CN109132266A - A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data - Google Patents
A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data Download PDFInfo
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- CN109132266A CN109132266A CN201811283678.XA CN201811283678A CN109132266A CN 109132266 A CN109132266 A CN 109132266A CN 201811283678 A CN201811283678 A CN 201811283678A CN 109132266 A CN109132266 A CN 109132266A
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- Prior art keywords
- pail pack
- pressure
- temperature
- electrolyte
- lithium battery
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
Abstract
The present invention discloses a kind of device of energy monitored over time lithium battery electrolytes pail pack temperature, pressure data.Using pail pack external temp, the electric instrument of pressure testing and controlling alarm, original pail pack internal structure is not changed.Portable pressure recorder is direct-connected in air inlet pipe with threeway quick coupling, and electron temperature recorder is fixed simply by being coated with the stainless steel buckle of heat-conducting silicone grease, and dismounting is quick, using simple.Electrolyte manufacturer is only needed to set data acquiring frequency and temperature, pressure alarm upper and lower limits before factory, so that it may monitor, automatically record, automatic alarm automatically to the storage of electrolyte pail pack, transport and using the round-the-clock realization of overall process.It is not required to external power supply, is not required to additionally be routed, measuring and control data can be had access at any time by USB flash disk.
Description
Technical field
The present invention relates to the packing technique fields of lithium battery electrolytes.More particularly to a kind of can monitored over time lithium electricity
The pail pack of pond electrolyte temperature pressure data.
Background technique
Lithium-ion battery electrolytes are the ion conductors that conduction is played between lithium ion battery plus-negative plate, by electrolyte lithium
The raw materials such as salt, the organic solvent of high-purity and necessary additive are made into certain proportion, energy density, power in battery
Density, cycle life, security performance etc. play vital role.
Mature way industrial at present is that under inert gas protection, prepared electrolyte is filled into stainless steel material packet
Barrelling storage, transport.To prevent the electrolyte in pail pack from absorbing moisture in atmospheric environment during storage, transport and use
Electrolyte decomposition is caused to fail, pail pack is completed also to need to be filled with a certain amount of inert gas after electrolyte is filling, makes pail pack
Moment is in barotropic state.
From the point of view of avoiding electrolyte from absorbing atmospheric environment moisture, the higher the better for electrolyte pail pack internal pressure.But from packet
Barrelling security standpoint is seen, certainly safer closer to environment atmospheric pressure.And it is known that closed container the inside gas
Pressure varies with temperature and changes (by known to ideal gas formula formula simple computation；If atmospheric temperature is under zero in winter
20 DEG C change to 30 DEG C above freezing of summer, then in closed container about 17%) gas pressure intensity can differ.
Comprehensively consider the active protection of the round-the-clock storage Transport Safety of pail pack and pail pack electrolyte inside, newest lithium
The professional standard (SJ/T11723-2018) of ion battery electrolyte makes temperature, pressure index for taking into account the two: electrolyte
Storage temperature is pressed between 0.015~0.025Mpa between 0~30 DEG C, in electrolyte pail pack.
It is negative due to there is electricity in the structure in solvent of electrolyte during storage transport after lithium-ion battery electrolytes factory
Property biggish carbonyl and meta-stable double bond, be easy to act on polar water molecules to form complexing body or reaction generation is corresponding
Alcohol；The molecular activity of electrolyte lithium salt, which also determines itself not, the easy intussusception moisture content of monopole and can further react with moisture content, produce
Life is to the extremely harmful decomposition product hydrogen fluoride of lithium ion battery.And the two is all that temperature is higher, the time is longer, endangers more
Greatly.
Existing example proves；Lithium-ion battery electrolytes hydrolysis reaction is increased with temperature and is greatly speeded up, at 40 DEG C
3~4 times, 60 DEG C when being 20 DEG C of reaction rate constant when 8~12 times when increasing to 20 DEG C.
It has also been found that, some manufacturers using electrolyte accelerate electrolyte from pail pack in order to improve the production efficiency in practice
Interior outflow, it is overproof to electrolyte pail pack plenum.There are accident examples to prove；Electrolyte pail pack is above standard pressure
Power uses, leakage at the deformation of less serious case's pail pack staving, sealing, and serious person causes pail pack explosion, electrolyte spillage to hurt sb.'s feelings.
Therefore, the related electrolyte pail pack temperature, pressure index of the newest professional standard of strict implement is also very important.
But practical to say, status allows of no optimist.
Electrolyte pail pack is inherently designed by the thinking of vessels not under pressure from probe into source.So far, electric
Solution liquid pail pack is not all included in pressure vessel supervision scope.So in use, it is random stronger.Protective gas pressure is too small,
Not only electrolyte is not easy to extrude when in use for producer, but also has temperature reduction pail pack negative pressure occur and the electrolyte moisture absorption is caused to lose
Effect.And protective gas pressure is too high, foam is more when not only electrolyte being be easy to cause to go out liquid, influences reservoir quantity, but also is possible to lead
Cause the secret worry of electrolyte pail pack explosion leakage.
Patent document [CN207482525U] discloses following technology: a kind of " safe lithium ion battery electrolyte packaging
Bucket, belongs to the technology packaging field of lithium-ion battery electrolytes.Including staving and sealing cover;The sealing cover is fixed on the bucket
The top of body;Entry/exit liquid valve, entry/exit air valve and pressure limiting valve are provided on the sealing cover.It is provided by the utility model safety-type
Lithium-ion battery electrolytes pail pack, by being provided with entry/exit liquid valve, entry/exit air valve and pressure limiting valve on sealing cover；It is being electrolysed
In liquid storage, transport or use process, when pressure reaches setting safe pressure in electrolyte pail pack, pressure limiting valve will be arranged
Gas work, avoids pressure from continuing to increase, prevents injury of the electrolyte splash to human body and equipment ".
Above patent document resolving ideas is to install safety (pressure limiting) valve additional on electrolyte pail pack, and this resolving ideas has
It is some insufficient: first is that after superpressure, safety valve action sprays electrolyte out of pail pack to achieve the purpose that reduce pressure.
But this movement inherently has certain risk (electrolyte of ejection can catch fire, can corrode and hurt sb.'s feelings)；Second is that this solves to think
Road is acted just for being more than setting pressure, for there may be pressure to reduce, even then incapability is pail pack generation negative pressure
Power；Third is that the influence of temperature does not refer to.
Patent document [CN206446975U] discloses following technology: " a kind of lithium-ion battery electrolytes rescue bag barrelling,
Including staving, the top of the staving is equipped with sealing cover, and the sealing cover is equipped with liquid valve and intake valve;Inside the staving
Equipped with interlayer, interlayer lower part is equipped with latent room, and interlayer is completely isolated by latent room, and institute's interlayer includes the support connecting with staving side wall
Plate, support plate are provided with round hole, and the support plate top is covered with film layer, and film layer is pressed in support plate by pressing plate, institute
It states film layer and round hole is completely covered ".
According to described in patent document, this patent is beneficial to point: " safety pail pack is equipped with latent room in bottom, normal
When storage and transportation, latent room is isolated by interlayer, and electrolyte is deposited for filling in latent room top, when pail pack internal pressure is excessive, interlayer it is thin
Film layer rupture, a part of electrolyte enter latent interior, can play the role of compensator or trimmer pressure, prevent electrolyte from leaking.Film layer
Thickness determined according to the safe pressure that pail pack can be born ".
For comparing patent document [CN207482525U], the reality of this patent document [CN206446975U] resolving ideas
Matter is the movement with safety valve in rupture disk principle substitution patent document [CN207482525U].Electrolyte is no longer because of safety valve
It acts and sprays, this undoubtedly makes progress in safety.But in terms of point of view of practicability, the electrolyte pail pack of this patent description
Equally temperature is not referred to, is helpless to issuable negative pressure.In concrete operations level, problem is bigger: from electrolyte
Pail pack draws the outlet tube that electrolyte will have a liquid sucting port to be attached to pail pack bottom, the electrolyte packaging that this patent refers to
Bucket, after rupture disk movement, how the electrolyte into " latent room " extrudes pail pack.
Summary of the invention
The present invention overcomes the defects of the prior art, provide a kind of pail pack of energy monitored over time temperature, pressure data.
The present invention is achieved by the following scheme:
Lithium-ion battery electrolytes industry standard is followed, 1.2 cubic metres or so stainless steel pressure vessels (being commonly called as ton bucket in row) is worked out
Electrolyte pail pack as energy complete monitoring temperature, pressure data.By stainless steel plate punching press, welding be made up and down ellipse head,
Columned pressure resistance packaging staving (13) of ladle body, at the top of pail pack, two stainless steel adapter tubes, a short tube at least in introducing bucket
As the airtight air inlet pipe of pail pack (2), air inlet pipe top installs a threeway additional, and threeway connects two quick couplings, and one quickly
The direct-connected portable pressure recorder pressure pipe (5) of connector (6), pressure pipe and portable pressure recorder (4) are integrally fixed.Separately
One quick coupling (7) preparation connection external air source is pressurized to pail pack and uses.One long tube is electrolyte pail pack outlet tube
(1), outlet tube top is equipped with quick coupling (8), and preparation electrolyte is extruded out of pail pack to be used.Quick coupling is fitted with not
It becomes rusty steel protective cover (9), during storage transport, protective cover is secured firmly at the top of pail pack by fixing bolt (3).In protective cover model
In enclosing, a stainless steel buckle (12) is set, and stainless steel buckle is directly welded on pail pack staving (13), in stainless steel buckle
Surface is coated with heat-conducting silicone grease (11), places electron temperature recorder (10) on heat-conducting silicone grease coating.Entire pail pack staving
(13) steel pail pack guarantor is secured firmly to by the support bracket (16) of the locating pad (15) of staving facade and pail pack bottom
It protects in frame (14).
Pail pack (13) preferably SS316L material production, in the condition for having the ability to implement pail pack inside electrochemical passivation
Under, SS304 material can also be selected to make.
Pail pack outlet tube, air inlet pipe, the whole preferred SS316L of threeway, pressure pipe and mating quick coupling in air inlet pipe
Material production.
Electron temperature recorder (10) selects thermistor NTC sensor series, preferably ZTR-i100-T model [monitoring
Temperature range: -30~80 DEG C, temperature accuracy: ± 0.5 DEG C, band scene LED is shown, Measure Precision: 0.1 DEG C, recording capacity:
31104 groups (record once can be recorded continuously 1 year or more within 30 seconds), intra-record slack byte: 2 seconds~24 hours any adjustable.Alarm setting:
The alarm of temperature humidity bound can be set in software；Warning note: overload alarm (built-in buzzer+LED flashing light).Cell type
Number: 3.6V high power lithium battery, communication modes: self-carried USB data line, USB2.0 communication.Battery life: 1 year or more].
Portable pressure recorder (4) selects special pressure to monitor electronic data logging device, preferably ApplentAT4808
Model [integrates sensor, intelligence instrument, pressure bound can alarm in software.Warning note: overload alarm is (built-in
Buzzer+LED flashing light).Live real-time display pressure data.Recordable 1,000,000 datas (under normal circumstances, can be monitored continuously
Pressure data 3 years).Built-in mass storage can read data by USB flash disk at any time.Intrinsic safe explosion-proof product is directly mounted to
Explosion-proof place.Waterproofing grade: IP66, pressure precision: 0.4 grade, power supply mode: 3.6V explosion-proof lithium battery].
The present invention has the following advantages that.
1, using lithium-ion battery electrolytes pail pack external temp, pressure testing and controlling warning device, it is achieved lithium battery
Electrolyte pail pack in storage, transport, use the monitoring of overall process temperature, pressure data.
2, consider electrolyte pail pack temperature, pressure correlation and temperature, pressure variation to lithium ion battery battery comprehensively
Solve liquid quality influence degree, targetedly adopt remedial measures to the prior art (no longer as it is passing those can only solve superpressure
Problem not can solve under-voltage problem, only consider that pressure factor does not account for defective incomplete patent tables such as temperature influence
State) so that the present invention be truly realized lithium battery electrolytes pail pack in storage, transport, using overall process temperature, pressure data
Monitoring, not only overpressure alarm, under-voltage also to alarm.Temperature alarming is also equally can two-way setting alarming value.Ensure pail pack
Storage transport uses full safety, also ensures that the quality of electrolyte is stablized.
3, the present invention fully considers practicability, with it is passing those significantly change existing electrolyte packet safely for pail pack
The scheme of barrelling structure is compared, and original pail pack internal structure is not changed at all, only installs one additional on pail pack external feed stream pipe
A direct-connected manograph of threeway, moisture recorder are also to fix simply by being coated with the stainless steel buckle of heat-conducting silicone grease, peace
It fills extremely simple.
4, the present invention is compared with adding interlayer, external plus safety valve patent formula inside pail pack, complete monitoring temperature pressure
Power is not needed additional adjunction power supply, does not need additional adjunction pipeline, do not need storage, transport at all yet, additionally being done using each side
Any extra preparation.Zhi Xu electrolyte production firm sets pressure, temperature bound according to professional standard index request, deposits
Storage, transport and all monitor, automatically record automatically using whole process, automatic alarm (and selects model to have very high waterproof anti-explosion etc.
Grade, is not made of salt, is not afraid of and is exposed to the sun, can accomplish round-the-clock running).
Detailed description of the invention
Fig. 1 is a kind of pail pack total figure of energy monitored over time lithium battery electrolytes temperature, pressure data of the present invention.
Fig. 2 is core component portable pressure recorder scheme of installation.
Fig. 3 is core component electron temperature recorder scheme of installation.
Symbol description.
1 electrolyte pail pack bottom outlet tube.
2 electrolyte pail pack air inlet pipe.
3 electrolyte pail pack electricity instrument protective cover fixing bolts.
4 portable pressure recorders.
5 portable pressure recorder pressure pipes.
6 portable pressure recorder pressure pipe quick couplings.
7 electrolyte pail pack air inlet pipe quick couplings.
8 electrolyte pail pack outlet tube quick couplings.
9 electrolyte pail pack electricity instrument protective covers.
10 electron temperature recorders.
11 heat transfer silicone grease.
12 electron temperature recorder stainless steel fixed card buckles.
13 electrolyte pail pack stavings.
14 steel electrolyte pail pack protect-ing frame structure.
The fixed pad of 15 electrolyte pail pack facades.
16 electrolyte pail pack bottom support brackets.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings, but the present invention is not limited to the implementations
Example.
Embodiment.
A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data, includes the following steps.
Cleaning drying of the choosing mark ton bucket pail pack of filling 1000 kilograms of lithium-ion battery electrolytes (can).
The quick coupling of ton bucket intake pipe is screwed off, installation one, will be former with diameter threeway at former quick coupling silk mouth
Quick coupling is multiply-connected in threeway, then portable pressure recorder is connected in threeway by same diameter pressure pipe (due to portable
Formula manograph small in volume, pressure pipe can take into account the fixed function of manograph completely).
(staying 30mm distance to have already ensured that not influences at the pail pack upper cover apart from outlet tube quick coupling 30mm
Electrolyte goes out liquid operation), the stainless steel buckle of electron temperature recorder is welded together with argon arc welding.Stainless steel buckle inner surface applies
The heat-conducting silicone grease of cloth a layer thickness about 5mm, is then placed on electron temperature recorder on heat-conducting silicone grease and (is pressing against recorder with finger
Double swerve, it is therefore an objective to recorder backboard and heat-conducting silicone grease be allowed to come into full contact with).
Open portable pressure recorder sealing panel, startup power supply, according to the index tune of newest electrolyte professional standard
Seamless power bound alert data (pressure alarm limit is set to 0.025Mpa, is limited to 0.015Mpa under pressure alarm), finally
Restore portable pressure recorder sealing panel.
Open electron temperature recorder sealing panel, startup power supply, according to newest lithium-ion battery electrolytes professional standard
Index adjust temperature bound alert data (30 DEG C being limited on temperature alarming, 0 DEG C is limited under temperature alarming), it is finally multiple
Primary electron moisture recorder sealing panel.
So far, it has been fully finished the preparation of temperature, pressure complete monitoring.
The pail pack of this monitored over time lithium battery electrolytes temperature, pressure data is vacuumized, by automatic airtight filling
Quality requirement, is reached 1000 kilograms of lithium-ion battery electrolytes loadings of SJ/T11723-2018 index by machine, and uses High Purity Nitrogen
Sealing gland bucket is to pail pack internal pressure 0.020Mpa.
Normal flow is simulated, this example pail pack is moved into finished product storehouse, is sampled and is examined according to original operating instruction by product examine person
It tests, if all referring to reference symbol closes professional standard, the date of production is determined by product examine department, signs and issues verification of conformity.
This example pail pack is sent to lithium ion battery factory in company with batch electrolyte together, and about 800 kilometers of road.It is transporting
On the way, there is temperature overtemperature alarm.Supercargo links up truck man in time, does partial adjustment (when noon is most hot to route plan
Between section parking rest, night encrypt driver's rotation, down time on daytime is recovered), later again without overtemperature alarm.
It is stored up 90 days in lithium ion battery production warehouse memory, when the display of this example pail pack temperature, pressure monitoring data is whole
Between in section, temperature, pressure is all in professional standard prescribed limit.
This example pail pack is sent to lithium ion battery encapsulation production vehicle after lithium ion battery production warehouse memory stores up 90 days
Between, this example pail pack air inlet pipe is connected with encapsulation workshop source nitrogen by encapsulation plant operations work quick coupling while with fastly
This example pail pack outlet tube is connected by quick coupling with packaging line electrolyte storage tank, and nitrogen then is added by this example pail pack air inlet pipe
Air lift high pressure extrudes the electrolyte in this example pail pack.During extruding electrolyte, the appearance of this example pail pack is pressed twice
(subsequent USB flash disk called data, high-visible first time overpressure alarm last 1 point 10 seconds to power overload alarm, and peak overpressure reaches
0.06Mpa；Second of overpressure alarm lasts 45 seconds, and peak overpressure reaches 0.08Mpa).
This example actual verification, the present invention it is practical, not only can complete monitoring electrolyte temperature pressure data and alarm
It reminds, and called data is very convenient, can provide strong evidence to storage, transport, using the potential dispute of each link afterwards.
Claims (6)
1. it is a kind of can monitored over time lithium battery electrolytes temperature, pressure data pail pack, it is characterised in that: pail pack (13) by
Stainless steel plate punching press is welded, and at the top of pail pack, two stainless steel adapter tubes at least in introducing bucket, a short tube is as packet
The airtight air inlet pipe of barrelling (2), air inlet pipe top install a threeway additional, and threeway connects two quick couplings, a quick coupling (6)
Direct-connected portable pressure recorder pressure pipe (5), pressure pipe and portable pressure recorder (4) are integrally fixed, another is fast
Quick coupling (7) preparation connection external air source is pressurized to pail pack to be used, and a long tube is electrolyte pail pack outlet tube (1), out liquid
Tube top end is equipped with quick coupling (8), and preparation electrolyte is extruded out of pail pack to be used.Quick coupling is fitted with stainless steel protection
It covers (9), during storage transport, protective cover is secured firmly at the top of pail pack by fixing bolt (3), within the scope of protective cover, if
A stainless steel buckle (12) is set, stainless steel buckle is directly welded on pail pack staving (13), in stainless steel buckle inner surface, is applied
It is furnished with heat-conducting silicone grease (11), places electron temperature recorder (10) on heat-conducting silicone grease coating, entire pail pack staving (13) passes through
The locating pad (15) of staving facade and the support bracket (16) of pail pack bottom are secured firmly to steel pail pack protect-ing frame structure
(14) in.
2. a kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data according to claim 1, special
Sign is: it installs a threeway additional at the top of air inlet pipe, maintains except original aerating channel, direct-connected portable pressure record
Instrument.
3. a kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data according to claim 2, special
Sign is: the preferred pressure bound alarm of portable pressure recorder type selecting, built-in buzzer and LED flashing light warning note, interior
Set mass storage at any time can by USB flash disk read data, intrinsic safe explosion-proof, waterproofing grade be not less than IP66,0.4 grade of pressure precision
More than, carry explosion-proof lithium battery.
4. a kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data according to claim 1, special
Sign is: electron temperature recorder preferred type selects the compound NTC sensor of thermistor, and temperature humidity or more can be arranged in software
Limit alarm；Built-in buzzer or LED flashing light warning note, monitor temperature range: 0 DEG C ± 50 DEG C are artificial adjustable, and detection accuracy ±
0.5 DEG C, built-in mass storage can read data, intrinsic safe explosion-proof by USB flash disk at any time, and waterproofing grade is not less than IP66, carries
Explosion-proof lithium battery.
5. a kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data according to claim 4, special
Sign is: the stainless steel buckle that electron temperature recorder point is welded in pail pack upper cover is fixed, to reduce temperature measuring error, no
The steel buckle inner surface that becomes rusty is coated with heat-conducting silicone grease.
6. a kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data according to claim 1, special
Sign is: although temperature, pressure monitoring electricity instrument type selecting round-the-clock can operate, considering to meet with during transport, transfer pail pack
The external violence collision met, electron temperature recorder and portable pressure recorder installation site preferred packaging bucket protective cover hang down
In straight projected area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811283678.XA CN109132266A (en) | 2018-10-31 | 2018-10-31 | A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data |
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| CN201811283678.XA CN109132266A (en) | 2018-10-31 | 2018-10-31 | A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data |
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| CN110203505A (en) * | 2019-04-12 | 2019-09-06 | 江苏和成显示科技有限公司 | A kind of storage device of high resistant fluent material |
| CN117699266A (en) * | 2024-02-05 | 2024-03-15 | 天星先进材料科技(江苏)有限公司 | Intelligent storage barrel for lithium battery |
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| CN207482630U (en) * | 2017-11-24 | 2018-06-12 | 江西优锂新材股份有限公司 | A kind of Novel lithium-ion battery electrolyte ton bucket |
| CN108051758A (en) * | 2017-12-27 | 2018-05-18 | 泛恩汇正（天津）科技股份有限公司 | A kind of all-vanadium flow battery manages system |
| CN209410864U (en) * | 2018-10-31 | 2019-09-20 | 广东金光高科股份有限公司 | A kind of pail pack of energy monitored over time lithium battery electrolytes temperature, pressure data |
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