Preparation and Research Progress of Thermoelectric Materials in the Field of Fire Warning
Frequent fires have brought enormous losses to human life,the economy,and ecology.However,the widespread use of gas/smoke fire alarms requires an external power supply and mainly used in enclosed indoor environments.In recent years,the development of materials such as thermal resistor,thermochromics,and phase/shape transition materials also require external power sources,which will certainly bring electrical safety hazards.Thermoelectric materials can directly achieve the conversion of heat and electricity,and have broad application prospects in the fields of energy harvest,sensing,and industrial refrigeration.Research on fire warning systems based on thermoelectric materials is still in its early stages,but is receiving great attention.This article provides an overview of the current research status of thermoelectric fire warning.Firstly,the mechanisms and characteristics of thermoelectric materials and various types of thermoelectric fire warning are introduced,followed by the preparation and assembly of thermoelectric materials.Then,the research and application progress of thermoelectric materials in the field of fire warning are presented.Finally,the future development trends are discussed.
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