skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Apparatuses for making cathodes for high-temperature, rechargeable batteries

Abstract

The approaches and apparatuses for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.

Inventors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1324458
Patent Number(s):
9,444,091
Application Number:
14/156,135
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jan 15
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Meinhardt, Kerry D., Sprenkle, Vincent L., and Coffey, Gregory W. Apparatuses for making cathodes for high-temperature, rechargeable batteries. United States: N. p., 2016. Web.
Meinhardt, Kerry D., Sprenkle, Vincent L., & Coffey, Gregory W. Apparatuses for making cathodes for high-temperature, rechargeable batteries. United States.
Meinhardt, Kerry D., Sprenkle, Vincent L., and Coffey, Gregory W. 2016. "Apparatuses for making cathodes for high-temperature, rechargeable batteries". United States. doi:. https://www.osti.gov/servlets/purl/1324458.
@article{osti_1324458,
title = {Apparatuses for making cathodes for high-temperature, rechargeable batteries},
author = {Meinhardt, Kerry D. and Sprenkle, Vincent L. and Coffey, Gregory W.},
abstractNote = {The approaches and apparatuses for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 9
}

Patent:

Save / Share:
  • The approaches for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape andmore » then cooled to solidify the mixture in the desired cathode shape.« less
  • This invention relates to low-cost, electroactive-polymer incorporated fine-fiber composite membranes for use as overcharge and/or overdischarge protection separators in non-aqueous electrochemical cells and the methods for making such membranes.
  • The present invention relates to the manufacture of thin film solid state electrochemical devices using composite cathodes comprising a redox polymer capable of undergoing oxidation and reduction, a polymer solid electrolyte and conducting carbon. The polymeric cathode material is formed as a composite of radiation crosslinked polymer electrolytes and radiation crosslinked redox polymers based on polysiloxane backbones with attached organosulfur side groups capable of forming sulfur-sulfur bonds during electrochemical oxidation.
  • The present invention relates to the manufacture of thin film solid state electrochemical devices using composite cathodes comprising a redox polymer capable of undergoing oxidation and reduction, a polymer solid electrolyte and conducting carbon. The polymeric cathode material is formed as a composite of radiation crosslinked polymer electrolytes and radiation crosslinked redox polymers based on polysiloxane backbones with attached organosulfur side groups capable of forming sulfur-sulfur bonds during electrochemical oxidation.
  • An electrolyte for use in electrochemical cells is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg.sup.+2. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.