Lithium oxyhalide electrochemical cell design for high-rate discharge

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United States of America Patent

PATENT NO 11923511
APP PUB NO 20210013550A1
SERIAL NO

16925755

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Abstract

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A novel wound electrode assembly for a lithium oxyhalide electrochemical cell is described. The electrode assembly comprises an elongate cathode of an electrochemically non-active but electrically conductive carbonaceous material disposed between an inner elongate portion and an outer elongate portion of a unitary lithium anode. That way, lithium faces the entire length of the opposed major sides of the cathode. This inner anode portion/cathode/outer anode portion configuration is rolled into a wound-shaped electrode assembly that is housed inside a cylindrically-shaped casing. A cylindrically-shaped sheet-type spring centered in the electrode assembly presses outwardly to limit axial movement of the electrode assembly. In one embodiment, all the non-active components, except for the cathode current collector which is nickel, are made of stainless-steel. This provides the cell with a low magnetic signature without adversely affecting the cell's high-rate capability.

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Patent Owner(s)

  • ELECTROCHEM SOLUTIONS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hession, John Braintree, US 5 33
Johnson, Arden P Arlington, US 9 62
Miller, John S Dedham, US 45 1520
Wang, Yufei Easton, US 61 857

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