CN205828528U - A kind of lithium ion battery heated at constant temperature priming device - Google Patents
A kind of lithium ion battery heated at constant temperature priming device Download PDFInfo
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- CN205828528U CN205828528U CN201620546743.3U CN201620546743U CN205828528U CN 205828528 U CN205828528 U CN 205828528U CN 201620546743 U CN201620546743 U CN 201620546743U CN 205828528 U CN205828528 U CN 205828528U
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- 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
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a kind of lithium ion battery heated at constant temperature priming device, it includes the first electrolyte heating tank, the second electrolyte heating tank, electrolyte constant temperature buffer tank, liquid injection system and lithium battery positioning fixture；First electrolyte heating tank one end is connected with the first liquid flowing valve, and the other end is connected with the inlet on electrolyte constant temperature buffer tank sidewall bottom electrolyte constant temperature buffer tank by the first electrolyte valve and is connected with liquid injection system by the 3rd electrolyte valve；Using this utility model to carry out lithium battery fluid injection and can promote the precision of fluid injection and the stability of reservoir quantity, reservoir quantity is not affected by ambient temperature, so that fluid injection process capability promotes, improves production efficiency and the utilization rate of material；Meanwhile, after heating electrolyte, the viscosity of electrolyte can be reduced, improve mobility and the wetting property of electrolyte, improve fluid injection efficiency, improve the wetting property of electrolyte.
Description
Technical field
This utility model relates to lithium ion battery processing and manufacturing technical field, especially relates to a kind of lithium ion battery constant temperature
Heating priming device.
Background technology
In prior art, soft package lithium ion power battery liquid injection process at room temperature completes, and its weak point exists
In: under room ambient conditions, variations in temperature is big, and minimum temperature is 20 DEG C, and maximum temperature is 30 DEG C, the highest；In bigger temperature
In constant interval, electrolyte volume can vary with temperature and change, i.e. density of electrolyte can produce bigger fluctuation change with temperature
Change；For convenience of metering, filling machine of the prior art uses the mode of volume metering to replace weighing, therefore at actual injection process
In, because of the fluctuation of the lithium-ion battery electrolytes density that variations in temperature produces, lithium ion battery liquid injection amount liquid can be caused huge
Great fluctuation process, the yields of fluid injection operation in this case reduces, also reduces the production efficiency of lithium ion battery simultaneously.
Chinese patent publication No. CN101882674A, date of publication is on November 10th, 2010, which discloses a kind of lithium
Ion battery priming device and technique thereof, this disclosure of the invention lithium-ion battery liquid injection device, it includes vacuum (-tight) housing, base, very
Empty cover, together with being tightly disposed in by dense block between base, vacuum (-tight) housing is provided with vacuum tube and normal pressure siphunculus, vacuum tube
Upper connection has vacuum meter, is additionally provided with the first electromagnetic valve between vacuum meter and vacuum tube, and normal pressure siphunculus is provided with the second battery valve,
It is additionally provided with high-voltage tube on vacuum (-tight) housing, high-voltage tube sets gradually Pressure gauge, the second electromagnetic valve, also discloses lithium-ion electric simultaneously
Pond liquid injection process, is placed on vacuum (-tight) housing by the lithium ion battery putting into electrolyte, is evacuated down to 0.06 MPa, keeps 10 seconds,
Return to normal atmosphere (An), in vacuum (-tight) housing, inject the chlorine of 0.4 MPa, and keep 1 minute, return to normal atmosphere (An), then
It is evacuated down to 0.02 MPa, after returning to normal pressure, reason battery is taken out；This invention visible is mainly atmosphere when fluid injection and true
Reciprocal of duty cycle aspect improves quickening battery Electolyte-absorptive to prior art, improves fluid injection efficiency, but do not control lithium from
Reservoir quantity in sub-battery, exists and is likely to be due to variations in temperature, and density of electrolyte changes, and injects in lithium ion battery and is electrolysed
There is larger difference in liquid quality, the problem reducing yields.
Summary of the invention
For solving the problems referred to above, this utility model provides one and can use the most continuously, and can avoid note
The lithium ion battery heated at constant temperature priming device of liquid measure deviation.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of lithium ion battery heated at constant temperature priming device, including shell, the first electrolyte heating tank, the second electrolyte add
Hot tank, electrolyte constant temperature buffer tank, liquid injection system and lithium ion battery positioning fixture；First electrolyte heating tank one end and first
Liquid flowing valve is connected, and the other end is connected with the inlet on electrolyte constant temperature buffer tank sidewall by the first electrolyte valve
Connect；Second electrolyte heating tank one end is connected with the second liquid flowing valve, and the other end passes through the second electrolyte valve and electrolyte
Inlet on constant temperature buffer tank sidewall is connected；By the 3rd electrolyte valve and fluid injection system bottom electrolyte constant temperature buffer tank
System is connected；Lithium ion battery positioning fixture is located at below liquid injection system, does not contacts with liquid injection system.
As preferably, the first inlet and the bottom of the second inlet on electrolyte constant temperature buffer tank sidewall are higher than electrolysis
Liquid constant temperature buffer tank tank bottoms 2～3cm.
This lithium ion battery heated at constant temperature priming device uses the design of double electrolyte heating tank, it is possible to use two electrolysis
Liquid heating tank heats electrolyte in turn and injects the method for electrolyte constant temperature buffer tank and realize the continuous behaviour of electrolyte heating, fluid injection
Make, improve the fluid injection efficiency of lithium ion battery, improve production efficiency；It is positioned at the lithium ion battery locating clip below liquid injection system
Tool, the lithium ion battery in operating in order to fixing fluid injection, make injection process more smooth out reliably.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 20～30 DEG C, and closes the
One liquid flowing valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 5～10 minutes, electrolyte temperature is 30～40 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 30～40 DEG C；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 30～40 DEG C, keeps constant temperature.
In injection process, in the first electrolyte heating tank and the second electrolyte heating tank are electrolyte constant temperature buffer tank in turn
Electrolyte after constantly offer is heated, it is ensured that the continuous fluid injection of lithium ion battery works, improves the efficiency of injection process；
On the one hand heated constant temperature fluid injection reduces the viscosity of electrolyte, improve the mobility of electrolyte, on the other hand, it is to avoid because of electrolyte
The excessive change of density and cause the deviation of fluid injection weight；Improve the qualification rate of fluid injection operation, improve production efficiency simultaneously
Utilization rate with electrolyte.
As preferably, after step 3 completes, open the first liquid flowing valve, in the first electrolyte heating tank, inject electrolysis
Liquid, closes the first liquid flowing valve after completing, heating electrolyte is to 30～40 DEG C, and keeps constant temperature.
This utility model electrolyte filling method is carried out at a constant temperature, and reservoir quantity is not affected by ambient temperature, so that note
Liquid process capability promotes, and improves production efficiency and the utilization rate of material, on the other hand, after heating electrolyte, can reduce electrolysis
The viscosity of liquid, improves mobility and the wetting property of electrolyte, improves fluid injection efficiency, improve the wellability of electrolyte simultaneously
Energy.
As preferably, in the first electrolyte heating tank and the second electrolyte heating tank, the volume of electrolyte is less than electrolyte
The 2/3 of heating tank volume.
Keep the electrolyte volume in electrolyte heating tank to be not more than the 2/3 of electrolyte heating tank volume, be possible to prevent
In heating process, because density of electrolyte changes, volume becomes spilling that is big and that cause.
As preferably, by first the first electrolyte heating tank fluid injection, rear second electrolyte heating tank fluid injection, then the first electrolysis
The circulation fluid injection mode of liquid heating tank fluid injection is continuous fluid injection in electrolyte constant temperature buffer tank.
Therefore, this utility model has the advantages that
(1) fluid injection precision is improved；
(2) improve the stability of fluid injection operation, improve production efficiency；
(3) wetting property of electrolyte is improved.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram of lithium ion battery heated at constant temperature priming device in this utility model；
In figure: 1, the first liquid flowing valve, the 2, first electrolyte heating tank, the 3, first electrolyte valve, the 4, second electrolyte
Heating tank, the 5, second liquid flowing valve, the 6, second electrolyte valve, 7, electrolyte constant temperature buffer tank, the 8, the 3rd electrolyte valve, 9,
Liquid injection system, 10, lithium ion battery, 11, lithium ion battery positioning fixture.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical solution of the utility model is further described.
Embodiment 1
A kind of lithium ion battery heated at constant temperature priming device, including shell, first electrolyte heating tank the 2, second electrolyte
Heating tank 4, electrolyte constant temperature buffer tank 7, liquid injection system 9 and lithium ion battery positioning fixture 11；First electrolyte heating tank one
End is connected with the first liquid flowing valve 1, and the other end passes through the first electrolyte valve 3 and entering on electrolyte constant temperature buffer tank sidewall
Liquid mouth is connected；Second electrolyte heating tank one end is connected with the second liquid flowing valve 5, and the other end passes through the second electrolyte valve
6 are connected with the inlet on electrolyte constant temperature buffer tank sidewall；By the 3rd electrolyte valve bottom electrolyte constant temperature buffer tank
Door 8 is connected with liquid injection system；Lithium ion battery positioning fixture is located at below liquid injection system, does not contacts with liquid injection system.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 20 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 5 minutes, electrolyte temperature is 30 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 30 DEG C；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 30 DEG C, keeps constant temperature.
Embodiment 2
Lithium ion battery heated at constant temperature priming device is with embodiment 1.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 25 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 7 minutes, electrolyte temperature is 35 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 35 DEG C；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 35 DEG C, keeps constant temperature.
Embodiment 3
Lithium ion battery heated at constant temperature priming device is with embodiment 1.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 30 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 10 minutes, electrolyte temperature is 40 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 40 DEG C；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 40 DEG C, keeps constant temperature.
Embodiment 4
A kind of lithium ion battery heated at constant temperature priming device, including shell, first electrolyte heating tank the 2, second electrolyte
Heating tank 4, electrolyte constant temperature buffer tank 7, liquid injection system 9 and lithium ion battery positioning fixture 11；First electrolyte heating tank one
End is connected with the first liquid flowing valve 1, and the other end passes through the first electrolyte valve 3 and entering on electrolyte constant temperature buffer tank sidewall
Liquid mouth is connected；Second electrolyte heating tank one end is connected with the second liquid flowing valve 5, and the other end passes through the second electrolyte valve
6 are connected with the inlet on electrolyte constant temperature buffer tank sidewall；By the 3rd electrolyte valve bottom electrolyte constant temperature buffer tank
Door 8 is connected with liquid injection system；Lithium ion battery positioning fixture is located at below liquid injection system, does not contacts with liquid injection system；Electrolysis
The first inlet and the bottom of the second inlet on liquid constant temperature buffer tank sidewall are higher than the electrolyte tank bottoms 2cm of constant temperature buffer tank.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 20 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 5 minutes, electrolyte temperature is 30 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 30 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 30 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 30 DEG C, keeps constant temperature.
Embodiment 5
Lithium ion battery heated at constant temperature priming device is with embodiment 4.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 25 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 8 minutes, electrolyte temperature is 35 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 35 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 35 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 35 DEG C, keeps constant temperature.
Embodiment 6
Lithium ion battery heated at constant temperature priming device is with embodiment 4.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 30 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 10 minutes, electrolyte temperature is 40 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 40 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 40 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 40 DEG C, keeps constant temperature.
Embodiment 7
A kind of lithium ion battery heated at constant temperature priming device, including shell, first electrolyte heating tank the 2, second electrolyte
Heating tank 4, electrolyte constant temperature buffer tank 7, liquid injection system 9 and lithium ion battery positioning fixture 11；First electrolyte heating tank one
End is connected with the first liquid flowing valve 1, and the other end passes through the first electrolyte valve 3 and entering on electrolyte constant temperature buffer tank sidewall
Liquid mouth is connected；Second electrolyte heating tank one end is connected with the second liquid flowing valve 5, and the other end passes through the second electrolyte valve
6 are connected with the inlet on electrolyte constant temperature buffer tank sidewall；By the 3rd electrolyte valve bottom electrolyte constant temperature buffer tank
Door 8 is connected with liquid injection system；Lithium ion battery positioning fixture is located at below liquid injection system, does not contacts with liquid injection system；Electrolysis
The first inlet and the bottom of the second inlet on liquid constant temperature buffer tank sidewall are higher than the electrolyte tank bottoms 3cm of constant temperature buffer tank.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 20 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 5 minutes, electrolyte temperature is 30 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 30 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 30 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 30 DEG C, keeps constant temperature；In first electrolyte heating tank and the second electrolyte heating tank, the volume of electrolyte is less than electrolysis
The 2/3 of liquid heating tank volume.
Embodiment 8
Lithium ion battery heated at constant temperature priming device is with embodiment 7.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 25 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 8 minutes, electrolyte temperature is 35 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 35 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 35 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 35 DEG C, keeps constant temperature；In first electrolyte heating tank and the second electrolyte heating tank, the volume of electrolyte is less than electrolysis
The 2/3 of liquid heating tank volume.
Embodiment 9
Lithium ion battery heated at constant temperature priming device is with embodiment 7.
A kind of lithium ion battery heated at constant temperature electrolyte filling method, comprises the following steps:
One, dehumidifying before fluid injection, make dew point temperature in priming device less than-40 DEG C, temperature is 30 DEG C, and closes first and enter
Fluid valve, the second liquid flowing valve, the first electrolyte valve, the second electrolyte valve and the 3rd electrolyte valve；
Two, open, in the first electrolyte heating tank and the second electrolyte heating tank, inject electrolyte, after completing, close the
One liquid flowing valve and the second liquid flowing valve, heating electrolyte 10 minutes, electrolyte temperature is 40 DEG C, keeps constant temperature；
Three, open the first electrolyte valve, the electrolyte after heat treated is delivered to electricity from the first electrolyte heating tank
Solving liquid constant temperature buffer tank, close the first electrolyte valve after having carried, keeping electrolyte temperature is 40 DEG C；After completing, open
First liquid flowing valve, injects electrolyte in the first electrolyte heating tank, closes the first liquid flowing valve after completing, heat electrolyte
To 40 DEG C, and keep constant temperature；
Four, open the 3rd electrolyte valve, in lithium ion battery, inject electricity by liquid injection system according to design reservoir quantity
Solve liquid, complete fluid injection；
Wherein, in injection process, when electrolyte constant temperature caching tank level is reduced to inlet position, open the second electrolysis
Fluid valve, is delivered to electrolyte in electrolyte constant temperature buffer tank from the second electrolyte heating tank, turns off the second electrolyte valve
Door, opens the second liquid flowing valve and is delivered to by electrolyte in the second electrolyte heating tank, close the second liquid flowing valve, add thermal electrolysis
Liquid, to 40 DEG C, keeps constant temperature；In first electrolyte heating tank and the second electrolyte heating tank, the volume of electrolyte is less than electrolysis
The 2/3 of liquid heating tank volume.
Effect test: compare prior art and the deviation of reservoir quantity in the electrolyte filling method in this utility model, use this reality
Carrying out at constant temperature 37 DEG C with the test of novel electrolyte filling method, matched group i.e. uses the test of prior art fluid injection at 20～30 DEG C
Carry out under room temperature changing environment.
Table 1 is the reservoir quantity deviation data obtained by use this utility model electrolyte filling method:
Table 2 is the reservoir quantity deviation data obtained by the existing electrolyte filling method of use:
As can be seen from the above table, under identical fluid injection parameter, owing to matched group carries out fluid injection under the room temperature of change, when
During variations in temperature, electrolyte volume has greatly changed, and electrolyte volume expands along with the rising of temperature, matched group fluid injection
Time room temperature 20 DEG C with 30 DEG C time fluctuation, the reservoir quantity extreme difference caused because of electrolyte change in volume reaches 5.19g, surpasses far away
Go out design to want；And use electrolyte filling method in this utility model, under 37 DEG C of constant temperature, reservoir quantity extreme difference is 0.49g, according to this reality
Being greatly improved fluid injection precision with novel fluid injection, simultaneously under heating, electrolyte viscosity reduces, and improves the mobility of electrolyte,
Thus improve production efficiency；Additionally be conducive to the wettability of electrolyte under high temperature, accelerate follow-up wetting efficiency.
Claims (2)
1. a lithium ion battery heated at constant temperature priming device, including shell, it is characterised in that: also include the first electrolyte heating
Tank (2), the second electrolyte heating tank (4), electrolyte constant temperature buffer tank (7), liquid injection system (9) and lithium ion battery positioning fixture
(11)；First electrolyte heating tank one end is connected with the first liquid flowing valve (1), and the other end passes through the first electrolyte valve (3)
It is connected with the inlet on electrolyte constant temperature buffer tank sidewall；Second electrolyte heating tank one end and the second liquid flowing valve (5)
Being connected, the other end is connected with the inlet on electrolyte constant temperature buffer tank sidewall by the second electrolyte valve (6)；Electrolysis
It is connected with liquid injection system by the 3rd electrolyte valve (8) bottom liquid constant temperature buffer tank；Lithium ion battery positioning fixture is located at
Below liquid injection system, do not contact with liquid injection system.
A kind of lithium ion battery heated at constant temperature priming device the most according to claim 1, it is characterised in that: described electrolyte
The first inlet and the bottom of the second inlet on constant temperature buffer tank sidewall are higher than electrolyte constant temperature buffer tank tank bottoms 2～3cm.
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| CN201620546743.3U CN205828528U (en) | 2016-06-06 | 2016-06-06 | A kind of lithium ion battery heated at constant temperature priming device |
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| CN201620546743.3U CN205828528U (en) | 2016-06-06 | 2016-06-06 | A kind of lithium ion battery heated at constant temperature priming device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784591A (en) * | 2017-01-18 | 2017-05-31 | 夏三星 | A kind of battery electrolyte filling apparatus |
| CN107464911A (en) * | 2016-06-06 | 2017-12-12 | 万向二三股份公司 | A kind of lithium ion battery heated at constant temperature priming device and its method |
| CN110131884A (en) * | 2019-05-08 | 2019-08-16 | 上海汇平新能源有限公司 | It is electrolysed liquor heating method and device |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107464911A (en) * | 2016-06-06 | 2017-12-12 | 万向二三股份公司 | A kind of lithium ion battery heated at constant temperature priming device and its method |
| CN107464911B (en) * | 2016-06-06 | 2024-01-09 | 万向一二三股份公司 | Constant-temperature heating liquid injection device and method for lithium ion battery |
| CN106784591A (en) * | 2017-01-18 | 2017-05-31 | 夏三星 | A kind of battery electrolyte filling apparatus |
| CN106784591B (en) * | 2017-01-18 | 2023-09-01 | 夏三星 | Battery electrolyte filling device |
| CN110131884A (en) * | 2019-05-08 | 2019-08-16 | 上海汇平新能源有限公司 | It is electrolysed liquor heating method and device |
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