CN202977589U - Lithium ion battery electrode plate - Google Patents
Lithium ion battery electrode plate Download PDFInfo
- Publication number
- CN202977589U CN202977589U CN2012206070714U CN201220607071U CN202977589U CN 202977589 U CN202977589 U CN 202977589U CN 2012206070714 U CN2012206070714 U CN 2012206070714U CN 201220607071 U CN201220607071 U CN 201220607071U CN 202977589 U CN202977589 U CN 202977589U
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- Prior art keywords
- electrode plate
- lithium
- lithium ion
- ion battery
- electrode material
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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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Abstract
The utility model discloses a lithium ion battery electrode plate. The lithium ion battery electrode plate is characterized in that a conductive coating is applied between a current collector and an electrode material of the electrode plate; and the conductive coating has a unilateral thickness of 0.1 to 10 mum. In comparison with the existing lithium ion battery electrode plate, the lithium ion battery electrode plate provided by the utility model has the advantages of high binding force between the electrode material and the current collector, and small resistance; and a lithium battery made of the electrode plate has the advantages of high rate capability, small internal resistance change in the cycle process, and long cycle life.
Description
Technical field
The utility model relates to a kind of electrodes of lithium-ion batteries, belongs to electrodes of lithium-ion batteries structure-design technique field.
Background technology
Existing electrodes of lithium-ion batteries is made of collector and the electrode material that is coated in collection liquid surface.Because the collector of electrodes of lithium-ion batteries mostly is ganoid metal foil (usually just very aluminium foil, negative pole is Copper Foil), reach good in effect for making electrode material and collector, must contain the binding agent of higher proportion in electrode material; And in the circulating battery process along with lithium ion constantly embeds in electrode material and deviates from, the continuous dilation of electrode material volume, electrode material and collector in conjunction with effect worse and worse, very easily come off from collector.Therefore the lithium ion battery of producing by existing electrodes of lithium-ion batteries, internal resistance is higher, high-rate discharge ability is relatively poor, the cyclic process internal resistance raises comparatively fast, cycle life is also relatively poor.
The utility model content
Technical problem to be solved in the utility model is, a kind of electrodes of lithium-ion batteries is provided, in the situation that contain the higher proportion binding agent in not needing electrode material, also can make to reach good in effect between electrode material and collector, make simultaneously the performances such as pole piece resistance, the high rate performance of making battery, cycle life improve or promote.
For solving the problems of the technologies described above, the utility model provides a kind of electrodes of lithium-ion batteries, comprise collector, be coated in the electrode material of collection liquid surface, its improvements are to be provided with conductive coating between described collector and electrode material, and the single face thickness of conductive coating is 0.1～10 μ m.
Described conductive coating is comprised of one or more conductive compositions.
Single face thickness is preferably 2 μ m～5 μ m.
Adopt electrodes of lithium-ion batteries described in the utility model, have advantages of electrode material and pole piece collector adhesion is good, pole piece resistance is little, lithium battery good rate capability, the cyclic process internal resistance rate of change of being made by this pole piece be little, have extended cycle life.
Description of drawings
Accompanying drawing is the utility model cross-sectional view.
Embodiment
The electrodes of lithium-ion batteries that the utility model provides is made of pole piece collector 1, the conductive coating 2 and the electrode material 3 that are coated on the pole piece collector.
Described electrodes of lithium-ion batteries is when making, at first at described pole piece collector (aluminium foil just very usually, negative pole is Copper Foil) upper coating one deck conductive coating, described conductive coating is the mixture of one or more conductive compositions, and dry, control the single face thickness of described conductive coating at 0.1 μ m～10 μ m, be preferably 2 μ m～5 μ m; Then applying on the pole piece collector of conductive coating coated electrode material again, namely make described electrodes of lithium-ion batteries after oven dry.
The lithium ion battery of below making for the present embodiment and the performance comparison of the battery of existing electrodes of lithium-ion batteries making:
[internal resistance performance]
[high rate performance]
[cycle performance]
According to above test result as seen, electrodes of lithium-ion batteries of the present utility model all has greatly improved at aspects such as internal resistance, circulation internal resistance rate of change, high rate performance and cycle performances than the battery of the electrodes of lithium-ion batteries made of prior art.
The utility model electrodes of lithium-ion batteries is by first applying one deck conductive coating before coated electrode material on the pole piece collector, can effectively increase the adhesion between electrode material and pole piece collector, and can suitably reduce the content of binding agent in electrode material, thereby internal resistance, circulation internal resistance rate of change, high rate performance and the cycle performance etc. of making battery are improved.
Claims (2)
1. electrodes of lithium-ion batteries comprises collector, is coated in the electrode material of collection liquid surface, it is characterized in that being provided with conductive coating between described collector and electrode material, and the single face thickness of conductive coating is 0.1～10 μ m.
2. electrodes of lithium-ion batteries according to claim 1, it is characterized in that: the single face thickness of described conductive coating is 2～5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206070714U CN202977589U (en) | 2012-11-16 | 2012-11-16 | Lithium ion battery electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206070714U CN202977589U (en) | 2012-11-16 | 2012-11-16 | Lithium ion battery electrode plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977589U true CN202977589U (en) | 2013-06-05 |
Family
ID=48518627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206070714U Expired - Lifetime CN202977589U (en) | 2012-11-16 | 2012-11-16 | Lithium ion battery electrode plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096971A (en) * | 2021-03-29 | 2021-07-09 | 华南理工大学 | Nano porous Al/Au/MnO2Electrode material and super capacitor prepared from same |
| CN113929188A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Electrode structure, purification structure and electrode preparation method |
-
2012
- 2012-11-16 CN CN2012206070714U patent/CN202977589U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113929188A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Electrode structure, purification structure and electrode preparation method |
| CN113096971A (en) * | 2021-03-29 | 2021-07-09 | 华南理工大学 | Nano porous Al/Au/MnO2Electrode material and super capacitor prepared from same |
| CN113096971B (en) * | 2021-03-29 | 2021-12-21 | 华南理工大学 | Nano porous Al/Au/MnO2Electrode material and super capacitor prepared from same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |