CN206194885U - From lithium cell of taking protect function - Google Patents
From lithium cell of taking protect function Download PDFInfo
- Publication number
- CN206194885U CN206194885U CN201621277817.4U CN201621277817U CN206194885U CN 206194885 U CN206194885 U CN 206194885U CN 201621277817 U CN201621277817 U CN 201621277817U CN 206194885 U CN206194885 U CN 206194885U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- lithium cell
- defencive function
- protection shell
- filler
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a from lithium cell of taking protect function, include the lithium cell, fire -retardant microcapsule, filler and the protecting sheathing that constitute by positive pole utmost point ear and negative pole utmost point ear, the lithium cell be wavy shell structure, anodal utmost point ear and negative pole extremely the ear locate same one side of lithium cell to stretch out protecting sheathing, anodal utmost point ear and negative pole utmost point ear on all be equipped with annular electric current fuse of circle and round annular voltage fuse, electric current fuse and voltage fuse all locate between lithium cell and the protecting sheathing, fire -retardant microcapsule and filler locate between lithium cell and the protecting sheathing. The utility model provides a from lithium cell of taking protect function has tangible results to the safe index that improves the lithium cell.
Description
Technical field
The utility model is related to a kind of lithium battery device, especially a kind of to carry defencive function with self-shield effect
Lithium battery.
Background technology
The class shape of types of burst analysis battery blast can be summarized as external short circuit, internal short-circuit and overcharge three kinds.Herein
Outside mean the outside of battery core, contain the short circuit caused by the bad grade of internal battery pack insulating Design.When battery core outside is sent out
Raw short circuit, when electronic building brick fails cut-off loop again, battery core inside can produce hyperpyrexia, cause partial electrolyte liquid to vaporize, by battery
Shell support is big.When the pore closing rate of barrier film is too poor, or pore is never closed, and battery temperature can be allowed to continue to raise, more
Many electrolyte vaporizations, finally burst battery case, or even battery temperature is brought up to make material combustion and explode.It is internal
Short circuit is primarily due to Copper Foil and wears out barrier film with the burr of aluminium foil, or the ingotism of lithium atom is worn out caused by diaphragm.
In summary the type exploded, many lithium battery manufacturers by it is explosion-proof focus on overcharge prevent, it is outside short
Road prevents and lifts the aspect of battery core security three.Therefore, to the protection of lithium ion battery, at least to include：In charging voltage
Limit, discharge voltage lower limit and upper current limit three.In general lithium battery group, in addition to lithium cell core, can all there is a piece of protection
Plate, this piece protection board is mainly just to provide this three protections.Although, although lithium battery has safety control measures in itself, because
For some reasons cause to control failure, lack safety valve or gas has little time to be discharged by safety valve, inner pressure of battery will be anxious
Play rises and sets off an explosion.Global lithium battery explosive incident still keeps pouring in, therefore the safety problem of lithium battery is still present safety
Hidden danger, it is desirable to have more safeguard measures shift to an earlier date its safety index.
The content of the invention
The utility model provides a kind of lithium battery for carrying defencive function, and the safety index for improving lithium battery has bright
Effective fruit.
A kind of lithium battery for carrying defencive function, including the lithium battery, fire-retardant micro- being made up of positive pole ear and negative lug
Capsule, filler and protection shell, described lithium battery is corrugated tank structure；Described positive pole ear and negative lug is located at
The same side of lithium battery, and stretch out protection shell；The electric current of annular shape is equipped with described positive pole ear and negative lug
The voltage fuse of fuse and annular shape, described current insurance silk and voltage fuse are located at lithium battery and protection shell
Between, when lithium battery occurs abnormal, fuse will be when curtage be increased to certain height and temperature extremely
Wait, fuse itself fusing cut-out electric current, so as to play a part of to protect lithium battery；Described flame retardant microcapsule and filler sets
Between lithium battery and protection shell, when lithium battery breaks down explosion time, flame retardant microcapsule is due to the high temperature in protection shell
Cause microcapsules rupture, discharge fire retardant matter and reach fire-retardant purpose.
Further, described li battery shell can also be U-shape structure.
Further, the voltage of described voltage fuse is 4.35-4.65V.
Further, described flame retardant microcapsule can be filled with the volume of the capsule shape of carbon dioxide.
Further, described filler can be polytetrafluoroethylene (PTFE) macromolecule or polyhexafluoropropylene macromolecular material.
Further, described protection shell can be nylon or aromatic polyamide fiber or superhigh molecular weight polyethylene
Alkene fiber material.
The utility model offer is a kind of to carry the lithium battery of defencive function, including be made up of positive pole ear and negative lug
Lithium battery, flame retardant microcapsule, filler and protection shell, the shell of lithium battery is wavy texture, can increase dissipating for lithium battery
Hot area；Current insurance silk and voltage fuse are equipped with the positive and negative electrode lug of lithium battery, are caused when lithium battery breaks down
When battery current or voltage are raised, current insurance silk or voltage fuse will fuse, so as to reach the purpose of protection lithium battery；
When lithium battery occurs explosion time, flame retardant microcapsule discharges fire retardant matter and can play fire-retardant effect；Filler is polytetrafluoro
Vinyl polymer or polyhexafluoropropylene macromolecular material, are conducive to battery to radiate；The protection shell of lithium battery is to use special material
Composition, for explosion-proof with good effect.The lithium battery for carrying defencive function of the present utility model is for improving lithium battery
Safety index has positive effect.
Brief description of the drawings
The lithium battery for carrying defencive function a kind of to the utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the lithium battery for carrying defencive function；
In figure：1st, shell is protected；2nd, lithium battery；3rd, positive pole ear；4th, negative lug；5th, current insurance silk；6th, voltage is protected
Dangerous silk；7th, flame retardant microcapsule；8th, heat sink material；9th, filler.
Specific embodiment
Embodiment 1
A kind of lithium battery for carrying defencive function, including the lithium battery being made up of positive pole ear (3) and negative lug (4)
（2）, flame retardant microcapsule（7）, filler（9）With protection shell（1）, lithium battery（2）Shell is wavy texture；Positive pole ear（3）
And negative lug（4）Located at lithium battery（2）The same side, and stretch out protection shell（1）；Positive pole ear（3）And negative lug
（4）On be equipped with current insurance silk（5）And voltage fuse（6）, current insurance silk（5）And voltage fuse（6）It is annulus
Shape, work as lithium battery（2）When generation is abnormal, fuse will extremely be increased to certain height and temperature in curtage
When, fuse itself fusing cut-out electric current, so as to play a part of to protect lithium battery, fuse to be respectively arranged on lithium battery（2）
With protection shell（1）Between positive pole ear（3）And negative lug（4）On, voltage fuse（6）Voltage be 4.35-
4.65V；Flame retardant microcapsule（7）And filler（9）Positioned at lithium battery（2）With protection shell（1）Between；Flame retardant microcapsule（7）It is
The volume of the capsule shape full of carbon dioxide, works as lithium battery（2）Break down explosion time, flame retardant microcapsule（7）Due to protection
Shell（1）Interior high temperature causes microcapsules rupture, discharges fire retardant matter, reaches fire-retardant purpose；Filler（9）It is have to dissipate
The polytetrafluoroethylene (PTFE) macromolecular material of heat effect, is conducive to heat dissipation of lithium battery；Protection shell（1）Can be nylon or fragrant adoption
Amid fibers or ultra-high molecular weight polyethylene fiber material, can play explosion-proof effect.
Embodiment 2
A kind of lithium battery for carrying defencive function, including lithium battery（2）, flame retardant microcapsule（7）, filler（9）And protection
Shell（1）, lithium battery（2）Shell is U-shape structure；Lithium battery（2）Including positive pole ear（3）And negative lug（4）, positive pole ear
（3）And negative lug（4）Located at lithium battery（2）The same side, and stretch out protection shell（1）；Positive pole ear（3）With negative pole pole
Ear（4）On be equipped with current insurance silk（5）And voltage fuse（6）, current insurance silk（5）And voltage fuse（6）It is round
Ring-type, fuse is respectively arranged on lithium battery（2）With protection shell（1）Between positive pole ear（3）And negative lug（4）On,
Voltage fuse（6）Voltage be 4.35-4.65V；Flame retardant microcapsule（7）And filler（9）Positioned at lithium battery（2）And protection
Shell（1）Between；Flame retardant microcapsule（7）The volume of the capsule shape of carbon dioxide is filled with, works as lithium battery（2）Break down quick-fried
When fried, flame retardant microcapsule（7）Due to protection shell（1）Interior high temperature causes microcapsules rupture, discharges carbon dioxide and reaches resistance
The purpose of combustion；Described filler（9）Polyhexafluoropropylene macromolecular material with thermolysis, is conducive to heat dissipation of lithium battery；
Protection shell（1）Can be nylon or aromatic polyamide fiber or ultra-high molecular weight polyethylene fiber material.
Claims (6)
1. a kind of lithium battery for carrying defencive function, including lithium battery, the fire-retardant micro- glue being made up of positive pole ear and negative lug
Capsule, filler and protection shell, it is characterised in that：Described lithium battery is corrugated tank structure；Described positive pole ear and negative
Pole lug stretches out protection shell located at the same side of lithium battery；Circle is equipped with described positive pole ear and negative lug
The current insurance silk of ring-type and circular voltage fuse, described current insurance silk and voltage fuse are located at lithium battery
And protection shell between；Described flame retardant microcapsule and filler are between lithium battery and protection shell.
2. a kind of lithium battery for carrying defencive function according to claim 1, it is characterised in that：Outside described lithium battery
Shell can also be U-shape structure.
3. a kind of lithium battery for carrying defencive function according to claim 1, it is characterised in that：Described voltage insurance
The voltage of silk is 4.35-4.65V.
4. a kind of lithium battery for carrying defencive function according to claim 1, it is characterised in that：Described fire-retardant micro- glue
Capsule can be filled with the volume of the capsule shape of carbon dioxide.
5. a kind of lithium battery for carrying defencive function according to claim 1, it is characterised in that：Described filler can
Being polytetrafluoroethylene (PTFE) macromolecule or polyhexafluoropropylene macromolecular material.
6. a kind of lithium battery for carrying defencive function according to claim 1, it is characterised in that：Described protection shell
Can be nylon or aromatic polyamide fiber or ultra-high molecular weight polyethylene fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277817.4U CN206194885U (en) | 2016-11-26 | 2016-11-26 | From lithium cell of taking protect function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277817.4U CN206194885U (en) | 2016-11-26 | 2016-11-26 | From lithium cell of taking protect function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206194885U true CN206194885U (en) | 2017-05-24 |
Family
ID=58725164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277817.4U Expired - Fee Related CN206194885U (en) | 2016-11-26 | 2016-11-26 | From lithium cell of taking protect function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206194885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11695151B2 (en) | 2018-05-08 | 2023-07-04 | Lg Energy Solution, Ltd. | Case for lithium metal secondary battery, lithium metal secondary battery comprising same, method for manufacturing same |
-
2016
- 2016-11-26 CN CN201621277817.4U patent/CN206194885U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11695151B2 (en) | 2018-05-08 | 2023-07-04 | Lg Energy Solution, Ltd. | Case for lithium metal secondary battery, lithium metal secondary battery comprising same, method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20191126 |