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US 10,168,285 B2Granted
Production method for separator sheet, production method for separator, separator sheet wound body, and separator sheet production device
AssigneeSumitomo Chemical Company, Limited
InventorsKoji Kashu, Yusuke Kon, Tatsuya Sakamoto, Jian Wang
Life of this patent
Estimating the term…
Abstract
A separator producing method includes the steps of: winding up, around a core (81, 53), a separator (12a, 12b) having a defect (D) detected; and providing a defect code (DC2) including information on a position of the defect (D) in the longitudinal direction of the separator (12a, 12b) on (i) the outermost portion (86, 86b) of the separator (12a, 12b), wound around the core (81, 53), or (ii) the core (81, 53), around which the separator (12a, 12b) is wound.
Claims9
A separator original sheet producing method, comprising the steps of:
- winding up, around a core, a separator original sheet having a defect detected;
- providing a first defect code, including information on a first position of the defect which first position is a physical position in a longitudinal direction of the separator original sheet, on (i) the core, (ii) a side surface of the separator original sheet wound around the core, (iii) an outer layer of the separator original sheet wound around the core, or (iv) a package of a roll including the core and the separator original sheet wound around the core;
- and
- providing a second defect code, including information on a second position of the defect which second position is a physical position in a width direction of the separator original sheet, at each of opposite widthwise ends of the separator original sheet.
1 more element
A separator producing method, comprising the steps of:
- (a) cutting a separator original sheet, having a defect detected, in a longitudinal direction of the separator original sheet into a plurality of separators;
- (b) winding up, around a core, a separator among the plurality of separators which separator has the defect;
- (c) providing a first defect code, including information on a first position of the defect which first position is a physical position in a longitudinal direction of the separator, on (i) the core, (ii) a side surface of the separator wound around the core, (iii) an outer layer of the separator wound around the core, or (iv) a package of a roll including the core and the separator wound around the core;
- and
- (d) providing a second defect code, including information on a second position of the defect which second position is a physical position in a width direction of the separator, at each of opposite widthwise ends of the separator.
2 more elements
A separator original sheet roll, comprising:
- a core;
- a separator original sheet having a defect and wound around the core;
- a first defect code that is provided physically on (i) the core, (ii) a side surface of the separator original sheet wound around the core, (iii) an outer layer of the separator original sheet wound around the core, or (iv) a package of a roll including the core and the separator original sheet wound around the core and that includes information on a first position of the defect which first position is a position in a longitudinal direction of the separator original sheet;
- and
- a second defect code that is provided physically at each of opposite widthwise ends of the separator original sheet and that includes information on a second position of the defect which second position is a position in a width direction of the separator original sheet.
2 more elements
A separator original sheet producing apparatus, comprising:
- a wind-up section configured to wind up, around a core, a separator original sheet having a defect detected;
- a first defect code providing section configured to provide a first defect code, including information on a first position of the defect which first position is a physical position in a longitudinal direction of the separator original sheet, on (i) the core, (ii) a side surface of the separator original sheet wound around the core, (iii) an outer layer of the separator original sheet wound around the core, or (iv) a package of a roll including the core and the separator original sheet;
- and
- a second defect code providing section configured to provide a second defect code, including information on a second position of the defect which second position is a physical position in a width direction of the separator original sheet, at each of opposite widthwise ends of the separator original sheet.
1 more element
Dependencies are inferred from the claim text.