CN110124238A - Using the method for test device test lithium ion battery case fire prevention and control device performance - Google Patents
Using the method for test device test lithium ion battery case fire prevention and control device performance Download PDFInfo
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- CN110124238A CN110124238A CN201910413260.4A CN201910413260A CN110124238A CN 110124238 A CN110124238 A CN 110124238A CN 201910413260 A CN201910413260 A CN 201910413260A CN 110124238 A CN110124238 A CN 110124238A
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- battery
- lithium ion
- battery case
- ion battery
- ferric phosphate
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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Abstract
The present invention relates to a kind of methods using test device test lithium ion battery case fire prevention and control device performance, five groups of battery modules are placed in Battery case, multiple temperature measuring equipments are arranged around test ferric phosphate lithium ion battery monomer, the temperature and battery the temperature inside the box of real-time monitoring test cell position cells adjacent thereto pass through the fire prevention and control performance of temperature data comprehensive judgement prevention and control device.Test method provided by the invention and experimental condition are a kind of scientific, repeated and higher test methods of consistency.
Description
Technical field
The present invention relates to a kind of methods using test device test lithium ion battery case fire prevention and control device performance, are used for
The prevention and control performance test of ferric phosphate lithium ion battery case fire prevention and control device.
Background technique
In recent years, as China's new-energy automobile industrial policy is catalyzed, a large amount of new-energy automobiles are launched, the peace of vehicle
Full traveling faces significant challenge, and especially ferric phosphate lithium ion battery case is once on fire, and less serious case can be such that FCL battery catches fire fires
Burning is scrapped, and severe one, which can ignite, vehicle or even explodes, and causes to vehicle driver and conductor potentially hazardous, has been occurred both at home and abroad
A lot of lithium ion battery of electric automobile fire accidents, cause a large amount of economic loss and casualties.
Ferric phosphate lithium ion battery case fire is typically all the phosphoric acid as caused by ferric phosphate lithium ion battery thermal runaway
A large amount of fuel gas, liquid and solid mixture can be released in battery case after iron lithium ion battery thermal runaway, when encountering
Sparking or other abnormal conditions, mixture can occur to burn or explode.
For lithium ion battery fire incident, part producing unit has developed lithium-ion power battery box fire prevention and control dress
It sets, according to the difference of fire prevention and control device fighting effect, fire prevention and control device is divided into two class of cooling type and non-cooling type.But this two
The prevention and control performance of class fire prevention and control device carries out testing experiment at this stage or according to the company standard that enterprise provides, due to each enterprise
The lithium-ion power battery box fire prevention and control device of industry exploitation is different from structure and principle, and test method and model are also all
It is inconsistent, including battery model, battery box model, battery arrangement mode, thermal runaway triggering mode, fire inhibition etc., cause to survey
Method for testing is multifarious, and such as existing testing method does not have to be used for battery charge, battery placement position, battery
The test requirements document of the parameters such as quantity, the position for overcharging or heating battery and quantity, battery thermal runaway time, battery prespark period,
And a certain item in above-mentioned parameter changes, and will all cause the change of battery fire behavior parameter, leads to the section of test method
The property learned, reliability, consistency and repeatability are unable to get guarantee, can not effectively determine lithium-ion power battery box fire prevention and control
The prevention and control performance of device, the fire prevention and control device for causing prevention and control performance bad can also detect qualification, and come into the market, and apply this
The fire prevention and control device product of sample will cause tight once ferric phosphate lithium ion battery case occurs fire and can not effectively put out
The personal injury and property loss of weight.
Summary of the invention
In view of the situation of the prior art, the present invention provides using test device test lithium ion battery case fire prevention and control dress
The method for setting performance, it is existing to solve for the prevention and control performance test of ferric phosphate lithium ion battery case fire prevention and control device
The problem of lithium ion battery case fire prevention and control device can not effectively determine its prevention and control performance.
To achieve the above object, used technical solution is the present invention: a kind of to test lithium-ion electric using test device
The method of pond case fire prevention and control device performance, the lithium ion battery case fire prevention and control device are ferric phosphate lithium ion battery case
Fire prevention and control device, including fire prevention and control device, fire prevention and control device are connect with medium spray head is inhibited, and the test device includes
Battery case, battery box cover, array battery modules, patch type K-type thermocouple, heating plate, pneumatic cylinder push rod, data acquisition are set
Standby, igniter, every group of battery modules are made of several ferric phosphate lithium ion battery monomers being arranged successively, and feature exists
In: the Battery case is rectangle, and side observation window is equipped with before Battery case, is symmetrically set in the two sides of Battery case
There is a threading hole, pipeline mounting hole is equipped with behind Battery case, is respectively equipped with one piece in Battery case two sides bottom end
Raised plate I；
The battery box cover is rectangle, and top observation window is equipped on battery case capping, is respectively equipped in battery box cover two sides
One piece of raised plate II；
Described battery box cover one end is connect with Battery case, and two pneumatic cylinder push rod bottom ends are separately fixed at Battery case two sides
In raised plate I, two pneumatic cylinder push rod upper ends are separately fixed in the raised plate II of battery box cover two sides, two pneumatic cylinder push rods
It is connect respectively by tracheae with gas source；
Medium spray head is inhibited to be arranged inside battery case by pipeline mounting hole；
Test method is as follows:
One, steps are as follows for ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under heating cycle:
The first step places five groups of battery modules close to middle position in Battery case, specific to arrange are as follows: intermediate cell mould group
All around place one group of battery modules respectively, between five groups of battery modules and Battery case inner wall place array battery modules or
Battery modules ghost identical with battery modules Outside Dimensions, by a LiFePO4 lithium in intermediate cell mould group middle position from
Sub- battery cell takes out to form battery cell vacancy, and two patch type K-type thermocouples and one are arranged in battery cell vacancy
Heating plate, heating plate is bonded with the ferric phosphate lithium ion battery monomer surface of side in monomer vacancy, what is be bonded with heating plate
A patch is respectively set between two adjacent ferric phosphate lithium ion battery monomers of ferric phosphate lithium ion battery monomer or so
Chip K-type thermocouple is respectively set one between intermediate cell mould group is per two adjacent ferric phosphate lithium ion battery monomers
A patch type K-type thermocouple, ferric phosphate lithium ion battery monomer and adjacent LiFePO4 lithium before and after intermediate cell mould group
A patch type K-type thermocouple is respectively set between ion battery monomer, in Battery case at two symmetrical angles, respectively
One patch type K-type thermocouple is set, and the connecting line of several patch type K-type thermocouples is set by a threading hole and data acquisition
The connecting line of standby connection, heating plate is connect by another threading hole with heating device；
Second step, manual control gas source, long-range control pressure cylinder push rod by battery box cover spiral-lock on Battery case, heat by starting
Device, the ferric phosphate lithium ion battery Unit heating being bonded by heating plate pair with it, until ferric phosphate lithium ion battery list
Thermal runaway occurs for body, and the battery safety valve of ferric phosphate lithium cell monomer is opened；
Third step, to the ferric phosphate lithium ion battery monomer adjacent with thermal runaway ferric phosphate lithium ion battery monomer occurs
Thermal runaway occurs, the battery safety valve of ferric phosphate lithium cell monomer is opened, and is closed heating device power supply and is stopped heater plate, fast
Speed control gas source, long-range control pressure cylinder push rod open battery box cover, pass through ignition device；
Ferric phosphate lithium cell monomer thermal runaway in Battery case is released a large amount of fuel gas, liquid by the 4th step, igniter
It is lighted with solid mixture, burn away 60s after on fire, manual control gas source, and long-range control pressure cylinder push rod is by battery box cover
Spiral-lock starts fire prevention and control device on Battery case, inhibits medium spray head injection that medium is inhibited to put out open fire；
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, under fire prevention and control performance meets
Column all require, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case in rear 30min and does not explode；
(d) open fire is put out in rear 30min, and all ferric phosphate lithium ion battery single battery safety valves are not operating；
(e) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple temperature measurement points is not more than 150 in Battery case
℃；
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following all requirements, then
Fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case in rear 30min and does not explode；
(d) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple temperature measurement points is not more than 250 in Battery case
℃；
Two, overcharging ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under operating condition, steps are as follows:
The first of ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test step under the first step, with heating cycle
Walk it is identical, only by Battery case battery cell vacancy heating plate take out, two patch type K-types in battery cell vacancy
A ferric phosphate lithium ion battery monomer is placed between thermocouple, by two LiFePO4s in intermediate cell mould group middle position
Lithium-ion battery monomer is set as two and overcharges ferric phosphate lithium ion battery monomer, and two overcharge ferric phosphate lithium ion battery
Monomer is in parallel, is in an off state between remaining ferric phosphate lithium ion battery monomer, and two in parallel to overcharge LiFePO4 lithium
Ion battery monomer connecting line is connect by another threading hole with fill device power supply is crossed；
Second step, manual control gas source, by battery box cover spiral-lock on Battery case, starting overcharges long-range control pressure cylinder push rod
Equipment power supply overcharges ferric phosphate lithium ion battery monomer to two and thermal runaway occurs；
Third step overcharges ferric phosphate lithium ion battery monomer to two and thermal runaway occurs, and overcharges ferric phosphate lithium ion
The battery safety valve of battery cell is opened, and closes fill device power supply, manual control gas source, long-range control pressure cylinder push rod will be electric
After pond case lid is opened rapidly, ignition device is opened；
4th step, igniter overcharge ferric phosphate lithium ion battery monomer thermal runaway for two in Battery case and release largely
Fuel gas, liquid and solid mixture are lighted, and burn away 60s after on fire, manual control gas source, and long-range control pressure cylinder pushes away
Battery box cover spiral-lock on Battery case, is started fire prevention and control device by bar, inhibits medium spray head injection that medium is inhibited to put out bright
Fire；
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, under fire prevention and control performance meets
Column all require, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case in rear 30min and does not explode；
(d) open fire is put out in rear 30min, and all ferric phosphate lithium ion battery single battery safety valves are not operating；
(e) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple temperature measurement points is not more than 150 in Battery case
℃；
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following all requirements, then
Device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case in rear 30min and does not explode；
(d) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple temperature measurement points is not more than 250 in Battery case
℃。
The beneficial effects of the present invention are: it is this test method and its test bar that the present invention, which is different from existing test method,
Part, the factor that will affect battery fire behavior parameter and fire prevention and control device prevention and control performance have carried out quantitative or qualitative requirement,
On the basis of the repeatability and consistency of guarantee test, it can effectively determine the prevention and control performance of battery case fire prevention and control device, be
A kind of scientific, repeated and higher test method of consistency.
Arrange multiple temperature measuring equipments around test ferric phosphate lithium ion battery monomer, real-time monitoring test cell and its
The temperature and battery the temperature inside the box of adjacent position battery pass through the fire prevention and control performance of temperature data comprehensive judgement prevention and control device.
Detailed description of the invention
Fig. 1 is the schematic diagram of Battery case of the present invention；
Fig. 2 is the top view that Fig. 1 is；
Fig. 3 is the main view that Fig. 1 is；
Fig. 4 is the side view that Fig. 1 is；
Fig. 5 is the structural schematic diagram of lithium ion battery case under heating cycle of the present invention；
Fig. 6 is the structural schematic diagram that the present invention overcharges lithium ion battery case under operating condition.
Specific embodiment
As shown in Figures 1 to 6, using the method for test device test lithium ion battery case fire prevention and control device performance, lithium
Ion battery case fire prevention and control device is ferric phosphate lithium ion battery case fire prevention and control device, including fire prevention and control device, fire
Calamity prevention and control device includes inhibiting medium spray head, and fire prevention and control device is connect with medium spray head is inhibited, and test device includes battery case
Body 1, battery box cover 2, array battery modules 3, patch type K-type thermocouple 4, heating plate 5, pneumatic cylinder push rod 6, data acquisition are set
It is standby, igniter, every group of battery modules 3 are made of several ferric phosphate lithium ion battery monomer 3-1 being arranged successively.
Battery case 1 is rectangle, observation window 1-1 in side is equipped with before Battery case 1, in the two sides of Battery case 1
Face is symmetrically arranged with a threading hole 1-2, pipeline mounting hole 1-3 is equipped with behind Battery case 1, in 1 two sides of Battery case
Bottom end is respectively equipped with one piece of I 1-4 of raised plate.
Battery box cover 2 is rectangle, and observation window 2-1 in top is equipped on 2 face of battery box cover, in 2 two sides of battery box cover point
It She You not one piece of II 2-2 of raised plate.
2 one end connection of battery box cover is connect with Battery case 1, and two 6 bottom ends of pneumatic cylinder push rod are separately fixed at battery
On I 1-4 of raised plate of 1 two sides of cabinet, two 6 upper ends of pneumatic cylinder push rod are separately fixed at the raised plate II of 2 two sides of battery box cover
On 2-2, two pneumatic cylinder push rods 6 are connect by tracheae with gas source respectively, and battery box cover 2 can be opened by two pneumatic cylinder push rods 6
It opens or closes.
Medium spray head is inhibited to be arranged inside battery case by pipeline mounting hole 1-3.
Test method is as follows:
One, steps are as follows for ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under heating cycle:
The first step places five groups of battery modules 3 close to middle position in Battery case 1, specific to arrange are as follows: intermediate cell mould group
3 all around place one group of battery modules 3 respectively, place array battery between 1 inner wall of five groups of battery modules 3 and Battery case
Mould group 3 or battery modules ghost 5 identical with 3 Outside Dimensions of battery modules, by a phosphorus in 3 middle position of intermediate cell mould group
Sour iron lithium ion battery monomer 3-1 takes out to form battery cell vacancy 3-1-2, is arranged two in the 3-1-2 of battery cell vacancy
The ferric phosphate lithium ion of side in a patch type K-type thermocouple 4 and a heating plate 5, heating plate 5 and monomer vacancy 3-1-2
Battery cell 3-1 face paste is closed, in two adjacent phosphorus of the ferric phosphate lithium ion battery monomer 3-1 being bonded with heating plate 5 or so
A patch type K-type thermocouple 4 is respectively set between sour iron lithium ion battery monomer 3-1, in intermediate cell mould group 3 per adjacent
Two ferric phosphate lithium ion battery monomer 3-1 between a patch type K-type thermocouple 4 is respectively set, in intermediate cell mould
It is respectively set between group 3 front and back ferric phosphate lithium ion battery monomer 3-1 and adjacent ferric phosphate lithium ion battery monomer 3-1
In Battery case 1 at two symmetrical angles, a patch type K-type thermoelectricity is respectively set in one patch type K-type thermocouple 4
Even 4, the connecting line of several patch type K-type thermocouples 4 is connect by a threading hole 1-2 with data acquisition equipment, heating plate 5
Connecting line is connect by another threading hole 1-2 with heating device.
Multiple temperature thermocouples are arranged around ferric phosphate lithium ion battery monomer 3-1, are monitored at position adjacent thereto
Temperature in the temperature and Battery case 1 of ferric phosphate lithium ion battery monomer 3-1.
Second step, manual control gas source, long-range control pressure cylinder push rod 6 by 2 spiral-lock of battery box cover on Battery case 1,
Start heating device, the ferric phosphate lithium ion battery monomer 3-1 being bonded with it is heated by heating plate 5, until LiFePO4
Thermal runaway occurs for lithium-ion battery monomer 3-1, and the battery safety valve of ferric phosphate lithium cell monomer 3-1 is opened.
Third step, to the ferric phosphate lithium ion electricity adjacent with thermal runaway ferric phosphate lithium ion battery monomer 3-1 occurs
Thermal runaway also occurs for pond monomer 3-1, and the battery safety valve of ferric phosphate lithium cell monomer 3-1 is opened, and closes heating device power supply and stops
Only heating plate 5 heats, and controls gas source rapidly, long-range control pressure cylinder push rod 6 opens battery box cover 2, passes through igniter point
Fire.
Ferric phosphate lithium cell monomer 3-1 thermal runaway in Battery case 1 is released a large amount of combustible gases by the 4th step, igniter
Body, liquid and solid mixture are lighted, and burn away 60s after on fire, manual control gas source, and long-range control pressure cylinder push rod 6 will
2 spiral-lock of battery box cover starts fire prevention and control device on Battery case 1, inhibits medium spray head injection that medium is inhibited to put out open fire.
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, fire prevention and control performance symbol
Following all requirements are closed, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is using time sets such as stopwatches
Measurement:
A inhibits to put out open fire in medium AEI After End of Injection 5s；
B open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
C open fire puts out Battery case 1 in rear 30min and does not explode；
D open fire is put out in rear 30min, and all ferric phosphate lithium ion battery monomer 3-1 battery safety valves are not operating；
When e open fire puts out rear 15min, the temperature of all 4 temperature measuring points of patch type K-type thermocouple is not more than 150 in Battery case 1
℃；
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following all requirements, then
Fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is using the measurement of the time sets such as stopwatch:
A inhibits to put out open fire in medium AEI After End of Injection 5s；
B open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
C open fire puts out Battery case 1 in rear 30min and does not explode；
When d open fire puts out rear 15min, the temperature of all 4 temperature measuring points of patch type K-type thermocouple is not more than 250 in Battery case 1
℃。
Two, overcharging ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under operating condition, steps are as follows:
The first of ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test step under the first step, with heating cycle
It walks identical, only takes out the heating plate 5 in 1 battery cell vacancy 3-1-2 of Battery case, in the 3-1-2 of battery cell vacancy
A ferric phosphate lithium ion battery monomer 3-1 is placed between two patch type K-type thermocouples 4, among intermediate cell mould group 3
Two ferric phosphate lithium ion battery monomer 3-1 of position are set as two and overcharge ferric phosphate lithium ion battery monomer 3-1-1,
Two overcharge the 3-1-1 parallel connection of ferric phosphate lithium ion battery monomer, are between remaining ferric phosphate lithium ion battery monomer 3-1
Off-state, two in parallel overcharge ferric phosphate lithium ion battery monomer 3-1-1 connecting line by another threading hole 1-2 with
Cross the connection of fill device power supply.
Second step, manual control gas source, long-range control pressure cylinder push rod 6 by 2 spiral-lock of battery box cover on Battery case 1,
Started fill device power supply to two overcharge ferric phosphate lithium ion battery monomer 3-1-1 occur thermal runaway.
Third step overcharges ferric phosphate lithium ion battery monomer 3-1-1 to two and thermal runaway occurs, and overcharges ferric phosphate
The battery safety valve of lithium ion battery monomer 3-1-1 is opened, and fill device power supply was closed, and manual control gas source is long-range to control
After pneumatic cylinder push rod 6 opens rapidly battery box cover 2, ignition device is opened.
4th step, igniter overcharge ferric phosphate lithium ion battery monomer 3-1-1 thermal runaway for two in Battery case 1
It releases a large amount of fuel gas, liquid and solid mixture to light, burn away 60s after on fire, manual control gas source, long-range to control
2 spiral-lock of battery box cover on Battery case 1, is started fire prevention and control device by pneumatic cylinder push rod 6 processed, inhibits medium spray head injection suppression
Medium processed puts out open fire.
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, fire prevention and control performance symbol
Following all requirements are closed, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is using time sets such as stopwatches
Measurement:
A inhibits to put out open fire in medium AEI After End of Injection 5s；
B open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
C open fire puts out Battery case 1 in rear 30min and does not explode；
D open fire is put out in rear 30min, and all ferric phosphate lithium ion battery monomer 3-1 battery safety valves are not operating；
When e open fire puts out rear 15min, the temperature of all 4 temperature measuring points of patch type K-type thermocouple is not more than 150 in Battery case 1
℃。
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following whole and wants
It asks, then device prevention and control performance is qualified, and otherwise to be unqualified, the time is using the measurement of the time sets such as stopwatch:
A inhibits to put out open fire in medium AEI After End of Injection 5s；
B open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
C open fire puts out Battery case 1 in rear 30min and does not explode；
When d open fire puts out rear 15min, the temperature of all 4 temperature measuring points of patch type K-type thermocouple is not more than 250 in Battery case 1
℃。
For testing the equipment requirement of lithium ion battery case fire prevention and control device prevention and control performance:
1, temperature measurement device preferably selects patch type K-type thermocouple, and galvanic couple diameter is not more than 1 mm.
2, data acquisition equipment should be able to be monitored continuously, record test procedure parameter, and the sampling period is not more than 1 s.
3, time measurement device range is not less than 60min, and scale division value is not more than 1s.
4, over-charging of battery equipment charge multiplying power can be continuously adjustable in 0~5C, and voltage can be continuously adjustable in 0~20 V.
5, igniter is fire rod, electronic control ignition head etc..
6, it is as shown in the table to cross the selection of fill device power:
7, Battery case length is 1060mm × 660mm × 250mm, and the observation window of Battery case is using high temperature resistant, high-strength
The glass block of degree, battery box cover can be opened or closed by manually long-range control.
Claims (1)
1. a kind of method using test device test lithium ion battery case fire prevention and control device performance, the lithium ion battery case
Fire prevention and control device is ferric phosphate lithium ion battery case fire prevention and control device, including fire prevention and control device, fire prevention and control device
It is connect with medium spray head is inhibited, the test device includes Battery case (1), battery box cover (2), array battery modules (3), patch
Chip K-type thermocouple (4), heating plate (5), pneumatic cylinder push rod (6), data acquisition equipment, igniter, every group of battery modules
(3) it is made of several ferric phosphate lithium ion battery monomers (3-1) being arranged successively, it is characterised in that: the Battery case (1)
For rectangle, it is equipped with side observation window (1-1) before Battery case (1), is symmetrically arranged with one in the two sides of Battery case (1)
A threading hole (1-2) is equipped with pipeline mounting hole (1-3) behind Battery case (1), in Battery case (1) two sides bottom end
It is respectively equipped with one piece of raised plate I (1-4)；
The battery box cover (2) is rectangle, top observation window (2-1) is equipped on battery box cover (2) face, in battery box cover
(2) two sides are respectively equipped with one piece of raised plate II (2-2)；
Described battery box cover (2) one end is connect with Battery case (1), and two pneumatic cylinder push rod (6) bottom ends are separately fixed at battery
In the raised plate I (1-4) of cabinet (1) two sides, two pneumatic cylinder push rod (6) upper ends are separately fixed at battery box cover (2) two sides
In raised plate II (2-2), two pneumatic cylinder push rods (6) are connect by tracheae with gas source respectively；
Medium spray head is inhibited to be arranged inside battery case by pipeline mounting hole (1-3)；
Test method is as follows:
One, steps are as follows for ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under heating cycle:
The first step places five groups of battery modules (3) close to middle position in Battery case (1), specific to arrange are as follows: intermediate cell
Mould group (3) all around places one group of battery modules (3) respectively, between five groups of battery modules (3) and Battery case (1) inner wall
Array battery modules (3) or battery modules ghost (5) identical with battery modules (3) Outside Dimensions are placed, by intermediate cell mould
One ferric phosphate lithium ion battery monomer (3-1) in group (3) middle position takes out and forms battery cell vacancy (3-1-2),
Two patch type K-type thermocouples (4) of setting and a heating plate (5) in battery cell vacancy (3-1-2), heating plate (5) and list
Ferric phosphate lithium ion battery monomer (3-1) face paste of side is closed in body vacancy (3-1-2), in the phosphorus being bonded with heating plate (5)
It is set respectively between two adjacent ferric phosphate lithium ion battery monomers (3-1) of sour iron lithium ion battery monomer (3-1) left and right
A patch type K-type thermocouple (4) is set, in intermediate cell mould group (3) per two adjacent ferric phosphate lithium ion battery monomers
A patch type K-type thermocouple (4) is respectively set between (3-1), the ferric phosphate lithium ion electricity before and after intermediate cell mould group (3)
A patch type K-type thermocouple is respectively set between pond monomer (3-1) and adjacent ferric phosphate lithium ion battery monomer (3-1)
(4), at two angles symmetrical in Battery case (1), a patch type K-type thermocouple (4), several patch type are respectively set
The connecting line of K-type thermocouple (4) is connect by a threading hole (1-2) with data acquisition equipment, and the connecting line of heating plate (5) is logical
Another threading hole (1-2) is crossed to connect with heating device；
Second step, manual control gas source, long-range control pressure cylinder push rod (6) is by battery box cover (2) spiral-lock in Battery case (1)
On, start heating device, the ferric phosphate lithium ion battery monomer (3-1) being bonded with it is heated by heating plate (5), until phosphorus
Thermal runaway occurs for sour iron lithium ion battery monomer (3-1), and the battery safety valve of ferric phosphate lithium cell monomer (3-1) is opened；
Third step, to the ferric phosphate lithium ion battery adjacent with thermal runaway ferric phosphate lithium ion battery monomer (3-1) occurs
Thermal runaway also occurs for monomer (3-1), and the battery safety valve of ferric phosphate lithium cell monomer (3-1) is opened, and closes heating device power supply
Stop heating plate (5) heating, control gas source rapidly, battery box cover (2) are opened, passed through a little by long-range control pressure cylinder push rod (6)
Fiery device igniting；
Interior ferric phosphate lithium cell monomer (3-1) thermal runaway of Battery case (1) is released a large amount of combustible gases by the 4th step, igniter
Body, liquid and solid mixture are lighted, and burn away 60s after on fire, manual control gas source, long-range control pressure cylinder push rod (6)
By battery box cover (2) spiral-lock on Battery case (1), start fire prevention and control device, inhibits medium spray head injection that medium is inhibited to flutter
Go out open fire；
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, under fire prevention and control performance meets
Column all require, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case (1) in rear 30min and does not explode；
(d) open fire is put out in rear 30min, and all ferric phosphate lithium ion battery monomer (3-1) battery safety valves are not operating；
(e) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple (4) temperature measuring points is little in Battery case (1)
In 150 DEG C；
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following all requirements, then
Fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case (1) in rear 30min and does not explode；
(d) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple (4) temperature measuring points is little in Battery case (1)
In 250 DEG C；
Two, overcharging ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test under operating condition, steps are as follows:
The first of ferric phosphate lithium ion battery case fire prevention and control device prevention and control performance test step under the first step, with heating cycle
Walk it is identical, only by Battery case (1) battery cell vacancy (3-1-2) heating plate (5) take out, in battery cell vacancy
A ferric phosphate lithium ion battery monomer (3-1) is placed in (3-1-2) between two patch type K-type thermocouples (4), it will be intermediate
Two ferric phosphate lithium ion battery monomers (3-1) in battery modules (3) middle position are set as two and overcharge LiFePO4 lithium
Ion battery monomer (3-1-1), two overcharge ferric phosphate lithium ion battery monomer (3-1-1) parallel connection, remaining LiFePO4
It is in an off state between lithium-ion battery monomer (3-1), two in parallel to overcharge ferric phosphate lithium ion battery monomer (3-1-1)
Connecting line is connect by another threading hole (1-2) with fill device power supply is crossed；
Second step, manual control gas source, long-range control pressure cylinder push rod (6) is by battery box cover (2) spiral-lock in Battery case (1)
On, started fill device power supply to two overcharge ferric phosphate lithium ion battery monomer (3-1-1) occur thermal runaway；
Third step overcharges ferric phosphate lithium ion battery monomer (3-1-1) to two and thermal runaway occurs, and overcharges LiFePO4
The battery safety valve of lithium-ion battery monomer (3-1-1) is opened, and fill device power supply was closed, and manual control gas source is long-range to control
After pneumatic cylinder push rod (6) opens rapidly battery box cover (2), ignition device is opened；
4th step, igniter overcharge ferric phosphate lithium ion battery monomer (3-1-1) thermal runaway for two in Battery case (1)
It releases a large amount of fuel gas, liquid and solid mixture to light, burn away 60s after on fire, manual control gas source, long-range to control
Battery box cover (2) spiral-lock on Battery case (1), is started fire prevention and control device by pneumatic cylinder push rod (6) processed, inhibits medium spray head
Injection inhibits medium to put out open fire；
5th step, testing result, if fire prevention and control device belongs to cooling type fire prevention and control device, under fire prevention and control performance meets
Column all require, then fire prevention and control device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case (1) in rear 30min and does not explode；
(d) open fire is put out in rear 30min, and all ferric phosphate lithium ion battery monomer (3-1) battery safety valves are not operating；
(e) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple (4) temperature measuring points is little in Battery case (1)
In 150 DEG C；
If fire prevention and control device belongs to non-cooling type fire prevention and control device, fire prevention and control performance meets following all requirements, then
Device prevention and control performance is qualified, and otherwise to be unqualified, the time is measured using manual time-keeping device:
(a) inhibit to put out open fire in medium AEI After End of Injection 5s；
(b) open fire, which is put out, re-ignition phenomenon should not occurs in rear 30min；
(c) open fire puts out Battery case (1) in rear 30min and does not explode；
(d) when open fire puts out rear 15min, the temperature of all patch type K-type thermocouple (4) temperature measuring points is little in Battery case (1)
In 250 DEG C.
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| CN201910413260.4A CN110124238A (en) | 2019-05-17 | 2019-05-17 | Using the method for test device test lithium ion battery case fire prevention and control device performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021042562A (en) * | 2019-09-10 | 2021-03-18 | 住友建機株式会社 | Work machine |
| CN118040215A (en) * | 2024-04-11 | 2024-05-14 | 深圳永泰数能科技有限公司 | Battery module capable of inhibiting thermal runaway, assembling method and testing method |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021042562A (en) * | 2019-09-10 | 2021-03-18 | 住友建機株式会社 | Work machine |
| JP7309536B2 (en) | 2019-09-10 | 2023-07-18 | 住友建機株式会社 | working machine |
| CN118040215A (en) * | 2024-04-11 | 2024-05-14 | 深圳永泰数能科技有限公司 | Battery module capable of inhibiting thermal runaway, assembling method and testing method |
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Application publication date: 20190816 |