Patent · US Active

Composite core-shell particles

US11335904B2 · kind B2 · utility

4Cited by

4References

31Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Dennis Troegel · Maisach, DE
Stefan Haufe · Neubiberg, DE

Key dates

Filing date	Feb 14, 2017
Grant date	May 17, 2022
Priority date	—
Expiry date	Feb 14, 2037

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 core-shell particles wherein the core is a porous, carbon-based matrix which contains silicon particles enclosed in pores of the matrix; the pores containing the silicon particles have a diameter of ≥60 nm as determined by scanning electron microscopy (SEM); the shell can be obtained by carbonizing one or more carbon precursors selected from among the group comprising tars, pitches, hard carbon, soft carbon and hydrocarbons having 1 to 20 carbon atoms, resulting in a non-porous shell.

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