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Heteroatom incorporated coke for electrochemical cell electrode

Patent ·
OSTI ID:871003
 [1];  [2]
  1. Strongsville, OH
  2. Medina, OH
+ Show Author Affiliations

This invention relates to an electrode for a coke/alkali metal electrochemical cell comprising: (a) calcined coke particles: (i) that contain at least 0.5 weight percent of nitrogen heteroatoms and at least 1.0 weight percent sulfur heteroatoms, and (ii) that have an average particle size from 2 microns to 40 microns with essentially no particles being greater than 50 microns. (b) a binder This invention also relates to a coke/alkali metal electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrically conductive salt, and (c) a counterelectrode.

Research Organization:
United States Advanced Battery Consortium, Dearborn, MI (US)
DOE Contract Number:
FC02-91CE50336
Assignee:
UCAR Carbon Technology Corporation (Danbury, CT)
Patent Number(s):
US 5639576
OSTI ID:
871003
Country of Publication:
United States
Language:
English

References (9)

The dependence of the performance of Li-C intercalation anodes for Li-ion secondary batteries on the electrolyte solution composition journal December 1994
Reactivity of Lithium Intercalated into Petroleum Coke in Carbonate Electrolytes journal February 1996
Li Metal-Free Rechargeable LiMn[sub 2]O[sub 4]∕Carbon Cells: Their Understanding and Optimization journal January 1992
Behavior of Nitrogen‐Substituted Carbon  (  N  z  C 1 − z  )  in Li / Li (  N  z  C 1 − z  ) 6 Cells journal April 1994
Anodic oxidation of propylene carbonate and ethylene carbonate on graphite electrodes journal April 1995
Heat Transfer Phenomena in Lithium/Polymer-Electrolyte Batteries for Electric Vehicle Application journal January 1993
Historical development of secondary lithium batteries journal August 1994
Electrochemical and Structural Studies of Petroleum Coke in Carbonate‐Based Electrolytes journal July 1995
Electrodic characteristics of various carbon materials for lithium rechargeable batteries journal July 1995

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Related Subjects

/429/
40
50
alkali
alkali metal
aprotic
aprotic solvent
aqueous electrolytic
average
average particle
binder
calcined
calcined coke
cell
cell comprising
cell electrode
coke
comprising
conductive
conductive salt
contain
counterelectrode
described
electrically
electrically conductive
electrochemical
electrochemical cell
electrode
electrolytic
electrolytic solution
essentially
heteroatom
heteroatoms
ii
incorporated
metal
microns
nitrogen
non-aqueous
non-aqueous electrolytic
organic
organic aprotic
particle
particle size
particles
percent
relates
salt
size
solution
solution comprising
solvent
sulfur
weight
weight percent