CN107860602B - Pole piece high vacuum, high temperature moisture content sampler - Google Patents
Pole piece high vacuum, high temperature moisture content sampler Download PDFInfo
- Publication number
- CN107860602B CN107860602B CN201711351428.0A CN201711351428A CN107860602B CN 107860602 B CN107860602 B CN 107860602B CN 201711351428 A CN201711351428 A CN 201711351428A CN 107860602 B CN107860602 B CN 107860602B
- Authority
- CN
- China
- Prior art keywords
- pole piece
- layer
- cylinder
- aerogel
- stainless steel
- 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
- 238000004804 winding Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004964 aerogel Substances 0.000 claims description 37
- 229910001220 stainless steel Inorganic materials 0.000 claims description 28
- 239000010935 stainless steel Substances 0.000 claims description 28
- 238000001035 drying Methods 0.000 abstract description 22
- 238000001514 detection method Methods 0.000 abstract description 11
- 239000000523 sample Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- 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
Abstract
The invention provides a pole piece high-vacuum and high-temperature water content sampler which comprises a winding drum for accommodating a dried pole piece, wherein a fixing layer for fixing the accommodated pole piece, a placement layer for placing a detected pole piece sample, a heat conduction layer for enabling the pole piece sample to have the same thermal environment as the interior of the accommodated pole piece and a pressure layer for enabling the pole piece sample to have the same tension as the interior of the accommodated pole piece are sequentially sleeved outside the winding drum from inside to outside. The pole piece drying device is simple in structure, and can provide accurate pole piece drying data without taking out the dried pole piece roll. The invention is suitable for the drying detection of all the current pole pieces.
Description
Technical Field
The invention belongs to the field of battery pole piece detection, relates to a battery pole piece moisture content detection sampler, and in particular relates to a pole piece high-vacuum and high-temperature moisture content sampler.
Background
The battery pole piece is used as a pre-process material for battery production, and the water content of the battery pole piece directly influences the quality of the battery, so that the produced pole piece needs to be subjected to water removal treatment. The current process for removing water from the battery pole piece is to roll the pole piece with the thickness of about 120 micrometers into a pole roll with the diameter of 400-1200 mm, and then place the pole roll into a drying furnace for vacuum heating and drying so as to remove the water of the pole roll. In the stage of vacuum drying of the pole coil, the internal water content of the pole coil is required to be detected, but because the pole coil is of an integrated drum structure, an instrument probe for detecting the water content cannot extend into the pole coil for detection; meanwhile, because the environmental requirements on the pole coil are strict, the pole coil cannot be directly contacted with the atmosphere, otherwise, the pole coil cannot be completely abandoned before the drying and dewatering work. In addition, the volume and the quality of the pole coil are large, the pole coil cannot be damaged and sampled, and in summary, no good method for detecting the water content of the pole coil exists at present, so that whether the dried pole coil meets the requirement cannot be obtained.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pole piece high-vacuum and high-temperature water content sampler so as to realize that the water content of a pole coil can be measured without damaging the pole coil and ensuring the environment of the pole coil.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pole piece high vacuum, high temperature water content sampler, it includes:
the winding drum for containing the dried pole piece is sequentially sleeved with a fixing layer for fixing the contained pole piece, a placement layer for placing the detected pole piece sample, a heat conduction layer for enabling the pole piece sample to have the same thermal environment as the inside of the contained pole piece and a pressure layer for enabling the pole piece sample to have the same tension as the inside of the contained pole piece from inside to outside.
As a limitation of the present invention: the winding drum is cylindrical made of corrugated paper; the fixed layer is a first high-temperature-resistant and vacuum-resistant aerogel layer; the placement layer is a pole piece roll formed by winding the same pole piece as the stored pole piece, and a rectangular window for placing a pole piece sample is formed in the pole piece roll; the heat conducting layer is a high-temperature-resistant and vacuum-resistant second aerogel layer; the pressure layer is a stainless steel sleeve.
As a further limitation of the invention: the first aerogel layer is of an integrated cylindrical structure, the second aerogel layer is of a cylindrical structure formed by a first aerogel semi-cylinder and a second aerogel semi-cylinder which are matched in size, and the two aerogel semi-cylinders are detachably connected through a first connecting mechanism.
As a definition of the first connection mechanism in the present invention: the first connecting mechanism comprises a protrusion arranged on the first aerogel semi-cylinder and a groove which is arranged on the second aerogel semi-cylinder and matched with the protrusion.
As a definition of the pressure layer in the present invention: the pressure layer is of a cylindrical structure formed by a first stainless steel semi-cylinder and a second stainless steel semi-cylinder which are matched in size, and the two stainless steel semi-cylinders are detachably connected through a second connecting mechanism.
As a further definition of the second connection mechanism in the present invention: the second connecting mechanism comprises connecting lugs respectively arranged on the first stainless steel semi-cylinder and the second stainless steel semi-cylinder body, and the connecting lugs on the first stainless steel semi-cylinder are fixedly connected with the connecting lugs on the second stainless steel semi-cylinder through a bolt mechanism.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
(1) The pole piece sample and the pole piece to be dried are arranged in the same drying furnace together, and the pole piece sample is arranged between the fixed layer and the heat conduction layer by arranging the fixed layer and the heat conduction layer, so that the environment of the pole piece sample is simulated, the pole piece sample and the central part of the pole piece to be dried are provided with the same drying environment, and the pole piece sample and the central part of the pole piece to be dried are provided with the pressure layer, so that the pole piece sample and the central part of the pole piece to be dried are provided with the same pressure, namely, the same environmental conditions are ensured, and the measured data of the pole piece sample is more approximate to the data of the pole piece roll to be dried;
(2) According to the invention, the fixing layer and the heat conducting layer are both made of aerogel, and because the heat conductivity of the aerogel is one tenth of that of the pole piece, when the pole piece sample is positioned between two aerogel layers, the water data after water removal is closer to the data of the center part of the pole piece coil to be dried, so that the analysis result is more accurate;
(3) The heat conducting layer and the pressure layer are both of detachable structures, so that a pole piece sample can be taken out for moisture detection only by opening the pressure layer and the heat conducting layer, the detection of the moisture of the pole piece can be realized without taking the whole dried pole piece out of a vacuum high-temperature drying furnace, namely, whether the dried pole piece meets the requirement can be judged in the drying process, and the time waste and the resource waste of re-baking after the pole piece is taken out and the pole piece is unqualified after being measured to be dried are avoided.
In summary, the pole piece drying device has a simple structure, and can provide more accurate pole piece drying data without taking out the dried pole piece roll.
The invention is suitable for the drying detection of all the current pole pieces.
The present invention will be described in further detail with reference to specific examples.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
fig. 3 is a cross-sectional view A-A as shown in fig. 2.
In the figure: 1. the device comprises a winding drum, 2, a fixed layer, 3, a placement layer, 4, a heat conduction layer, 41, a first aerogel semi-cylinder, 42, a second aerogel semi-cylinder, 5, a pressure layer, 51, a first stainless steel semi-cylinder, 52, a second stainless steel semi-cylinder, 6, a rectangular window, 7, a connecting lug, 8, a bolt, 9, a groove, 10, a protrusion, 11 and a butterfly nut.
Detailed Description
High-vacuum and high-temperature water content sampler for pole piece of embodiment
The present embodiment, as shown in fig. 1 to 3, includes:
the winding drum 1, winding drum 1 is used for accomodating the dry pole piece, winding drum 1 outside from inside to outside suit in proper order fixed layer 2, place layer 3, heat conduction layer 4 to and pressure layer 5. Wherein, fixed layer 2 is used for fixedly accomodating the pole piece on reel 1, and place layer 3 and be used for placing the pole piece sample that is detected, heat conduction layer 4 and fixed layer 2 mutually support, make the pole piece sample have with the inside same thermal environment of pole piece of accomodating, pressure layer 5 makes the pole piece sample have with the inside same tension of pole piece of accomodating. That is, by arranging the fixing layer 2, the heat conduction layer 4 and the pressure layer 5, the pole piece pattern and the least easily dried faithful part of the pole piece to be dried have the same drying condition, so that the data of the pole piece pattern is more similar to the pole piece to be dried.
In order to achieve the above-mentioned purpose, the winding drum 1 in this embodiment is a cylinder made of corrugated paper, and the end of the winding drum 1 in this embodiment is provided with a bolt 8 for facilitating taking and placing in the drying furnace in this embodiment; the fixed layer 2 is a first high-temperature-resistant and vacuum-resistant aerogel layer; the placement layer 3 is a pole piece roll formed by winding the same pole piece as the dried pole piece, and a rectangular window 6 for placing a pole piece sample is formed in the pole piece roll; the heat conducting layer 4 is a high-temperature-resistant and vacuum-resistant second aerogel layer; the pressure layer 5 is a stainless steel sleeve.
The first aerogel layer is an integral cylindrical structure, and the second aerogel layer is a cylindrical structure formed by a first aerogel half cylinder 41 and a second aerogel half cylinder 42 which are matched in size, and the two aerogel half cylinders are detachably connected through a first connecting mechanism. The first connection mechanism includes a protrusion 10 disposed on the first aerogel semi-cylinder 41 and a groove 9 disposed on the second aerogel semi-cylinder 42 and matched with the protrusion 10, when in use, the protrusion 10 on the first aerogel semi-cylinder 41 is inserted into the corresponding groove 9, in order to ensure the fixing effect after installation, in this embodiment, two protrusions 10 and two grooves 9 are respectively disposed in fig. 1 and 2, and the two protrusions 10 are disposed along the length direction of the first aerogel semi-cylinder 41, and the two grooves 9 are disposed along the length direction of the second aerogel semi-cylinder 42.
In this embodiment, as shown in fig. 2 and 3, the pressure layer is a cylindrical structure formed by a first stainless steel semi-cylinder 51 and a second stainless steel semi-cylinder 52 with matched sizes, and the two stainless steel semi-cylinders are detachably connected through a second connecting mechanism. The second connecting mechanism in this embodiment includes connecting lugs 7 respectively disposed on the cylinder bodies of the first stainless steel semi-cylinder 51 and the second stainless steel semi-cylinder 52, the connecting lugs on the first stainless steel semi-cylinder 51 and the connecting lugs 7 on the second stainless steel semi-cylinder 52 are fixedly connected through a bolt mechanism, and in this embodiment, the connecting lugs 7 on the two stainless steel semi-cylinders are fixedly connected together by adopting a bolt mechanism formed by bolts and wing nuts 11.
The use principle of the embodiment is as follows: before use, the fixing layer 2, the placing layer 3, the pole piece pattern, the heat conducting layer 4 and the pressure layer 5 are already installed from inside to outside according to a set installation sequence, then the pole piece to be dried is wound on the winding drum 1, the winding drum 1 wound with the pole piece to be dried is sleeved in the fixing layer 2, and finally the whole device is placed in a drying furnace to be dried. In the drying process, if the dried pole piece is required to be detected to be qualified, the whole device is not required to be taken out, but the pressure layer 5 and the heat conduction layer 4 are directly detached, the pole piece pattern is taken out for moisture detection (because the heat conductivity of aerogel is one tenth of that of the pole piece, the drying environment of the pole piece pattern between the fixed layer 2 and the heat conduction layer 4 is similar to that of the middle part of the pole piece wound on the winding drum 1, the drying result of the pole piece pattern can directly reflect the drying effect of the dried pole piece), and if the moisture detection of the pole piece pattern is qualified, the dried pole piece wound on the winding drum 1 is proved to meet the requirement, and the drying can be stopped; if the moisture detection of the pole piece pattern is not qualified, the embodiment is installed, and drying is continued until the moisture detection of the pole piece pattern is qualified.
Claims (3)
1. A pole piece high vacuum, high temperature moisture content sampler, its characterized in that: the device comprises a winding drum (1) for accommodating a dried pole piece, wherein a fixing layer (2) for fixing the accommodated pole piece, a placement layer (3) for placing a detected pole piece sample, a heat conduction layer (4) for enabling the pole piece sample to have the same thermal environment as the inside of the accommodated pole piece and a pressure layer (5) for enabling the pole piece sample to have the same tension as the inside of the accommodated pole piece are sequentially sleeved outside the winding drum (1) from inside to outside;
the winding drum (1) is cylindrical made of corrugated paper; the fixing layer (2) is a first high-temperature-resistant and vacuum-resistant aerogel layer; the placement layer (3) is a pole piece roll formed by winding the same pole piece as the stored pole piece, and a rectangular window (6) for placing a pole piece sample is formed in the pole piece roll; the heat conducting layer (4) is a high-temperature-resistant and vacuum-resistant second aerogel layer; the pressure layer (5) is a stainless steel sleeve;
the first aerogel layer is of an integrated cylindrical structure, the second aerogel layer is of a cylindrical structure formed by a first aerogel half cylinder (41) and a second aerogel half cylinder (42) which are matched in size, and the first aerogel half cylinder (41) and the second aerogel half cylinder (42) are detachably connected through a first connecting mechanism; the pressure layer (5) is of a cylindrical structure formed by a first stainless steel semi-cylinder (51) and a second stainless steel semi-cylinder (52) which are matched in size, and the first stainless steel semi-cylinder (51) and the second stainless steel semi-cylinder (52) are detachably connected through a second connecting mechanism.
2. The pole piece high vacuum, high temperature water content sampler of claim 1, wherein: the first connecting mechanism comprises a protrusion (10) arranged on the first aerogel semi-cylinder (41) and a groove (9) which is arranged on the second aerogel semi-cylinder (42) and matched with the protrusion (10).
3. The pole piece high vacuum, high temperature water content sampler according to claim 1 or 2, characterized in that: the second connecting mechanism comprises connecting lugs (7) which are respectively arranged on the cylinder bodies of the first stainless steel semi-cylinder (51) and the second stainless steel semi-cylinder (52), and the connecting lugs (7) on the first stainless steel semi-cylinder (51) and the connecting lugs (7) on the second stainless steel semi-cylinder (52) are fixedly connected through a bolt mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351428.0A CN107860602B (en) | 2017-12-15 | 2017-12-15 | Pole piece high vacuum, high temperature moisture content sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351428.0A CN107860602B (en) | 2017-12-15 | 2017-12-15 | Pole piece high vacuum, high temperature moisture content sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107860602A CN107860602A (en) | 2018-03-30 |
| CN107860602B true CN107860602B (en) | 2024-03-22 |
Family
ID=61706805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711351428.0A Active CN107860602B (en) | 2017-12-15 | 2017-12-15 | Pole piece high vacuum, high temperature moisture content sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107860602B (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147555A (en) * | 1977-04-21 | 1979-04-03 | Owens-Corning Fiberglas Corporation | Size compositions for glass fiber reinforced cementitious products |
| JPH1144931A (en) * | 1997-07-25 | 1999-02-16 | Fuji Photo Film Co Ltd | Paper tube for photosensitive material |
| JP2003257495A (en) * | 2002-03-05 | 2003-09-12 | Toshiba Corp | Non-aqueous electrolyte secondary battery |
| JP2010067450A (en) * | 2008-09-10 | 2010-03-25 | Toyota Motor Corp | Nonaqueous electrolyte secondary battery |
| CN102288723A (en) * | 2011-07-04 | 2011-12-21 | 力神迈尔斯动力电池系统有限公司 | Method for testing content of moisture in pole piece |
| CN102830035A (en) * | 2012-08-15 | 2012-12-19 | 四川鑫唐新能源科技有限公司 | Determination method for trace moisture content in positive electrode and negative electrode pole pieces of lithium battery |
| CN104330439A (en) * | 2014-08-12 | 2015-02-04 | 中航锂电（洛阳）有限公司 | Device and method for detecting moisture content of lithium battery pole piece |
| CN204807337U (en) * | 2015-07-14 | 2015-11-25 | 宁德时代新能源科技有限公司 | Sampler is used in test of electricity core water content |
| JP2015220044A (en) * | 2014-05-16 | 2015-12-07 | 株式会社日立製作所 | Cylindrical secondary battery |
| CN105445347A (en) * | 2015-12-05 | 2016-03-30 | 天津大学 | Vertical electrochemical battery device for in-situ photodynamic measurement |
| JP2016091790A (en) * | 2014-11-04 | 2016-05-23 | 住友電気工業株式会社 | Manufacturing management method for solid cable, and testing apparatus for use in manufacturing management method for solid cable |
| CN105911115A (en) * | 2016-04-15 | 2016-08-31 | 合肥国轩高科动力能源有限公司 | Moisture detection device for lithium battery pole pieces and detection method thereof |
| CN205581043U (en) * | 2016-04-15 | 2016-09-14 | 合肥国轩高科动力能源有限公司 | Detection apparatus for be used for testing lithium - ion battery pole pieces moisture |
| CN205985220U (en) * | 2016-08-23 | 2017-02-22 | 浙江金开来新能源科技有限公司 | Electrode take -up device |
| CN106596422A (en) * | 2016-10-25 | 2017-04-26 | 浙江大学 | Detection and dehydration integrated closed-loop drying system and method |
| CN206163605U (en) * | 2016-11-07 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Pole piece drying device that colds pressing |
| CN206431793U (en) * | 2017-01-19 | 2017-08-22 | 中国公路工程咨询集团有限公司 | High Side Slope of Highway disaster monitoring and early-warning system |
| CN107377637A (en) * | 2017-09-21 | 2017-11-24 | 邢台海裕锂能电池设备有限公司 | Battery pole piece rolling device with elongation measurement function |
| CN107388740A (en) * | 2017-07-19 | 2017-11-24 | 河北工业大学 | A kind of lithium battery pole slice rolls up vacuum bakeout drying production line |
| CN207528476U (en) * | 2017-12-15 | 2018-06-22 | 般若涅利（北京）装备技术有限公司 | A kind of pole piece high vacuum, high temperature moisture content sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8404388B2 (en) * | 2005-08-09 | 2013-03-26 | Polyplus Battery Company | Compliant seal structures for protected active metal anodes |
-
2017
- 2017-12-15 CN CN201711351428.0A patent/CN107860602B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147555A (en) * | 1977-04-21 | 1979-04-03 | Owens-Corning Fiberglas Corporation | Size compositions for glass fiber reinforced cementitious products |
| JPH1144931A (en) * | 1997-07-25 | 1999-02-16 | Fuji Photo Film Co Ltd | Paper tube for photosensitive material |
| JP2003257495A (en) * | 2002-03-05 | 2003-09-12 | Toshiba Corp | Non-aqueous electrolyte secondary battery |
| JP2010067450A (en) * | 2008-09-10 | 2010-03-25 | Toyota Motor Corp | Nonaqueous electrolyte secondary battery |
| CN102288723A (en) * | 2011-07-04 | 2011-12-21 | 力神迈尔斯动力电池系统有限公司 | Method for testing content of moisture in pole piece |
| CN102830035A (en) * | 2012-08-15 | 2012-12-19 | 四川鑫唐新能源科技有限公司 | Determination method for trace moisture content in positive electrode and negative electrode pole pieces of lithium battery |
| JP2015220044A (en) * | 2014-05-16 | 2015-12-07 | 株式会社日立製作所 | Cylindrical secondary battery |
| CN104330439A (en) * | 2014-08-12 | 2015-02-04 | 中航锂电（洛阳）有限公司 | Device and method for detecting moisture content of lithium battery pole piece |
| JP2016091790A (en) * | 2014-11-04 | 2016-05-23 | 住友電気工業株式会社 | Manufacturing management method for solid cable, and testing apparatus for use in manufacturing management method for solid cable |
| CN204807337U (en) * | 2015-07-14 | 2015-11-25 | 宁德时代新能源科技有限公司 | Sampler is used in test of electricity core water content |
| CN105445347A (en) * | 2015-12-05 | 2016-03-30 | 天津大学 | Vertical electrochemical battery device for in-situ photodynamic measurement |
| CN105911115A (en) * | 2016-04-15 | 2016-08-31 | 合肥国轩高科动力能源有限公司 | Moisture detection device for lithium battery pole pieces and detection method thereof |
| CN205581043U (en) * | 2016-04-15 | 2016-09-14 | 合肥国轩高科动力能源有限公司 | Detection apparatus for be used for testing lithium - ion battery pole pieces moisture |
| CN205985220U (en) * | 2016-08-23 | 2017-02-22 | 浙江金开来新能源科技有限公司 | Electrode take -up device |
| CN106596422A (en) * | 2016-10-25 | 2017-04-26 | 浙江大学 | Detection and dehydration integrated closed-loop drying system and method |
| CN206163605U (en) * | 2016-11-07 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Pole piece drying device that colds pressing |
| CN206431793U (en) * | 2017-01-19 | 2017-08-22 | 中国公路工程咨询集团有限公司 | High Side Slope of Highway disaster monitoring and early-warning system |
| CN107388740A (en) * | 2017-07-19 | 2017-11-24 | 河北工业大学 | A kind of lithium battery pole slice rolls up vacuum bakeout drying production line |
| CN107377637A (en) * | 2017-09-21 | 2017-11-24 | 邢台海裕锂能电池设备有限公司 | Battery pole piece rolling device with elongation measurement function |
| CN207528476U (en) * | 2017-12-15 | 2018-06-22 | 般若涅利（北京）装备技术有限公司 | A kind of pole piece high vacuum, high temperature moisture content sampler |
Non-Patent Citations (3)
| Title |
|---|
| LEAK-SEEKER渗漏寻检仪应用技术;赵武 等;《中国建筑防水》(第05期);第27-29页 * |
| PULSED NUCLEAR-MAGNETIC-RESONANCE INSTRUMENT FOR SOIL-WATER CONTENT MEASUREMENT-SENSOR CONFIGURATIONS;PAETZOLD RF 等;《SOIL SCIENCE SOCIETY OF AMERICA JOURNAL》;第51卷(第02期);第287-290页 * |
| 锂离子软包装电池变形研究;张正德 等;《中国优秀硕士学位论文全文数据库》(第第07期期);第C042-1129页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107860602A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2013538997A5 (en) | Leakage detection device, duct coating device, duct, method using leakage detection device | |
| CN101696995B (en) | Measurement system of space charge of coaxial high-voltage direct current plastic cable | |
| CN201203404Y (en) | Concrete deformation test device | |
| CN107860602B (en) | Pole piece high vacuum, high temperature moisture content sampler | |
| CN105388074A (en) | In-situ temperature loading device for neutron diffraction | |
| CN103033706A (en) | Method utilizing isothermy relaxation current method for evaluating insulated overhead conductor | |
| US6120664A (en) | Oxygen analyzer | |
| Zhong et al. | Study on the influence mechanism of ambient humidity on the temperature rise of decay‐like composite insulators | |
| CN103698030B (en) | A kind of stuck-module for installing dew end formula thermocouple | |
| WO2020145563A1 (en) | Sample concentrator tube having heat-resistant planar heating element adhered thereto, analysis device comprising same, and analysis method using same | |
| CN107064239A (en) | A kind of method that transformer insulating paper conductance property is analyzed based on differential charge | |
| WO2023216535A1 (en) | Audio signal acquisition apparatus | |
| CN207528476U (en) | A kind of pole piece high vacuum, high temperature moisture content sampler | |
| CN106370892A (en) | Internal-insertion external-clamping type current test wire clamp | |
| CN111122647A (en) | Method for testing heat conductivity of lithium ion battery pole piece | |
| CN209264821U (en) | A kind of Portable insulation material surface conductivity measuring apparatus | |
| CN206056838U (en) | A kind of test device of electric connector contact pin contact engaging and separating force | |
| CN209784254U (en) | thermal desorption device and mass spectrometry system | |
| CN208026553U (en) | A kind of experimental rig suitable for homogeneous metal thin-walled straight tube fatigue test | |
| CN209525390U (en) | A kind of device of nondestructive measurement conductive film square resistance | |
| CN207472945U (en) | A kind of all insulation voltage electronic formula sensor | |
| CN215931892U (en) | Test tube heating device and drug trace analyzer | |
| CN203788243U (en) | Photovoltaic module test box | |
| CN113155317A (en) | temperature measuring device of ta dust explosion-proof equipment | |
| CN101364698B (en) | Force adjustable electric cable plug detection tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |