75results about How to "Improve discharge performance" patented technology

The invention belongs to the field of chemical energy materials, and discloses a modified lithium iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the steps that a lithium source, an iron source and a zinc source are added into water to be stirred and dissolved, then a phosphorus source, a network gelling agent and an initiator are added, stirring reaction is conducted, and wet gel is obtained; and pre-decomposing the wet gel, grinding and sintering to obtain the modified lithium iron phosphate positive electrode material. According to the invention, Zn is introduced into the lithium iron phosphate positive electrode material, so that the olivine structure of the positive electrode material and the purity and consistency of the lithium iron phosphate positive electrode material are ensured; and Zn is oxidized into Zn < 2 + > to be doped into a lithium iron phosphate structure, so that vacancies are formed, the lithium ion diffusion rate and conductivity of the lithium iron phosphate positive electrode material are improved, the rate cycle performance of the prepared modified lithium iron phosphate positive electrode material is stable, and excellent discharge performance and stable rate cycle performance can be kept at low temperature.

The invention discloses an electric automobile integrated CO2 thermal management system which comprises a refrigerant loop and a cooling liquid loop. The refrigerant loop comprises a WCC, a first electronic water pump, an evaporator, a warm air core body, an electric compressor, an outdoor air cooler, a first electronic expansion valve, a second electronic expansion valve, a third electronic expansion valve, a fourth electronic expansion valve, a first stop valve, a second stop valve and a gas-liquid integrated separator; the cooling liquid loop comprises an electric drive loop and a battery loop. According to the system, integration of a cooling liquid loop is achieved, and the risk of leakage of refrigerants is reduced. The invention further discloses a control method of the integrated CO2 heat management system of the electric automobile, various working modes can be achieved, the heating and refrigerating requirements of a passenger compartment of the electric automobile are met, meanwhile, refined management such as motor cooling, waste heat recovery and cooling and heating of a power battery can be conducted, and the system is suitable for popularization and application. An integrated framework of a heat pump air conditioner, a battery and an electric drive heat management system is achieved.

The invention provides a double-layer double-high type electrode, a reserve lithium battery and a preparation method thereof, the double-layer double-high type electrode comprises a current collector, a first active layer and a second active layer, the first active layer is located between the current collector and the second active layer, the first active layer contains an energy type active material, and the second active layer contains an energy type active material. The second active layer contains a pre-charged power type active material, and the open-circuit voltage difference between the energy type active material and the pre-charged power type active material is less than or equal to 0.5 V. The invention provides the double-layer double-high type electrode for the reserve lithium battery, which is quick in activation, high in energy density and good in rate capability, an efficient conductive network is constructed, and the discharge performance of the battery is improved; the porosity of the second material layer is regulated to be greater than that of the first material layer, and the seepage flow guide grooves are dug in the surface of the second material layer, so that the electrolyte infiltration rate of the electrode is improved, and the activation time is shortened.

The invention provides a preparation method of spherical iron phosphate, and relates to the technical field of lithium ion batteries, and the preparation method comprises the following steps: S1, one-step reaction: carrying out parallel flow on an iron salt solution, a phosphorus salt solution and ammonia water according to a molar ratio of 1: (0.8-1.2): (0.8-1.1) to generate amorphous iron phosphate slurry; adding ammonia water into the iron phosphate slurry to adjust the pH value to 1.5-2.5; s2, membrane washing; s3, a second-step reaction: adding pure water into the washed iron phosphate slurry, adjusting the iron concentration to 0.5-1.2 mol / L, adding a phosphoric acid solution, heating to 90-120 DEG C, and controlling the heat preservation time for 30-90 minutes after the material is converted into a white material, so as to obtain white slurry; s4, washing: taking a filter cake; s5, drying: generating iron phosphate dihydrate; s6, calcining: spherical iron phosphate is generated, and the iron phosphate is successfully converted from a traditional olive type, peanut type or honeycomb type to a spherical type through the preparation method provided by the invention.

The invention relates to the technical field of lithium ion batteries, in particular to an in-situ dispersed lithium ion battery positive electrode slurry and a preparation method thereof.The preparation method comprises the steps that firstly, a binder and a solvent are fully dissolved to form a glue solution, polyacrylic acid and a sodium source are introduced to be dissolved for in-situ dispersion to obtain a dispersion stock solution, then a dispersing agent B is added, stirring is conducted, and the in-situ dispersed lithium ion battery positive electrode slurry is obtained; the preparation method comprises the following steps: adding a dispersing agent into a reaction kettle, carrying out hydrothermal reaction at a certain temperature for a certain time to obtain a dispersion final solution, adding a conductive agent and an active material into the dispersion final solution, carrying out high-speed granulation stirring, adding a solvent after stirring, adjusting to a proper slurry viscosity, defoaming, and screening to finally prepare the highly dispersed lithium ion battery positive electrode slurry. According to the lithium ion battery positive electrode slurry prepared by the method, the dispersity and stability of the slurry can be greatly improved, the uniformity of the interior of a pole piece is realized, the conductivity of the pole piece is improved, the internal resistance of the battery is reduced, the excellent rate capability and cycle performance of the battery are further realized, and the discharge capability of the battery in a low-temperature environment is improved.

The invention discloses slurry for a positive electrode of a lithium iron phosphate battery, an electrode of the lithium iron phosphate battery, the lithium iron phosphate battery and a manufacturing method of the lithium iron phosphate battery. The slurry comprises the following components in parts by weight: 95-97 parts of an active lithium iron phosphate material; 0.1 to 1 part of rare earth oxide; 1-2 parts of acetylene black; 0.5-2 parts of a conductive agent; 1-5 parts of a binder; 2-3 parts of a positive electrode organic auxiliary agent; 30-40 parts of a positive electrode solvent; the active lithium iron phosphate material is a lithium iron phosphate material doped with a ternary material, the ternary material is one of a high-nickel ternary material LiNi < 0.8 > Co < 0.15 > Al < 0.05 > O < 2 >, LiNi < 0.815 > Co < 0.15 > Al < 0.035 > O < 2 >, LiNi < 0.88 > Co < 0.09 > Al < 0.03 > O < 2 > and lithium nickel cobalt aluminate with the Ni molar ratio being 0.9 or above, the chemical general formula of the lithium nickel cobalt aluminate is LiNi < x > Co < y > Mn < 1-x-y > O < 2 >, and the positive electrode organic auxiliary agent is an organic mixed solution formed by isopropanolamine, glycol and polyethylene glycol. The preparation method has the beneficial effects that the slurry is good in stability, the content of an active material of the positive electrode slurry is high, the electrochemical performance of the battery is remarkably improved, and the discharge specific capacities of the whole battery at 0.5 C multiplying power and 1C multiplying power are respectively greater than 166mAh / g and 159mAh / g.

The invention discloses a catalyst for improving discharge performance of a metal fuel cell through phase change of a rare earth induced manganese-based material and a preparation method, tetravalent rare earth cerium is doped into the manganese-based material through a hydrothermal method, uniform combination of cerium and manganese dioxide is realized in the process, crystal phase transformation of manganese dioxide is successfully induced, and the discharge performance of the metal fuel cell is improved. Beta-phase MnO2 which is stable but poor in electro-catalytic performance is converted into alpha-phase MnO2 with higher activity and better conductivity. The phase change greatly improves the electrochemical activity of the material. The number of active sites is insufficient due to the compact crystal structure of the beta-phase MnO2, and the open structure of the alpha-phase MnO2 increases the surface area and the reaction active sites, so that the catalytic performance of the oxygen reduction reaction is optimized.

The invention relates to the technical field of conductive connection, in particular to a grounding discharge device for power distribution network line maintenance, which comprises a supporting box, a separation ring is arranged in the supporting box, the lower end of the separation ring penetrates through the supporting box, a water storage cavity is formed between the separation ring and the supporting box, and a water storage conductive device located in the separation ring is arranged on the supporting box. The water storage and electricity conduction device comprises a water supporting plate arranged in the water storage cavity in a sliding mode, and an adjusting screw rod in threaded connection with the water supporting plate is rotationally arranged on the supporting box in a penetrating mode. Under the action of the sealing ring, the sealing barrel and the hard ground form a sealing area, then conductive liquid penetrates through the water inlet hole formed in the upper end of the separation ring to enter the upper end of the sealing barrel and then enters the sealing area from the communicating hole formed in the upper end of the sealing barrel, and the conductive liquid can make full contact with the ground of the sealing area to discharge electricity.

The invention relates to the technical field of electrolyte preparation, and discloses a lithium ion battery electrolyte capable of ensuring low-temperature discharge characteristic, which comprises the following components in percentage by mass: 25% of propylene carbonate (PC), 35% of dimethyl carbonate (DMC), 20% of gamma-butyrolactone (GBL), 20% of ethyl acetate, 1.0 mol / L of lithium salt bis (trifluoromethanesulfonimide) (LiTFSI), 3% of additive 1, 3-propane sultone (PS) (mass fraction: 0.1% of sodium hydroxide (mass fraction: 0.1% of sodium hydroxide), and the balance of water. According to the present invention, the low temperature performance of the solution is improved, the unique solvent formula and the unique solvent ratio enable the electrolyte to have good fluidity in the low temperature environment, and the freezing point of the electrolyte is effectively reduced so as to ensure that the lithium ions can smoothly migrate between the electrodes at the low temperature, such that the lithium ion battery performance is improved, and the lithium ion battery performance is improved. The discharge performance of the battery under a low-temperature condition is obviously improved, and the application scene of the lithium ion battery is expanded.

The invention discloses a device for degrading SF6 (sulfur hexafluoride) by a liquid electrode dielectric barrier discharge reactor, which comprises a gas source communicated with a uniform mixing chamber; the reactor mechanism is communicated with the gas outlet end of the uniform mixing chamber; wherein the gas source is used for conveying SF6 and diluent gas into the uniform mixing chamber in proportion, and the reactor mechanism can be used for degrading the gas; according to the invention, accurate gas dilution is realized, and the dilution ratio of SF6 is controlled in real time; the degradation efficiency of SF6 can be optimized through the uniform mixing chamber; the reactor mechanism can improve the discharge effect of a reaction system, meanwhile, heat loss caused by heating of a common metal electrode in the reaction process is reduced, and efficient degradation of SF6 is achieved; the degradation efficiency of the SF6 waste gas is improved, and deeper-degree treatment on products obtained after SF6 degradation is achieved.

The invention relates to a composite material current collector, a preparation method thereof and a lithium metal battery. The composite material current collector comprises a current collector material and an optional solid electrolyte material, the composite material current collector is of a double-layer structure, one layer is of an electrode three-dimensional structure containing finger-shaped holes, and the other layer is of a compact electrode structure. A battery assembled by using the composite material current collector provided by the invention has more excellent electrochemical performance, and shows higher discharge capacity, higher discharge power and longer cycle stability.

The invention relates to the technical field of magnesium-air battery electrode materials, and discloses a magnesium-air battery negative electrode material and a preparation method thereof, and the magnesium-air battery negative electrode material comprises the following components by mass: 99.9% of magnesium and 0.1% of germanium. The non-toxic and environment-friendly element germanium is added, and the total adding amount of the element germanium does not exceed 0.1%, so that the cost of the negative electrode material is reduced, the reaction kinetics of the positive electrode is improved, and no second phase is generated. The alloy composed of magnesium and germanium does not have a precipitated phase, has a uniform micron-sized equiaxed grain structure, has an average recrystallization grain size of 16.28 + / -0.29 [mu] m, and has good discharge performance and high dissolution kinetics.

The invention belongs to the technical field of magnesium air battery electrode materials, and particularly relates to a magnesium air battery anode material Mg-Sr-Ge ternary alloy which comprises the following components in percentage by mass: 0.1-2.0 wt% of strontium (Sr), 0.1-2.0 wt% of germanium (Ge) and the balance of magnesium (Mg). The preparation process comprises the following steps: weighing a pure magnesium ingot, high-purity germanium and an Mg-20Sr alloy according to the required proportion, and then smelting by using a vacuum induction furnace under the protection of argon; after smelting is completed, the alloy is cooled to the room temperature along with the furnace, and as-cast alloy is formed and can be directly used for a battery anode. Compared with a commercially available AZ31 anode material, the Mg-Sr-Ge ternary alloy anode disclosed by the invention shows higher discharge voltage, specific capacity and specific energy. The alloy material is low in preparation cost and simple in smelting process, can effectively improve the discharge performance of the magnesium air battery, and has a wide application prospect.

The utility model provides a kind of double-layer module structure, it is related to new energy battery technical field, including first cold plate and second cold plate, the inside of first cold plate and second cold plate is all strip array and has welding fixture, and gap is left between the welding fixture of adjacent top and bottom, and gap is equal, and electric core is installed in welding fixture, and electric core is in stacked arrangement, whole module structure is constituted by the sandwich structure of first cold plate, second cold plate and connecting plate, cooperate cooling radiating plate and heat-absorbing plate surface, realize multiple surface cooling function, significantly improve cooling efficiency.Electric core generated heat is transferred to heat-absorbing plate surface by heat conduction end, and is taken away by cooling liquid flow channel and micro heat dissipation channel high efficiency, simultaneously, first cold plate and second cold plate are synergistically radiated from two sides, effectively reduce the temperature of top pole and busbar area, solve the problem of limited cooling efficiency of single surface cooling scheme in high heat generation scene in background technology.

The invention discloses a lithium carbon fluoride battery electrolyte, a preparation method thereof and a lithium carbon fluoride battery, and belongs to the technical field of lithium / carbon fluoride primary batteries. The lithium carbon fluoride battery electrolyte comprises a lithium salt and a monofluoro-substituted short-chain ether solvent. Compared with a non-fluorinated ether solvent, the monofluoroether solvent has good compatibility with a carbon fluoride positive electrode and a metal lithium negative electrode, so that the battery has good discharge performance. Compared with a polyfluoro-substituted ether solvent, the monofluoro substituent group (-CH2F) obviously improves the ionic conductivity of the lithium carbon fluoride battery electrolyte at low temperature, and meanwhile, the monofluoro substituent group (-CH2F) has weak solvation energy at low temperature, so that the discharge platform of the battery at low temperature is obviously improved, and the discharge capacity of the battery is improved.

The application relates to the discharge device structure field of an ion generator, in particular to a single-crystal silicon discharge needle structure. The single-crystal silicon discharge needle structure comprises a main body, a bottom cover, a discharge needle mechanism, wherein the main body is provided with a first through hole; the bottom cover is sleeved on the discharge needle main body; the discharge needle mechanism comprises a fixing assembly, an end cover, a copper pipe and a discharge needle; the fixing assembly is assembled at one end of the main body and located in the first through hole; one end of the end cover is fixed in the fixing assembly; the copper pipe is located in the first through hole; one end of the discharge needle is located in the copper pipe; one end of the copper pipe is sleeved with the end cover, and the other end has a reduced inner diameter for the tip of the other end of the discharge needle to pass through and be located in the first through hole; the discharge needle is made of single-crystal silicon. The application can ensure stable discharge performance and prolong the service life, and the discharge needle structure is relatively simple in assembly and maintenance, so that the use cost and difficulty can be reduced.

The present application relates to the field of battery technology, and in particular to a positive electrode sheet for a secondary battery and a secondary battery, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode active material coated on the surface of the positive electrode current collector, wherein the positive electrode active material comprises lithium iron phosphate and single-walled carbon nanotubes, wherein the single-walled carbon nanotubes are dispersed in the lithium iron phosphate of the positive electrode sheet, and part of the single-walled carbon nanotubes are attached to the surface of lithium iron phosphate particles; the weight proportion A of the single-walled carbon nanotubes, the specific surface area BET of the single-walled carbon nanotubes in the positive electrode sheet, and the tube length distribution width D of the single-walled carbon nanotubes satisfy the following relationship: 1.8≤100A*BET / D≤23.5; the unit of the specific surface area BET of the single-walled carbon nanotubes is m 2 / g, wherein the weight proportion A of the single-walled carbon nanotubes refers to the weight proportion of the single-walled carbon nanotubes in the positive electrode sheet portion excluding the positive electrode current collector. The present application can significantly improve discharge performance and reduce temperature rise, thereby improving the safety performance of the battery cell.

The invention provides a lithium manganate positive electrode material and a preparation method thereof, a positive plate and a battery, and belongs to the technical field of batteries, the structural general formula of the lithium manganate positive electrode material is Li1 + xMyMn2-(x + y) O4, x is greater than or equal to 0.1 and less than or equal to 0.33, y is greater than or equal to 0.005 and less than or equal to 0.01, M comprises at least one of Co, Ni, Cr and Fe, and the 111 crystal face diffraction peak intensity I111 of the lithium manganate positive electrode material is greater than 3100. According to the lithium manganate positive electrode material, the energy density, the effective gram volume and the structural stability of the lithium manganate positive electrode material, especially the performance of the lithium manganate positive electrode material in a low-voltage range of 2.0-3.3 V, are improved through lithium enrichment, doping of a proper proportion of M elements and synergistic cooperation of 111 crystal face diffraction peak intensity of the lithium manganate positive electrode material, so that the energy density, the effective gram volume and the cycling stability of the battery are improved, and the battery performance is improved. The battery service life is prolonged.

The invention relates to the technical field of zinc-air batteries, in particular to a zinc-air battery. The air electrode plate in the zinc-air battery has waterproof and breathable functions, and the structural design of the zinc-air battery can ensure that more air enters, so that the contact area of the air electrode plate and the electrolyte is maximized, the two surfaces of the negative electrode of the metal zinc paste battery cell can fully react, and the service life of the zinc paste battery cell is prolonged. Therefore, the zinc-air battery with the structure is excellent in discharge performance, the specific capacity can reach more than 700Ah / kg under the state that the constant voltage is 0.9 V, the discharge energy density can reach more than 670Wh / kg, the 24h current is more than 3A, and the 72h current is more than 1A.

The present disclosure relates to a groove-type mold for coating an active material layer on a foil, an electrode manufacturing method for manufacturing an electrode using the groove-type mold, and an electrode manufactured using the groove-type mold. According to the present disclosure, a groove mold is configured to move in a width direction with respect to a foil.

The cylindrical alkaline battery comprises a metal shell, a carbon rod, a positive terminal, a negative terminal and an explosion-proof plate, a sealing plate is arranged on one side of the bottom of the positive terminal on the metal shell, and the explosion-proof plate is arranged on one side of the bottom of the sealing plate on the metal shell. The arc-shaped protruding structure of the explosion-proof plate is far away from one end of the positive terminal, a plurality of arc-shaped grooves are evenly formed in the periphery of the bottom of the sealing plate, a plurality of arc-shaped protruding points matched with the arc-shaped grooves are evenly arranged on the top of the explosion-proof plate and located on the circular ring, and the arc-shaped protruding points are placed in the arc-shaped grooves in a limited mode. The connection force is improved through the explosion-proof plate and the sealing plate, the situation that the ultrahigh constant-current discharge performance is influenced by deviation of an internal carbon rod is avoided, the connection stability performance between the explosion-proof plate and the sealing plate is improved through matching and alignment of arc-shaped convex points on the explosion-proof plate and arc-shaped grooves in the sealing plate, and the situation that the internal discharge performance is influenced by external vibration is avoided; and the structure is simple and stable.

The utility model provides a current divider, a battery pack and a vehicle. The current divider comprises a conducting bar, a main control board and a connector, the conducting bar comprises a first surface and a second surface, and the first surface and the second surface are oppositely arranged along the thickness direction of the conducting bar; wherein a welding area is arranged on the first surface; the main control board is connected to the second surface. The connector is connected to the side, away from the conducting bar, of the main control board. According to the shunt, the welding area on the first surface is welded with the external connecting terminal, so that current transmission between the shunt and the external connecting terminal is realized, the influence caused by assembly tolerance and manufacturing tolerance can be effectively avoided, the contact internal resistance of a connecting part is reduced, and the service life of the shunt is prolonged. Meanwhile, connection between the shunt and the BMS board card is changed into direct connection through the connector, so that the connection process between the shunt and the BMS board card is simplified, the risk of electromagnetic interference is reduced, and the integration rate of components in the battery pack is improved.

The present invention discloses an energy storage system and a discharge control method thereof, an energy storage controller, and a storage medium, wherein the discharge control method of the energy storage system comprises: when it is determined that the energy storage system has not reached a preset discharge cut-off condition, obtaining the actual discharge current of each battery pack; when the actual discharge current of any battery pack is greater than the current discharge limit current of the battery pack, updating the current discharge current limit of the energy storage system to the sum of the actual discharge currents of multiple battery packs, and gradually reducing the current discharge current limit of the energy storage system; in the process of gradually reducing the current discharge current limit of the energy storage system, if the actual discharge current of each battery pack is less than or equal to the corresponding current discharge limit current, taking the sum of the actual discharge current of each battery pack as the current discharge current limit of the energy storage system, thereby avoiding the problems of over-discharge and insufficient discharge power of the battery packs in the energy storage system and improving the discharge capacity of the energy storage system.

The invention relates to a secondary battery and an electric device. The secondary battery comprises a positive pole piece, a negative pole piece and a diaphragm; the negative pole piece comprises a negative current collector and a negative active layer located on the surface of the negative current collector, the negative active layer comprises a negative active material and a solid electrolyte, and the solid electrolyte comprises an NASICON type compound and a garnet type compound. The electrode assembly can reduce the current caused by needling of the battery and improve the safety of the battery.

A negative electrode material for a lithium-ion secondary battery comprising graphite particles satisfying x ≥2.0 when a compressive load required to consolidate to 1.7 g / cm3 in autograph measurement is x (kN / cm2), 5.0 ≤y ≤20.0 when, a particle size at which a cumulative volume from a small diameter side of a volume-based particle size distribution measured by a laser diffraction method reaches 50% is y, the above mentioned x and y satisfy the following Formula (1), and a degree of graphitization satisfies 90.0% or more: 11.3x−0.66y+1.4≥14.5

This invention relates to a plasma generator based on a dense microporous material catalysis, belonging to the field of low-temperature plasma technology. The plasma generator contains at least one discharge unit, which includes a first electrode, a microporous ceramic medium, and a second electrode. The first electrode is used to connect to a power source, and the second electrode is used for grounding. The microporous ceramic medium is used to adsorb gas molecules and active particles generated by the plasma discharge. This invention generates micro-discharge in a dense microporous medium, which has an extremely high specific surface area. When gas passes through, it is adsorbed onto the surface of the micropores in the medium. Similarly, active substances in the plasma are adsorbed onto the surface of the micropores in the medium. This improves the contact efficiency between short-lived, highly active particles and free radicals in the plasma and the reactants, promotes surface catalytic reactions, and improves the overall efficiency of the device.

The invention discloses a preparation method of a cathode wire for an electric dust remover, which comprises the following steps: phosphating the cathode wire to form a layer of phosphating film with a microporous structure on the surface of the cathode wire; coating the cathode wire with a nano ceramic coating, and enabling the nano ceramic coating to permeate into the microporous structure of the phosphating film in a wet film state; the nano ceramic coating comprises the following raw materials: nano particles and a solvent, and baking the cathode wire at 90-120 DEG C for 20-40 minutes, so that the coating on the surface of the cathode wire is cured to form a nano ceramic coating with the thickness of 10-50 microns, thereby obtaining the cathode wire for the electric dust remover. The cathode wire is subjected to phosphating treatment and paint coating, so that the cathode wire has excellent dust sticking prevention and easy cleaning performance, the adopted nano ceramic paint can well permeate into a microporous structure in a phosphating film under the capillary action in a wet film state, and the corrosion resistance of the coating can be further improved through the action of chemical bonds; and the binding force between the coating and the substrate is improved.

The invention provides a lithium manganese iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of lithium ion batteries. The lithium manganese iron phosphate positive electrode material is lithium manganese iron phosphate / lithium titanium phosphate / carbon, the chemical formula of the lithium manganese iron phosphate / lithium titanium phosphate / carbon is LiMnxFe1-xPO4 / LiTi2 (PO4-y) 3 / C, x is more than 0.5 and less than 1, y is more than 0 and less than 4, and the crystal structure of the lithium titanium phosphate is an NASCON structure and has the characteristic of oxygen deficiency. According to the present invention, with the lithium titanium phosphate coating, the particle growth of the lithium iron manganese phosphate can be effectively regulated so as to achieve the high compaction density, and the lithium titanium phosphate with the oxygen defect characteristic has the high ionic conductivity so as to effectively improve the gram volume and the rate capability of the lithium iron manganese phosphate positive electrode material; the oxygen-deficient lithium titanium phosphate composite lithium manganese iron phosphate material has the advantages of high compaction density and excellent gram volume and rate capability, and has important application value and popularization prospect.

The invention belongs to the technical field of batteries, and discloses a battery assembly method and a battery, and the method comprises the following steps: S1, installing a cover plate module on any side, provided with a tab, of a pole group; s2, coating the outer side of the pole group with an insulating film which is in hot melting with the first plastic part; s3, loading the pole group unit into the composite shell; s4, the cover plate module and the composite shell are welded; s5, welding the composite pole and the composite shell; and S6, realizing current conduction between the composite pole and the tab. By finally realizing current conduction between the composite pole and the tab, on one hand, the influence of other welding procedures on the connection quality of the tab on the side and the composite pole is avoided, and on the other hand, the tab on the side extends out of the composite shell, so that the occupied space is reduced, and the space utilization rate is increased; and the structural form of the composite shell and the single cover plate module is adopted, so that the welding workload of the tab on one side is reduced, the influence of high temperature on the microstructure of the tab on the side is reduced, the discharge performance is improved, and the cycle life is prolonged.

The present invention relates to the field of battery technology, and in particular to a molding process for a soft-pack battery cell and a battery, comprising the following steps: A. a first separator and a second separator form a separator belt, B. a heat conductor is fixed to the first separator and the second separator, C. a positive electrode sheet is fixed to the first separator, and a negative electrode sheet is fixed to the second separator, D. a battery cell winding body is formed, E. a pole ear is welded, and F. packaging. The soft-pack battery cell made by the molding process of the present invention is designed with multiple pole ears, which significantly reduces the internal resistance of the battery, improves the current distribution, reduces the resistance loss when the current passes through a single ear, and the current can be distributed more evenly, reducing the problems of local overheating and current concentration, thereby improving the power density and discharge capacity of the battery.