726 results about "Thermal Battery" patented technology

This invention aims to improve the reliability of an electronic control system which drives an actuator on conveyance operation based on an electrical signal to make adjustments such as acceleration/deceleration and movement direction of a conveyance, by achieving a power unit for conveyances having a power source with no need of charge and with little performance deterioration, thereby allowing for practical application of high-performance conveyances. The present invention relates to a power unit for conveyance comprising a main power source and a stand-by power source, which is characterized in that a thermal battery is provided as the stand-by power source, and a conveyance which is provided with an electronic control system and the power unit for conveyance of the present invention, is constituted so that electric power for operating the electronic control system is supplied to the electronic control system from the power unit for conveyances. By employing a thermal battery as the stand-by power source as thus, the stand-by power source does not require to be charged and the long-term reliability of the stand-by power source is also ensured.

A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

The invention discloses a method for preparing a thin-film positive electrode for thermal batteries and belongs to the technical field of thin-film electrodes for thermal batteries. The method comprises the following steps: uniformly mixing active substances for positive electrodes, an electrolyte and carbon nano tubes in a certain mass ratio; then, adding a certain amount of distilled water, and adjusting the viscosity of the obtained mixture, so that the mixture becomes a pasty mixture and has certain viscosity; and enabling the pasty mixture to be uniformly adsorbed to the surface of a substrate by using a screen process press, and putting the substrate coated with the active substances into a vacuum drying oven to carry out vacuum drying, then obtaining the thin-film positive electrode for the thermal batteries. The thin-film positive electrode disclosed by the invention has the advantages of overcoming multiple defects caused by the existing powder compressing preparation process for the thermal battery electrodes, easily realizing the preparation of large-area or irregularly-shaped electrode plates, simplifying the electrode preparation process, improving the productivity, reducing the cost, and improving the stability and discharge performance of the batteries, therefore, the thin-film positive electrode has greater military and industrial application values.

An elastic thermal body wrap system comprising a reusable, washable, textile holder for removably holding at least one thermal pack in close bodily contact. The thermal pack comprises one or more heat cells comprising an exothermic composition. The system comprises a fastening system to hold the holder around a user's body, for example, the back. The invention also relates to a method for holding such a thermal pack in close bodily contact by wearing the holder.

An elastic thermal uniaxial joint wrap system comprising a reusable, washable, textile holder for removably holding at least one thermal pack in close bodily contact. The thermal pack comprises one or more heat cells comprising an exothermic composition. The system comprises a fastening system to hold the holder around a user's knee or elbow. The invention also relates to a method for holding such a thermal pack in close bodily contact by wearing the holder.

An improved emergency power system is disclosed for providing electrical power to a load such as a blowout preventer of a petroleum drilling apparatus. The improved emergency power system comprises a thermal battery having an anode and a cathode with a separator containing an electrolyte disposed therebetween. An internal heat layer is located in proximity to the separator containing the electrolyte. A squib is provided for activating the internal heat layer. The thermal battery remains dormant until the squib is energized to ignite the squib enabling the heat layer to render the electrolyte molten thereby activating battery to provide electrical power to the load. The squib may be energized remotely, mechanically or electrically.

A thin, flexible, porous ceramic composite (PCC) film useful as a separator for a molten-salt thermal battery comprises 50% to 95% by weight of electrically non-conductive ceramic fibers comprising a coating of magnesium oxide on the surface of the fibers in an amount in the range of 5% to 50% by weight. The ceramic fibers comprise Al₂O₃, AlSiO₂, BN, AlN, or a mixture of two or more of the foregoing; and the magnesium oxide coating interconnects the ceramic fibers providing a porous network of magnesium oxide-coated fibers having a porosity of not less than 50% by volume. The pores of the film optionally can include a solid electrolyte salt. A laminated electrode/PCC film combination is also provided, as well as a thermal battery cell comprising the PCC film as a separator.

A thermal battery which comprises a number of stacked cells, each cell consisting essentially of an anode with a lithium compound, a lithium free pyrotechnic heat source pellet which includes a cathode precursor and an all lithium electrolyte layer separating between the anode and the pyrotechnic heat source pellet. Upon ignition of the heat source, an oxide of the cathode precursor is obtained which is lithiated by the lithium supplied by the all lithium electrolyte ion source.

The present provides a cryogenic thermal battery arrangement for maintaining a superconducting magnet coil or similar apparatus at cryogenic temperature for a required shipping period, such as thirty days, without consuming a significant amount of costly cryogen. According to another aspect, the invention allows extended shipping periods without incurring excessive costs.

The invention belongs to a thermoelectric conversion technology field, specificly relating to a thermoelectric conversion battery, which solves the problem of a low converting rate of the thermoelectric conversion technical and a poor application effect in the existing technology. The thermoelectric conversion battery comprises heating poles for receiving electron, electron emitters and thermoelectric conversion materials between the heating poles and the electron emitters, wherein the emitters and heating poles are metallicl substance, and the thermoelectric conversion materials are made from pyrite. The said thermoelectric conversion battery of the invention can convert various heat energy into electric energy; it has an excellent sensitivity, even changes in the air temperature can make the thermal battery to generate current changes; it is a collection converter of ordinary thermal, so that the heating within 60-100 DEG C can get a very good thermoelectric conversion effect; and iy may use for a long period again and again.

Disclosed is a system and method for inducing therapeutic levels of hypothermia in a patient in the emergent care setting. The system consists of a small battery operated console and one or more garments. The garments are connected to the console by one or more umbilicals. The console provides cold fluid to the garments under pressure and the garment cools the surface of the body. Fluid returns from the garment back to the console in a closed loop fashion. The console contains an electrical battery and a thermal battery that provides operation of the system for more than one hour. The cooling capacity of the system is sufficient to induce therapeutic levels of hypothermia in approximately 30 to 90 minutes in most patients. Use of the system does not preclude any therapeutic or diagnostic interventions that are commonly performed in the emergent care setting.

The invention discloses a composite cathode material for a thermal battery and a preparation method of the composite cathode material. The composite cathode material for the thermal battery disclosed by the invention comprises the following raw materials in percentage by mass: 25%-55% of FeS2, 35%-65% of CoS2, 1%-5% of lithium oxide and 5%-10% of superfine conductive powder. The composite cathode material disclosed by the invention is high in conductivity and high in service efficiency.

The invention discloses a method for preparing a thin single cell thermal battery in a laminated mode based on a molten salt thermal spraying technology and the thin single cell thermal battery, belonging to the field of battery preparation technology. The method comprises the following steps: (1) preparing positive molten salt, and spraying the positive molten salt on a collector plate to form a positive electrode layer; (2) preparing electrolyte molten salt, and spraying the electrolyte molten salt on the positive electrode layer to form an electrolyte layer; (3) preparing negative molten salt, and spraying the negative molten salt on the electrolyte layer to form a negative electrode layer; or, setting a lithium-boron alloy negative plate on the electrolyte layer; and (4) setting the collector plate on the negative electrode layer or the lithium-boron alloy negative plate, and performing compression moulding to obtain the thin single cell thermal battery. The preparation method disclosed by the invention is simple, and can be used for improving the discharge capacity and stability of the battery.

The invention belongs to the field of thermal batteries, and relate to a carbon coated thermal battery electrode material and a preparation method thereof. Glucose and other carbon sources are added in the process of preparing cobalt disulfide through a hydrothermal method, and the cobalt disulfide electrode material with a carbon coated structure is prepared in situ; the mass content of carbon in the obtained material relative to cobalt disulfide ranges from 1% to 25%. The electrode material has the advantages of being high in specific capacity, good in air stability, simple in preparation process, easy to prepare in a large scale and the like.

The invention provides positive electrode material Fe<x>Co<1-x>S<2> powder of a thermal battery and preparation method for the powder. In the Fe<x>Co<1-x>S<2> powder, x is greater than 0 and less than 1. The positive electrode material Fe<x>Co<1-x>S<2> powder of the thermal battery is prepared by combination of advantages of two kinds of positive electrode materials of CoS<2> and FeS<2> by a method in combination of chemical deposition and high-temperature solid-phase reaction. The positive electrode material Fe<x>Co<1-x>S<2> powder of the thermal battery has the advantages of high capacity and high voltage platform of the FeS<2>, as well as the advantages of low electrical resistivity and thermal stability of CoS<2>, and is a novel positive electrode material of the thermal battery.

The invention discloses a preparation method of a thermal battery positive electrode material. The preparation method comprises the following steps: 1, mixing iron disulfide with additives in dry gas environment until the iron disulfide and the additives are uniform, putting the obtained mixture in a reaction furnace, continuously introducing an inert gas to the reaction furnace, rising the temperature in the reaction furnace to 320-550 DEG C, keeping the temperature for 0.5-8 h, taking out the obtained iron disulfide positive electrode material when the temperature in the reaction furnace decreases to 50 DEG C or below, crushing the iron disulfide positive electrode material, and sieving the crushed iron disulfide positive electrode material; 2, mixing cobalt sulfide with the additives until the cobalt sulfide and the additives are uniform, putting the obtained mixture in the reaction furnace, continuously introducing an inert gas to the reaction furnace, rising the temperature in the reaction furnace to 320-550 DEG C, keeping the temperature for 0.5-8 h, taking out the obtained iron disulfide positive electrode material when the temperature in the reaction furnace decreases to 50 DEG C or below, crushing the cobalt disulfide positive electrode material, and sieving the crushed cobalt disulfide positive electrode material; and 3, mixing the iron disulfide positive electrode material with the cobalt disulfide positive electrode material until the iron disulfide positive electrode material and the cobalt disulfide positive electrode material are uniform in order to prepare the polynary positive electrode material. The invention also discloses a thermal battery made of the positive electrode material.

A system for charging a battery pack of an electric vehicle comprises a heater for pre-heating the battery pack so that the battery pack is able to accept a charge from a charger. The battery pack is selectively de-coupled from the system during the pre-heating. When the battery pack has reached an appropriate temperature, the heater is selectively de-coupled from the system and the charger is coupled to the system to charge the battery. Advantageously, the battery pack is protected during pre-heating.

There are herein described energy storage systems. More particularly there are provided thermal energy storage systems comprising battery assemblies containing phase change materials and a monitoring system therefor. In addition there are provided thermal stores comprising battery assemblies having integral control means for management of the thermal energy provided by the battery assembly.