CN206497191U - A kind of inside lithium ion cell battery heat test device - Google Patents
A kind of inside lithium ion cell battery heat test device Download PDFInfo
- Publication number
- CN206497191U CN206497191U CN201720154502.9U CN201720154502U CN206497191U CN 206497191 U CN206497191 U CN 206497191U CN 201720154502 U CN201720154502 U CN 201720154502U CN 206497191 U CN206497191 U CN 206497191U
- Authority
- CN
- China
- Prior art keywords
- thermistor
- wiring board
- wire
- test device
- lithium ion
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model is related to technical field of battery production, particularly discloses a kind of inside lithium ion cell battery heat test device.The inside lithium ion cell battery heat test device, including wiring board, it is characterised in that：The wiring board is two be set up in parallel, and double-circuit plate sandwiches fixed thermistor on inlaid hole, and thermistor is the thickness that 9 and its thickness are more than double-circuit plate；Inlaid hole on wiring board is 27, and has on thermistor position is installed and be provided with inlaid hole on only one of which wiring board；The termination of thermistor, which is connected with soldering on wire A, wiring board, wire B.Position of the whole test component in core bag can be adjusted flexibly in the utility model, and the temperature information of inside battery different depth is flexibly tested as needed.
Description
Technical field
The utility model is related to technical field of battery production, more particularly to a kind of inside lithium ion cell battery Thermal test dress
Put.
Background technology
Monomer lithium ion soft-package battery is made up of positive pole, negative pole, barrier film and electrolyte.The electricity of the charge and discharge process of battery
Chemical reaction is reversible reaction.By taking ternary material battery as an example：
2Li0.5CoO2+LiC6⇌2Li0.5+xCoO2+Li1-2xC6。
Reversible reaction occurs from left to right for discharge process, battery, produces reaction heat.Its main exothermic reaction includes：SEI films
Decompose, electrolyte decomposition, positive polar decomghtion, negative pole reacts with electrolyte, negative pole reacts with binding agent；The also presence of the internal resistance of cell
Also can heat production.The heat management system of current research battery, in order that temperature difference is smaller between each cell of battery pack, temperature
It is evenly distributed, for improving battery performance, improves charging and discharging capabilities and service life.
Present battery heat production is distributed application method, is to be measured using adiabatic accelerating calorimeter, uses finite element AnSys and stream
Mechanics software carries out simulation calculating.Under the conditions of adiabatic environment and isoperibol, battery surface is typically set to adiabatic condition,
The measured value of battery surface is compared with calculated value.
There are some researches show use finite element simulation calculation battery discharge heat distribution：（1）Battery discharge heat production initial temperature point
Cloth is more uniform, and the temperature difference occurs with increase battery surface and the inside battery of time, and maximum temperature appears in electric discharge latter stage battery
Middle part.（2）Battery surface temperature constantly increases with the increase of depth of discharge.The mechanism arrangement can be embodied directly in
The temperature test of inside battery, can more accurately reflect battery heat distribution, to solve the limitation that surface temperature measurement has
Property.
Inside battery heat production distribution is measured in order to accurate, as supplement, can use and directly enter trip temperature in inside battery
Measurement, directly obtains the temperature feedback of the very first time of inside battery reaction heat.Inside battery heat is avoided not shed in time
And the hysteresis quality error accumulated and produced, inside lithium ion cell battery heat test device is exactly Theoretical Design according to this.
The content of the invention
There is provided a kind of lithium simple in construction, detection efficiently and accurately in order to make up the deficiencies in the prior art for the utility model
Ion battery internal cell heat test device.
The utility model is achieved by the following technical solution：
A kind of inside lithium ion cell battery heat test device, including wiring board, it is characterised in that：The wiring board is simultaneously
Two of row setting, double-circuit plate sandwiches fixed thermistor on inlaid hole, and thermistor is 9 and its thickness is more than two-wire
The thickness of road plate；Inlaid hole on wiring board is 27, and had and on only one of which wiring board on thermistor position is installed
It is provided with inlaid hole；The termination of thermistor, which is connected with soldering on wire A, wiring board, wire B.
The utility model test device includes wiring board, thermistor and wire, and the material of wiring board is rotten for milk electrolyte
Plastics or alloy material are lost, or its outer layer applies other insulating materials such as insulating cement, the dielectric film of electrolyte resistance corrosion；And two-wire
The thickness of road plate and the quantity of thermistor and distribution can be adjusted according to actual needs.
More excellent technical scheme of the present utility model is：
One end of the thermistor is embedded in the inlaid hole of one of wiring board, and the other end is soldered to another line
On the plate of road, communicated with wiring board circuit.
The wire B removes outer layer insulation crust and does insulation processing, wire B length >=10mm；Insulation processing can be
The different phase of device assembling is carried out, and material can be the insulating cement and dielectric film of various electrolyte resistance corrosion.
Wiring board is veneer thickness 0.5-6.5mm pcb board or veneer thickness 0.1-0.3mm FPC plates；Thermistor
Material is semi-conducting material or transition metal material, inlays pore radius more than thermistor radius 0.1-0.6mm；Thermistor is excellent
NTC is first selected, its size is adjusted according to circuit plate thickness, the quantity of thermistor inlaid hole（>=3/d ㎡）According to line
Road board size changes and corrected；Thermistor can also be replaced with thermocouple.
The double-circuit plate does not install the inlaid hole of thermistor to punch state；In the premise for not influenceing normally to measure
Under, the thickness of device is smaller, and the inlaid hole punched is more, and the influence to cell reaction is just smaller, and test effect also can be more preferably；Line
Road board size and inlay pore size distribution and determined by the size of core bag, be i.e. circuit board size is greater than positive plate, for single-board testing
Device inlays hole number and aligns negative plate lithium ion exchanged influence key.
Two kinds of forms are distributed with double plates in inlaid hole：The first form is that inlaid hole is all distributed on one sheet, and
Corresponding thermistor is fixed on the related circuit current potential of another plate by soldering, and remaining inlaid hole can be beaten on double plates
Wear, to reduce the influence of the reaction to positive/negative plate；Second of form is the hole number of inlaying that two plates respectively distribute half, each plate
Another plate of inlaid hole correspondence have a current potential for not beating inlaid hole, current potential is used for soldering thermistor, to connect temperature-sensitive electricity
Remaining inlaid hole will be punched all on resistance and wiring board circuit, two plates, and two ways respectively has applicability.
The wire A and wire B are the metal materials such as copper, aluminium, and core is single or multicore, wire core diameter≤3mm, wire
Numbered after A and the pairing of corresponding thermistor, as the numbering of Data Collection, numbering can be numeral, letter and Chinese character etc..
Single-board testing device, technical requirements and cost are all higher, and wiring board material PCB and FPC may be selected, preferably FPC,
Thermistor will be embedded in inlaid hole, and thermistor thickness is more than wiring board 0.05-0.1mm per side, uses soldering connecting line
Road plate circuit, the hole number of inlaying of wiring board is wanted many and is evenly distributed.
The insulation position of wire B and wiring board soldering junction and thermistor soldering junction insulation processing with wire B
Reason is identical, finally can use erosion resisting insulation film to fix.
The beneficial effects of the utility model：
（1）Thermosensitive resistance measurement internal temperature of battery is inlayed using wiring board, does not influence battery to assemble and concora crush, reason is
The simple slab construction design of test component and flexible wire export design；
（2）The size design of wiring board and thermistor can become living with the size of main body of core bag and be adjusted flexibly；
（3）By adjusting inlaying circuit Board position and can flexibly testing the temperature of battery different parts for thermistor；
（4）Position of the whole test component in core bag can be adjusted flexibly, flexibly test inside battery is different as needed
The temperature information of depth.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is main structure diagram of the present utility model；
Fig. 2 is overlooking the structure diagram of the present utility model；
Fig. 3 is test mode schematic diagram of the present utility model.
In figure, 1 wire A, 2 wire B, 3 thermistors, 4 wiring boards, 5 inlaid holes, 6 core bags, 7 adhesive tapes.
Embodiment
The utility model be related to it is a kind of can accurately measure the device of internal temperature of battery, it is real below in conjunction with the utility model
Mode is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described implementation
Mode is only a part of embodiment of the present utility model, rather than whole embodiments.
Embodiment：
The utility model can accurately measure the device of internal temperature of battery there is provided a kind of, and test device is as shown in drawings.
Thermistor 3 is embedded in respective lines plate inlaid hole 5, the model of thermistor 3 selects NTC-5D-5, diameter d=5mm,
Thickness 2mm, the diameter d of inlaid hole 5=6mm, the size of thermistor 3 it is identical totally 9 be bumped into inlaid hole 5, soldering is connected behind alignment position
Wiring board 4, inlaid hole 5 is 27, and remaining 18 inlaid holes 5 are punched without double-layered circuit board herein；Thermistor 3 is being inlayed
The arrangement difference in hole 5 just represents the temperature of the corresponding different parts of surveyed pole piece.
The material of double-layered circuit board 4 is PCB-0.5mm, and two sandwich circuit boards 4 double team thermistor 3 is fixed on a plate and inlayed
In hole 5, thermistor 3 is soldered in another plate face, is communicated with the circuit of wiring board 4；The inlaid hole 5 of double-layered circuit board 4 is all
It is distributed on one sheet, and corresponding thermistor 3 is fixed on the related circuit current potential of another plate by soldering, remaining edge
Embedding hole 5 can be punched on double plates, to reduce the influence of the reaction to positive/negative plate；Double hardboards 4 sandwich it is fixed after thickness≤
2.5mm, thermistor 3 is higher by 5≤0.5mm of inlaid hole；If using soft veneer, soft veneer thickness≤0.3mm, thermistor 3 is high
Go out 5≤0.3mm of inlaid hole, we are without using soft veneer herein.
Wire B2 joints use the tunnel of soldering connection line printed line 4, and welding position is online with the selected institute of thermistor inlaid hole 5
Terminal soldering, wire B2 removes outer layer insulation crust to ensure being smoothed out for Soft Roll top side seal, for EV10AH Soft Rolls, wire
B2 length is already enough for >=10mm, i.e., this length is more than the package width at battery side packing.
Wire A1 be connection correspondence thermistor 3 connect wiring board circuit end, each wire A1 all with corresponding heat
The quick soldering of resistance 3 connects into path, records for convenience, can select, to wire A1 and the Unified number of thermistor 3, can make
With digital numbering No. 1, No. 2, No. 3 ....
Ensure each path of thermistor 3 and ensure that the overall leveling of the thickness of double-circuit plate 4 is consolidated, do not stayed between double hardboards
Space is target.
By taking Soft Roll EV10AH battery measurements as an example, thermistor 3 is arranged on thermistor inlaid hole 5, selection test temperature
The position of degree is the overall distribution in inside battery centre position.The folder of assembling mode selection twin-core bag 6 of battery core forces test device,
Here test device is in the centre position of twin-core bag 6, position when noting fixing two core bags 6 and test device assembly with terminal adhesive tape 7
Put correct, confirm that core bag 6 encases wiring board 4 completely, soldering polar ear is made battery core and enters shell, and top side seal process notes side
Nuditing wire B2 parts are only sealed during envelope, the outside thermistor 3 of wire A1 connections of tape insulation crust is hard herein to seal each with soft envelope
Once, soft envelope and hard envelope can be selected as the case may be certainly.The hot concora crush of battery is normally carried out, cell thickness increase about 3mm, cold
Hot concora crush parameter can be performed by internal EV10AH techniques, and battery is honored as a queen air-tightness to be examined eventually, is integrally imitated for soft-package battery
Fruit such as Fig. 1, then according to demand, battery types are made in selection, select qualified cell, it is possible to start to test.
Claims (6)
1. a kind of inside lithium ion cell battery heat test device, including wiring board（4）, it is characterised in that：The wiring board（4）
For two be set up in parallel, double-circuit plate（4）Sandwich fixed thermistor（3）In inlaid hole（5）On, thermistor（3）For 9
And its thickness is more than double-circuit plate（4）Thickness；Wiring board（4）On inlaid hole be 27, and install thermistor（3）Position
Put and only one of which wiring board（4）On be provided with inlaid hole（5）；Thermistor（3）Termination be connected with wire A（1）, line
Road plate（4）Upper soldering has wire B（2）.
2. inside lithium ion cell battery heat test device according to claim 1, it is characterised in that：The thermistor
（3）One end be embedded in one of wiring board（4）Inlaid hole（5）Interior, the other end is soldered to another wiring board（4）On,
With wiring board（4）Circuit is communicated.
3. inside lithium ion cell battery heat test device according to claim 1, it is characterised in that：The wire B（2）
Remove outer layer insulation crust and do insulation processing, wire B（2）Length >=10mm.
4. inside lithium ion cell battery heat test device according to claim 1, it is characterised in that：Wiring board（4）For
Veneer thickness 0.5-6.5mm pcb board or veneer thickness 0.1-0.3mm FPC plates；Thermistor（3）Material is semiconductor material
Material or transition metal material, inlaid hole（5）Radius is more than thermistor（3）Radius 0.1-0.6mm.
5. inside lithium ion cell battery heat test device according to claim 1, it is characterised in that：The double-circuit plate
（4）The inlaid hole of thermistor is not installed（5）For the state of punching.
6. inside lithium ion cell battery heat test device according to claim 1, it is characterised in that：The wire A（1）
With wire B（2）For metal material, core is single or multicore, wire core diameter≤3mm, wire A（1）With corresponding thermistor
（3）Numbered after pairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720154502.9U CN206497191U (en) | 2017-02-21 | 2017-02-21 | A kind of inside lithium ion cell battery heat test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720154502.9U CN206497191U (en) | 2017-02-21 | 2017-02-21 | A kind of inside lithium ion cell battery heat test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206497191U true CN206497191U (en) | 2017-09-15 |
Family
ID=59805219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720154502.9U Active CN206497191U (en) | 2017-02-21 | 2017-02-21 | A kind of inside lithium ion cell battery heat test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206497191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802395A (en) * | 2017-02-21 | 2017-06-06 | 山东玉皇新能源科技有限公司 | A kind of inside lithium ion cell battery heat test device |
-
2017
- 2017-02-21 CN CN201720154502.9U patent/CN206497191U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802395A (en) * | 2017-02-21 | 2017-06-06 | 山东玉皇新能源科技有限公司 | A kind of inside lithium ion cell battery heat test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106711512B (en) | Soft-package battery production method based on measurable internal temperature of battery device | |
| CN102116680B (en) | Insertion sheet for measuring internal temperature distribution of fuel cell | |
| Erhard et al. | Simulation and measurement of the current density distribution in lithium-ion batteries by a multi-tab cell approach | |
| CN102175339B (en) | Internal transient film heat-flow sensor of fuel cell | |
| Rieger et al. | A new method to model the thickness change of a commercial pouch cell during discharge | |
| CN102116679B (en) | Insertion piece for measuring transient heat flow density distribution in fuel cell | |
| JP2021536585A (en) | Battery pouch with sensor | |
| CN104185881A (en) | Battery with temperature adjustment function | |
| CN111525160B (en) | Fuel cell current density partition test system and method | |
| CN106802395A (en) | A kind of inside lithium ion cell battery heat test device | |
| CN108511832A (en) | A kind of lithium battery | |
| JP2010032349A (en) | Charging depth measurement mechanism and measurement method, and secondary battery including the measurement mechanism | |
| WO2011088325A1 (en) | Methods and systems for measuring state of charge | |
| CN104813419A (en) | Thermistor device | |
| CN109585907A (en) | Three electrode lithium ion batteries and preparation method thereof | |
| CN101334371A (en) | Evaluation method of separator for nonaqueous electrolyte battery, and nonaqueous electrolyte battery | |
| CN206497191U (en) | A kind of inside lithium ion cell battery heat test device | |
| CN202171511U (en) | Fuel cell internal transient heat-flow density distribution measurement inserting piece | |
| CN208902853U (en) | A kind of lithium ion battery working condition acquiring device | |
| CN206758597U (en) | Aluminum-shell battery based on measurable internal temperature of battery device | |
| CN210245669U (en) | Inside temperature rise measuring device of soft packet of lithium cell | |
| CN202216773U (en) | Sensor for transient thin film heat flow inside fuel cell | |
| CN202587596U (en) | Wiring substrate, cell stack and ambipolar secondary cell | |
| CN202109997U (en) | Fuel cell internal transient temperature distribution sensor | |
| CN104409756B (en) | Fuel cell internal humidity-heat flux density-current density distribution measurement insert |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |