摘要:
Embodiments of the invention provide battery separators including reinforcing fibers and methods for making the same. According to one embodiment, a battery separator may include a plurality of first fibers blended with a plurality of second fibers. The plurality of first fibers may include fibers having a fiber diameter of between about 0.05 and 5 microns and the plurality of second fibers may include fibers having a fiber diameter of between about 8 and 20 microns. The first fibers may allow the battery separator to absorb an electrolyte of the battery while the second fibers reinforce the battery separator. An acid resistant binder may bond the first and second fibers. In some embodiments, the second fibers may be arranged with respect to the first fibers so as to form a plurality of fiber strands that are disposed on one or more surfaces of the mat composed of the first fibers.
摘要:
Provided is a separator for alkaline batteries, which has low resistance, while exhibiting excellent strength in electrolyte solutions and excellent shielding properties. A separator for alkaline batteries, which is used for the purpose of separating a positive electrode active material and a negative electrode active material from each other and holding a electrolyte solution. This separator for alkaline batteries is composed of: a base layer that is formed only of alkali-resistant fibers; and an alkali-resistant resin layer that contains 0.1-25 g/m 2 of an alkali-resistant resin. The alkali-resistant fibers of the base layer are configured to contain alkali-resistant cellulose fibers in an amount of 10 to 100% by mass.
摘要:
The present invention relates to a secondary battery separator, and a manufacturing method therefor. The secondary battery separator according to the present invention comprises an organic/inorganic composite porous layer for improving thermal resistance and physical strength, and since the organic/inorganic composite porous layer uses polymer particles as a binder, the secondary battery separator, compared with a separator using a solvent-type binder resin using organic solvents, exhibits excellent permeability.
摘要:
The present invention relates to a lithium ion secondary battery comprising an electrode element comprising a positive electrode, a negative electrode and a separator, and an electrolyte solution, wherein the separator has a shrinking ratio of 2% or less by heat treatment at 90 °C for 6 hours, and a content of physically adsorbed water of the electrode element is 2% by mass or less, or a content of chemically adsorbed water in a positive electrode active material layer of the positive electrode is 1% by mass or less.
摘要:
In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.
摘要:
The invention relates to a separator which is permeable to hydroxide ion, wherein said separator contains at least one Dendrite Stopping Substance such as Ni(OH) 2 , or its precursor.