CN1713419A - Polar sheet coating detection of lithium ion battery and its detecting mould - Google Patents
Polar sheet coating detection of lithium ion battery and its detecting mould Download PDFInfo
- Publication number
- CN1713419A CN1713419A CNA2004100278028A CN200410027802A CN1713419A CN 1713419 A CN1713419 A CN 1713419A CN A2004100278028 A CNA2004100278028 A CN A2004100278028A CN 200410027802 A CN200410027802 A CN 200410027802A CN 1713419 A CN1713419 A CN 1713419A
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- CN
- China
- Prior art keywords
- pole piece
- standard
- shape
- sampling
- detection method
- 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.)
- Pending
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- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims description 26
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title description 7
- 229910001416 lithium ion Inorganic materials 0.000 title description 7
- 238000005070 sampling Methods 0.000 claims abstract description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 239000006257 cathode slurry Substances 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 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
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The method includes following steps: makes a standard pole piece with certain shape and size; on the dried pole piece, collects a sampling pole piece with certain shape and size; the sampling pole piece is compared with the standard pole piece, and according to result of comparison adjusts coating parameter. The mould for testing cell pole piece consists of upper mould and bottom mould. On the upper mould there is a upper mould plunger chip. On the bottom mould there is a bottom mould cavity corresponding to the upper mould plunger chip.
Description
Technical field
The present invention relates to secondary lithium battery pole piece coating detection method and detect mould.
Background technology
The coating detection method of existing secondary lithium battery electrode may further comprise the steps:
At first make the positive/negative plate corresponding, the anode and cathode slurry that mixes is coated in the Knife type vacuum circuit breaker with three-station switch aluminium foil as positive/negative plate, the tow sides of Copper Foil equably with certain surface density with battery size.To determine single two-sided surface density behind the coating according to parameters such as battery size capacity during coating coating slurry, be converted into the thickness of oven dry back pole piece, in the coating process of whole volume pole piece, carry out production monitoring with thickness measuring instruments such as micrometers.
There is following defective in this coating detection method: when the first inspection of coating, the wide cut pole piece that needs to be coated with slurry and oven dry severing in the drying tunnel of coating machine is taken out and is used miking thickness, to determine the coating machine relevant parameter, the pole piece with severing engages continuation coating more again again; When the coating sampling observation, before the rolling of coating machine drying tunnel tail end, use miking thickness, because miking can't be used in pole piece broad middle part, measure again after can only the pole piece middle part being dug out with blade.This shows the numerous and diverse and operation inconvenience of existing coating detection method operation.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, and propose a kind of effect that can detect coating intuitively, easy and simple to handle and electrodes of lithium-ion batteries coating detection method that detection efficiency is high.
Another object of the present invention is to propose a kind of detection mould that makes things convenient for detecting electrode coating effect.
Purpose of the present invention can reach by taking following technical measures:
A kind of secondary lithium battery pole piece coating detection method of the present invention comprises the steps: to make the standard pole piece with certain geometrical shape and size; On the pole piece of oven dry, gather sampling pole piece with certain geometrical shape and size; Sampling pole piece and the contrast of standard pole piece are adjusted painting parameter according to comparing result.Secondary lithium battery pole piece of the present invention detects mould and comprises upper die and lower die, and described patrix is provided with the patrix drift with definite shape; Described counterdie is provided with the corresponding lower mode cavity of shape and position with the patrix drift, and lower mode cavity cooperates with the patrix drift.
Compared with prior art, pole piece severing and joint when electrodes of lithium-ion batteries coating detection method of the present invention utilizes the mould sampling not need to carry out first the inspection simplify the operation, and improve detection efficiency.And the mould sampling can monitor the optional position of wide cut pole piece, and the weight ratio measurement thickness that directly takes by weighing the sampling pole piece reflects that the coating effect is more accurate.
Description of drawings
Fig. 1 is the standard pole piece schematic diagram of electrodes of lithium-ion batteries coating detection method of the present invention and mould thereof;
Fig. 2 is the pole piece coating sample graph of electrodes of lithium-ion batteries coating detection method of the present invention and mould thereof;
Fig. 3 is the die profile of electrodes of lithium-ion batteries coating detection method of the present invention and mould thereof.
Embodiment
Below in conjunction with accompanying drawing in detail specific embodiments of the invention are described in detail.
A kind of secondary lithium battery pole piece coating detection method comprises the steps: to make the standard pole piece with certain geometrical shape and size; On the pole piece of oven dry, gather the sampling pole piece identical with standard pole piece shape and size; Sampling pole piece and the contrast of standard pole piece are adjusted painting parameter according to comparing result.
Under the constant prerequisite of existing processes, designed a kind of detection mould of special use, this detection mould comprises upper die and lower die, and patrix is provided with the patrix drift with definite shape, counterdie is provided with the corresponding lower mode cavity of shape and position with the patrix drift, and lower mode cavity cooperates with the patrix drift.The shape of patrix drift and lower mode cavity is identical, can be all figures that circle, regular polygon, rectangle etc. can calculate geometric area.The shape of the shape and size decision pole piece of patrix drift.
In the process of sampling, detecting mould directly puts in the drying tunnel of coating machine, the electrode slice of oven dry is between the upper die and lower die of mould, use the punching press of exerting oneself in the optional position of wide cut pole piece of patrix drift, the pole piece of blanking certain geometrical shape, for example circle, regular polygon, rectangle etc. can calculate all figures of geometric area, can obtain the electrode slice sample identical with the shape and size of patrix drift at lower mode cavity.In all coating machine parameter adjustments good and be suitable for the battery surface density of a certain model after, utilize mould blanking on pole piece to be made into the standard pole piece, the weight of record standard pole piece and thickness parameter use in order to later stage contrast.
In the process of pole piece coating, use to detect mould and sample at any time, and will sample weighing weight, measure behind the thickness and the contrast of standard pole piece, see that difference is whether in certain permissible error scope, if overproofly will carry out the adjustment of coating machine parameter, till qualified.
Claims (7)
1. a secondary lithium battery pole piece coating detection method comprises the steps:
Making has the standard pole piece of certain geometrical shape and size;
On the pole piece of oven dry, gather sampling pole piece with certain geometrical shape and size;
Sampling pole piece and the contrast of standard pole piece are adjusted painting parameter according to comparing result.
2. the coating detection method of battery pole piece according to claim 1 is characterized in that:
The shape and size of described sampling pole piece are identical with the standard pole piece.
3. the coating detection method of battery pole piece according to claim 1 and 2 is characterized in that:
Described standard pole piece and sampling pole piece are gathered in drying tunnel.
4. the coating detection method of battery pole piece according to claim 1 and 2 is characterized in that:
Weight, the thickness parameter of record model when production standard and sheet compare with standard jig behind the pole piece weighing of will sampling, the measurement thickness.
5. the coating detection method of battery pole piece according to claim 1 is characterized in that:
The shape of described standard pole piece is one of circle, rectangle or regular polygon.
6. the detection mould of a secondary lithium battery pole piece comprises upper die and lower die, it is characterized in that: described patrix is provided with the patrix drift with definite shape;
Described counterdie is provided with the corresponding lower mode cavity of shape and position with the patrix drift, and lower mode cavity cooperates with the patrix drift.
7. the detection mould of secondary lithium battery pole piece according to claim 6 is characterized in that: the shape of described patrix drift and lower mode cavity is identical, can be one of circle, rectangle or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100278028A CN1713419A (en) | 2004-06-21 | 2004-06-21 | Polar sheet coating detection of lithium ion battery and its detecting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100278028A CN1713419A (en) | 2004-06-21 | 2004-06-21 | Polar sheet coating detection of lithium ion battery and its detecting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1713419A true CN1713419A (en) | 2005-12-28 |
Family
ID=35718931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100278028A Pending CN1713419A (en) | 2004-06-21 | 2004-06-21 | Polar sheet coating detection of lithium ion battery and its detecting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1713419A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315415B (en) * | 2007-05-30 | 2010-09-29 | 上海比亚迪有限公司 | Judgment method for quality of battery pole piece to be tested |
| CN101992174A (en) * | 2010-09-14 | 2011-03-30 | 天津力神电池股份有限公司 | Method for monitoring surface density of coating quantity of lithium ion battery pole piece |
| CN117073604A (en) * | 2023-10-18 | 2023-11-17 | 钛玛科（北京）工业科技有限公司 | Coating thickness measuring method, device, equipment and storage medium |
-
2004
- 2004-06-21 CN CNA2004100278028A patent/CN1713419A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315415B (en) * | 2007-05-30 | 2010-09-29 | 上海比亚迪有限公司 | Judgment method for quality of battery pole piece to be tested |
| CN101992174A (en) * | 2010-09-14 | 2011-03-30 | 天津力神电池股份有限公司 | Method for monitoring surface density of coating quantity of lithium ion battery pole piece |
| CN101992174B (en) * | 2010-09-14 | 2012-12-05 | 天津力神电池股份有限公司 | Method for monitoring surface density of coating quantity of lithium ion battery pole piece |
| CN117073604A (en) * | 2023-10-18 | 2023-11-17 | 钛玛科（北京）工业科技有限公司 | Coating thickness measuring method, device, equipment and storage medium |
| CN117073604B (en) * | 2023-10-18 | 2024-01-09 | 钛玛科（北京）工业科技有限公司 | Coating thickness measuring method, device, equipment and storage medium |
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| C12 | Rejection of a patent application after its publication | ||
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