles are prevented from appearing on the surface of a lithium battery negative electrode roll, and the qualified rate of products is increased; and meanwhile, the cooling unit is arranged for controlling the temperature of the defoamed slurry, so that the flowing activity of the slurry can be always kept in a preset range, the width of the lithium battery negative electrode roll coating can reach the standard, the qualification rate of products is further improved, the productivity is further improved, and the production cost is reduced.

The utility model provides a battery cell lower plastic cement dislocation detection tool, and belongs to the field of new energy batteries. The tool comprises a bottom plate, a top plate and detection nails, the top plate and the bottom plate are arranged in parallel at intervals, the detection nails are vertically arranged on the bottom plate, detection holes matched with the detection nails are formed in the top plate, and the detection nails are arranged in the detection holes in a penetrating mode. By adopting the battery cell lower plastic cement dislocation detection tool provided by the embodiment of the utility model, the problem of low identification efficiency in the prior art can be solved.

The embodiment of the utility model provides an air bag tray inflating and deflating device and a lithium battery production system, and relates to the field of lithium battery production. The air bag tray inflation and deflation device comprises a supporting piece, a sliding piece, a floating piece and an inflation and deflation connector. Wherein the sliding part is connected to the top end of the supporting part, the floating part is connected between the sliding part and the inflation and deflation connector, the sliding part is used for driving the inflation and deflation connector to ascend and descend, and the floating part is used for driving the inflation and deflation connector to horizontally float. During inflation and deflation operation, the supporting piece is used for playing a supporting and fixing role, the sliding piece can drive the inflation and deflation connector to ascend and descend so as to be close to or away from the air bag tray, and the floating piece is used for conducting positioning correction through floating in the connection process of the inflation and deflation connector so that the connection positioning efficiency of the inflation and deflation connector can be improved. And the inflation and deflation operation efficiency is further improved. The lithium battery production system comprises the air bag tray inflation and deflation device and has all functions of the air bag tray inflation and deflation device.

To provide a negative electrode active material for a fluoride ion battery that can be formed from readily available materials, a fluoride ion battery having such a negative electrode active material, a method for manufacturing such a negative electrode active material for a fluoride ion battery, and a method for manufacturing a fluoride ion battery having such a negative electrode active material.SOLUTION: A negative electrode active material for a fluoride ion battery according to the present disclosure is aluminum carbide.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of battery manufacturing, and provides a positive pole piece of a lithium-manganese dioxide battery and a manufacturing process and application of the positive pole piece. A polymer ion channel coating is arranged on the surface of a positive active layer of the positive pole piece; and the polymer ion channel coating contains a polymer ion channel with a porous structure. By forming the ion channel layer with the porous structure on the surface of the positive electrode, the wettability of the surface of the positive electrode plate to electrolyte can be improved while the stability of the positive electrode is maintained. Moreover, the reaction activity of a polymer ion channel is low, the polymer ion channel cannot react with a positive electrode active substance in the positive electrode or an electrolyte and the like generally, the stability is good, the problem that electrolyte on the surface of the positive electrode volatilizes quickly under the long-term high-temperature condition of a primary battery can be better solved through coating and film forming, and the electrolyte wettability of the surface of the positive electrode is more effectively improved.

The utility model relates to the field of production equipment, in particular to a hot-pressing shaping device and battery hot-pressing equipment. The hot-pressing shaping device comprises a pressing mechanism and a shaping mechanism; the shaping mechanism comprises a first side pressing piece and a second side pressing piece, and the first side pressing piece and the second side pressing piece are respectively opposite to two arc-shaped side edges of the battery cell; the pressing mechanism is used for pressing the flat and straight surfaces of the battery cells; the downward pressing mechanism is provided with a first pushing block and a second pushing block so as to synchronously push the first side pressing piece and the second side pressing piece to be close to the corresponding arc-shaped side edges during downward pressing, and therefore the arc-shaped side edges are pressed and shaped. According to the hot-pressing shaping device provided by the invention, the first side pressing piece and the second side pressing piece can be pushed to synchronously apply pressure to the arc-shaped side edge of the battery cell while the downward pressing mechanism applies pressure and shapes the flat and straight surfaces of the battery cell, pressure applying and shaping of the arc-shaped side edge can be realized without arranging a redundant driving mechanism, the cost is saved, and the hot-pressing shaping device is simple in structure and convenient to maintain and use.

The invention relates to the technical field of chemical batteries, in particular to a preparation method of a high-performance lithium primary battery positive plate. The method comprises a process of coating slurry on a metal belt to prepare a pole piece, and the metal belt is prepared by the following steps: S1, carrying out roughening treatment on the surface of a stainless steel belt; s1, the stainless steel band obtained in the step S1 is subjected to punching and drawing to be machined into a rhombic metal net; s2, the metal net obtained in the step S2 is placed in an acid solution to be cleaned, surface impurities are removed, and S3, aluminum plating is conducted on the surface of the cleaned metal net. The aluminum-plated composite net is used in the positive plate, part of manganese dioxide is embedded into an aluminum layer in the rolling process of a compression roller after slurry coating, an active matter is in closer contact with a current collecting net, and the contact resistance is further reduced. Therefore, the positive plate is high in density and low in internal resistance, and the obtained battery is high in capacity, high in energy density and high in large-current load capacity.

The utility model discloses a battery cover plate liquid injection hole anti-sealing structure and a battery, and relates to the technical field of battery liquid injection. The device specifically comprises a cover plate with a liquid injection hole, and further comprises a convex piece and a flow guide groove, and the convex piece is arranged at the liquid injection hole of the cover plate; the flow guide groove is formed in the peripheral wall of the convex piece, extends towards the liquid injection hole and is communicated with the liquid injection hole; an adhesive tape can be attached to the side, away from the cover plate, of the protruding piece and at most covers part of the flow guide groove. The adhesive tape can be attached to one side of the protruding part, if the adhesive tape is attached to the protruding part in a deviated mode, the flow guide groove is formed in the protruding part, the liquid injection hole and the flow guide groove are combined, even if the adhesive tape is attached to the protruding part, the liquid injection hole cannot be completely sealed, and if electrolyte is injected, the electrolyte flows into the battery from the liquid injection hole and the flow guide groove, so that the electrolyte cannot be completely sealed. Therefore, electrolyte can be injected into the battery, and water vapor in the battery can be timely discharged from the electrolyte injection hole and the diversion trench when the battery is baked at a high temperature.

This invention provides a thick electrode positive electrode sheet, its preparation method, and a primary battery. The method includes the following steps: first, mixing a positive electrode active material, a conductive agent, and a binder resin to obtain a mixture; then, subjecting the mixture to fibrosis treatment to obtain a fibrous mixture; next, granulating the fibrous mixture with a granulating agent to obtain a precursor material, wherein the granulating agent is a liquid with a vapor pressure not less than 0.2 mmHg; finally, subjecting the precursor material to roll forming to obtain the thick electrode positive electrode sheet. The preparation method provided by this invention can be widely applied to battery systems that require the use of current collectors to fabricate thick electrodes (>500 μm), and solves problems such as the difficulty in continuous automated production of thick electrode sheets using current collectors, high electrode powder shedding rate, and uneven thickness.

The utility model relates to the technical field of battery production equipment, in particular to a battery packaging device. Comprising a packaging base, a lower sealing head arranged on the packaging base, an upper sealing head arranged above the lower sealing head in a lifting mode, a packaging driving mechanism arranged on the packaging base and used for driving the upper sealing head to be close to or away from the lower sealing head, and a supporting table arranged on the outer side of the lower sealing head. The pressing plate is arranged above the supporting table in a lifting mode and located on the outer side of the upper sealing head, and the pressing driving mechanism is arranged on the packaging base and used for driving the pressing plate to be close to or away from the supporting table. Before the battery is packaged, the battery is tightly pressed by the pressing plate, so that the stability and the quality of packaging the battery are improved, and compared with the prior art that a packaging clamp is matched with a packaging mechanism to package the battery, the battery packaging device can reduce the cost.

An electrode sheet (1), a jelly roll (100) and a battery (1000). The electrode sheet (1) comprises a first sheet body (10) and a second sheet body (20), wherein the first sheet body (10) has a sheet body portion (11) and a tab portion (12), the width of the second sheet body (20) is less than the width of the first sheet body (10), and the second sheet body (20) is connected to one end of the first sheet body (10). The second sheet body (20) is wound to form a wetting channel (101). The wetting channel (101) comprises a port arranged close to the tab portion (12). The sheet body portion (11) is wound around the periphery of the second sheet body (20), the tab portion (12) is configured to be bent towards the port and arranged around the port, and the end of the tab portion (12) away from the sheet body portion (11) encloses to form a through opening (102) in communication with the wetting channel (101). The through opening (102) is in communication with the wetting channel (101), thereby helping an electrolyte to thoroughly wet the electrode sheet (1).

The utility model provides a winding device and relates to the technical field of battery cell manufacturing equipment. The winding device comprises a support, a winding mechanism, a first driving mechanism and a second driving mechanism. The winding mechanism comprises a support, a winding needle piece and a driving piece, the support is rotatably arranged on the support, the first driving mechanism drives the support to rotate, and therefore the winding needle piece arranged on the support can change the position, and the winding needle pieces located at different stations can conduct battery cell winding operation, tail glue pasting operation or battery cell discharging operation conveniently. Under the condition that the corresponding winding needle piece moves to the battery cell winding station, the driving piece drives the winding needle piece to rotate, so that the battery cell winding action is realized; the second driving mechanism drives the winding needle piece to move in the axial direction so that the winding needle piece can achieve needle inserting and needle pulling operation.

The invention provides a lithium-manganese battery. The lithium-manganese battery comprises a positive pole piece, a negative pole piece, a diaphragm and an electrolyte, a positive active material in the positive pole piece comprises manganese dioxide, and the negative pole piece comprises a lithium metal negative pole; the diaphragm comprises a base film and a functional layer positioned on the side, facing the positive pole piece, of the base film; and the functional layer comprises an inorganic solid electrolyte. According to the lithium-manganese battery disclosed by the invention, the diaphragm structure with the inorganic solid electrolyte functional layer is adopted, so that the conduction rate of lithium ions is improved, and meanwhile, the size change of the diaphragm caused by temperature fluctuation or other factors is also remarkably reduced, so that the surface shrinkage rate of the diaphragm is adjusted; and moreover, the side reaction of the lithium metal negative electrode in the use process is effectively inhibited, and the performance of the lithium-manganese battery is improved.