Neal I Phillips

US Patent:

6555271, Apr 29, 2003

Filed:

Jun 20, 2000

Appl. No.:

09/597072

Inventors:

Ronald Alfred Greinke - Medina OH
Daniel Witold Krassowski - Columbia Station OH
Neal David Phillips - Redford MI

Assignee:

Graftech Inc. - Wilmington DE

International Classification:

H01M 438

US Classification:

4292314, 4292319, 429215

Abstract:

An anode for a lithium-ion battery is presented as well as a process for producing an anode for a lithium-ion battery. The anode is formed from a generally continuous sheet of particles of exfoliated graphite having a thickness of no more than about 350 microns, itself or in a laminate with a metallic substrate. The process involves laminating particles of exfoliated graphite to a metallic substrate, such that the particles of exfoliated graphite form a generally continuous sheet of graphite having a thickness of no more than about 350 microns. The inventive anode reduces or eliminates capacity fading due to contact loss and has superior permeability to lithium.