CN110137583A - Safe lithium battery - Google Patents
Safe lithium battery Download PDFInfo
- Publication number
- CN110137583A CN110137583A CN201910487903.XA CN201910487903A CN110137583A CN 110137583 A CN110137583 A CN 110137583A CN 201910487903 A CN201910487903 A CN 201910487903A CN 110137583 A CN110137583 A CN 110137583A
- Authority
- CN
- China
- Prior art keywords
- oil pocket
- phase
- expansion chamber
- battery
- insulation oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of safe lithium battery, includes the main cavity for being formed with relief hole in shell；It is equipped with battery inner core in main cavity, further includes having insulation oil pocket in shell；Separated between main cavity, insulation oil pocket by partition, partition center is provided with hole, and film is equipped at hole, and film generates breakage when being under pressure；Insulating oil is intracavitary to be marked with insulating oil, and insulation oil pocket is equipped with expansion chamber away from the side of main cavity, and the oil pocket that insulate is separated with expansion chamber by piston；Expansion chamber is connected with the liquid storage chamber being set in battery inner core, and phase-change liquid is full of in expansion chamber and liquid storage chamber, and the boiling point of phase-change liquid is 50 ° to 100 °；When the phase-change liquid vaporized expanding, pushes the piston that the intracavitary insulating oil of the insulating oil is crushed the film and be injected into main chamber body.The lithium battery can make a response in time when overheat condition occurs in inside battery, improve the safety coefficient of battery.
Description
Technical field
The present invention relates to field of batteries, particularly, are related to a kind of lithium battery.
Background technique
People usually will use battery in daily life, and wherein lithium battery is because having energy density height, cycle life
The advantages that high and enjoy great popularity；However at it in use, cell degradation, using due to lack of standardization etc., will appear lithium once in a while
Battery overheat causes the case where burning is even exploded, and has some potential safety problems.
Summary of the invention
In view of the above-mentioned problems, the lithium battery can be in battery the purpose of the present invention is to provide a kind of safe lithium battery
Making a response in time when overheat condition occurs in portion, eliminates and generates the burning even hidden danger of explosion, improves the safety coefficient of battery.
The technical solution adopted by the present invention to solve the technical problems is: the safe lithium battery includes shell, the shell
Interior includes the main cavity for being formed with relief hole；It is equipped with battery inner core in main chamber body, further includes having insulation oil pocket in the shell；
Separated between main chamber body, insulation oil pocket by partition, the partition center is provided with hole, and equipped with thin at described hole
Film, the film generate breakage when being under pressure；The insulating oil is intracavitary to be marked with insulating oil, and the insulation oil pocket deviates from main chamber
The side of body is equipped with expansion chamber, and the insulation oil pocket and expansion chamber are separated by piston；The expansion chamber be set to battery in
Liquid storage chamber in core is connected, and phase-change liquid is full of in expansion chamber and liquid storage chamber, the boiling point of the phase-change liquid be 50 ° extremely
100°；When the phase-change liquid vaporized expanding, push the piston that the intracavitary insulating oil of the insulating oil is crushed the film
And it is injected into main chamber body.
Preferably, it is conductive to be made in the positive and negative anodes being inserted into the battery inner core respectively there are two the liquid storage chamber tools
In stick.
Preferably, the phase-change liquid is acetic acid or water.
The beneficial effects of the present invention are: the safe lithium battery is when in use, described if generating failure overheat condition occurs
Phase-change liquid in liquid storage chamber is heated to boiling point, thus vaporized expanding, and then push the piston by the insulation oil pocket
Interior insulating oil crushes the film and is injected into main chamber body, makes the positive and negative pole material mutually insulated in battery inner core,
To stop cell reaction, eliminate safe hidden trouble.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of safety lithium battery.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
In the embodiment shown in fig. 1, which includes shell 1, includes the main chamber for being formed with relief hole in the shell 1
Body 2；It is equipped with battery inner core 20 in main chamber body 2, further includes having insulation oil pocket 3 in the shell 1；Main chamber body 2, insulation
Separated between oil pocket 3 by partition 6,6 center of partition is provided with hole, and film 60 is equipped at described hole, described thin
Film 60 generates breakage when being under pressure；Insulating oil is marked in the insulation oil pocket 3, the insulation oil pocket is away from main cavity 2
Side is equipped with expansion chamber 4, and the insulation oil pocket 3 is separated with expansion chamber 4 by piston 7；The expansion chamber 4 be set in battery
Liquid storage chamber 8 in core 20 is connected, and phase-change liquid is full of in expansion chamber 4 and liquid storage chamber 8, and the boiling point of the phase-change liquid is
50 ° to 100 °；When the phase-change liquid vaporized expanding, push the piston 7 that the insulating oil in the insulation oil pocket 3 is crushed institute
It states film 60 and is injected into main chamber body 2.
In addition, being made in the positive and negative anodes conductive rod being inserted into the battery inner core 20 respectively there are two the tools of liquid storage chamber 8
In；To avoid occupying space excessive in main chamber body.The phase-change liquid is acetic acid or water, such as needs higher safety
Coefficient, then more preferably with acetic acid.
Above-mentioned safe lithium battery when in use, if generate failure there is overheat condition, the phase-change liquid in the liquid storage chamber 8
It is heated to boiling point, thus vaporized expanding, and then push the piston 7 that the insulating oil in the insulation oil pocket 3 is crushed institute
It states film 60 and is injected into main chamber body 2, make the positive and negative pole material mutually insulated in battery inner core 20, to stop battery
Reaction, eliminates safe hidden trouble.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, made any modification, equivalent replacement be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of safe lithium battery, including shell (1), it is characterised in that: include the main chamber for being formed with relief hole in the shell (1)
Body (2)；Battery inner core (20) are equipped in main chamber body (2), further include there are insulation oil pocket (3) in the shell (1)；The master
Separated between cavity (2), insulation oil pocket (3) by partition (6), partition (6) center is provided with hole, and at described hole
Equipped with film (60), the film (60) generates breakage when being under pressure；It is marked with insulating oil in the insulation oil pocket (3), institute
It states insulation oil pocket and is equipped with expansion chamber (4) away from the side of main cavity (2), and the insulation oil pocket (3) and expansion chamber (4) pass through work
(7) are filled in separate；The expansion chamber (4) is connected with the liquid storage chamber (8) being set in battery inner core (20), and expansion chamber (4) and storage
Phase-change liquid is full of in sap cavity (8), the boiling point of the phase-change liquid is 50 ° to 100 °；When the phase-change liquid vaporized expanding, push away
The piston (7) is moved the insulating oil in insulation oil pocket (3) is crushed the film (60) and is injected into main chamber body (2)
In.
2. safe lithium battery according to claim 1, it is characterised in that: there are two liquid storage chamber (8) tools, makes respectively
In the positive and negative anodes conductive rod being inserted into the battery inner core (20).
3. safe lithium battery according to claim 1, it is characterised in that: the phase-change liquid is acetic acid or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487903.XA CN110137583A (en) | 2019-06-05 | 2019-06-05 | Safe lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487903.XA CN110137583A (en) | 2019-06-05 | 2019-06-05 | Safe lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110137583A true CN110137583A (en) | 2019-08-16 |
Family
ID=67580319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910487903.XA Withdrawn CN110137583A (en) | 2019-06-05 | 2019-06-05 | Safe lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067067A (en) * | 2019-12-13 | 2021-07-02 | 比亚迪股份有限公司 | Single battery, battery module with same and power battery pack |
| CN113067080A (en) * | 2019-12-13 | 2021-07-02 | 比亚迪股份有限公司 | Battery and battery module, power battery pack and electric automobile with same |
-
2019
- 2019-06-05 CN CN201910487903.XA patent/CN110137583A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067067A (en) * | 2019-12-13 | 2021-07-02 | 比亚迪股份有限公司 | Single battery, battery module with same and power battery pack |
| CN113067080A (en) * | 2019-12-13 | 2021-07-02 | 比亚迪股份有限公司 | Battery and battery module, power battery pack and electric automobile with same |
| CN113067067B (en) * | 2019-12-13 | 2023-10-13 | 比亚迪股份有限公司 | Single battery, battery module with single battery and power battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016015603A1 (en) | Lithium battery and electric vehicle using same | |
| CN105552372B (en) | A kind of N doped carbons microfiber material and its preparation method and application | |
| CN101106185A (en) | Highly secure lithium ion dynamic battery and its assembly method | |
| CN110137583A (en) | Safe lithium battery | |
| CN104953061A (en) | Battery shell, making method thereof, and battery with battery shell | |
| CN110190238A (en) | Button-type battery with access tripping protection function | |
| CN107579282A (en) | A kind of Soft Roll silicon-carbon cathode formation of Li-ion batteries technique | |
| CN110148693A (en) | Anti- overheat lithium battery | |
| KR20190097238A (en) | Safe, high-energy USB rechargeable battery | |
| CN209607766U (en) | Battery case and battery | |
| CN109585747A (en) | Explosion-proof lithium battery | |
| CN206134852U (en) | High energy density's 18650 batteries on safe type | |
| CN214013024U (en) | Fireproof electric vehicle lithium battery pack | |
| CN207353297U (en) | A kind of damping lead-acid accumulator plastic housing | |
| CN201812886U (en) | Thermal battery activating device | |
| CN214313410U (en) | Battery casing with explosion-proof groove | |
| CN206947386U (en) | A kind of core shell structure of lithium battery | |
| CN209282282U (en) | A kind of power battery explosion protection valve and power battery | |
| CN110224199A (en) | A kind of anti-explosion battery | |
| CN207624783U (en) | A kind of high reliability lithium battery group of security protection technology | |
| CN207967203U (en) | A kind of dynamic lithium battery increasing electrolyte wellability | |
| CN104218201B (en) | A kind of lithium battery with fireproof anti-explosion device and the electric car using the battery | |
| CN206610855U (en) | A kind of battery anti-explosion piece | |
| CN106410079A (en) | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance | |
| CN206541902U (en) | A kind of lithium battery with anti-explosion mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190816 |