CN201112491Y - Battery used for internal short circuit simulation experiment - Google Patents
Battery used for internal short circuit simulation experiment Download PDFInfo
- Publication number
- CN201112491Y CN201112491Y CNU2007201288153U CN200720128815U CN201112491Y CN 201112491 Y CN201112491 Y CN 201112491Y CN U2007201288153 U CNU2007201288153 U CN U2007201288153U CN 200720128815 U CN200720128815 U CN 200720128815U CN 201112491 Y CN201112491 Y CN 201112491Y
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- battery
- circuit
- internal short
- top cover
- diaphragm paper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a battery used for inner short circuit stimulation experiment. The battery comprises a shell body, a top cover, a positive plate, a negative plate and separator paper. The separator paper is positioned between the positive plate and the negative plate, which is characterized in that through holes are arranged in the middle of the separator paper. The battery also comprises a short circuit stimulation device. The device comprises a moveable insulating plate positioned between the separator paper and the positive or the negative plate, which is capable of moving the insulating plate and covering the through holes of the separator paper fully or partially in the process of moving. The battery is capable of stimulating the short circuit conditions of different positions, different types and different areas, meanwhile, the preferable embodiment also provides an internal parameter of the short-circuit battery in the research of security performance.
Description
Technical field
The utility model relates to a kind of battery, more particularly relates to a kind of battery that is used for the internal short-circuit simulated experiment.
Background technology
At present, advantage such as lithium ion battery is little with its volume, energy is high, pollution-free is used for portable electronic products such as mobile phone, digital camera more and more widely.Along with the extensive use of lithium ion battery, its security performance also more and more comes into one's own.
The means of test battery security performance normally will have battery now and directly place under the extremely harsh test condition, as stove heat, overcharge, fall, vibration, acupuncture, bump, extruding etc., see that whether battery can break or on fire owing to thermal runaway causes under these test conditions, and then estimate the fail safe of battery.These assess means of testing, can only be according to last test results, and the fail safe that draws battery from performance, but can't provide more detailed information for the safety research of battery.In these tests, battery generation internal short-circuit is the latency that causes thermal runaway, but internal short-circuit might not cause thermal runaway.Different internal short-circuit types has different degrees of danger, and battery security is produced different influences.And use existing battery to test the security performance that battery under the different internal short-circuit conditions can not be provided.
The utility model content
The utility model is at using existing battery to carry out the shortcoming that the security performance test can not provide the security performance of battery under the different short circuit condition of inside battery, a kind of battery that is used for the internal short-circuit simulated experiment is provided, uses this battery to carry out battery safety and test the security performance that can be used to study under the different short circuit condition of inside battery.
The utility model provides a kind of battery that is used for the internal short-circuit simulated experiment, this battery comprises housing, top cover, anode pole piece, cathode pole piece and diaphragm paper, described diaphragm paper is between anode pole piece and cathode pole piece, wherein, through hole is arranged in the middle of the described diaphragm paper, described battery also comprises the short circuit analogue means, this device comprises removable spacer, between diaphragm paper and anode pole piece or diaphragm paper and cathode pole piece, and the through hole that this removable spacer can the described diaphragm paper of all or part of covering in moving process.
The battery that is used for the internal short-circuit simulated experiment provided by the utility model, the through hole of diaphragm paper exposed the size variation of area when the removable spacer of the position of offering by the through hole of described diaphragm paper, area and in use described short circuit analogue means moved, the short-circuit conditions of the inner various degree of simulated battery, and in preferred implementation of the present utility model by being used with various transducers, the detailed data of battery performance in the time of can obtaining about internal short-circuit, these data can be used for the security performance research of battery.So just the battery security research range is expanded to inside battery, can carry out more deep research, provide theoretical foundation for improving battery safety.
Description of drawings
Fig. 1 is the structural representation that is used for the battery of internal short-circuit experiment provided by the utility model;
Fig. 2 is the structural representation of the short circuit analogue means of the battery that is used for internal short-circuit experiment provided by the utility model;
Fig. 3 is the enlarged drawing at A place among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model provides a kind of battery that is used for the internal short-circuit simulated experiment, this battery comprises housing 6, top cover 7, anode pole piece 9, cathode pole piece 10 and diaphragm paper 11, described diaphragm paper 11 is between anode pole piece 9 and cathode pole piece 10, wherein, in the middle of the described diaphragm paper 11 through hole 12 is arranged, described battery also comprises the short circuit analogue means, this device comprises removable spacer 1, between diaphragm paper 11 and anode pole piece 9 or diaphragm paper 11 and cathode pole piece 10, and this removable spacer 1 can all cover in moving process or part covers or the through hole 12 of the described diaphragm paper of zero covering.
Wherein, the through hole 12 of described diaphragm paper can be opened the diverse location at diaphragm paper 11, is used to simulate the situation of different internal short-circuits position.The shape of through hole 12 can be different shape such as circular, square, and the size of through hole 12 also can be any size.As known in those skilled in the art, described anode pole piece 9 and cathode pole piece 10 all comprise collector and the utmost point material that is coated on this collector, and have the position of utmost point material coating and the position that does not have utmost point material to apply on the collection liquid surface, pass through the adjustment of through hole 12 positions of diaphragm paper like this, can also realize the simulation of four kinds of internal short-circuit types: anodal material is expected and the negative current collector contact short circuit with negative pole material contact short circuit, plus plate current-collecting body and negative pole material contact short circuit, plus plate current-collecting body and negative current collector contact short circuit, positive pole.
The removable spacer 1 of described short circuit analogue means can be chosen any material of non-conductive son, as insulating material, for the situation of more approaching true battery, is preferably and battery separator paper 11 identical materials, as PP, PE, PP three laminated assembly diaphragm papers.According to the shape and the size of the through hole 12 of described diaphragm paper, removable spacer 1 should be suitable shape and size can all cover this through hole 12.The shape of removable spacer 1 can be the identical shape of top and the bottom width, also can be the different shape of top and the bottom width, as can selecting the shape of broad for use to the contributive part of through hole of diaphragm paper as described in covering in the removable spacer, and other parts can be selected narrower shape for use.As shown in Figure 3, expose the size variation of area by through hole 12 in removable spacer 1 moving process, but the situation of the different internal short-circuit areas of simulated battery.
Described short circuit analogue means can also comprise telescopic tube 3, this telescopic tube 3 has blind end and openend, the centre has Collapsible structure, described removable spacer 1 stretches out the top cover 7 of battery, blind end through openend and telescopic tube 3 is fixed, telescopic tube 3 openend and 7 airtight connections of top cover, encapsulant can use epoxide-resin glue or other any encapsulants.According to an embodiment of the present utility model, porose on the described top cover 7, described removable spacer 1 reaches outside batteries by this hole, and be fixedly connected with the blind end of telescopic tube 3, the openend of described telescopic tube 3 covers the hole of described top cover 7 and sealing and fixing on this top cover 7.At this moment, it is narrower that described removable spacer 1 is preferably upper part, the shape of lower part broad, the upper part that can be convenient to this removable spacer 1 like this can pass the hole of described top cover 7 and stretch in the telescopic tube 3, and lower part can all cover the through hole 12 of described diaphragm paper.
In this case, described short circuit analogue means preferably can also comprise tube connector 2, as shown in Figure 2, one end of this tube connector 2 is fixedlyed connected with the openend of described telescopic tube 3, the other end and 7 airtight connections of top cover, described telescopic tube 3 is by the other end and 7 airtight connections of top cover of tube connector 2, and encapsulant can use epoxide-resin glue or other any encapsulants.These tube connector 2 both ends opens.When stretching telescopic tube 3 detached removable spacer 1, this tube connector 2 can be used as the space of the removable spacer 1 of storage.Can use the made tube connector 2 different, so that fixedly connected with top cover 7 with telescopic tube 3.In addition, this tube connector 2 should be as far as possible little under the situation of condition permission, increases the influence to true battery situation simulation that causes to reduce the inside battery space.
Because situations such as internal short-circuit may cause thermal runaway to blast to catch fire, the materials used of described telescopic tube 3 and tube connector 2 must be able to be born temperature more than 200 ℃ and 2MPa with upward pressure.Preferably, the material of telescopic tube is plastics, and the material of tube connector is a copper.
In order to measure the parameter of internal short-circuit of battery point, the described battery that is used for the internal short-circuit simulated experiment is preferably and can also comprises transducer 5, as shown in Figure 1, described transducer 5 is positioned at the space that housing and top cover surround, and stretch out or stretch out top cover by lead, the part sealing that described transducer 5 or lead contact with top cover, encapsulant can use epoxide-resin glue or other any encapsulants.Transducer 5 is positioned near the through hole of described diaphragm paper.In an embodiment of the present utility model, porose on the top cover 7, transducer 5 stretches out battery by the hole of top cover 7, and this hole sealing.Described transducer 5 comprises at least a in temperature sensor, the pressure sensor, can select according to the experiment needs.Temperature sensor can use thermocouple, can measure near the temperature the short dot, and pressure sensor can the working pressure transmitter, the variation that can measure cell internal pressure.
The concrete using method of battery that is used for internal short-circuit experiment provided by the utility model is as follows.Under normal circumstances, removable spacer 1 is close to the through hole 12 of diaphragm paper, guarantees not take place internal short-circuit.Then when arriving certain experiment condition, the head of telescopic tube 3 upwards stretches, the through hole 12 of removable spacer 1 from diaphragm paper detached, so through hole 12 places at diaphragm paper, anode pole piece 9 and the cathode pole piece 10 realization internal short-circuit that contacts, but the internal short-circuit situation of simulated battery under certain experiment condition.Simultaneously, the related data that transducer 5 can synchro measure internal short-circuit of battery point is used for battery safety research.
The battery that is used for the internal short-circuit simulated experiment that the utility model provides, can offer the adjustment of removable spacer position in the through hole of diverse location, different area and the use by making this cell process septation paper, realize the simulation of the various different situations of relevant internal short-circuit.
Below by embodiment the utility model is described in more detail.
Present embodiment is used to the battery that illustrates that the utility model provides.
Adopt the lithium ion battery of LP053450 model to be made into the battery A that is used for the internal short-circuit simulated experiment, nominal capacity 860mAh, the through hole 12 of diaphragm paper is opened between positive pole material and negative pole material, and through hole 12 is the square of 3mm * 3mm, the material of removable spacer 1 is elected as and the battery separator paper identical materials, the lower part of this removable spacer 1 is the square of 10mm * 10mm, upper part is the rectangle of 60mm * 2mm, tube connector 2 is that diameter is 4mm, length is that the material of the both ends open of 20mm is the pipe of copper, telescopic tube 3 has openend and blind end, there is Collapsible structure the centre, and is that diameter is 5mm, length is the plastic round tube of 30mm.The K type thermocouple measurement internal temperature that transducer 5 adopts Shanghai Sang Rui Electrical Appliances Co., Ltd to produce, have the hole that supplies removable spacer 1 and thermocouple to pass on the top cover 7 of battery, removable spacer 1 stretches out battery cap 7 via tube connector 2 by the hole on the battery cap 7, the openend of telescopic tube 3 is fixedlyed connected with the blind end of telescopic tube 3, tube connector 2 one ends and 7 airtight connections of battery cap, the openend of the other end and telescopic tube 3 is tightly connected, thermocouple is positioned at through hole 12 positions that inside battery closes on diaphragm paper, stretch out battery by another hole on the top cover 7, and the part that thermocouple contacts with top cover 7 sealing, the encapsulant that more than needs sealing place to select for use all is an epoxide-resin glue.Removable spacer 1 covers the through hole 12 of diaphragm paper fully under the initial situation, guarantees that internal short-circuit does not take place at this place.
Present embodiment is used to the battery that illustrates that the utility model provides.
Adopt the method identical with embodiment 1 to be made into the battery B that is used for the internal short-circuit simulated experiment, difference is that the through hole of embodiment 2 is the square of 5mm * 5mm.
Present embodiment is used to the battery that illustrates that the utility model provides.
Adopt the method identical with embodiment 1 to be made into the battery C that is used for the internal short-circuit simulated experiment, difference is that the through hole of embodiment 3 septation paper opens between negative current collector and plus plate current-collecting body.
Embodiment 4
Present embodiment is used to the battery that illustrates that the utility model provides.
Adopt the method identical with embodiment 1 to be made into the battery D that is used for the internal short-circuit simulated experiment, difference is that the through hole of embodiment 4 septation paper opens between plus plate current-collecting body and negative pole material.
Present embodiment is used to illustrate the performance when battery of the present utility model is used for the safety test experiment.
Test result shows as table 1:
Table 1
| Project | |
Embodiment 6 | |
Embodiment 8 | |
|
| Maximum temperature/℃ | 130 | 400 | 153 | 178 | 135 | 400 |
| Whether explode | Not | Be | Not | Not | Not | Be |
As can be seen from Table 1, at different location of short circuit, under different short-circuit-type and the different safety test condition, the degree of danger difference of internal short-circuit.Use this device to carry out safety research, the details of internal short-circuit of battery can be provided, make the cell safety Journal of Sex Research more deep, provide theoretical foundation for improving battery safety.
Claims (7)
1. battery that is used for the internal short-circuit simulated experiment, this battery comprises housing, top cover, anode pole piece, cathode pole piece and diaphragm paper, described diaphragm paper is between anode pole piece and cathode pole piece, it is characterized in that, through hole is arranged in the middle of the described diaphragm paper, described battery also comprises the short circuit analogue means, this device comprises removable spacer, between diaphragm paper and anode pole piece or diaphragm paper and cathode pole piece, and this removable spacer can all cover in moving process or part covers the through hole of described diaphragm paper.
2. the battery that is used for the internal short-circuit simulated experiment according to claim 1, it is characterized in that, described short circuit analogue means also comprises telescopic tube, this telescopic tube has blind end and openend, described removable spacer stretches out the top cover of battery, blind end through openend and telescopic tube is fixed, telescopic tube openend be connected with top cover is airtight.
3. the battery that is used for the internal short-circuit simulated experiment according to claim 2, it is characterized in that, described short circuit analogue means also comprises tube connector, one end of described tube connector is fixedlyed connected with the openend of described telescopic tube, and described telescopic tube is connected with top cover is airtight by the other end of tube connector.
4. the battery that is used for the internal short-circuit simulated experiment according to claim 1, it is characterized in that, described short circuit analogue means also comprises transducer, described transducer is positioned at the space that housing and top cover surround, and stretch out or stretch out top cover, the part sealing that described transducer or lead contact with top cover by lead.
5. the battery that is used for the internal short-circuit simulated experiment according to claim 4 is characterized in that described transducer is positioned near the through hole of described diaphragm paper.
6. according to claim 4 or the 5 described batteries that are used for the internal short-circuit simulated experiment, it is characterized in that described transducer comprises at least a in temperature sensor, the pressure sensor.
7. the battery that is used for the internal short-circuit simulated experiment according to claim 6 is characterized in that described temperature sensor is a thermocouple, and described pressure sensor is a pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201288153U CN201112491Y (en) | 2007-08-20 | 2007-08-20 | Battery used for internal short circuit simulation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201288153U CN201112491Y (en) | 2007-08-20 | 2007-08-20 | Battery used for internal short circuit simulation experiment |
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| Publication Number | Publication Date |
|---|---|
| CN201112491Y true CN201112491Y (en) | 2008-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201288153U Expired - Fee Related CN201112491Y (en) | 2007-08-20 | 2007-08-20 | Battery used for internal short circuit simulation experiment |
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| Country | Link |
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| CN (1) | CN201112491Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645001A (en) * | 2017-08-21 | 2018-01-30 | 上海空间电源研究所 | A kind of experimental rig and test method for simulating lithium battery internal short-circuit |
| CN108828384A (en) * | 2018-02-28 | 2018-11-16 | 中国电力科学研究院有限公司 | A kind of simulator and analogy method of battery internal short-circuit |
| CN109346661A (en) * | 2018-10-16 | 2019-02-15 | 清华大学 | Internal short-circuit triggers battery and battery internal short-circuit triggering method |
| CN112838286A (en) * | 2014-06-30 | 2021-05-25 | 赛尔格有限责任公司 | System and method for distinguishing short circuit in battery |
| CN114200314A (en) * | 2020-09-18 | 2022-03-18 | 比亚迪股份有限公司 | System and test method for simulating thermal runaway induced by short circuit in battery |
| CN115219923A (en) * | 2022-04-12 | 2022-10-21 | 湘潭大学 | Device and method for simulating short circuit in lithium ion soft package battery |
-
2007
- 2007-08-20 CN CNU2007201288153U patent/CN201112491Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838286A (en) * | 2014-06-30 | 2021-05-25 | 赛尔格有限责任公司 | System and method for distinguishing short circuit in battery |
| CN107645001A (en) * | 2017-08-21 | 2018-01-30 | 上海空间电源研究所 | A kind of experimental rig and test method for simulating lithium battery internal short-circuit |
| CN108828384A (en) * | 2018-02-28 | 2018-11-16 | 中国电力科学研究院有限公司 | A kind of simulator and analogy method of battery internal short-circuit |
| CN108828384B (en) * | 2018-02-28 | 2023-12-19 | 中国电力科学研究院有限公司 | Simulation device and simulation method for internal short circuit of battery |
| CN109346661A (en) * | 2018-10-16 | 2019-02-15 | 清华大学 | Internal short-circuit triggers battery and battery internal short-circuit triggering method |
| CN114200314A (en) * | 2020-09-18 | 2022-03-18 | 比亚迪股份有限公司 | System and test method for simulating thermal runaway induced by short circuit in battery |
| CN115219923A (en) * | 2022-04-12 | 2022-10-21 | 湘潭大学 | Device and method for simulating short circuit in lithium ion soft package battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |