CN213905431U - Lithium ion three-electrode battery - Google Patents
Lithium ion three-electrode battery Download PDFInfo
- Publication number
- CN213905431U CN213905431U CN202023345783.7U CN202023345783U CN213905431U CN 213905431 U CN213905431 U CN 213905431U CN 202023345783 U CN202023345783 U CN 202023345783U CN 213905431 U CN213905431 U CN 213905431U
- Authority
- CN
- China
- Prior art keywords
- electrode
- lithium ion
- reference electrode
- plate
- battery
- 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.)
- Active
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002390 adhesive tape Substances 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- OPHUWKNKFYBPDR-UHFFFAOYSA-N copper lithium Chemical compound [Li].[Cu] OPHUWKNKFYBPDR-UHFFFAOYSA-N 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium ion three-electrode battery, which comprises a shell, wherein a positive plate, a negative plate, a reference electrode and an isolating membrane are arranged in the shell, and the isolating membrane is positioned between the positive plate and the negative plate; the reference electrode is positioned between the isolating membrane and the positive plate or between the isolating membrane and the negative plate; and one side of the reference electrode, which is far away from the isolating membrane, is connected with the positive plate or the negative plate through an insulating adhesive tape. The utility model provides a lithium ion three-electrode battery adopts one deck barrier film and one deck insulating tape to keep apart reference electrode and positive plate, the negative plate, because the positive negative pole position that insulating tape corresponded can't take off and inlays lithium ion, avoided the two-layer diaphragm of big multiplying power charge-discharge to influence lithium ion transmission and the lithium of analysing at charging process like this, insulating tape area only influences battery capacity and does not influence electrode potential, this method easy operation, the result is reliable, the problem that conventional three-electrode method exists has been solved, can directly monitor and effectively analyze the positive negative pole of battery.
Description
Technical Field
The utility model relates to a three electrode battery technical field of lithium ion especially relates to a three electrode battery of lithium ion.
Background
Nowadays, the trend of global automobile electromotion is increasingly prominent, China is the largest market of global automobile electromotion, and lithium ion batteries with longer service life and wider application environment (temperature) range are the key points of current research. The prediction of the service life of a lithium ion battery, the change of the positive and negative electrode potentials of the lithium ion battery at different temperatures and electrochemical reaction are always hot points of research, wherein a three-electrode battery is taken as the first choice of research, the three-electrode battery is formed by introducing a lithium metal reference electrode into the complete lithium ion battery as a third electrode, however, in the conventional lithium ion three-electrode battery, the reference electrode is isolated from a positive plate and a negative plate by adopting isolation films, and the two isolation films influence the transmission of lithium ions in the charging and discharging process between the positive and negative electrodes, so that overpotential exists in the testing process, and errors are formed in the process of analyzing the polarity of the battery; particularly, in the process of high-rate charge and discharge, when the high-rate charge is carried out, the two layers of diaphragms and the reference electrode can cause the precipitation of metal lithium at the periphery of the reference electrode, so that the authenticity of a test result is influenced. Therefore, it is highly desirable to develop a novel lithium ion three-electrode battery.
Disclosure of Invention
To the deficiency among the prior art, the utility model aims at providing a lithium ion three-electrode battery replaces the one deck insulating tape with the one deck barrier film in the two-layer barrier film, adopts one deck barrier film and one deck insulating tape to keep apart reference electrode and positive plate, negative pole piece promptly, has solved the problem that conventional three-electrode method exists, can directly monitor and effective analysis to the positive negative pole of battery.
In order to achieve the above object, the utility model adopts the following technical scheme:
a lithium ion three-electrode battery comprises a shell, wherein a core cladding is arranged in the shell and comprises a positive plate, a negative plate, a reference electrode and an isolating membrane, and the isolating membrane is positioned between the positive plate and the negative plate; the reference electrode is positioned between the isolating membrane and the positive plate or between the isolating membrane and the negative plate; and one side of the reference electrode, which is far away from the isolating membrane, is connected with the positive plate or the negative plate through an insulating adhesive tape.
As a preferred technical scheme, a positive tab is arranged on the positive plate, a negative tab is arranged on the negative plate, and a reference tab is arranged on the reference electrode; positive tab, negative pole ear and reference utmost point ear all extend to the shell is outside, and the reference utmost point ear extend to the outside part of shell with positive tab reaches the negative pole ear is located the different sides of shell. Further preferably, one end of the reference electrode, which is far away from the reference electrode lug, is connected with an insulating rubber block, and the insulating rubber block and the insulating rubber tape are bonded together. The adhesive strength between the reference electrode and the positive plate or the negative plate is enhanced through the insulating rubber blocks.
As a preferred technical scheme, the reference electrode is a metal lithium copper melting strip (lithium copper composite strip for short), and the reference tab is a nickel tab. The lithium-copper composite belt has stable electrode potential, the process of plating lithium by adopting a copper wire is omitted, and the risk of reference failure caused by lithium dissolution or stripping of the lithium plated copper wire in the test process is avoided.
Preferably, the width of the reference electrode and the width of the insulating tape are both less than 1cm, and the width of the reference electrode is less than the width of the insulating tape.
As a preferable technical scheme, the lithium ion three-electrode battery is an aluminum-shell battery or a soft package battery.
The utility model has the advantages that:
the utility model provides a lithium ion three-electrode battery, replace one deck insulating tape with the one deck insulating tape in the two-layer barrier film among the prior art, adopt one deck barrier film and one deck insulating tape to take off reference electrode and positive plate promptly, the negative plate is kept apart, because the positive negative pole position that insulating tape corresponds can't take off and inlay lithium ion, avoided the two-layer diaphragm of big multiplying power charge-discharge to influence lithium ion transmission and the lithium analysis at charging process like this, insulating tape area only influences battery capacity and does not influence electrode potential, this method easy operation, reliable results, the problem that conventional three-electrode method exists has been solved, can directly monitor and effective analysis the positive negative pole of battery.
Drawings
FIG. 1 is a schematic diagram of a lithium ion three-electrode battery according to the present invention
Fig. 2 is a schematic view of a connection structure of a positive plate, a negative plate and a reference electrode in a core package according to an embodiment;
fig. 3 is a schematic view of a connection structure of a positive plate, a negative plate and a reference electrode in a core package according to another embodiment;
reference numerals: 1-shell, 2-core cladding, 3-positive plate, 4-negative plate, 5-reference electrode, 6-isolating membrane, 7-insulating adhesive tape, 8-positive tab, 9-negative tab, 10-reference tab and 11-insulating adhesive block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that in the present invention, it is to be understood that the terms "inside" and "outside" are used for indicating the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, a lithium ion three-electrode battery, which may be an aluminum-can battery or a pouch battery; the core cladding device comprises a shell 1, wherein a core cladding 2 is arranged in the shell 1, the core cladding 2 comprises a positive plate 3, a negative plate 4, a reference electrode 5 and an isolating membrane 6, and the isolating membrane 6 is positioned between the positive plate 3 and the negative plate 4. The positive plate 3 is provided with a positive tab 8, the negative plate 4 is provided with a negative tab 9, and the reference electrode 5 is provided with a reference tab 10; positive tab 8, negative tab 9 and reference tab 10 all extend to the outside of can 1, and the portion of reference tab 10 that extends to the outside of the can is located on a different side of the can than positive tab 8 and negative tab 9. Furthermore, the reference electrode 5 is a metal lithium copper melting strip (lithium copper composite strip for short), and the reference tab 10 is a nickel tab. The width of the reference electrode 5 and the width of the insulating tape 7 are both less than 1cm, and the width of the reference electrode 5 is less than the width of the insulating tape 7. For example, when the width of the insulating tape 7 is selected to be 3mm, the width of the reference electrode may be smaller than or equal to 2.5mm, so as to ensure that the reference electrode 10 can be stably attached to the positive electrode plate 3 or the negative electrode plate 4 through the insulating tape.
In one embodiment, referring to fig. 2, the reference electrode 5 is positioned between the separator 6 and the positive electrode tab 3, and the side of the reference electrode 5 remote from the separator 6 is connected to the positive electrode tab 3 by an insulating tape 7.
In another embodiment, referring to fig. 3, the reference electrode 5 is located between the separator 6 and the negative electrode tab 4, and the side of the reference electrode 5 away from the separator 6 is connected to the negative electrode tab 4 by an insulating tape 7.
In a preferred embodiment, in order to further enhance the bonding strength between the reference electrode 5 and the positive electrode sheet 3 or the negative electrode sheet 4, an insulating rubber block 11 is connected to one end of the reference electrode 5 away from the reference tab 10, and the insulating rubber block 11 is bonded to the insulating adhesive tape 7.
The utility model provides a lithium ion three-electrode battery, replace one deck insulating tape with the one deck insulating tape in the two-layer barrier film among the prior art, adopt one deck barrier film 6 and one deck insulating tape 7 to replace reference electrode 5 and positive plate 3 promptly, negative plate 4 keeps apart, because the positive negative pole position that insulating tape 7 corresponds can't take off and inlay lithium ion, avoided big multiplying power charge-discharge two-layer diaphragm like this and influenced lithium ion transmission and the lithium analysis in charging process, insulating tape area only influences battery capacity and does not influence electrode potential, this method easy operation, the result is reliable, the problem that conventional three-electrode method exists has been solved, can directly monitor and effective analysis the positive negative pole of battery.
Claims (6)
1. A lithium ion three-electrode battery comprises a shell, wherein a core cladding is arranged in the shell and comprises a positive plate, a negative plate, a reference electrode and an isolating membrane, and the isolating membrane is positioned between the positive plate and the negative plate; the method is characterized in that: the reference electrode is positioned between the isolating membrane and the positive plate or between the isolating membrane and the negative plate; and one side of the reference electrode, which is far away from the isolating membrane, is connected with the positive plate or the negative plate through an insulating adhesive tape.
2. The lithium ion three-electrode battery of claim 1, wherein: the anode plate is provided with an anode tab, the cathode plate is provided with a cathode tab, and the reference electrode is provided with a reference tab; positive tab, negative pole ear and reference utmost point ear all extend to the shell is outside, and the reference utmost point ear extend to the outside part of shell with positive tab reaches the negative pole ear is located the different sides of shell.
3. The lithium ion three-electrode battery of claim 2, wherein: and one end of the reference electrode, which is far away from the reference electrode lug, is connected with an insulating rubber block, and the insulating rubber block is bonded with an insulating adhesive tape.
4. The lithium ion three-electrode battery according to claim 2 or 3, characterized in that: the reference electrode is a metal lithium melting copper strip, and the reference electrode lug is a nickel electrode lug.
5. The lithium ion three-electrode battery according to any one of claims 1 to 3, wherein: the width of the reference electrode and the width of the insulating tape are both smaller than 1cm, and the width of the reference electrode is smaller than the width of the insulating tape.
6. The lithium ion three-electrode battery of claim 5, wherein: the lithium ion three-electrode battery is an aluminum shell battery or a soft package battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023345783.7U CN213905431U (en) | 2020-12-31 | 2020-12-31 | Lithium ion three-electrode battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023345783.7U CN213905431U (en) | 2020-12-31 | 2020-12-31 | Lithium ion three-electrode battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213905431U true CN213905431U (en) | 2021-08-06 |
Family
ID=77107039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023345783.7U Active CN213905431U (en) | 2020-12-31 | 2020-12-31 | Lithium ion three-electrode battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213905431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497693A (en) * | 2021-12-27 | 2022-05-13 | 国联汽车动力电池研究院有限责任公司 | Preparation method of three-electrode battery and lithium precipitation testing method thereof |
-
2020
- 2020-12-31 CN CN202023345783.7U patent/CN213905431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497693A (en) * | 2021-12-27 | 2022-05-13 | 国联汽车动力电池研究院有限责任公司 | Preparation method of three-electrode battery and lithium precipitation testing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9874610B2 (en) | Battery | |
| US10629963B2 (en) | Battery cell having a detection interface | |
| US20230207893A1 (en) | Three-electrode battery and energy storage system | |
| CN103441237B (en) | The chain type Li-ion batteries piles of buckle type lithium ion battery | |
| CN113422115B (en) | Lithium ion battery cell, lithium ion battery cell preparation method and lithium analysis detection method | |
| CN108511783A (en) | A kind of lithium battery | |
| CN213905431U (en) | Lithium ion three-electrode battery | |
| US20230282914A1 (en) | Battery cover plate, battery, and power system | |
| WO2018145361A1 (en) | Cylindrical battery and usage thereof | |
| CN208093669U (en) | It is a kind of can monitoring temperature polymer lithium ion battery cell | |
| CN116490998A (en) | Secondary battery | |
| JP2012252934A (en) | Battery, power generator, battery drive system, and method for detecting expansion of battery | |
| CN217035790U (en) | Self-heating battery system | |
| CN214254673U (en) | Battery module capable of preventing electrochemical corrosion | |
| CN116207357A (en) | Three-electrode cell structure, three-electrode battery and negative electrode potential monitoring method | |
| CN115541491A (en) | Shell corrosion detection method and system of battery and shell corrosion detection device | |
| CN103456912B (en) | Chain type Li-ion batteries piles | |
| CN219917527U (en) | Battery and vehicle | |
| CN201017924Y (en) | Lithium battery using copper pole ear | |
| CN214280048U (en) | Battery with a battery cell | |
| CN219843017U (en) | Battery for test | |
| CN216748013U (en) | Test battery | |
| WO2023284575A1 (en) | Tab assembly, circuit board, battery cell, battery, electronic device and mobile apparatus | |
| CN219677319U (en) | Three-electrode battery | |
| CN220873769U (en) | Battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |