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

Abstract

A method of producing carbon materials for use as electrodes in rechargeable batteries. Electrodes prepared from these carbon materials exhibit intercalation efficiencies of .apprxeq.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.

Inventors:
 [1];  [2];  [3];  [1];  [4]
  1. Alburquerque, NM
  2. Livermore, CA
  3. Fremont, CA
  4. Dayton, OH
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
872194
Patent Number(s):
5882621
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; preparation; carbon; materials; electrodes; rechargeable; batteries; producing; prepared; exhibit; intercalation; efficiencies; apprxeq; 80; lithium; irreversible; loss; cycle; life; capable; sustaining; rates; discharge; cheap; easy; manufacture; comprises; novel; two-step; stabilization; process; polymeric; precursor; stabilized; heating; inert; atmosphere; subsequently; air; material; agitated; reduce; particle; fusion; promote; mass; transfer; oxygen; water; vapor; converted; synthetic; suitable; fabricating; temperature; flowing; rechargeable batteries; carbon materials; cycle life; reduce particle; method comprises; water vapor; inert atmosphere; mass transfer; precursor material; carbon material; precursor materials; subsequently heating; method comprise; flowing inert; producing carbon; synthetic carbon; /423/264/429/

Citation Formats

Doddapaneni, Narayan, Wang, James C. F., Crocker, Robert W, Ingersoll, David, and Firsich, David W. Method of preparation of carbon materials for use as electrodes in rechargeable batteries. United States: N. p., 1999. Web.
Doddapaneni, Narayan, Wang, James C. F., Crocker, Robert W, Ingersoll, David, & Firsich, David W. Method of preparation of carbon materials for use as electrodes in rechargeable batteries. United States.
Doddapaneni, Narayan, Wang, James C. F., Crocker, Robert W, Ingersoll, David, and Firsich, David W. Fri . "Method of preparation of carbon materials for use as electrodes in rechargeable batteries". United States. https://www.osti.gov/servlets/purl/872194.
@article{osti_872194,
title = {Method of preparation of carbon materials for use as electrodes in rechargeable batteries},
author = {Doddapaneni, Narayan and Wang, James C. F. and Crocker, Robert W and Ingersoll, David and Firsich, David W},
abstractNote = {A method of producing carbon materials for use as electrodes in rechargeable batteries. Electrodes prepared from these carbon materials exhibit intercalation efficiencies of .apprxeq.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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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