Patent · US Active

Cathodes for aluminum electrolysis cell with expanded graphite lining

US7776190B2 · kind B2 · utility

31Cited by

7References

22Claims

0Family size

Assignee

SGL CARBON SE · DE

Inventors

Frank Hiltmann · Kriftel, DE
Martin Christ · Osterode, DE
Werner Langer · Ludwigsburg, DE
Oswin Öttinger · Meitingen, DE

Key dates

Filing date	Jun 23, 2008
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Jun 23, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/10
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Cathodes for aluminum electrolysis cells are formed of cathode blocks and current collector bars attached to those blocks. The cathode slots receiving the collector bar are lined with expanded graphite lining thus providing longer useful lifetime of such cathodes and increased cell productivity. The expanded graphite provides a good electrical and thermal conductivity especially with its plane layer.

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