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Nickle zinc secondary battery anode

A secondary battery and positive electrode technology, which is applied to battery electrodes, alkaline storage battery electrodes, electrode carriers/collectors, etc., can solve problems such as battery cost increase, environmental adverse effects, and foamed nickel price increase, so as to reduce usage , Reduce environmental pollution and reduce costs

Inactive Publication Date: 2009-06-24
OPTIMUM BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foamed nickel is made by plating metal nickel on plastic foam with a large number of pores. It has good porosity and electrical conductivity. However, as the price of nickel rises, the price of foamed nickel also rises, resulting in battery the increasing cost of
In addition, nickel is a heavy metal, and it will also have adverse effects on the environment after it diffuses into the environment. Therefore, it is very important to find cheap and environmentally friendly materials to replace foamed nickel as the positive electrode carrier.

Method used

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Examples

Experimental program
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Embodiment 1

[0015] In this embodiment, the nickel-zinc AA 600mAh battery is taken as an example. The carrier fluid of the positive electrode of the nickel-zinc secondary battery is graphite paper, the thickness of the graphite paper is 0.1 mm, the tensile strength is 3 MPa, and the graphite purity is 99.9%.

[0016] Graphite paper is made of carbon fiber with a carbon content of 99.99% WT as the main material, and carbon fiber powder with a carbon content of 99.99% WT as a filling material, which is pressed. Cut the graphite paper into long strips with a width of 38mm, and then glue tabs at intervals of 80mm, which can be used as the carrier of the positive electrode.

[0017] The positive electrode material is prepared by weight percentage: the positive electrode active material nickel hydroxide is 70%, the auxiliary additive cobalt oxide is 5%, the conductive material graphite is 20%, and the binder is 4% polytetrafluoroethylene emulsion plus 1% Hydroxypropylmethylcellulose. Add the ni...

Embodiment 2

[0037] In this embodiment, the manufacture of a nickel-zinc AA600mAh battery is taken as an example. The positive carrier of the battery is made by coating graphite on the base material, and the base material is nylon. Those skilled in the art can also easily realize that one or more of graphite, carbon black, carbon powder, carbon fiber, nickel powder, metal powder or metal fiber can be used to replace the graphite used in the present embodiment, and nylon , Vinylon, or polyolefin, or fluorinated polyolefin, or one or more of polyamides constitutes a matrix material through single-layer or multi-layer composites to replace the nylon used in this embodiment, to achieve the same level as this embodiment. All materials have the same effect, so I won’t go into details here.

[0038] The thickness of the base material nylon is 0.35mm, and the tensile strength is 8MPa, such as figure 2 As shown, graphite is sprayed on the upper and lower sides of the base material nylon 4 respect...

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Abstract

The invention relates to a nickel-zinc secondary battery anode and relates to the technical field of battery manufacturing. The nickel-zinc secondary battery anode is composed of a current carrier and an anode material coated on the current carrier; the current carrier is graphite paper, or is composed of one or a plurality of graphite, carbon black, powdered carbon, carbon fiber, powdered nickel, metal powder or metal fiber which are coated on a basal body material; the cathode material is composed of active material, conducting material, additives and caking agents. Compared with the prior art, the nickel-zinc secondary battery anode has the beneficial effects that: the current carrier which is composed of the graphite paper or the basal body material of which is coated with graphite and the like is used as battery anode and overcomes the disadvantages that foam nickel is used as the current carrier of the battery anode in the traditional method, thus greatly reducing the using amount of the nickel and greatly reducing cost and lightening environment pollution.

Description

technical field [0001] The invention relates to the technical field of nickel-zinc secondary batteries. Background technique [0002] With the development of various electric devices toward miniaturization and portability, batteries have been used more and more widely. Batteries can be divided into primary batteries and secondary batteries. After a primary battery is discharged, it cannot be recharged and can only be discarded. Secondary batteries are also called rechargeable batteries, which can be recharged and recycled after being discharged. Therefore, secondary batteries are widely used in electric tools and electric toys. [0003] Nickel-cadmium batteries are traditionally used as a secondary battery, but because nickel-cadmium batteries use the toxic substance cadmium in the negative electrode, more and more countries have restricted the use of nickel-cadmium batteries. The solution is to find alternatives to nickel-cadmium batteries. Ni-MH battery is one of them,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/24H01M4/66H01M4/32H01M4/52H01M4/62
CPCY02E60/124Y02E60/10
Inventor 李瑶
Owner OPTIMUM BATTERY CO LTD