CN205981346U - A tester for detecting lithium ion battery inner space volume - Google Patents
A tester for detecting lithium ion battery inner space volume Download PDFInfo
- Publication number
- CN205981346U CN205981346U CN201620888679.7U CN201620888679U CN205981346U CN 205981346 U CN205981346 U CN 205981346U CN 201620888679 U CN201620888679 U CN 201620888679U CN 205981346 U CN205981346 U CN 205981346U
- Authority
- CN
- China
- Prior art keywords
- dial drum
- lithium ion
- tester
- volume
- threaded
- 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
- Secondary Cells (AREA)
Abstract
The utility model discloses a tester for detecting lithium ion battery inner space volume, its include the dial drum with locate the dial drum inside and with dial drum section of thick bamboo wall sealing contact's rubber buffer, dial drum top movable sleeve is equipped with a rotatory section of thick bamboo, the threaded pole of threaded connection is passed through at the center of a rotatory section of thick bamboo, the bottom of threaded rod with rubber buffer fixed connection, the bottom of dial drum is passed through the trachea and is connected with the toper rubber tube of fixing on the support frame, be connected with vacuum pressure meter on the toper rubber tube. This device simple structure, convenient operation and strong adaptability are through changing the method that the volume comes the measuring pressure, calculating the volume of battery inner space to carry out correction error, improvement test result through pressurization and evacuation dual mode.
Description
Technical field
This utility model is related to technical field of lithium ion and in particular to one kind is used for detecting that inside lithium ion cell is empty
Between volume tester.
Background technology
Lithium ion battery is a kind of secondary rechargeable battery, and it is made up of the positive and negative electrode and electrolyte being located at enclosure interior,
Rely primarily on lithium ion and move work between a positive electrode and a negative electrode.In charge and discharge process, lithium ion is between two electrodes
Come and go embedded and deintercalation；During charging, lithium ion, from positive pole deintercalation, embeds negative pole through electrolyte, and negative pole is in rich lithium state；Put
Then contrary when electric.After finishing assembly, the size of lithium-ion battery shell inner space is directly connected to electrolysis to lithium ion battery
The demand of liquid measure, so electrolyte needs enclosure interior space is measured before fluid injection, to improve battery to greatest extent
Capacity and reduce wasted space.
Utility model content
The purpose of this utility model is to provide a kind of tester for detecting inside lithium ion cell spatial volume, with
Improve battery capacity to greatest extent and reduce the wasted space of inside battery.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of tester for detecting inside lithium ion cell spatial volume, including dial drum with inside dial drum
And the rubber stopper in sealing contact with dial drum barrel, described dial drum top movable sleeve is provided with rotating cylinder, in described rotating cylinder
The heart has been threaded connection threaded rod, and the bottom of described threaded rod is fixedly connected with described rubber stopper；The bottom of described dial drum
It is connected with the cone rubber pipe being fixed on bracing frame by trachea, described cone rubber pipe is connected with pressure vacuum gauge.
Scheme further, support frame as described above includes the upper mounting plate of fixing taper rubber tube, and the two ends of described upper mounting plate are respectively
It is erected at and offers on externally threaded pillar, by fixing nut, they are connected.
Further scheme, described dial drum is transparent, being respectively provided on two sides with of its outer surface count from the bottom up and from
On the graduation mark that down counts.
Scheme further, the top periphery of described dial drum is equipped with a ring annular groove, and the bottom card of described rotating cylinder sets
Freely rotatable in cannelure.
During test, the port of cone rubber pipe is inserted in the liquid injection hole of lithium ion battery and seal, by changing gas
Volume（Increase or reduce）To calculate the volume in inside battery space.And be all in constant temperature in the test process of tester
Carry out under degree.
This utility model utilizes The Ideal-Gas Equation PV/T=C, at a constant temperature equity of gas volume and pressure
Approximate corresponding relation P1V1/T=P2V2/T, by changing the method that volume measures pressure, calculates the body in inside battery space
Long-pending.And by pressurization and evacuation two ways correction error.So method of testing of the present utility model is convenient and swift, operation letter
Single, it is that the design research and development of lithium ion provide data refer.
This utility model passes through rubber stopper and dial drum sealing composition syringe-like structure, drives rubber stopper by threaded rod
Ascending, descending in dial drum, due to being threaded between threaded rod and rotating cylinder, can achieve threaded rod by rotating rotating cylinder
Rise or fall, easy to operate.In addition, the upper mounting plate of fixed cone rubber can to adjust it by fixing nut vertically high
Degree, so that cone rubber can insert the liquid injection hole of lithium ion battery, makes this device adapt to the lithium ion battery of various models, fits
Ying Xingqiang.
Brief description
For the ease of it will be appreciated by those skilled in the art that being further described to this utility model below in conjunction with the accompanying drawings.
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model use state schematic diagram.
In figure：1- dial drum, 2- threaded rod, 3- rubber stopper, 4- trachea, 5- cannelure, 6- rotating cylinder, 7- base, 8- props up
Post, 9- fixing nut, 10- upper mounting plate, 11- cone rubber, 12- pressure vacuum gauge, 13- lithium ion battery.
Specific embodiment
Embodiment 1：
As shown in figure 1, a kind of tester for detecting inside lithium ion cell spatial volume, including dial drum 1 with set
In dial drum 1 is internal and the rubber stopper 3 in sealing contact with dial drum 1 barrel, described dial drum 1 top movable sleeve is provided with rotating cylinder
6, described rotating cylinder 6 centrally through being threaded with threaded rod 2, the bottom of described threaded rod 2 is fixing with described rubber stopper 3 even
Connect；The bottom of described dial drum 1 is connected with the cone rubber pipe 11 being fixed on bracing frame by trachea 4, described cone rubber
Pressure vacuum gauge 12 is connected with pipe 11.
Further scheme, support frame as described above includes the upper mounting plate 10 of fixing taper rubber tube 11, and the two of described upper mounting plate 10
End is respectively erected in and offers on externally threaded pillar 8, by fixing nut 9, they is connected.
Further scheme, described dial drum 1 is transparent, being respectively provided on two sides with of its outer surface count from the bottom up and from
On the graduation mark that down counts.
Scheme further, the top periphery of described dial drum 1 is equipped with a ring annular groove 5, the bottom card of described rotating cylinder 6
It is located at freely rotatable in cannelure 5.
Its test process is as follows, inserts the port of cone rubber pipe 11 in the liquid injection hole of lithium ion battery 13 simultaneously during test
Sealing forms seal（As shown in Figure 2）：
（1）Setup parameter：At a constant temperature, if a normal atmosphere is P, if inside lithium ion cell space to be measured
Volume be V；Adjustment rubber stopper 3 is located at 0 graduation mark of dial drum 1 bottom, and set the internal effective volume of dial drum 1 as
Vb, the volume from rubber stopper 3 bottom to cone rubber pipe 11 port are Va, and Vb ＞ Va+V；
（2）The position of adjustment upper mounting plate 10, the port of cone rubber pipe 11 is inserted in the liquid injection hole of lithium ion battery 13
And seal；
（3）Threaded rod 2 is made to drive rubber stopper rising to be evacuated by rotating rotating cylinder 6, when aobvious on pressure vacuum gauge 12
When to show pressure be P/2, stop volume V1 that rubber stopper 3 rises and records rubber stopper 3 rising；
（4）Temperature constant, according to The Ideal-Gas Equation（Va+V）P/T=（Va+V+V1）P/2T, draws V=V1-Va；
（5）Extract cone rubber pipe, adjustment rubber stopper is located at the top of dial drum, then by the end of cone rubber pipe
Mouthful insertion lithium ion battery liquid injection hole in and seal；
（6）So that rubber stopper decline is pressurizeed by rotating rotating cylinder, when showing on pressure vacuum gauge that pressure is 2P, stop
Only rubber stopper（3）Decline and record volume V2 of rubber stopper rising；
（7）Temperature constant, according to The Ideal-Gas Equation（Va+V+Vb）P/T=2P（Va+V+Vb-V2）/ T, draws V=
2V2-Va-Vb；
（8）Because time of day is had differences with perfect condition, take step（4）、（7）The meansigma methodss of the Vb value of gained are
The actual volume in inside lithium ion cell space.
Above content is only the structure to this utility model tester and method of testing example and explanation, affiliated
Those skilled in the art make various modifications or supplement or using similar side to described specific embodiment
Formula substitutes, and without departing from structure of the present utility model or surmount scope defined in the claims, all should belong to this
The protection domain of utility model.
Claims (4)
1. a kind of tester for detecting inside lithium ion cell spatial volume it is characterised in that：Including dial drum（1）With set
In dial drum（1）Inside and dial drum（1）Barrel rubber stopper in sealing contact（3）, described dial drum（1）Top is slidingly connected
There is rotating cylinder（6）, described rotating cylinder（6）Centrally through being threaded with threaded rod（2）, described threaded rod（2）Bottom with
Described rubber stopper（3）It is fixedly connected；Described dial drum（1）Bottom pass through trachea（4）With the taper rubber being fixed on bracing frame
Sebific duct（11）Connect, described cone rubber pipe（11）On be connected with pressure vacuum gauge（12）.
2. tester according to claim 1 it is characterised in that：Support frame as described above includes fixing taper rubber tube（11）'s
Upper mounting plate（10）, described upper mounting plate（10）Two ends be respectively erected in and offer externally threaded pillar（8）On, by fixing nut
（9）They are connected.
3. tester according to claim 1 it is characterised in that：Described dial drum（1）For transparent, the two of its outer surface
Side is respectively equipped with the graduation mark counting from the bottom up and counting from top to bottom.
4. tester according to claim 1 it is characterised in that：Described dial drum（1）Top periphery be equipped with a circle
Cannelure（5）, described rotating cylinder（6）Bottom be fastened on cannelure（5）Interior freely rotatable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888679.7U CN205981346U (en) | 2016-08-17 | 2016-08-17 | A tester for detecting lithium ion battery inner space volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888679.7U CN205981346U (en) | 2016-08-17 | 2016-08-17 | A tester for detecting lithium ion battery inner space volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205981346U true CN205981346U (en) | 2017-02-22 |
Family
ID=58031007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620888679.7U Active CN205981346U (en) | 2016-08-17 | 2016-08-17 | A tester for detecting lithium ion battery inner space volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205981346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092245A (en) * | 2016-08-17 | 2016-11-09 | 合肥国轩高科动力能源有限公司 | A kind of tester for detecting inside lithium ion cell spatial volume and method of testing thereof |
-
2016
- 2016-08-17 CN CN201620888679.7U patent/CN205981346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092245A (en) * | 2016-08-17 | 2016-11-09 | 合肥国轩高科动力能源有限公司 | A kind of tester for detecting inside lithium ion cell spatial volume and method of testing thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106092245A (en) | A kind of tester for detecting inside lithium ion cell spatial volume and method of testing thereof | |
| CN105510174B (en) | Apparatus and method for detecting gas inside battery | |
| CN105388427B (en) | A kind of frock and monitoring method for being used to monitor pole group pressure change in battery charge and discharge process | |
| CN101281984A (en) | Method and apparatus for detecting inner pressure of lithium ion battery | |
| CN209182480U (en) | A kind of lithium ion battery residual life detector | |
| CN204333138U (en) | A kind of lithium ion battery with hard shell changes into and gas production determinator | |
| CN103674768A (en) | Gas production amount detection method and measuring device during lithium ion battery formation | |
| CN205981346U (en) | A tester for detecting lithium ion battery inner space volume | |
| CN109974655A (en) | A kind of apparatus and method for of online no pressure detection lithium battery silicon-carbon cathode pole piece expansion | |
| CN107271317B (en) | The method for testing rare earth new power negative electrode tab expansion rate | |
| CN109962305B (en) | Lithium battery internal space verification method | |
| CN111122036A (en) | Battery cell circulating expansion detection method and detection device thereof | |
| CN203274835U (en) | Lead-acid storage battery gas collection device | |
| CN210347710U (en) | Lithium cell charge-discharge detects and uses frock | |
| CN107271316B (en) | Method for testing liquid absorption rate of rare earth new power supply cell | |
| CN208091771U (en) | A kind of Pharmaceutical Analysis micro quantitative determination sampling save set | |
| CN216348930U (en) | Lithium ion battery formation gas production detection device | |
| CN204067484U (en) | A kind of storage battery acidification acid amount verifying attachment | |
| CN205843874U (en) | A kind of lithium battery interior pressure test device | |
| CN204314434U (en) | Motor detection apparatus | |
| CN205264523U (en) | Ultracapacitor system's priming device | |
| CN201348602Y (en) | Carbon rod air permeability testing device | |
| CN210664935U (en) | Lithium battery pressing test equipment | |
| CN202903612U (en) | Portable negative pressure detector | |
| CN206146492U (en) | Lithium ion laminate polymer battery gas production testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |