CN207097970U - A kind of lithium ion battery containing Soft Roll three-electrode structure in situ - Google Patents
A kind of lithium ion battery containing Soft Roll three-electrode structure in situ Download PDFInfo
- Publication number
- CN207097970U CN207097970U CN201720962685.7U CN201720962685U CN207097970U CN 207097970 U CN207097970 U CN 207097970U CN 201720962685 U CN201720962685 U CN 201720962685U CN 207097970 U CN207097970 U CN 207097970U
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- China
- Prior art keywords
- lug
- lithium
- ion battery
- lithium ion
- situ
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- 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
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 41
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 40
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 6
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 239000011149 active material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
-
- 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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- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of lithium ion battery containing Soft Roll three-electrode structure in situ, including housing, it is characterised in that also includes：Positive pole ear, negative lug and the battery core being packaged in the housing, the side of the housing is provided with airbag, lithium reference electrode is provided with the housing, the lithium reference electrode, which is provided with, draws lug, the extraction lug is packaged on the airbag, and the lithium reference electrode and lug Surface coating have barrier film.Through the above way, interracial contact between electrode when the utility model can not interfere with lithium ion battery chemical conversion, so as to carry out in-situ test to lithium ion battery, more accurately lithium ion battery positive and negative electrode current potential can be monitored, and then rationally design battery NP ratios, avoid battery anodic potentials in charge and discharge process too high and negative terminal surface lithium separates out, improve lithium ion battery safety performance.
Description
Technical field
Lithium battery manufacturing technology field is the utility model is related to, contains Soft Roll three-electrode structure in situ more particularly, to one kind
Lithium ion battery.
Background technology
Lithium ion battery can be divided into cylindrical lithium ion battery, square aluminum case lithium ion electricity according to its shape and sheathing material
Pond, soft bag lithium ionic cell.At present, soft bag lithium ionic cell due to its light weight, energy density is high the advantages that be widely used
In fields such as consumer electronics product, new-energy automobiles.
Three electrodes are the common methods of lithium ion battery chemical property research, but traditional soft bag lithium ionic cell three is electric
Pole structure is melted into lithium ion battery（Charge）Before, reference electrode and both positive and negative polarity are separated using barrier film and are incorporated into battery
Portion, but this mode, the easy fold of positive/negative plate when carrying out battery seal, both positive and negative polarity interface when causing the lithium ion battery to be melted into
Loose contact, the accuracy of both positive and negative polarity potential test is influenceed, so as to rationally design the NP ratios of battery, NP ratios refer to unit
Area capacity ratio；NP=negative pole surface density * active material ratio * active materials gram volume/（Positive pole surface density * active material ratios
Rate * active material gram volumes）, typically at least above 1.0 in design, general minimum value takes 1.02.
Utility model content
Technical problem to be solved in the utility model is：In view of the shortcomings of the prior art, there is provided one kind is containing in situ soft
The lithium ion battery of bag three-electrode structure, both positive and negative polarity interracial contact is good when achievable lithium ion battery is melted into, and improves both positive and negative polarity electricity
Bit test accuracy, improve the security performance of lithium ion battery.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：One kind is provided and contains Soft Roll in situ
The lithium ion battery of three-electrode structure, including housing, in addition to：Be packaged in positive pole ear in the housing, negative lug and
Battery core, the side of the housing are provided with airbag, and lithium reference electrode is provided with the housing, and the lithium reference electrode, which is provided with, draws
Lug, the extraction lug are packaged on the airbag, and the lithium reference electrode and extraction lug Surface coating have barrier film.
Wherein, after lithium ion battery chemical conversion, the airbag is provided with opening, and the lithium reference is placed by the opening
Electrode is in the housing.
Wherein, the positive pole ear is aluminium pole ears, and negative lug is one kind in nickel lug, copper nickel plating lug.
Wherein, the lithium reference electrode is shaped as rectangle or circle, and the lithium reference electrode thickness is 0.1mm ~ 1.0mm.
Wherein, the lug of drawing is one kind in aluminium pole ears, nickel lug, copper nickel plating lug.
Wherein, the extraction lug is provided with lithium piece, the lithium piece thickness 0.5mm, long 2cm, wide 2cm.
Wherein, the housing is plastic-aluminum shell.
The beneficial effects of the utility model are：It is different from prior art, housing of the utility model in lithium ion battery
Side is provided with airbag, and lithium reference electrode is provided with housing, and the extraction lug of its one end is packaged on airbag, and lithium reference electrode and
Drawing lug Surface coating has barrier film.When lithium ion battery of the present utility model does not interfere with lithium ion battery chemical conversion between electrode
Interracial contact, so as to carry out in-situ test to lithium ion battery, more accurately lithium ion battery positive and negative electrode current potential can be supervised
Survey, and then rationally design battery NP ratios, avoid battery anodic potentials in charge and discharge process too high and negative terminal surface lithium separates out, carry
High-lithium ion battery safety.
Brief description of the drawings
Fig. 1 is the structural representation of the lithium ion battery described in the utility model containing Soft Roll three-electrode structure in situ.
Embodiment
For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained.
Fig. 1 is refer to, the utility model provides a kind of lithium ion battery containing Soft Roll three-electrode structure in situ, including aluminium
Plastic housing body 1, it is packaged in the housing 1 and is packaged with positive pole ear 2, negative lug 3 and battery core 4, the side of the housing 1 is pre-
Airbag 5 is left, after lithium ion battery chemical conversion, airbag 5 is cut off to form an opening 6, by the opening 6 in the housing 1
Lithium reference electrode 7 is inside put into, the lithium reference electrode 7, which is provided with, draws lug 8, and the extraction lug 8 is packaged in the airbag 5
On, and the lithium reference electrode 7 and the extraction Surface coating of lug 8 have barrier film 9.
Wherein, the positive pole ear 2 is aluminium pole ears, and negative lug 3 is one kind in nickel lug, copper nickel plating lug.
Wherein, the lithium reference electrode 7 is rectangle or circle, and the thickness of lithium reference electrode 7 is 0.1mm ~ 1.0mm.
Wherein, the lug 8 of drawing is one kind in aluminium pole ears, nickel lug, copper nickel plating lug.
Wherein, the extraction lug 8 is provided with lithium piece, the lithium piece thickness 0.5mm, long 2cm, wide 2cm.
Specifically, the step of making lithium ion battery described in the utility model is mainly as follows：
The first step：Anode ear, negative electrode lug, battery core are packaged in soft bag lithium ionic cell plastic-aluminum shell, plastic-aluminum shell-side side is pre-
Stay airbag.Electrolyte is injected from reserved airbag side in glove box and is open.It is melted into using traditional lithium-ion battery chemical synthesis technology,
Lithium ion battery is vented after drying room will be melted into using vacuum-pumping equipment, and reserved airbag side, which is cut off, to be positioned in glove box.
Second step：Thickness 0.5mm, long a width of 2cm*2cm square lithium piece are coated on extraction lug in glove box
Upper pressing, lithium piece and extraction lug cladding are prevented into internal short-circuit of battery with barrier film, then inserted by cutting off reserved airbag
To the ready lithium ion battery of the first step, it is packaged in side and reserves airbag edge, the utility model is made.
The utility model is installed on three electrode test apparatus, detects both positive and negative polarity electricity in lithium ion battery charge and discharge process
Position, you can determine whether that anodic potentials are too high or negative terminal surface lithium separates out, so as to go to adjust lithium ion battery NP ratios, improve lithium from
The security performance of sub- battery.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, similarly it is included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of lithium ion battery containing Soft Roll three-electrode structure in situ, including housing, it is characterised in that also include：Encapsulation
In the positive pole ear in the housing, negative lug and battery core, the side of the housing is provided with airbag, is provided with the housing
Lithium reference electrode, the lithium reference electrode, which is provided with, draws lug, and the extraction lug is packaged on the airbag, and the lithium is joined
There is barrier film than electrode and lug Surface coating.
2. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that lithium from
After sub- Battery formation, the airbag is provided with opening, and the lithium reference electrode is placed in the housing by the opening.
3. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that it is described just
Pole lug is aluminium pole ears, and negative lug is one kind in nickel lug, copper nickel plating lug.
4. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that the lithium
Reference electrode is shaped as rectangle or circle, and the lithium reference electrode thickness is 0.1mm ~ 1.0mm.
5. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that described to draw
Go out lug for one kind in aluminium pole ears, nickel lug, copper nickel plating lug.
6. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that described to draw
Go out lug and be provided with lithium piece, the lithium piece thickness 0.5mm, long 2cm, wide 2cm.
7. the lithium ion battery according to claim 1 containing Soft Roll three-electrode structure in situ, it is characterised in that the shell
Body is plastic-aluminum shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962685.7U CN207097970U (en) | 2017-08-03 | 2017-08-03 | A kind of lithium ion battery containing Soft Roll three-electrode structure in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962685.7U CN207097970U (en) | 2017-08-03 | 2017-08-03 | A kind of lithium ion battery containing Soft Roll three-electrode structure in situ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207097970U true CN207097970U (en) | 2018-03-13 |
Family
ID=61543562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720962685.7U Expired - Fee Related CN207097970U (en) | 2017-08-03 | 2017-08-03 | A kind of lithium ion battery containing Soft Roll three-electrode structure in situ |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207097970U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630980A (en) * | 2018-05-09 | 2018-10-09 | 合肥国轩高科动力能源有限公司 | Lithium ion three-electrode soft package battery and testing method thereof |
| CN110007245A (en) * | 2019-03-19 | 2019-07-12 | 合肥国轩高科动力能源有限公司 | Method for detecting N/P ratio design rationality of lithium ion battery by three electrodes |
| CN111366852A (en) * | 2020-03-26 | 2020-07-03 | 上海电气集团股份有限公司 | In-situ observation method and device for charging state of graphite electrode |
| CN111600077A (en) * | 2020-05-29 | 2020-08-28 | 重庆金康新能源汽车有限公司 | Battery cell with coated lithium reference electrode and method of providing |
| CN112730548A (en) * | 2020-12-30 | 2021-04-30 | 傲普(上海)新能源有限公司 | Lithium dendrite online monitoring method and system for lithium ion battery |
-
2017
- 2017-08-03 CN CN201720962685.7U patent/CN207097970U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630980A (en) * | 2018-05-09 | 2018-10-09 | 合肥国轩高科动力能源有限公司 | Lithium ion three-electrode soft package battery and testing method thereof |
| CN110007245A (en) * | 2019-03-19 | 2019-07-12 | 合肥国轩高科动力能源有限公司 | Method for detecting N/P ratio design rationality of lithium ion battery by three electrodes |
| CN110007245B (en) * | 2019-03-19 | 2021-08-06 | 合肥国轩高科动力能源有限公司 | Method for detecting N/P ratio design rationality of lithium ion battery by three electrodes |
| CN111366852A (en) * | 2020-03-26 | 2020-07-03 | 上海电气集团股份有限公司 | In-situ observation method and device for charging state of graphite electrode |
| CN111600077A (en) * | 2020-05-29 | 2020-08-28 | 重庆金康新能源汽车有限公司 | Battery cell with coated lithium reference electrode and method of providing |
| CN111600077B (en) * | 2020-05-29 | 2021-07-06 | 重庆金康新能源汽车有限公司 | Battery cell with coated lithium reference electrode and method of providing |
| CN112730548A (en) * | 2020-12-30 | 2021-04-30 | 傲普(上海)新能源有限公司 | Lithium dendrite online monitoring method and system for lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Jiaxing Inventor after: Wang Haoran Inventor after: Yang Yunjie Inventor after: Zhang Yuxi Inventor after: Han Wenyu Inventor before: Zhao Jiaxing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 |