FREE-STANDING ELECTRODE FILM CONTAINING RECYCLED MATERIALS
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United States of America Patent
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Issued Date -
Aug 1, 2024
app pub date -
Jan 30, 2023
filing date -
Jan 30, 2023
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Abstract
A method of manufacturing a free-standing electrode film for an energy storage device includes preparing a first mixture including at least one electrode active material and at least one fibrillizable binder, the first mixture having total solid contents greater than 95% by weight, fibrillizing the at least one fibrillizable binder in the first mixture by subjecting the first mixture to a shear force, pressing the first mixture into a first free-standing electrode film, shredding at least a portion of the first free-standing electrode film, preparing a second mixture including the shredded at least a portion of the first free-standing electrode film, subjecting the second mixture to a shear force, and pressing the second mixture into a second free-standing electrode film. The first mixture may include at least a portion of a previously manufactured free-standing electrode film.
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