CN204966569U - Lithium ion power batteries with pressure release and explosion -proof function - Google Patents
Lithium ion power batteries with pressure release and explosion -proof function Download PDFInfo
- Publication number
- CN204966569U CN204966569U CN201520670350.9U CN201520670350U CN204966569U CN 204966569 U CN204966569 U CN 204966569U CN 201520670350 U CN201520670350 U CN 201520670350U CN 204966569 U CN204966569 U CN 204966569U
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- China
- Prior art keywords
- lithium
- housing
- ion
- power cell
- pressure release
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- 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.)
- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a lithium ion power batteries with pressure release and explosion -proof function, include: (1) two terminal negative plate (11) and block of casing is located respectively in casing (1), and the electric core in casing (1) inner chamber is located including lid (21) and outer projection (22) of exposing lid (21) of connecting casing (1) to this block, locate roof (14) of lid (21) downside, be equipped with explosion proof hole (19) on this roof (14), and the medial surface of roof (14) is equipped with pressure chamber (15), be equipped with pressure sensor (16) in this pressure chamber (15), be equipped with display screen (4) of electric connection pressure sensor (16) on casing (1), be equipped with a plurality of disappointing hole (23) on projection (22) outside, be equipped with the relief valve on the block, the one end intercommunication of this relief valve loses heart hole (23), the inner chamber of other end intercommunication casing (1). The utility model has the advantages of lose heart and blast proof function, safe and reliable and electric conductive property are good.
Description
Technical field
The utility model relates to a kind of electrokinetic cell, especially relates to a kind of lithium-ion-power cell with pressure release and explosion prevention function.
Background technology
Along with the development of lithium ion battery technology is increasingly mature, the industries such as electric automobile, UPS, energy-accumulating power station also increase gradually to the demand of lithium ion battery, but be directed to lithium ion battery at present, its security performance is a very important link, and this is also a key factor of restriction lithium ion battery development.
At present, lithium-ion-power cell in use, inside battery can produce gas, inside battery air pressure is caused to increase gradually, the phenomenon such as often occur that battery bulging is existing, leakage, aluminum plastic film burst, What is more causes battery explosion when non-normal use because cell internal pressure is excessive, and the people of surrounding or thing are sustained damage.For this reason, lithium-ion-power cell adopts the safety valve with bleeder port, and when internal pressure is excessive, safety valve can be opened automatically from bleeder port pressure release, to prevent the phenomenon of blast.But existing bleeder port is traditionally arranged to be one, when losing heart, internal pressure imbalance causes still there is certain potential safety hazard, and coefficient of safety is also lower.
Utility model content
For overcoming the deficiencies in the prior art, the utility model proposes a kind of lithium-ion-power cell with pressure release and explosion prevention function, safe and reliable and electric conductivity is good.
A kind of lithium-ion-power cell with pressure release and explosion prevention function, comprise: housing, be located at negative plate and the block of housing two end respectively, this block comprises the lid connecting housing and the outer projection exposing outside lid, be located at the battery core in housing cavity, this battery core and outer projection are electrical connected; Be located at the top board of lid downside, this top board is provided with explosionproof hole, and the medial surface of top board is provided with pressure chamber, is provided with pressure sensor in this pressure chamber, and housing is provided with the display screen being electrically connected pressure sensor; Projection is provided with multiple bleeder port outside, and block is provided with safety valve, and one end of this safety valve is communicated with bleeder port, and the other end is communicated with the inner chamber of housing.
Wherein, the lower end of battery core is provided with supporting bracket, and this supporting bracket is connected with negative plate by elastic conduction portion.
Wherein, be provided with gap between lid and housing, the data wire of pressure sensor leads to the outside of housing from this gap.
Wherein, housing is circular, oval or square.
Wherein, the upper end of battery core is provided with backing plate, and backing plate is provided with the sponge for Electolyte-absorptive.
Wherein, battery core comprises positive terminal, negative pole ring and insulation diaphragm, and negative pole ring set is located at the outer surface of positive terminal, and insulation diaphragm is arranged between positive terminal and negative pole ring.
Wherein, the centre of positive terminal buries anode ear and conducting matrix grain underground, and conducting matrix grain and anode ear are connected as a single entity, and anode ear runs through setting along the longitudinal direction of positive terminal, and the upper end of anode ear is exposed the upper surface of positive terminal and is electrically connected with outer projection.
Wherein, outer projection is provided with 2-4 bleeder port uniformly with equal angles.
Compared with prior art, the utility model has following beneficial effect:
The utility model is provided with the safety valve being communicated with bleeder port and lithium-ion-power cell inner chamber on block, and arranges explosionproof hole on top board, reaches and loses heart and explosion prevention function; In the inner chamber of housing, pressure chamber is set, the pressure that pressure sensor detects inner chamber is accurately set in pressure chamber, testing result intuitively can also be shown by the display screen in hull outside face, and the data wire of pressure sensor can also be exposed by the gap extension between housing and lid, provide realization condition for accurately utilizing lithium-ion-power cell chamber pressure to carry out charge and discharge control; Further, the lower end of battery core is arranged on the supporting plate, and this supporting bracket is connected with negative plate by elastic conduction portion, ensure that lithium-ion-power cell has good electric conductivity.To sum up, the utility model lithium-ion-power cell has and loses heart and explosion-proof function, safe and reliable and electric conductivity is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1, the utility model proposes a kind of lithium-ion-power cell with pressure release and explosion prevention function, comprising: be circular, oval or square housing 1, this housing 1 inner chamber is contained with electrolyte; One end of this housing 1 is provided with negative plate 11, and another end is provided with top board 14; Between negative plate 11 and top board 14, battery core is provided with in the inner chamber of housing 1; This top board 14 is provided with explosionproof hole 19; Be provided with pressure chamber 15 at the medial surface of top board 14, in this pressure chamber 15, be provided with pressure sensor 16; Be positioned at top board 14 lateral surface and be provided with block, this block comprises lid 21 and exposes outside the outer projection 22 of lid 21, and this lid 21 and outer projection 22 are formed in one structure, and the anode ear 311 of battery core is electrical connected with outer projection 22; Projection 22 is provided with multiple bleeder port 23 outside, and block is also provided with safety valve, and one end of this safety valve connects bleeder port 23, and the other end connects the inner chamber of housing 1; In addition, be provided with supporting bracket 13 at the lower end of battery core, this supporting bracket 13 is connected with negative plate 11 by elastic conduction portion 12; Be provided with gap between lid 21 and housing 1, the data wire 161 of pressure sensor 16 leads to the outside of housing 1 from this gap; Housing 1 is also provided with the display screen 4 being electrically connected pressure sensor 16, and this display screen 4 can be used for data such as the display electricity of lithium-ion-power cell and the pressure of inner chamber etc.
Battery core is located at the inner chamber of housing 1, and between negative plate 11 and top board 14.The lower end of battery core is arranged in supporting bracket 13, and the upper end of battery core is provided with backing plate 17, and backing plate 17 is provided with the sponge 18 for Electolyte-absorptive.Wherein, battery core comprises positive terminal 31, negative pole ring 32 and insulation diaphragm 33, and negative pole ring 32 is set in the outer surface of positive terminal 31, and insulation diaphragm 33 is arranged between positive terminal 31 and negative pole ring 32.And, anode ear 311 and conducting matrix grain 312 is buried underground in the centre of positive terminal 31, conducting matrix grain 312 and anode ear 311 are connected as a single entity, and anode ear 311 runs through setting along the longitudinal direction of positive terminal 31, and the upper surface that positive terminal 31 is exposed in the upper end of anode ear 311 is connected with outer projection 22.
Operationally, when the air pressure of lithium-ion-power cell inside exceedes the safe atmospheric pressure value of safety valve setting, safety valve is opened, the pressure of housing 1 inner chamber is by bleeder port 23 externally pressure release, after pressure release, safety valve cuts out automatically, thus prevent lithium-ion-power cell because of the excessive generation blast of chamber pressure, guarantee the normal use of lithium-ion-power cell.
In addition, in order to ensure quick and balanced pressure release, outer projection 22 is provided with 2-4 bleeder port 23 uniformly with equal angles.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. one kind has the lithium-ion-power cell of pressure release and explosion prevention function, comprise: housing (1), be located at negative plate (11) and the block of housing (1) two end respectively, this block comprises the lid (21) connecting housing (1) and the outer projection (22) exposing outside lid (21), be located at the battery core in housing (1) inner chamber, this battery core and outer projection (22) are electrical connected; It is characterized in that, this lithium-ion-power cell comprises: the top board (14) being located at lid (21) downside, this top board (14) is provided with explosionproof hole (19), and the medial surface of top board (14) is provided with pressure chamber (15), be provided with pressure sensor (16) in this pressure chamber (15), housing (1) is provided with the display screen (4) being electrically connected pressure sensor (16); Projection (22) is provided with multiple bleeder port (23) outside, and block is provided with safety valve, and one end of this safety valve is communicated with bleeder port (23), and the other end is communicated with the inner chamber of housing (1).
2. there is the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, the lower end of battery core is provided with supporting bracket (13), and this supporting bracket (13) is connected with negative plate (11) by elastic conduction portion (12).
3. there is the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, be provided with gap between lid (21) and housing (1), the data wire (161) of pressure sensor (16) leads to the outside of housing (1) from this gap.
4. have the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, housing (1) is circular, oval or square.
5. have the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, the upper end of battery core is provided with backing plate (17), and backing plate (17) is provided with the sponge (18) for Electolyte-absorptive.
6. there is the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, battery core comprises positive terminal (31), negative pole ring (32) and insulation diaphragm (33), negative pole ring (32) is set in the outer surface of positive terminal (31), and insulation diaphragm (33) is arranged between positive terminal (31) and negative pole ring (32).
7. there is the lithium-ion-power cell of pressure release and explosion prevention function according to claim 6, it is characterized in that, the centre of positive terminal (31) buries anode ear (311) and conducting matrix grain (312) underground, conducting matrix grain (312) and anode ear (311) are connected as a single entity, anode ear (311) runs through setting along the longitudinal direction of positive terminal (31), and the upper end of anode ear (311) is exposed the upper surface of positive terminal (31) and is electrically connected with outer projection (22).
8. there is the lithium-ion-power cell of pressure release and explosion prevention function according to claim 1, it is characterized in that, outer projection (22) is provided with 2-4 bleeder port (23) uniformly with equal angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670350.9U CN204966569U (en) | 2015-09-01 | 2015-09-01 | Lithium ion power batteries with pressure release and explosion -proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670350.9U CN204966569U (en) | 2015-09-01 | 2015-09-01 | Lithium ion power batteries with pressure release and explosion -proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966569U true CN204966569U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520670350.9U Expired - Fee Related CN204966569U (en) | 2015-09-01 | 2015-09-01 | Lithium ion power batteries with pressure release and explosion -proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134554A (en) * | 2017-05-22 | 2017-09-05 | 中聚（杭州）新能源科技有限公司 | The intelligent pressure relief device and intelligence control system of battery bag |
| CN113597708A (en) * | 2020-06-18 | 2021-11-02 | 东莞新能安科技有限公司 | Battery pack with pressure relief structure |
| CN114335880A (en) * | 2020-09-24 | 2022-04-12 | 比亚迪股份有限公司 | Utmost point ear and laminate polymer battery |
-
2015
- 2015-09-01 CN CN201520670350.9U patent/CN204966569U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134554A (en) * | 2017-05-22 | 2017-09-05 | 中聚（杭州）新能源科技有限公司 | The intelligent pressure relief device and intelligence control system of battery bag |
| CN113597708A (en) * | 2020-06-18 | 2021-11-02 | 东莞新能安科技有限公司 | Battery pack with pressure relief structure |
| CN113597708B (en) * | 2020-06-18 | 2022-12-20 | 东莞新能安科技有限公司 | Battery pack with pressure relief structure |
| CN114335880A (en) * | 2020-09-24 | 2022-04-12 | 比亚迪股份有限公司 | Utmost point ear and laminate polymer 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: 20160113 Termination date: 20160901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |