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Title: Method of preparation of carbon materials for use as electrodes in rechargeable batteries

Abstract

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.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
335450
Patent Number(s):
5882621
Application Number:
PAN: 8-853,971
Assignee:
Sandia Corp., Albuquerque, NM (United States)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 16 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; METAL-NONMETAL BATTERIES; ELECTRODES; FABRICATION; CARBON; LITHIUM; POLYMERS; PRECURSOR; SYNTHETIC MATERIALS

Citation Formats

Doddapaneni, N, Wang, J C.F., Crocker, R W, Ingersoll, D, and Firsich, D W. Method of preparation of carbon materials for use as electrodes in rechargeable batteries. United States: N. p., 1999. Web.
Doddapaneni, N, Wang, J C.F., Crocker, R W, Ingersoll, D, & Firsich, D W. Method of preparation of carbon materials for use as electrodes in rechargeable batteries. United States.
Doddapaneni, N, Wang, J C.F., Crocker, R W, Ingersoll, D, and Firsich, D W. Tue . "Method of preparation of carbon materials for use as electrodes in rechargeable batteries". United States.
@article{osti_335450,
title = {Method of preparation of carbon materials for use as electrodes in rechargeable batteries},
author = {Doddapaneni, N and Wang, J C.F. and Crocker, R W and Ingersoll, D and Firsich, D W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {3}
}