CN208093666U - A kind of three electrode lithium batteries - Google Patents
A kind of three electrode lithium batteries Download PDFInfo
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- CN208093666U CN208093666U CN201820534401.9U CN201820534401U CN208093666U CN 208093666 U CN208093666 U CN 208093666U CN 201820534401 U CN201820534401 U CN 201820534401U CN 208093666 U CN208093666 U CN 208093666U
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- positive
- lithium
- copper foil
- reference electrode
- plate
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a kind of three electrode lithium batteries, positive mechanism includes positive pole ear and positive plate, positive pole ear is connect with positive plate, positive plate is located in electrolyte, cathode mechanism includes negative lug and negative plate, negative lug is connect with negative plate, negative plate is located in electrolyte, first diaphragm is between positive plate and negative plate, reference electrode is located at positive mechanism far from cathode mechanism side, reference electrode mechanism includes reference electrode lug, copper foil and lithium foil, reference electrode lug is connect with copper foil, copper foil is located in electrolyte, second diaphragm is between copper foil and positive plate, lithium foil is fixed on copper foil；The utility model proposes three electrode lithium batteries, by copper foil carry lithium foil be used as reference electrode, greatly extend the effective storage life of reference electrode, it is ensured that reference electrode does not fail during monitoring positive and negative pole tension for a long time；Common plating lithium technique is omitted, greatly simplifies the manufacturing process of three electrode of lithium battery.
Description
Technical field
The utility model is related to field of lithium, more particularly to a kind of three electrode lithium batteries.
Background technology
Current lithium battery industry is grown rapidly, and the method for various research lithium batteries also emerges one after another, and is introduced in lithium battery
Lithium reference electrode can monitor positive and negative anodes potential change respectively when lithium battery works normally, and therefore, reference electrode is in lithium battery
Mechanism study, battery design, impedance separation etc. have a wide range of applications.
Three electrode of lithium battery is made at present, mainly copper wire is placed on diaphragm, is encapsulated after preparing battery again to copper wire
Plating lithium processing is carried out, so that copper surface is adhered to last layer lithium metal, but its shortcoming is that reference electrode is difficult to maintain the long period, because
Relatively thin for one layer of lithium plating, long-term charge and discharge can be depleted, if to plating lithium time lengthening, and will appear Li dendrite
The problems such as.
Utility model content
To solve technical problem present in background technology, the utility model proposes a kind of three electrode lithium batteries.
The utility model proposes three electrode lithium battery of one kind, including positive mechanism, cathode mechanism, reference electrode mechanism,
First diaphragm, the second diaphragm and electrolyte；
Positive mechanism includes positive pole ear and positive plate, and positive pole ear is connect with positive plate, and positive plate is located in electrolyte；
Cathode mechanism includes negative lug and negative plate, and negative lug is connect with negative plate, and negative plate is located in electrolyte,
First diaphragm is between positive plate and negative plate for positive plate and negative plate to be isolated；
Reference electrode mechanism is located at positive mechanism far from cathode mechanism side, and reference electrode mechanism includes reference electrode pole
Ear, copper foil and lithium foil, reference electrode lug are connect with copper foil, and lithium foil is fixed on copper foil, and copper foil and lithium foil are located in electrolyte,
Second diaphragm is between copper foil and positive plate for copper foil and positive plate to be isolated.
Preferably, lithium foil surface area is accumulated less than copper foil surface.
Preferably, copper foil is fixed on far from lithium foil side on the second diaphragm.
In the utility model, the three electrode lithium batteries proposed have the following advantages：
1, lithium foil is carried by copper foil and is used as reference electrode, greatly extend the effective storage life of reference electrode, really
Reference electrode during monitoring positive and negative pole tension for a long time is protected not fail；
2, lithium foil is directly placed in soft-package battery to the reference electrode for preparing soft-package battery, common plating lithium work is omitted
Skill greatly simplifies the manufacturing process of three electrode of lithium battery；
3, it had both solved the problems, such as the extraction of reference electrode as lithium foil carrier using copper foil, while having also avoided softness
Lithium metal is broken during monitoring.
Description of the drawings
Fig. 1 be the utility model proposes a kind of three electrodes lithium battery structural schematic diagram.
Specific implementation mode
As shown in FIG. 1, FIG. 1 is the utility model proposes a kind of three electrodes lithium battery structural schematic diagram.
Referring to Fig.1, the utility model proposes three electrode lithium battery of one kind, including positive mechanism, cathode mechanism, reference electricity
Pole mechanism, the first diaphragm 4, the second diaphragm 5 and electrolyte；Lithium battery in the present embodiment is soft package lithium battery, soft package lithium battery
For rectangular parallelepiped structure；
Positive mechanism includes positive pole ear 11 and positive plate 12, and positive pole ear 11 is connected with positive plate 12 by welding manner
It connects, positive pole ear 11 extends to lithium battery external, and positive plate 12 impregnates in the electrolytic solution；
Cathode mechanism includes negative lug 21 and negative plate 22, and negative lug 21 is connected with negative plate 22 by welding manner
It connects, negative lug 21 extends to lithium battery external, and negative plate 22 is located in electrolyte, and negative plate 22 has setting with positive plate 12
Spacing, the first diaphragm 4 is between positive plate 12 and negative plate 22 for positive plate 12 and negative plate 22 to be isolated；
Reference electrode mechanism is located at positive mechanism far from cathode mechanism side, and reference electrode mechanism includes reference electrode lug
31, copper foil 32 and lithium foil 33, reference electrode lug 31 are connect with copper foil 32 by welding manner, and reference electrode lug 31 extends to
On the outside of lithium battery, copper foil 32 is located in electrolyte, and there is setting spacing, the second diaphragm 5 to be located between copper foil 32 and positive plate 12
For copper foil 32 and negative plate 22 to be isolated between copper foil 32 and positive plate 12, lithium foil 33 is fixed on by green glue on copper foil 32.
In the present embodiment, the effect of copper foil 32 is fixed lithium foil 33, so 33 surface area of lithium foil is less than 32 surface area of copper foil,
Lithium foil 33 is whole all to be fallen on copper foil 32, and soft lithium metal during monitoring positive and negative anodes potential change is avoided to be broken.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (3)
1. a kind of three electrode lithium batteries, which is characterized in that including positive mechanism, cathode mechanism, reference electrode mechanism, the first diaphragm
(4), the second diaphragm (5) and electrolyte；
Positive mechanism includes positive pole ear (11) and positive plate (12), and positive pole ear (11) is connect with positive plate (12), positive plate
(12) it is located in electrolyte；
Cathode mechanism includes negative lug (21) and negative plate (22), and negative lug (21) is connect with negative plate (22), negative plate
(22) it is located in electrolyte, the first diaphragm (4) is located between positive plate (12) and negative plate (22) for positive plate (12) to be isolated
With negative plate (22)；
Reference electrode mechanism is located at positive mechanism far from cathode mechanism side, and reference electrode mechanism includes reference electrode lug
(31), copper foil (32) and lithium foil (33), reference electrode lug (31) are connect with copper foil (32), and lithium foil (33) is fixed on copper foil (32)
On, copper foil (32) and lithium foil (33) are located in electrolyte, and the second diaphragm (5), which is located between copper foil (32) and positive plate (12), to be used for
Copper foil (32) and positive plate (12) is isolated.
2. three electrodes lithium battery according to claim 1, which is characterized in that lithium foil (33) surface area is less than copper foil (32) table
Area.
3. three electrodes lithium battery according to claim 1, which is characterized in that copper foil (32) is fixed far from lithium foil (33) side
On the second diaphragm (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820534401.9U CN208093666U (en) | 2018-04-16 | 2018-04-16 | A kind of three electrode lithium batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820534401.9U CN208093666U (en) | 2018-04-16 | 2018-04-16 | A kind of three electrode lithium batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208093666U true CN208093666U (en) | 2018-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820534401.9U Active CN208093666U (en) | 2018-04-16 | 2018-04-16 | A kind of three electrode lithium batteries |
Country Status (1)
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| CN (1) | CN208093666U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509304A (en) * | 2020-04-27 | 2020-08-07 | 惠州亿纬锂能股份有限公司 | Lithium ion three-electrode and preparation method and application thereof |
| CN111987379A (en) * | 2020-09-14 | 2020-11-24 | 江苏塔菲尔动力系统有限公司 | Lithium ion battery with reference electrode and preparation method thereof |
| CN112098863A (en) * | 2020-09-14 | 2020-12-18 | 江苏塔菲尔动力系统有限公司 | Method, device and system for detecting failure of lithium ion battery |
| CN113140820A (en) * | 2021-03-22 | 2021-07-20 | 同济大学 | Three-electrode button cell device for accurate measurement and application |
-
2018
- 2018-04-16 CN CN201820534401.9U patent/CN208093666U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509304A (en) * | 2020-04-27 | 2020-08-07 | 惠州亿纬锂能股份有限公司 | Lithium ion three-electrode and preparation method and application thereof |
| CN111509304B (en) * | 2020-04-27 | 2023-06-30 | 惠州亿纬锂能股份有限公司 | Lithium ion three-electrode and preparation method and application thereof |
| CN111987379A (en) * | 2020-09-14 | 2020-11-24 | 江苏塔菲尔动力系统有限公司 | Lithium ion battery with reference electrode and preparation method thereof |
| CN112098863A (en) * | 2020-09-14 | 2020-12-18 | 江苏塔菲尔动力系统有限公司 | Method, device and system for detecting failure of lithium ion battery |
| CN113140820A (en) * | 2021-03-22 | 2021-07-20 | 同济大学 | Three-electrode button cell device for accurate measurement and application |
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