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Fabrication technology of cylindrical sealed nickel-metal hydride wide-temperature battery

A manufacturing process and nickel-metal hydride technology, which is applied to the manufacturing process of cylindrical sealed nickel-metal hydride wide-temperature batteries, can solve problems such as unsatisfactory working effect, inability to use normally, unsatisfactory effect, etc., to improve stability and liquid retention rate, reduce Battery internal resistance, the effect of improving low-temperature discharge performance

Inactive Publication Date: 2017-05-31
HUNAN GRAND PRO ROBOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ni-MH batteries can usually be divided into low-temperature Ni-MH batteries, high-temperature Ni-MH batteries and normal temperature Ni-MH batteries according to the use environment. The effect is not ideal; similarly, high-temperature Ni-MH batteries also have a similar phenomenon, the effect is obviously better in high-temperature environments, but the effect is not ideal in low-temperature environments (-5°C or below); the ambient temperature for normal-temperature Ni-MH batteries is usually -10 ℃-45℃, beyond this temperature range, the use effect will be poor, even can not be used normally

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  • Fabrication technology of cylindrical sealed nickel-metal hydride wide-temperature battery
  • Fabrication technology of cylindrical sealed nickel-metal hydride wide-temperature battery

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Effect test

Embodiment 1

[0033] The specific production process flow chart of our Ni-MH AA-type Ni-MH wide temperature battery is as follows: figure 1 shown. The positive electrode substrate adopts 450g / m2 produced by Changsha Liyuan New Material Co., Ltd. 2 Foamed nickel is used as the base material, nickel hydroxide is made of high temperature C04 spherical nickel produced by Jiangmen Changyou Industrial Co., Ltd. and Yanmen cobalt in a ratio of 90%: 10% (mass ratio), and the positive electrode is cobalt-coated spherical nickel hydroxide The preparation method is as follows: add high-temperature CO4 spherical nickel into the reactor, and continuously add other reaction solutions such as cobalt sulfate, sodium hydroxide, and ammonia water to obtain a surface-coated Co(OH) 2 The spherical nickel hydroxide is then exposed in the air or under the condition of oxygen to obtain the spherical nickel hydroxide coated with cobalt; plus 2% titanium, yttrium, cobalt element additives (such as titanium dioxide...

Embodiment 2

[0034] Embodiment 2SC2800mAh Ni-MH wide temperature battery

[0035] SC2800mAh Ni-MH wide-temperature battery is a high-capacity battery. The specific production process flow chart is as follows: figure 1 shown. The positive electrode substrate adopts 420g / m2 produced by Changsha Liyuan New Materials Co., Ltd. 2 Foamed nickel is used as the base material, nickel hydroxide is made of high-temperature C04 spherical nickel produced by Jiangmen Changyou Industrial Co., Ltd., and Yanmen cobalt is mixed at a ratio of 80%: 4% (mass ratio), and the positive electrode is cobalt-coated spherical nickel hydroxide The preparation method is as follows: add high-temperature CO4 spherical nickel into the reactor, and continuously add other reaction solutions such as cobalt sulfate, sodium hydroxide, and ammonia water to obtain a surface-coated Co(OH) 2 The spherical nickel hydroxide is then exposed in the air or under the condition of oxygen to obtain the spherical nickel hydroxide coated ...

Embodiment 3

[0037] Our Ni-MH another AA-type Ni-MH wide-temperature battery specific production process flow chart is as follows: figure 1 shown. The positive electrode substrate adopts 280g / m2 produced by Changsha Liyuan New Materials Co., Ltd. 2 Foamed nickel is used as the matrix material. The nickel hydroxide is made of high-temperature C04 spherical nickel produced by Jiangmen Changyou Industrial Co., Ltd. and Yanmen cobalt at a ratio of 85%: 6% (mass ratio). The positive electrode is cobalt-coated spherical nickel hydroxide. The preparation method is as follows: add high-temperature CO4 spherical nickel into the reactor, and continuously add other reaction solutions such as cobalt sulfate, sodium hydroxide, and ammonia water to obtain a surface-coated Co(OH) 2 The spherical nickel hydroxide is then exposed in the air or under the condition of oxygen to obtain the spherical nickel hydroxide coated with cobalt; plus 1.5% titanium, yttrium, cobalt element additives (such as titanium d...

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Abstract

The invention discloses a fabrication technology of a cylindrical sealed nickel-metal hydride wide-temperature battery. The battery comprises a steel shell, wherein a pole group comprising a positive electrode, a negative electrode and a membrane is arranged in the steel shell; an electrolyte is injected into the steel shell; a positive collector structure is formed by connecting positive matrix nickel foam and a nickel-plated or pure-nickel upper collector plate; a porous metal mesh is adopted as the base material of the negative electrode; a nickel foam gasket is arranged at the bottom in the steel shell; a negative plate is pressed down to be in contact connection with the nickel foam gasket and the steel shell to form a negative collector structure; the active material of the positive electrode is prepared from the following components in percentages by weight: 80-90% of nickel hydroxide, 4-10% of cobalt and 1-2% of an additive; high-temperature alloy powder is adopted as a negative active material; the electrolyte is a mixture of KOH, NaOH, LiOH, H2O an Ba(OH)2; and the molar concentration of OH<-> is 7.2-8.6mol / L. The battery can be discharged at high rate within 5C between -40 DEG C and 70 DEG C; the technical problem of high-rate discharging of the nickel-metal hydride battery in high and low temperature environments is solved omnidirectionally; and the direction is provided for development and temperature widening of sealed cylindrical nickel batteries.

Description

technical field [0001] The invention relates to the field of battery technology, in particular to a manufacturing process of a cylindrical sealed nickel-hydrogen wide-temperature battery. The manufacturing process is mainly through the improvement of the internal structure of the single battery, the improvement and innovation of the positive and negative electrode materials and the electrolyte formula, so as to achieve Increase the temperature range in which the battery can be used, thereby increasing the geographical environment and range in which the battery can be used. Background technique [0002] With the improvement of social modernization, nickel-hydrogen batteries have gradually replaced nickel-cadmium batteries and lead-acid batteries to become an important part of the new energy industry and are widely used in various fields. But on a global scale, especially in areas above 30° north latitude in the northern hemisphere where the average winter temperature is below...

Claims

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Application Information

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IPC IPC(8): H01M10/28H01M4/36H01M4/38H01M4/52H01M4/66H01M4/70H01M4/74H01M10/26H01M10/30H01M10/42
CPCH01M4/366H01M4/383H01M4/52H01M4/661H01M4/70H01M4/745H01M10/26H01M10/286H01M10/30H01M10/4235H01M2300/0014Y02E60/10Y02P70/50
Inventor 陈振兵蔡胜祥熊兴海
Owner HUNAN GRAND PRO ROBOT TECH