CN211374542U - Battery cycle process in-situ observation tool - Google Patents
Battery cycle process in-situ observation tool Download PDFInfo
- Publication number
- CN211374542U CN211374542U CN201921855647.7U CN201921855647U CN211374542U CN 211374542 U CN211374542 U CN 211374542U CN 201921855647 U CN201921855647 U CN 201921855647U CN 211374542 U CN211374542 U CN 211374542U
- Authority
- CN
- China
- Prior art keywords
- clamping block
- battery
- right clamping
- left clamping
- cycle process
- 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
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
-
- 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 relates to the technical field of lithium ion batteries, in particular to a battery cycle process in-situ observation tool, which comprises a left clamping block, a right clamping block, a fastening bolt and a glass upper cover; the upper portions of the left clamping block and the right clamping block are used for clamping a battery, the upper glass cover is connected with the upper portion of the battery through resin, an adjusting area for adjusting the battery is arranged in the middle of the left clamping block and the right clamping block, and the fastening bolt is in threaded connection with the left clamping block and the right clamping block to fix the left clamping block and the right clamping block. The utility model provides a section department because the negative pole does not surpass the positive pole, the lithium phenomenon of separating that appears after the repeated charge-discharge.
Description
Technical Field
The utility model relates to a lithium ion battery technical field especially relates to a frock is surveyd to battery cycle process normal position.
Background
In recent years, with the continuous and deep application of lithium ion batteries in new energy vehicles, energy storage systems and 3C products, the research on the lithium ion batteries is also deep from the existing external electrical property test to the internal lithium intercalation process research. In addition, the study of the cycle life of the battery is not limited to external electrical performance tests.
The existing related technologies for in-situ observation of battery charging and discharging include: the device is a vertical electrochemical cell device (CN 105445347A) for in-situ photodynamic measurement, which can realize in-situ charge and discharge observation of the cell, but cannot perform optical detection of a cyclic process. 1, because the negative electrode is not completely coated on the section, the phenomenon of lithium precipitation can occur after multiple charging and discharging because the negative electrode is not completely coated on the positive electrode; 2. after charging and discharging for many times, the electrolyte at the observation section disappears, and the lithium intercalation phenomenon cannot be observed. The existing in-situ test of the battery cycle process is carried out by adopting an in-situ Raman monitoring mode: such as an in-situ raman monitoring device (CN 208111618U) during battery cycling, but the method cannot observe the morphology of the battery during cycling and cannot observe the lithium intercalation condition of the battery.
In addition, according to retrieval, the method for realizing the in-situ observation of the cycle process of the lithium ion battery by adopting a mode of solidifying the observation profile by using the high molecular polymer is not reported.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a frock is surveyd to battery cycle process normal position.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a battery cycle process in-situ observation tool comprises a left clamping block, a right clamping block, a fastening bolt and a glass upper cover; the upper portions of the left clamping block and the right clamping block are used for clamping a battery, the upper glass cover is connected with the upper portion of the battery through resin, an adjusting area for adjusting the battery is arranged in the middle of the left clamping block and the right clamping block, and the fastening bolt is in threaded connection with the left clamping block and the right clamping block to fix the left clamping block and the right clamping block.
Preferably, the lower parts of the left clamping block and the right clamping block are respectively provided with two semicircular grooves, and a positioning column is arranged between the two semicircular grooves.
The utility model has the advantages that (1) the lithium separation phenomenon which appears after charging and discharging for many times because the negative pole does not exceed the positive pole at the section is solved; (2) the phenomena that after multiple charging and discharging, electrolyte disappears at the observation section and the lithium embedding phenomenon cannot be observed are solved; (3) the observation window prepared by the method has high transparency and clear observation; (4) the method has simple process and good repeatability, and is very suitable for the optical in-situ research of the battery.
Drawings
FIG. 1 is a sample picture of a battery cycle observation window prepared according to an embodiment of the present invention;
FIG. 2 is a photograph of an observation cover containing gel prepared according to an embodiment of the present invention;
fig. 3 is a picture of an overall observation sample prepared by the embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in fig. 1, the in-situ observation tool for the battery cycle process comprises a left clamping block 1, a right clamping block 2, a fastening bolt 3 and a glass upper cover 4; the upper portions of the left clamping block and the right clamping block are used for clamping a battery 5, the upper glass cover is connected with the upper portion of the battery through resin 6, an adjusting area 7 for adjusting the battery is arranged in the middle of the left clamping block and the right clamping block, and the fastening bolt is in threaded connection with the left clamping block and the right clamping block to fix the left clamping block and the right clamping block. The lower parts of the left clamping block and the right clamping block are respectively provided with two semicircular grooves, and a positioning column 8 is arranged between the two semicircular grooves.
An in-situ observation method for a cycle process of a lithium ion battery comprises the following steps:
(1) and clamping the batteries with the lugs at the two ends in the middle of the battery clamp, and exposing the batteries with the diameter of 3mm from the upper end surface of the clamp. After the battery is fixed, the battery is cut flatly along the upper surface of the clamp by a hard alloy cutter, so that the upper surface of the battery is flat and smooth and serves as a battery circulation observation window;
(2) the epoxy resin and the curing agent solution are mixed according to the proportion of 8: 1. Coating a layer of epoxy resin solution with the thickness of 0.2-0.5mm, the length of 5mm and the width of 3mm on the ultra-white glass serving as an upper cover, standing for 10 minutes until the solution becomes a gel state, and tilting at 45 degrees without obvious flowing;
(3) and the gel-state upper cover which does not flow any more is attached to the battery circulation observation window in the middle, so that the observation window and the upper surface of the battery clamping tool are completely covered by the gel, and then the gel-state upper cover is kept under a certain pressure until the gel-state upper cover is completely cured. Completing the manufacture of an observation sample;
(4) the exposed lug of the battery is connected with formation equipment, and the device is matched with the formation charging and discharging equipment and a high-magnification optical microscope to observe the phenomena of lithium intercalation and lithium deintercalation of the negative electrode in the cycle process of the lithium battery, so that the visualization of the charging and discharging cycle process of the lithium ion battery is realized. The method has high controllability and simple operation, and is easy to convert into a conventional detection method. The formation charging and discharging equipment can be industrial universal formation equipment, and the high-magnification microscope can be a universal optical microscope.
The design adopts a high molecular polymer material and a mode of solidifying the observation profile of the battery to realize the in-situ optical observation of the cycle process of the lithium ion battery. Therefore, the problems of lithium precipitation on the surface of the battery and volatilization of the electrolyte can be well avoided. The method is simple to operate, easy to realize and capable of being well applied to cyclic in-situ observation of lithium ion batteries of different systems.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a frock is surveyd to battery cycle process normal position which characterized in that: comprises a left clamping block, a right clamping block, a fastening bolt and a glass upper cover; the upper portions of the left clamping block and the right clamping block are used for clamping a battery, the upper glass cover is connected with the upper portion of the battery through resin, an adjusting area for adjusting the battery is arranged in the middle of the left clamping block and the right clamping block, and the fastening bolt is in threaded connection with the left clamping block and the right clamping block to fix the left clamping block and the right clamping block.
2. The in-situ observation tool for the battery cycle process according to claim 1, wherein: the lower parts of the left clamping block and the right clamping block are respectively provided with two semicircular grooves, and a positioning column is arranged between the two semicircular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855647.7U CN211374542U (en) | 2019-10-31 | 2019-10-31 | Battery cycle process in-situ observation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855647.7U CN211374542U (en) | 2019-10-31 | 2019-10-31 | Battery cycle process in-situ observation tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211374542U true CN211374542U (en) | 2020-08-28 |
Family
ID=72154464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921855647.7U Active CN211374542U (en) | 2019-10-31 | 2019-10-31 | Battery cycle process in-situ observation tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211374542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967343A (en) * | 2019-10-31 | 2020-04-07 | 天津力神电池股份有限公司 | In-situ observation tool and method for battery cycle process |
-
2019
- 2019-10-31 CN CN201921855647.7U patent/CN211374542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967343A (en) * | 2019-10-31 | 2020-04-07 | 天津力神电池股份有限公司 | In-situ observation tool and method for battery cycle process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108427077A (en) | A kind of experimental method for analysing lithium using reference electrode monitoring cathode | |
| CN109031141B (en) | Lithium ion battery lithium analysis prediction method | |
| CN108872859A (en) | Detection method for battery lithium separation, battery management system and battery system | |
| US20130143115A1 (en) | Three-dimensional nanosized porous metal oxide electrode material of lithium ion battery and preparation method thereof | |
| CN112433159B (en) | Detection method for lithium ion battery graphite negative electrode lithium separation | |
| JP2020057585A (en) | Current collector, electrode sheet, and electrochemical device | |
| CN112557931B (en) | Device and method for detecting health degree of metal lithium battery | |
| CN113422115B (en) | Lithium ion battery cell, lithium ion battery cell preparation method and lithium analysis detection method | |
| CN110967343A (en) | In-situ observation tool and method for battery cycle process | |
| CN105845986A (en) | Formation method for improving cycle performance of lithium titanate battery | |
| CN211374542U (en) | Battery cycle process in-situ observation tool | |
| CN108511783A (en) | A kind of lithium battery | |
| CN113030138A (en) | All-solid-state battery reaction chamber for in-situ XRD and Raman tests and test method | |
| CN105355872A (en) | Preparation method for carbon-based lithium ion battery electrode material | |
| CN104821381A (en) | Preparation method of lithium ion battery diaphragm | |
| Hansen et al. | Size-dependent physicochemical and mechanical interactions in battery paste anodes of Si-microwires revealed by Fast-Fourier-Transform Impedance Spectroscopy | |
| CN105552339A (en) | Preparation method of silicon-carbon anode material for lithium ion battery and battery thereof | |
| CN105845985B (en) | A kind of gel polymer lithium ion battery and preparation method thereof and lamination device | |
| CN107170958B (en) | A kind of MEMS miniaturized solid-state lithium ion battery and preparation method thereof | |
| EP4243107A1 (en) | Housing and repair method therefor, related secondary battery, battery module, battery pack, and electric device | |
| CN104167563B (en) | A kind of composite solid electrolyte film, preparation method and application | |
| CN115421058A (en) | Method for judging ionic conductivity of lithium ion battery cathode binder | |
| CN107887650A (en) | The sealed clamping system and method that a kind of power lithium-ion battery is once melted into | |
| CN114843640A (en) | Lithium ion battery reference electrode and preparation method and application thereof | |
| CN113820251A (en) | Lithium ion battery pole piece electrolyte wettability detection device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230307 Address after: 300457 No. 38, Haitai South Road, Binhai high tech Industrial Development Zone (outer ring), Binhai New Area, Tianjin Patentee after: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: No.38, South Haitai Road, Binhai high tech Industrial Development Zone, Binhai New Area, Tianjin Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |