CN202695588U - Pressure relief structure and energy storage device using same - Google Patents
Pressure relief structure and energy storage device using same Download PDFInfo
- Publication number
- CN202695588U CN202695588U CN2012202128523U CN201220212852U CN202695588U CN 202695588 U CN202695588 U CN 202695588U CN 2012202128523 U CN2012202128523 U CN 2012202128523U CN 201220212852 U CN201220212852 U CN 201220212852U CN 202695588 U CN202695588 U CN 202695588U
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- pressure relief
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- 238000004146 energy storage Methods 0.000 title claims abstract description 38
- 238000004880 explosion Methods 0.000 claims description 59
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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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- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a pressure relief structure, comprising a plurality of pressure relief patterns, wherein the pressure relief patterns are arranged on a shell plate, each pressure relief pattern comprises a guide line, a burst line and a buffer line; the buffer lines are arranged between the guide lines and the burst lines to connect the guide lines and the burst lines, and the bursts lines are mutually connected to form a continuous burst line. The pressure relief structure can prevent the phenomenon that an energy storage device is exploded due to the over high air pressure in the energy storage device, can strengthen the use safety of the energy storage device, and is manufactured simply and fast. The utility model also provides the energy storage device using the pressure relief structure.
Description
Technical field
The relevant a kind of pressure relief of this creation refers to a kind of coverboard pressure relief that prevents the energy storage device that the energy storage device air pressure inside is excessive especially.
Background technology
Energy storage device, take secondary cell as example, it has reusable, environmental protection, more can not cause the plurality of advantages such as secondary environmental pollution generally to be familiar with by the people, and compare with the early stage of development, it is ripe that existing secondary cell technology is tending towards, and its energy storage density has also improved many, therefore also little with volume, the competitive advantage of carrying convenience, but because secondary cell fills improper, the process of discharge because of chemical reaction meeting evolved gas, makes the secondary cell internal gas pressure too high, make the explosion of secondary cell possibility, therefore on secondary cell, a pressure relief device is set internal gas is released, but the preventing secondary inside battery produces blast because of hypertonia.
Fig. 1 is existing energy storage device stereogram, as shown in the figure, end cap 50 is arranged at housing 52 two ends of energy storage device, and at least one perforation 54 is set on 50, in the perforation 54 and utilize radium-shine welding, at least one safety valve 56 is welded in the perforation 54 on 50, therefore, when the energy storage device internal gas pressure is too high, namely break through safety valve 56, internal gas pressure is released.But too small by safety valve 56, the degree of losing heart is limited, and it is slow to cause easily gas to lead off, and the formality of welded and installed safety valve is complicated, and the spare part number is many, and operation is complicated when causing easily the energy storage device assembling, expends time in very much.
In view of this, the disappearance for above-mentioned prior art is satisfied in this creation, proposes a kind of pressure relief, effectively to overcome these above-mentioned problems.
Summary of the invention
The main purpose of this creation is providing a kind of pressure relief, this pressure relief is made of a plurality of pressure release patterns, be arranged on the coverboard, each this pressure release pattern can be divided into guide line, explosion line and alignment buffer, this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and these explosion lines to be connected to each other be a continuous explosion line.It can avoid causing internal high temperature gas because of the improperly electrically reaction of energy storage device inside, and institute produces burns or explosion phenomenon, can strengthen the safety in utilization of energy storage device.
Another purpose of this creation is providing a kind of pressure relief, and it can faster lead internal pressure off when the internal pressure value of going beyond the limit, with making as further protection energy storage device.
An again purpose of this creation is providing a kind of pressure relief, and its pressure release pattern and coverboard are integrally formed, simple in structure, and cost of manufacture is low, and production efficiency is high.
In addition, this creation provides a kind of energy storage device, and this energy storage device comprises a housing, is provided with a battery core in this housing, and this battery core comprises an electrode roll, the certainly extended conduction handle of this electrode roll both positive and negative polarity, and the inner terminal of two these conduction handles of connection both positive and negative polarity; At least one lid is arranged on the housing; An and pressure relief, be arranged on the lid, this pressure relief is made of a plurality of pressure release patterns, each this pressure release pattern can be divided into guide line, explosion line and alignment buffer, this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and these explosion lines to be connected to each other be a continuous explosion line.
A kind of pressure relief comprises: at least one coverboard; And a plurality of pressure release patterns, be arranged on this coverboard, each this pressure release pattern is divided into guide line, explosion line and alignment buffer, and this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and described explosion line to be connected to each other be a continuous explosion line.
This guide line is by extending with this alignment buffer junction difference.
This guide line is folding line or bent camber line.
This explosion line is by extending with this alignment buffer junction difference.
This explosion line is folding line or the bent camber line of circle.
Described pressure release pattern is with drawing, to form the described pressure release pattern of thinning.
A kind of energy storage device comprises: a housing, be provided with a battery core in this housing, and this battery core comprises an electrode roll, this electrode roll both positive and negative polarity extends a conduction handle, and two connect the inner terminal that both positive and negative polarity is somebody's turn to do the conduction handle; At least one lid is arranged on this housing; An and pressure relief, be arranged on this lid, this pressure relief comprises a plurality of pressure release patterns, each this pressure release pattern is divided into guide line, explosion line and alignment buffer, this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and described explosion line to be connected to each other be a continuous explosion line.
This housing is provided with at least one opening, and this lid seals this opening.
These housing two ends are provided with two these openings, and each this opening is provided with this lid, and this lid is provided with a perforation, and this inner terminal convexedly stretches in outside this lid by this perforation, and this inner terminal connects separately establishes a conducting terminal.
More be provided with a pad between each this conducting terminal and each this lid, with airtight this housing.
When pressing above a preset value in this housing, this pressure release pattern guides to this continuous explosion line by described guide line with pressure, this continuous explosion line is broken, to discharge this enclosure interior pressure.
This creation can be avoided the inner improper chemical reaction of energy storage device, the internal high pressure that causes causes the energy storage device explosion, when the internal pressure value of going beyond the limit, can lead fast internal pressure off, pre-anti-burning or explosion phenomenon, the safety in utilization of reinforcement energy storage device, and this creation is simple in structure, cost of manufacture is low, production efficiency is high, and assembling fast easily.
Hereby for making the auditor to the architectural feature of this creation and the effect reached further understanding and understanding be arranged more, sincerely help with preferred embodiment figure and cooperate detailed explanation, illustrate as after:
Description of drawings
Fig. 1 is existing energy storage device stereogram.
Fig. 2 is the stereogram of this creation.
Fig. 3 is the structural profile schematic diagram of this creation.
Fig. 4 is the pressure relief schematic diagram of this creation
Fig. 5 is the pressure release view of this creation.
Description of reference numerals
The 10-pressure relief; The 12-housing; The 14-battery core; The 16-lid; The 18-conducting terminal; The 20-pad; 22-pressure release pattern; The 50-end cap; The 52-housing; The 54-perforation; The 56-safety valve; The 122-opening; The 142-electrode roll; 144-conducts electricity handle; The 146-inner terminal; The 162-perforation; The 220-guide line; 222-explosion line; The 224-alignment buffer; The continuous explosion line of 226-.
Embodiment
Please refer to Fig. 2 and cooperate Fig. 3, as shown in the figure, the pressure relief 10 of this creation can be arranged on the energy storage device, energy storage device comprises a housing 12, be provided with a battery core 14 in the housing 12, battery core 14 comprises an electrode roll 142, and by the extended conduction handle 144 of electrode roll 142 both positive and negative polarities, and the inner terminal 146 of two connection both positive and negative polarity conduction handles 144, at least one lid 16, be arranged on the housing 12,16 are provided with a pressure relief 10 on the lid, and pressure relief 10 is made of a plurality of pressure release patterns 22, each pressure release pattern 22 can be divided into guide line 220, explosion line 226 and alignment buffer 224, wherein alignment buffer 224 is arranged at 226 on guide line 220 and explosion line, connecting guide line 220 and explosion line 224, and etc. explosion line 226 to be connected to each other be a continuous explosion line 226.
More advancing one says, the housing 12 of the energy storage device of this creation more is provided with at least one opening 122, present embodiment is provided with two openings 122 for example, each opening 122 is provided with a lid 16, and respectively be provided with a perforation 162 on the lid 16, outside convexedly stretching in for inner terminal 146, establish a conducting terminal 18 to connect, and 16 of conducting terminal 18 and lids more are provided with a pad 20, with the slit of 18 of the perforation 162 on the airtight lid 16 and conducting terminals.
Please refer to Fig. 4, it is the pressure relief schematic diagram.As shown in the figure, coverboard is provided with a plurality of pressure release patterns 22, and its drawing is on coverboard, so pressure release pattern 22 is positioned on the coverboard that has with punching press formation acquisition thinning effect; In addition, pressure relief 10 can be arranged on housing 12 arbitrary positions; In a preferred embodiment, coverboard is a lid 16, and pressure release pattern 22 should contain lid 16 1/3, more to strengthen the pressure release effect of pressure release pattern 22.Present embodiment utilizes three pressure release patterns 22 for example, and as shown in Figure 4, but this creation more can arrange two or three above pressure release patterns 22 on lid 16.Wherein, pressure release pattern 22 can be divided into guide line 220, explosion line 222 and alignment buffer 224, wherein connect an alignment buffer 224 between guide line 220 and the explosion line 222, and guide line 220 begins the difference extension by the junction with alignment buffer 224, and guide line 220 can be folding line or circular arc line, and explosion line 222 also begins the difference extension by the junction with alignment buffer 224, also can be folding line or circular arc line, and each explosion line 222 also is connected to each other, form a continuous explosion line 226, therefore when housing 12 interior pressures surpass a preset value, pressure release pattern 22 can guide to continuous explosion line 226 with pressure by each guide line 220, continuous explosion line 226 tearables are pulled open, to lead the pressure in the housing 12 off.In addition, the lid of this creation can be arbitrary shape, and no matter pressure relief 10 the position why, the magnitude range of its pressure release pattern 22 is approximately 1/3 of lid 16 sizes.
Fig. 5 is the pressure release view, as shown in the figure, when housing 12 interior pressures surpass a preset value, after pressure release pattern 22 can guide to continuous explosion line 226 with pressure by guide line 220, making continuous deflagration split line 226 breaks, housing 12 interior gases are disengaged outside housing 12 in the crack thus, can increase thus the fail safe that energy storage device uses.Wherein, in one embodiment, the energy storage device of this creation is battery, and in a preferred embodiment, energy storage device is secondary cell.In addition, pressure release pattern 22 can be depression or outstanding.
In sum, this creation can be avoided the inner improper chemical reaction of energy storage device, the internal high pressure that causes causes the energy storage device explosion, when the internal pressure value of going beyond the limit, can lead fast internal pressure off, pre-anti-burning or explosion phenomenon, strengthen the safety in utilization of energy storage device, and this creation is simple in structure, cost of manufacture is low, and production efficiency is high, and assembling fast easily.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it in spirit that claim limits and scope, but they will fall in the protection range of the present utility model all.
Claims (10)
1. a pressure relief is characterized in that, comprising:
At least one coverboard; And
A plurality of pressure release patterns, be arranged on this coverboard, each this pressure release pattern is divided into guide line, explosion line and alignment buffer, and this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and described explosion line to be connected to each other be a continuous explosion line.
2. pressure relief as claimed in claim 1 is characterized in that, this guide line is by extending with this alignment buffer junction difference.
3. pressure relief as claimed in claim 2 is characterized in that, this guide line is folding line or bent camber line.
4. pressure relief as claimed in claim 1 is characterized in that, this explosion line is by extending with this alignment buffer junction difference.
5. pressure relief as claimed in claim 4 is characterized in that, this explosion line is folding line or the bent camber line of circle.
6. an energy storage device is characterized in that, comprising:
One housing is provided with a battery core in this housing, this battery core comprises an electrode roll, and this electrode roll both positive and negative polarity extends a conduction handle, and two connect the inner terminal that both positive and negative polarity is somebody's turn to do the conduction handle;
At least one lid is arranged on this housing; And
One pressure relief, be arranged on this lid, this pressure relief comprises a plurality of pressure release patterns, each this pressure release pattern is divided into guide line, explosion line and alignment buffer, this alignment buffer is arranged between this guide line and explosion line, connecting this guide line and explosion line, and described explosion line to be connected to each other be a continuous explosion line.
7. energy storage device as claimed in claim 6 is characterized in that, this housing is provided with at least one opening, and this lid seals this opening.
8. energy storage device as claimed in claim 6 is characterized in that, these housing two ends are provided with two these openings, each this opening is provided with this lid, this lid is provided with a perforation, and this inner terminal convexedly stretches in outside this lid by this perforation, and this inner terminal connects separately establishes a conducting terminal.
9. energy storage device as claimed in claim 6 is characterized in that, more is provided with a pad between each this conducting terminal and each this lid, with airtight this housing.
10. energy storage device as claimed in claim 6 is characterized in that, when pressing above a preset value in this housing, this pressure release pattern guides to this continuous explosion line by described guide line with pressure, this continuous explosion line is broken, to discharge this enclosure interior pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202128523U CN202695588U (en) | 2012-05-11 | 2012-05-11 | Pressure relief structure and energy storage device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202128523U CN202695588U (en) | 2012-05-11 | 2012-05-11 | Pressure relief structure and energy storage device using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695588U true CN202695588U (en) | 2013-01-23 |
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ID=47551157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202128523U Expired - Lifetime CN202695588U (en) | 2012-05-11 | 2012-05-11 | Pressure relief structure and energy storage device using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022170487A1 (en) * | 2021-02-09 | 2022-08-18 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical device, and method for manufacturing battery cell |
-
2012
- 2012-05-11 CN CN2012202128523U patent/CN202695588U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022170487A1 (en) * | 2021-02-09 | 2022-08-18 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical device, and method for manufacturing battery cell |
| CN116250128A (en) * | 2021-02-09 | 2023-06-09 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electricity utilization device and method for preparing battery cell |
| EP4075584A4 (en) * | 2021-02-09 | 2023-11-01 | Contemporary Amperex Technology Co., Limited | Battery cell, battery, electrical device, and method for manufacturing battery cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170922 Address after: Hsinchu City, Taiwan, China Patentee after: Shengyang battery Limited by Share Ltd Address before: Hsinchu City, Taiwan, China Patentee before: Phoenix Silicon International Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |