CN105372294A - Lithium ion battery exposure detection method - Google Patents
Lithium ion battery exposure detection method Download PDFInfo
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- CN105372294A CN105372294A CN201510685693.7A CN201510685693A CN105372294A CN 105372294 A CN105372294 A CN 105372294A CN 201510685693 A CN201510685693 A CN 201510685693A CN 105372294 A CN105372294 A CN 105372294A
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- Prior art keywords
- detection probe
- lithium ion
- ion battery
- detection method
- case
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
Abstract
The invention provides a lithium ion battery exposure detection method. The detection method comprises the steps of setting an exposure excitation source; setting a data collection system, determining a trigger mode; inducing exposure; and causing the data collection system to collect data. The lithium ion battery exposure detection method has the advantages that excitation source critical conditions of lithium ion battery exposure, the exposure process and products are detected, targeted prevention and control are performed, and thus the safety of a lithium ion battery is improved greatly.
Description
Technical field
The present invention relates to a kind of battery safety inspection detection method, be specifically related to a kind of lithium ion battery explosion detection method.
Background technology
Lithium ion battery has high working voltage, high-energy-density, height ratio capacity, long circulation life and the advantage such as environmentally friendly because of it and receives extensive concern, becomes one of energy storage technology of current most application prospect.Lithium ion battery is widely used in small electronic device, but safety problem is not solved all the time at all.This also becomes the obstruction that restriction lithium ion battery keeps the large-scale development.Existing lithium ion battery technology system cannot inherently ensure its security, in use has the possibility that thermal runaway and even the security incident such as burning, blast occur.
The security of existing relevant criterion to lithium ion battery proposes certain requirement, lithium ion battery must meet overcharge, a series of safety detection such as short circuit.By inspection detect lithium ion battery in actual applications some similar incidents find out inducement, reduce the probability that has an accident.So need to provide a kind of for the sharp source of lithium ion battery explosion and the detection technique of harm, to understand process and the product of blast, and then improve security performance.
Summary of the invention
For guaranteeing the security performance of lithium ion battery, the invention provides a kind of lithium ion battery explosion detection method, detecting and bringing out the sharp source critical condition of lithium ion battery explosion, and the process of blast and product.
For achieving the above object, the present invention adopts following technical scheme:
A kind of lithium ion battery explosion detection method, described detection method comprises the steps:
Blast is set and swashs source;
Layout data collection system;
Determine triggering mode;
Bring out blast;
Data gathering system collects data.
Described collection system comprises: cell safety case, battery mounting table, gas sampling case,, constant detection probe, video camera, display and controller; The air inlet of described cell safety case is connected with blower fan by blower fan valve; Described battery mounting table is placed in cell safety case, and lithium ion battery to be measured is placed on battery mounting table, and the top of battery mounting table is connected with the sharp source outside cell safety box body by cell safety case; Described gas sampling case is connected with cells burst case by Sampler valves, and described real-time detection probe is placed in the side of the close Sampler valves in cells burst case; Be provided with piston in described gas sampling case, the leading section of piston and gas sampling case forms constant voltage room, and described constant detection probe is placed in the close Sampler valves side of constant voltage indoor; Described real-time detection probe is connected with controller respectively with constant detection probe, and described video camera is connected with controller respectively with display.
Described real-time detection probe is six sensor probes, is respectively: CO detection probe, HF detection probe, CO
2detection probe, O
2detection probe and N
2detection probe.
Described real-time detection probe also comprises temperature sensor, for being detected by the temperature of controller to cell safety case.
Described constant detection probe is five constant detection probe, is respectively: CO detection probe, HF detection probe, CO
2detection probe, O
2detection probe and N
2detection probe.
Described constant detection probe also comprises pressure sensor, for being detected the pressure in cell safety case by controller.
The information of collection is amplified and is transferred to controller by described real-time detection probe and described constant detection probe after filtering.
Described sharp source is thermal excitation, is electrically excited or mechanical excitation; Described thermal excitation adopts electrothermal alloy to heat in the mode of the flames of anger, or adopts the open firing of fuel combustion to produce burning, blast; Described being electrically excited utilizes the mode of electrical equipment generation current to make battery produce burning, blast; Described mechanical excitation mechanically, makes battery deform, damaged generation is burnt, blast.
The triggering mode of described collection system comprises manually, acoustic control or light-operated triggering.
With immediate prior art ratio, the advantage of a kind of lithium ion battery explosion detection method provided by the invention is to detect the sharp source critical condition of bringing out lithium ion battery explosion, and blast process and product, and then make prevention and control targetedly, thus substantially increase the security of lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of detection method.
Embodiment
The present invention is applicable to lithium-ion battery monomer and Li-ion batteries piles as detected object simultaneously, realizes primarily of following steps:
(1) select to swash source and cause lithium ion battery explosion; Sharp source can be thermal excitation, be electrically excited or mechanical excitation;
(2) lithium ion battery surface and around placement record device and collection of products device, pen recorder can be temperature sensor, pressure transducer or video camera, and the sensor directly do not contacted with lithium ion battery is arranged and is in video camera coverage;
(3) triggering mode of setting data record and collection of products device, can be manually, acoustic control or light-operated triggering;
(4) activation data record and collection of products device, starts sharp source and brings out lithium ion battery explosion;
(5) preserve data and product, start air exchange system, collect resultant product;
(6) describe the phenomenon of lithium ion battery explosion with the change of temperature, pressure or flame combustion state, according to thermal excitation, to be electrically excited and mechanical excitation triggers that the time assessment of blast is above swashs the risk that accident is brought out in source separately;
Analyze and bring out the sharp source critical condition of lithium ion battery explosion, and the process of blast and product.
Explosion phenomenon grade form
According to various phenomenon cumulative score, 3-5 is divided into less harmful, and 5-7 is divided into middle harm, and 7-9 is divided into high harm.
Case study on implementation brings out lithium ion battery explosion with overcharge and detection detection method is progressively described.
(1) be placed on by lithium ion battery in the battery explosion case in explosion-proof laboratory, apparatus to cause bursting cable is connected to the charging device outside explosion-proof laboratory;
(2) lithium ion battery surface and around arrange temperature sensor, pressure transducer and video camera, and temperature sensor is connected to the datalogger with explosion protection measures; Be that pressure transducer is arranged in the center of circle with lithium ion battery; Regulate camera angle and picture size, make lithium ion battery and surrounding 1m thereof
3be spatially located at picture center and high-visible;
(3) pressure transducer sounds trigger is set, other sensor manual triggers;
(4) activation data pen recorder, starts apparatus to cause bursting until lithium ion battery explosion by controller;
(5) preserve data and product, start air exchange system, cleaning residue and ejecta;
(6) phenomenon of lithium ion battery explosion is described with the change of temperature, pressure or flame combustion state.Explosion phenomenon grade form.
(7) the sharp source of change, revision test and evaluation procedure, draw the harm in its separate excitation source and mutual Comparison score obtains the maximum sharp source of harm.
It is to be understood that content of the present invention and embodiment are intended to the practical application proving technical scheme provided by the present invention, should not be construed as limiting the scope of the present invention.Those skilled in the art inspired by the spirit and principles of the present invention, can do various amendment, equivalent replacement or improve.But these changes or amendment are all in the protection domain that application is awaited the reply.
Claims (9)
1. a lithium ion battery explosion detection method, is characterized in that: described detection method comprises the steps:
Blast is set and swashs source;
Layout data collection system;
Determine triggering mode;
Bring out blast;
Data gathering system collects data.
2. detection method according to claim 1, is characterized in that: described collection system comprises: cell safety case, battery mounting table, gas sampling case, real-time detection probe, constant detection probe, video camera, display and controller; The air inlet of described cell safety case is connected with blower fan by blower fan valve; Described battery mounting table is placed in cell safety case, and lithium ion battery to be measured is placed on battery mounting table, and the top of battery mounting table is connected with the sharp source outside cell safety box body by cell safety case; Described gas sampling case is connected with cells burst case by Sampler valves, and described real-time detection probe is placed in the side of the close Sampler valves in cells burst case; Be provided with piston in described gas sampling case, the leading section of piston and gas sampling case forms constant voltage room, and described constant detection probe is placed in the close Sampler valves side of constant voltage indoor; Described real-time detection probe is connected with controller respectively with constant detection probe, and described video camera is connected with controller respectively with display.
3. detection method according to claim 2, is characterized in that: described real-time detection probe is six sensor probes, is respectively: CO detection probe, HF detection probe, CO
2detection probe, O
2detection probe and N
2detection probe.
4. detection method according to claim 3, is characterized in that: described real-time detection probe also comprises temperature sensor, for being detected by the temperature of controller to cell safety case.
5. detection method according to claim 2, is characterized in that: described constant detection probe is five constant detection probe, is respectively: CO detection probe, HF detection probe, CO
2detection probe, O
2detection probe and N
2detection probe.
6. detection method according to claim 5, is characterized in that: described constant detection probe also comprises pressure sensor, for being detected the pressure in cell safety case by controller.
7. detection method according to claim 2, is characterized in that: the information of collection is amplified and is transferred to controller by described real-time detection probe and described constant detection probe after filtering.
8. method according to claim 1, is characterized in that: described sharp source is thermal excitation, is electrically excited or mechanical excitation; Described thermal excitation adopts electrothermal alloy to heat in the mode of the flames of anger, or adopts the open firing of fuel combustion to produce burning, blast; Described being electrically excited utilizes the mode of electrical equipment generation current to make battery produce burning, blast; Described mechanical excitation mechanically, makes battery deform, damaged generation is burnt, blast.
9. method according to claim 1 and 2, is characterized in that: the triggering mode of described collection system comprises manually, acoustic control or light-operated triggering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685693.7A CN105372294A (en) | 2015-10-21 | 2015-10-21 | Lithium ion battery exposure detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685693.7A CN105372294A (en) | 2015-10-21 | 2015-10-21 | Lithium ion battery exposure detection method |
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| CN105372294A true CN105372294A (en) | 2016-03-02 |
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| CN201510685693.7A Pending CN105372294A (en) | 2015-10-21 | 2015-10-21 | Lithium ion battery exposure detection method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706705A (en) * | 2016-12-06 | 2017-05-24 | 北京理工大学 | Detection system and probability assessment method for chain explosion of lithium ion battery pack |
| CN107329089A (en) * | 2017-05-25 | 2017-11-07 | 中国电力科学研究院 | A kind of rigid package lithium ion battery explosion propagation effect appraisal procedure and device |
| CN108152154A (en) * | 2017-12-26 | 2018-06-12 | 西安航天精密机电研究所 | A kind of impact sensitivity automatization test system |
| CN108225134A (en) * | 2017-12-26 | 2018-06-29 | 西安航天精密机电研究所 | Sound, light, gas harvester after a kind of priming system explosion |
| CN109856185A (en) * | 2019-03-26 | 2019-06-07 | 中国民用航空飞行学院 | A kind of variable gas ingredient lithium battery fires laboratory |
| CN109959579A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | The measurement of lithium ion battery thermal runaway process gas production and gas collector |
| CN113203958A (en) * | 2021-04-14 | 2021-08-03 | 中国汽车技术研究中心有限公司 | Method for evaluating thermal runaway explosion hazard of battery |
| CN113804855A (en) * | 2021-09-15 | 2021-12-17 | 中国电力科学研究院有限公司 | Battery explosion shock wave overpressure measuring method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107329089A (en) * | 2017-05-25 | 2017-11-07 | 中国电力科学研究院 | A kind of rigid package lithium ion battery explosion propagation effect appraisal procedure and device |
| CN107329089B (en) * | 2017-05-25 | 2021-03-02 | 中国电力科学研究院 | Method and device for evaluating explosion propagation influence of rigid packaging lithium ion battery |
| CN108225134A (en) * | 2017-12-26 | 2018-06-29 | 西安航天精密机电研究所 | Sound, light, gas harvester after a kind of priming system explosion |
| CN108152154B (en) * | 2017-12-26 | 2020-06-23 | 西安航天精密机电研究所 | Automatic impact sensitivity testing system |
| CN108225134B (en) * | 2017-12-26 | 2020-06-23 | 西安航天精密机电研究所 | Sound, light and gas collecting device after explosive device explosion |
| CN108152154A (en) * | 2017-12-26 | 2018-06-12 | 西安航天精密机电研究所 | A kind of impact sensitivity automatization test system |
| CN109856185A (en) * | 2019-03-26 | 2019-06-07 | 中国民用航空飞行学院 | A kind of variable gas ingredient lithium battery fires laboratory |
| CN109959579A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | The measurement of lithium ion battery thermal runaway process gas production and gas collector |
| CN113203958A (en) * | 2021-04-14 | 2021-08-03 | 中国汽车技术研究中心有限公司 | Method for evaluating thermal runaway explosion hazard of battery |
| CN113203958B (en) * | 2021-04-14 | 2022-11-25 | 中国汽车技术研究中心有限公司 | Method for evaluating thermal runaway explosion hazard of battery |
| CN113804855A (en) * | 2021-09-15 | 2021-12-17 | 中国电力科学研究院有限公司 | Battery explosion shock wave overpressure measuring method and system |
| CN113804855B (en) * | 2021-09-15 | 2024-02-27 | 中国电力科学研究院有限公司 | Method and system for measuring overpressure of explosion shock waves of battery |
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Application publication date: 20160302 |