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59results about How to "Help infiltration" patented technology

Lithium ion battery negative electrode material and preparation method

The invention discloses a lithium ion battery negative electrode material and a preparation method. The preparation method comprises the steps of putting willow catkins into acetone and performing ultrasonic treatment; then putting into deionized water to be stirred intensively and washed; next, performing drying in a vacuum condition; putting the pre-processed willow catkins into a tubular furnace to be subjected to heat treatment to obtain willow catkins-derived hollow carbon micro tubes; enabling the willow catkins-derived hollow carbon micro tubes to be dispersed into a clear solution comprising a molybdenum source and a sulfur source, and then performing treatment through a hydrothermal method, washing and vacuum drying to obtain precursor powder; and putting the precursor powder intothe tubular furnace and performing heat treatment in protective atmosphere for a certain time, and then performing furnace cooling to the room temperature to obtain the molybdenum disulfide compositehollow carbon micro tube negative electrode material of the lithium ion battery. The MoS<2>/hollow carbon micro tube composite material prepared by the method has high electrochemical performance; inaddition, the preparation process is simple, the condition is mild and the preparation method is suitable for large-scale industrial production; and by taking the hollow carbon micro tubes as the carrier, the volume expansion effect in the molybdenum disulfide charging and discharging process can be relieved, so that the electronic conductivity of the composite material is improved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Negative pole piece and lithium ion battery

The invention provides a negative pole piece which comprises a current collector and an active layer. The active layer comprises a first active material, a second active material, a binder and a conductive agent. The gram volume of the first active material is higher than that of the second active material. The volume expansion rate of the first active material is higher than that of the second active material. The content of the binder is gradually reduced along the direction far away from the current collector. In the direction far away from the current collector, the content of the conductive agent and the content of the binder in secondary active layers are distributed in a step-by-step decreasing mode, and the multiple secondary active layers comprise a first active layer, a second active layer and a third active layer. Therefore, the active layers of the battery can be prevented from falling off, the conductivity of the negative pole piece is improved, so that the cycle performance and the capacity of the battery are improved, the capacity exertion of the active material is facilitated, there is more binder in the active layers in contact with the current collector, larger volume expansion of the first active material can be inhibited, the active layers are prevented from falling off, and the cycle performance of the battery can be improved.
Owner:BYD CO LTD

Preparation method of nickel-cobalt-manganese ternary positive electrode spherical material

The invention discloses a preparation method of a nickel-cobalt-manganese ternary positive electrode spherical material. The preparation method comprises the following steps: proportionally mixing andstirring a nickel-cobalt-manganese ternary precursor, a lithium source, a fluxing agent, a sugar source, deionized water and nano mesoporous silica to form slurry, carrying out sanding to control therequired particle size, carrying out spray granulation drying to obtain a mixture, calcining the mixture for the first time, crushing and grading the mixture to obtain a graded material, mixing and coating the graded material and a fluorine source, carrying out secondary calcination, and carrying out crushing, grading, sieving and demagnetizing treatment to obtain the nickel-cobalt-manganese ternary positive electrode spherical material. According to the invention, the fluxing agent, the fluorine source and nano mesoporous silica are introduced into the nickel-cobalt-manganese ternary precursor material, the nickel-cobalt-manganese ternary positive electrode spherical material based on mesoporous silica is prepared through water system stirring, sanding, spray granulation and drying, thepreparation method is optimized while the energy density and the cycling stability of the material are improved, and the problems of large pollution and high operation difficulty are solved.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY CO LTD CO LTD

Separated sanitary absorption article

The invention relates to a separated sanitary absorbing article. The separated sanitary absorbing article comprises an absorbing body and an isolating layer, wherein the absorbing body is separably arranged above the isolating layer; the isolating layer is made of a PE film; the absorption body sequentially comprises a surface layer, a flow guide layer, an absorption core body layer and a bottom layer from top to bottom. and the bottom layer is made of a water-repellent spun-bonded non-woven fabric. The absorption body and the isolating layer are two independent structures and are connected through glue, so that the absorption body is convenient to take down and replace. The absorption body is located above the isolating layer, all the materials are breathable non-woven fabrics or paper and the like, the function of absorbing secretions of the human body is achieved, good breathability is guaranteed, and the lower isolating layer has the functions of isolating liquid from infiltrating and preventing clothes from being polluted. The separated sanitary absorbing article is novel in conception and simple in structure, good air permeability and replaceability of the sanitary absorption article are achieved through the design of the separated sanitary absorbing article, and the sanitary absorbing article is sanitary and convenient to use.
Owner:诺宸股份有限公司

Permeable pebble ditch and permeable structure

PendingCN107246057AActing as an initial retardationReduce runoffSewerage structuresSewage drainingSurface layerEngineering
The invention relates to a permeable pebble ditch and a permeable structure. The permeable pebble ditch comprises a pebble surface layer and a permeable channel, wherein the permeable channel is composed of a first permeable layer, a second permeable layer and an infiltration layer arranged in sequence from top to bottom. The first permeable layer is arranged at the same height level of an outer road and an outer green belt separately, the pebble surface layer comprises a plurality of first pebble particles which are arranged in the upper end of the first permeable layer in an inlaid mode, a perforated pipe is buried in the second permeable layer in the pavement direction of the pebble ditch, one end of the perforated pipe extends out from the second permeable layer, and a plurality of rainwater pores are formed in the side wall of the portion, located in the second permeable layer, of the perforated pipe. According to the permeable pebble ditch and the permeable structure, a preliminary slowing effect can be made on rainwater through the pebble surface layer, the rainwater runoff is effectively reduced, rainwater infiltration is promoted, impounded surface water is prevented, and the pebble ditch has a good landscape effect at the same time; through arrangement of the permeable channel below the pebble surface layer, the pebble ditch has the strong capacity of water infiltration, most pollutants in the rainwater can be well removed, the drainage effect is good, and maintenance is simple.
Owner:WUHAN MUNICIPAL ENG DESIGN & RES INST

Preparation method of sauced ducks

The invention discloses a making method of sauced ducks. The making method comprises the following steps of S1, pretreating raw materials: selecting ducks which are safe in quarantine and appropriatein fat and thin after being slaughtered, performing thorough cleaning, and performing soaking treatment with flowing ozone water; S2, preparing pickling juice; S3, performing pickling: soaking the cleaned ducks in pickling juice, performing pickling, taking out the pickled ducks, and performing draining; S4, performing deep-frying: turning over the ducks in the deep-frying process so as to enablethe ducks to be deep-fried uniformly; S5, performing marinade preparation; S6, marinating: soaking the deep-fried ducks obtained in the step S4 into the marinade prepared in the step S5, firstly performing ultrasonic treatment, then performing decoction with big fire, performing braising with slow fire, and finally performing soaking; and S7, performing air-drying again, performing sterilization and performing vacuum packaging: drying the marinated ducks in shade until no liquid marinade exists on the surfaces of the marinated ducks, and then performing sterilization and vacuum packaging. Thepreparation method of the sauced duck is simple, convenient and feasible in process, and the prepared duck is rich in sauce flavor on the surface, fragrant and pleasant in meat, mellow in taste, capable of comprehensively nourishing a human body and high in nutritional value.
Owner:上海财治食品有限公司

Fireproof flame-retardant and moistureproof cable

The invention relates to the technical field of cables, and relates to a fireproof flame-retardant and moistureproof cable which comprises a flame-retardant PVC sleeve, an aluminum tape layer, an anti-theft layer, a braided layer, a mica tape high-temperature-resistant layer, a surrounding pipe, an outer sheath, an inner lining layer, a ceramic silica gel wrapping tape and a cable core layer. Thealuminum strip layer is welded to the inner side of the flame-retardant PVC sleeve, and the anti-theft layer is arranged at the inner side of the aluminum strip layer. The cable is reasonable and compact in structure and is convenient to use. With the arrangement of an oxygen isolation cavity, the flame-retardant effect of the cable is improved. The cable is covered by a flame blocking strip whenbeing burnt out, so that the spread of fire is prevented further, and the fireproof effect of the cable is improved. The moisture infiltrated from the outside is isolated through the flame-retardant PVC sleeve, the waterproof isolation sleeve and a damp-proof film, after the moisture infiltrates into the surrounding pipe, the moisture is discharged to the outer side of the cable through the waterdiversion pipe, the interior of the cable is protected against damage through a tinned steel wire outer layer, a steel belt wrapping middle layer and a high-carbon galvanized steel wire inner layer inthe anti-theft layer, and the anti-theft performance is enhanced.
Owner:SOUTHERN XINJIANG ELECTRICITY SUPPLY COMPANY OF STATE GRID XINJIANG ELECTRIC POWER +1

Blood pressure reducing compound cellophane noodles containing Auricularia auricula-judae and preparation method of compound cellophane noodles

The invention discloses blood pressure reducing compound cellophane noodles containing Auricularia auricula-judae and a preparation method of the compound cellophane noodles. The compound cellophane noodles comprise raw materials in parts by weight as follows: 70-80 parts of potato starch, 20-30 parts of mung beans, 10-15 parts of dandelion stems and leaves, 8-12 parts of dandelion roots, 6-8 parts of dandelion flowers, 1-4 parts of argy wormwood leaf powder, 1-3 parts of honeysuckle flowers, 1-3 parts of lotus seed cores, 5-7 parts of chicken blood blocks, 4-6 parts of the Auricularia auricula-judae, 2-4 parts of mulberries, 1-3 parts of rock candy, 1-3 parts of salt, 3-5 parts of apple pomace and a proper amount of gingko juice. According to the process, through collocation of the main raw materials including the mung beans and the potato starch, the compound cellophane noodles taste more unique and contain more diversified nutrients. The roots, stems, leaves and pollen of dandelions are processed respectively and added skillfully to process steps for the cellophane noodles, a nutrient solution is prepared from the lotus seed cores, the Auricularia auricula-judae, the mulberries, the rock candy and the like, and the compound cellophane noodles have the health care effect of reducing blood pressure.
Owner:WUHU HONGYANG FOOD
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