DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrochemical thermodynamic measurement system

Abstract

The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.

Inventors:
 [1];  [2];  [3]
  1. Meylan, FR
  2. Los Angeles, CA
  3. Pasadena, CA
Issue Date:
Research Org.:
Arizona State Univ., Tempe, AZ (United States); California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988680
Patent Number(s):
7595611
Application Number:
11/462,290
Assignee:
California Institute of Technology (Pasadena, CA); Cantre National de le Recherche Scientifique (Paris, FR)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
FG03-00ER15035; FG02-03ER15425
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Reynier, Yvan, Yazami, Rachid, and Fultz, Brent T. Electrochemical thermodynamic measurement system. United States: N. p., 2009. Web.
Reynier, Yvan, Yazami, Rachid, & Fultz, Brent T. Electrochemical thermodynamic measurement system. United States.
Reynier, Yvan, Yazami, Rachid, and Fultz, Brent T. Tue . "Electrochemical thermodynamic measurement system". United States. https://www.osti.gov/servlets/purl/988680.
@article{osti_988680,
title = {Electrochemical thermodynamic measurement system},
author = {Reynier, Yvan and Yazami, Rachid and Fultz, Brent T},
abstractNote = {The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 29 00:00:00 EDT 2009},
month = {Tue Sep 29 00:00:00 EDT 2009}
}

Works referenced in this record:

Thermodynamics and crystal structure anomalies in lithium-intercalated graphite
journal, February 2006


Neutron scattering studies of disordered carbon anode materials
journal, August 2001


The entropy and enthalpy of lithium intercalation into graphite
journal, June 2003


Entropy measurements on Li x TiS 2
journal, July 1983


Lithium Insertion in Disordered Carbon−Hydrogen Alloys:  Intercalation vs Covalent Binding
journal, January 1996


The first in situ 7Li NMR study of the reversible lithium insertion mechanism in disorganised carbons
journal, March 2004


Entropy Changes Due to Structural Transformation in the Graphite Anode and Phase Change of the LiCoO[sub 2] Cathode
journal, January 2000


Thermodynamics of Lithium Intercalation into Graphites and Disordered Carbons
journal, January 2004


Evolution of lithiation thermodynamics with the graphitization of carbons
journal, March 2007


Charge-Discharge Characteristics of the Mesocarbon Miocrobeads Heat-Treated at Different Temperatures
journal, January 1995


Graphitization studies of anthracites by high resolution electron microscopy
journal, January 1975


Entropy of Li intercalation in Li x CoO 2
journal, November 2004


Lithium Storage Mechanism of Disordered Mesophase Carbon Fibers Studied by [sup 7]Li-Nuclear Magnetic Resonance
journal, January 2002


The Mechanisms of Lithium and Sodium Insertion in Carbon Materials
journal, January 2001


Raman Spectrum of Graphite
journal, August 1970


Effect of sintering temperature on the characteristics of carbons based on mesocarbon microbeads
journal, January 1997


“Diamond-like” 3-fold coordinated amorphous carbon
journal, January 1980


Lithium doping/undoping in disordered coke carbons
journal, August 1995


Electrochemical-Calorimetric Studies of Lithium-Ion Cells
journal, January 1998