CN201252130Y - Anode of polymer lithium ion battery - Google Patents
Anode of polymer lithium ion battery Download PDFInfo
- Publication number
- CN201252130Y CN201252130Y CNU2008202000896U CN200820200089U CN201252130Y CN 201252130 Y CN201252130 Y CN 201252130Y CN U2008202000896 U CNU2008202000896 U CN U2008202000896U CN 200820200089 U CN200820200089 U CN 200820200089U CN 201252130 Y CN201252130 Y CN 201252130Y
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion battery
- oxygen
- collector
- coated
- Prior art date
- 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
Abstract
The utility model relates to an anode of a polymer lithium ion battery, which comprises a current collector; wherein, two LiCoO2 layers are respectively coated on both surfaces of the current collector; and a LiCoxNiyMnzO2 layer is coated on one surface of each LiCoO2 layer, which is back to the current collector. The utility model has the advantages of compact structure and good processability and greatly increases the stability of the battery in operation.
Description
Technical field
The utility model relates to a kind of polymer Li-ion battery positive pole.
Background technology
Along with modernized expanding economy, the industry of some special dimensions is more and more, and also is more and more to the demand type of battery at present, requires also more and more higher to its internal structure.Since lithium ion battery came out, its positive electrode all was with lithium cobalt oxygen (LiCoO
2) be main, its coating method all adopts monolayer material coating structure form.In recent years, stratiform lithium, cobalt, nickel and manganese oxygen (LiCoxNiyMnzO
2) and lithium manganese oxygen (LiMn
2O
4) develop rapidly, partly replace lithium cobalt oxygen (LiCoO
2) become more cheap, safer positive electrode, for guaranteeing the performance of battery, mostly lithium cobalt oxygen and other two kinds of material mixing collocation are used.This composite material and lithium cobalt oxygen (LiCoO
2) compare, caking property is slightly poor, causes the structure defective tightness, and processing characteristics is relatively poor.
Summary of the invention
The purpose of this utility model provides a kind of structure closely and the polymer Li-ion battery positive pole of good processability.
For achieving the above object, the technical solution of the utility model is: a kind of polymer Li-ion battery positive pole comprises collector, and the two sides of collector respectively is coated with a lithium cobalt oxygen (LiCoO
2) layer, described lithium cobalt oxygen (LiCoO
2) layer the surface respectively be coated with a lithium, cobalt, nickel and manganese oxygen (LiCoxNiyMnzO
2) layer.
As improvement, described collector is an aluminium foil spare.
As another technical scheme of the present utility model: a kind of polymer Li-ion battery positive pole comprises collector, and the two sides of collector respectively is coated with a lithium cobalt oxygen (LiCoO
2) layer, described lithium cobalt oxygen (LiCoO
2) layer the surface respectively be coated with a lithium manganese oxygen (LiMn
2O
4) layer.
As improvement, described collector is an aluminium foil spare.
The utility model adopts two kinds of materials double-layer coating structures on positive plate, make the structure that a kind of composite material is coated in positive plate with two kinds of materials of usefulness of the prior art and compare, because lithium, cobalt, nickel and manganese oxygen (LiCoxNiyMnzO
2) and lithium manganese oxygen (LiMn
2O
4) specific area big, with the bad adhesion of collector aluminium foil; And lithium cobalt oxygen laminar surface is a porous, and surface area is very big, with lithium, cobalt, nickel and manganese oxygen (LiCoxNiyMnzO
2) or lithium manganese oxygen (LiMn
2O
4) be coated in lithium cobalt oxygen (LiCoO
2) when going up, both caking property is then fine.Because the caking property of two kinds of materials is good, is difficult for falling film, makes that the positive electrode structure of described battery is tight, good processability.Two kinds of materials of polymer Li-ion battery positive pole can be participated in electrochemical reaction according to the sequencing of current potential in charge and discharge process, energy is contributed to battery in the capital, as: during the 1:1 collocation, capacity can equal the average of two kinds of materials, voltage also is like this, thereby its electrical property shows as the combination property of two kinds of materials, greatly improves the stability when battery operated.
Description of drawings
Fig. 1 is traditional coating structure schematic cross-section;
Fig. 2 is first kind of embodiment structural section of the utility model schematic diagram;
Fig. 3 is second kind of embodiment structural section of the utility model schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done detailed explanation.
Fig. 1 is the positive pole of the anodal polymer Li-ion battery of conventional hybrid, and it comprises plus plate current-collecting body 1 and positive electrode 2, and positive electrode is by two kinds of materials, as lithium cobalt oxygen (LiCoO
2) and lithium, cobalt, nickel and manganese oxygen (LiCoxNiyMnzO
2), mix according to a certain percentage, then blended anode material is coated on the positive plate, adopt said structure, processing characteristics is relatively poor, bad adhesion between active material and collector.
Embodiment one
Fig. 2 is first kind of embodiment of the present utility model, in the utility model, comprises plus plate current-collecting body 1, anode material of lithium cobalt oxygen 3 and lithium, cobalt, nickel and manganese oxygen 4 as shown in Figure 2; Plus plate current-collecting body 1 adopts aluminium foil to make; On plus plate current-collecting body 1 two sides, the lithium, cobalt, nickel and manganese of coating one deck lithium cobalt oxygen 3, and then coating one deck earlier oxygen 4, promptly outside by the center, plus plate current-collecting body 1,3 layers of lithium cobalt oxygen, lithium, cobalt, nickel and manganese oxygen are arranged in order for 4 layers.Adopt said structure,, make these two kinds of materials stronger caking property be arranged and be difficult for falling film because the specific area of lithium, cobalt, nickel and manganese oxygen 4 is big and surface lithium cobalt oxygen 3 is coarse, therefore, the tight and good processability of its structure.
Embodiment two
Fig. 3 is second kind of embodiment of the present utility model, in the utility model, its structure and first kind of embodiment are basic identical as shown in Figure 3, its difference is: on the two sides of plus plate current-collecting body 1, apply one deck lithium cobalt oxygen 5 earlier, and then coating one deck lithium manganese oxygen 6, promptly outside by the center, plus plate current-collecting body 1,5 layers of lithium cobalt oxygen, lithium manganese oxygen are arranged in order for 6 layers.Adopt said structure, because the specific area of lithium manganese oxygen 6 is big and surface lithium cobalt oxygen 5 is coarse, makes two materials that stronger caking property be arranged and be difficult for falling film, therefore, its structure closely and good processability.
Claims (4)
1, a kind of polymer Li-ion battery positive pole comprises collector, it is characterized in that: the two sides of collector respectively is coated with a lithium cobalt oxygen layer, and described lithium cobalt oxygen layer is coated with a lithium, cobalt, nickel and manganese oxygen layer back to the one side of collector.
2, polymer Li-ion battery positive pole as claimed in claim 1 is characterized in that: described collector is an aluminium foil spare.
3, a kind of polymer Li-ion battery positive pole comprises collector, it is characterized in that: the two sides of collector respectively is coated with a lithium cobalt oxygen layer, and described lithium cobalt oxygen layer is coated with a lithium manganese oxygen layer back to the one side of collector.
4, polymer Li-ion battery positive pole as claimed in claim 3 is characterized in that: described collector is an aluminium foil spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202000896U CN201252130Y (en) | 2008-09-05 | 2008-09-05 | Anode of polymer lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202000896U CN201252130Y (en) | 2008-09-05 | 2008-09-05 | Anode of polymer lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252130Y true CN201252130Y (en) | 2009-06-03 |
Family
ID=40747803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202000896U Expired - Fee Related CN201252130Y (en) | 2008-09-05 | 2008-09-05 | Anode of polymer lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252130Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872286A (en) * | 2012-12-10 | 2014-06-18 | 财团法人工业技术研究院 | Electrode structure of lithium battery |
-
2008
- 2008-09-05 CN CNU2008202000896U patent/CN201252130Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872286A (en) * | 2012-12-10 | 2014-06-18 | 财团法人工业技术研究院 | Electrode structure of lithium battery |
| CN103872286B (en) * | 2012-12-10 | 2017-04-12 | 财团法人工业技术研究院 | Electrode structure of lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20130905 |