Unlock instant, AI-driven research and patent intelligence for your innovation.

Nickle-hydrogen alkaline battery and preparation method thereof

A battery and alkaline technology, which is applied in the manufacture of alkaline batteries, alkaline batteries, alkaline battery electrodes, etc., can solve the problems of low life and affecting battery life, and achieve the effect of long life and good charge acceptance

Inactive Publication Date: 2008-10-08
GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the use of cerium-rich mixed rare earth hydrogen storage alloys to prepare nickel-metal hydride batteries can improve the low-temperature performance of the batteries, but the life of this alloy is lower than that of batteries using lanthanum-rich mixed rare earth hydrogen storage alloys; The hydrogen storage alloy particles with smaller particle size can improve the discharge platform of the electrode under low temperature conditions. In addition to the particle size of the alloy used, the use of an alloy with low cobalt content can also improve the high-rate low-temperature performance of the battery, but the cobalt content in the alloy is too low It will also affect the life of the battery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nickle-hydrogen alkaline battery and preparation method thereof
  • Nickle-hydrogen alkaline battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below is an embodiment of the nickel-metal hydride battery of the present invention,

[0039] The prepared battery is a Sc type 3300mAh Ni-MH battery.

[0040] The weight percent composition of the slurry of positive plate:

[0041] Spherical β-Ni(OH) 2 88.8%

[0042] Cobalt powder 1%

[0043] Cobalt oxide 5%

[0044] Nickel 2%

[0045] Acetylene black 0.9%

[0046] Titanium dioxide 0.2%

[0047] Diyttrium trioxide 1%

[0048] PTFE 0.9%

[0049] Sodium hydroxymethylcellulose 0.2%

[0050] When preparing the battery, spherical β-Ni(OH) doped with 1.5% Zn and 3% Co 2 As the positive electrode active material, add ground cobalt powder, nickel, acetylene black and oxide mixture, then add polytetrafluoroethylene (60%) emulsion, CMC aqueous solution and appropriate amount of water and mix thoroughly to obtain the slurry; The slitting position is seam welded on the center position of the nickel foam strip. Positive electrode ingredients: Ni(OH) 2 : Cobaltou...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

This invention is nickle-hydrogen alkaline cell and its preparing method. The components of negative pole activating slurry include beta-Ni(OH)2 mixed with Zn and Co, Co powder, cobalt oxide, nickel, acetylene black, titania, yttria, polytef, and methylol cellulose sodium, fill the positive pole activating slurry in the bubble nickel collecting body to prepare positive pole board; the negative pole activating substances include enriched cerium storage hydrogen ally powder, enriched lanthanum, polyoxyethylene, methylol methylic cellulose and polytef, coat the negative pole slurry on the nickel-plated punched steel tape to prepare negative pole board. The battery of this invention has fine charge receiving capacity under the high temperature, and can discharge with high multiplying factor in the condition of relatively low temperature, and can be used to charge and discharge large current in the wide range of temperature and has long service life.

Description

technical field [0001] The invention relates to a nickel-hydrogen alkaline storage battery and a preparation method thereof, belonging to the field of batteries, in particular to a nickel-hydrogen alkaline storage battery. Background technique [0002] Nickel-metal hydride alkaline batteries are also called nickel-metal hydride (Ni-MH) batteries. When preparing nickel-hydrogen alkaline batteries, in the preparation of battery positive electrodes, compared with the traditional method of sintering to prepare nickel oxide positive electrodes, adopt The process of filling the nickel hydroxide active slurry into the nickel foam or fiber nickel current collector with a porosity of 95% can not only greatly improve the volume specific energy of the prepared plate, but also because the active material is filled into the current collector It is easy to implement in this method, and this method also greatly improves the production efficiency. This process has been widely used in the pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/30H01M4/24H01M4/52H01M4/38H01M4/26H01M10/28
CPCY02E60/124Y02E60/10Y02P70/50
Inventor 南俊民侯宪鲁薛建军夏信德孟宪臣
Owner GUANGZHOU GREAT POWER ENERGY & TECH CO LTD