It is the only glossmeter combining highest accuracy, ease-of-use and multiple functionality – essential for today`s testing requirements. JIS Z Road Markings – Traffic Signs. Gloss. Laboratory. Road Markings. Traffic Signs. The following devices are in accordance with JIS Z The very first glossmeter featuring a ” touchscreen display for measurement of all gloss ranges from matt to high gloss up to 2′ GU.
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If too many ultra-microfibers are used, they affect the basis weight or thickness of the composite non-woven fabric. In particular, the cathode collector is preferably aluminum foil and the anode collector is preferably copper foil.
The ultra-microfiber may have a core-sheath structure. Therefore, the glossiness is desirously 3 or higher.
As the collector, materials with excellent oxidation resistivity are used for the cathode and materials with excellent reduction resistivity are used for the anode. The lithium-ion secondary battery separator according to claim 2wherein the non-woven fabric is formed from core-in-sheath type composite fibers containing a thermoplastic material as the sheath component or the core-in-sheath type composite fibers and other fibers of thermoplastic materials.
A mixture of 15 g of artificial graphite, 0. Advantageous Effect of Invention The lithium-ion secondary battery separator of the present invention is thin and safe because it is composed of ultra-microfibers and it does not short-circuit in spite of being high in porosity and also excellent in electrolyte retainability and rate characteristics. The invention claimed is: Separator for a nonaqueous secondary battery and a nonaqueous secondary battery.
Standard JIS Z 8741
The cathode preferably contains a conductive agent. Examples of the carbon material include those produced by sintering organic polymers such as polyacrylonitrile, phenol resin, phenol novolak resin, cellulose, artificial graphite and natural graphite.
Next, description will be given to a lithium-ion secondary battery comprising the separator of the present invention. When a composite fiber is used, preferred is such a temperature range that only a component which should be heat-fused melts and the other components does not melt. Artificial graphite, carbon black acetylene black and nickel powder are suitably used as such a conductive agent.
No particular limitation is imposed on the type of method for heat-pressing the composite product if the method is for applying pressure to the product to be thinned while heat is applied to the product to soften the fibers and melt a part thereof. Recently, the use of a non-woven fabric having excellent liquid retainability and the like as a separator has been, therefore, proposed.
Non-aqueous electrolyte battery separator and a non-aqueous electrolyte battery. The lithium-ion secondary battery separator according to claim 14wherein the core component and sheath component of the core-in-sheath type composite fibers are polypropylene and polyethylene, respectively.
The present invention has an object to provide a separator for a lithium-ion secondary battery that solves the problems of the conventional art, i. However, this type of separator has an extremely small pore size that is on the order of submicron or smaller and thus when the viscosity of an electrolyte is high, has had a problem that the electrolyte is unlikely to permeate into the separator and the efficiency of the battery assembly becomes poor. Examples of the active material include those mainly composed of a lithium-containing transition metal oxide.
Watch this video for more information on how to calibrate the ZOL The pressure is from 0. The foil was punched out to be 15 mm in diameter and then pressed thereby producing an anode.
Generally, the glossiness is adjusted by lowering the pressure when the heat pressing temperature is raised and increasing the pressure when the heat pressing temperature is lowered. As shown in FIG. Measuring Geometries dual angle: If the material constituting the ultra-microfiber has a lower melting point than the thermoplastic material, the microfiber would melt before the thermoplastic material melts.
The present invention has been accomplished as the results of extensive studies to achieve the above object.
Zehntner ZOL Glossmeter
If the amount of the ultra-microfibers to the non-woven jjis mass is too less, the ratio of short-circuit would not be improved. The collector may be of a foil- or mesh-like shape. Accessories Popular Accessories Popular Accessories.
The lithium-ion secondary battery separator according to claim 1wherein the thermoplastic material is at least one type of thermoplastic material selected from the group consisting of polyolefins, polyesters, polyamides, polyimides, polyacrylonitriles and polyvinyl alcohols.
The ultra-microfiber may be a continuous fiber or a short fiber if it can be fusion-fixed to the non-woven fabric by s pressing.
Display Connects to computer. The lithium-ion secondary battery separator according to claim 12wherein the thermoplastic material is at least one type of thermoplastic material selected from the group consisting of polyolefins, polyesters, polyamides, polyimides, polyacrylonitriles and polyvinyl alcohols.
Laminated separator for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery member, and nonaqueous electrolyte secondary battery. The ultra-microfibers used in the present invention may be produced by various methods such as Melt-Blown method, electrospinning and melt-electrospinning methods.
The nonaqueous electrolyte used in the lithium-ion secondary battery may be an electrolyte produced by dissolving a lithium salt in a solvent.