CN202474099U - Aluminium foil for lithium titanate batteries and special surface processing device - Google Patents
Aluminium foil for lithium titanate batteries and special surface processing device Download PDFInfo
- Publication number
- CN202474099U CN202474099U CN2012200484769U CN201220048476U CN202474099U CN 202474099 U CN202474099 U CN 202474099U CN 2012200484769 U CN2012200484769 U CN 2012200484769U CN 201220048476 U CN201220048476 U CN 201220048476U CN 202474099 U CN202474099 U CN 202474099U
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- China
- Prior art keywords
- aluminium foil
- lithium titanate
- surface processing
- roller
- rolling wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses an aluminium foil for lithium titanate batteries and a special surface processing device. The aluminium foil comprises an aluminium foil body, wherein an upper rough surface layer with a plurality of bulges is arranged at the upper side of the aluminium foil body; and a lower rough surface layer with a plurality of bulges is arranged at the lower side of the aluminium foil body. The special surface processing device comprises aluminium foil transmission mechanisms, aluminium foil surface processing wheels and the aluminium foil, wherein the aluminium foil transmission mechanisms drive the aluminium foil to pass through the aluminium foil surface processing wheels to form the upper rough surface layer on the upper side of the aluminium foil and form the lower rough surface layer on the lower side of the aluminium foil. The aluminium foil has the following beneficial effects: the aluminium foil has strong adhesive capacity with the lithium titanate slurry and high coating thickness; and the surface density of the lithium titanate slurry coated on the aluminium foil is easy to improve.
Description
Technical field
The utility model relates to preparation lithium ion battery aluminum foil current collector technical field, and particularly a kind of lithium titanate battery is with the special surface processing unit (plant) of aluminium foil and this aluminium foil.
Background technology
Prepare in the process at lithium ion battery, the coating of pole piece slurry is one of key of development and production.In the slurry coating process of lithium titanate battery, can adhere on the negative current collector well after requiring spinel type lithium titanate Li4Ti5O12 material to blend together slurry.In the prior art; Because after spinel type lithium titanate Li4Ti5O12 material blended together slurry, this slurry viscosity was high, mobile poor, caused slurry when coating; The caking property of slurry and aluminum foil current collector is bad; When coating thickness is big, occur the dry linting phenomenon easily, thereby the slurry surface density of aluminum foil current collector pole piece is difficult to promote.In the prior art, for increasing the tackability of lithium titanate slurry on aluminum foil current collector, the mode of employing is generally the prescription of optimizing the lithium titanate slurry; Make it improve tackability to aluminum foil current collector, yet, because the lithium titanate battery is with the smooth surface of aluminium foil; The ability of its surface adhering slurry is low, therefore, and when this lithium titanate battery is big with the slurry thickness of aluminium foil coating; Still occur the dry linting phenomenon easily, the slurry surface density of aluminum foil current collector pole piece still is difficult to promote.
The utility model content
The technical problem that the utility model will solve is to above-mentioned deficiency of the prior art; Provide a kind of lithium titanate battery to use aluminium foil; The tackability of this aluminium foil and lithium titanate slurry is strong, coating thickness is big, and the lithium titanate slurry surface density that is coated with on this aluminium foil promotes easily; Simultaneously, the utility model also will provide the special surface processing unit (plant) of a kind of this lithium titanate battery with aluminium foil.
For solving above-mentioned first technical problem; The technical scheme of the utility model is: a kind of lithium titanate battery is used aluminium foil; Comprise the aluminium foil body, the upside of this aluminium foil body is provided with the last flocked layer of band several projections, and the downside of this aluminium foil body is provided with the following flocked layer of band several projections.
For solving above-mentioned second technical problem, the technical scheme of the utility model is: a kind of lithium titanate battery comprises aluminium foil transmission mechanism, aluminium foil surface processing roller and aluminium foil with the special surface processing unit (plant) of aluminium foil; This aluminium foil surface processing roller comprises upper roller and bottom roller; The outer surface of this upper roller and bottom roller is respectively equipped with scrub-brush; And this upper roller and bottom roller pressing up and down; Said aluminium foil transmission mechanism drives aluminium foil and passes from the pressing of upper roller and bottom roller, makes the upside of aluminium foil under the scrub-brush effect of downside at bottom roller of flocked layer, aluminium foil on the formation band several projections under the scrub-brush effect of upper roller, form the following flocked layer of being with several projections.
The beneficial effect of the utility model is: on the one hand; Because the lithium titanate battery is provided with the last flocked layer of being with several projections with the body upside of aluminium foil, the body downside is provided with the following flocked layer of band several projections, therefore; It is coarse surface that this lithium titanate uses the outer surface of aluminium foil; Coat when having on the coarse flocked layer when the lithium titanate slurry, the tackability of this aluminium foil and lithium titanate slurry is strong, coating thickness is big, and the lithium titanate slurry surface density that is coated with on this aluminium foil promotes easily.On the other hand; In the special surface processing unit (plant) of lithium titanate battery with aluminium foil; The aluminium foil transmission mechanism drives light face type aluminium foil and passes from the pressing of upper roller and bottom roller; Make the upside of light face type aluminium foil under the scrub-brush effect of downside at bottom roller of flocked layer, light face type aluminium foil on the formation band several projections under the scrub-brush effect of upper roller, form the following flocked layer of band several projections, thereby make the surface of aluminium foil become coarse, form uniform bistrichiasis face aluminium foil.
Description of drawings
Fig. 1 looks sketch map for the utility model lithium titanate battery with the vertical profile of aluminium foil.
Fig. 2 looks sketch map for the utility model lithium titanate battery with the special surface processing unit (plant) vertical profile of aluminium foil.
Among the figure: 1. aluminium foil; 11. aluminium foil body; 12. last flocked layer; 121. projection; 13. following flocked layer; 131. projection; 2. aluminium foil surface is processed roller; 21. upper roller; 211. scrub-brush; 22. bottom roller; 221. scrub-brush; 3. aluminium foil transmission mechanism; 31. left rolling wheel; 32. right rolling wheel.
Embodiment
Below in conjunction with accompanying drawing the structural principle and the operation principle of the utility model are done further explain.
As shown in Figure 1, this lithium titanate battery comprises aluminium foil body 11 with aluminium foil 1, and the upside of this aluminium foil body 11 is provided with the last flocked layer 12 of band several projections 121, and the downside of this aluminium foil body 11 is provided with the following flocked layer 13 of band several projections 131. Projection 121 and 131 can be evenly distributed circular protrusion; Also can be bar shaped or net form protrusion; Its purpose all is that to make this lithium titanate use the outer surface of aluminium foil 1 be coarse surface; When the lithium titanate slurry is coated when having on the coarse flocked layer, the tackability of this aluminium foil 1 and lithium titanate slurry is strong, coating thickness is big, and the lithium titanate slurry surface density of coating on this aluminium foil 1 promotes easily.
As shown in Figure 2, this lithium titanate battery comprises aluminium foil transmission mechanism 3, aluminium foil surface processing roller 2 and aluminium foil 1 with the special surface processing unit (plant) of aluminium foil; Aluminium foil 1 is a light face type aluminium foil in first being processed; This aluminium foil surface processing roller 2 comprises upper roller 21 and bottom roller 22; The outer surface of this upper roller 21 and bottom roller 22 is respectively equipped with scrub- brush 211 and 221; And this upper roller 21 and bottom roller pressing about in the of 22; Said aluminium foil transmission mechanism 3 drives light face type aluminium foil 1 and passes from the pressing of upper roller 21 and bottom roller 22; Make the upside of aluminium foil 1 under scrub-brush 221 effects of downside at bottom roller 22 of flocked layer 12, aluminium foil 1 on the formation band several projections 121 under scrub-brush 211 effects of upper roller 21, form the following flocked layer 12 of band several projections 131, thereby make the surface of light face type aluminium foil become coarse, form uniform bistrichiasis face aluminium foil.
As shown in Figure 2; As the optimal way of aluminium foil transmission mechanism 3, this aluminium foil transmission mechanism 3 comprises left rolling wheel 31 and right rolling wheel 32, and this left side rolling wheel 31 lays respectively at the both sides that aluminium foil surface is processed roller 2 with right rolling wheel 32; One end of said light face type aluminium foil 1 is wound on the left rolling wheel 31; The other end of light face type aluminium foil 1 is wound on the right rolling wheel 32, and this left side rolling wheel 31 passes through the location with right rolling wheel 32 and rotates, and light face aluminium foil 1 is passed from the pressing of said upper roller 21 and bottom roller 22.
The above; Only be the preferred embodiments of the utility model lithium titanate battery with the special surface processing unit (plant) of aluminium foil and this aluminium foil; Every any trickle modification, equivalent variations and modification of above execution mode being done according to the technical scheme of the utility model all belongs in the scope of the utility model technical scheme.
Claims (3)
1. a lithium titanate battery is used aluminium foil, comprises the aluminium foil body, it is characterized in that: the upside of said aluminium foil body is provided with the last flocked layer of band several projections, and the downside of said aluminium foil body is provided with the following flocked layer of band several projections.
2. a lithium titanate battery is characterized in that with the special surface processing unit (plant) of aluminium foil: comprise aluminium foil transmission mechanism, aluminium foil surface processing roller and aluminium foil; This aluminium foil surface processing roller comprises upper roller and bottom roller; The outer surface of this upper roller and bottom roller is respectively equipped with scrub-brush; And this upper roller and bottom roller pressing up and down; Said aluminium foil transmission mechanism drives aluminium foil and passes from the pressing of upper roller and bottom roller, makes the upside of aluminium foil under the scrub-brush effect of downside at bottom roller of flocked layer, aluminium foil on the formation band several projections under the scrub-brush effect of upper roller, form the following flocked layer of being with several projections.
3. lithium titanate battery according to claim 2 is with the special surface processing unit (plant) of aluminium foil; It is characterized in that: said aluminium foil transmission mechanism comprises left rolling wheel and right rolling wheel; This left side rolling wheel and right rolling wheel lay respectively at the both sides of aluminium foil surface processing roller, and an end of said aluminium foil is wound on the left rolling wheel, and the other end of aluminium foil is wound on the right rolling wheel; This left side rolling wheel and right rolling wheel pass aluminium foil through location and rotation from the pressing of said upper roller and bottom roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200484769U CN202474099U (en) | 2012-02-15 | 2012-02-15 | Aluminium foil for lithium titanate batteries and special surface processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200484769U CN202474099U (en) | 2012-02-15 | 2012-02-15 | Aluminium foil for lithium titanate batteries and special surface processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474099U true CN202474099U (en) | 2012-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200484769U Expired - Fee Related CN202474099U (en) | 2012-02-15 | 2012-02-15 | Aluminium foil for lithium titanate batteries and special surface processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593832A (en) * | 2015-01-23 | 2015-05-06 | 联合铜箔(惠州)有限公司 | Production process for double-faced rough electrolytic copper foil |
| CN106531933A (en) * | 2016-12-19 | 2017-03-22 | 绵阳绿环新能源环保科技有限公司 | Non-viscosity cleaning equipment for rechargeable battery after being repaired |
| CN108655844A (en) * | 2017-03-30 | 2018-10-16 | 江苏大亚铝业有限公司 | Grinding wheel roll climb-cut grinding device and application method |
-
2012
- 2012-02-15 CN CN2012200484769U patent/CN202474099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593832A (en) * | 2015-01-23 | 2015-05-06 | 联合铜箔(惠州)有限公司 | Production process for double-faced rough electrolytic copper foil |
| CN104593832B (en) * | 2015-01-23 | 2017-05-10 | 惠州联合铜箔电子材料有限公司 | Production process for double-faced rough electrolytic copper foil |
| CN106531933A (en) * | 2016-12-19 | 2017-03-22 | 绵阳绿环新能源环保科技有限公司 | Non-viscosity cleaning equipment for rechargeable battery after being repaired |
| CN108655844A (en) * | 2017-03-30 | 2018-10-16 | 江苏大亚铝业有限公司 | Grinding wheel roll climb-cut grinding device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20190215 |