Provided are a separator and a method for producing the same, and more particularly, a separator which may secure battery stability and has characteristics of significantly low heat shrinkage even at a high temperature and minimally increased resistance, and a method for producing the same.

The separator according to the present disclosure includes: a porous substrate; and an inorganic particle layer positioned on one or both surfaces of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a rod-shaped inorganic binder.

Provided are a separator and a method for producing the same, and more particularly, a separator which may secure battery stability and has characteristics of significantly low heat shrinkage even at a high temperature and minimally increased resistance, and a method for producing the same.

The separator according to the present disclosure includes: a porous substrate; and an inorganic particle layer positioned on one or both surfaces of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a rod-shaped inorganic binder.

An energy storage device includes: an electrode assembly; a case that houses the electrode assembly; and a spacer that is a side spacer disposed between the electrode assembly and the case. The spacer has a rear portion disposed to face the electrode-assembly end portion, a side portion extended in a direction along the side surface of the electrode assembly, and a connection that rotatably connects the side portion to the rear portion.

The present disclosure provides a battery cell structure of a button battery and a manufacturing method thereof, and a button battery, where the battery cell structure of the button battery includes a winding core which is formed by winding a laminated structure and is provided with a hollow inner hole, the laminated structure includes at least one positive electrode sheet, at least one negative plate, and a separator which separates the at least one positive electrode sheet from the at least one negative electrode sheet, at least two ends of the winding core are provided with a separator bonding layer wrapping the winding core, and the separator bonding layer is used for fixing the positive electrode sheet and the negative electrode sheet.

The present disclosure provides a battery cell structure of a button battery and a manufacturing method thereof, and a button battery, where the battery cell structure of the button battery includes a winding core which is formed by winding a laminated structure and is provided with a hollow inner hole, the laminated structure includes at least one positive electrode sheet, at least one negative plate, and a separator which separates the at least one positive electrode sheet from the at least one negative electrode sheet, at least two ends of the winding core are provided with a separator bonding layer wrapping the winding core, and the separator bonding layer is used for fixing the positive electrode sheet and the negative electrode sheet.

An alkaline electrochemical cell includes a cathode, an anode which includes an anode active material, and a non-conductive separator disposed between the cathode and the anode, wherein from about 20% to about 50% by weight of the anode active material relative to a total amount of anode active material has a particle size of less than about 75 μm, and wherein the separator includes a unitary, cylindrical configuration having an open end, a side wall, and integrally formed closed end disposed distally to the open end.

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

In the present invention, in laminated separator rolls 12U and 12L, laminated long separator sheets 12a and 12b are wound such that a surface B (which is of an aramid layer (heat-resistant layer) and is opposite to a surface contacting with the porous film) faces an inner side (core u, l side). From this, it is possible to provide the laminated separator roll which can inhibit change in color of the porous layer included in the porous long separator sheet.

In the present invention, a porous separator roll (12U, 12L) is wrapped with a wrapping material (21) whose average transmittance with respect to light having a wavelength of 360 nm to 390 nm is 25% or lower. From this, it is possible to provide a package of a porous separator roll which package can inhibit change in color of a separator, and can thus provide a high-quality separator with good appearance.