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Electrochemical cells comprising conductive substrates

An electrochemical and battery technology, applied in the field of electrochemical batteries, can solve the problems of increasing the travel distance of electrons and reducing the conductivity between the cathode and the shell.

Active Publication Date: 2020-12-22
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This void further limits the thermal cooling capacity of the cell / battery and also increases the distance traveled by electrons during discharge (i.e. reduces electrical conduction between cathode and case)

Method used

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  • Electrochemical cells comprising conductive substrates
  • Electrochemical cells comprising conductive substrates
  • Electrochemical cells comprising conductive substrates

Examples

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example

[0084] The examples provided below are intended to be exemplary only and should not be considered as any kind of limitation on the scope of the proposed invention.

[0085] and figure 1 or Figure 4 A similar five electrochemical cells were assembled, and reference is made here to the Figure (cell 10 ) to facilitate this description. Three comparative cells (A, B and C) were assembled without the conductive matrix in the anode compartment 30 according to known methods and materials. The remaining two experimental cells (D and E) were assembled in a manner similar to the comparative cells, except that thin nickel sheets (0.001 inch thickness) and copper wool (25 grams) were placed on the experimental cells ( Figure 4 ) in the anode compartment 30 (the volume of the anode compartment is equivalent to about 75 ampere hours of sodium). The copper wool is arranged to extend approximately the full length of the anode compartment. All cells were assembled in the discharged stat...

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Abstract

An electrochemical cell is provided. The battery includes a housing having an interior surface defining a volume, and an elongated separator disposed within the housing volume. The elongated separator defines the axis of the cell. The isolate has an inner surface and an outer surface. The inner surface of the separator defines the first compartment. The outer surface of the separator and the inner surface of the housing define a second compartment having a volume. The battery also includes a conductive matrix disposed in at least a portion of the second compartment volume such that the conductive matrix occupies a gap between the outer surface of the separator and the inner surface of the housing. The gap in the second compartment extends in a direction substantially perpendicular to the axis of the battery.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of US Patent Application Serial No. 13 / 250,680, entitled "ELECTROCHEMICAL CELLS INCLUDING ACONDUCTIVE MATRIX," filed September 30, 2011, which is incorporated herein by reference. technical field [0003] The present disclosure generally relates to electrochemical cells. More specifically, the present disclosure relates to a high temperature electrochemical cell that includes a conductive matrix. Background technique [0004] A typical electrochemical cell / battery includes a negative electrode, a positive electrode, and an electrolytic material. High temperature molten salt rechargeable batteries (eg, metal sodium halide batteries) comprising a molten metal negative electrode (commonly referred to as an anode) and a beta alumina solid electrolyte in the cell are extremely relevant for energy storage applications. In addition to the anode, the battery includes a positive ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/38H01M10/39
CPCH01M10/38H01M10/39Y02E60/10Y02P70/50H01M10/365H01M10/399
Inventor M.拉赫曼B.N.拉马默蒂A.梅什科夫R.L.哈特M.A.瓦兰斯D.C.小博丹C.S.耶拉马利
Owner GENERAL ELECTRIC CO