9results about How to "Increase infiltration rate" patented technology

A multifunctional rainwater garden system for urban inland inundation treatment comprises a rainwater garden, an ecological pool and an underground water storage tank. The rainwater garden is arranged along the hardened ground, the ecological pool is arranged at the low-lying position of the inner side of the rainwater garden, a clear water tank of the underground water storage tank is connected with the ecological pool through a perforated pipe at the bottom, filtered rainwater is collected through the perforated pipe, and a rainwater tank of the underground water storage tank is connected with the ecological pool through an overflow grating and a pipeline on the bank. Overflowed rainwater is collected through the overflow pipe. According to the system, the rainwater infiltration speed and infiltration amount can be increased, the rainwater quality is preliminarily purified, the purified rainwater is collected for simple life use and flower and tree irrigation, the rainwater utilization rate is increased, rainfall flood regulation and storage and rainwater drainage are integrated, the drainage pressure of urban pipelines is relieved, and the risk and probability of urban inland inundation are reduced.

This invention provides a soil moisture infiltration structure for apricot forests in the Loess Plateau region. The structure includes a tree basin with a central pit where a tree is planted. Several infiltration pipes are evenly distributed around the pit. Each infiltration pipe has a tube body with openings at both ends, and the lower section of the tube wall has perforations. This soil moisture infiltration structure for apricot forests in the Loess Plateau region collects rainwater by excavating the tree basin and burying the infiltration pipes. The pit promotes rainwater infiltration along the sidewalls of the plant, while the pipes guide the rainwater into the deeper soil layers, promoting water absorption. Water and fertilizer regulation is achieved through these infiltration pipes. During rainfall, the structure collects rainwater and promotes deeper soil water absorption, accelerating the infiltration rate and reducing soil moisture evaporation. This effectively improves the soil moisture environment around the rhizosphere, promotes apricot tree growth, and increases fruit yield.

The application discloses a pole piece, an electrochemical device and an electronic device. The pole piece comprises a current collector and an active material layer. The active material layer is arranged on one surface of the current collector. The active material layer is provided with a first groove, a second groove and a third groove. The first groove extends along the length direction of the current collector. One end of the second groove is communicated with the first groove. The other end of the second groove is extended and arranged. A first included angle is formed between the extension direction of the second groove and the extension direction of the first groove. One end of the third groove is communicated with the second groove. The other end of the third groove is extended and arranged. A second included angle is formed between the extension direction of the third groove and the extension direction of the second groove. The pole piece aims to improve the transverse infiltration speed of the electrolyte in the battery and improve local lithium precipitation.

The application relates to a diaphragm and an electrochemical device and an electronic device comprising the same, and belongs to the technical field of electrochemical energy storage. The diaphragm provided by the application comprises a diaphragm base material and a solid-state ion source layer arranged on at least one side of the diaphragm base material, the solid-state ion source layer comprising lithium salt, a functional additive and an ion conductor composite, the ion conductor composite comprising a binder and an ion conductor; the lithium salt comprises at least one of lithium bisfluorosulfonylimide, lithium bis-trifluoromethanesulfonylimide, lithium difluoro(oxalato)borate, lithium tetrafluoroborate and lithium bis(oxalato)borate. The diaphragm provided by the application can be matched with a non-solute and low-viscosity electrolyte, the liquid injection time in preparation is reduced, the controllable release of lithium salt is realized, and the cycle stability and safety performance are improved.

A nonwoven fabric with longitudinal fluid conducting function, the nonwoven fabric comprises a first fiber web and a second fiber web, and each fiber web has a plurality of discrete longitudinal fiber bundles, the distribution density of the longitudinal fiber bundles is 1-50 bundles / cm 2 The fibers of the longitudinal fiber bundles are the same as the fibers in the fiber web, by arranging a plurality of discrete longitudinal fiber bundles in each fiber web, when the liquid reaches the fiber web with longitudinal fiber bundles, the liquid will quickly penetrate to the second fiber web along the longitudinal fiber bundles distributed therein or even be conducted to the absorbent core, realizing the rapid longitudinal fluid conducting of the liquid and improving the liquid infiltration speed.

The utility model relates to the technical field of water permeable bricks, in particular to an environment-friendly water permeable brick made of slag, which comprises a water permeable brick body, a water guide mechanism is arranged on the surface of the water permeable brick body, and the water guide mechanism comprises a first drain hole, a second drain hole, a strip-shaped water guide groove, a first annular water guide groove, a second annular water guide groove and a water guide pipeline. The first drainage hole is formed in the center of the upper surface of the water permeable brick body, the second drainage hole is formed in the inner bottom wall of the first drainage hole, the water guide pipeline is inserted into the second drainage hole, and the surface of the water guide pipeline is fixedly connected with multiple sets of supporting blocks; the two groups of annular water guide grooves gather water flow into the strip-shaped water guide grooves, then the radial strip-shaped water guide grooves can conveniently and rapidly gather rainwater into the first drainage holes, and the rainwater is rapidly guided into the ground through the water guide pipelines, so that the rainwater rapidly permeates to the outer side through the multiple groups of water seepage holes, and the water permeation speed of the water permeable brick body is effectively improved.

The utility model relates to the field of disposable hygienic products, in particular to a novel folding curve channel type absorber sheet which comprises an absorption layer and an upper cover layer covering the upper end face of the absorption layer, and the absorption layer is composed of base cloth and liquid absorption materials attached to the base cloth. The two sides of the absorption layer are cut in an S mode to form side portions of a wave curve structure, the two side portions are folded upwards and close to each other to form a wave curve-shaped groove which is located in the center of the absorption layer and used for diversion, and the upper cover layer covers the surface of the groove to fix the two side portions. The utility model solves the problem of infiltration rate of the existing absorption core body.

The application discloses a lithium ion battery diaphragm with thermal stability and a preparation method thereof, and belongs to the technical field of lithium battery diaphragms. The method comprises the following steps: polyvinylidene fluoride is stirred and mixed in N-methyl pyrrolidone to obtain a preliminary slurry; boehmite powder is placed in the preliminary slurry, stirred and mixed, and ultrasonic treatment is conducted to obtain a final slurry; the final slurry is scraped and coated onto a glass plate and dried to form a shape; and the dried coating layer is peeled off from the glass plate to obtain the lithium ion battery diaphragm. The application can simply and economically obtain a novel diaphragm for a lithium ion battery and is easy to be mass-produced industrially. The diaphragm has effectively improved thermal stability, can effectively inhibit the thermal runaway risk of a lithium ion battery in the case of fire and the like, and reduces personnel casualties and property losses.

The application discloses a kind of negative electrode slurry, negative electrode sheet and preparation method thereof, belong to negative electrode slurry technical field;The negative electrode slurry includes: negative electrode active material 84.5~99 parts, water 80~140 parts, dispersing agent 0.1~1.5 parts, conductive agent 0.1~4 parts, binder 0.1~4 parts, electrolyte reserve storehouse emulsion 0.01~4 parts, the high molecular particle of core-shell structure is contained in the electrolyte reserve storehouse emulsion, the inner core of high molecular particle is acrylate, butadiene and styrene copolymer, shell is the copolymer of acrylic acid and acrylonitrile.In the present application, electrolyte reserve storehouse emulsion is added in negative electrode slurry, the inner core of high molecular particle contained therein can effectively adsorb electrolyte, can play the role of liquid preservation;And shell has certain rigidity, avoid the volume expansion of inner core after adsorbing electrolyte and then affect the performance of negative electrode sheet.