New forming probe bed probe module
Technical field
The present invention relates to lithium electro-technical field, and in particular to a kind of new forming probe bed probe module.
Background technology
Application with square lithium ion battery with aluminum shell in each field is increasingly popularized, people's square shaped aluminum hull lithium-ion electric
The quality in pond is proposed higher requirement with utilization rate, and traditional forming probe bed is in the urgent need to improvement is, it is necessary to more advanced chemical conversion
Technique meets this demand, and existing forming probe bed is primarily present problems with:
1st, liquid injection port is open in formation process, and the poisonous gas produced by formation process is discharged into air and can made
Into certain environmental pollution;
2nd, battery container is due to a large amount of aerogenesis in formation process, and battery container internal pressure can increase to be easier to out
Existing bulge phenomenon;
3rd, lithium ion battery can not discharge the unnecessary electrolyte of inside battery in time in discharge gas, so easily occurring
Electrolyte is remained;
4th, be melted into not abundant enough, SEI (solid electrolyte boundary film) film is homogeneous, stably, compactness also has some improvement
Space.
The content of the invention
The present invention is in order to solve the above technical problems, provide a kind of new forming probe bed probe module.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of new forming probe bed probe module, including bottom plate, probe assembly are fixed on bottom plate just by a pair of intervals
Pole probe, negative probe composition, the positive probe, negative probe syringe needle are each passed through bottom plate and below bottom base plate
Directly over positive electrode post of lithium battery, negative terminal, the bottom plate top, which is located at, sets negative pressure device between positive probe, negative probe,
The negative pressure device is directly over the lithium battery liquid injection port through bottom plate and below the bottom base plate, and the negative pressure device is by fluid injection
Mouth sealing forms negative pressure system.
The negative pressure device is vacuum cup module, and the vacuum cup module includes housing, closedtop lid, middle shrouding, sucker, institute
State closedtop lid to be tightly connected with housing upper surface by middle shrouding, horizontal channel, institute are formed between closedtop lid and housing upper surface
The sealing of horizontal channel one end is stated, the other end is connected with stainless steel joint for pipeline, and housing is vertically arranged at intervals Vertical Channel, institute
State Vertical Channel upper end to connect with horizontal channel, lower end is connected with sucker, the housing is located at Vertical Channel upper end and sets first
Filter core, the housing is located at bottom plate top, and the sucker is located at bottom plate bottom and towards the liquid injection port of lithium battery through bottom plate.
The negative pressure device is connected with gas-liquid separator.
The vacuum cup module is connected by stainless steel joint for pipeline with gas-liquid separator.
The gas-liquid separator includes point main body, an end cap, and the main body is hollow columnar, lower end closed, and upper end open is simultaneously
It is connected with end cap seal, main body upper surface is provided with the internal partition of through hole, the second filter core, main body are installed in the internal partition upper end
Lower end sets liquid outlet, and body side sets import close to upper end, and import is connected by stainless steel joint for pipeline with vacuum cup module,
End cap sidewall sets gas outlet.
The gas-liquid separator is connected by feed tube with waste liquid Storage Cup.
The waste liquid Storage Cup top, bottom are connected with feed tube, drain pipe respectively, and the feed tube, drain pipe are with giving up
Liquid Storage Cup junction sets feed liquor ball valve, goes out liquid ball valve respectively.
First filter core, the second filter core are Stainless Steel Agglomeration Filter Core or PTFE filter cores.
The bottom plate top is located between positive probe, negative probe is set up in parallel temperature probe with the negative pressure device,
The temperature probe passes through bottom plate.
Beneficial effects of the present invention are:
(1) liquid injection port is sealed with sucker adhesive in formation process, and negative pressure device is poisonous to what is generated in formation process
And corrosive gas is collected, focus on, do not allow it to be discharged into workshop and natural environment, so as to improve operating personnel
Operating environment, do not pollute the environment, be conducive to environmental protection;
(2) obtained timely handling because the gas produced in formation process is vacuumized by negative pressure device, so as to keep away
Battery is exempted from because internal pressure increases the housing bulge phenomenon produced, has improved housing aesthetics, improve battery core security;
(3) unnecessary electrolyte has also timely been handled in negative pressure device vacuum, it is to avoid electrolyte residual;
(4) subnormal ambient can effectively exclude the air between diaphragm and in diaphragm internal capillary, fill electrolyte
These micropores, can be greatly enhanced the wetting velocity of electrode in the electrolytic solution, shorten the time of repose after battery core fluid injection, improve
Production efficiency;Good infiltration of the electrolyte in electrode can be promoted simultaneously, the chemical property of battery core is improved, allow chemical conversion more to fill
Point;
(5) the SEI films of negative electrode of lithium ion battery formation can be made more homogeneous, stable and fine and close in high temperature environments, from
And its cycle performance and big multiplying power discharging property are improved, preferably ensure Li+ migration;
(6) positive and negative pole material can more closely fit housing during negative pressure, be conducive to improving living on electrode diaphragm
The compacted density of property material, to increase its loading, so as to further improve its energy density.
Brief description of the drawings
Fig. 1 is probe module top of the present invention schematic diagram;
Fig. 2 is probe module bottom schematic view of the present invention;
Fig. 3 is vacuum cup module outline drawing of the present invention;
Fig. 4 is vacuum cup module profile of the present invention;
Fig. 5 is gas-liquid separator outline drawing of the present invention;
Fig. 6 is gas-liquid separator profile of the present invention;
Fig. 7 is waste liquid Storage Cup outline drawing of the present invention;
Fig. 8 is the battery tray schematic diagram positioned at probe module bottom part down of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Embodiment is closed, the present invention is expanded on further.
As shown in Figure 1-2, a kind of new forming probe bed probe module, including bottom plate 101, probe assembly 102 is between a pair
Constituted every the positive probe 1021, negative probe 1022 being fixed on bottom plate 101, positive probe 1021, the pin of negative probe 1022
Head is each passed through bottom plate 101 and is located at lithium battery (802) positive terminal 803 of the bottom part down of bottom plate 101, the surface of negative terminal 804,
The top of bottom plate 101 is located at positive probe 1021, the both sides of negative probe 1022 and sets side Binding strap 109, the top of bottom plate 101 respectively
The Binding strap 105 after positive probe 1021, the one end of negative probe 1022 (front end of bottom plate 101 in Fig. 1) setting, with rear Binding strap
105 opposite sides set front apron 108, and the top both sides of bottom plate 101 set surely high block 103 respectively, and support is set respectively close to corner
Disk positioning sheath axle 104, pallet positioning sheath axle 104 passes through bottom plate 101, and sheath axle 104 is positioned by bottom plate 101 and the bottom of positioned at by pallet
Pallet of the bottom part down of plate 101 equipped with lithium battery is positioned, and nitrogen is fixedly mounted by mounting bracket 107 in the fixed high both sides of block 103
Valve 106, positive probe 1021, negative probe 1022 of the gas outlet of nitrogen mouth 106 towards the bottom of bottom plate 101.
Fig. 8 is positioned at the battery tray schematic diagram of probe module bottom part down of the present invention, including tray rack 801, lithium battery
802 are placed in tray rack 801, and the upper surface of lithium battery 802 includes positive terminal 803, negative terminal 804 and positioned at positive terminal 803, negative
Liquid injection port 805 between pole 804.
The top of bottom plate 101, which is located at, is set up in parallel vacuum cup module 110, temperature between positive probe 1021, negative probe 1022
Spend probe 111.
Fig. 3, Fig. 4 are respectively vacuum cup module outline drawing of the present invention and profile, vacuum cup module 110 include housing 411,
Closedtop lid 403, middle shrouding 402, sucker 401, the cross section of housing 411 are preferably T-shaped, and closedtop lid 403 passes through middle shrouding 402 and shell
The upper surface of body 411 is tightly connected, and horizontal channel 409, horizontal channel 409 1 are formed between closedtop lid 403 and the upper surface of housing 411
End sealing, the other end is connected with stainless steel joint for pipeline 404, and housing 411 is vertically arranged at intervals Vertical Channel 410, vertically
The upper end of passage 410 is connected with horizontal channel 409, and lower end is connected with sucker 401, and sucker 401 is preferably organ shape sucker, housing
411, which are located at the upper end of Vertical Channel 410, sets the first filter core 407, and the first filter core 407 is preferably Stainless Steel Agglomeration Filter Core or PTFE
(polytetrafluoroethylene (PTFE)) filter core, the middle upper surface of shrouding 402 is arranged at intervals O shape sealing strips, middle shrouding 402 with the contact surface of closedtop lid 403
Lower surface sets the first sealing ring 406 with the contact surface of housing 411, and the first filter core 407 sets second to seal with the contact surface of housing 411
Circle 407;Housing 411 is located at the top of bottom plate 101, and sucker 401 is located at the bottom of bottom plate 101 and towards lithium battery through bottom plate 101
(802) liquid injection port (805).
Vacuum cup module 110 is connected by stainless steel joint for pipeline 404 with gas-liquid separator 500.
Fig. 3, Fig. 4 are respectively the outline drawing of gas-liquid separator 500 of the present invention and profile, and gas-liquid separator 500 includes a point master
Body 501, end cap 505, main body 501 are hollow columnar, and lower end closed, upper end open is simultaneously sealed by O-ring seals with end cap 505
Connection, the upper surface of main body 501 is provided with the internal partition 508 of through hole, and the second filter core 509, the second filter are installed in the upper end of internal partition 508
Core 509 is preferably Stainless Steel Agglomeration Filter Core, and the lower end of main body 501 sets liquid outlet 504, and liquid outlet 504 is connected with waste liquid storage cup,
So as to be collected to the waste liquid isolated, the side of main body 501 sets import 503 close to upper end, and import 503 passes through stainless steel tube
Joint 404 is connected with vacuum cup module 110, and end cap 505 sets gas outlet 502 sideways, and upper end is connected support 506.
Gas-liquid separator 500 is connected by feed tube 701 with waste liquid Storage Cup 700.
The top of waste liquid Storage Cup 700, bottom are connected with feed tube 701, drain pipe 703 respectively, feed tube 701, drain pipe
703 set feed liquor ball valve 702, go out liquid ball valve 704 respectively with the junction of waste liquid Storage Cup 700.
By the way that vacuum cup module 110 is connected with gas-liquid separator 500, liquid electrolyte can be separated and be collected into
Focused in waste liquid Storage Cup 700, so as to protect pneumatic fittings to exempt from the fluorination produced in the corrosion of electrolyte, electrolyte
Hydrogen, hydrofluoric acid belong to high-risk gas and strong acid solution, and corrosivity is extremely strong, not only has aggressive to air device, to human body
Respiratory tract will also result in very big harm, and the covering device not only virtually extends the service life of expensive pneumatic fittings, also favorably
In environmental protection, general selected Pneumatic negative-pressure accessory is the corrosion resistant special pneumatic fittings of supply of brands business, and electrolyte has superpower
Corrosive power, how long Conventional pneumatic accessory have more than is needed, can frequently change, and does not reach good sealing effectiveness, and this is supporting to protect
The application of protection unit can save huge member replacing for user and take, and the time that maintenance expense and maintenance are brought wastes.It is useless
Liquid Storage Cup 700 is cleverly designed can empty waste liquid therein at any time in battery forming process, have no effect on chemical conversion work,
Concrete operations:The feed liquor ball valve 702 on the top of waste liquid Storage Cup 700 is first closed, the closing of short time has no effect on normal negative pressure
Chemical conversion, can now open the bottom of waste liquid Storage Cup 700 and go out the quick drain waste liquid of liquid ball valve 704 to connecing liquid box or water conservancy diversion at concentration
Manage the harbors such as pond.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.