Methods and apparatuses for making cathodes for high-temperature, rechargeable batteries

Title: Methods and apparatuses for making cathodes for high-temperature, rechargeable batteries

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 and then cooled to solidify the mixture in the desired cathode shape.

Inventors:: Meinhardt, Kerry D; Sprenkle, Vincent L; Coffey, Gregory W

Issue Date:: 2014-05-20

OSTI Identifier:: 1132513

Assignee:: Battelle Memorial Institute (Richland, WA) PNNL

Patent Number(s):: 8,728,174

Application Number:: 13/069,694

Contract Number:: AC05-76RLO1830

Resource Relation:: Patent File Date: 2011 Mar 23

Research Org:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE

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Other works cited in this record:

Apparatus and method for extruding shear thinning material
patent, May 1994

Morris, Jerry
US Patent Document 5,316,556
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F5316556

Advances in ZEBRA batteries
journal, March 2004

Dustmann, Cord-H
Journal of Power Sources, Vol. 127, Issue 1-2, p. 85-92
DOI: 10.1016/j.jpowsour.2003.09.039

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