Doping of carbon foams for use in energy storage devices

Patent · Tue Oct 25 00:00:00 EDT 1994

OSTI ID:6833217

Mayer, S T; Pekala, R W; Morrison, R L; Kaschmitter, J L

A polymeric foam precursor, wetted with phosphoric acid, is pyrolyzed in an inert atmosphere to produce an open-cell doped carbon foam, which is utilized as a lithium intercalation anode in a secondary, organic electrolyte battery. Tests were conducted in a cell containing an organic electrolyte and using lithium metal counter and reference electrodes, with the anode located there between. Results after charge and discharge cycling, for a total of 6 cycles, indicated a substantial increase in the energy storage capability of the phosphorus doped carbon foam relative to the undoped carbon foam, when used as a rechargeable lithium ion battery. 3 figs.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5358802; A
• Application Number: PPN: US 8-041507
• OSTI ID: 6833217
• Resource Relation: Patent File Date: 1 Apr 1993
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ANODES
FABRICATION
ELECTRIC BATTERIES
PERFORMANCE TESTING
FOAMS
BATTERY CHARGING
CARBON
DOPED MATERIALS
IMPREGNATION
LITHIUM COMPOUNDS
MATERIALS
PYROLYSIS
VOLTAGE DROP
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
COLLOIDS
DECOMPOSITION
DISPERSIONS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
NONMETALS
TESTING
THERMOCHEMICAL PROCESSES
250900* - Energy Storage- Batteries