Pre-lithiation of electrode materials in a semi-solid electrode

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United States of America Patent

PATENT NO 11804595
APP PUB NO 20200106094A1
SERIAL NO

16654784

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Abstract

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Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.

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Patent Owner(s)

  • 24M TECHNOLOGIES, INC.; KYOCERA CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duduta, Mihai Somerville, US 42 3453
Fukushima, Takaaki Okayama, JP 26 753
Mishima, Hiromitsu Kirishima, JP 8 284
Ota, Naoki Lexington, US 111 2688
Tan, Taison Pasadena, US 50 2546
Yu, Hiuling Zoe Quincy, US 7 463

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