8results about How to "Improve migration speed" patented technology

The invention discloses a silicon negative electrode active material which sequentially comprises a silicon-based material inner core, a flexible solid electrolyte or gel electrolyte middle layer and a carbon-coated outer layer from inside to outside, the flexible solid electrolyte or gel electrolyte middle layer comprises a conductive agent, and the conductive agent comprises a carbon nanotube. According to the silicon negative electrode active material, the surface of the silicon-based material is coated with the flexible solid-state or gel-state electrolyte, so that the volume change of the negative electrode active material in the charging and discharging process is effectively relieved, the electrolyte is isolated, the stability of the negative electrode active material is improved, and the negative electrode active material has relatively high reversible specific capacity and relatively high specific surface area; and excellent long cycle performance is shown.

The application discloses an inorganic composite solid electrolyte and a preparation method thereof, and relates to the technical field of lithium batteries, and specifically discloses an inorganic composite solid electrolyte and a preparation method thereof. The preparation method of the inorganic composite solid electrolyte comprises the following steps: S1, mixing lithium salt, metal oxide A, metal oxide B and ammonium dihydrogen phosphate, wherein the metal oxide B is titanium oxide, and intermittent vibration ball milling is performed to obtain mixed powder; S2, adding lanthanum oxide and germanium oxide into the mixed powder obtained in the step S1, and continuing to perform intermittent vibration ball milling to obtain composite powder; and S3, performing low-temperature sintering on the composite powder obtained in the step S2, and pressing to obtain an inorganic composite solid electrolyte film layer. The preparation method can significantly improve the reaction activity and synergistic effect among raw materials by adopting two-step intermittent vibration ball milling and one-step low-temperature sintering, and the conductivity of the inorganic composite solid electrolyte and the lithium ion transmission performance and cycle life of the solid battery are improved, and meanwhile, no solvent is used in the preparation process, and the sintering cost is reduced.

The application discloses a preparation method of a polyanionic sodium ion battery positive electrode material, and comprises the following steps: S1, preparation of a precursor solution: a transition metal M source, an acid solution and a complexing agent are mixed and dissolved to form a precursor solution; S2, preparation of a pre-oxidized precursor solution: an oxidizing agent is added to the solution to generate a pre-oxidized precursor solution; S3, preparation of M(OH)x precipitation: a pH value of the pre-oxidized precursor solution is adjusted so that transition metal ions in the solution are precipitated in the form of M(OH)x; S4, preparation of a precursor powder: the M(OH)x precipitation, a sodium source, a phosphorus source and a carbon source are mixed wetly to obtain a precursor slurry; S5, drying of the precursor powder: the precursor slurry is dried and separated to obtain a dried precursor powder; and S6, high-temperature sintering: the precursor powder is sintered at a high temperature to obtain a polyanionic material. The polyanionic sodium ion battery positive electrode material has the characteristics of excellent electrochemical performance, high compaction density and low cost.

The utility model relates to microorganism strain proportioning technical field discloses a kind of experimental devices for microorganism strain proportioning, including jar body, installation position is opened in jar body;Mixed component, mixed component is set in jar body, and mixed component is used to proportion and mix to microorganism strain, and mixed component includes driving motor, movable frame, auger shaft and fixed block, driving motor is fixedly connected with jar body, movable frame is set in jar body, movable frame is drivingly connected with driving motor, auger shaft array is set in jar body, each auger shaft is drivingly connected with driving motor, multiple fluid effects are formed by the cooperation of mixed component internal parts, under the cooperation of multiple fluid effects, avoid in stirring Large amount of foam covers liquid surface to hinder oxygen dissolving, lead to aerobic bacteria growth is limited;Foam layer hinders liquid flow, causes local strain or nutrient concentration difference;Foam occupies reactor space, reduces actual utilization rate and other problems.

The application discloses a data migration method and related device, and a data migration system comprises a data migration unit, the data migration unit comprises a thread manager, at least one data reader and at least one data writer. The thread manager acquires the disk bandwidth of the source cluster, determines the number of threads for executing data migration according to the disk bandwidth, and establishes one or more threads according to the number of threads. The target thread corresponds to a target data reader and a target data writer, the target data reader acquires the target row key from the message queue, acquires the target to-be-migrated data corresponding to the target row key from the source cluster according to the target row key, and sends the target to-be-migrated data to the target data writer, and the target data writer stores the target to-be-migrated data into the target cluster. Therefore, the number of threads is dynamically adjusted according to the disk bandwidth to dynamically adjust the migration speed of data according to the business situation, and the influence of the data migration business on the source cluster business is avoided.

The embodiment of the invention provides a lithium supplementing method, a lithium supplementing device, a lithium supplementing negative plate, a lithium supplementing battery and electronic equipment, and relates to the technical field of batteries. The method is applied to a lithium supplementing device, the lithium supplementing device comprises a rolling mechanism and a heating mechanism, the rolling mechanism comprises a first compression roller and a second compression roller, and the method comprises the following steps: conveying a negative pole piece and a lithium source material to a gap between the first compression roller and the second compression roller; controlling the first compression roller and the second compression roller to move so as to roll the lithium material on the lithium source material onto the active substance layer of the negative pole piece to obtain a lithium-supplemented negative pole piece; and controlling the heating mechanism to at least heat the binding surface of the lithium material and the active material layer so as to accelerate and uniformly permeate the lithium material into the active material layer. According to the lithium supplementing method provided by the embodiment of the invention, the binding surface of the lithium material and the active material layer is heated through the heating mechanism, so that the rate that the lithium material permeates into the active material layer can be improved, the production efficiency and the yield of the battery can be improved, and the production cost can be reduced.

According to the present invention, a sulfide-based solid electrolyte is provided, the sulfide-based solid electrolyte comprising a Li-P-S-based compound, the Li-P-S-based compound comprising at least one compound selected from the group consisting of P < 1-b > M S < 4-a > Sea3-(0 lt; a is less than or equal to 1.5, 0lt; blt; and M represents at least one element selected from the group consisting of Si, Ge, Sn, and Al), and a lithium secondary battery in which an electrolyte layer containing the sulfide-based solid electrolyte is provided on a positive electrode.

The application discloses a kind of photo-thermal synergic driving electronic paper and its driving method.Electronic paper includes the upper substrate and lower substrate of opposite arrangement, the electrophoretic layer being arranged between upper substrate and lower substrate, the upper electrode and lower electrode being arranged in the opposite two sides of electrophoretic layer, the photo-thermal conversion layer being arranged between electrophoretic layer and lower electrode, infrared array being arranged in the side of lower substrate away from electrophoretic layer and driving module.Electrophoretic layer includes dispersion medium and charged particle suspended in dispersion medium.Infrared array includes multiple independently controlled light source units, for emitting pulsed near-infrared light to photo-thermal conversion layer.Driving module is electrically connected with upper electrode, lower electrode and infrared array respectively.The application realizes millisecond level response speed by photo-thermal synergic driving, and single refresh power consumption is controlled within 25% of traditional scheme, and still can maintain good response performance under low temperature environment, while supporting local refresh and continuous gray scale display.