摘要:
In an exchange NMR measurement of a fluoride ion of an electrical storage device multilayer separator that comprises porous layer A which contains a polyolefin resin and porous layer B which contains inorganic particles, r(AB) satisfies the relationship: r(AB) ≥ 45 , where r(AB) is the ion transmission rate (%) between porous layer A and porous layer B in a mixing time of 100 ms.
摘要:
Provided is a separator for a power storage device that combines high permeability and battery safety at high temperature. The separator for a power storage device has an inorganic content layer that contains inorganic particles and polyolefin resin. In a cross section of the inorganic content layer, a ratio b of the area occupied by the inorganic particles is 9-35% [inclusive], the ratio of the area occupied by vacancies is 20-60% [inclusive], and a TD direction heat shrinkage a at 150°C of the separator for a power storage device is 4% or less.
摘要:
A separator for electricity storage devices, which comprises a porous layer that contains a polyolefin resin and an ionic compound, and which is configured such that: the content of the ionic compound in the porous layer is from 5% by mass to 99% by mass (inclusive); and the degree of whiteness of this separator is more than 98.0.
摘要:
This separator for a power storage device has a porous layer containing a polyolefin resin and surface-treated ionic compound. The ionic compound content of the porous layer is 5 to 99 mass%, and the degree of surface hydrophilicity of the ionic compound is 0.10 to 0.80.
摘要:
An electrolyte containing a non-aqueous solvent, a lithium salt (A) and at least one compound (B) selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2) and a compound having a constitutional unit represented by the following formula (3a) and a constitutional unit represented by the following formula (3b).