Electrochemical cell
Abstract
An electrochemical cell having a bimodal positive electrode, a negative electrode of an alkali metal, and a compatible electrolyte including an alkali metal salt molten at the cell operating temperature. The positive electrode has an electrochemically active layer of at least one transition metal chloride at least partially present as a charging product, and additives of bromide and/or iodide and sulfur in the positive electrode or the electrolyte. Electrode volumetric capacity is in excess of 400 Ah/cm.sup.3 ; the cell can be 90% recharged in three hours and can operate at temperatures below 160.degree. C. There is also disclosed a method of reducing the operating temperature and improving the overall volumetric capacity of an electrochemical cell and for producing a positive electrode having a BET area greater than 6.times.10.sup.4 cm.sup.2 /g of Ni.
- Inventors:
-
- Downers Grove, IL
- Naperville, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 869143
- Patent Number(s):
- 5283135
- Assignee:
- University of Chicago (Chicago, IL)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- electrochemical; cell; bimodal; positive; electrode; negative; alkali; metal; compatible; electrolyte; including; salt; molten; operating; temperature; electrochemically; active; layer; transition; chloride; partially; charging; product; additives; bromide; iodide; sulfur; volumetric; capacity; excess; 400; ah; cm; 90; recharged; hours; operate; temperatures; below; 160; degree; disclosed; method; reducing; improving; overall; producing; times; 10; temperatures below; metal chloride; positive electrode; negative electrode; alkali metal; electrochemical cell; transition metal; metal salt; operating temperature; active layer; electrolyte including; electrochemically active; cell operating; salt molten; chemically active; compatible electrolyte; bimodal positive; /429/
Citation Formats
Redey, Laszlo I, Vissers, Donald R, and Prakash, Jai. Electrochemical cell. United States: N. p., 1994.
Web.
Redey, Laszlo I, Vissers, Donald R, & Prakash, Jai. Electrochemical cell. United States.
Redey, Laszlo I, Vissers, Donald R, and Prakash, Jai. Sat .
"Electrochemical cell". United States. https://www.osti.gov/servlets/purl/869143.
@article{osti_869143,
title = {Electrochemical cell},
author = {Redey, Laszlo I and Vissers, Donald R and Prakash, Jai},
abstractNote = {An electrochemical cell having a bimodal positive electrode, a negative electrode of an alkali metal, and a compatible electrolyte including an alkali metal salt molten at the cell operating temperature. The positive electrode has an electrochemically active layer of at least one transition metal chloride at least partially present as a charging product, and additives of bromide and/or iodide and sulfur in the positive electrode or the electrolyte. Electrode volumetric capacity is in excess of 400 Ah/cm.sup.3 ; the cell can be 90% recharged in three hours and can operate at temperatures below 160.degree. C. There is also disclosed a method of reducing the operating temperature and improving the overall volumetric capacity of an electrochemical cell and for producing a positive electrode having a BET area greater than 6.times.10.sup.4 cm.sup.2 /g of Ni.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}