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A temperature-resistant cylindrical Ni-MH battery

A nickel-metal hydride battery, cylindrical technology, applied in the field of temperature-resistant cylindrical nickel-metal hydride batteries, can solve the problems of inability to work, harsh temperature environment, loss of battery efficiency, etc., and achieve the effect of improving cycle life

Inactive Publication Date: 2012-02-01
广州云通锂电池股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Batteries made of single-layer battery shells and single-layer battery caps, because the single-layer steel shells and single-layer battery caps have good thermal conductivity, the battery can easily reach approximately the same or the same temperature as the ambient temperature in high and low temperature environments, thus Make the battery work extremely unstable at high temperature (higher than 60°C) or low temperature (lower than -40°C), or completely unable to work due to extremely low ambient temperature, or explode due to high temperature
Therefore, most of the existing batteries can only work under conventional temperature conditions or within a narrow temperature range, and under extreme temperature conditions such as higher temperature or lower temperature (such as space with a large temperature difference, cold polar conditions, etc.) Or under conditions such as hot desert climate) can not work normally, or can not work, even if the single-layer battery shell battery can work normally, it will be shortened due to the harsh temperature environment. The cycle life of the battery is short, and the cycle life is only several or several Ten times, even explosion or complete loss of battery efficiency due to temperature environment effects

Method used

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  • A temperature-resistant cylindrical Ni-MH battery
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  • A temperature-resistant cylindrical Ni-MH battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 Shown is a cross-sectional view of a temperature-resistant cylindrical Ni-MH battery according to a specific embodiment of the present invention.

[0024] A kind of temperature-resistant cylindrical Ni-MH battery of the present invention, this battery shell is by three parts: battery shell 1 ( figure 1 ), battery cells 2 ( figure 1 ), battery cap 3 ( figure 1 ). The battery case 1 (Fig. 2) consists of the battery case 1a ( Figure 2a ), battery inner case 1c ( Figure 2a ) and polyethylene foam insulation material 1b filled between the battery case 1a and the battery inner case 1c ( Figure 2b ) and a stainless steel cylindrical porous connection support column 1d ( Figure 2b ) and other four parts. The battery case 1a and the battery inner case 1c are made of concentric cylindrical stainless steel material; the bottom of the battery case 1a and the battery inner case 1c are connected by a stainless steel porous support column 1d ( image 3 ) a...

Embodiment 2

[0029] Such as Figure 5 Shown is a cross-sectional view of a temperature-resistant cylindrical Ni-MH battery according to a specific embodiment of the present invention.

[0030] A kind of temperature-resistant cylindrical Ni-MH battery of the present invention, this battery shell is by three parts: battery shell 1 ( figure 1 ), battery cells 2 ( figure 1 ), battery cap 3 ( figure 1 ). The battery case 1 (Fig. 2) consists of the battery case 1a ( Figure 2a ), battery inner case 1c ( Figure 2a ) and polyethylene foam insulation material 1b filled between the battery case 1a and the battery inner case 1c ( Figure 2b ) and a nickel-plated steel cylindrical porous connection support column 1d ( Figure 2b ) and other four parts. The battery case 1a and the battery inner case 1c are made of concentric cylindrical nickel-plated steel materials; the bottom of the battery case 1a and the battery inner case 1c are connected by nickel-plated steel porous support columns 1d ...

Embodiment 3

[0035] Such as Figure 5 Shown is a cross-sectional view of a temperature-resistant cylindrical Ni-MH battery according to a specific embodiment of the present invention.

[0036] A kind of temperature-resistant cylindrical Ni-MH battery of the present invention, this battery shell is by three parts: battery shell 1 ( figure 1 ), battery cells 2 ( figure 1 ), battery cap 3 ( figure 1 ). The battery case 1 (Fig. 2) consists of the battery case 1a ( Figure 2a ), battery inner case 1c ( Figure 2a ) and polyethylene foam or asbestos heat insulation layer (asbestos heat insulation material) 1b ( Figure 2b ) and a stainless steel cylindrical porous connection support column 1d ( Figure 2b ) and other four parts. The battery case 1a and the battery inner case 1c are made of concentric cylindrical stainless steel material; the bottom of the battery case 1a and the battery inner case 1c are connected by a stainless steel porous support column 1d ( image 3 ) and the bottom ...

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Abstract

The invention discloses a temperature-resisting cylindrical nickel-metal hydride battery. The outer case and the inner case of the battery are made of concentric cylindrical stainless steel materials; the bottoms of the outer case and the inner case of the battery are in spot welding by a porous connection shore; a polyethylene foam thermal insulation material is filled between the outer case and the inner case of the battery, and the edges of the upper parts of the outer case and the inner case of the battery are welded by lasers; the positive plate and the negative plate of the battery are welded with an electric conductive electrode lug according to the volume of the battery; the cell of the battery is overlapped by the negative plate, a polyethylene non-woven fabrics diaphragm and the positive plate and is sequentially coiled by the negative plate, the polyethylene non-woven fabrics diaphragm and the positive plate from inside to outside; and the cell of the battery is arranged in a battery shell; the anode of the battery is welded with a battery cap by the electric conductive electrode lug of the anode, and the cathode is welded with the bottom of the battery shell by the electric conductive electrode lug of the cathode. The nickel-metal hydride battery of the invention has better temperature-resisting performance and can keep favourable charging and discharging operation state as well as electrical performance and longer recycling service life under the mal-condition of larger temperature difference.

Description

technical field [0001] The invention relates to the field of battery manufacturing, and more specifically relates to a temperature-resistant cylindrical nickel-hydrogen battery. It can be used as a power source for various electrical equipment under harsh environmental conditions such as aviation, aerospace, and polar regions. Background technique [0002] At present, the cylindrical Ni-MH batteries used in the existing industry are generally single-layer battery shells of nickel-plated steel or stainless steel, and single-layer battery caps of nickel-plated steel or stainless steel. Batteries made of single-layer battery shells and single-layer battery caps, because the single-layer steel shells and single-layer battery caps have good thermal conductivity, the battery can easily reach approximately the same or the same temperature as the ambient temperature in high and low temperature environments, thus Make the battery work extremely unstable at high temperature (higher t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/30H01M10/50
CPCY02E60/124Y02E60/10
Inventor 詹炳然詹金俊
Owner 广州云通锂电池股份有限公司