Definition

Thermal battery is the battery itself, the heating system to a non-conducting solid state heating molten salt electrolyte showed ionic conductor and into the working state of a thermally activated reserve battery. Use of solid salt electrolyte thermal battery is the main feature, it apparently different from the use of aqueous electrolytes, organic electrolytes and solid electrolyte batteries. As the use of solid electrolyte salts, electrolyte must be heated to melt solid salts into the ion conductor cell activation after discharge can, and because of solid electrolyte salts under normal circumstances is not conductive solid, the battery in the process of self-storage discharge is very small, easy to long-term storage. Therefore, the heating is activated and long-term storage of the two major characteristics of thermal batteries.

Composition

General thermal battery mainly by the substrate, Lenovo Thinkpad x301 battery the positive electrode, negative electrode, electrolyte film (or membrane films), silicon sheet sets, heating systems (electric igniter or caps, ignition paper, heating film), heat pads, battery shell and cover with a terminal of the battery etc..

(1) substrate: the carrier of the active substance, sometimes used as a single connection between the battery slice.

(2) positive electrode: cathode active material and is mainly composed of the substrate sheet structure. Commonly used cathode active material are: pyrite, tungsten trioxide, vanadium pentoxide, chromium acid, salmon, potassium dichromate, lead chromate.

(3) Negative film: mainly negative active material and the substrate composition of the sheet structure. The negative active material commonly used are: magnesium, calcium, lithium alloys, lithium silicon alloys, lithium alloy stretch.

(4) electrolyte film (or membrane): battery for electrolyte sheet structure, mainly composed of salts, Dell XPS M1330 battery electrolytes and adhesives, in addition to play the role of ionic conductivity, but also to prevent the positive electrode and negative electrode of the electronic conductivity between the .

(5) current collector sheet: collection of sheet metal electrode current export structure, and can isolate the electrodes and heating film, from the thermal protection.

(6) Heating system: receiving the ignition signal and the thermal battery ignition internal temperature rises to operating temperature of a component. Mainly by the electric igniter (electric activation) or the caps (mechanical activation), igniting paper and heated slices.

(7) insulation gaskets: asbestos, cloud, master, glass fibers, ceramic fibers made of a heat insulation effect of the various pads.

(8) Battery Shell: to accommodate the stack, and other structural parts of the container.

(9) with a terminal of the battery cover: with the battery shell welded into a sealed condition of the battery lid, the lid has positive terminal, negative terminal, and activate the terminal, etc. (If the mechanical activation of wiring can be omitted when activated). Between the terminal and the battery case and terminals with each other should have good insulating properties.

Special composition of the thermal batteries vary with the basic components, such as: calcium / calcium chromate hot cell, the positive electrode and electrolyte films together, constitute the piece DEB (D – to the very agent, Toshiba Satellite A215 battery E – electrolyte B – adhesive). Some long-life thermal battery to extend its life, the need to increase energy, increase the heat to prevent overheating after the occurrence of an increase in thermal heat storage battery tablets, used to regulate and stabilize the battery’s operating temperature.