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Internal convection cell

A battery and electrode technology, applied in the field of electrochemical batteries, can solve the problems of increasing the size and cost of flow pumps

Active Publication Date: 2013-05-08
FLUIDIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, in some such battery systems, the use of flow pumps not only increases the size and cost of the flow pumps themselves, but may also require manifolds, tubing, and reservoirs to connect multiple cells to the flow of the ionically conductive medium. middle

Method used

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  • Internal convection cell
  • Internal convection cell
  • Internal convection cell

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Embodiment Construction

[0026] figure 1 A schematic cross-sectional view of electrochemical cell 100 is shown. As shown, the components of electrochemical cell 100 may be at least partially contained within an associated housing 110 . Battery 100 utilizes a liquid ion-conducting medium contained within housing 110 and configured to circulate within housing 110 to conduct ions within battery 100 . While at times the ionically conductive medium may be substantially stationary within housing 110 (such as in a stagnation zone or other volume of ionically conductive medium), it will be appreciated that cell 100 may be configured to create convective flow of the ionically conductive medium. flow. The mechanisms used to create the flow of ionically conductive media in cell 100 are a feature of this disclosure and are described in more detail below.

[0027] The various portions of electrochemical cell 100 may have any suitable structure or composition, including but not limited to being formed from plast...

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Abstract

An electrochemical cell includes a permeable fuel electrode configured to support a metal fuel thereon, and an oxidant reduction electrode spaced from the fuel electrode. An ionically conductive medium is provided for conducting ions between the fuel and oxidant reduction electrodes, to support electrochemical reactions at the fuel and oxidant reduction electrodes. A charging electrode is also included, selected from the group consisting of (a) the oxidant reduction electrode, (b) a separate charging electrode spaced from the fuel and oxidant reduction electrodes, and (c) a portion of the permeable fuel electrode. The charging electrode is configured to evolve gaseous oxygen bubbles that generate a flow of the ionically conductive medium. One or more flow diverters are also provided in the electrochemical cell, and configured to direct the flow of the ionically conductive medium at least partially through the permeable fuel electrode.

Description

[0001] This application claims priority to US Provisional Patent Application No. 61 / 555,982, filed November 4, 2011, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates generally to electrochemical cells, and more particularly, to electrochemical cells utilizing liquid ionically conductive media. Background technique [0003] Many types of electrochemical cells utilize liquid ionically conductive media to support electrochemical reactions within the cell. For example, a metal-air electrochemical cell system may include a plurality of cells, each cell having a fuel electrode that acts as an anode where a metal fuel is oxidized and an air-breathing oxidant reduction electrode that acts as an anode. Oxygen from the ambient air is reduced at the reduction electrode. A liquid ionically conductive medium in such cells can transport oxidized / reduced ions between electrodes. [0004] In some electrochemical cell systems...

Claims

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Application Information

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IPC IPC(8): H01M12/06
CPCY02E60/128
Inventor C·A·弗里森R·克里希南G·弗里森J·海耶斯
Owner FLUIDIC
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