CN103700894A

CN103700894A - Method for producing nickel-metal hydride button battery from novel compound nickel electrode

Info

Publication number: CN103700894A
Application number: CN201310588466.3A
Authority: CN
Inventors: 孙杰
Original assignee: Shandong Realdevelop Power Supply Technology Co Ltd
Current assignee: Shandong Realdevelop Power Supply Technology Co Ltd
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-04-02

Abstract

The invention discloses a method for producing a nickel-metal hydride button battery from a novel compound nickel electrode. The method utilizes a novel technical scheme to replace the traditional technology comprising that a nickel electrode is prepared from foamed nickel and the existing button battery is prepared from the nickel electrode, a hydrogen negative electrode and a diaphragm. The nickel-metal hydride button battery prepared from the novel compound nickel electrode has performances completely reaching a level of performances of a battery produced from the traditional electrode, and reduces a battery material cost by about 30%. Through use of the novel compound nickel electrode, continuous production of the nickel-metal hydride button battery plate is realized well, production efficiency is effectively improved and a production cost is reduced.

Description

A kind of ni-mh button cell production method that adopts NEW TYPE OF COMPOSITE nickel electrode

Technical field

The present invention relates to ni-mh button cell field.

Background technology

Button Ni-MH battery manufacturing enterprise is a lot of at present, is all that the traditional Foamed Nickel of employing is that skeleton is made nickel electrode, because Foamed Nickel price is higher, so battery production cost is higher.Adding and be not easy to continuous production, is all manual production substantially, and production efficiency is lower.

Summary of the invention

The present invention is directed to conventional art battery production cost higher, the shortcoming that production efficiency is lower, adopts new technical scheme to substitute traditional Foamed Nickel and makes nickel electrode and make button Ni-MH battery technical scheme with hydrogen negative pole, barrier film etc.

For achieving the above object, the technical solution used in the present invention is:

A ni-mh button cell production method that adopts NEW TYPE OF COMPOSITE nickel electrode, production method is divided into following steps,

(1). by hickelous nydroxide, cobalt protoxide, electrically conductive graphite mixing and stirring, slowly adding mass fraction is that 2% carboxymethylcellulose sodium solution, mass fraction are in the mixed solution of 4% polyvinyl alcohol and water configuration and stir;

(2). the active material slurry of step 1 gained is poured in slurry slurry bucket, by coating-spreading mould, controlled starching thickness, active material slurry is evenly coated in three-dimensional nickel plating steel mesh two sides, then through slurry stove, controls bake out temperature and dries;

(3). the compound nickel electrode of step 2 is carried out to twin rollers roll extrusion, then the die-cut nickel electrode of making of feeding;

(4). by hydrogen-storage alloy powder, conductive agent, binding agent mix and blend, be then evenly coated on copper mesh drying, roll extrusion, the die-cut hydrogen electrode of making;

(5). take compound nickel electrode as anodal, take hydrogen electrode as negative pole, centre separates with barrier film, packs button cell shell into, then injects electrolyte, and button Ni-MH battery is made in encapsulation.

As preferably, production method is divided into following steps,

(1). by hickelous nydroxide, cobalt protoxide, electrically conductive graphite, according to weight ratio, be 28:1:5～8 ratio mixing and stirring, slowly add by weight by 42 parts of mass fractions and be in 2% carboxymethylcellulose sodium solution, the 20 parts of mass fractions mixed solution that is 4% polyvinyl alcohol and 38 parts of water configurations and stir 60 minutes;

(2). the active material slurry of step 1 gained is poured in slurry slurry bucket, by coating-spreading mould, control starching thickness 2.75～2.80mm, active material slurry is evenly coated in three-dimensional nickel plating steel mesh two sides, then through slurry stove, controls 75～85 ℃ of bake out temperatures and dries;

(4). by hydrogen-storage alloy powder 6B-50, conductive agent carbonyl nickel powder, binding agent HPMC mix and blend, be then evenly coated on copper mesh drying, roll extrusion, the die-cut hydrogen electrode of making;

Advantage of the present invention is: the ni-mh button cell that adopts novel electrode to make, its performance can reach the level of using traditional electrode to make battery completely, make the material cost of battery reduce by 30% left and right, and the serialization of using new Type Nickel Electrodes can realize well button Ni-MH battery pole plate is produced, effectively improve production efficiency, reduced production cost.

Accompanying drawing explanation

Fig. 1 is new Type Nickel Electrodes structure chart.

Fig. 2 is for being used new Type Nickel Electrodes to make the STRUCTURE DECOMPOSITION figure of ni-mh button cell.

In accompanying drawing: 1, positive active material; 2, three-dimensional nickel plating steel mesh; 3, compound nickel electrode; 4, battery case; 5, barrier film; 6, copper mesh; 7, negative pole; 8, sealing ring; 9, upper cover; 10, positive pole.

Embodiment

The technical problem to be solved in the present invention is to utilize cheap continuous three-dimensional nickel plating steel mesh, substitutes biography

The Foamed Nickel of system is made nickel electrode and is made button Ni-MH battery in hydrogen negative pole, barrier film etc.

With preferred forms, be described as follows, its manufacturing process is:

1. by hickelous nydroxide, cobalt protoxide, electrically conductive graphite, according to weight ratio, be 28:1:5～8 ratio mixing and stirring, slowly add by weight by 42 parts of mass fractions and be in 2% carboxymethylcellulose sodium solution, the 20 parts of mass fractions mixed solution that is 4% polyvinyl alcohol and 38 parts of water configurations and stir 60 minutes;

2. as shown in Figure 1, the active material slurry of step 1 gained is poured in slurry slurry bucket, by coating-spreading mould, control starching thickness 2.75～2.80mm, active material slurry is evenly coated in three-dimensional nickel plating steel mesh two sides, then through slurry stove, controls 75～85 ℃ of bake out temperatures and dries;

3. the compound nickel electrode of step 2 is carried out to twin rollers roll extrusion, then the die-cut nickel electrode of making of feeding;

4. by hydrogen-storage alloy powder 6B-50, conductive agent carbonyl nickel powder, binding agent HPMC mix and blend, be then evenly coated on copper mesh drying, roll extrusion, the die-cut hydrogen electrode of making;

5. as shown in Figure 3, take compound nickel electrode as anodal, take hydrogen electrode as negative pole, centre separates with barrier film, packs button cell shell into, then injects electrolyte, and button Ni-MH battery is made in encapsulation.

The ni-mh button cell that adopts novel electrode to make, its performance can reach the level of using traditional electrode to make battery completely, make the material cost of battery reduce by 30% left and right, and the serialization of using new Type Nickel Electrodes can realize well button Ni-MH battery pole plate is produced, effectively improve production efficiency, reduced production cost.

Claims

1. a ni-mh button cell production method that adopts NEW TYPE OF COMPOSITE nickel electrode, is characterized in that: production method is divided into following steps,

(1), by hickelous nydroxide, cobalt protoxide, electrically conductive graphite mixing and stirring, slowly adding mass fraction is that 2% carboxymethylcellulose sodium solution, mass fraction are in the mixed solution of 4% polyvinyl alcohol and water configuration and stir;

(2) active material slurry of step 1 gained is poured in slurry slurry bucket, by coating-spreading mould, controlled starching thickness, active material slurry is evenly coated in three-dimensional nickel plating steel mesh two sides, then through slurry stove, controls bake out temperature and dries;

(4), by hydrogen-storage alloy powder, conductive agent, binding agent mix and blend, be then evenly coated on copper mesh drying, roll extrusion, the die-cut hydrogen electrode of making;

2. the ni-mh button cell production method of employing NEW TYPE OF COMPOSITE nickel electrode according to claim 1, is characterized in that: production method is divided into following steps,

(1) by hickelous nydroxide, cobalt protoxide, electrically conductive graphite, according to weight ratio, be 28:1:5～8 ratio mixing and stirring, slowly add by weight by 42 parts of mass fractions and be in 2% carboxymethylcellulose sodium solution, the 20 parts of mass fractions mixed solution that is 4% poly-(2) vinyl alcohol and 38 parts of water configurations and stir 60 minutes;

The active material slurry of step 1 gained is poured in slurry slurry bucket, by coating-spreading mould, controlled starching thickness 2.75～2.80mm, active material slurry is evenly coated in three-dimensional nickel plating steel mesh two sides, then through slurry stove, controls 75～85 ℃ of bake out temperatures and dries;

(4), by hydrogen-storage alloy powder 6B-50, conductive agent carbonyl nickel powder, binding agent HPMC mix and blend, be then evenly coated on copper mesh drying, roll extrusion, the die-cut hydrogen electrode of making;