4results about How to "Improve binding tightness" patented technology

The invention provides a battery monomer, a negative pole piece, a battery device and a power utilization device, the battery monomer comprises the negative pole piece, the negative pole piece comprises a bottom coating arranged on at least one side of a negative current collector, and the bottom coating comprises a plurality of first bulges protruding back to the negative current collector and a first concave part between two adjacent first bulges; the bottom coating layer comprises a first binder; the active material layer is arranged on one side, opposite to the negative electrode current collector, of the bottom coating layer, the active material layer comprises a plurality of second bulges protruding towards the bottom coating layer and second concave parts between two adjacent second bulges, and the active material layer comprises a second binder; the first bulge is coupled with the second concave part, and the second bulge is coupled with the first concave part; the mass content a of the first binder in the undercoat layer is greater than the mass content b of the second binder in the active material layer. The dynamic performance and the cycle life of the battery monomer are relatively good; the battery device and the power utilization device at least have the above beneficial effects.

The utility model relates to the technical field of LED packaging, specifically relates to a kind of patch LED lamp pearl support structure, including support body, bowl cup, positive electrode conducting terminal, negative electrode conducting terminal, through-hole etc.The utility model overcomes the deficiency of prior art, by setting up metal filling through-hole on conducting terminal, establishes the efficient vertical heat dissipation path from chip to PCB board, effectively reduces the junction temperature of LED chip, improves luminous efficiency and life, the slope structure of bowl cup is combined with the high reflectivity coating in it, can more effectively reflect light and export, reduces internal absorption, improves brightness, metal through-hole enhances the embedding strength and combined tightness of metal terminal and plastic body, reduces the stress generated due to thermal expansion and contraction, improves the air tightness and anti-mechanical impact ability of product.

This invention relates to a fiber-reinforced wood-plastic composite product and its preparation method, belonging to the field of polymer composite materials technology. The preparation method of the fiber-reinforced wood-plastic composite product of this invention involves reacting maleic anhydride-grafted polyethylene with 6,6-dimethylspiro[bicyclo[3.1.1]hept-2,2'-epoxyethylene] to obtain hydroxyl-grafted polyethylene. Then, the hydroxyl-grafted polyethylene is subjected to a substitution reaction with 4-bromopyridine-2,6-dicarboxaldehyde to obtain aldehyde-grafted polyethylene. Finally, the aldehyde-grafted polyethylene and straw powder grafted with an amino-polytetrahydrofuran silane coupling agent, and nano-mica sheets grafted with an amino-polyethylene glycol silane coupling agent, are subjected to a Schiff base reaction to obtain a polyethylene composite grafted with straw powder and nano-mica sheets. Finally, the composite is molded with polyethylene to obtain the final product.

The application discloses an anti-aging cable and belongs to the cable field. The anti-aging cable comprises a cable core and a shielding layer, a filling layer and a heat insulation layer. The shielding layer is wrapped outside the cable core. The filling layer is filled between the cable core and the shielding layer. The heat insulation layer is wrapped outside the shielding layer. The sheath comprises a PTFE outer sheath layer, a THV middle sheath layer and a PCTFE inner sheath layer. The PCTFE inner sheath layer is wrapped outside the braided layer. The THV middle sheath layer is wrapped outside the PCTFE inner sheath layer. The PTFE outer sheath layer is wrapped outside the THV middle sheath layer. The application has the effect of improving the anti-aging capability of the cable.