CN103217136B - A kind of cell thickness measurement apparatus - Google Patents
A kind of cell thickness measurement apparatus Download PDFInfo
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- CN103217136B CN103217136B CN201310094583.4A CN201310094583A CN103217136B CN 103217136 B CN103217136 B CN 103217136B CN 201310094583 A CN201310094583 A CN 201310094583A CN 103217136 B CN103217136 B CN 103217136B
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- removable cover
- draw point
- magnet
- support
- measurement apparatus
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Abstract
The invention belongs to technical field of lithium ion, more particularly to a kind of cell thickness measurement apparatus, including base, support, removable cover, standard station, guide rod, magnet and draw point, support, standard station and guide rod may be contained within base, and removable cover is sheathed on guide rod, and removable cover is parallel with base, magnet is arranged at support, and magnet is located at the top of removable cover, and magnet is provided with guide channel, draw point is arranged in guide channel, and the lower edge of draw point is contacted with removable cover.Contact by draw point with removable cover, then by the difference in height before and after precise height measuring instrument measurement draw point so as to obtain the maximum swelling thickness of battery, thus accurately obtain the maximum swelling thickness point of battery under the condition of high temperature, time of measuring, temperature and the artificial error to thickness measure for judging to introduce are eliminated, measurement result is more scientific accurate.
Description
Technical field
The invention belongs to technical field of lithium ion, more particularly to a kind of cell thickness measurement apparatus.
Background technology
Lithium ion battery is as a kind of advanced secondary power supply, with energy density is high, open-circuit voltage is high, have extended cycle life
And the advantages of environmental protection, it has also become a kind of current application secondary cell the most universal, mobile phone is widely used in, notebook computer is put down
In terms of plate computer, electric tool.
Lithium ion battery has a series of very strict testing standards, and in client in many specifications of battery, battery
High-temperature storage performance is a very important index, and high temperature storage test bag contains two classes：One class is that storage 6 is completely filled at 85 DEG C
Hour；Another kind of is that battery completely fills storage 21 days at 60 DEG C.Two kinds of tests are required to survey initial 3.85V thickness, completely fill 4.20V
Or 4.30V thickness, the thickness at the end of storage time at high temperature after the original thickness of (85 DEG C/60 DEG C) and cooling.
In the measurement of several thickness to more than, the thickness that battery is measured under high temperature is a difficult point, because in the state of heat
Cell expansion is more severe when (85 DEG C or 60 DEG C), once cooling thickness drastically diminishes, and actually needs the thickness of measurement exactly
Cell expansion obtains the thickness of that most severe point.The mode currently taken is again with accurate thick after battery is taken out from baking oven
Instrument (being accurate to micron) thickness measuring is spent, rapid drop in temperature after being taken out because of battery is very big to thickness effect, therefore provides at 1 minute
It is interior to test completion, but actually since following reason measured value is only referred to, fluctuation is quite big：1）, the battery time of coming out of the stove can not
Accurate control, cell thickness change is the most violent in 1 minute, and survey in 30 seconds and 40 seconds is all different；2）If, measurement battery
Quantity is more, and the state of temperature and last state of temperature surveyed of first survey have had very big difference；3）, measurement result hold
It is vulnerable to weather influence, temperature is lower, and the battery temperature range of decrease is faster；4）, in accurate thickness gauge measurement process, battery temperature is rapid
Instrument metal surface, thickness are transmitted to while acute variation, registration rather unstable, obtain which type of data is completely dependent on survey
The judgement of examination personnel, human error is very big；5）And any fine measuring instrument can not be used in hot environment, otherwise not
Only test inaccurate, can also damage instrument.
The content of the invention
It is an object of the invention to：In view of the shortcomings of the prior art, a kind of cell thickness measurement apparatus is provided, the device
Available for the accurate maximum swelling thickness point for obtaining battery under the condition of high temperature, eliminate time of measuring, temperature and artificial judgement and draw
The error to thickness measure entered, measurement result is more scientific accurate.
In order to achieve the above object, the present invention is adopted the following technical scheme that：A kind of cell thickness measurement apparatus, including bottom
Seat, support, removable cover, standard station, guide rod, magnet and draw point, the support, the standard station and the guide rod may be contained within
The base, the removable cover is sheathed on the guide rod, and the removable cover is parallel with the base, and the magnet is set
The support is placed in, the magnet is located at the top of the removable cover, and the magnet is provided with guide channel, and the draw point is worn
In the guide channel, and the lower edge of the draw point is contacted with the removable cover.
The upper surface of the base is provided with insulation material layer.
The material of the removable cover is insulating materials.
The removable cover is provided with four circular holes, and the guide rod is provided with four, described in four circular holes and four
Guide rod is slidably matched.
The support includes vertical supports and horizontal support, and the horizontal support is fixedly connected with the vertical supports.
The length of the draw point is less than 30mm, and diameter is less than 0.01mm, and weight is less than 0.1g.
The draw point is perpendicular to the removable cover.
The beneficial effects of the present invention are：The present invention include base, support, removable cover, standard station, guide rod, magnet and
Draw point, support, standard station and guide rod are arranged at base, and removable cover is sheathed on guide rod, and removable cover is parallel with base, magnetic
Iron is arranged at support, and magnet is located at the top of removable cover, and magnet is provided with guide channel, and draw point is arranged in guide channel, and steel
The lower edge of pin is contacted with removable cover.Contact by draw point with removable cover, then by precise height measuring instrument measurement steel
Difference in height before and after pin is thus accurate to obtain the maximum swollen of battery under the condition of high temperature so as to obtain the maximum swelling thickness of battery
Swollen thickness point, eliminates time of measuring, temperature and the artificial error to thickness measure for judging to introduce, the more scientific standard of measurement result
Really.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Top view when Fig. 2 works for Fig. 1 removable cover.
Embodiment
The present invention and its advantage are described in detail with reference to the accompanying drawings and detailed description, but the present invention
Embodiment not limited to this.
As shown in Figure 1, 2, a kind of cell thickness measurement apparatus, including base 1, support 2, removable cover 3, standard station 4, lead
Bar 5, magnet 6 and draw point 7, support 2, standard station 4 and guide rod 5 may be contained within base 1, and standard station 4 has certain altitude, surface light
It is sliding, used as the datum plane of elevation carrection, removable cover 3 is sheathed on guide rod 5, and removable cover 3 is parallel with base 1, magnetic
Iron 6 is arranged at support 2, and magnet 6 is located at the top of removable cover 3, and magnet 6 is provided with guide channel（It is not shown）, guide channel is used for
Draw point 7 is placed, draw point 7 is arranged in guide channel, and the lower edge of draw point 7 is contacted with removable cover 3.
It is preferred that, the upper surface of base 1 is provided with insulation material layer, is mainly used in preventing battery short circuit.
It is preferred that, the material of removable cover 3 is insulating materials.
Removable cover 3 is provided with four circular holes 11, and guide rod 5 is provided with four, and four circular holes 11 are slided with four guide rods 5 matches somebody with somebody
Close, the diameter of guide rod 5 is slightly less than the diameter of circular hole 11, and removable cover 3 is parallel with the surface of battery 8, can be along guide rod 5 flat
The plane of row battery 8 is freely up and down vertically moved.
It is preferred that, support 2 includes vertical supports 9 and horizontal support 10, and horizontal support 10 is fixedly connected with vertical supports 9,
Horizontal support 10 plays fixed magnet 6, away from the height adjustable of removable cover 3.
It is preferred that, the length of draw point 7 is less than 30mm, diameter and is less than 0.01mm, weight less than 0.1g, and draw point 7 requires quality
It is relatively light, it is easily dynamic by pushing for very little, so as to be moved up along guide channel.
Draw point 7 is perpendicular to removable cover 3, and draw point 7 is general stainless pin, is adsorbed in the guide channel on magnet 6, in electricity
When pond expands against the rising of draw point 7, the present apparatus is taken out after the completion of storage, so that it may find what draw point 7 was moved up using height-gauge
Distance.
The present invention the course of work be：Removable cover 3 is lifted, battery 8 is kept flat and is placed on base 1, activity is gently put down
Cover plate 3, then with precise height measuring instrument measurement removable cover 3 and the difference in height of standard station 4, it is designated as T1；Magnet 6 is adjusted with living
The height of dynamic cover plate 3, is well placed the position of draw point 7, is located in guide channel, and under removable cover 3, the needle point of draw point 7
Along away from the gentle touchdown of removable cover 3, whole device is then put into progress high temperature storage experiment in baking oven.
After high temperature storage terminates, by the careful taking-up from baking oven of whole device, it should be noted that keep the position of draw point 7 not change,
At this moment because of cell expansion, removable cover 3 is promoted to move up, so as to promote draw point 7 upwards, the present position of draw point 7 is that battery is swollen
The peak reached during swollen；After device cooling, keep the position of draw point 7 constant, careful adjustment removable cover 3 and draw point
7 lower edges are just contacted, and then fix removable cover 3, then measure removable cover 3 and standard station 4 with precise height measuring instrument
Difference in height T2.
T2-T1 is exactly the maximum that the thickness that is expanded during whole high temperature storage of battery 8 was increased up to.Relative to
Existing measurement apparatus, the present invention takes a little accurate, and not by the time, temperature influence at utmost ensures the authenticities of data and accurate
Property, while device simple and sensitive, with low cost.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in above-mentioned embodiment, every those skilled in the art exist
Made any conspicuously improved, replacement or modification belong to protection scope of the present invention on the basis of the present invention.This
Outside, although having used some specific terms in this specification, these terms merely for convenience of description, not to the present invention
Constitute any limitation.
Claims (7)
1. a kind of cell thickness measurement apparatus, including base, support, removable cover, standard station, guide rod, magnet and draw point, it is special
Levy and be：The support, the standard station and the guide rod may be contained within the base, and the removable cover is sheathed on described lead
Bar, and the removable cover is parallel with the base, and the magnet is arranged at the support, and the magnet is located at the activity
The top of cover plate, the magnet is provided with guide channel, and the draw point is arranged in the guide channel, and the lower edge of the draw point with
The removable cover contact.
2. cell thickness measurement apparatus according to claim 1, it is characterised in that：The upper surface of the base is provided with absolutely
Edge material layer.
3. cell thickness measurement apparatus according to claim 2, it is characterised in that：The material of the removable cover is insulation
Material.
4. cell thickness measurement apparatus according to claim 3, it is characterised in that：The removable cover is provided with four circles
Hole, the guide rod is provided with four, and four circular holes are slidably matched with four guide rods.
5. cell thickness measurement apparatus according to claim 1, it is characterised in that：The support includes vertical supports and horizontal stroke
To support, the horizontal support is fixedly connected with the vertical supports.
6. cell thickness measurement apparatus according to claim 1, it is characterised in that：The length of the draw point is less than 30mm,
Diameter is less than 0.01mm, and weight is less than 0.1g.
7. cell thickness measurement apparatus according to claim 6, it is characterised in that：The draw point is perpendicular to the removable cover
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094583.4A CN103217136B (en) | 2013-03-22 | 2013-03-22 | A kind of cell thickness measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094583.4A CN103217136B (en) | 2013-03-22 | 2013-03-22 | A kind of cell thickness measurement apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103217136A CN103217136A (en) | 2013-07-24 |
| CN103217136B true CN103217136B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310094583.4A Active CN103217136B (en) | 2013-03-22 | 2013-03-22 | A kind of cell thickness measurement apparatus |
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| Country | Link |
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| CN (1) | CN103217136B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816920A (en) * | 2017-09-30 | 2018-03-20 | 中船澄西船舶修造有限公司 | Asphalt tanker liquid goods tank expands measurement frock |
| CN108225197B (en) * | 2018-01-20 | 2020-08-25 | 东莞领丰电子有限公司 | Thickness measurement smelting tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201053869Y (en) * | 2007-06-14 | 2008-04-30 | 宝山钢铁股份有限公司 | Steel slag expansion detection device |
| CN101487837A (en) * | 2009-02-13 | 2009-07-22 | 太原理工大学 | Tester for changing soft rock expandability by electro-chemistry |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203627A (en) * | 1996-01-24 | 1997-08-05 | M S Tec:Kk | Constant pressure thickness-measuring device |
| CN100334427C (en) * | 2006-02-20 | 2007-08-29 | 南京航空航天大学 | Automatic measurement device and method for colloid layer of bitumite |
| CN201016701Y (en) * | 2007-03-08 | 2008-02-06 | 天津力神电池股份有限公司 | Apparatus for measuring thickness of battery |
| DE102007026700A1 (en) * | 2007-05-31 | 2008-12-11 | Solarwatt Ag | Coating thickness gauge and layer thickness measurement method for tinned metal strips as electrical connectors |
| CN201233218Y (en) * | 2008-06-30 | 2009-05-06 | 深圳市比克电池有限公司 | Battery thickness measuring instrument |
| JP5444762B2 (en) * | 2008-07-02 | 2014-03-19 | トヨタ自動車株式会社 | Pressure measuring device and thickness measuring device |
| CN102519338A (en) * | 2011-12-30 | 2012-06-27 | 天津力神电池股份有限公司 | Device for measuring thickness of battery |
-
2013
- 2013-03-22 CN CN201310094583.4A patent/CN103217136B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201053869Y (en) * | 2007-06-14 | 2008-04-30 | 宝山钢铁股份有限公司 | Steel slag expansion detection device |
| CN101487837A (en) * | 2009-02-13 | 2009-07-22 | 太原理工大学 | Tester for changing soft rock expandability by electro-chemistry |
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| Publication number | Publication date |
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| CN103217136A (en) | 2013-07-24 |
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