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Title: All-solid electrodes with mixed conductor matrix

Abstract

Alkali metal based electrochemical cells offer a great deal of promise for applications in many areas such as electric vehicles and load leveling purposes in stationary power plants. Lithium is an attractive candidate as the electroactive species in such cells since lithium is very electropositive, abundant and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated at elevated temperatures. The subject invention provides an electrochemical cell in one embodiment of which lithium is the electroactive species. The cell comprises an electrolyte, a positive electrode, and a negative electrode, either or both of which is an all-solid, composite microstructural electrode containing both a reactant phase and a mixed ionic-electronic conducting phase. The cells of the subject invention exhibit improved kinetic features, current and power densities. Repeated charging and discharging of these cells can be accomplished without appreciable loss of capacity.

Inventors:
 [1];  [2]
  1. (Stanford, CA)
  2. (Achterste Kamp, NL)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864915
Patent Number(s):
4436796
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
all-solid; electrodes; mixed; conductor; matrix; alkali; metal; based; electrochemical; cells; offer; deal; promise; applications; electric; vehicles; load; leveling; purposes; stationary; power; plants; lithium; attractive; candidate; electroactive; species; electropositive; abundant; light; weight; type; lithium-based; cell; utilizes; molten; salt; electrolyte; normally; operated; elevated; temperatures; subject; provides; embodiment; comprises; positive; electrode; negative; composite; microstructural; containing; reactant; phase; ionic-electronic; conducting; exhibit; improved; kinetic; features; current; densities; repeated; charging; discharging; accomplished; appreciable; loss; capacity; cell utilizes; load leveling; power densities; exhibit improved; solid electrode; power plants; light weight; cell comprises; electric vehicle; elevated temperatures; positive electrode; electrochemical cells; negative electrode; alkali metal; electrochemical cell; elevated temperature; molten salt; power plant; salt electrolyte; electric vehicles; electrode containing; metal base; active species; lithium-based cell; metal based; /429/

Citation Formats

Huggins, Robert A., and Boukamp, Bernard A. All-solid electrodes with mixed conductor matrix. United States: N. p., 1984. Web.
Huggins, Robert A., & Boukamp, Bernard A. All-solid electrodes with mixed conductor matrix. United States.
Huggins, Robert A., and Boukamp, Bernard A. Sun . "All-solid electrodes with mixed conductor matrix". United States. https://www.osti.gov/servlets/purl/864915.
@article{osti_864915,
title = {All-solid electrodes with mixed conductor matrix},
author = {Huggins, Robert A. and Boukamp, Bernard A.},
abstractNote = {Alkali metal based electrochemical cells offer a great deal of promise for applications in many areas such as electric vehicles and load leveling purposes in stationary power plants. Lithium is an attractive candidate as the electroactive species in such cells since lithium is very electropositive, abundant and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated at elevated temperatures. The subject invention provides an electrochemical cell in one embodiment of which lithium is the electroactive species. The cell comprises an electrolyte, a positive electrode, and a negative electrode, either or both of which is an all-solid, composite microstructural electrode containing both a reactant phase and a mixed ionic-electronic conducting phase. The cells of the subject invention exhibit improved kinetic features, current and power densities. Repeated charging and discharging of these cells can be accomplished without appreciable loss of capacity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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