CN203644890U - Three-electrode lithium ion battery - Google Patents
Three-electrode lithium ion battery Download PDFInfo
- Publication number
- CN203644890U CN203644890U CN201420017040.2U CN201420017040U CN203644890U CN 203644890 U CN203644890 U CN 203644890U CN 201420017040 U CN201420017040 U CN 201420017040U CN 203644890 U CN203644890 U CN 203644890U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- electrode
- pole
- ion batteries
- battery core
- 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 - Lifetime
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 59
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 52
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 3
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005518 electrochemistry Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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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
-
- 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
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- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a three-electrode lithium ion battery. The three-electrode lithium ion battery comprises an aluminum shell, a naked battery core, electrolyte and an aluminum cover plate, wherein the naked battery core is received in the aluminum shell; the electrolyte is filled in the aluminum shell and contacted with the naked battery core; the aluminum cover plate is mounted on the aluminum shell; the naked battery core comprises a negative electrode piece, a positive electrode piece and an isolation membrane; the isolation membrane is spaced between the negative electrode piece and the positive electrode piece; an outmost layer of the naked battery core is coated by the isolation membrane; the bottom of the naked battery core is coated by an insulation rubber tape; and a plate lug is arranged on the aluminum shell and used as a reference electrode of three electrodes. The three-electrode lithium ion battery directly takes the aluminum shell as the reference electrode, so that the three-electrode lithium ion battery directly is simple to manufacture and high in efficiency; and by taking an aluminum electrode with stable electrochemical performance as the reference electrode, the measurement consistency of the three-electrode lithium ion battery can be effectively improved.
Description
Technical field
The utility model belongs to technical field of lithium ion, and more particularly, the utility model relates to a kind of three electrode lithium ion batteries.
Background technology
Along with the arriving of information age, the 3C consumption electronic products such as mobile phone, digital camera and notebook computer are more and more higher to the requirement of performance of lithium ion battery.The performance that improves constantly lithium ion battery be unable to do without the further investigation to power cell anode-cathode sheet and material, and at present, lithium ion battery research staff generally adopts three-electrode battery to carry out correlative study work.
Existing three electrode lithium ion batteries adopt one of anode and cathode as work electrode more, and another adopts lithium sheet metal or plating lithium sheet metal (line) as reference electrode very to electrode.
For example, Chinese patent CN200997429Y discloses a kind of three-electrode battery, and it comprises battery container, be contained in battery core in battery container, be poured into electrolyte in battery container, be installed on the cover plate on battery container, and reference electrode.Battery core is by positive plate, negative plate and be interval in barrier film between positive/negative plate and reel and form, positive plate, negative plate and reference electrode all contact with electrolyte, and wherein, cover plate is provided with the 3rd pole, reference electrode is connected with the 3rd pole, the positive pole of the 3rd pole and battery and negative pole insulation.
Chinese patent CN203039037U discloses a kind of three-electrode structure of lithium ion battery, it comprises packaging bag, naked battery core, positive pole ear, negative lug and reference electrode, naked battery core is packaged in packaging bag in the mode of sealing, positive pole ear and negative lug lead to outside packaging bag respectively in naked battery core, packaging bag forms airbag in the region on naked battery core side, reference electrode is packaged in airbag in the mode of sealing, and the distance between itself and naked battery core is 5-15mm.
But above-mentioned lithium ion battery all exists that three electrode manufacturing process is numerous and diverse, efficiency is low and measures the poor problem of consistency.
In view of this, find a kind of simple and effective three electrode lithium ion battery three-electrode systems and there is positive meaning and practical value for the further investigation of lithium ion battery.
Utility model content
The purpose of this utility model is: a kind of three electrode lithium ion batteries are provided, and it can simplify the manufacturing process of three electrode lithium ion batteries, improves the consistency that three electrode lithium ion batteries are measured.
In order to realize foregoing invention object, the utility model provides a kind of three electrode lithium ion batteries, it comprises: aluminum hull, be contained in naked battery core in aluminum hull, be poured into the electrolyte contacting in aluminum hull and with naked battery core, and be installed on the Aluminum cover on aluminum hull, naked battery core comprise cathode sheets, anode strip and be interval in cathode sheets and anode strip between barrier film, wherein, the outermost layer of naked battery core is coated by barrier film, and bottom is coated by insulating tape; Aluminum hull is provided with lug as three electrode reference electrode.
One as the utility model three electrode lithium ion batteries is improved, and described insulating tape is PP or PET or polyacrylamide adhesive tape.
One as the utility model three electrode lithium ion batteries is improved, and the profile of described aluminum hull is square.
One as the utility model three electrode lithium ion batteries is improved, and described Aluminum cover is provided with Positive Poles and negative pole pole, between pole and Aluminum cover, fills insulating cement.
One as the utility model three electrode lithium ion batteries is improved, and described pole is metal pole.
One as the utility model three electrode lithium ion batteries is improved, and described pole is nickel pole or nickel plating pole.
One as the utility model three electrode lithium ion batteries is improved, described cathode sheets and anode strip have respectively cathode tab and anode lug, and cathode tab and anode lug adopt respectively sheet metal correspondence to be welded in the Positive Poles and negative pole pole of described Aluminum cover.
One as the utility model three electrode lithium ion batteries is improved, and described welding sheet metal is nickel sheet metal or nickel-plated metal sheet.
With respect to prior art, the utility model three electrode lithium ion batteries have the following advantages:
First, directly using aluminum hull as third electrode, while having avoided traditional three electrode lithium ion batteries to make, Li sheet, numerous and diverse removing oxide layer, the electrochemistry of Li sheet metal (line) are plated to the pretreatment process such as Li, also without by third electrode Artificial Intervention winded group, conveniently realize auto reeling and assembling, therefore manufacture method is more simple and efficiency is high.
Secondly, the utility model three electrode lithium ion batteries, using the comparatively stable aluminium electrode of chemical property as reference electrode, can effectively improve the consistency that three electrode lithium ion batteries are measured.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model three electrode lithium ion batteries and beneficial effect thereof are elaborated, in accompanying drawing:
Fig. 1 is the cross-sectional schematic of the utility model three electrode lithium ion batteries.
Fig. 2 is the schematic diagram of the naked battery core of the utility model three electrode lithium ion batteries.
Fig. 3 is the cross-sectional schematic of the naked battery core of the utility model three electrode lithium ion batteries.
Fig. 4 is the schematic top plan view of the Aluminum cover of the utility model three electrode lithium ion batteries.
Fig. 5 is the cross-sectional schematic of the Aluminum cover of the utility model three electrode lithium ion batteries.
Embodiment
In order to make goal of the invention of the present utility model, technical scheme and technique effect thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further described.Should be understood that, the embodiment of describing in this specification is only used to explain the utility model, is not intended to limit the utility model.
Refer to shown in Fig. 1 to Fig. 5, the utility model provides a kind of three electrode lithium ion batteries, it comprises: aluminum hull 40, be contained in naked battery core 20 in aluminum hull 40, be poured into the electrolyte (not shown) contacting in aluminum hull 40 and with naked battery core 20, and be connected to the Aluminum cover 30 on aluminum hull 40.
The profile of aluminum hull 40 is square or class square structure, and naked battery core 20 is arranged in aluminum hull 40 and contacts with the electrolyte that is poured into aluminum hull 40.Aluminum hull 40 is provided with lug 41, and the set-up mode of lug 41 can be welding.Accordingly, the utility model three electrode lithium ion batteries are using aluminum hull 40 as three electrode reference electrode (aluminium electrode), using negative electrode, anode as three electrode work electrode, to electrode.
Below, carry out test comparison with regard to three electrode lithium ion batteries of the present utility model and traditional three electrode lithium ion batteries.
Tradition three electrode lithium ion batteries comprise aluminum plastic film and naked battery core, and naked battery core is reeled and formed by cathode sheets, anode strip and barrier film, are implanted with copper wire (through except preliminary treatment such as surface oxide layers) in naked battery core.The operations such as after naked battery core, aluminum plastic film heat-sealing, process changes into, electrochemistry plating Li obtain three-electrode battery.Tradition three electrode lithium ion batteries, with the very three electrode work electrode of negative and positive, to electrode, carry out electrochemical impedance test to plate Li copper wire as reference electrode.
In test comparison process, test condition is: frequency range, 30mHz～500KHz; Anode potential, 0.130V; Temperature, 0 ℃.
The test fitting result of two kind of three electrode lithium ion battery refers to table 1.Can find out from the matching impedance data of table 1, than traditional three-electrode battery, the test data consistency of three electrode lithium ion batteries described in the utility model is good.
The test fitting result of table 1 three electrode lithium ion batteries
In conjunction with above description with test knownly, with respect to prior art, the utility model three electrode lithium ion batteries have the following advantages:
First, directly using aluminum hull (aluminium electrode) as third electrode, while having avoided traditional three electrode lithium ion batteries to make, Li sheet, numerous and diverse removing oxide layer, the electrochemistry of sheet metal (line) are plated to the pretreatment process such as Li, also without by third electrode Artificial Intervention winded group, can conveniently realize auto reeling and assembling, therefore manufacture method is more simple and efficiency is high.
Secondly, the utility model three electrode lithium ion batteries, take the comparatively stable aluminium electrode of chemical property as reference electrode, can effectively improve the consistency that three electrode lithium ion batteries are measured.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition,, although used some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (8)
1. an electrode lithium ion battery, comprise aluminum hull, be contained in naked battery core in aluminum hull, be poured into the electrolyte contacting in aluminum hull and with naked battery core, and be installed on the Aluminum cover on aluminum hull, naked battery core comprise cathode sheets, anode strip and be interval in cathode sheets and anode strip between barrier film, it is characterized in that: the outermost layer of described naked battery core is coated by barrier film, bottom is coated by insulating tape; Aluminum hull is provided with lug as three electrode reference electrode.
2. three electrode lithium ion batteries according to claim 1, is characterized in that: described insulating tape is PP or PET or polyacrylamide adhesive tape.
3. three electrode lithium ion batteries according to claim 1, is characterized in that: the profile of described aluminum hull is square.
4. three electrode lithium ion batteries according to claim 1, is characterized in that: described Aluminum cover is provided with Positive Poles and negative pole pole, between pole and described Aluminum cover, fill insulating cement.
5. three electrode lithium ion batteries according to claim 4, is characterized in that: described pole is metal pole.
6. three electrode lithium ion batteries according to claim 5, is characterized in that: described pole is nickel pole or nickel plating pole.
7. according to three electrode lithium ion batteries described in claim 5 or 6, it is characterized in that: described cathode sheets and anode strip are respectively equipped with cathode tab and anode lug, cathode tab and anode lug adopt respectively sheet metal correspondence to be welded in the Positive Poles and negative pole pole of described Aluminum cover.
8. three electrode lithium ion batteries according to claim 7, is characterized in that: described welding sheet metal is nickel sheet metal or nickel-plated metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017040.2U CN203644890U (en) | 2014-01-10 | 2014-01-10 | Three-electrode lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017040.2U CN203644890U (en) | 2014-01-10 | 2014-01-10 | Three-electrode lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644890U true CN203644890U (en) | 2014-06-11 |
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ID=50876113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017040.2U Expired - Lifetime CN203644890U (en) | 2014-01-10 | 2014-01-10 | Three-electrode lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644890U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099164A (en) * | 2016-08-23 | 2016-11-09 | 辽宁九夷锂能股份有限公司 | A kind of cylindrical battery three electrode assembly and assemble method thereof |
| CN107293778A (en) * | 2017-07-05 | 2017-10-24 | 力信（江苏）能源科技有限责任公司 | A kind of three-electrode battery and preparation method thereof |
| CN111129432A (en) * | 2019-11-28 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Novel reference electrode and three-electrode system for nondestructive testing of lithium ion battery industry and method |
| CN113921893A (en) * | 2021-09-26 | 2022-01-11 | 同济大学 | Method for constructing equivalent three-electrode system of lithium ion battery |
-
2014
- 2014-01-10 CN CN201420017040.2U patent/CN203644890U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099164A (en) * | 2016-08-23 | 2016-11-09 | 辽宁九夷锂能股份有限公司 | A kind of cylindrical battery three electrode assembly and assemble method thereof |
| CN106099164B (en) * | 2016-08-23 | 2018-08-17 | 辽宁九夷锂能股份有限公司 | A kind of three electrode assembly of cylindrical battery and its assemble method |
| CN107293778A (en) * | 2017-07-05 | 2017-10-24 | 力信（江苏）能源科技有限责任公司 | A kind of three-electrode battery and preparation method thereof |
| CN111129432A (en) * | 2019-11-28 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Novel reference electrode and three-electrode system for nondestructive testing of lithium ion battery industry and method |
| CN113921893A (en) * | 2021-09-26 | 2022-01-11 | 同济大学 | Method for constructing equivalent three-electrode system of lithium ion battery |
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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 |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |