PULSE THERMAL PROCESSING OF SOLID STATE LITHIUM ION BATTERY CATHODES
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United States of America Patent
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Jun 26, 2014
app pub date -
Dec 21, 2012
filing date -
Dec 21, 2012
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Abstract
A method of making a cathode for a battery includes the steps of depositing a precursor cathode film having a first crystallinity profile. The precursor cathode film is annealed by irradiating the precursor cathode film with from 1 to 100 photonic pulses having a wavelength of from 200 nm to 1600 nm, a pulse duration of from 0.01 μs and 5000 μs and a pulse frequency of from 1 nHz to 100 Hz. The photonic pulses are continued until the precursor cathode film has recrystallized from the first crystallinity profile to a second crystallinity profile.
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