Battery thermal run-away and combustion prevention system

a technology of combustion prevention and battery thermal runaway, which is applied in secondary cell servicing/maintenance, batteries, instruments, etc., can solve the problems of difficulty in extinguishing with conventional methods, and achieve the effect of preventing thermal runaway in batteries

Inactive Publication Date: 2019-01-17
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004]Embodiments of the present invention provide a method, system, program products, and devices for preventing thermal run-away in batteries, the device comprising:

Problems solved by technology

Since both oxygen and fuel are internally available to the cells, a fire can start within a single battery cell, and can be difficult to extinguish with conventional methods.

Method used

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  • Battery thermal run-away and combustion prevention system
  • Battery thermal run-away and combustion prevention system
  • Battery thermal run-away and combustion prevention system

Examples

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Embodiment Construction

[0018]Detailed embodiments of the present invention are disclosed herein with reference to the accompanying drawings. It is to be understood that the disclosed embodiments are merely illustrative of potential embodiments of the present invention and may take various forms. In addition, each of the examples given in connection with the various embodiments is intended to be illustrative, and not restrictive. Further, the figures are not necessarily to scale, some features may be exaggerated to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0019]References in the specification to “one embodiment”, “an embodiment”, “an example embodiment”, etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may n...

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Abstract

A device for preventing thermal run-away in a battery. The device includes a main compartment that is divided into a plurality of sub-compartments. A layer of material separates (i) a first sub-compartment containing a first chemical from (ii) a second sub-compartment containing a second chemical. In the event that a thermal run-away event is either detected or predicted, the layer of material degrades/is degraded and allows the chemicals to mix. The chemicals form an endothermic process that cools the battery, which at least delays the thermal run-away event. The device determines a delay period before thermal runaway is likely to occur and communicates that to a user.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates generally to battery device mechanical design. More specifically, the invention relates to prevention of thermal run-away in batteries through the use of an endothermic reaction.[0002]The battery industry is continually expanding to meet the increasing energy needs of the portable equipment, transportation, and communication markets. Lithium-ion is becoming the industry standard battery chemistry due to its high energy density, sealed design and high availability in world markets.[0003]Lithium-ion batteries are produced in a number of variations; the most popular lithium-ion batteries, which have the highest energy density, use a cobalt or nickel-cobalt oxide anode. These batteries have the ability to create their own internal supply of oxygen when overheated. More specifically, oxygen is liberated from the oxide material of the anode at elevated temperatures, which can occur due to a variety of causes, such as an internal shor...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01M10/613H02J7/00G01K11/20G01K11/12H01M10/48H01M10/42H01M10/0525
CPCH02J7/0031G01K11/20G01K11/125H01M10/0525H01M10/486H01M10/4257H01M10/613G01K11/165H01M2200/10H01M10/6595Y02E60/10H02J7/00309H02J7/007194H02J7/007192
Inventor CAMPBELL, ERICCZAPLEWSKI, SARAHPORTO, JENNIFERLABRECK, ELIN F.
Owner IBM CORP
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