CN103367691A - Electrolyte injection method and electrolyte injection apparatus - Google Patents
Electrolyte injection method and electrolyte injection apparatus Download PDFInfo
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- CN103367691A CN103367691A CN2013101099166A CN201310109916A CN103367691A CN 103367691 A CN103367691 A CN 103367691A CN 2013101099166 A CN2013101099166 A CN 2013101099166A CN 201310109916 A CN201310109916 A CN 201310109916A CN 103367691 A CN103367691 A CN 103367691A
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 199
- 238000002347 injection Methods 0.000 title claims abstract description 135
- 239000007924 injection Substances 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 95
- 239000012530 fluid Substances 0.000 claims abstract description 87
- 230000004087 circulation Effects 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 22
- 238000010926 purge Methods 0.000 claims description 30
- 230000009471 action Effects 0.000 claims description 25
- 238000011084 recovery Methods 0.000 claims description 14
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 27
- 206010037544 Purging Diseases 0.000 description 24
- 230000033228 biological regulation Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000009434 installation Methods 0.000 description 11
- 230000006837 decompression Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000005486 organic electrolyte Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention provides an electrolyte injection method and an electrolyte injection apparatus, through which a non-aqua-system electrolyte can be injected into unit containers of cells (especially lithium ion capacitors) with no air, bubbles or water mixed. The electrolyte injection apparatus has a circulation injection fluid part (16), a blowing part (18), a vacuum part (20) and a controller. The circulation injection fluid part (16) is provided with a buffer tank (24) which temporally stores the electrolyte (EL), a going path (26) which forms a flow passage between an outlet (24a) of the buffer tank (24) and a first port of a unit container (10), a returning path (28 (28A, 28B)) which forms a flow passage between a recycling port of the buffer tank (24) and a second port (14) of the unit container (10), a pump (30) which is disposed on the going path (26), and a liquid change monitoring part for monitoring the injection fluid and a bubble monitoring part (34).
Description
Technical field
The present invention relates to a kind of electrolyte method for implanting and electrolyte injection device that battery, particularly lithium-ion capacitor is injected non-aqueous electrolyte.
Background technology
In recent years, as the battery that uses non-aqueous electrolyte, lithium-ion capacitor has obtained concern.Lithium-ion capacitor uses the material with carbon element that can adsorb (doping) active carbon at positive pole and adsorb (doping) lithium ion at negative pole.That is to say, lithium-ion capacitor is the battery of the type of sneaking into that will make up as the positive pole of the double-layer capacitor of physical battery and negative pole as the lithium ion battery of chemical cell and obtain.
Lithium-ion capacitor has energy density and the electric current output density is high, can carry out that high speed discharges and recharges, self discharge is little and the advantage such as difficult generation thermal runaway, such as in great demand in various uses such as the electric power equalization device of instantaneous voltage decline compensation arrangement, uninterrupted power supply(ups), wind power generation or solar power generation, industrial robot, automobile, lathe, household electrical appliances.
In the installation (reprocessing) of lithium-ion capacitor, after alternately stacked positive pole, dividing plate, negative pole, connect positive electrode collector or positive terminal (common, aluminium terminal) at side of the positive electrode, connect negative electrode collector or negative terminal (usually, copper tip) in negative side.And, be encased in the single-unit container duplexer of electrode/dividing plate and the lithium metal of pre-doping the (pre-absorption) usefulness and sealing, to injecting electrolyte in the single-unit container.The electrolyte example is as with LiPF
6As the organic electrolyte of supporting electrolytic salt.When injecting electrolyte, beginning is mixed in advance.That is, when injecting electrolyte in to single-unit container, lithium metal is dissolved in electrolyte and becomes lithium ion, and diffusion and being adsorbed by negative pole descends the current potential of negative pole.The regulation of setting when being used for pre-the doping between resting period through out-of-date, finish by the making step of lithium-ion capacitor.
In the past, in order when making lithium-ion capacitor as described above, in single-unit container, to inject electrolyte, after being pressed into electrolyte the method in the single-unit container or using vacuum plant to make and reduce pressure in the single-unit container, introduce by employing use plunger displacement pump etc. the method for electrolyte.
Patent documentation 1: TOHKEMY 2010-186782
Summary of the invention
The problem that invention will solve
Yet electrolyte injection method in the past as described above all might be brought air, bubble in single-unit container.That is, electrolyte is pressed in the single-unit container method sometimes the air in the single-unit container do not found time fully and be residual.On the other hand, make the expeditiously air in the deliverying unit container and can carry out at short notice fluid injection of the method that reduces pressure in the single-unit container and introduce electrolyte, sometimes be incorporated on the other hand electrolyte in the single-unit container and produce and bubble.When the electrolyte entrained air in the single-unit container of finishing, bubble, a plurality of unit of combination common application in produce individual difference between the unit and the balance variation that makes up, cause producing that product is bad, performance degradation.
And, when making lithium-ion capacitor as described above, when implementing pre-the doping, sometimes in single-unit container, produce bubble.Its reason is unclear, and bubble causes but think in pre-the doping to expose from electrode collector, as the material of the Porous of dividing plate.
In addition, when having moisture in the single-unit container of the dummy status before fluid injection, sneak into moisture at the electrolyte that injects, the electrolyte of organic (non-water system) is obviously deteriorated thus.For this point, electrolyte injection method is not in the past taked sufficient countermeasure yet.
The present invention solves the problem points of conventional art as described above and finishes, provide a kind of can be in the single-unit container of battery (particularly lithium-ion capacitor) not entrained air, bubble and also do not sneak into electrolyte method for implanting and the electrolyte injection device of moisture ground injection non-aqueous electrolyte.
For the scheme of dealing with problems
Electrolyte method for implanting of the present invention is used for injecting non-aqueous electrolyte in the single-unit container to battery, have: may further comprise the steps: first step, be connected with the first port of said units container via the outlet of going to the path and will store the tank of above-mentioned electrolyte, and be connected with the second port of said units container via the recovery mouth of return path with above-mentioned tank; Second step makes to be arranged at above-mentioned pump action of going to path or above-mentioned return path, and above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the first closed loop of going to path, said units container and above-mentioned return path; And third step, Yi Bian above-mentioned electrolyte is circulated in above-mentioned the first closed loop, change Yi Bian monitor the liquid measure of the above-mentioned electrolyte in the above-mentioned tank, monitor the result according to this, in the said units container, inject the above-mentioned electrolyte of set amount.
In electrolyte method for implanting of the present invention, change to make electrolyte inject the mode that action stops according to the mode that in having the first closed loop of said structure, makes circulate electrolyte and according to the liquid measure of the electrolyte in the tank, can be in the single-unit container of lithium-ion capacitor not entrained air, bubble and also do not sneak into the non-aqueous electrolyte of moisture ground injection set amount.
Electrolyte injection device of the present invention is used for injecting above-mentioned electrolyte in the single-unit container of the battery that uses non-aqueous electrolyte, it has: tank, it stores above-mentioned electrolyte, and has be used to the outlet of sending above-mentioned electrolyte and for the recovery mouth that reclaims above-mentioned electrolyte; Go to the path, it forms stream between the first port of the outlet of above-mentioned tank and said units container; Return path, it forms stream between the second port of the recovery mouth of above-mentioned tank and said units container; Pump, it is arranged at above-mentioned path or the above-mentioned return path gone to; The first loop control section, it makes said pump action, and above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the first closed loop of going to path, said units container and above-mentioned return path; And the first fluid injection monitoring unit, it monitors that at above-mentioned electrolyte circulation time in above-mentioned the first closed loop the liquid measure of the above-mentioned electrolyte in the above-mentioned tank changes, and confirms to have injected the above-mentioned electrolyte of set amount according to this supervision result in the said units container.
In electrolyte injection device of the present invention, change to make electrolyte inject the mode that action stops according to the mode that in having the first closed loop of said structure, makes circulate electrolyte and according to the liquid measure of the electrolyte in the tank, can be in the single-unit container of lithium-ion capacitor not entrained air, bubble and also do not sneak into the non-aqueous electrolyte of moisture ground injection set amount.
The effect of invention
According to electrolyte method for implanting of the present invention, according to structure as described above and effect, can be in the single-unit container of lithium-ion capacitor not entrained air, bubble and also do not sneak into moisture ground and inject non-aqueous electrolyte.
According to electrolyte injection device of the present invention, according to structure as described above and effect, can be in the single-unit container of the battery that uses non-aqueous electrolyte not entrained air, bubble and also do not sneak into moisture ground injection electrolyte.
Description of drawings
Fig. 1 is the block diagram of the basic structure of the electrolyte injection device in expression an embodiment of the invention.
Fig. 2 is the flow chart of the Installation Modes in the above-mentioned electrolyte injection device.
Fig. 3 is the flow chart of the fluid injection pattern in the above-mentioned electrolyte injection device.
Fig. 4 is the flow chart of the again fluid injection pattern in the above-mentioned electrolyte injection device.
Fig. 5 is the figure of the more specifically structure example of the electrolyte injection device in the expression execution mode.
Fig. 6 is the block diagram of the structure of the electrolyte injection device in expression the second execution mode.
Fig. 7 is the flow chart of the fluid injection pattern in the second execution mode.
Description of reference numerals
10: single-unit container; 12: the first ports; 14: the second ports; 16: circulation fluid injection section; 18: purging section; 20: vacuum; 22: controller; 24: surge tank; 26: go to the path; 28: return path; 30: pump; 32: liquid measure changes monitoring unit; 34: the bubble monitoring unit; 36,36A, 36B: filter; 38,40,50,52: direction switch valve; 54: bypass path; 62: dry air provides the path; 64: the first gas-liquid dual-purpose paths; 66: the vacuum path; 68: the second gas-liquid dual-purpose paths.
Embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
[the basic apparatus structure in the execution mode]
Fig. 1 illustrates the basic structure of the electrolyte injection device in an embodiment of the invention.This electrolyte injection device has following 26S Proteasome Structure and Function: can be in the single-unit container of lithium-ion capacitor not entrained air, bubble and also do not sneak into moisture ground organic electrolyte is injected predefined liquid measure.
Can have the arbitrarily shape such as platypelloid type, plate, cylinder type as the single-unit container 10 of workpiece, preferably have respectively two port ones 2,14 on relative pair of horns, face or the limit of container.These port ones 2,14 are communicated with the electrolyte packing space in single-unit container 10.The stepped construction of the internal structure of single-unit container 10, particularly positive pole-dividing plate-negative pole also can adopt arbitrarily mode.
This electrolyte injection device possesses circulation fluid injection section 16, purging section 18, vacuum 20 and controller 22, as the major function piece.
Circulation fluid injection section 16 has: surge tank 24, and it stores electrolyte EL temporarily; Go to path 26 (26A, 26B, 26C, 26D), it forms stream between the first port 12 of the outlet 24a of surge tank 24 and single-unit container 10; Return path 28 (28A, 28B), it forms stream between the second port one 4 of the recovery mouth 24b of surge tank 24 and single-unit container 10; Be arranged at the pump 30 of going to path 26 (perhaps return path 28); And fluid injection monitors that the liquid measure of usefulness changes monitoring unit 32 and bubble monitoring unit 34.
Also be provided with introducing port 24c in surge tank 24, this introducing port 24c is used for providing source 25 to import new electrolyte EL via electrolyte supply path 27 from electrolyte.Be provided with open and close valve 29 in electrolyte supply path 27.And, in surge tank 24, also be provided with exhaust outlet and floss hole (not shown).In addition, electrolyte EL for example is with LiPF
6As the organic electrolyte of supporting electrolytic salt.
Liquid measure changes monitoring unit 32 and constitutes, approach configuration (perhaps being disposed in the tank) with the outside of surge tank 24, such as the liquid measure that directly monitors the electrolyte EL in the tank 24 by optical profile type or float mode etc. or the variation of liquid level (highly), indirectly monitor thus to situation or the injection rate of single-unit container 10 interior injection electrolyte EL.
Not only be provided with pump 30 on the path 26 going to, also be provided with filter 36 and direction switch valve 38 towards the downstream from pump 30.The initiating terminal of going to path 26 is connected with the outlet 24a of surge tank 24, and clearing end is connected with direction switch valve 40.Each interval 26A, the 26B, 26C, the 26D that go to path 26 can have arbitrarily length.
The initiating terminal of return path 28 is connected with direction switch valve 50, and clearing end is connected with the recovery mouth 24b of surge tank 24.Between the two ends of return path 28, be provided with direction switch valve 52.The interval 28A of each of return path 28,28B can have arbitrarily length.Bubble monitoring unit 34 constitutes, and approaches configuration with return path 28, has or not bubble such as directly monitoring among the electrolyte EL that flows through return path 28 by optical profile type or ultrasonic wave mode etc., indirectly has or not air or bubble in the monitor unit container 10 thus.
Between the direction switch valve 52 of the direction switch valve 38 of going to path 26 sides and return path 28 sides, be provided with bypass path 54.Direction switch valve 38 also can be triple valve, but more preferably by be arranged at respectively path 26C, the 26D around it, a plurality of open and close valves of 54 consist of, any in the connected mode that the interval 26C that can select to go to connected mode that the interval 26C in path 26 is connected with interval 26D, will go to path 26 is connected with bypass path 54 and the interval 26D that will go to path 26 and the connected mode that bypass path 54 is connected.In the situation that consist of direction switch valve 38 with open and close valve, can also use direction switch valve 38 to stop up each path 26C, 26D, 54.
The direction switch valve 52 of return path 28 sides also can be triple valve, but more preferably by be arranged at respectively path 28A, the 28B around it, a plurality of open and close valves of 54 consist of, the connected mode that can select connected mode that the interval 28A with return path 28 is connected with interval 28B, the interval 28A of return path 28 is connected with bypass path 54 and with in the interval 28B of return path 28 and the connected mode that bypass path 54 is connected any.In the situation that consist of direction switch valve 52 with open and close valve, can also use direction switch valve 52 to stop up each path 28A, 28B, 54.
In addition, be arranged at the interior direction switch valve (38,40,50,52) of this device and open and close valve (29,44) are preferably the self-action (electromagnetic type) that switches under the control of controller 22 valve, but also can be the valve of manual type.
[effect in the execution mode]
The effect of this electrolyte injection device then, is described.This electrolyte injection device and operator's manual operation or manual working cooperate and optionally carry out each operation of Installation Modes, fluid injection pattern and again fluid injection pattern.
＜Installation Modes 〉
As shown in Figure 2, Installation Modes has four kinds of patterns, i.e. filter drying mode, electrolyte supplement mode, filter de-bubble pattern and fluid injection path de-bubble pattern.
The operator arranges filter 36 new or recycling to apparatus main body after, when selecting the filter drying mode and press (perhaps clicking) start button, carry out filter drying process S
1In addition, surge tank 24 is made as dummy status.
So, be provided to filter 36 through providing path 62, direction switch valve 40 by dry air, go to interval 26D, the direction switch valve 38 in path 26 and going to purging path that the interval 26C in path 26 forms from the outlet side of filter 36 by the dry air of purging section 18 output.The dry air that imports in the filter 36 is discharged to steam vent path 42 from the steam vent 36a of filter 36, flow into the surge tank 24 of dummy status.At this moment, the moisture that is present in existence in moisture in the filter 36 and this purgings path air that all is dried is involved in and delivers to surge tank 24, is discharged to the outside from the exhaust outlet of surge tank 24.In the situation that super dry high temperature air as described above is used in this dry air, can further improve purging (moisture removal) effect.
At filter drying process S
1In, also can implement to purge to other path of circulation fluid injection section 16.Namely, close the open and close valve 44 in steam vent path 42, the pressure of the dry air that raising is sent from purging section 18 can also make the dry air that imports to filter 36 pass interval 26B, overflow valve 46 and the overflow route 48 of going to path 26 and flow to surge tank 24 from the entrance of filter 36 thus.Thus, can the interval 26B that go to path 26 be purged.
In addition, the interval 26D that will go to path 26 at direction switch valve 38 places is connected with bypass path 54, at direction switch valve 52 places bypass path 54 is connected with the interval 28B of return path 28, the interval 28B that can also make thus dry air from purging section 18 pass bypass path 54 and return path 28 flows to surge tank 24.Thus, can the interval 28B of bypass path 54 and return path 28 be purged.
And, the interval 26D that will go to path 26 at direction switch valve 38 places is connected with bypass path 54, at direction switch valve 52 places bypass path 54 is connected with the interval 28A of return path 28, interval 28A at direction switch valve 50 places with return path 28 is connected with vacuum path 66, and the interval 28A that can also make thus dry air from purging section 18 pass bypass path 54 and return path 28 flows to vacuum 20 sides.Thus, can the interval 28A of bypass path 54 and return path 28 be purged.When the purging of the stipulated time that all the fluid injection paths in filter 36 and the circulation fluid injection section 16 are carried out finished, controller 22 stopped filter drying process S
1
At filter drying process S as described above
1After the end, the operator apparatus main body is installed electrolyte bottle (not shown) afterwards, when selecting the electrolyte supplement mode and press (perhaps clicking) regulation start button, carry out electrolyte additional process S
2
At electrolyte additional process S
2After the end, when the operator selects this pattern and press (perhaps clicking) regulation start button, beginning filter de-bubble pattern.
At filter de-bubble operation S as described above
3After the end, apparatus main body is installed after illusory pipe (not shown) replaces single-unit container 10 the operator, when selecting fluid injection path de-bubble pattern and press (perhaps clicking) regulation start button, carried out fluid injection path de-bubble operation S
4In this case, illusory pipe is connected via band unidirectional valve joint, for example automatic coupler (not shown) between the first and second gas-liquid dual- purpose paths 64,68.
The electrolyte EL that utilizes pump 30 to draw out from surge tank 24 flows through and goes to path 26, the first gas-liquid dual-purpose path 64, illusory pipe, the second gas-liquid dual-purpose path 68 and return path 28 and turn back to surge tank 24.Thus, during pump 30 action, electrolyte EL by surge tank 24, go in the first closed loop that path 26, filter 36, the first gas-liquid dual-purpose path 64, illusory pipe, the second gas-liquid dual-purpose path 68 and return path 28 consist of and circulate.Be present in air in this first closed loop or bubble on surge tank 24 interior arrival liquid levels and discharge from the exhaust outlet of tank.Thereby, the amount of the bubble (namely flowing through the bubble that comprises in the electrolyte EL of return path 28) that is monitored by bubble monitoring unit 34 along with the time through and reduce.Substantially do not detect when not detecting the above bubble of fixed amount afterwards through the set time in bubble or the time per unit, bubble monitoring unit 34 produces the supervisory signal of regulation, confirms to have removed in the first closed loop the situation of bubble.Controller 22 stops pump 30 in response to this supervisory signal.
At fluid injection path de-bubble operation S
4In can also carry out de-bubble to bypass path 54.For this reason, the interval 26C that will go to path 26 at direction switch valve 38 places is connected with bypass path 54, at direction switch valve 52 places bypass path 54 is connected with the interval 28B of return path 28.So, electrolyte EL by surge tank 24, go in the second closed loop that path 26, filter 36, bypass path 54 and return path 28 consist of and circulate.In this case, also after bubble monitoring unit 34 confirmed to have removed the situation of bubble in the second closed loop, controller 22 stopped pump 30.
As fluid injection path de-bubble operation S
4During end, take off illusory pipe by the operator from apparatus main body.In this case, even take off automatic coupler, each fluid injection Route maintenance air-tightness of circulation fluid injection section 16 forms the state do not sneak into bubble and to be filled up by electrolyte EL.
＜fluid injection pattern 〉
As shown in Figure 3, it is initialize mode and unit fluid injection pattern that fluid injection pattern has two kinds of patterns.As mentioned above after the whole operations of Installation Modes finish, omit initialize mode and implement unit fluid injection pattern.Afterwards, when namely implementing for the second time later unit fluid injection pattern, before this pattern of enforcement, implement initialize mode.
After the operator is to apparatus main body installation unit container 10, when selecting unit fluid injection pattern and press (perhaps clicking) regulation start button, unit drying process S
5, unit decompression operation S
6And fluid injection operation S
7Continue in turn to carry out.In this case, single-unit container 10 is connected between the first and second gas-liquid dual- purpose paths 64,68 via band unidirectional valve joint, for example automatic coupler (not shown).
So, provide path 62 and the first gas-liquid dual-purpose path 64 to be sent to the single-unit container 10 from the first port 12 from the dry air of purging section 18 through dry air.And the dry air of exporting from the second port one 4 of single-unit container 10 is sent to vacuum 20 through the second gas-liquid dual-purpose path 68 and vacuum path 66.The moisture of single-unit container 10 interior existence is dried that air is involved in and discharges from single-unit container 10, is sent to vacuum 20.The vacuum 20 of open mode will flow through the air and the moisture that come through vacuum path 66 directly delivers to discharge duct.In this case, in the situation that super dry high temperature air as described above is used in dry air, can further improve purging (moisture removal) effect.
When the timer setting-up time of regulation through out-of-date, controller 22 switches to closed condition with direction switch valve 40 provides path 62 so that cut off dry air, and opens purging section 18.Thus, unit drying process S
5Finish.
Then, for performance element decompression operation S
6, with under the second gas-liquid dual-purpose path 68 and the state that vacuum path 66 is connected, controller 22 makes vacuum 20 actions at direction switch valve 50 places.Thus, the air in the single-unit container 10 is attracted to vacuum 20 via the second gas-liquid dual-purpose path 68 and vacuum path 66, makes in the single-unit container 10 and reduces pressure.Controller 22 is after the timer setting-up time process of regulation, come the pressure in the confirmation unit container 10 to reduce pressure below the set point by the pressure sensor (not shown) in the vacuum 20, thereby direction switch valve 50 is switched to closed condition so that cut off vacuum path 66, and open vacuum 20.Thus, unit decompression operation S
6Finish.
In addition, carrying out unit drying process S as described above
5With unit decompression operation S
6During this time, in circulation fluid injection section 16, can also make pump 30 action, make electrolyte EL by surge tank 24, go in the second closed loop that path 26, filter 36, bypass path 54 and return path 28 consist of and circulate.In this case, preferably the liquid level in the surge tank 24 is adjusted into above-mentioned the first liquid level [height: HIGH].Use like this bypass path 54 make electrolyte EL in surge tank 24 and fluid injection path 26,28 interior lasting circulations, the concentration of electrolyte EL can be remained thus fixingly, and can continue to remove bubble in the fluid injection path 26,28.
As unit decompression operation S
6During end, controller 22 then begins fluid injection operation S
7In this case, controller 22 will be gone to path 26 at direction switch valve 38 places interval 26C is connected with interval 26D, and the interval 28A at direction switch valve 52 places with return path 28 is connected with interval 28B.And, make pump 30 actions, remain under the state of closed condition at the direction switch valve 50 with return path 28 sides, the interval 26D that at first will go to path 26 at direction switch valve 40 places that go to path 26 sides is connected with the first gas-liquid dual-purpose path 64.So therefore, owing to being in decompression state in the single-unit container 10, even the second port one 4 is closed, introduce electrolyte EL also can be from the first port 12 to single-unit container 10.
When setting-up time (about several seconds) through out-of-date, it is the suitable opportunity that is converted to malleation in the controller 22 estimation unit containers 10 from negative pressure, the direction switch valve 50 of return path 28 sides is switched to open mode, the second gas-liquid dual-purpose path 68 is connected with return path 28.Thus, electrolyte EL in the single-unit container 10 flow out, electrolyte EL by surge tank 24, go in the first closed loop that path 26, filter 36, the first gas-liquid dual-purpose path 64, single-unit container 10, the second gas-liquid dual-purpose path 68 and return path 28 consist of and begin circulation.
When such electrolyte EL circulation time in the first closed loop, electrolyte EL spreads all over the electrolyte packing space in the single-unit container 10 gradually, and the air in the single-unit container 10, bubble are sent to surge tank 24 from 4 discharges of the second port one and through return path 28.And the air, bubble that is sent to surge tank 24 arrives on the liquid level and discharges from exhaust outlet.
Thereby when the liquid level at surge tank 24 electrolyte inside EL dropped to the second liquid level [low: LOW], liquid measure changed the supervisory signal that monitoring unit 32 produces regulation.Single-unit container 10 and all paths that controller 22 is judged as in this time point the first closed loop are filled electrolyte EL.
In the present embodiment, expectation is further injected electrolyte EL fully to single-unit container 10, therefore after liquid measure variation monitoring unit 32 receives supervisory signal, before bubble monitoring unit 34 confirmed to have removed bubble in the first closed loop, controller 22 made the circulation continuous of the electrolyte EL in the first closed loop.
And when the circulation of the electrolyte EL in making the first closed loop stopped, the direction switch valve 40 that controller 22 only will be gone to path 26 sides switched to closed condition.So, because pump 30 also in action, therefore comes the attraction of self-pumping 30 to act in the single-unit container 10 through return path 28 and the second gas-liquid dual-purpose path 68, become a little negative pressure in the single-unit container 10.At this moment, at the outlet side of pump 30, overflow valve 46 is opened.Controller 22 switches to closed condition with the direction switch valve 50 of return path 28 sides afterwards through the stipulated time after direction switch valve 40 is switched to closed condition.
At this fluid injection operation S
7In, direction switch valve 50 is not switched to closed condition, and switch to the mode that the second gas-liquid dual-purpose path 68 is connected with vacuum path 66, can make vacuum 20 actions.Thus, can be more expeditiously the decompression pressure in the control unit container 10 at random.
As fluid injection operation S
7Reprocessing, controller 22 will be gone to path 26 at direction switch valve 38 places interval 26D is connected with bypass path 54, and at direction switch valve 52 places bypass path 54 is connected with the interval 28B of return path 28, make electrolyte EL by surge tank 24, go in the second closed loop that path 26, filter 36, bypass path 54 and return path 28 consist of and circulate.And, make electrolyte provide the pump in source 25 and liquid measure to change monitoring unit 32 actions, make the liquid level in the surge tank 24 turn back to the first liquid level [height: HIGH].
As mentioned above, at fluid injection operation S
7After finishing, the operator takes off the single-unit container 10 of fluid injection from apparatus main body, instead installs after the illusory pipe, when selecting initialize mode and press (perhaps clicking) regulation start button, carries out initialization operation S
8In this case, take off single-unit container 10 from automatic coupler closing under the first and second port ones 2,14 the state, continue to keep air-tightness.On the other hand, illusory pipe is connected between the first and second gas-liquid dual- purpose paths 64,68 through automatic coupler.
At initialization operation S
8In, controller 22 provides path 62 to be connected with the first gas-liquid dual-purpose path 64 dry air at direction switch valve 40 places, and makes 18 actions of purging section.So dry air provides path 62, the first gas-liquid dual-purpose path 64, illusory pipe, the second gas-liquid dual-purpose path 68 and vacuum path 66 to flow to vacuum 20 from purging section 18 through dry air.At this moment, also can open vacuum 20.Thus, the raffinate in direction switch valve 40,50, the first and second gas-liquid dual- purpose paths 64,68 is discharged to vacuum 20 sides.Controller 22 is after the process set time, and at first the direction switch valve 40 with upstream side switches to closed condition, and then (postpones about 1 second) after this switching the direction switch valve 50 in downstream is switched to closed condition, so that not residual interior pressure.In addition, as described later, can also make the electrolyte EL in vacuum 20 interior recovery turn back to surge tank 24.
On the other hand, in circulation fluid injection section 16, controller 22 makes pump 30 action, make electrolyte EL by surge tank 24, go in the second closed loop that path 26, filter 36, bypass path 54 and return path 28 consist of and circulate.And, the liquid level in the surge tank 24 is adjusted into above-mentioned the first liquid level [height: HIGH] (electrolyte additional process S9).The operator takes off illusory pipe from apparatus main body, and the single-unit container 10 of other (dummy status) instead is installed, and this single-unit container 10 is implemented unit fluid injection pattern again.
In order to implement i.e. pre-doping of ageing, the single-unit container 10 of the fluid injection of taking off from apparatus main body is placed specified time limit (for example several days) under air-tight state.As mentioned above, when in lithium-ion capacitor, implementing pre-the doping, sometimes at single-unit container 10 interior generation bubbles.In this embodiment, as mentioned above, make the state that is in a little negative pressure in the single-unit container 10, even therefore in pre-the doping, produce the situation that bubble also can prevent from becoming in the single-unit container 10 barotropic state.And the bubble in single-unit container 10 interior generations in pre-the doping also can be completely removed in again fluid injection pattern described later.
＜again fluid injection pattern 〉
After the single-unit container 10 that the operator will be mixes in advance has been installed on apparatus main body, when this pattern of selection and when pressing the start button that (perhaps clicking) stipulate, begin again fluid injection pattern (Fig. 4).In this case, single-unit container 10 is connected between the first and second gas-liquid dual- purpose paths 64,68 via band unidirectional valve joint, for example automatic coupler (not shown).
Under again fluid injection pattern, when controller 22 is not adjusted to the first level [height: HIGH] in electrolyte EL surge tank 24, carry out the electrolyte additional process S with Installation Modes
2Identical electrolyte additional process S
10Afterwards, carry out again fluid injection operation S
11When electrolyte EL is adjusted to the first level [height: HIGH] in surge tank 24, skip electrolyte additional process S
10And carry out again fluid injection operation S
11
At again fluid injection operation S
11After the end, take off single-unit container 10 from apparatus main body.In this case, with fluid injection operation S
7End the time similarly, also can be in making single-unit container 10 take off single-unit container 10 under the state of a little negative pressure.
Single-unit container 10 after finishing for again fluid injection pattern uses sealing devices (not shown) such as sealing the first and second port ones 2,14 by riveted joint or crimping sealing etc., thereby forms the finished product lithium-ion capacitor.
[the concrete apparatus structure in the execution mode]
Fig. 5 illustrates the more specifically structure example of the electrolyte injection device in the above-mentioned execution mode.In addition, omit diagram controller 22.
In this concrete apparatus structure example, the liquid measure of circulation fluid injection section 16 changes monitoring unit 32 not only for level detection the first and second liquid levels [height: HIGH], [low: LOW] of the electrolyte EL in the surge tank 24, can also detect the 3rd liquid level [closing: OFF] of overflow supervision usefulness and the 4th liquid level [sky: EM] that dummy status monitors usefulness.The exhaust outlet 24d of surge tank 24 is connected with atmosphere port 72 via open and close valve 70.Filter 36 has the thick dirt of removal or the primary filter 36A of impurity and the secondary filter 36B that removes thin dirt or impurity.
Purging section 18 has dry air unit 74, adjuster 76, mass flow controller (MFC) 78, combustion heater 80 and filter 82.Dry air unit 74 for example possesses compressor and dehumidifier, and the generation dew point temperature is the super dry air about-60 ℃～-40 ℃.
In this embodiment, as mentioned above, be arranged at pump 30 action of going to path 26 (return path 28) and make electrolyte EL comprise surge tank 24 by making, go to path 26, the mode of circulation in the first closed loop of single-unit container 10 and return path 28, and confirm mode in the situation of the interior electrolyte EL that has injected set amount of single-unit container 10 by changing while the liquid measure that electrolyte EL is circulated monitor the electrolyte EL in the surge tank 24 according to this supervision result in the first closed loop, thus can be in single-unit container 10 entrained air not, bubble and also do not sneak into moisture ground and inject organic electrolyte EL.
Particularly, by filter drying process S as described above
1With unit drying process S
5, can remove the moisture in the single-unit container 10 of the filter 36 of circulation fluid injection section 16 and the moisture in each path 26,28 and the dummy status before the fluid injection fully, can in single-unit container 10, not sneak into moisture ground and inject the organic electrolyte of stipulating.
And, by filter de-bubble operation S as described above
3With fluid injection path de-bubble operation S
4, can before fluid injection, remove air or bubble fully in filter 36 and each path 26,28 from circulation fluid injection section 16.Thus, bring air, bubble in can preventing from circulation fluid injection section 16 to single-unit container 10.And, by fluid injection operation S as described above
7, can be in single-unit container 10 entrained air, bubble ground inject electrolyte EL.In addition, by electrolyte additional process S2 as described above, S9 and fluid injection operation S
7, can in single-unit container 10, correctly inject the electrolyte EL of set amount.
And, by again fluid injection operation S as described above
11, the bubble in single-unit container 10 interior generations in mixing in advance can be removed expeditiously fully.
[other execution mode or variation]
Then, with Fig. 6,7 the second execution mode is described.In addition, the part identical with above-mentioned execution mode that description thereof is omitted.Fig. 6 is the block diagram of the structure of the electrolyte injection device in expression the second execution mode.In the second execution mode, go to path 26 and have interval 26A～26E.At the distolateral direction switch valve 38 that is connected with of interval 26D, at another distolateral open and close valve 101 that is connected with.Be connected with the distolateral of interval 26E at open and close valve 101, at another distolateral band unidirectional valve joint, for example automatic coupler 102 that is connected for the port one 2 of single-unit container 10 that be connected with.
Return path 28 has interval 28A～28C.At the distolateral direction switch valve 52 that is connected with of interval 28A, at another distolateral open and close valve 103 that is connected with.Be connected with the distolateral of interval 28C at open and close valve 103, at another distolateral automatic coupler 104 that is connected for the port one 4 of single-unit container 10 that is connected with.
The outlet side of purging section 18 provides path 62 to be connected with automatic coupler 105 via dry air, and this automatic coupler 105 is used for being connected with the port one 2 of single-unit container 10.Provide at dry air between the two ends in path 62 and be provided with open and close valve 106.
The entrance side of vacuum 20 is connected with automatic coupler 107 via vacuum path 66, and this automatic coupler 107 is used for being connected with the port one 4 of single-unit container 10.Between the two ends in vacuum path 66, be provided with open and close valve 108.
In addition, under the control of controller 22, open and close valve 101,103,106,108 switching are controlled.
Then.Installation Modes in the second execution mode is described.The filter drying mode is part different from the embodiment described above.Before carrying out the filter drying mode, the operator installs not shown illusory pipe between automatic coupler 102 and 105, connects automatic coupler 102 and 105.Similarly, not shown illusory pipe also is installed and is connected automatic coupler 104 and 107 between automatic coupler 104 and 107.Afterwards, with above-mentioned the first execution mode similarly, carry out Installation Modes.
Then, use Fig. 7 illustrates the fluid injection pattern in the second execution mode.As shown in Figure 7, to have three kinds of patterns be initialize mode, unit drying mode and unit fluid injection pattern to the fluid injection pattern of the second execution mode.Initialize mode is identical with above-mentioned execution mode.
Then, the unit drying mode is described.The operator is to automatic coupler 105,107 installation unit containers 10.When selecting the unit drying mode and pressing the start button of regulation, performance element drying process S
5If unit drying process S
5Finish, then the operator takes off single-unit container 10 from apparatus main body.
Then, fluid injection pattern in unit is described.Single-unit container 10 after the operator finishes the unit drying mode is installed to automatic coupler 102,104.When selecting unit fluid injection pattern and pressing the start button of regulation, with above-mentioned the first execution mode similarly, unit decompression operation S
6, fluid injection operation S
7Carry out in turn.
In the above-described first embodiment, after fluid injection pattern in unit finishes, in the first gas-liquid dual-purpose path 64, the second gas-liquid dual-purpose path 68, there is electrolyte.Thereby in the situation that after the unit fluid injection pattern single-unit container 10 is carried out the unit drying mode, the electrolyte that needs to remove in the first gas-liquid dual-purpose path 64, the second gas-liquid dual-purpose path 68 carries out drying.But, in the second execution mode, do not need to carry out this processing and can shorten the processing time.
In addition, in the second execution mode, also can be replaced by other single-unit container 10 if the dryings in single-unit container 10 are finished and continue to carry out drying in other single-unit container 10.That is to say, also can carry out continuously the unit drying mode to a plurality of single-unit containers 10.Similarly, also can be replaced by other single-unit container 10 if the fluid injections in single-unit container 10 are finished and continue to carry out fluid injection in other single-unit container 10.That is to say, also can carry out continuously unit fluid injection pattern to a plurality of single-unit containers 10.In addition, also can be to 10 while of different single-unit containers Parallel Unit drying mode and unit fluid injection pattern.Like this, can further shorten the processing time.
Above, preferred implementation of the present invention has been described, but the present invention is not limited to above-mentioned execution mode, in the scope of its technological thought, can carry out various distortion or change.
For example, as mentioned above, can also with three valves consist of direction switch valve 38,40,50,52 whole or a part of.Can also use vacuum pump to replace injector 84.As required, can also omit bypass path 54.Electrolyte EL can use arbitrarily non-aqueous electrolyte.Thereby electrolyte injection device of the present invention can also be applied to other batteries such as lithium ion battery.
Claims (22)
1. an electrolyte method for implanting is used for injecting non-aqueous electrolyte in the single-unit container to battery, wherein, may further comprise the steps:
First step is connected with the first port of said units container via the outlet of going to the path and will store the tank of above-mentioned electrolyte, and is connected with the second port of said units container via the recovery mouth of return path with above-mentioned tank;
Second step makes to be arranged at above-mentioned pump action of going to path or above-mentioned return path, and above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the first closed loop of going to path, said units container and above-mentioned return path; And
Third step Yi Bian above-mentioned electrolyte is circulated in above-mentioned the first closed loop, changes Yi Bian monitor the liquid measure of the above-mentioned electrolyte in the above-mentioned tank, monitors the result according to this, injects the above-mentioned electrolyte of set amount in the said units container.
2. electrolyte method for implanting according to claim 1 is characterized in that,
Before above-mentioned second step, further comprising the steps of:
Walk around the said units container and go to connecting bypass path between path and the above-mentioned return path above-mentioned; And
Make said pump action, above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the second closed loop of going to path, above-mentioned bypass path and above-mentioned return path.
3. electrolyte method for implanting according to claim 2 is characterized in that,
Above-mentioned electrolyte is circulated on one side in above-mentioned the second closed loop, Yi Bian make the liquid level of the above-mentioned electrolyte in the above-mentioned tank consistent with the first liquid level,
In above-mentioned third step, the liquid level that detects above-mentioned electrolyte in the above-mentioned tank drops to the situation of hanging down the second liquid level of prescribed level than above-mentioned the first liquid level, thereby the liquid measure of confirming the above-mentioned electrolyte in the said units container has reached above-mentioned set amount.
4. the described electrolyte method for implanting of each according to claim 1～3 is characterized in that,
In above-mentioned third step, confirmed in the said units container, to have injected after the above-mentioned electrolyte of above-mentioned set amount, also monitor the bubble that comprises in the above-mentioned electrolyte that flows through above-mentioned return path while above-mentioned electrolyte is circulated in above-mentioned the first closed loop, confirm to have removed bubble from the said units container according to this supervision result.
5. the described electrolyte method for implanting of each according to claim 1～3 is characterized in that,
In order to remove the above-mentioned moisture of going in path and the above-mentioned return path, dummy status above-mentioned gone to the path and above-mentioned return path provides dry air to purge.
6. the described electrolyte method for implanting of each according to claim 1～3 is characterized in that,
In order to remove the moisture in the said units container, provide dry air to purge to the said units container of dummy status.
7. the described electrolyte method for implanting of each according to claim 1～3 is characterized in that,
After the injection of the above-mentioned electrolyte that carries out to above-mentioned single-unit container finishes, to reducing pressure in the said units container.
8. the described electrolyte method for implanting of each according to claim 1～3 is characterized in that,
After the injection of the above-mentioned electrolyte that carries out to above-mentioned single-unit container finishes, for to the pre-doped lithium ion of the negative pole in the said units container, make the said units container under air-tight state, place specified time limit,
After above-mentioned pre-doping finishes, while being circulated, above-mentioned electrolyte monitors the bubble that comprises in the above-mentioned electrolyte that flows through above-mentioned return path in above-mentioned the first closed loop, confirm to have removed bubble from the said units container according to this supervision result.
9. electrolyte method for implanting according to claim 8 is characterized in that,
After re-injecting of the above-mentioned electrolyte that carries out to above-mentioned single-unit container finished, to reducing pressure in the said units container.
10. an electrolyte injection device is used for injecting above-mentioned electrolyte in the single-unit container of the battery that uses non-aqueous electrolyte, and it has:
Tank, it stores above-mentioned electrolyte, and has be used to the outlet of sending above-mentioned electrolyte and for the recovery mouth that reclaims above-mentioned electrolyte;
Go to the path, it forms stream between the first port of the outlet of above-mentioned tank and said units container;
Return path, it forms stream between the second port of the recovery mouth of above-mentioned tank and said units container;
Pump, it is arranged at above-mentioned path or the above-mentioned return path gone to;
The first loop control section, it makes said pump action, and above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the first closed loop of going to path, said units container and above-mentioned return path; And
The first fluid injection monitoring unit, it monitors that at above-mentioned electrolyte circulation time in above-mentioned the first closed loop the liquid measure of the above-mentioned electrolyte in the above-mentioned tank changes, and confirms to have injected the above-mentioned electrolyte of set amount according to this supervision result in the said units container.
11. electrolyte injection device according to claim 10 is characterized in that also having:
Bypass path, it is used for walking around the said units container and the above-mentioned path of going to is connected with above-mentioned return path; And
The second loop control section, it makes said pump action, and above-mentioned electrolyte is circulated within comprising above-mentioned tank, above-mentioned the second closed loop of going to path, above-mentioned bypass path and above-mentioned return path.
12. electrolyte injection device according to claim 11 is characterized in that,
Also have direction switch valve, this direction transfer valve be used for to be selected said units container and above-mentioned bypass path somely is connected to above-mentioned going between path and the above-mentioned return path.
13. according to claim 11 or 12 described electrolyte injection devices, it is characterized in that,
Making before above-mentioned electrolyte circulates in above-mentioned the first closed loop, above-mentioned electrolyte is circulated in above-mentioned the second closed loop, according to the supervision result of above-mentioned the first fluid injection monitoring unit, make the liquid level of the above-mentioned electrolyte in the above-mentioned tank consistent with the first liquid level,
Make above-mentioned electrolyte circulation time in above-mentioned the first closed loop, the liquid level that is detected the above-mentioned electrolyte in above-mentioned tank by above-mentioned the first fluid injection monitoring unit drops to the situation of hanging down the second liquid level of prescribed level than above-mentioned the first liquid level, thereby the liquid measure of confirming the above-mentioned electrolyte in the said units container has reached above-mentioned set amount.
14. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
Also has the second fluid injection monitoring unit, this the second fluid injection monitoring unit monitors at above-mentioned electrolyte circulation time in above-mentioned the first closed loop and flows through the bubble that comprises in the above-mentioned electrolyte of above-mentioned return path, confirms do not have air in the said units container according to this supervision result.
15. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
Also have filter, this filter is arranged at the above-mentioned path of going to, and removes the foreign matter or the impurity that comprise in the above-mentioned electrolyte.
16. electrolyte injection device according to claim 15 is characterized in that,
Above-mentioned filter has steam vent.
17. electrolyte injection device according to claim 16 is characterized in that also having:
The steam vent path, it is used for connecting the steam vent of above-mentioned filter and the recovery mouth of above-mentioned tank; And
Open and close valve, it is arranged at above-mentioned steam vent path.
18. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
Also has the overflow valve that is connected with the outlet side of said pump.
19. electrolyte injection device according to claim 18 is characterized in that,
Also has the overflow route that the outlet side with above-mentioned overflow valve is connected with the recovery mouth of above-mentioned tank.
20. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
The above-mentioned path of going to is connected with above-mentioned first port of said units container with the unidirectional valve joint via first, and above-mentioned return path is connected with above-mentioned second port of said units container with the unidirectional valve joint via second.
21. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
Also have purging section, this purging section can be connected with above-mentioned any that go in path, above-mentioned return path and the said units container, so that dry air to be provided.
22. the described electrolyte injection device of each according to claim 10～12 is characterized in that,
Also have vacuum, this vacuum can be connected with the said units container, to carry out exhaust or to vacuumize.
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| JP2012-080285 | 2012-03-30 | ||
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| JP2013-031909 | 2013-02-21 | ||
| JP2013031909A JP2013229571A (en) | 2012-03-30 | 2013-02-21 | Electrolyte injection method and electrolyte injection apparatus |
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Application publication date: 20131023 |