JP2016072117A5

JP2016072117A5 -

Info

Publication number: JP2016072117A5
Application number: JP2014201284A
Authority: JP
Filing date: 2014-09-30
Publication date: 2017-08-24
Anticipated expiration: 2034-09-30

Description

［２］前記官能基が、エポキシ基、カルボキシル基、及びアミド基から成る群より選択される１種以上である、［１］に記載のセパレータ。
［３］前記第１の樹脂バインダー（ｂ−１−１）の官能基当量が、前記第２の樹脂バインダー（ｂ−１―２）の官能基当量よりも少ない、［１］又は［２］に記載の蓄電デバイス用セパレータ。 [2] The separator according to [1], wherein the functional group is at least one selected from the group consisting of an epoxy group, a carboxyl group, and an amide group.
[3] The functional group equivalent of the first resin binder (b-1-1) is less than the functional group equivalent of the second resin binder (b-1-2), [1] or [2] The separator for electrical storage devices described in 1.

Claims

A porous substrate layer (A), and a porous layer (B) containing two or more kinds of resin binders (b-1) and an inorganic filler (b-2);
The surface softening temperature of the porous layer (B) is 30 to 60 ° C.,
A first resin binder (b-1-1) having a glass transition temperature (Tg) of 30 ° C. or higher and a second resin having a glass transition temperature (Tg) of less than 30 ° C. in the resin binder (b-1). A binder (b-1-2) is included,
The functional group equivalent of the resin binder (b-1) on the outer surface of the porous layer (B) is 0.5 mmol / g or less, and the resin binder (b-1) on the outer surface of the porous layer (B). Functional group equivalents;
The separator for electrical storage devices characterized by the difference with the average functional group equivalent of all the resin binders (b-1) in the said porous layer (B) being 0.15 mmol / g or more.

The separator according to claim 1, wherein the functional group is at least one selected from the group consisting of an epoxy group, a carboxyl group, and an amide group.

The electrical storage device according to claim 1 or 2, wherein the functional group equivalent of the first resin binder (b-1-1) is less than the functional group equivalent of the second resin binder (b-1-2). Separator.

The electrical storage device separator according to any one of claims 1 to 3, wherein the air permeability is in a range of 10 to 500 seconds / 100 cc.

Electrodes,
The laminated body characterized by being laminated | stacked with the separator for electrical storage devices as described in any one of Claims 1-4.

An electrical storage device comprising the laminate according to claim 5.