34results about How to "Improve long-cycle performance" patented technology

The invention provides a B / N co-doped high-graphitization-degree artificial graphite negative electrode material and a preparation method thereof, and the preparation method of the artificial graphite negative electrode material comprises the following steps: crushing raw material coke to obtain primary particles, and then mixing, granulating and shaping to obtain secondary particles; fully mixing the obtained secondary particles with an organic nitrogen source, and then pre-carbonizing to obtain a nitrogen-doped precursor; and fully mixing the obtained nitrogen-doped precursor with an organic boron source, and then carrying out secondary carbonization, shaping and graphitization to obtain the B / N co-doped high-graphitization-degree artificial graphite negative electrode material. The artificial graphite negative electrode material disclosed by the invention has high energy density and high rate performance, and meanwhile, the first efficiency can also be improved.

The invention provides an asphalt solid-phase composition for coating, a modified asphalt coated natural graphite negative electrode material, preparation of the modified asphalt coated natural graphite negative electrode material and a lithium ion battery, and the asphalt solid-phase composition for coating is used for forming an amorphous carbon coating layer coated on the surface of natural graphite and comprises coated asphalt and a modification additive, the mass ratio of the natural graphite to the coated asphalt to the modification additive is 1000: (45-80): (3-12); the modification additive comprises a saturated long-chain component, a low-molecular wax component and a component containing a modification group in a mass ratio of (2-10): (0.5-5): (0.5-7). By adding the modification additive, the softening point and viscosity of the asphalt are reduced, the wetting contact property of the asphalt to graphite is improved, the density and uniformity of a coating layer are improved, and the electrochemical performance of the natural graphite negative electrode material is further improved. The negative electrode material provided by the invention has higher first-cycle coulombic efficiency, better cycle performance, lower impedance and lower specific surface area under the condition of low asphalt addition amount.

The invention relates to the technical field of batteries, in particular to a battery cell and a battery comprising the same. The battery cell comprises a positive plate, a diaphragm and a negative plate, the diaphragm is located between the positive plate and the negative plate and comprises a base material and gluing layers, the gluing layers are located on the two sides of the base material or located on the side, close to the positive plate, of the base material, the battery cell comprises a straight area and a bent area, and the diaphragm comprises a first area and a second area corresponding to the straight area. The second area is an area where the diaphragm is overlapped with the projection of the positive plate, the first area is an area where the diaphragm is not overlapped with the projection of the positive plate, the thickness of the gluing layer in the first area is H1, the thickness of the gluing layer in the second area is H2, and the battery cell meets the following relational expression: 1 < H1 / H2 < = 10. The battery disclosed by the invention is high in cycling stability and good in high and low temperature performance.

The invention relates to the technical field of batteries, in particular to a diaphragm for a battery, a preparation method of the diaphragm and an aqueous sodium-ion battery. The battery diaphragm comprises a diaphragm substrate and a coating arranged on the diaphragm substrate, wherein the coating comprises carbon-coated sodium ferrocyanide, a conductive agent and a binder. The preparation method of the battery diaphragm comprises the following steps: mixing the carbon-coated sodium ferrocyanide, the conductive agent, the binder and the solvent to prepare slurry, coating the slurry on the diaphragm substrate, and drying to obtain the battery diaphragm. The high-performance battery diaphragm is obtained by arranging the modified coating containing the carbon-coated sodium ferrocyanide, the conductive agent and the binder on the conventional diaphragm substrate, and the diaphragm can improve the long cycle stability, the capacity, the coulombic efficiency and the energy density of the battery when being used for the water-based sodium ion battery.

The invention relates to a preparation method of a high-conductivity lithium composite aqueous binder for a high-voltage positive electrode material, which comprises the following steps: adding carrageenan into deionized water, uniformly mixing, adding sodium carboxymethyl cellulose, and stirring and mixing at room temperature for 24 hours to prepare a carrageenan-sodium carboxymethyl cellulose solution; and adding a pyrrole monomer into the carrageenan-sodium carboxymethyl cellulose solution, stirring and mixing for 5 minutes at room temperature, adding an initiator, stirring overnight at room temperature, and polymerizing to obtain the high-conductivity lithium-conductivity composite aqueous composite binder. According to the binder prepared by the invention, the conductivity and lithium conduction performance of the binder are bidirectionally improved, multi-electron transfer of an active material is excited, and the lithium ion transport stability is improved, so that the first-circle coulombic efficiency and long cycle performance of an electrode are improved.

The utility model relates to a long-circulation sodium ion battery diaphragm, which belongs to the field of sodium ion batteries and comprises a diaphragm body, the diaphragm body comprises a diaphragm base layer and a functional layer which are mutually laminated, the functional layer is a non-woven fabric layer, and the thickness of the non-woven fabric functional layer is 2.5-3 times of that of the diaphragm base layer. According to the utility model, the diaphragm base layer adopts a conventional sodium-ion battery diaphragm, the thickness of the diaphragm base layer is about 16 microns, and the purpose of reducing the vacuum baking time of a sodium-ion battery cell using the diaphragm body disclosed by the utility model is achieved by adding the functional layer on the surface of the diaphragm base layer. Besides, the non-woven fabric layer is additionally arranged on the surface of the diaphragm base layer, so that the diaphragm body between the positive plate and the negative plate can accommodate more electrolyte, and the sodium ion battery using the diaphragm body disclosed by the utility model has the characteristic of long circulation.

The invention belongs to the technical field of materials, and relates to a preparation method of a fluorinion-induced manganese oxide composite material and application of the fluorinion-induced manganese oxide composite material as a positive electrode material in an aqueous magnesium ion capacitor. The preparation method comprises the following steps: firstly, preparing a MnO2 precursor from a positive electrode through a hydrothermal method, and annealing to obtain a pure-phase MnO2 nanoflower structure; the preparation method comprises the following steps: preparing MnO2 nanoflowers, adding the prepared MnO2 nanoflowers into polyethylene glycol, adding manganese chloride, potassium fluoride and polyvinylpyrrolidone, carrying out ultrasonic dispersion for 30 minutes, continuously stirring for 1 hour, and transferring the obtained mixed solution into a Teflon reaction kettle for hydrothermal reaction to obtain the MnO2 / Mn2O3 / KMnF3 composite material. The composite material is used as a positive electrode and activated carbon is used as a negative electrode to assemble a water-based magnesium ion capacitor device, and the water-based magnesium ion capacitor device can reach relatively high specific capacitance after an electrochemical test. According to the invention, a hydrothermal method is adopted for synthesis, the process is simple, the material cost is low, and the material is non-toxic and harmless, so that the capacitor has high practical application value and is expected to become a novel green energy storage device.

The utility model relates to the technical field of batteries, in particular to a diaphragm, a battery and electric equipment, the diaphragm comprises a diaphragm body and a lug boss, the lug boss is connected with the diaphragm body, and the lug boss is used for being matched with a pole piece. According to the diaphragm, the battery and the electric equipment disclosed by the utility model, the convex part is arranged on the diaphragm body, so that the diaphragm body with the convex part can be matched with the pole piece comprising the etched concave part in a concave-convex manner; the long circulation capability of the battery is effectively improved, the service life of the battery is prolonged, the safety performance of the battery is improved, the capacity retention rate of the battery is improved, and the production and preparation efficiency is improved.

The invention provides a lithium ion battery which comprises a negative electrode and an electrolyte, the negative electrode comprises a negative electrode active material, and the negative electrode active material comprises a silicon-carbon negative electrode material; the sphericity of the silicon-carbon negative electrode material is X1, and 0.5 < = X1 < = 1; the electrolyte comprises an additive, the mass content ratio of difluoroethylene carbonate to fluoroethylene carbonate in the additive is X2, and X2 is larger than or equal to 0.1 and smaller than or equal to 1. Wherein 0.5 < = X1 / X2 < = 5. The battery disclosed by the invention can maintain high electrochemical performance and has better compatibility with a silicon-carbon negative electrode, so that the safety and the reliability of the lithium ion battery with the silicon negative electrode are remarkably improved, and the rate capability and the cycle performance of the lithium ion battery are improved.

The invention discloses a silicon-oxygen-carbon-based negative electrode material and a preparation method thereof, and belongs to the technical field of lithium battery negative electrode materials, and the preparation method comprises the following steps: (1) mixing alcohol, water and acid to prepare an acid solution with the pH value of 2-4, adding organosiloxane into the acid solution, and stirring in a water bath to obtain a siloxane hydrolysate; (2) adding a pyrene compound into the siloxane hydrolysate, and carrying out ultrasonic treatment; (3) adding alkali, stirring in a water bath at 20-50 DEG C for 1-3 hours, and then freeze-drying to obtain a precursor of SiOC; and (4) placing the precursor in an atmosphere furnace, sintering in an argon atmosphere, and naturally cooling to obtain the modified negative electrode material SiOC. The amorphous carbon content of the prepared SiOC is increased, on one hand, the electronic conductivity of the SiOC can be improved, and on the other hand, volume expansion in the charging and discharging process can be relieved.

This invention discloses a flame-retardant interface-stabilized electrolyte for high-voltage layered oxide sodium-ion batteries and its preparation method. The electrolyte comprises a composite sodium salt and a mixed organic solvent. The composite sodium salt includes sodium difluorosulfonylimide, sodium oxalate borate, and / or sodium difluorooxalate borate. The mixed organic solvent includes a phosphate ester flame-retardant solvent, a sulfone solvent, a hydrofluoroether diluent, and a small amount of electron-deficient nitrogen-containing aromatic nitrile interface-regulating molecules. This electrolyte does not rely on conventional additives such as ethylene carbonate and fluoroethylene carbonate. Through the flame-retardant framework solvent, anion-dominated film formation, and the regulating effect of electron-deficient aromatic nitrile on the residual alkali of layered oxides and the surface of high-valence transition metals, a stable and oxidation-resistant protective interface is formed on the positive electrode surface, while simultaneously ensuring low-resistance film formation on the hard carbon negative electrode side. This invention is applicable to high-voltage layered oxide sodium-ion batteries with cutoff voltages from 4.15 V to 4.50 V, and can simultaneously improve safety, long-cycle stability, and high-temperature storage performance.

A preparation method of an A-site doped Prussian blue sodium ion battery positive electrode material belongs to the field of new energy batteries, and the specific scheme comprises the following steps: step 1, adding Prussian blue prepared by a traditional process into an A'solution, stirring for 5-20 hours, and filtering to obtain a Prussian blue solution A '; wherein the A'solution comprises one or a combination of more of alkaline earth metal ions, transition metal ions and main group metal ions; and 2, after stirring is finished, centrifuging, collecting Prussian blue, washing and carrying out vacuum drying to obtain the A-site doped Prussian blue sodium ion battery positive electrode material. The invention relates to a method for partially replacing A-site ions with metal ions A'through cation exchange in a liquid phase environment to achieve an A-site doping effect. In the charging and discharging process, the metal ion A'is not separated and can be used as a support column in a Prussian blue lattice channel, so that the structure collapse in the Na < + > deintercalation process is prevented, and the long cycle performance of the sodium ion battery is improved.

The invention belongs to the field of batteries, and particularly discloses a graphite negative electrode material and a preparation method and application thereof, and the specific surface area of the graphite negative electrode material under the unit of m < 2 > / g is marked as B; the volume median particle diameter of the graphite negative electrode material under the unit of [mu] m is marked as Dv50; when a half battery assembled by a negative electrode containing the graphite negative electrode material and a lithium sheet counter electrode is subjected to lithium intercalation at 2C multiplying power, the battery residual capacity SOC is recorded as S when a dQ / dV curve value is lower than-40mA / V for the first time, and the graphite negative electrode material meets the condition that B * Dv50 * S is more than or equal to 8 and less than or equal to 24. The lithium ion battery prepared from the graphite negative electrode material disclosed by the invention has high rate and long cycle performance, the polarization degree in the high rate lithium intercalation process is low, the lithium precipitation reaction stage is later, and the fast charging performance is excellent.

The present invention relates to the field of battery technology, and specifically to a diaphragm and a battery including the diaphragm. The diaphragm includes a substrate and a ceramic layer located on one or both sides of the substrate, the ceramic layer includes inorganic particles and a first polymer, the ceramic layer is a porous structure, and the porous structure includes pores with a diameter of ≥0.5μm. Within a range of 100μm×100μm arbitrarily selected on the surface of the ceramic layer, the number of pores with a diameter of ≥0.5μm is 10-800 and the number of the first polymer is 10-500; the diaphragm satisfies the following relationship: 1<D1 / D2<20, wherein D1 is the average diameter of pores with a diameter of ≥0.5μm in the ceramic layer, in μm; D2 is the average particle size of the inorganic particles, in μm. The battery including the diaphragm of the present invention can have both high long cycle performance and fast charging performance without affecting self-discharge and safety performance.

The invention relates to an electrolyte, an electrochemical device and electronic equipment. The electrolyte comprises an electrolyte additive, the electrolyte additive comprises a halogenated quinoline compound, the electrolyte additive and the positive pole piece meet the following relation: 0.03 < = Ya / (L * M * N) < = 2.8, the mass percent of the electrolyte additive in the electrolyte is Ya%, the total number of the positive active material layers is L, and the sum of the mass percent of the electrolyte additive in the positive active material layers is 100%. The mass of the positive electrode active material layer in unit area on the positive electrode plate is M g / cm < 2 >, and the compaction density of the positive electrode active material layer is N g / cm < 3 >. According to the scheme provided by the invention, the halogenated quinoline compound can be used as the electrolyte additive, and the relationship between the electrolyte additive and the positive electrode active material layer is regulated and controlled, so that the electrolyte can form a stable protective film on the positive electrode and the negative electrode, and the normal-temperature and high-temperature performance of the battery is improved on the premise of ensuring the energy density of the battery.

The invention discloses a preparation method of a positive electrode for a solid-state battery, and belongs to the technical field of lithium ion batteries. Comprising the following raw materials in parts by weight: 80-100 parts of a positive electrode material, 6-12 parts of a binder and 10-20 parts of a conductive agent. According to the prepared positive electrode, the positive electrode material is a lithium-rich manganese-based ternary positive electrode material and is large in capacity and low in cost, and the positive electrode material is treated by phosphate, so that the electrochemical performance and the cycling stability of the positive electrode are improved; wherein the conductive agent is a binary composite conductive agent of carbon nanotubes and carbon black and can significantly enhance the cycling stability and electrical performance of the electrode, and moreover, through modification of the carbon nanotubes, compared with common carbon nanotubes, the carbon nanotubes have more defect types and active sites, few impurities are generated, and the performance of the electrode is improved. And the long cycle performance and the rate capability of the electrode can be further enhanced. In conclusion, the prepared positive electrode has important application value in the technical field of lithium ion batteries.

The application discloses a sodium ion battery positive electrode material and a preparation method thereof. By adding cheap, non-toxic, environment-friendly and easily-degradable water-soluble cellulose as an additive, the growth of a specific crystal direction can be inhibited. The hydrophilic group of the water-soluble cellulose can change the coordination environment of metal ions and reduce the entry of water molecules into the crystal lattice. In addition, by introducing the water-soluble cellulose, high-concentration reactant feeding can be realized, which is beneficial to reducing the consumption of industrial water. Meanwhile, compared with other existing additives, the water-soluble cellulose is environment-friendly, easily-degradable, low in production and separation cost, and free of toxic by-product generation. The prepared open three-face cubic Fe-based Prussian blue analogue material is good in dispersity, high in purity and uniform in morphology, and as a sodium ion battery positive electrode material, has a reversible capacity of 155.40 mAhg ‑1 at 0.1C (1C=170 mAhg ‑1 ) and a first discharge coulombic efficiency of 97.83%.

The invention relates to the technical field of aqueous zinc-iodine battery positive electrode materials, and discloses a preparation method and application of an I2 / ATP composite material, and the preparation method comprises the following steps: (1) carrying out acid pickling stirring, freeze drying and uniform grinding on purified attapulgite to obtain acidified attapulgite; (2) carrying out heat treatment on the acidified attapulgite at 300-500 DEG C for 2-4 hours to obtain heat-treated attapulgite; and (3) uniformly grinding the heat-treated attapulgite and I2, adding a certain amount of deionized water, heating at 110-140 DEG C for 14-24 hours, cooling, centrifuging and drying to obtain the I2 / ATP composite material. The composite material prepared by the invention is applied to a positive electrode of an aqueous zinc-iodine battery, so that the battery has the advantages of high specific capacity, slow specific capacity attenuation, good battery stability and the like.

The invention provides a multi-stimuli-responsive bionic nano preparation which comprises an inner core and a shell, the inner core is a drug-loaded gold nano cage, drugs can be chemotherapeutic drugs, traditional Chinese medicine active ingredients and the like, the surface of the gold nano cage is connected with beta-cyclodextrin (beta-CD) through glutathione-sensitive gold-sulfur bonds (Au-S) to block the drugs, and the drug-loaded gold nano cage can be used as a chemotherapeutic drug or a traditional Chinese medicine active ingredient. Imine (Ada-PCA) formed by amantadine and protocatechuic aldehyde is inlaid on the surfaces of the nano-particles through host-guest interaction between cyclodextrin and adamantane, and a shell is a hybrid membrane bionic thermosensitive liposome. The invention also provides a preparation method. The nano preparation has multiple stimulation response performance such as temperature, low pH value, glutathione reducing environment and the like; in tumor tissues, near-infrared light excites the gold nanocage to generate heat, so that the bionic thermosensitive liposome is decomposed, pH sensitive bonds on the surface of an inner core are broken in an acid environment, meanwhile, high-concentration glutathione in cells promotes the blocking agent to fall off, accurate release of the medicine in tumor cells is achieved, the treatment effect of the medicine is improved, and toxic and side effects are reduced.

The invention relates to a high-nickel ternary positive electrode material, a preparation method of the high-nickel ternary positive electrode material, a positive plate and a battery. The high-nickel ternary positive electrode material comprises secondary particles formed by aggregating primary particles, the high-nickel ternary positive electrode material satisfies the following conditions: in the primary particles of the secondary particles, the ratio A [101] / A [104] of the total surface area A [101] of the [101] crystal face to the total surface area A [104] of the [104] crystal face satisfies 0.05 < = A [101] / A [104] < = 0.3; the concentration of the cobalt element in the secondary particle is in gradient distribution which is sequentially decreased from the surface to the center, and the cobalt element concentration C [surface] in the surface area of the secondary particle and the cobalt element concentration C [core] in the core area of the secondary particle meet the condition that (C [surface]-C [core]) / C [core] is larger than or equal to 0.05 and smaller than or equal to 0.2. According to the scheme provided by the invention, the low-temperature discharge capacity, the high-temperature storage stability and the long cycle life of the ternary material can be synergistically improved.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a water-based composite binder for a silicon-carbon negative electrode of a lithium ion battery, a preparation method of the water-based composite binder and a battery containing the water-based composite binder. The water-based composite binder comprises the following three components: a first component which is a compound containing guanidine bonds and salts thereof; the second component is a chain derivative of glutamic acid; and the third component is a derivative of polystyrene. The composite binder suitable for the lithium ion battery silicon-carbon negative electrode is obtained, and the cycling stability and the rate capability can be improved. A chain derivative containing guanidine bonds and a chain derivative of glutamic acid are associated through hydrogen bonds to construct a polar functional group for inducing a solid and non-negative electrode solid electrolyte interface and a soft chain for buffering volume expansion. Meanwhile, the hard-chain polystyrene derivative containing the benzene ring provides a strong bonding effect for the composite binder. And the soft chain and the hard chain act simultaneously to wrap the silicon-carbon negative electrode, so that the volume expansion is greatly buffered. The water-based composite binder is simple and convenient to prepare, the raw materials are economical, and the water-based composite binder is green and environment-friendly by taking deionized water as a solvent. The aqueous composite binder can effectively improve the processability and the electrochemical performance of the silicon-carbon negative electrode of the lithium ion battery, and has a good commercial application prospect.

The application relates to a negative electrode sheet, a battery and an electric device. The negative electrode sheet comprises a negative electrode current collector layer and a negative electrode material layer which are arranged in a stack, the negative electrode material layer comprises a carbon-based negative electrode material, a negative electrode binder and a first additive, the negative electrode binder comprises lithium polyacrylate, and the structural formula of the first additive is

This disclosure provides a lithium-ion battery and its preparation method. Specifically, the positive electrode film layer includes a positive electrode active material, a solid electrolyte, a conductive agent, and a binder; the average fiber orientation angle of the positive electrode film layer is 40°~50°. The solid electrolyte layer includes a solid electrolyte and a binder; the average fiber orientation angle of the solid electrolyte layer is 40°~50°. By using a positive electrode film layer or a solid electrolyte layer with an average fiber orientation angle of 40°~50°, the electrochemical interface stability is improved, thereby enhancing the long-cycle performance and rate performance of the lithium-ion battery.

The invention belongs to the technical field of electrolytes, and particularly discloses an electrolyte for rapidly charging a lithium metal battery, 3-butadiene sulfone and LiNO3 additives are introduced into a carbonic ester electrolyte, 3-butadiene sulfone can promote dissolution of LiNO3 in the commercial carbonic ester electrolyte, so that the lithium metal battery can be rapidly charged, and the lithium metal battery can be rapidly charged. According to the method, LiNO3 and 3-butadiene sulfone are subjected to reductive decomposition to generate inorganic nitride, sulfide and oxide, so that an SEI film with high ionic conductivity and high mechanical strength is constructed on the surface of lithium metal, the uniformity of lithium deposition is improved, and the cycle life of a lithium metal battery under the working condition of fast charging is prolonged.

Embodiments of the present invention provide a cathode material, a preparation method thereof, a secondary battery, and an electrical device. Among them, the cathode material provided by the embodiments of the present invention includes a core and a coating layer provided on the surface of the core. The core includes a ternary cathode active material, and the coating layer includes aLi 3 PO 4 ·bB 2 O 3 ·cLiF, where a + b + c = 1, and 0 < a, b, c < 1. By using Li 3 PO 4 , B 2 O 3 and LiF to perform adaptive coating on the ternary cathode active material as the coating layer, not only can a fast ion conductor migration channel be formed on the surface of the ternary cathode active material, thereby improving the discharge capacity, cycle stability and rate performance of the material; it can also supplement the consumption of lithium ions, passivate the SEI film, and isolate the direct contact between the cathode material and the electrolyte, thereby reducing the occurrence of side reactions and improving the long cycle performance of the material. Therefore, the cathode material provided by the embodiments of the present invention solves the problem that the structural stability of the cathode material of the existing ternary lithium ion battery is poor, resulting in a short cycle life of the battery.

This invention discloses an oil-based binder, anode slurry, a composite silicon anode, and an all-solid-state battery, belonging to the technical field of all-solid-state battery energy storage materials. The oil-based binder comprises component A and component B; component A is a copolymer composed of acrylate, long-chain ether oxygen bonds, and epoxy active groups, while component B is a styrene-ethylene-butene-styrene block copolymer. This binder is prepared through free radical polymerization and physical blending, is soluble in weakly polar solvents, and is suitable for composite silicon anode systems based on sulfide solid electrolytes. The binder provided by this invention possesses excellent ion conduction ability, mechanical properties, and interfacial adhesion, effectively buffering the volume expansion of the silicon anode, maintaining electrode structural stability and interfacial ion transport, thereby significantly improving the rate performance and long-cycle stability of the all-solid-state battery.

The invention belongs to the technical field of batteries, and provides an electrolyte additive, an electrolyte and a battery. The electrolyte additive comprises a first additive and a second additive, wherein the first additive comprises fluorine-containing straight-chain lithium carboxylate; the second additive comprises at least one of vinylene carbonate, fluoroethylene carbonate and vinylethylene carbonate; and the third additive comprises an ester additive. The electrolyte additive provided by the invention is beneficial to reducing the impedance of the lithium ion battery, improving the long cycle performance of the battery and improving the high-temperature performance of the battery.

The embodiment of the invention provides a composite current collector, a preparation method thereof and an all-solid-state battery. The composite current collector comprises a polymer conductive layer comprising a first surface and a second surface which are oppositely arranged; a first metal layer and a first conductive ion electronic layer are sequentially arranged on the first surface in the direction away from the polymer conductive layer; a second metal layer and a second conductive ion electronic layer are sequentially arranged on the second surface along the direction far away from the polymer conductive layer; the polymer conductive layer comprises a first polymer and a first conductive agent; the first ion-conducting electronic layer and the second ion-conducting electronic layer both comprise a solid electrolyte, a second polymer and a second conductive agent. According to the composite current collector, the polymer conductive layer, the first metal layer, the second metal layer, the first conductive ion electronic layer and the second conductive ion electronic layer are arranged, so that the finally obtained composite current collector shows excellent performance in the aspects of thermal stability, safety, electron and ion transmission efficiency and corrosion resistance.

The invention relates to the technical field of secondary batteries, and provides a phenol organic matter additive electrolyte for an aqueous zinc-manganese battery, which is convenient to produce, suitable in price and non-toxic, and the electrolyte is composed of a mixed aqueous solution of manganese acetate, zinc acetate, potassium chloride and a phenol organic matter, wherein the phenol organic matter additive serves as a redox medium to participate in the electrochemical reaction process of the positive electrode, dissolution of manganese dioxide in the discharging process is promoted, high positive electrode reaction reversibility is achieved, and the long cycle performance of the water-based zinc-manganese battery is improved; the invention also provides a soft package battery device structure design based on a manganese dioxide dissolution and deposition mechanism, and the energy storage application process of the aqueous zinc-manganese battery based on the manganese dioxide dissolution and deposition mechanism is promoted.

This invention belongs to the field of lithium-ion battery technology, and relates to a polysiloxane alkyl polymer electrolyte membrane, its preparation method, and a polymer solid-state lithium-ion battery. The electrolyte membrane uses a porous support material as a three-dimensional porous framework, with the polymer electrolyte filling the pores of the porous support material and coating its surface. The polymer electrolyte comprises a siloxane alkyl polymer and a conductive lithium salt, using 1,1,3,3-tetramethoxy-1,3-divinyldisiloxane as the polymer monomer. The battery constructed from this electrolyte membrane exhibits an ionic conductivity higher than 6*10⁻⁶ at room temperature. ‑4 S cm ‑1 The electrochemical stability window exceeds 4.5V.