Separator roll, method for producing separator roll, and label checking method

Patent metadata

Field	Value
Publication number	US-10418665-B2
Application number	US-201715690771-A
Country	US
Kind code	B2
Filing date	Aug 30, 2017
Priority date	Aug 31, 2016
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A separator roll in accordance with an embodiment of the present invention includes a core, a heat-resistant separator wound around the core and in contact with an outer peripheral surface thereof, and a multilayer label attached to an outer layer surface of the heat-resistant separator, the multilayer label including a first film base and a second film base detachable from the first film base.

First claim

The invention claimed is:

1. A separator roll, comprising:
a separator core;
a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core; and
a multilayer label attached to an outer layer surface of the nonaqueous electrolyte secondary battery separator, the multilayer label including a plurality of film bases disposed on top of each other,
the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.

2. The separator roll according to claim 1 ,
wherein:
the plurality of film bases include (i) a first film base to be bonded to the outer layer surface and (ii) a second film base disposed detachably on the first film base and showing information on the nonaqueous electrolyte secondary battery separator; and
a front surface of the first film base is partially exposed, the front surface being on a side of the first film base on which side the second film base is present.

3. The separator roll according to claim 2 ,
wherein
the multilayer label has an end at which a residue-removed portion is present, the residue-removed portion being a portion at which the front surface of the first film base is partially exposed.

4. The separator roll according to claim 2 ,
wherein
the first film base has a color different from a color of the second film base.

5. The separator roll according to claim 2 ,
wherein
the nonaqueous electrolyte secondary battery separator has a color different from a color of the first film base.

6. The separator roll according to claim 1 ,
wherein
the multilayer label is attached so as to extend across a longitudinal end of the nonaqueous electrolyte secondary battery separator which longitudinal end is at the outer layer surface.

7. The separator roll according to claim 1 , further comprising:
a fastening sticker configured to fasten a longitudinal end of the nonaqueous electrolyte secondary battery separator which longitudinal end is at the outer layer surface.

8. A method for producing a separator roll including a separator core and a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core,
the method comprising
attaching a multilayer label to an outer layer surface of the nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with the outer peripheral surface, the multilayer label including a plurality of film bases disposed on top of each other,
the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.

9. A method for checking a label attached to a separator roll including a separator core and a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core,
the method comprising
checking whether a multilayer label is attached to an outer layer surface of the nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with the outer peripheral surface, the multilayer label including a plurality of film bases disposed on top of each other,
the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.

Assignees

• Sumitomo Chemical Co

Inventors

• Sakai Akio
• Minemoto Yasutoshi
• Kon Yusuke

Classifications

• B65H75/02

  Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans {, mandrels or chucks} (packaging aspects B65D85/67) · 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

• G01N21/29

  using visual detection (G01N21/31 takes precedence) · CPC title

• G01N21/27

  using photo-electric detection (G01N21/31 takes precedence){; circuits for computing concentration (logarithmic circuits G06G7/24; photometric circuits in general G01J)} · CPC title

• G09F3/00

  Labels, tag tickets, or similar identification or indication means (medals or badges A44C3/00; making labels B31D1/02; sheets temporarily attached together B42F; labelling B65C; labels on record carriers G11B23/38, G11B23/40); Seals; Postage or like stamps · CPC title