137results about How to "Avoid flatulence" patented technology

The invention relates to a method for solving flatulence of a lithium titanate cathode of a lithium battery by using double-boundary wrapping, and belongs to the technical field of energy materials. The method is characterized in that firstly, boundary stabilizing layer wrapping is carried out on a nitride of a lithium titanate cathode material, so as to establish an electrochemistry stable boundary between an electrode material and electrolyte, and subsequently hydrophobic surface layer wrapping is carried out by adopting a nitrogen-containing compound so as to establish a hydrophobic electrode boundary and prevent the crystal water in the electrode material from entering electrolyte; and at the same time the trace moisture of an electrolyte system is prevented from diffusing to the electrode boundary to cause catalysis reaction, and the electrolyte is prevented from decomposing to generate gas in the charging and discharging process, so that the problem that a lithium ion battery is swelled is solved, and the circulation service life of the battery is prolonged.

The invention discloses a safety type lithium battery, which comprises a battery core and a safety explosion-proof device, wherein the safety explosion-proof device is arranged at the reserved space at the bottom portion of the battery core of the lithium battery, and the reserved space is communicated to a region for accommodating the battery core. The invention further discloses a preparation method of the safety type lithium battery.

The invention provides a method for solving gas expansion failure of a lithium titanate battery. The method comprises a formation process and an aging process; the formation process comprises the following steps: firstly, charging for 2 to 20 hours in a constant-current mode by current of 0.01C to 0.1C, charging for 1 to 7 hours in a constant-current mode by current of 0.1C to 0.2C and charging for 0.5 to 1 hour in a constant-current mode by current of 0.2C to 0.5C; secondly, discharging for 3 hours in a constant-current mode by current of 0.5C to 1C, then charging for 3 hours and discharging for 3 hours in a constant-current and constant-voltage mode by current of 0.5C, and repeating the steps of charging for 3 hours and discharging for 3 hours in a constant-current and constant-voltage mode by current of 0.5Cfor 3 to 6 times; and finally, charging for 2 hours and discharging for 2 hours in a constant-current and constant-voltage mode by current of 1C, and repeating final two steps for 3 to 6 times. With such a design, batteries are prevented from expanding, the discharge power of the batteries is increased and a quick charge capacity and good service are realized. The production probability of defective products is low and the process cycle is short.

The invention discloses a formation method and a preparation method of a high-voltage lithium ion battery as well as a battery. The formation method comprises steps as follows: (1), the battery is charged at constant current of 0.015C-0.05 C at limit voltage of 0.15 V-0.5 V and put aside for 10min-3h; (2), the battery is charged at constant current I2 of 0.05C-0.15 C at the limit voltage of 0.1V-0.4V, then charged at the constant voltage higher than mean voltage by 0.1V-0.4V at the limit current of a product of I2 and 0.1 and put aside for 10min-3h; (3), the battery is discharged for 0.5h-3h at constant current of 0.05-0.2 C and put aside for 10min-3h; (4), the battery is charged at the constant current I5 of 0.2C-1 C at the limit current U3 (the highest charge cut-off voltage), charged at the constant voltage U3 at the limit current of a product of I5 and 0.1, put aside for 5min-3h, discharged at the constant current I5 at the limit voltage U4 (the lowest discharge cut-off voltage) and put aside for 20min-3 h. By means of the method, a battery material is completely activated, and the compact and stable SEI film is formed.

The invention discloses an electrolyte for a lithium-ion power battery, which comprises lithium salts, organic solvents and additives, wherein the lithium salts comprise at least one of LiODFB, LiPF6, LiClO4, LiBF4, LiAsF6, LiCF3SO3, LiN(SO2CF3)2 and LiBOB; the invention also discloses a preparation of the electrolyte, which comprises the following steps: mixing the organic solvents after impurities and water are removed; (2) adding the lithium salts in the mixed organic solvents, evenly stirring till the solution is clear and has no sediments, and allowing the solution to stand for at least half an hour to obtain mixed solution; (3) adding the additives into the mixed solution, evenly stirring, and then allowing the mixed solution to stand to obtain the required electrolyte. The invention improves the cycle performance of the battery at the high temperature, prevents gas explosion caused by electrolyte decomposition, can remarkably promote the long-life function of the volume conservation rate of the lithium-ion power battery at the high temperature, and has simple preparation method and easy industrialization production simultaneously.

The invention discloses a lithium-rich manganese material, a positive electrode material for a lithium-ion battery, a positive plate for the lithium-ion battery, the lithium-ion battery and a preparation method of the lithium-ion battery and relates to the technical field of lithium-ion batteries. The molecular formula of the lithium-rich manganese material is aLi2MnO3.(1-a)LiNi0.5Mn1.5O4.(1-a)LiNi0.5Mn0.5O2, wherein a is smaller than or equal to 0.3 and greater than or equal to 0.01. The positive electrode material comprises the lithium-rich manganese material; the positive plate is coated with the positive electrode material; an active material of the positive electrode material for the lithium-ion battery is the lithium-rich manganese material; and the active material of a negative electrode material is a SiO / C composite material. According to the lithium-rich manganese material, the defects that an existing positive electrode material is in low specific capacity and low in initialefficiency and an existing negative electrode material is low in coulombic efficiency and poor in cycle performance are relieved. Through the cooperation of the positive electrode material and the negative electrode material, the obtained lithium-ion battery has high specific energy and high security, and the energy density of the battery is greater than 320Wh / kg.

The invention provides a method of making fluorine-containing gel state electrolyte material and polymeric lithium ion cells by employing in-situ thermal cross bonding process, wherein fluorine-containing acrylic ester material is used as monomer, and double functional group acrylic acid ester containing polyethylene glycol or triple functional group acrylic acid ester containing polyethylene glycol are used as cross linking agent, the making process comprises injecting the miscible liquid comprising monomer, cross linking agent, thermal initiation agent and lithium ion electrolyte salt solution into the core of lithium ion cells, heating the cell to result in-situ thermal chemical cross-linking for the two acrylic esters, whereby the acrylic ester copolymer network bundles the solution in the electrolyte, forming the gel state electrolyte material with stabilized physical and chemical properties.

The invention discloses a lithium titanate battery and an electrolyte for the lithium titanate battery, and aims to provide the lithium titanate battery and the electrolyte for the lithium titanate battery which can prevent the swelling of a battery at a high temperature by inhibiting the aerogenesis of the lithium titanate battery. The lithium titanate battery comprises an anode material and the electrolyte; the anode material is lithium titanate; the electrolyte comprises a lithium salt, an organic solvent and additives; the additives comprise one or combinations of lithium bis(oxalate) borate (LiBOB), lithium difluoroborate (LiODFB) and 1,3-propane suhone (PS); and the using mass of the additives is equal to 1 to 5% of total mass of the lithium salt and the organic solvent. The lithium titanate battery can be widely applied to the field of lithium titanate batteries.

The invention provides a rechargeable zinc-manganese battery and a preparation method thereof. A positive electrode adopts a linear alpha-MnO2 material to replace a traditional amorphous manganese dioxide material, and the linear alpha-MnO2 material has a uniform structure. The large tunnels and vacancies in MnO2 increase the contact between the active material and the electrode, reduce the internal resistance of the battery, and improve the diffusivity of protons. The larger aspect ratio of MnO2 can make the preferred orientation degree of the material higher, thus improving the rate performance of the battery. Stable structure, not easy to collapse, the activity can be maintained at a high level, the decay rate is slow, more conducive to the battery cycle performance. In accordance withthat present invention, the preparation method of the alpha-MnO2 material is simple and feasible, the experimental reproducibility is good, the raw materials used are cheap and easy to obtain, the linear alpha-MnO2 material has a uniform structure, large aspect ratio, and stable structure, and is not easy to collapse and slow in attenuation rate.

The invention relates to a micro-ecological synbiotic feed addictive, comprising 10-60 weight parts of micro-ecological probiotics and 40-90 weight parts of oligosaccharide, wherein the viable count of lactic acid bacillus contained in each gram of the micro-ecological synbiotic feed addictive is 0.1-50 billion, the micro-ecological probiotics is a lactic acid bacillus preparation, and the oligosaccharide is one or more of fructo-oligo saccharide, xylo oligosaccharide, isomaltose oligosaccharide and soybean oligosaccharide. Separate application of the additive can raise animal culture production efficiency, reduce feeding cost, enhance the immunity and anti-stress capability of animals, and reduce incidence of diseases. Combined application of the additive and a Chinese herbal medicine additive has significant synergism.

The invention discloses a lithium titanate battery non-water electrolyte and a lithium titanate battery, and aims to provide the lithium titanate battery non-water electrolyte and the lithium titanate battery which can restrain the lithium titanate battery from generating gas to prevent the battery from gas expansion at a high temperature. The lithium titanate battery comprises a cathode material, an anode material and an electrolyte, wherein the anode material is lithium titanate; the electrolyte comprises lithium, an organic solvent and an additive; the additive is selected from at least one of difluoro bis(oxalato) lithium phosphate, tetra-fluoro (oxalato) lithium phosphate, tris-oxalate lithium phosphate, 1,8-naphthalene sulfonic acid lactone, and 1,3-propene sulfonic acid lactone; the use mass of the additive is equivalent to 1-5% of the total mass of the lithium and the organic solvent. The lithium titanate battery non-water electrolyte and the lithium titanate battery can be widely applied to the lithium titanate battery field.

The invention provides an electrolyte and a lithium ion battery, and belongs to the technical field of batteries. The electrolyte comprises an organic solvent and a lithium salt dissolved in the organic solvent, and also comprises an auxiliary agent. The auxiliary agent is selected from one or more of S elementary substance, B elementary substance, P elementary substance and a reducing compound capable of releasing specific negative ions in the electrolyte, and the specific negative ions are selected from one or more of S negative ions, B negative ions and P negative ions. The lithium ion battery comprises the electrolyte. The specific type of auxiliary agent can effectively reduce the potential when a lithium-containing compound is decomposed; and by adding the auxiliary agent into the electrolyte, the battery is ensured to have better cycling stability, and meanwhile, the applicability in a battery production process is good.

The invention discloses a lithium ion battery electrolyte solution including an electrolyte, a cyclic ethers solvent, a chain ethers solvent and an inorganic lithium salt additive. Compared with a traditional carbonic acid esters solvent, the cyclic ethers solvent and the chain ethers solvent in the electrolyte solution disclosed by the invention are less prone to chemical decomposition to generate gas molecules; at the same time, with additional use of the inorganic lithium salt additive, induced decomposition of a lithium titanate material on the electrolyte solution can be inhibited, and thus the high-rate charge / discharge cycling stability of a corresponding battery is greatly improved. Therefore, compared with the traditional lithium ion battery electrolyte solution, the lithium ion battery electrolyte solution disclosed by the invention is less prone to chemical decomposition to generate the gas molecules, so as to prevent the lithium titanate battery from generating flatulence.

The present invention relates to the technical field of battery materials, particularly to a titanium nitride coated lithium titanate material preparation method, which sequentially comprises: preparing a precursor solution, evaporating a solvent, sintering in an atmosphere containing oxygen, and sintering in an atmosphere containing reduction gas nitrogen. According to the present invention, the titanium nitride coated lithium titanate material prepared by using the preparation method has characteristics of high titanium nitride coating uniformity, good coating effect and good conductivity, and the conductivity problem of application of titanium nitride in electrode materials is solved; and titanium nitride is adopted to separate tetravalent titanium ions and an electrolyte, such that catalysis cracking of the electrolyte by the tetravalent titanium ions can be effectively prevented so as to prevent phenomenon of gas generation. In addition, the preparation process is simple and controllable, and process parameters of the lithium titanate material coated through titanium nitride can be controlled so as to control the coating degree of titanium nitride.

The invention relates to a stability reinforcing agent for the compounding of a polycarboxylate superplasticizer. The stability reinforcing agent comprises the following components in percentage by weight: 0-10% of strong alkali, 20-30% of alkaline buffering agent, 20-30% of alkaline preservative agent and the balance of water, wherein the sum of the contents of all the components is equal to 100%. The invention further relates to a preparation method of the stability reinforcing agent and application of the stability reinforcing agent. The stability reinforcing agent can remarkably prolong the quality guarantee period of a polycarboxylate superplasticizer product, has no side effects and can effectively prevent the occurrence of adverse reactions, such as flatulence, souring and the like; the stability of a coagulation retarding component, a thickening component and the like in the polycarboxylate superplasticizer product is improved, so that the phenomena of layering, precipitation, even performance deterioration, and the like can not occur; and the reinforcing performance and the like of polycarboxylate superplasticizer compounded products can be effectively improved, so that a polycarboxylate system can be alkaline for a long time and does not corrode iron and steel, and the storage is convenient and safe.

The invention relates to a Chinese herbal medicine micro-ecological synbiotic feed addictive, comprising a micro-ecological synbiotic feed addictive and a Chinese herbal medicine additive, wherein the micro-ecological synbiotic feed addictive comprises micro-ecological probiotics and oligosaccharide, the micro-ecological probiotics is a lactic acid bacillus preparation, and the oligosaccharide isone or more of fructo-oligo saccharide, xylo oligosaccharide, isomaltose oligosaccharide and soybean oligosaccharide, the weight of the micro-ecological synbiotic feed addictive accounts for 25-75 % of the total weight of the Chinese herbal medicine micro-ecological synbiotic feed addictive, and the Chinese herbal medicine additive comprises the following ingredients by weight parts: malt, green tangerine peel, dried orange peel, rhizoma atractylodis, medicated leaven, coke hawthorn, coke gardenia, Chinese medical stone, folium artemisiae argyi, eucommia, dichroae radix, and Hedyotis tenelliflora. Separate application of the additive can raise animal culture production efficiency, reduce feeding cost, enhance the immunity and anti-stress capability of animals, and reduce incidence of diseases. Combined application of the additive and the Chinese herbal medicine additive has significant synergism.

The invention discloses a tea packaging machine. The tea packaging machine comprises a worktable and a hopper with an adjustable discharge outlet, wherein the hopper is fixedly arranged on the worktable, a rotatable charging tray is arranged below the discharge outlet, a plurality of storage chambers are uniformly arranged on the same circumference of the bottom of the charging tray, a vertical levelling plate is arranged in the middle of the charging tray, a discharge passage is arranged below a baffle, and a packaging bag sealing device is arranged on one side of the discharge passage. The tea packaging machine disclosed by the invention has the advantages that the measurement of the quantity of tea packaged in each bag is realized through the storage chambers on the charging tray, the quantities of tea in bags can be kept uniform by fully filling the storage chambers and then leveling the upper end of the storage chambers by using the leveling plate, each storage chamber can be fully filled in the rotating process of the charging tray through the hopper with the adjustable discharge outlet, and the phenomena that the tea is not charged uniformly and the tea is stacked in the charging tray do not occur.

The invention provides an electrolyte system capable of preventing a spinel lithium titanate-based lithium ion secondary battery from being swollen. An additive is added in an organic electrolyte system, and a solid electrolyte membrane layer is formed on the surface of a Li4Ti5O12 electrode due to the reduction reaction of the additive in the battery cycle process to prevent a lithium titanate electrode from directly contacting with an organic electrolyte, and thus the battery is prevented from being swollen; the additive consists of an organic lithium borate salt and an organic matter containing an amide group or imide group, and the addition amount of the additive is 0.2-10wt% of the total weight of the electrolyte system. The organic lithium borate salt is used as a membrane-forming additive of the organic electrolyte, a stable SEI membrane layer is formed on the surface of the electrode due to the reduction reaction of the additive in the battery cycle process, and the organic matter containing the amide group or imide group can be reacted with trace water in the electrolyte, so that the dissociation of LiPF6 at high temperatures is inhibited, and thus the swelling phenomenon is prevented, and the cycle life of the battery is prolonged.

The invention discloses honey cream. A preparation method of the honey cream comprises the steps of firstly preparing a honey probiotic fermentation concentrated solution with proper sour and sweet taste and high probiotic content and high functional metabolite content by taking a part of honey and malt extracts, leek flowers and probiotic powder as raw materials through processes such as low temperature enzymolysis, high-voltage pulsed electric field sterilization, temperature shift fermentation, probiotic inoculation in different times, ultrafiltration concentration and the like, wherein honey is taken as a main raw material, the probiotic content of the honey probiotic fermentation concentrated solution can reach 8.12*10<12> to 9.58*10<12> CFU / mL, the probiotic properties are very high; then preparing the honey cream with high honey content, proper sour and sweet mouth feel, a remarkable health care effect and without crystallization after storage for a long period (36-48 months) by adopting the honey probiotic fermentation concentrated solution, the remaining honey and malt extracts, ginger extracts and functional auxiliary materials.

The invention discloses a lithium-dynamic battery capable of avoiding gas inflation, comprising an outer shell and at least two single battery cells, wherein the outer shell is provided with a hollow cavity, and the single battery cells are packaged in the hollow cavity of the outer shell and provided with micropores communicated with the inner parts of the single battery cells. In the invention, the single battery cells are provided with the micropores communicated with the inner parts of the single battery cells, the micropores can expel gas generated when the single battery cells are in gas inflation from the single battery cells, the gas inflation of the single battery cells is avoided, therefore the problem that the thickness of the battery is increased due to the gas inflation of the single battery cells is avoided, and the safety of the lithium-dynamic battery is improved.

The invention discloses feed capable of promoting digestion and absorption of chicks. The feed is characterized by being prepared from raw materials in parts by weight as follows: 130-150 parts of puffed corn meal, 50-70 parts of wheat bran, 20-30 parts of shrimp shells, 10-12 parts of celery leaves, 15-20 parts of distillers' grains, 6-8 parts of fish meal, 10-12 parts of bean curd residues, 7-11 parts of animal giblets, 25-30 parts of river snail meat, 12-15 parts of ground beetles, 7-9 parts of a Chinese cabbage, 4-6 parts of willow leaves, 4-8 parts of cortex phellodendri, 5-7 parts of common aucklandia root, 6-8 parts of hawthorn fruit, 3-5 parts of ligusticum wallichii, 7-9 parts of tangerine peel, 2-4 parts of monocalcium phosphate, 5-7 parts of stone powder and 6-8 parts of nutrient additives. The feed for the chicks adopts corn and bran as the main raw materials and adopts the shrimp shells and the distillers' grains as the auxiliary materials, so that the prepared feed has rich and comprehensive nutrition; by means of the added traditional Chinese medicine components, the gastrointestinal digestion function of the chicks can be promoted, monocalcium phosphate and the stone powder can prevent diarrhea and flatulence and promote eating of the chicks simultaneously, and accordingly, the chicken quality is higher; garlic powder and onions can further improve the disease-resistant and antibacterial ability of the chicks, and the incidence rate of other diseases is reduced.

The invention discloses application of lycium barbarum polysaccharide in preparing a feed additive for reducing a ruminant rumen gas production rate. The fact that the lycium barbarum polysaccharide can be applied in preparing the feed additive for reducing the ruminant rumen gas production rate is discovered for the first time; 0.1 to 0.5 percent of lycium barbarum polysaccharide is added in a feed for ruminants, so that the output of greenhouse gases such as methane and carbon dioxide in rumens can be remarkably reduced, and the rumens are prevented from producing flatus; meanwhile, the degradation rates of dried matters and crude protein in the feed for the ruminants can be also improved, and the utilization rate of the feed is effectively improved.

The invention relates to the field of batteries, in particular to a lithium battery anode preparing method and a lithium battery prepared by an anode prepared by the method, and aims to provide a method for preparing a high-strength lithium battery anode. According to the technical scheme, the lithium battery anode preparing method comprises the following steps of: (1) uniformly mixing anode active substances such as graphite, conductive carbon black, nano carbon fibers, adhesive butadiene styrene rubber and a water-based adhesive, wherein the graphite is prepared by mixing spheroid-like graphite with the granularity of 18.0 to 22.0 mu m and graphite with the specific surface area of less than or equal to 20.0m<2> / g; (2) preparing a pasty adhesive, and uniformly coating the adhesive on two sides of a copper foil; and (3) performing vacuum drying, rolling, cutting, and thus obtaining an anode plate. The invention has the advantages that: the anode active substances cannot fall, the electrical conductivity is improved, and the internal resistance of the battery is reduced; therefore, the surface of a current collector is prevented from being subjected to a reduction reaction, and air bulking is avoided.

The invention discloses a probiotic honey composition. The probiotic honey composition is prepared with honey as a main raw material and through a step of employing a part of the honey, a malt extract, leek flowers, and a probiotic powder as raw materials, and performing low-temperature enzymolysis, high-voltage pulse electric field sterilization, temperature-varying fermentation, probiotic inoculation in batches, ultra-filtration and concentration to the raw materials to prepare a honey probiotic fermentation concentrate liquid which has a moderate sour-and-sweet taste and is high in contents of probiotics and functional metabolites thereof, wherein the fermentation concentrate liquid can reach 8.12*10<12> - 9.58*10<12> CFU / ml in probiotic content and has very excellent probiotic property, and finally the fermentation concentrate liquid is mixed with the rest of the honey, the malt extract, raw ginger extract and a functional auxiliary to prepare the probiotic honey composition which is high in honey content, has a moderated sour-and-sweet taste, is free of crystallization even being stored for a long time (36-48 months), and has significant health caring effects.

The invention discloses a method for preparing an organic water-soluble fertilizer. The method comprises the following steps: chemically activating organic materials; regulating a pH value of the organic material liquid by using a KOH solution for later use; dissolving microelements into water at the temperature of 60-100 DEG C under the pressure of 0-2 KPa; adding the microelement solutions into the organic material liquid at the temperature of 60-80 DEG C; dissolving macroelements into the water at the temperature of 60-80 DEG C; adding the macroelements into the organic material liquid at the temperature of 40-60 DEG C; adding water to reach the formula proportion; uniformly stirring. The organic water-soluble fertilizer produced by using the method is high in mobility and stability, and the problems of separation by crystallization and gaseousness of products are solved.

The invention discloses a honey product and a preparation method thereof. Honey is taken as a major raw material. The method comprises the following steps: firstly, by taking extracts of a part of the honey and malt, leek flower and probiotics powder as raw materials, preparing a honey probiotics fermentation concentrated solution which is proper in acidity and sweetness and has high probiotics content and functional metabolite content through the processes of low-temperature enzymolysis, high-pressure pulse electric field sterilization, temperature shift fermentation, graded probiotics inoculation, ultrafiltration concentration and the like, wherein the probiotics content can be up to 8.12*10<12> to 9.58*10<12> CFU / ml, and the probiotic property is very high; preparing the honey product which is high in honey content, is proper in acidity and sweetness, is not crystalized during long-term preservation (36-48 months) and has a remarkable health-care effect by using the honey probiotics fermentation concentrated solution, the remaining extracts of the honey and the malt, a ginger extract and functional auxiliary materials.

The invention discloses a high-power lithium ion battery electrolyte. A technical scheme provided by the invention has the following main points: the high-power lithium ion battery electrolyte comprises an electrolyte salt, a non-aqueous organic solvent and an additive; the electrolyte salt is selected from the group consisting of lithium hexafluorophosphate with lithium bis(oxalate)borate, lithium difluoroborate and a mixture thereof; the non-aqueous organic solvent is a mixture of ethylene carbonate, dimethyl carbonate and propylene carbonate; and the additive is a mixture of perfluorinated glycol sulfite derivative, ethylene carbonate and cyclic carboxylic ester-butyrolactone. The high-power lithium ion battery electrolyte can well support a high-power power battery for charging and discharging with large current; the lithium ion battery prepared by using the electrolyte has excellent rate capability and cycle performance, and can effectively prevent inflation of a battery using a ternary high nickel material.

The invention provides a nano-modified lithium ion battery membrane, a manufacturing method thereof and a product containing the same. The manufacturing method comprises: preparing an organic sodium salt inclusion compound of a cyclodextrin molecular tube; and immersing a membrane which needs modification in an alkali solution of an organic sodium salt inclusion compound of the cyclodextrin molecular tube. The invention also provides a nano-modified lithium ion battery membrane obtained by the manufacturing method and a product containing the same. The membrane has high electrolyte wetting property and strong adhesion, and can neutralize unbonded hydrofluoric acid in the electrolyte, has high cycle performance, high capacity and can improve battery safety.

The invention relates to the field of packaging of a lithium battery soft package, and in particular to a top and side packaging integrated machine and packaging method for the lithium battery soft package. The packaging integrated machine comprises a machine table and a packaging device, wherein the packaging device comprises a lifting mechanism disposed on the machine table, an upper sealing knife which is disposed on the lifting mechanism and lifted with the lifting mechanism, and a lower sealing knife which is disposed on the lifting mechanism and corresponds to the upper sealing knife; the upper sealing knife and the lower sealing knife are in a right-angled plate-like structure; the packaging device further comprises a telescopic mechanism and an extrusion mechanism; the telescopicmechanism is closely disposed at an inner right angle of the upper sealing knife; the extrusion mechanism is disposed on the lifting mechanism through the telescopic mechanism; the lifting mechanism drives the telescopic mechanism and the extrusion mechanism to perform displacement; and the telescopic mechanism drives the extrusion mechanism to perform displacement. Compared with the prior art, the upper sealing knife and the lower sealing knife are in the right-angled plate-like structure, the top and side edge-sealing can be completed by only needing heat sealing at a time; the secondary extrusion is performed by disposing the extrusion mechanism; the bad condition such as expansion of the lithium battery soft package can be avoided and the qualified rate of the product is improved.