A kind of manganese lithium battery raw powder's production technology of combination porous metals pieceTechnical field
The present invention relates to field of batteries, the manganese lithium battery raw powder's production technology of specifically a kind of combination porous metals piece.
Background technique
Lithium-manganese cell: full name lithium-manganese dioxide battery.In primary battery, using lithium metal as anode manganese dioxide asCathode, in primary battery, anode is cathode, and electronics flows to anode by cathode, and electric current flows to cathode by anode, in electrolytic cell middle-jiao yang, function of the spleen and stomachPole is connected with anode, and oxidation reaction occurs on anode is the anion in solution, corresponding with cathode.
Current domestic and international cell production companies, continue to use always the muffin production technology all not changed in over the past several decades,Battery capacity cannot be improved well and the production process proportion of goods damageds are high, be with existing disposable button type lithium-manganese battery (3.0V)Example, its powder is all round muffin shape or coating colloidal, it requires density very high in punching press, and meeting is otherwise easy when punching pressCracking, and capacity do not reach requirement standard when in addition producing cell process after muffin note electrolyte, is easier to be directed at muffin organicMeeting is loose, so qualitative control job requirement increases when powder processing process detection, increased costs when causing to produce.
Therefore the invention proposes a kind of processing method of the manganese lithium battery powder of combination porous metals piece, it is mainly used for primaryProperty lithium-manganese cell (1.5V and 3.0V) can be effectively reduced production cost using afflux technique, while also be able to ascend batteryQuality and capacity, have vast market prospect.
Summary of the invention
The purpose of the present invention is to provide a kind of manganese lithium battery raw powder's production technologies of combination porous metals piece, to solveThe problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme:
A kind of manganese lithium battery raw powder's production technology of combination porous metals piece, comprising the following steps:
1) take metal foil, open up microwell array on metal foil, be made porous metals piece, metal foil with a thickness of 8-20mm, overall width 217-370mm, punching width are 187-350mm, and the aperture of micropore is 0.25-0.4mm, adjacent cells itBetween spacing be 0.6-1mm；
2) PET film is adhered to porous metals on piece；
3) it is pressed into graininess after positive electrode being mixed, removes thick young powder by weeding out, obtains positive electrode particle slurry material；
4) PET film and porous metals piece will be pasted with using twin rollers and positive electrode particle slurry material roll-in becomes band powderBody；
5) recycle twin rollers by band-like powder roll-in porous metals on piece, flatten after molding by PET film tear half atProduct powder；
It 6) is that circle gets product powder by semi-finished product powder punching.
As a further solution of the present invention: the metal foil in the step 1) is copper foil or aluminium foil.
As a further solution of the present invention: micropore is rounded in the step 1) or diamond shape.
As a further solution of the present invention: the overall width of metal foil is 217mm in the step 1), and punching width is187mm, micropore size 0.25mm, micropore spacing are 0.6mm.
As a further solution of the present invention: the overall width of metal foil is 290mm in the step 1), and punching width is260mm, micropore size 0.35mm, adjacent cells spacing are 0.8mm.
As a further solution of the present invention: the overall width of metal foil is 370mm in the step 1), and punching width is350mm, micropore size 0.4mm, adjacent cells spacing are 1mm.
Compared with prior art, the beneficial effects of the present invention are:
The present invention produces battery powder using afflux technique, be mainly used for disposable lithium-manganese cell (1.5V and3.0V), it can be effectively reduced production cost, while being also able to ascend the quality and capacity of battery, before having wide marketScape.
Detailed description of the invention
Fig. 1 is conventional batteries powder structure schematic diagram.
Fig. 2 is the first structural schematic diagram using battery powder prepared by the present invention.
Fig. 3 is second of structural schematic diagram using battery powder prepared by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
Embodiment 1
In the present embodiment, a kind of manganese lithium battery raw powder's production technology of combination porous metals piece, comprising the following steps:
1) take metal foil, open up microwell array on metal foil, be made porous metals piece, metal foil with a thickness of 8-20mm, the overall width of metal foil are 217mm, and punching width is 187mm, micropore size 0.25mm, and adjacent cells spacing is0.6mm；
2) PET film is adhered to porous metals on piece；
3) it is pressed into graininess after positive electrode being mixed, removes thick young powder by weeding out, obtains positive electrode particle slurry material；
4) PET film and porous metals piece will be pasted with using twin rollers and positive electrode particle slurry material roll-in becomes band powderBody；
5) recycle twin rollers by band-like powder roll-in porous metals on piece, flatten after molding by PET film tear half atProduct powder；
It 6) is that circle gets product powder by semi-finished product powder punching.
Metal foil in the step 1) is copper foil or aluminium foil.
Micropore is rounded in the step 1) or diamond shape.
Embodiment 2
In the present embodiment, a kind of manganese lithium battery raw powder's production technology of combination porous metals piece, comprising the following steps:
1) take metal foil, open up microwell array on metal foil, be made porous metals piece, metal foil with a thickness of 8-20mm, the overall width of metal foil are 290mm, and punching width is 260mm, micropore size 0.35mm, and adjacent cells spacing is0.8mm；
2) PET film is adhered to porous metals on piece；
3) it is pressed into graininess after positive electrode being mixed, removes thick young powder by weeding out, obtains positive electrode particle slurry material；
4) PET film and porous metals piece will be pasted with using twin rollers and positive electrode particle slurry material roll-in becomes band powderBody；
5) recycle twin rollers by band-like powder roll-in porous metals on piece, flatten after molding by PET film tear half atProduct powder；
It 6) is that circle gets product powder by semi-finished product powder punching.
Metal foil in the step 1) is copper foil or aluminium foil.
Micropore is rounded in the step 1) or diamond shape.
Embodiment 3
In the present embodiment, a kind of manganese lithium battery raw powder's production technology of combination porous metals piece, comprising the following steps:
1) take metal foil, open up microwell array on metal foil, be made porous metals piece, metal foil with a thickness of 8-20mm, the overall width of metal foil are 370mm, and punching width is 350mm, and micropore size 0.4mm, adjacent cells spacing is 1mm；
2) PET film is adhered to porous metals on piece；
3) it is pressed into graininess after positive electrode being mixed, removes thick young powder by weeding out, obtains positive electrode particle slurry material；
4) PET film and porous metals piece will be pasted with using twin rollers and positive electrode particle slurry material roll-in becomes band powderBody；
5) recycle twin rollers by band-like powder roll-in porous metals on piece, flatten after molding by PET film tear half atProduct powder；
It 6) is that circle gets product powder by semi-finished product powder punching.
Metal foil in the step 1) is copper foil or aluminium foil.
Micropore is rounded in the step 1) or diamond shape.
The present invention produces battery powder using afflux technique, be mainly used for disposable lithium-manganese cell (1.5V and3.0V), it can be effectively reduced production cost, while being also able to ascend the quality and capacity of battery, before having wide marketScape.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er QieIn the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matterFrom the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended powerBenefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claimsVariation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrappedContaining an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art shouldIt considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the artThe other embodiments being understood that.