4results about How to "Different shapes" patented technology

The application relates to the field of new energy batteries, in particular to a positive pole piece, a preparation method thereof and a battery; the positive pole piece comprises a current collector, a positive pole active material layer arranged on at least one side of the current collector in the thickness direction and a glue layer arranged on the surface of the positive pole active material layer away from the current collector; the glue layer comprises a binder; the thickness ratio of the glue layer to the positive pole active material layer is 1: (10-100). The setting of the protective layer in the positive pole piece facilitates long-term storage and classification and temperature and humidity control of the positive pole piece; in the battery assembly process, the protective layer is peeled off, and the remaining current collector and coating structure are assembled with a diaphragm, a negative pole piece and other battery components, the operation is simple and easy to operate. Meanwhile, the setting of the glue layer can avoid energy loss caused by dropping of the positive pole active material.

The invention discloses a ceramic rock plate with a starlight effect and a preparation method thereof, the ceramic rock plate sequentially comprises a green body layer, a cover glaze layer, a pattern decoration layer and a starlight glaze layer from bottom to top, and preparation raw materials of the starlight glaze layer comprise basic glaze, magnesium-containing minerals, calcium-containing minerals, ferric oxide and zinc oxide. Magnesium-containing minerals, calcium-containing minerals, ferric oxide and zinc oxide contained in the preparation raw materials of the starlight glaze layer form pyroxene crystals, zinc spinel, mullite, zinc oxide and other crystals with the basic glaze in the firing process, and the crystals present a shiny starlight effect under the illumination condition. Meanwhile, the crystals with relatively higher refractive indexes generate a stronger refraction effect on light, and the crystals with relatively lower refractive indexes generate a relatively weaker refraction effect, so that the glaze surface generates a light and dark alternated refraction effect; and the crystals are different in size and shape, so that the starlight effect is rich in stereoscopic impression and layering sense. And various crystals are separated out, so that the hardness, the wear resistance and the antifouling property of the glaze surface are improved.

The application discloses an iterative unsupervised non-intrusive load identification method and system, and the method comprises the following steps: obtaining a load power time sequence; pre-processing the load power time sequence; detecting key points of the load power time sequence; extracting a load power subsequence and matching the load power subsequence with a template; judging whether the number of unknown load power subsequences accumulates to 30; performing theme discovery on the load power subsequence; judging whether the number of subsequences in each group in a non-directional graph is not less than 10; performing electrical appliance power waveform theme sequence mode mining; constructing corresponding electrical appliance load mark templates, and updating a load mark template library of a non-intrusive load monitoring system; and the system comprises corresponding processing modules. The application can autonomously discover simple and complex power consumption modes of different types of electrical appliances in various unfamiliar scenes, and is suitable for the diversity of power consumption modes of the same type of electrical appliances and the difference of power consumption modes of the same electrical appliance.

The invention relates to a biomedical titanium alloy surface modification method, and belongs to the technical field of laser application. The method comprises the following steps: firstly, machining a groove-micro-ripple composite structure on the surface of a clean and polished nickel-titanium alloy material by using femtosecond laser; then, rich nanosheets are formed on the basis of the structure through alkali heat treatment, and a groove-micro ripple-nanosheet multistage micro-nano composite structure is obtained; then, the multi-stage micro-nano composite structure is put into an alkaline Tris buffer solution containing dopamine hydrochloride to be coated with a polydopamine coating; and finally, the multi-stage micro-nano composite structure coated with the polydopamine coating is placed in a silver nitrate solution to load silver ions, surface modification of the titanium alloy is completed, and the biological activity, the osseointegration capacity and the bacterial infection resistance of the titanium alloy are improved.