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Methods and articles of manufacture and use of electrode compositions

A composition and cathode technology, applied in electrode manufacturing, battery electrodes, battery pack components, etc., can solve the problems of expensive nickel, difficult commercial large-scale operation, and not allowing uniform distribution across the cathode.

Active Publication Date: 2017-07-28
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials generally do not allow uniform distribution across the cathode
Plus, they're usually more expensive than the nickel they're trying to replace
Methods for introducing these materials into cathodes may be difficult to enter into commercial large-scale operations

Method used

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  • Methods and articles of manufacture and use of electrode compositions
  • Methods and articles of manufacture and use of electrode compositions
  • Methods and articles of manufacture and use of electrode compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0073] The examples presented below are for illustration only and these examples should not be construed as any kind of limitation on the scope of the claimed invention. All components were purchased from common chemical suppliers unless otherwise specified.

[0074] A nickel / sodium chloride based energy cell was assembled from the following materials:

[0075] Table 1

[0076]

[0077] Two electrochemical cells were constructed and tested to compare the recharge times of the control cells and cells containing the cathode compositions of the present disclosure. These examples had substantially similar composition, except that a corresponding volume of carbon black was used in place of a portion of the electroactive metal (nickel) in the test cells. In one case, the control cell contained no carbon, while the test cell replaced 15% of the mass of nickel in the control cell with an equivalent volume of carbon black.

[0078] Then test the battery in the following manner. ...

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Abstract

The present invention describes a positive electrode composition comprising particles of at least one electroactive metal, at least one alkali metal halide, and carbon black. The invention also describes energy storage devices and uninterruptible power supply devices. The present invention also discloses related methods of preparing positive electrodes and energy storage devices.

Description

[0001] Background of the invention [0002] The present disclosure generally relates to electrode compositions. In particular embodiments, the present disclosure relates to methods of making and using compositions for cathode materials. The present disclosure also includes energy storage devices utilizing this cathode material. [0003] Metal halide (Mx) batteries can be used in many energy storage applications. These batteries include both a negative electrode (anode) and a positive electrode (cathode) for moving electrons during battery operation. Nickel is a common component of the positive electrode. For example, current sodium metal halide cells use significant amounts of nickel not required to operate the cells but required to maintain packing density. In these cases nickel is used to create structure and conductivity, but generally the entire amount used is not required to operate the battery. [0004] There continues to be a growing need in the art for high performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/38H01M50/434
CPCH01M4/02H01M4/364H01M4/38H01M4/388H01M4/582H01M4/625H01M10/39H01M2220/10Y02E60/10H01M50/434H01M4/04H01M10/36
Inventor B.A.巴特林R.L.哈特M.A.瓦兰斯D.C.小博丹
Owner GENERAL ELECTRIC CO