Method and apparatus for producing battery separator roll

Patent metadata

Field	Value
Publication number	US-2016308183-A1
Application number	US-201514780681-A
Country	US
Kind code	A1
Filing date	Feb 9, 2015
Priority date	Oct 10, 2014
Publication date	Oct 20, 2016
Grant date	—

Abstract

The present invention provides a long separator roll. A method according to the present invention for producing a battery separator roll includes a connecting step of connecting two or more separators ( 12 b and 12 c ) to each other along a lengthwise direction so that the battery separator roll is produced.

First claim

1 .- 26 . (canceled)

27 . A method for producing a battery separator roll, comprising:
a first slitting step of slitting one or more battery separators into two or more battery separators having a prescribed first width; a connecting step of connecting the two or more battery separators obtained by slitting to each other along a lengthwise direction; and a second slitting step of slitting a sheet of the two or more battery separators having been connected to each other, into a slit battery separator having a second prescribed width, so that the two or more battery separators are aligned in a transverse direction.

28 . The method as set forth in claim 27 , further comprising:
a cutting step of cutting off a defect contained in a battery separator, by cutting the battery separator in a transverse direction, in the cutting step, the battery separator being cut into two or more cut battery separators, and in the connecting step, the two or more cut battery separators produced in the cutting step being connected to each other along the lengthwise direction.

29 . The method as set forth in claim 27 , wherein:
in the connecting step, the two or more battery separators each having a length less than a prescribed length are connected to each other along the lengthwise direction, so that the battery separator roll having the prescribed length is produced.

30 . The method as set forth in claim 27 , wherein:
the two or more battery separators have lengths different from each other in the lengthwise direction, respectively.

31 . A method for producing a battery separator roll, comprising:
a storing step of storing three or more stock battery separators each having a length less than a prescribed length; a selecting step of selecting a combination of stock battery separators from combinations of stock battery separators among the three or more stock battery separators, the combination of the stock battery separators, in a case where the stock battery separators in the combination are connected to each other, having a length equal to or more than the prescribed length and closer to the prescribed length, as compared to other combinations of stock battery separators among the combinations of stock battery separators, the other combinations of stock battery separators each having a length equal to or more than the prescribed length in a case where the stock battery separators in each of the other combinations are connected to each other; and a connecting step of connecting the stock battery separators in the combination selected to each other along a lengthwise direction.

32 . A method for producing a battery separator roll, comprising:
a storing step of storing three or more stock battery separators in association with lot numbers, the three or more stock battery separators each having a length less than a prescribed length, the lot numbers being given to the three or more stock battery separators in order of production or storage, respectively; a selecting step of selecting a combination of stock battery separators from combinations of stock battery separators among the three or more stock battery separators, the combination of the stock battery separators, in a case where the stock battery separators in the combination are connected to each other, having a length equal to or more than the prescribed length, the stock battery separators in the combination having lot numbers closer to each other as compared to stock battery separators in each of other combinations among the combinations of stock battery separators, the other combinations of stock battery separators each having a length equal to or more than the prescribed length in a case where the stock battery separators in each of the other combinations are connected to each other; and a connecting step of connecting the stock battery separators in the combination selected to each other along a lengthwise direction.

33 . The method as set forth in claim 27 , wherein:
in the connecting step, the two or more battery separators are connected to each other along the lengthwise direction with an adhesive tape.

34 . An apparatus for producing a battery separator roll, comprising:
a stock section for storing stock battery separators each having a length less than a prescribed length; a selecting section for selecting a combination of stock battery separators from combinations of stock battery separators among the stock battery separators stored, the combination of the stock battery separators, in a case where the stock battery separators in the combination are connected to each other along a lengthwise direction, having a length equal to or more than the prescribed length and closer to the prescribed length as compared to other combinations of stock battery separators among the combinations of stock battery separators, the other combinations of stock battery separators each having a length equal to or more than the prescribed length in a case where the stock battery separators in each of the other combinations are connected to each other; and a presentation section for presenting, to a user, the combination of the stock battery separators selected.

35 . An apparatus for producing a battery separator roll, comprising:
a stock section for storing stock battery separators in association with lot numbers, the stock battery separators each having a length less than a prescribed length, the lot numbers being given to the three or more stock battery separators in order of production or storage, respectively; a selecting section for selecting a combination of stock battery separators from combinations of stock battery separators among the stock battery separators stored, the combination of the stock battery separators, in a case where the stock battery separators in the combination are connected to each other along a lengthwise direction, having a length equal to or more than the prescribed length, the stock battery separators in the combination having lot numbers closer to each other as compared to stock battery separators in each of other combinations among the combinations of stock battery separators, the other combinations of stock battery separators each having a length equal to or more than the prescribed length in a case where the stock battery separators in each of the other combinations are connected to each other; and a presentation section for presenting, to a user, the combination of the stock battery separators selected.

Assignees

• Sumitomo Chemical Co

Inventors

• Matsuo Takahiro
• Yoneyama Satoshi

Classifications

• Y10T156/1075

  of plural laminae from single stock and assembling to each other or to additional lamina · CPC title

• B65H2301/4182

  Core or mandrel insertion, e.g. means for loading core or mandrel in winding position · CPC title

• B65H16/021

  Multiple web roll supports · CPC title

• B65H2301/419

  from or to storage, i.e. the storage integrating winding or unwinding means · CPC title

• B32B37/02

  characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations · CPC title