Thermal battery capable of resisting high temperature environment of 500 DEG C
阅读说明：本技术 一种耐500℃高温环境热电池 (Thermal battery capable of resisting high temperature environment of 500 DEG C ) 是由 杨晓勇 石奎 王�华 史政 于 2020-07-14 设计创作，主要内容包括：本发明公开了一种耐500℃高温环境热电池,属于热电池技术领域,包括：电池壳体、电池盖体和位于壳体中的电堆,其特征在于：还包括绝缘隔热组件；所述电池壳体、电池盖体均采用钛合金材质,接线柱共有四个,其中一个为正极接线柱、一个为负极接线柱、两个为电点火头接线柱；四个接线柱分别密封固定在壳盖上。所述单体电池自上至下依次由负极、电解质、正极、加热药压制而成；所述电池电堆绝缘隔热组件采用低导热率的纳米隔热材料制成,所述电堆由47片单体电池串联构成,并通过上端板和下端板紧固在一起。通过采用上述技术方案,本发明热电池能够在500℃极端高温环境下使用,大大提高了热电池的高温使用极限,拓宽了热电池的应用领域。(The invention discloses a thermal battery capable of resisting a high-temperature environment of 500 ℃, which belongs to the technical field of thermal batteries and comprises: battery case, battery cover body and be located the pile in the casing, its characterized in that: the insulation and heat insulation assembly is also included; the battery shell and the battery cover are made of titanium alloy materials, and the number of the binding posts is four, wherein one binding post is a positive binding post, one binding post is a negative binding post, and the two binding posts are electric ignition head binding posts; the four binding posts are respectively fixed on the shell cover in a sealing way. The single battery is formed by pressing a negative electrode, an electrolyte, a positive electrode and a heating agent from top to bottom in sequence; the cell stack insulating and heat-insulating assembly is made of low-heat-conductivity nano heat-insulating materials, and the cell stack is formed by connecting 47 single cells in series and is fastened together through an upper end plate and a lower end plate. By adopting the technical scheme, the thermal battery can be used in an extreme high-temperature environment of 500 ℃, so that the high-temperature use limit of the thermal battery is greatly improved, and the application field of the thermal battery is widened.)
1. A thermal battery that is resistant to a high temperature environment of 500 ℃, comprising: battery case, battery cover body and be located the pile in the casing, its characterized in that: the insulation and heat insulation assembly is also included; wherein:
the battery shell and the battery cover are made of titanium alloy materials, and the number of the binding posts is four, wherein one binding post is a positive binding post, one binding post is a negative binding post, and the two binding posts are electric ignition head binding posts; the four binding posts are respectively fixed on the shell cover in a sealing way.
The single battery is formed by pressing a negative electrode, an electrolyte, a positive electrode and a heating agent from top to bottom in sequence;
the cell stack insulating and heat-insulating assembly is made of a nano heat-insulating material with low heat conductivity.
2. The 500 ℃ high temperature environment resistant thermal battery according to claim 1, wherein the electric stack is composed of 47 single cells connected in series and fastened together by upper and lower end plates.
3. The thermal battery capable of resisting the high-temperature environment of 500 ℃ according to claim 1 or 2, wherein the positive electrode of the electric pile is connected to the positive terminal through the diversion strip, and the negative electrode of the electric pile is connected to the negative terminal through the diversion strip.
4. The thermal battery of claim 1, wherein the negative electrode is LiB; the electrolyte is LiCliBrLiF; the anode is MS.
5. The thermal battery capable of resisting a high-temperature environment of 500 ℃ according to claim 1, wherein the thermal conductivity of the nano-insulation material is 0.01W/mK.
Technical Field
The invention belongs to the technical field of thermal batteries, and particularly relates to a thermal battery capable of resisting a high-temperature environment of 500 ℃.
Background
The thermal battery is a thermal activation reserve battery which uses the heating system of the battery to heat and melt non-conductive solid-state salt electrolyte into an ionic conductor to enter a working state. At present, the temperature of the use environment of the thermal battery is known to be between minus 55 ℃ and plus 71 ℃, and the individual use temperature can reach plus 120 ℃, but the thermal battery which can be used in the high-temperature environment of 500 ℃ is not available. The production and preparation technology of the thermal battery at the conventional use temperature cannot meet the environment condition of high temperature of 500 ℃, and a new technology is required to meet the requirement.
Disclosure of Invention
The invention aims to provide a thermal battery capable of resisting a high-temperature environment of 500 ℃, which can work normally and safely in the high-temperature environment of 500 ℃.
The invention aims to provide a thermal battery capable of resisting a high-temperature environment of 500 ℃, which comprises: battery case, battery cover body and be located the pile in the casing, its characterized in that: the insulation and heat insulation assembly is also included; wherein:
the battery shell and the battery cover are made of titanium alloy materials, and the number of the binding posts is four, wherein one binding post is a positive binding post, one binding post is a negative binding post, and the two binding posts are electric ignition head binding posts; the four binding posts are respectively fixed on the shell cover in a sealing way.
The single battery is formed by pressing a negative electrode, an electrolyte, a positive electrode and a heating agent from top to bottom in sequence;
the cell stack insulating and heat-insulating assembly is made of a nano heat-insulating material with low heat conductivity.
Preferably, the stack is formed by connecting 47 single cells in series and is fastened together by an upper end plate and a lower end plate.
Preferably, the positive pole of the pile is connected to the positive terminal through the diversion strip, and the negative pole of the pile is connected to the negative terminal through the diversion strip.
Preferably, the cathode is LiB; the electrolyte is LiCliBrLiF; the anode is MS.
Preferably, the thermal conductivity of the nano-insulation material is 0.01W/mK.
The invention has the advantages and positive effects that:
the thermal battery can be used in an extreme high-temperature environment of 500 ℃, so that the high-temperature use limit of the thermal battery is greatly improved, and the application field of the thermal battery is widened.
Drawings
FIG. 1 is a circuit diagram of a preferred embodiment of the present invention
FIG. 2 is a block diagram of a stack in a preferred embodiment of the invention;
wherein: 1. an upper end plate; 2. a positive electrode guide strip; 3. a negative electrode flow guide strip; 4. a single battery; 5. a lighting bar; 6. a lower end plate.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 2, the technical solution of the present invention is:
a thermoelectric battery resisting a high-temperature environment of 500 ℃ comprises a battery shell, a battery cover body, a galvanic pile positioned in the shell, and an insulating and heat-insulating assembly for insulating and heat-insulating the galvanic pile.
The battery shell and the battery cover are made of titanium alloy materials, and the number of the binding posts is four, wherein one binding post is a positive binding post, one binding post is a negative binding post, and the two binding posts are electric ignition head binding posts; are respectively fixed on the shell cover in a sealing way.
And, the stack is constituted by 47 single cells 4 (negative electrodes up) connected in series, and is fastened together by an
The single battery is formed by sequentially pressing a negative electrode, an electrolyte, a positive electrode and a heating agent from top to bottom, wherein the negative electrode is LiB; the electrolyte is LiCl, LiBr and LiF; the positive electrode is MS.
The above preferred embodiments are described in further detail below:
1) high-temperature-resistant battery shell and cover body
The traditional thermal battery uses stainless steel as the materials of the battery shell and the cover body, but the thermal battery prepared by the stainless steel shell and the cover body can not be normally used under the high-temperature condition of 500 ℃, and has the risks of deformation, leakage and the like.
In the technology, TA15 titanium alloy is used as a material of a battery shell and a battery cover, and the titanium alloy is used as a novel structural material, so that the titanium alloy has excellent comprehensive properties, such as low density, high specific strength and specific fracture toughness, good fatigue strength and crack expansion resistance, good low-temperature toughness and excellent corrosion resistance.
The performance parameters of the material under the environment of 500 ℃ are shown in the table 1.
TABLE 1 Material Property parameters
The thermal battery prepared by the TA15 titanium alloy shell and the cover body can still maintain excellent mechanical properties at the high temperature of 500 ℃, and the situations of deformation, leakage and the like can not occur.
2) Thermal design technique for battery interior
In the technology, the temperature of the battery service environment is very high and reaches 500 ℃, so the thermal design of the battery is an important guarantee for safe and stable operation, on one hand, the enough thermal life of the battery is guaranteed to maintain the electrical life of the battery, on the other hand, a balanced and stable thermal field is built in the battery, the local overheating caused by the influence of external high temperature is avoided, and a proper gradient thermal technology can be technically adopted. The heat distribution of the traditional thermal battery is over 75 percent, and the heat distribution in the technology is maintained between 60 percent and 70 percent.
3) Adopts nano heat-insulating material with low heat conductivity
The traditional thermal battery adopts ceramic fiber and asbestos as insulating and heat-insulating materials comprising a pile component, and the insulating effect of the materials is better, but the heat-insulating effect is not good enough. In a normal use temperature range, the heat insulation effect is less affected and the defect is not exposed, but in a high-temperature environment of 500 ℃, the heat insulation effect of the ceramic fiber and the asbestos basically fails, and external heat cannot be effectively prevented from being transmitted, so that the electrical property of the battery is affected.
In the technology, the pile component is wrapped by the nano heat insulating material with low heat conductivity, and compared with ceramic fiber and asbestos, the material is extremely low in heat conductivity (the heat conductivity coefficient of the asbestos is 0.1W/mK, and the heat conductivity coefficient of the nano heat insulating material is only 0.01W/mK), can effectively block heat generated by high temperature of 500 ℃ outside, and greatly reduces the influence of the outside heat on the inside of the battery.
4) Battery structure design
In this technique, traditional thermal battery is used for reference in battery structural design, the main component part: the ignition device comprises a galvanic pile, an ignition assembly, an ignition heating assembly, a current collecting piece assembly, a battery cover, a battery shell, an insulating and heat-insulating assembly and the like; the electric pile is formed by alternately stacking a plurality of single batteries and current collecting plate assemblies of heating plates, placing asbestos pads, mica pads and
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.