CN207896185U - A kind of cathode of lithium battery ear safety protection structure - Google Patents
A kind of cathode of lithium battery ear safety protection structure Download PDFInfo
- Publication number
- CN207896185U CN207896185U CN201820352091.9U CN201820352091U CN207896185U CN 207896185 U CN207896185 U CN 207896185U CN 201820352091 U CN201820352091 U CN 201820352091U CN 207896185 U CN207896185 U CN 207896185U
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- Prior art keywords
- negative electrode
- layer
- electrode lug
- ear
- anode
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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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Abstract
The utility model discloses a kind of cathode of lithium battery ear safety protection structure, structure includes：Negative electrode lug protective case, negative electrode lug, negative electrode lug insulating trip, anode ear, anode ear insulating trip, battery, aluminum packaging film, negative electrode layer, diaphragm, anode layer; battery upper end is equipped with negative electrode lug and anode ear; battery outer layer is equipped with aluminum packaging film, negative electrode layer, diaphragm and anode layer; negative electrode lug outer layer is equipped with negative electrode lug protective case and negative electrode lug insulating trip, and anode ear outer layer is equipped with anode ear insulating trip；A kind of cathode of lithium battery ear safety protection structure of the utility model; negative electrode lug protection structure is installed on inside battery cover board; in negative electrode lug protection structure equipped in negative electrode active material layer containing metallic nickel ions can improve electronics cathode mobile efficiency; the connection of other equipment and lithium battery is not influenced, it is easy to use.
Description
Technical field
The utility model is a kind of cathode of lithium battery ear safety protection structure, belongs to technical field of lithium batteries.
Background technology
Currently, the primary structure of lithium battery is usually made of shell, battery roll core and battery cover board, battery roll core and battery
Negative lug is connected between cover board.In the prior art, negative lug is a connecting piece, width everywhere and cross-sectional area
Equalization, and the blowout current of negative lug is excessive（Generally exceed 5A）, when there is high current（Generally exceed 5A）When, cathode pole
Ear can not melt disconnection, be steeply risen so as to cause battery temperature, and severe patient even Decrepitation Phenomena occurs, and there is larger peaces
Full hidden danger.
Prior art discloses application No. is：201520217496.8 a kind of cathode of lithium battery ear safety protection structure,
Include battery roll core, battery cover board and cathode nickel lug, which is connected between battery roll core and battery cover board,
The cathode nickel lug includes first connecting portion, fuse part and second connecting portion, which connect with battery roll core,
The cross-sectional area of the fuse part is respectively less than the cross-sectional area of first connecting portion and the cross-sectional area of second connecting portion, second connection
Portion is connect with battery cover board.It is connected between first connecting portion and second connecting portion by using fuse part, and coordinates fuse part
Cross-sectional area is respectively less than the cross-sectional area of first connecting portion and the cross-sectional area of second connecting portion so that the blowout current of fuse part
Less than 5A, there is high current（Generally exceed 5A）When, fuse part melting disconnects, and plays the role of similar fuse, to ensure
Battery Wen Sheng no longer rises, and ensures phenomena such as battery is not in high temperature, explosion, product safety performance greatly promotes.But it is existing
There is protection structures to be installed on battery cover board upper end, protection structure resistance for the cathode of lithium battery ear safety protection structure of technology tradition
Hinder being electrically connected for lithium battery and other equipment, influences electronics the movement speed of cathode the problem of.
Utility model content
In view of the deficienciess of the prior art, the utility model aim is to provide a kind of cathode of lithium battery ear safeguard protection knot
Structure, to solve the traditional cathode of lithium battery ear safety protection structure of the prior art, there is protection structures to be installed on battery cover board
End, protection structure hinder being electrically connected for lithium battery and other equipment, influence electronics the movement speed of cathode the problem of.
To achieve the goals above, the utility model is to realize by the following technical solutions：A kind of cathode of lithium battery
Ear safety protection structure, structure include：Negative electrode lug protective case, negative electrode lug, negative electrode lug insulating trip, anode ear, anode ear insulation
Piece, battery, aluminum packaging film, negative electrode layer, diaphragm, anode layer, the battery upper end is equipped with negative electrode lug and anode ear, described
Battery outer layer be equipped with aluminum packaging film, negative electrode layer, diaphragm and anode layer, the negative electrode lug outer layer be equipped with negative electrode lug protective case with
Negative electrode lug insulating trip, the anode ear outer layer are equipped with anode ear insulating trip, the negative electrode lug and lamellar spacing in negative electrode lug protective case
Cooperation, the negative electrode lug protective case outer layer and negative electrode lug insulating trip clearance fit, the anode ear and anode ear insulating trip gap
Cooperation, the battery are fixedly connected with negative electrode lug and anode ear, the anode ear and anode layer clearance fit, the negative electrode lug
With negative electrode layer clearance fit, anode layer is equipped with diaphragm between the negative electrode layer.The diaphragm and aluminum packaging film clearance fit；Institute
Negative electrode lug protective case is stated to be made of protective case diaphragm, high-temp glue, fuse layer, tin point, negative electrode active material layer, guard ring, it is described
Protective case diaphragm, high-temp glue, fuse layer, tin point, negative electrode active material and guard ring are in the same center line, the high-temp glue
Inside and outside two layers respectively with protective case diaphragm and fuse layer clearance fit, the negative electrode active material layer is equipped with tin point, described negative
Pole active material layer upper and lower ends are equipped with guard ring, the negative electrode active material layer outer layer and fuse layer clearance fit, described negative
Pole active material layer is fixedly connected by guard ring with negative electrode lug.
Further, the negative electrode lug protective case, negative electrode lug and negative electrode lug insulating trip are in the same center line.
Further, the anode ear is in the same center line with anode ear insulating trip.
Further, the aluminum packaging film, negative electrode layer, diaphragm and anode layer are mutually parallel two-by-two.
Further, the negative electrode lug and anode ear are cylindrical structure.
Further, the high-temp glue is different resistance to a kind of satisfaction made of the ingredients such as alumino-silicate, inorganic ceramic powder
The high temperature glue of warm demand, heatproof ensure the stable connection of negative electrode lug and negative electrode lug protective case from degree to degree.
Further, when the negative electrode lug protective case current temperature is excessively high, fuse layer melting disconnects, and plays similar fuse
Effect, to ensure that battery Wen Sheng no longer rises, ensure battery be not in high temperature, explosion phenomena such as, product safety performance
It greatly promotes.
Advantageous effect
A kind of cathode of lithium battery ear safety protection structure of the utility model, negative electrode lug protection structure are installed in battery cover board
Portion, interior be equipped in negative electrode active material layer of negative electrode lug protection structure can improve movement of the electronics in cathode containing metallic nickel ions
Efficiency does not influence the connection of other equipment and lithium battery, easy to use.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is a kind of half-section diagram of cathode of lithium battery ear safety protection structure installation of the utility model；
Fig. 2 is a kind of structural schematic diagram of cathode of lithium battery ear safety protection structure safety protective cover of the utility model.
In figure：Negative electrode lug protective case -1, negative electrode lug -2, negative electrode lug insulating trip -3, anode ear -4, anode ear insulating trip -5,
Battery -6, negative electrode layer -8, diaphragm -9, anode layer -10, protective case diaphragm -101, high-temp glue -102, melts aluminum packaging film -7
Tomography -103, tin point -104, negative electrode active material layer -105, guard ring -106.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
It please refers to Fig.1 and Fig. 2, the utility model provides a kind of cathode of lithium battery ear safety protection structure technical solution：Its
Structure includes：Negative electrode lug protective case 1, negative electrode lug 2, negative electrode lug insulating trip 3, anode ear 4, anode ear insulating trip 5, battery 6, aluminium
Packaging film 7 processed, negative electrode layer 8, diaphragm 9, anode layer 10,6 upper end of the battery are equipped with negative electrode lug 2 and anode ear 4, the battery
6 outer layer of core is equipped with aluminum packaging film 7, negative electrode layer 8, diaphragm 9 and anode layer 10, and 2 outer layer of the negative electrode lug is protected equipped with negative electrode lug
Set 1 and negative electrode lug insulating trip 3,4 outer layer of the anode ear are equipped with anode ear insulating trip 5, the negative electrode lug 2 and negative electrode lug protective case
1 internal layer clearance fit, 1 outer layer of negative electrode lug protective case and 3 clearance fit of negative electrode lug insulating trip, the anode ear 4 and anode
5 clearance fit of ear insulating trip, the battery 6 are fixedly connected with negative electrode lug 2 and anode ear 4, the anode ear 4 and anode layer 10
Clearance fit, the negative electrode lug 2 and 8 clearance fit of negative electrode layer, anode layer 10 is equipped with diaphragm 9 between the negative electrode layer 8.It is described every
Film 9 and 7 clearance fit of aluminum packaging film；The negative electrode lug protective case 1 is by protective case diaphragm 101, high-temp glue 102, fuse layer
103, tin point 104, negative electrode active material layer 105, guard ring 106 form, the protective case diaphragm 101, high-temp glue 102, fusing
Layer 103, tin point 104, negative electrode active material 105 are in the same center line with guard ring 106, two inside and outside the high-temp glue 102
Layer respectively with 103 clearance fit of protective case diaphragm 101 and fuse layer, the negative electrode active material layer 105 be equipped with tin point 104,
105 upper and lower ends of the negative electrode active material layer are equipped with guard ring 106,105 outer layer of the negative electrode active material layer and fuse layer
103 clearance fits, the negative electrode active material layer 105 are fixedly connected by guard ring 106 with negative electrode lug 2, and the negative electrode lug is protected
Sheath 1, negative electrode lug 2 and negative electrode lug insulating trip 3 are in the same center line, and the anode ear 4 is in same with anode ear insulating trip 5
On one center line, the aluminum packaging film 7, negative electrode layer 8, diaphragm 9 and anode layer 10 are mutually parallel two-by-two, the negative electrode lug 2 with
Anode ear 4 is cylindrical structure, and the high-temp glue 102 is with a kind of full made of the ingredients such as alumino-silicate, inorganic ceramic powder
The high temperature glue of foot difference heatproof demands, heatproof is from 200 degree to 1800 degree, the connection of guarantee negative electrode lug 2 and negative electrode lug protective case 1
Firm, when 1 current temperature of negative electrode lug protective case is excessively high, the melting of fuse layer 103 disconnects, and plays the role of similar fuse,
To ensure that battery Wen Sheng no longer rises, ensure phenomena such as battery is not in high temperature, explosion, product safety performance carries significantly
It rises.
High-temp glue 102 described in this patent be it is a kind of using inorganic nano material through high temperature resistant inorganic made of polycondensation reaction
Nanocomposite binders, by the screening to composition proportion and preparation technology parameter, it is neutral that obtain binder, which be pH value,
Suspension/dispersion, not only cohesive force is strong and non-corrosive to metallic matrix, but also can keep good bonding under high temperature again
Performance and corrosion resistance, service life are long.High-temp glue is easy to use, can be used for the direct bonding of heat-resisting material.
It is carrying out in use, it for positive electrode, lithium metal is 8 material of negative electrode layer, battery that anode layer 10, which uses manganese dioxide,
It is nonaqueous electrolyte solution in core 6, when electronics is when battery 6 moves, the chemical energy of generation can be converted to electric energy, pass through cathode
Ear 2 and anode ear 4 are connected with other equipment, are reached for the purpose that electrical equipment provides electric energy, and negative electrode lug protective case 1 is installed
Inside battery cover board, the connection of other equipment and lithium battery is not influenced.
The utility model solves the traditional cathode of lithium battery ear safety protection structure of the prior art, and there is protection structure peaces
Loaded on battery cover board upper end, protection structure hinders being electrically connected for lithium battery and other equipment, influence electronics cathode mobile speed
The problem of spending, the utility model are combined with each other by above-mentioned component, and negative electrode lug protection structure is installed on inside battery cover board, is born
In lug protection structure equipped in negative electrode active material layer containing metallic nickel ions can improve electronics cathode mobile efficiency,
The connection of other equipment and lithium battery is not influenced, it is easy to use, it is described in detail below：
The negative electrode lug protective case 1 is by protective case diaphragm 101, high-temp glue 102, fuse layer 103, tin point 104, negative electrode active
Material layer 105, guard ring 106 form, and the protective case diaphragm 101, high-temp glue 102, fuse layer 103, tin point 104, cathode are lived
Property substance 105 is in the same center line with guard ring 106, inside and outside the high-temp glue 102 two layers respectively with protective case diaphragm 101
With 103 clearance fit of fuse layer, the negative electrode active material layer 105 is equipped with tin point 104, the negative electrode active material layer 105
Upper and lower ends are equipped with guard ring 106,105 outer layer of the negative electrode active material layer and 103 clearance fit of fuse layer, and the cathode is lived
Property material layer 105 is fixedly connected by guard ring 106 with negative electrode lug 2.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims
All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (5)
1. a kind of cathode of lithium battery ear safety protection structure, structure include：Negative electrode lug protective case（1）, negative electrode lug（2）, cathode
Ear insulating trip（3）, anode ear（4）, anode ear insulating trip（5）, battery（6）, aluminum packaging film（7）, negative electrode layer（8）, diaphragm
（9）, anode layer（10）, the battery（6）Upper end is equipped with negative electrode lug（2）With anode ear（4）, the battery（6）Outer layer is set
There is aluminum packaging film（7）, negative electrode layer（8）, diaphragm（9）With anode layer（10）, the negative electrode lug（2）Outer layer is protected equipped with negative electrode lug
Set（1）With negative electrode lug insulating trip（3）, the anode ear（4）Outer layer is equipped with anode ear insulating trip（5）, it is characterised in that：
The negative electrode lug（2）With negative electrode lug protective case（1）Internal layer clearance fit, the negative electrode lug protective case（1）Outer layer and cathode
Ear insulating trip（3）Clearance fit, the anode ear（4）With anode ear insulating trip（5）Clearance fit, the battery（6）With it is negative
Lug（2）And anode ear（4）It is fixedly connected, the anode ear（4）With anode layer（10）Clearance fit, the negative electrode lug（2）With
Negative electrode layer（8）Clearance fit, the negative electrode layer（8）Between anode layer（10）Equipped with diaphragm（9）, the diaphragm（9）With aluminum packet
Fill film（7）Clearance fit；
The negative electrode lug protective case（1）By protective case diaphragm（101）, high-temp glue（102）, fuse layer（103）, tin point（104）, it is negative
Pole active material layer（105）, guard ring（106）Composition, the protective case diaphragm（101）, high-temp glue（102）, fuse layer
（103）, tin point（104）, negative electrode active material layer（105）With guard ring（106）It is in the same center line, the high-temp glue
（102）Inside and outside two layers respectively with protective case diaphragm（101）And fuse layer（103）Clearance fit, the negative electrode active material layer
（105）It is equipped with tin point（104）, the negative electrode active material layer（105）Upper and lower ends are equipped with guard ring（106）, the cathode
Active material layer（105）Outer layer and fuse layer（103）Clearance fit, the negative electrode active material layer（105）Pass through guard ring
（106）With negative electrode lug（2）It is fixedly connected.
2. a kind of cathode of lithium battery ear safety protection structure according to claim 1, it is characterised in that：The negative electrode lug is protected
Sheath（1）, negative electrode lug（2）With negative electrode lug insulating trip（3）It is in the same center line.
3. a kind of cathode of lithium battery ear safety protection structure according to claim 1, it is characterised in that：The anode ear
（4）With anode ear insulating trip（5）It is in the same center line.
4. a kind of cathode of lithium battery ear safety protection structure according to claim 1, it is characterised in that：The aluminum packaging
Film（7）, negative electrode layer（8）, diaphragm（9）With anode layer（10）It is mutually parallel two-by-two.
5. a kind of cathode of lithium battery ear safety protection structure according to claim 1, it is characterised in that：The negative electrode lug
（2）With anode ear（4）It is cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820352091.9U CN207896185U (en) | 2018-03-15 | 2018-03-15 | A kind of cathode of lithium battery ear safety protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820352091.9U CN207896185U (en) | 2018-03-15 | 2018-03-15 | A kind of cathode of lithium battery ear safety protection structure |
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| Publication Number | Publication Date |
|---|---|
| CN207896185U true CN207896185U (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820352091.9U Expired - Fee Related CN207896185U (en) | 2018-03-15 | 2018-03-15 | A kind of cathode of lithium battery ear safety protection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207896185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301152A (en) * | 2018-09-30 | 2019-02-01 | 芜湖天弋能源科技有限公司 | A kind of lithium ion battery and its manufacturing process |
| CN113036228A (en) * | 2021-03-12 | 2021-06-25 | 傲普(上海)新能源有限公司 | Lithium ion battery manufacturing method and lithium ion battery |
-
2018
- 2018-03-15 CN CN201820352091.9U patent/CN207896185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301152A (en) * | 2018-09-30 | 2019-02-01 | 芜湖天弋能源科技有限公司 | A kind of lithium ion battery and its manufacturing process |
| CN113036228A (en) * | 2021-03-12 | 2021-06-25 | 傲普(上海)新能源有限公司 | Lithium ion battery manufacturing method and lithium ion battery |
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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: 20180921 Termination date: 20200315 |