Patent · US Active

Lithiated silicon/carbon composite materials and method for producing the same

US12057573B2 · kind B2 · utility

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7Claims

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Assignee

ALBEMARLE GERMANY GMBH · DE

Inventors

Ulrich Wietelmann · Friedrichsdorf, DE
Ute Emmel · Frankfurt am Main, DE
Christopher Kurth · Chaska, US
Stefan Scherer · Büttelborn, DE
Thorsten Buhrmester · Darmstadt, DE
Gerd Krämer · Bad Vilbel, DE

Key dates

Filing date	Jan 6, 2023
Grant date	Aug 6, 2024
Priority date	—
Expiry date	Jan 6, 2043

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to composite materials comprising lithiated or partially-lithiated graphite or graphene, and silicon having particles sizes from about 1 μm to about 100 μm, and that have an electrochemical rest potential less than about 2 V measured against Li/Li+, wherein graphitic material is mixed with silicon powder in a molar ratio of 9:1 to 1:9 and with lithium powder to an amount of the lithium in the composite material in the range of about 10 molar % to 100 molar % of the stochiometrically maximally possible lithium absorption, and to methods for production thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.