Method for producing assembly, and assembly

Patent metadata

Field	Value
Publication number	US-10431794-B2
Application number	US-201715417821-A
Country	US
Kind code	B2
Filing date	Jan 27, 2017
Priority date	Jan 29, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

To provide (i) a method for producing an assembly capable of protecting a film from external force during, for example, transport and (ii) such an assembly, a method for producing an assembly includes a step of inserting a pillar-shaped core member through a plurality of separator rolls and a buffer member(s) made of a flexibility material and provided between separator rolls such that the separator rolls and the buffer member(s) are arranged alternately.

First claim

The invention claimed is:

1. A method for producing an assembly including (i) a core member having a pillar shape, (ii) a plurality of rolls each of which includes a core and a film wound around the core and has an axis hole, and (iii) at least one first buffer member made of a flexible material and having an axis hole, the method comprising the steps of:
inserting the core member through the respective axis holes of the rolls and the axis hole of the at least one first buffer member for an alternate arrangement of the rolls and the at least one first buffer member;
fitting opposite ends of the core member with respective protectors configured to protect the rolls and the at least one first buffer member, the protectors being inserted into the respective opposite ends of the core member in such a manner as to each press a member adjacent to the protector; and
inserting the core member through respective axis holes of second buffer members, the second buffer members being each made of a flexible material, such that the protectors are each separated from an adjacent one of the rolls by one of the second buffer members.

2. The method according to claim 1 ,
wherein
the flexible material is a porous material.

3. The method according to claim 1 ,
wherein
the at least one first buffer member has an outer diameter larger than an outer diameter of each of the rolls.

4. The method according to claim 1 , further comprising the steps of:
preparing the film by cutting an original sheet for a product having a width smaller than a width of the core; and
preparing each of the rolls by winding the film around the core such that the core has opposite end surfaces protruding from respective opposite end surfaces of the film.

5. The method according to claim 1 ,
wherein
the flexible material of the second buffer members has a strength higher than a strength of the flexible material of the at least one first buffer member.

6. A method for producing an assembly including (i) a core member having a pillar shape, (ii) a plurality of rolls each of which includes a core and a film wound around the core and has an axis hole, and (iii) at least one first buffer member made of a flexible material and having an axis hole, the method comprising the step of:
inserting the core member through the respective axis holes of the rolls and the axis hole of the at least one first buffer member for an alternate arrangement of the rolls and the at least one first buffer member,
fitting opposite ends of the core member with respective protectors configured to protect the rolls and the at least one first buffer member;
wherein
the protectors each include a bulge at a central portion thereof, the bulge sticking out from a part surrounding the bulge.

7. A method for producing an assembly including (i) a core member having a pillar shape, (ii) a plurality of rolls each of which includes a core and a film wound around the core and has an axis hole, and (iii) at least one first buffer member made of a flexible material and having an axis hole, the method comprising the step of:
inserting the core member through the respective axis holes of the rolls and the axis hole of the at least one first buffer member for an alternate arrangement of the rolls and the at least one first buffer member;
fitting opposite ends of the core member with respective protectors configured to protect the rolls and the at least one first buffer member,
inserting the core member through respective axis holes of second buffer members, the second buffer members being each made of a flexible material, such that the protectors are each separated from an adjacent one of the rolls by one of the second buffer members;
wherein
the second buffer members are each thicker than the at least one first buffer member.

8. A method for producing an assembly including (i) a core member having a pillar shape, (ii) a plurality of rolls each of which includes a core and a film wound around the core and has an axis hole, and (iii) at least one first buffer member made of a flexible material and having an axis hole, the method comprising the step of:
inserting the core member through the respective axis holes of the rolls and the axis hole of the at least one first buffer member for an alternate arrangement of the rolls and the at least one first buffer member,
fitting opposite ends of the core member with respective protectors configured to protect the rolls and the at least one first buffer member, and
fastening, with a belt-shaped member, the protectors, with which the respective opposite ends of the core member are fitted, and all members through which the core member is inserted.

9. The method according to claim 8 ,
wherein
the belt-shaped member is a stretch film.

Assignees

• Sumitomo Chemical Co

Inventors

• Tsukuda Yosuke
• Yashiki Daizaburo

Classifications

• B65H19/2284 Primary

  Simultaneous winding at several stations, e.g. slitter-rewinders · CPC title

• H01M10/0587 Primary

  of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• B65H2301/41485

  winding on one single shaft or support · CPC title

• B26D2007/0075

  so-called "winder slitters" · CPC title