SEPARATOR-INTEGRATED ELECTRODE PLATE, ELECTRODE PLATE PAIR, STACKED ELECTRIC POWER STORAGE ELEMENT, AND METHOD OF MANUFACTURING SEPARATOR-INTEGRATED ELECTRODE PLATE
First Claim
Patent Images
1. A separator-integrated electrode plate comprising:
- a current collector plate;
an active material layer formed on the current collector plate; and
a resin separator layer formed on the active material layer,wherein a belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer.
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Abstract
A separator-integrated electrode plate includes a current collector plate; an active material layer formed on the current collector plate; and a resin separator layer formed on the active material layer. A belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer.
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Citations
10 Claims
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1. A separator-integrated electrode plate comprising:
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a current collector plate; an active material layer formed on the current collector plate; and a resin separator layer formed on the active material layer, wherein a belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer. - View Dependent Claims (2, 3, 4, 5)
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6. A method of manufacturing a separator-integrated electrode plate, the separator-integrated electrode plate including:
- a current collector plate;
an active material layer formed on the current collector plate; and
a resin separator layer formed on the active material layer, wherein a belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer, the method comprising;a resin permeation step in which thermal energy is applied to a belt-like uncut permeation region, including a cutting planned portion in the uncut permeation region, of an uncut integrated electrode plate including an uncut current collector plate, an uncut active material layer formed on the uncut current collector plate, and an uncut resin separator layer formed on the uncut active material layer to melt an in-region portion, located in the uncut permeation region, of the uncut resin separator layer, the resin is caused to permeate an in-region active material portion, located in the uncut permeation region, of the uncut active material layer; and a post-permeation cutting step in which the cutting planned portion of the uncut integrated electrode plate is laser-cut such that the resin-permeated portion having the width is formed after laser cutting. - View Dependent Claims (7, 8)
- a current collector plate;
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9. A method of manufacturing a separator-integrated electrode plate, the separator-integrated electrode plate including:
- a current collector plate;
an active material layer formed on the current collector plate; and
a resin separator layer formed on the active material layer, wherein a belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer, the method comprising;a permeation cutting step in which thermal energy is applied to a belt-like uncut permeation region, including a cutting planned portion in the uncut permeation region, of an uncut integrated electrode plate including an uncut current collector plate, an uncut active material layer formed on the uncut current collector plate, and an uncut resin separator layer formed on the uncut active material layer to melt an in-region portion, located in the uncut permeation region, of the uncut resin separator layer, the resin is caused to permeate an in-region active material portion, located in the uncut permeation region, of the uncut active material layer; and
simultaneously, the cutting planned portion of the uncut integrated electrode plate is laser-cut such that the resin-permeated portion having the width is formed after laser cutting.
- a current collector plate;
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10. A method of manufacturing a separator-integrated electrode plate, the separator-integrated electrode plate including:
- a current collector plate;
an active material layer formed on the current collector plate; and
a resin separator layer formed on the active material layer, wherein a belt-like laser-cut end portion along a laser-cut edge that is laser-cut in a thickness direction of the separator-integrated electrode plate and forms part of a peripheral edge of the separator-integrated electrode plate has a resin-permeated portion in which a resin forming the resin separator layer permeates the active material layer over a width that is more than twice a thickness of the resin separator layer, the method comprising;a before-permeation cutting step in which an uncut integrated electrode plate including an uncut current collector plate, an uncut active material layer formed on the uncut current collector plate, and an uncut resin separator layer formed on the uncut active material layer is laser-cut; and a post-cutting permeation step in which thermal energy is applied to the laser-cut end portion to melt the resin forming the resin separator layer, the resin is caused to permeate the active material layer, such that the resin-permeated portion having the width is formed along the laser-cut edge generated by the laser cutting.
- a current collector plate;
Specification