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Title: Final Scientific Technical Report for Project Title: High Value Carbon Products from Domestic Coal

Abstract

Domestic coal provides a basis to manufacture solid carbon products whose market value can exceed the fuel and heat value of the coal. A coal byproduct, pitch, exhibits market potential to manufacture carbon-based materials and products with values that far exceed the fuel and heat value of the original coal. The primary program goal was to utilize domestic sourced coal tar pitch (CTP) as a source of graphite to produce lithium-ion (Li-ion) batteries with enhanced performance over todays Li-ion batteries that utilize state-of-the-art graphite in the electrodes. CTP was purified via solvent extraction and/or vacuum distillation to remove insoluble/inorganics/ashes and low boiling one (benzene) and two (naphthalene) member rings. The purified CTP was thermally treated to 350 or 480°C with gas sparging that produced a mesophase. The mesophase was utilized as a binder for pitch base graphite fiber composites to serve as electrodes in pouch cell Li-ion batteries, and separately the mesophase was graphitized to +/- 3000°C. The graphite particulate produced from the pyrolyzed CTP was utilized to produce coin type Li-ion batteries that produced 33 to 87% enhanced mAh/g performance over commercial Li-ion cells utilizing state-of-the-art graphite in the electrodes. The mesophase CTP was also used to produce carbonmore » coatings on nano-silicon which is an additive to graphite electrodes that enhance Li-ion cell performance.« less

Authors:
 [1]
  1. ATS-MER, LLC
Publication Date:
Research Org.:
ATS-MER, LLC, Phoenix, AZ (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1494054
Report Number(s):
DOE-ATS-MER-18857-F
DOE Contract Number:  
SC0018857
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 36 MATERIALS SCIENCE; Coal, Coal Tar Pitch, Mesophase Pitch, Graphite, Lithium-Ion Batteries, Coin Cells, Graphite Coated Silicon

Citation Formats

Withers, James C. Final Scientific Technical Report for Project Title: High Value Carbon Products from Domestic Coal. United States: N. p., 2019. Web.
Withers, James C. Final Scientific Technical Report for Project Title: High Value Carbon Products from Domestic Coal. United States.
Withers, James C. Mon . "Final Scientific Technical Report for Project Title: High Value Carbon Products from Domestic Coal". United States.
@article{osti_1494054,
title = {Final Scientific Technical Report for Project Title: High Value Carbon Products from Domestic Coal},
author = {Withers, James C.},
abstractNote = {Domestic coal provides a basis to manufacture solid carbon products whose market value can exceed the fuel and heat value of the coal. A coal byproduct, pitch, exhibits market potential to manufacture carbon-based materials and products with values that far exceed the fuel and heat value of the original coal. The primary program goal was to utilize domestic sourced coal tar pitch (CTP) as a source of graphite to produce lithium-ion (Li-ion) batteries with enhanced performance over todays Li-ion batteries that utilize state-of-the-art graphite in the electrodes. CTP was purified via solvent extraction and/or vacuum distillation to remove insoluble/inorganics/ashes and low boiling one (benzene) and two (naphthalene) member rings. The purified CTP was thermally treated to 350 or 480°C with gas sparging that produced a mesophase. The mesophase was utilized as a binder for pitch base graphite fiber composites to serve as electrodes in pouch cell Li-ion batteries, and separately the mesophase was graphitized to +/- 3000°C. The graphite particulate produced from the pyrolyzed CTP was utilized to produce coin type Li-ion batteries that produced 33 to 87% enhanced mAh/g performance over commercial Li-ion cells utilizing state-of-the-art graphite in the electrodes. The mesophase CTP was also used to produce carbon coatings on nano-silicon which is an additive to graphite electrodes that enhance Li-ion cell performance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {2}
}

Technical Report:
This technical report may be released as soon as February 11, 2023
Other availability
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