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): A; US 5358802
• Application Number: PPN: US 8-041507
• OSTI ID: 6833217
• Country of Publication: United States
• Language: English

Related Subjects

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