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A kind of high specific power thermal battery single cell and preparation method thereof

A single battery, high specific power technology, applied in the electrodes of primary batteries, battery electrodes, primary battery use/maintenance, etc. Large and other problems, to achieve the effect of good high-current discharge characteristics, low internal resistance, and low equipment cost

Active Publication Date: 2022-07-29
GUIZHOU MEILING POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cathode material is mainly FeS 2 、NiCl 2 、CoS 2 , the composite sheet is pressed by the positive electrode and the electrolyte, the thickness is greater than 0.8mm; the negative electrode material is LiB and LiSi; the heating sheet is Fe and KClO 4 The mixture is pressed, and the thickness of the single battery is relatively large, usually more than 2mm, resulting in low thermal battery high specific characteristics, which reduces the specific power and material utilization of the battery

Method used

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  • A kind of high specific power thermal battery single cell and preparation method thereof
  • A kind of high specific power thermal battery single cell and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: The preparation method of high specific power thermal battery single cell, comprising the following steps:

[0029] 1) Cleaning and deoxidation of materials: prepare foam copper, aluminum foil and nickel foil, put them into 0.1mol / L hydrochloric acid for cleaning for 2 minutes, and put them into a vacuum drying oven to dry after cleaning; the area of ​​foam copper is 18.08cm 2 , the thickness is 1mm, the aperture is 0.3mm, and the porosity is 85%;

[0030] 2) Preparation of Cu-CuO-V 2 O 5 Positive electrode material: the NH 4 VO 3 Put it in water at 50°C and configure it as NH 4 VO 3 Saturated solution; put in the copper foam prepared in step 1), then heat up to 90°C and hold for 120min; take out the copper foam and put it in an oven at 60°C for 8 hours, then transfer it to a tube furnace at 600°C for 4 hours, and finally at 10MPa The pressure is pressed down to a thickness of 0.18mm;

[0031] 3) Preparation of boron nitride fiber composite diaphrag...

Embodiment 2

[0035] Embodiment 2: The preparation method of high specific power thermal battery single cell, comprising the following steps:

[0036] 1) Cleaning and deoxidation of materials: prepare foam copper, aluminum foil and nickel foil, put them into 0.3mol / L hydrochloric acid for cleaning for 1 min, and put them into a vacuum drying oven to dry after cleaning; the area of ​​foam copper is 18.08cm 2 , the thickness is 2mm, the aperture is 0.5mm, and the porosity is 90%;

[0037] 2) Preparation of Cu-CuO-V 2 O 5 Positive electrode material: the NH 4 VO 3 Put in water at 70°C and prepare NH 4 VO 3 Saturated solution; put in the copper foam prepared in step 1), then heat up to 90°C and hold for 60min; take out the copper foam and put it in an oven at 100°C for calcination for 18h, then transfer it to a tube furnace at 600°C for 4 hours, and finally at 30MPa Press down to a thickness of 0.2mm under the pressure;

[0038] 3) Preparation of boron nitride fiber composite diaphragm: ...

Embodiment 3

[0041] Embodiment 3: The preparation method of high specific power thermal battery single cell, comprising the following steps:

[0042] 1) Cleaning and deoxidation of materials: prepare foam copper, aluminum foil and nickel foil, put them into 0.1mol / L hydrochloric acid for cleaning for 2 minutes, and put them into a vacuum drying oven to dry after cleaning; the area of ​​foam copper is 18.08cm 2 , the thickness is 0.5mm, the aperture is 0.1mm, and the porosity is 82%;

[0043] 2) Preparation of Cu-CuO-V 2 O 5 Positive electrode material: the NH 4 VO 3 Put in water at 60°C and prepare NH 4 VO 3 Saturated solution; put in the foamed copper prepared in step 1), then heat up to 90 °C and hold for 120 min; take out the foamed copper, put it in an oven at 100 °C for 2 hours, then transfer it to a tube furnace at 600 °C for 2 hours, and finally at 10MPa Under the pressure, it is thinned to a thickness of 0.15mm;

[0044] 3) Preparation of boron nitride fiber composite diaphr...

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Abstract

This solution discloses a high specific power thermal battery single cell in the thermal battery technical field and a preparation method thereof. The high specific power thermal battery single cell is composed of Cu-CuO-V 2 O 5 , boron nitride fiber composite diaphragm, LiB alloy sheet, Al-Ni micron thin film heating sheet are stacked in a certain order; Cu-CuO-V 2 O 5 The thickness is 0.05mm~0.3mm, the thickness of the boron nitride fiber composite diaphragm is 0.1mm~0.3mm, the thickness of the LiB alloy sheet is 0.1mm~0.2mm, and the Al-Ni micron film is 5~50 layers. The invention solves the problem that the thickness of the current conventional thermal battery unit cell is large, which leads to the low performance of the thermal battery. , has the advantages of good electrochemical performance and strong stability, formability, thin thickness, low internal resistance, large current density and low pressure drop, strong resistance to harsh environments, high safety, suitable heating temperature range, and can be well applied to heat The battery usage environment matches.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, and in particular relates to a high specific power thermal battery single cell and a preparation method thereof. Background technique [0002] A thermal battery is a thermally activated reserve battery that relies on its own heating system to heat and melt a non-conductive solid state salt electrolyte into an ionic conductor and enter a working state. Thermal batteries have the characteristics of activation at any angle, fast activation speed, long storage time, and strong ability to withstand environmental mechanical conditions. , Fire alarm power supply, research reports on underground high temperature prospecting power supply. [0003] With the continuous development and updating of military equipment, the requirements for thermal battery performance are getting higher and higher, and the requirements for output power and high-speed characteristics are getting higher and higher. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/44H01M50/446H01M50/403H01M4/06H01M4/08H01M4/36H01M6/36H01M6/50H01M50/431
CPCH01M4/06H01M4/08H01M6/5038H01M6/36H01M50/431H01M50/44H01M50/403H01M50/449
Inventor 王明灿冉岭唐军张祖逸潘志鹏王京亮赵洪楷张小洪
Owner GUIZHOU MEILING POWER SUPPLY CO LTD
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