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Title: Chemically modified graphite for electrochemical cells

Patent ·
OSTI ID:871569
 [1];  [2]
  1. Medina, OH
  2. Strongsville, OH
+ Show Author Affiliations

This invention relates to chemically modified graphite particles: (a) that are useful in alkali metal-containing electrode of a electrochemical cell comprising: (i) the electrode, (ii) a non-aqueous electrolytic solution comprising an organic aprotic solvent which solvent tends to decompose when the electrochemical cell is in use, and an electrically conductive salt of an alkali metal, and (iii) a counterelectrode; and (b) that are chemically modified with fluorine, chlorine, iodine or phosphorus to reduce such decomposition. This invention also relates to electrodes comprising such chemically modified graphite and a binder and to electrochemical cells containing such electrodes.

Research Organization:
US ADVANCED BATTERY CONSORTIUM
DOE Contract Number:
FC02-91CE50336
Assignee:
Ucar Carbon Technology Corporation ()
Patent Number(s):
US 5756062
OSTI ID:
871569
Country of Publication:
United States
Language:
English

References (11)

The Study of Electrolyte Solutions Based on Ethylene and Diethyl Carbonates for Rechargeable Li Batteries journal January 1995
Reactivity of Lithium Intercalated into Petroleum Coke in Carbonate Electrolytes journal February 1996
Charge‐Discharge Characteristics of Mesophase‐Pitch‐Based Carbon Fibers for Lithium Cells journal February 1993
The dependence of the performance of Li-C intercalation anodes for Li-ion secondary batteries on the electrolyte solution composition journal December 1994
Mechanism Leading to Irreversible Capacity Loss in Li Ion Rechargeable Batteries journal January 1995
Effects of Crown Ether Addition to Organic Electrolytes on the Cycling Behavior of the TiS[sub 2] Electrode journal January 1987
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
Filming mechanism of lithium-carbon anodes in organic and inorganic electrolytes journal April 1995
The Li1+xMn2O4/C rocking-chair system: a review journal June 1993
The Correlation Between the Surface Chemistry and the Performance of Li-Carbon Intercalation Anodes for Rechargeable ‘Rocking-Chair’ Type Batteries journal January 1994

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Related Subjects

chemically
modified
graphite
electrochemical
cells
relates
particles
useful
alkali
metal-containing
electrode
cell
comprising
ii
non-aqueous
electrolytic
solution
organic
aprotic
solvent
tends
decompose
electrically
conductive
salt
metal
iii
counterelectrode
fluorine
chlorine
iodine
phosphorus
reduce
decomposition
electrodes
binder
containing
aprotic solvent
electrolytic solution
alkali metal-containing
electrochemical cells
alkali metal
electrochemical cell
electrically conductive
solution comprising
cell comprising
chemically modified
cells containing
modified graphite
aqueous electrolytic
non-aqueous electrolytic
organic aprotic
graphite particles
conductive salt
cells contain
electrodes comprising
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