CN206931675U - Cylindrical lithium battery cell and cylindrical lithium battery - Google Patents
Cylindrical lithium battery cell and cylindrical lithium battery Download PDFInfo
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- CN206931675U CN206931675U CN201720799652.5U CN201720799652U CN206931675U CN 206931675 U CN206931675 U CN 206931675U CN 201720799652 U CN201720799652 U CN 201720799652U CN 206931675 U CN206931675 U CN 206931675U
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- Prior art keywords
- lithium battery
- cylindrical lithium
- cylinder
- battery cell
- core
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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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- 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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Abstract
The utility model is applied to technical field of lithium batteries, there is provided a kind of cylindrical lithium battery cell and cylindrical lithium battery.Cylindrical lithium battery cell includes core and a newel in the centre bore, the core includes cathode sheet, anode pole piece and the barrier film wound after stacking, the barrier film is between the cathode sheet and the anode pole piece, there is centre bore, the newel includes the first cylinder being adapted with the centre bore in the core.Cylindrical lithium battery includes battery core Package casing, the electrolyte being filled with the battery core Package casing and described cylindrical lithium battery cell.Cylindrical lithium battery cell and cylindrical lithium battery provided by the utility model are compared with prior art, by setting newel in centre bore, the space plied in the centre in hole, the total amount that air is mixed into when manufacturing cylindrical lithium battery is reduced, so as to reduce the risk of infringement battery life.
Description
Technical field
The utility model belongs to technical field of lithium batteries, is to be related to a kind of cylindrical lithium battery cell and circle more specifically
Post lithium battery.
Background technology
Cylindrical lithium battery in manufacturing process, core by cathode sheet, barrier film and anode pole piece be laminated after wind and
Into manufactured core inside can form centre bore.Refer to Fig. 1, in the centre bore of core and more than core, battery cover board with
Under region be that the intraoral chamber of neck has air and is mixed into, during battery use, the oxygen in this partial air is possible to can be with
The lithium metal of GND insertion reacts, and oxygen is also possible to react with some compositions in electrolyte, these reactions
Battery can be reduced.Battery is once made, and its internal gas can not be typically evacuated or be put in use
Gas disposal.
Therefore, it is to be highly desirable to design a kind of novel lithium battery that the air in lithium battery can be effectively reduced in assembling
's.
Utility model content
The purpose of this utility model is to provide a kind of cylindrical lithium battery cell and cylindrical lithium battery, it is intended to solves existing skill
Art improves the technical problem of infringement battery risk during cylindrical lithium battery is made because of air is mixed into excessively.
To achieve the above object, the technical solution adopted in the utility model is：A kind of cylindrical lithium battery cell is provided, including
Core and a newel in the centre bore, cathode sheet that the core includes winding after stacking, anode pole piece and
Barrier film, the barrier film has centre bore between the cathode sheet and the anode pole piece in the core, described
Newel includes the first cylinder being adapted with the centre bore.
Further, first cylinder is hollow-core construction.
Further, first cylinder, which is provided with, is used to connect the passage inside and outside first cylinder.
Further, the newel also includes second cylinder for being used to occupy the intraoral cavity space of neck, second circle
Post is connected with one end of first cylinder.
Further, second cylinder is hollow-core construction.
Further, first cylinder is hollow-core construction, the hollow parts of first cylinder and second cylinder
Hollow parts be connected.
Further, the newel, which is provided with, is used to connect the passage inside and outside second cylinder.
Further, the passage is provided with the one-way ventilating prevented in the newel described in gas flow outside newel
Structure.
Further, the one-way ventilating structure is Pneumatic check valve.
Another object of the present utility model is to provide a kind of cylindrical lithium battery, including battery core Package casing, is filled with the electricity
Electrolyte and described cylindrical lithium battery cell in core Package casing.
Cylindrical lithium battery cell and cylindrical lithium battery provided by the utility model compared with prior art, by centre bore
Interior setting newel, the space plied in the centre in hole, the total amount that air is mixed into when manufacturing cylindrical lithium battery is reduced, so as to reduce
Damage the risk of battery life.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the cylindrical lithium battery of prior art；
Fig. 2 is a kind of structural representation for the cylindrical lithium battery that the utility model embodiment provides；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is another structural representation for the cylindrical lithium battery that the utility model embodiment provides；
Fig. 5 is the enlarged drawing at B in Fig. 4；
Wherein, each reference in figure：
1st, battery cover board；2nd, the intraoral chamber of neck；3rd, core；31st, centre bore；4th, newel；41st, the first cylinder；42nd, the second circle
Post；43rd, passage；44th, Pneumatic check valve.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
It should be noted that term " length ", " width ", " height ", " thickness ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " head ", " tail " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.
It should also be noted that, unless otherwise clearly defined and limited, " installation ", " connected ", " connection ", " fixation ",
Terms such as " settings " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be with
It is mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of individual element internal or the interaction relationship of two elements.For the ordinary skill in the art, Ke Yigen
Understand concrete meaning of the above-mentioned term in the utility model according to concrete condition.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple ", " some " are meant that two
Or two or more, unless otherwise specifically defined.
Cylindrical lithium battery cell embodiment one：
Fig. 2 is referred to, now the embodiment one of cylindrical lithium battery cell provided by the utility model is illustrated.Cylinder lithium
Battery battery core, including core 3 and newel 4, core 3 include cathode sheet, anode pole piece and the barrier film wound after stacking, every
From film between cathode sheet and anode pole piece, there is centre bore 31 in core 3, newel 4 includes fitting with the phase of centre bore 31
The first cylinder 41 matched somebody with somebody, the first cylinder 41 are located in centre bore 31, and the first cylinder 41 can be hollow, solid or semi-hollow half
Solid construction.
The utility model embodiment provide cylindrical lithium battery cell compared with prior art, by being set in centre bore
Newel, the space plied in the centre in hole, the total amount that air is mixed into when manufacturing cylindrical lithium battery is reduced, so as to reduce infringement electricity
The risk in pond life-span.
Further, Fig. 2 and Fig. 3 are referred to, the first cylinder 41 is hollow-core construction, to mitigate cylindrical lithium battery cell and circle
The gross weight of post lithium battery.
Further, Fig. 2 and Fig. 3 are referred to, the first cylinder 41, which is provided with, to be used to connect the interior of the hollow-core construction of the first cylinder 41
Outer passage 43.Lithium battery can produce gas in formation process, during using process especially applied at elevated temperature, due to just
The generation that various secondary hairs are answered in negative pole, electrolyte, can also produce gas.These gas builds can cause in battery to a certain extent
Portion's air pressure becomes big, deforms cell expansion, influences battery use and life-span.Therefore the first cylinder 41 is being arranged to hollow knot
Structure, passage 43 is set, when internal aerogenesis runs up to certain pressure to cylindrical lithium battery in use, i.e., internal aerogenesis gas
When pressure is more than the air pressure of the hollow-core construction inside the first cylinder 41, aerogenesis will be entered by passage 43 inside cylindrical lithium battery
In hollow-core construction inside first cylinder 41, to reduce the pressure inside cylindrical lithium battery, it will not thus make cylindrical lithium battery
Dilatancy, it would not also influence its use and life-span.
Further, Fig. 2 and Fig. 3 are referred to, passage 43, which is provided with, to be prevented in newel 4 outside gas flow newel 4
One-way ventilating structure, i.e. passage 43 can prevent the gas in the boring structure of the first cylinder 41 provided with an one-way ventilating structure
Inside direction of flow cylindrical lithium battery.This one-way ventilating structure can be set at passage 43 it is conventional can only one-way ventilating
The Pneumatic check valve that mechanical structure is either set directly at passage 43.
Further, Fig. 2 and Fig. 3 are referred to, in order to easily manufactured, the one-way ventilating structure is Pneumatic check valve 44.
Further, the boring structure of the first cylinder 41 carries out vacuumize process in advance, i.e. the inside of the first cylinder 41 is empty
Core structure is vacuum state in a pre-installation, and Pneumatic check valve 44 has certain Opening pressure, such as slightly larger than atmospheric pressure, this
Sample aerogenesis and when air pressure is more than the Opening pressure of Pneumatic check valve 44 inside the cylindrical lithium battery, Pneumatic check valve 44 is opened, and is made
Aerogenesis is entered in the boring structure of the first cylinder 41 inside cylindrical lithium battery, reduces the pressure inside cylindrical lithium battery.
Cylindrical lithium battery cell embodiment two：
Now the embodiment two of cylindrical lithium battery cell provided by the utility model is illustrated.Fig. 4 and Fig. 5 are referred to,
The cylindrical lithium battery cell of the present embodiment is distinguished as with the cylindrical lithium battery cell of embodiment one：
Newel 4 is in addition to the first cylinder 41 in including above-mentioned cylindrical lithium battery cell embodiment one, in addition to one uses
In the second cylinder 42 for occupying the intraoral space of chamber 31 of neck, the second cylinder 42 is located at one end of the first cylinder 41 and is attached thereto.Group
When filling cylindrical lithium battery, the first cylinder 41 is plied in the centre hole 31, and the second cylinder 42 is located in the intraoral chamber 31 of neck and to occupy neck intraoral
The space of chamber 31, the mixed air when manufacturing cylindrical lithium battery so is likely to reduced from spatially most maximum, so as to reduce
Damage the risk of battery life.
Further, Fig. 4 and Fig. 5 are referred to, the second cylinder 42 is hollow-core construction, to mitigate cylindrical lithium battery cell and circle
The gross weight of post lithium battery.
Further, Fig. 4 and Fig. 5 are referred to, one kind as cylindrical lithium battery cell provided by the utility model is specific
Embodiment, the first cylinder 41 are hollow-core construction, and the hollow parts of the first cylinder 41 are connected with the hollow parts of the second cylinder 42
It is logical.
Further, Fig. 4 and Fig. 5 are referred to, newel 4, which is provided with, to be used to connect the passage 43 inside and outside the second cylinder 42,
Because the hollow-core construction of the first cylinder 41 is connected with the hollow-core construction of the second cylinder 42, passage can be arranged on the first cylinder
41 either on the second cylinder 42 or the first cylinder 41 or the second cylinder 42 are designed with passage 43.When cylindrical lithium battery exists
When internal aerogenesis runs up to certain pressure during use, i.e., internal aerogenesis air pressure is more than in the second cylinder 42 and the first cylinder 41
During the air pressure of the hollow-core construction in portion, aerogenesis will enter the second cylinder 42 and the first circle by passage 43 inside cylindrical lithium battery
In hollow-core construction inside post 41, to reduce the pressure inside cylindrical lithium battery, cylindrical lithium battery expansion will not thus become
Shape, it would not also influence its use and life-span.
Further, Fig. 4 and Fig. 5 are referred to, passage 43 is provided with prevention newel described in gas flow outside newel
One-way ventilating structure, i.e., passage 43 be provided with an one-way ventilating structure can prevent inside the first cylinder 41 and the second cylinder 42
Inside gas flow cylindrical lithium battery in hollow-core construction.This one-way ventilating structure can be that routine is set at passage 43
Can only one-way ventilating mechanical structure either directly at passage 43 set Pneumatic check valve.
Further, Fig. 4 and Fig. 5 are referred to, in order to easily manufactured, the one-way ventilating structure is Pneumatic check valve.
Further, the first cylinder 41 and the boring structure of the second cylinder 42 carry out vacuumize process, i.e., first in advance
The boring structure of the cylinder 42 of cylinder 41 and second is vacuum state in a pre-installation, and Pneumatic check valve 44 has certain unlatching
Pressure, for example slightly larger than atmospheric pressure, aerogenesis and air pressure are more than the unlatching of Pneumatic check valve 44 so inside cylindrical lithium battery
During pressure, Pneumatic check valve 44 is opened, and aerogenesis inside cylindrical lithium battery is entered the interior of the first cylinder 41 and the second cylinder 42
In portion's hollow-core construction, the pressure inside cylindrical lithium battery is reduced.
The other structures of the cylindrical lithium battery cell of the present embodiment and the cylindrical lithium battery cell other structures of embodiment one
It is identical, it will not be repeated here.
The utility model additionally provides a kind of lithium battery, including battery core Package casing, the electricity that is filled with battery core Package casing
Solve liquid and above-mentioned cylindrical lithium battery cell.
The utility model embodiment provide cylindrical lithium battery compared with prior art, by cylindrical lithium battery cell
Newel is set in centre bore, the space plied in the centre in hole, reduces the total amount that air is mixed into when manufacturing cylindrical lithium battery, from
And reduce the risk of infringement battery life.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. cylindrical lithium battery cell, including core, the core includes cathode sheet, anode pole piece and the isolation wound after stacking
Film, the barrier film have centre bore between the cathode sheet and the anode pole piece in the core, its feature exists
In：Also include a newel in the centre bore, the newel includes the first circle being adapted with the centre bore
Post.
2. cylindrical lithium battery cell as claimed in claim 1, it is characterised in that：First cylinder is hollow-core construction.
3. cylindrical lithium battery cell as claimed in claim 2, it is characterised in that：First cylinder is provided with described for connecting
Passage inside and outside first cylinder.
4. cylindrical lithium battery cell as claimed in claim 1, it is characterised in that：The newel also includes one and is used to occupy neck
Second cylinder of intraoral cavity space, second cylinder are connected with one end of first cylinder.
5. cylindrical lithium battery cell as claimed in claim 4, it is characterised in that：Second cylinder is hollow-core construction.
6. cylindrical lithium battery cell as claimed in claim 5, it is characterised in that：First cylinder is hollow-core construction, described
The hollow parts of first cylinder are connected with the hollow parts of second cylinder.
7. cylindrical lithium battery cell as claimed in claim 6, it is characterised in that：The newel, which is provided with, to be used to connect described the
Passage inside and outside two cylinders.
8. the cylindrical lithium battery cell as described in claim 3 or 7, it is characterised in that：The passage be provided with prevent it is described in
One-way ventilating structure in stem described in gas flow outside newel.
9. cylindrical lithium battery cell as claimed in claim 8, it is characterised in that：The one-way ventilating structure is Pneumatic unidirectional
Valve.
10. cylindrical lithium battery, including battery core Package casing and the electrolyte that is filled with the battery core Package casing, its feature exist
In：Also include cylindrical lithium battery cell as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799652.5U CN206931675U (en) | 2017-07-03 | 2017-07-03 | Cylindrical lithium battery cell and cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799652.5U CN206931675U (en) | 2017-07-03 | 2017-07-03 | Cylindrical lithium battery cell and cylindrical lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206931675U true CN206931675U (en) | 2018-01-26 |
Family
ID=61353677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720799652.5U Active CN206931675U (en) | 2017-07-03 | 2017-07-03 | Cylindrical lithium battery cell and cylindrical lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206931675U (en) |
-
2017
- 2017-07-03 CN CN201720799652.5U patent/CN206931675U/en active Active
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