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11478results about How to "Improve structural stability" patented technology

Continuous shocking tool

ActiveCN104563938AAvoid repeated lifting and loweringAvoid damageBorehole/well accessoriesUpper jointEngineering
The invention relates to a shocking tool, and specifically relates to a continuous shocking tool. The continuous shocking tool comprises an upper joint, an outer sleeve equipped with a medium hole, a piston, a shuttle key, an inserting rod, a sliding sleeve equipped with another medium hole, and a lower joint; the upper joint is inserted from the middle part of the sleeve into the central hole of the outer sleeve; a flowing groove is vertically formed in the top part of the upper joint; a guide hole which communicates with the central hole in the outer sleeve is formed in the sidewall of the flowing groove; a tapered groove is formed in the bottom part of the upper joint; the piston is vertically sealed and arranged in the central hole of the outer sleeve; the bottom part of the upper joint is inserted into an inner cavity of the piston; a sealing ball is arranged in the inner cavity of the piston; the shuttle key is positioned in the central hole of the outer sleeve; the inserting rod is positioned in the central hole of the outer sleeve; a bulge is fixedly arranged on the inner wall of the outer sleeve and below the shuttle key; a compression spring is arranged between the bulge and the base; the sliding sleeve is inserted from the bottom part of the outer sleeve into the outer sleeve; the lower joint passes through the central hole of the sliding sleeve from the bottom part of the sliding sleeve; one end of the lower joint, passing through the sliding sleeve is fixedly connected with the bottom part of the inserting rod. The continuous shocking tool has the beneficial effects of being good in shocking effect and high in shocking efficiency.
Owner:JEREH ENERGY SERVICES

Electrolyte solution for high-capacity lithium-ion battery, preparation method and lithium-ion battery

The invention discloses an electrolyte solution for a high-capacity lithium-ion battery. The electrolyte solution includes non-aqueous solvent, lithium hexafluorophosphate, negative electrode film forming additive, positive electrode surface activity inhibiting additive and transition metal ion complexant; the negative electrode film forming additive includes organic ester negative electrode film forming additive of 1 to 10wt% of the total electrolyte solution and inorganic lithium salt negative electrode film forming additive of 0.5 to 2wt% of the total electrolyte solution; the positive electrode surface activity inhibiting additive includes fluorinated ether additive of 1 to 5wt% of the total electrolyte solution and nitrile additive of 0.1 to 5wt% of the total electrolyte solution; the transition metal ion complexant is of 0.1 to 1.0wt% of the total electrolyte solution. The electrolyte solution is adaptive to the high-capacity lithium-ion battery and is capable of optimizing the circulating performance and high-temperature storage performance of the lithium-ion battery. The invention further provides a preparation method of the electrolyte solution and the high-capacity lithium-ion battery adopting the electrolyte solution.
Owner:GUANGZHOU TINCI MATERIALS TECH
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