Method of preparation of carbon materials for use as electrodes in rechargeable batteries
A method is described for producing carbon materials for use as electrodes in rechargeable batteries. Electrodes prepared from these carbon materials exhibit intercalation efficiencies of {approx_equal} 80% for lithium, low irreversible loss of lithium, long cycle life, are capable of sustaining a high rates of discharge and are cheap and easy to manufacture. The method comprises a novel two-step stabilization process in which polymeric precursor materials are stabilized by first heating in an inert atmosphere and subsequently heating in air. During the stabilization process, the polymeric precursor material can be agitated to reduce particle fusion and promote mass transfer of oxygen and water vapor. The stabilized, polymeric precursor materials can then be converted to a synthetic carbon, suitable for fabricating electrodes for use in rechargeable batteries, by heating to a high temperature in a flowing inert atmosphere. 4 figs.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corp., Albuquerque, NM (United States)
- Patent Number(s):
- US 5,882,621/A/
- Application Number:
- PAN: 8-853,971
- OSTI ID:
- 335450
- Resource Relation:
- Other Information: PBD: 16 Mar 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermodynamics and kinetics of lithium intercalation into Nb{sub 2}O{sub 5} electrodes for a 2 V rechargeable lithium battery
Rechargeable lithiated thin film intercalation electrode battery