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US 2025/0167199 A1Published application
Method for manufacturing a bipolar battery
AssigneeLasagna.one Inc.
InventorYuki Katoh
Life of this patent
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Abstract
A method for forming a bipolar battery may apply a cathode layer to a current collector, comprising: providing a cathode mixture; and feeding the cathode mixture through a plurality of cathode calendar rolls. The method may apply an anode layer to the current collector, comprising: providing an anode mixture; and feeding the anode mixture through a plurality of anode calendar rolls. The cathode mixture and the anode mixture are fed into the plurality of cathode calendar rolls and the plurality of anode calendar rolls asymmetrically.
Claims20
A method for forming a bipolar battery, comprising:
- applying a cathode layer to a current collector, comprising:
- providing a cathode mixture;
- and
- feeding the cathode mixture through a plurality of cathode calendar rolls;
- applying an anode layer to the current collector, comprising:
- providing an anode mixture;
- and
- feeding the anode mixture through a plurality of anode calendar rolls;
- wherein the cathode mixture and the anode mixture are fed into the plurality of cathode calendar rolls and the plurality of anode calendar rolls asymmetrically.
6 more elements
A method for forming a bipolar battery, comprising:
- applying a cathode layer to a current collector, comprising:
- providing a cathode mixture;
- and
- feeding the cathode mixture through a plurality of cathode calendar rolls, wherein a cathode calendar roll where the cathode mixture is initially fed being 0 and a cathode calendar roll in contact with the current collector being 2N+1, where N is a positive integer greater than or equal to 0, wherein a radius, rc, of each of the plurality of cathode calendar rolls is equal;
- applying an anode layer to the current collector, comprising:
- providing an anode mixture;
- and
- feeding the anode mixture through an odd number of anode calendar rolls, wherein an anode calendar roll where the anode mixture is initially fed being 0 and an anode calendar roll in contact with the current collector being 2N′+1, where N′ is a positive integer greater than or equal to 0, a radius, ra, of each of the plurality of anode calendar rolls is equal;
- wherein a angular velocity of each of the plurality of cathode calendar rolls and an angular velocity speed of each of the plurality of anode calendar rolls are proportional to a thickness of the cathode layer and a thickness of the anode layer being applied to the current collector.
6 more elements
A method for forming a bipolar battery, comprising:
- applying a cathode layer to a current collector, comprising:
- providing a cathode mixture;
- and
- feeding the cathode mixture through a plurality of cathode calendar rolls, wherein a cathode calendar roll where the cathode mixture is initially fed being 0 and a cathode calendar roll in contact with the current collector being 2N+1, where N is a positive integer greater than or equal to 0, wherein a radius, rc, of each of the plurality of cathode calendar rolls is equal;
- applying an anode layer to the current collector, comprising:
- providing an anode mixture;
- and
- feeding the anode mixture through an odd number of anode calendar rolls, wherein an anode calendar roll where the anode mixture is initially fed being 0 and an anode calendar roll in contact with the current collector being 2N′+1, where N′ is a positive integer greater than or equal to 0, a radius, ra, of each of the plurality of anode calendar rolls is equal;
- wherein an angular velocity of each of the plurality of cathode calendar rolls and an angular velocity of each of the plurality of anode calendar rolls satisfies the equations:
- (
- 0.8
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- wherein wc,N is an angular velocity of a designated cathode calendar roll, N being a positive integer greater than or equal to 0, wa, N′ is an angular velocity of a designated anode calendar roll, N′ being a positive integer greater than or equal to 0, rc is a radius of an individual cathode calendar roll, ra is a radius of an individual anode calendar roll, tc,2N is a gap between adjacent cathode calendar rolls, and ta,2N′ is a gap between adjacent anode calendar rolls;
- applying a first separator layer to the cathode layer and a second separator layer to the anode layer comprising:
- providing a cathode separator mixture;
- providing an anode separator mixture;
- feeding the cathode separator mixture through a first plurality of separator calendar rolls;
- and
- feeding the anode separator mixture through a second plurality of separator calendar rolls;
- wherein the angular velocity of each of the first plurality of separator rolls and the angular velocity of each of the second plurality of separator calendar rolls satisfies the equations:
- (
- 0.8
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- where rsep is a radius of a separator calender roll of the first plurality of separator rolls and rsep′ is a radius of a separator calender roll of the second plurality of separator rolls, respectively;
- wherein wsep,N is an angular velocity of a designated separator calendar roll of the first plurality of separator rolls, N being a positive integer greater than or equal to 0, wsep, N′ is an angular velocity of a designated separator calendar roll of the second plurality of calendar rolls, N′ being a positive integer greater than or equal to 0, rsep is a radius of an individual separator calendar roll of one of the first plurality of separator rolls or the second plurality of separator rolls, tsep,2N is a gap between adjacent separator calendar rolls of the first plurality of separator rolls, and tsep,2N′ is a gap between adjacent separator calendar rolls of the second plurality of calendar rolls.
158 more elements
Dependencies are inferred from the claim text.