Chemically modified graphite for electrochemical cells

Patent · Tue May 26 00:00:00 EDT 1998

OSTI ID:645943

Greinke, R A; Lewis, I C

This invention relates to chemically modified graphite particles: (a) that are useful in alkali metal-containing electrode of a electrochemical cell comprising: (1) the electrode, (2) a non-aqueous electrolytic solution comprising an organic aprotic solvent which solvent tends to decompose when the electrochemical cell is in use, and an electrically conductive salt of an alkali metal, and (3) a counter electrode; and (b) that are chemically modified with fluorine, chlorine, iodine or phosphorus to reduce such decomposition. This invention also relates to electrodes comprising such chemically modified graphite and a binder and to electrochemical cells containing such electrodes. 3 figs.

• Research Organization: US Advanced Battery Consortium
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC02-91CE50336
• Assignee: Ucar Carbon Technology Corp., Parma, OH (United States)
• Patent Number(s): US 5,756,062/A/
• Application Number: PAN: 8-654,660
• OSTI ID: 645943
• Resource Relation: Other Information: PBD: 26 May 1998
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ELECTROCHEMICAL CELLS
GRAPHITE
ADDITIVES
ELECTRODES
ORGANIC SOLVENTS
ELECTROLYTES
DECOMPOSITION
MITIGATION
DESIGN