Electrode of secondary battery and apparatus for manufacturing electrode of secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorsSUNGJUN SON, Sangduck YOO, Daseul KIM, Youngha JOO
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Abstract
A secondary battery electrode includes a current collector, mixture parts on the current collector, the mixtures parts including a slurry, and the mixture parts being spaced apart and parallel with each other, and uncoated parts on the current collector, the uncoated parts including no slurry, the uncoated parts including an edge uncoated part on an edge of the current collector and a gap uncoated part between the mixture parts, and a width of the edge uncoated part and a width of the gap uncoated part being smaller than a width of each of the mixture parts.
Claims20
A secondary battery electrode, comprising:
- a current collector;
- mixture parts on the current collector, the mixture parts including a slurry, and the mixture parts being spaced apart and parallel with each other;
- and
- uncoated parts on the current collector, the uncoated parts including no slurry, the uncoated parts including an edge uncoated part on an edge of the current collector and a gap uncoated part between the mixture parts, and a width of the edge uncoated part and a width of the gap uncoated part being smaller than a width of each of the mixture parts.
An apparatus for manufacturing a secondary battery electrode, the apparatus comprising:
- a storage configured to store a slurry;
- a slot die coupled to the storage, the slot die being configured to discharge the slurry onto a current collector;
- and
- a slurry pump coupled to the storage and the slot die, the slurry pump being configured to supply the slurry to the slot die from the storage,
- wherein:
- the slot die is configured to discharge the slurry onto the current collector so that the secondary battery electrode includes mixture parts in which the slurry is coated on the current collector and uncoated parts without slurry on the current collector,
- the uncoated parts include an edge uncoated part at an edge of the current collector and a gap uncoated part between the mixture parts,
- the mixture parts are spaced apart parallel with each other, the gap uncoated part being between the mixture parts, and
- a width of the edge uncoated part and a width of the gap uncoated part are smaller than a width of each of the mixture parts.
Dependencies are inferred from the claim text.