B32B2457/10

APPARATUS AND METHOD FOR MANUFACTURING CELL
20220052372 · 2022-02-17 · ·

Discussed is an apparatus for manufacturing a cell, the apparatus including: a center electrode reel from which a center electrode is to be unwound; a first heater configured to apply radiant heat to the unwound center electrode; an upper separator reel from which an upper separator to be laminated on a top surface of the center electrode is to be unwound; a lower separator reel from which a lower separator to be laminated on a bottom surface of the center electrode is to be unwound; an upper electrode reel from which an upper electrode to be laminated on a top surface of the upper separator is to be unwound; and a second heater configured to apply radiant heat to the unwound upper electrode.

Polyester film, laminate including the film, and laminated assembly including the laminate and sealant layer

A polyester film has a maximum surface height on a surface A side (SRmaxA) of 1500 nm to 7000 nm, a maximum surface height on a surface B side (SRmaxB) of 5 nm or more but less than 7000 nm, the SRmaxA and the SRmaxB satisfying the following relation (1), and a strength at break at 25° C. of 200 MPa to 330 MPa in both the longitudinal direction and the width direction.
SRmaxA>SRmaxB  (1)

BATTERY PACKAGING MATERIAL

Battery packaging material wherein a sheet-like laminated body is formed by sequentially stacking at least a base layer, metal layer, and sealant layer, the battery packaging material being equipped with substantially rectangular space that is formed to protrude from the sealant layer side toward the base layer side, and accommodates a battery element on the sealant layer side. In planar view from the base layer side view, a first and second curved sections are provided from the center portion toward the battery packaging material end parts, in a cross section in the thickness direction on a line connecting opposing corner parts protruding in a substantially rectangular shape. The thickness (a) of the metal layer at the first curved section, (c) of the metal layer at the second curved section, and (b) of the metal layer at the section located between the first and second curved sections, satisfy the following relationship a≧b>c or a≧c>b.

ADHESIVE COMPOSITION FOR ELECTROCHEMICAL DEVICE, ADHESIVE LAYER FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE
20170275506 · 2017-09-28 · ·

Provided is an adhesive composition for an electrochemical device capable of forming an adhesive layer that has excellent adhesiveness in electrolysis solution and can improve electrical characteristics of an electrochemical device. The adhesive composition can be used for adhering an electrode assembly and a casing to one another. The adhesive composition contains organic particles having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion. A polymer of the core portion has a degree of swelling in electrolysis solution of at least a factor of 5 and no greater than a factor of 30, whereas a polymer of the shell portion has a degree of swelling in electrolysis solution of greater than a factor of 1 and no greater than a factor of 4.

BATTERY PACKAGING MATERIAL

A battery packaging material has an excellent ink printing characteristic on a base-layer-side surface. This battery packaging material has a laminated body formed by sequentially stacking at least a base layer, a metal layer, and a sealant layer, with the wet tensile strength of the surface of the base layer being 32 mN/m or greater.

ELECTRICAL MULTILAYER LAMINATION TRANSFER FILMS

Transfer films, articles made therewith, and methods of making and using transfer films to form an electrical stack are disclosed. The transfer films (100) may include a plurality of co-extensive electrical protolayers (22, 23, 24) forming an electrical protolayer stack (20), at least selected or each electrical protolayer independently comprising at least 25 wt % sacrificial material and a thermally stable material and having a uniform thickness of less than 25 micrometers. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each protolayer independently exhibiting a complex viscosity of between 10.sup.3 and 10.sup.4 Poise at a shear rate of 100/s when heated to a temperature between its Tg and T.sub.dec.

GLASS LAMINATE, METHOD FOR PRODUCING SAME AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE

To provide a glass laminate of which an increase of the peel strength between a glass substrate and a silicone resin layer is suppressed even after a high temperature heat treatment, and from which the glass substrate can readily be separated. A glass laminate comprising a support substrate, a silicone resin layer and a glass substrate in this order, with a peel strength at the interface between the support substrate and the silicon resin layer higher than the peel strength at the interface between the silicone resin layer and the glass substrate, wherein a silicone resin in the silicone resin layer is a cured product obtained by reacting an alkenyl-group containing organopolysiloxane (A) and a hydrogen polysiloxane (B) having a hydrosilyl group, and the mixing molar ratio of the hydrosilyl groups in the hydrogen polysiloxane (B) to the alkenyl groups in the alkenyl group-containing organopolysiloxane (A) (that is, number of mols of hydrosilyl groups/number of mols of alkenyl groups) is from 0.15/1 to 0.65/1.

INSULATING TAPE
20170244087 · 2017-08-24 · ·

Provided is an insulating tape to be used in a nonaqueous secondary battery, the insulating tape being capable of maintaining its insulating property even under a severe environment, e.g., even when being heated, and being capable of improving the safety of the nonaqueous secondary battery. Specifically, provided is an insulating tape for a nonaqueous battery, including a base material, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material, in which the base material and/or the pressure-sensitive adhesive layer each contain/contains an insulating inorganic filler. Also provided is an insulating tape for a nonaqueous battery, including a base material with an insulating layer, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material with the insulating layer, in which the insulating layer contains an insulating inorganic filler.

Polyolefin microporous membrane

Disclosed is a polyolefin microporous membrane including a multilayer film having two or more layers. In this polyolefin microporous membrane, at least one surface layer has a thickness of not less than 0.2 μm but not more than 5 μm and contains inorganic particles, while at least one layer contains a polyethylene and has an air permeability of not less than 50 second/100 cc but not more than 1000 second/100 cc and a puncture strength of not less than 3.0 N/20 μm.

MULTI-LAYERED POROUS FILM AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY

Provided is a multi-layered porous film which includes a functional layer having a controlled thickness in a length-wise direction thereof and which is suitable as a separator for batteries. The multi-layered porous film includes a base film, and a functional layer containing both an inorganic filler and a binder resin, the functional layer being formed on the base film, wherein a difference between a maximum basis weight and a minimum basis weight of the multi-layered porous film in a length-wise direction thereof is equal to or smaller than 2 grams/m.sup.2, the basis weight being measured every 100 meters interval. The separator fabricated by cutting a film roll comprised of a multi-layered porous film into pieces each having a given length has small lot-based fluctuation in quality, and makes it possible to fabricate a battery having a small fluctuation in quality.