COMPOSITE SOLID-STATE ELECTROLYTE AND LITHIUM BATTERIES USING THE SAME

• Main Authors: DEPEW, GAVIN, SHIH, DUKE PON, KRAAY, BRUCE, KOSYAKOV, ALEXANDER, TSAI, DAH-SHYANG, MALEKPOUR, SOHEIL, SARBAPALLI, DIPOBRATO, GRANT, DILLON
• Format: Patent
• Language: English
• Published: 25.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The disclosure relates to a composite solid electrolyte (CSE) for a battery in various formats including a freestanding CSE separator, electrode-CSE laminate, current collector-CSE laminate, or CSE-based mixed ionic-electronic conductor (MIEC) electrode. The disclosure also relates to the methods of making composite solid electrolytes and batteries therewith. A CSE is disclosed having at least one polymer; at least one lithium salt; a solvent plasticizer; at least one inorganic additive particle; a substrate; and one or more liquid or solid additives. A method of making a CSE is disclosed as providing, as a liquid slurry, at least one polymer, at least one lithium salt, a solvent plasticizer, at least one inorganic additive particle, and one or more liquid or solid additives and coating a substrate with the liquid slurry.