CN205944154U - Fastening lithium ionic cell - Google Patents
Fastening lithium ionic cell Download PDFInfo
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- CN205944154U CN205944154U CN201620913544.1U CN201620913544U CN205944154U CN 205944154 U CN205944154 U CN 205944154U CN 201620913544 U CN201620913544 U CN 201620913544U CN 205944154 U CN205944154 U CN 205944154U
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- Prior art keywords
- pole piece
- ionic cell
- lithium ionic
- piece
- peripheral dimension
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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 fastening lithium ionic cell, include anodal casing, set gradually conducting resin, pole piece, diaphragm, lithium piece, foam nickel and electrically conductive gasket in the anodal casing and place electrically conductive gasket top and with the negative pole casing that anodal casing is connected, the pole piece passes through the conducting resin location is in intermediate position in the anodal casing. The utility model discloses a fastening lithium ionic cell, the structure is inseparable, and the preparation process is simply controllable, and the preparation qualification rate is high, and internal resistance of cell is low, and the data accuracy is high, and the uniformity is good, and the battery discharge capacity is high.
Description
Technical field
The utility model is related to cell art, more particularly, to a kind of fastening lithium ionic cell.
Background technology
Fastening lithium ionic cell is mainly used in the research and development of material science, be widely used in laboratory and industrial for
The research and analysis of material property, have rapidly and effectively feature.In terms of fastening lithium ionic cell making, the most frequently used at present
Preparation method be：Put positive pole housing → put pole piece in anode cover body → put barrier film in anode cover body → lithium piece is positioned over
On barrier film → place nickel foam → placement negative pole housing → sealing, and place dropping electrolyte during above-mentioned each part, thus complete
Become the making of fastening lithium ionic cell.
Above-mentioned preparation method needs strict control pole piece position, need to ensure in the middle of housing, operating difficulties, and precision is difficult
To control, and in an assembling process, due to artificial control problem, pole piece position there will be a certain degree of movement it is difficult to ensure
The performance completely of pole piece capacity.Additionally, the battery consistency that above-mentioned method makes is poor, qualification rate is low, and internal resistance is high, battery performance
Difficult to reach requires, and is mainly reflected in that discharge capacity is low, cyclical stability is poor.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of close structure, the good buckle type lithium-ion of uniformity
Battery.
The utility model solves its technical problem and be employed technical scheme comprise that：There is provided a kind of fastening lithium ionic cell, bag
Include positive pole housing, the conducting resinl being successively set in described anode cover body, pole piece, barrier film, lithium piece, nickel foam and conductive spacer,
And the negative pole housing being placed on above described conductive spacer and being connected with described positive pole housing；Described pole piece is by described conduction
Glue is positioned at centre position in described anode cover body.
Preferably, described pole piece is metal oxide pole piece or graphite pole piece.
Preferably, to be provided with the side of active material layer, dorsad described conducting resinl is placed on described conducting resinl to described pole piece
On.
Preferably, the peripheral dimension of described barrier film is more than the peripheral dimension of described pole piece.
Preferably, the peripheral dimension of described lithium piece is preferably greater than the peripheral dimension of described pole piece.
Preferably, the peripheral dimension of described conductive spacer is more than the peripheral dimension of described nickel foam.
Preferably, the peripheral dimension of described conductive spacer is less than the peripheral dimension of described barrier film.
Preferably, described fastening lithium ionic cell also includes the electrolyte being arranged in described anode cover body；Described electrolysis
Liquid forms electrolyte layer in described anode cover body.
Preferably, the liquid level of described electrolyte layer is located between described barrier film and described lithium piece.
The beneficial effects of the utility model：Pole piece is positioned in anode cover body by conducting resinl, and assembling process does not have position
Put the problem of movement, by adding conductive spacer between nickel foam and negative pole housing, improve button cell internal tightness, fall
Low contact internal resistance, cycle performance of battery is stable.Fastening lithium ionic cell of the present utility model, close structure, preparation process is simple
Controlled, make qualification rate height, the internal resistance of cell is low, and data accuracy is high, and uniformity is good, and discharge capacity of the cell is high.
Brief description
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the cross-sectional view of the fastening lithium ionic cell of the utility model one embodiment.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now comparison accompanying drawing is detailed
Specific embodiment of the present utility model is described.
As shown in figure 1, the fastening lithium ionic cell of the utility model one embodiment, including positive pole housing 10, just it is arranged on
Conducting resinl 11 in pole housing 10, pole piece 12, barrier film 13, lithium piece 14, nickel foam 15 and conductive spacer 16 and be placed on conduction
Pad 16 top the negative pole housing 20 being connected with positive pole housing 10.Negative pole housing 20 and positive pole housing 10 connect formation closing
Battery case, pole piece 12, barrier film 13, lithium piece 14 etc. are closed wherein.
In this fastening lithium ionic cell, as negative plate, pole piece 12, as positive plate, can be metal oxide to lithium piece 14
Pole piece or graphite pole piece.
To be provided with the side of active material layer, dorsad conducting resinl 11 is placed on conducting resinl 11 pole piece 12.In assembling process
In, pole piece 12 is positioned at centre position in positive pole housing 10 by conducting resinl 11, when the parts such as follow-up barrier film 13, lithium piece 14 are put into
The problems such as will not be subjected to displacement is it is ensured that the qualification rate of battery.
Conducting resinl 11 is the conducting resinl of liquid or solid-state, is arranged on the centre position of positive pole housing 10 inner bottom surface, will
Pole piece 12 is adhered fixed the centre position in positive pole housing 10.
When barrier film 13, lithium piece 14, nickel foam 15 and conductive spacer 16 are inserted in positive pole housing 10 successively, controlled just
The centre position of pole housing 10.And, the peripheral dimension of barrier film 13 is more than the peripheral dimension of pole piece 12, thus can cover pole piece 12
Lid.
Additionally, the size of lithium piece 14 is preferably greater than the size of pole piece 12.The size of conductive spacer 16 is more than nickel foam 15
Size, can be covered.
Conductive spacer 16 can be metallic gasket.This conductive spacer 16 is located between nickel foam 15 and negative pole housing 20, improves
Inside battery tight ness rating, reduces contact internal resistance, and cycle performance of battery is stable.Preferably, the peripheral dimension of conductive spacer 16 is less than
The peripheral dimension of barrier film 13.
Additionally, this fastening lithium ionic cell also includes the electrolyte being arranged in positive pole housing 10, in positive pole housing 10
Form electrolyte layer.Electrolyte layer is located between barrier film 13 and lithium piece 14.
Electrolyte can be added in positive pole housing 10 using dropping mode, and graded adds.Specifically, put in pole piece 12
After entering in positive pole housing 10, dropping electrolyte, pole piece 12 is flooded, this electrolyte forms first in positive pole housing 10 for the first time
Layer electrolyte layer 101；Pole piece 12 also can be adsorbed on the inner bottom surface of positive pole housing 10 by ground floor electrolyte layer 101.In pole
After placing barrier film 13 on piece 12, then carry out second dropping electrolyte, barrier film 13 is flooded, this electrolyte is in positive pole housing 10
Form second layer electrolyte layer 102, barrier film 13 also can be adsorbed on pole piece 12 by this second layer electrolyte layer 102, contribute to
The fixation of barrier film 13.
The preparation method of fastening lithium ionic cell of the present utility model, with reference to Fig. 1, it comprises the following steps：
S1, positive pole housing 10 is positioned, conducting resinl 11 is set in positive pole housing 10.
Conducting resinl 11 is preferably provided on the inner bottom surface of positive pole housing 10, the centre position of further preferred inner bottom surface.Should
Conducting resinl 11 can be the conducting resinl of liquid or solid-state.
S2, by pole piece 12 correspondence be placed on conducting resinl 11 in positive pole housing 10 centre position, pole piece 12 pass through conducting resinl
11 are positioned in positive pole housing 10, will not be subjected to displacement in follow-up assembling process.
To be provided with the side of active material layer, dorsad conducting resinl 11 is placed on conducting resinl 11 pole piece 12.Pole piece 12 is as just
Pole piece, can be metal oxide pole piece or graphite pole piece.
S3, barrier film 13, lithium piece 14, nickel foam 15 are placed sequentially in the top of pole piece 12.
During placement, control barrier film 13, lithium piece 14 and nickel foam 15 centrally located in positive pole housing 10.Wherein, every
The peripheral dimension of film 13 is more than the peripheral dimension of pole piece 12, thus can cover pole piece 12.
S4, conductive spacer 16 is placed on above nickel foam 15.
Conductive spacer 16 can be metallic gasket.Preferably, the peripheral dimension of conductive spacer 16 is less than the periphery chi of barrier film 13
Very little.
S5, negative pole housing 20 is placed into metallic gasket 15 top and is connected with positive pole housing 10, with positive pole housing 10 shape
Become the battery container of closing.
Conductive spacer 16 is located between nickel foam 15 and negative pole housing 20 in battery container, improves inside battery tight
Degree, reduces contact internal resistance, and cycle performance of battery is stable.
It is to be appreciated that in preparation method of the present utility model, before step S 4, further comprising the steps of：
The dropping electrolyte toward in positive pole housing 10.
Preferably, may include toward the step of dropping electrolyte in positive pole housing 10：
After pole piece 12 positioning, the dropping electrolyte toward in positive pole housing 10, electrolyte floods to pole piece 12.This dropping
Electrolyte can form ground floor electrolyte layer 101 in positive pole housing 10, and pole piece 12 can be adsorbed by ground floor electrolyte layer 101
On the inner bottom surface of positive pole housing 10.
After barrier film 13 is placed on pole piece 12, drip electrolyte again toward in positive pole housing 10, electrolyte floods to barrier film
On 13.The electrolyte of this dropping forms second layer electrolyte layer 102 in positive pole housing 10, and barrier film 13 can be by this second layer electricity
Solution liquid layer 102 adsorbs on pole piece 12, contributes to the fixation of barrier film 13.
Battery of the present utility model, preparation process is simply controlled, makes qualification rate height, and the prepared internal resistance of cell is low, data
Accuracy is high, and uniformity is good, close structure, and discharge capacity of the cell is high.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
The equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in
Other related technical fields, are all included in the same manner in scope of patent protection of the present utility model.
Claims (9)
1. a kind of fastening lithium ionic cell is it is characterised in that including positive pole housing, being successively set on leading in described anode cover body
Electric glue, pole piece, barrier film, lithium piece, nickel foam and conductive spacer and be placed on above described conductive spacer and with described anode cover
The negative pole housing that body connects；Described pole piece is positioned at centre position in described anode cover body by described conducting resinl.
2. fastening lithium ionic cell according to claim 1 it is characterised in that described pole piece be metal oxide pole piece or
Graphite pole piece.
3. fastening lithium ionic cell according to claim 1 is it is characterised in that described pole piece is to be provided with active material layer
Dorsad described conducting resinl is placed on described conducting resinl for side.
4. fastening lithium ionic cell according to claim 1 is it is characterised in that the peripheral dimension of described barrier film is more than described
The peripheral dimension of pole piece.
5. fastening lithium ionic cell according to claim 1 is it is characterised in that the peripheral dimension of described lithium piece is preferably greater than
The peripheral dimension of described pole piece.
6. fastening lithium ionic cell according to claim 1 is it is characterised in that the peripheral dimension of described conductive spacer is more than
The peripheral dimension of described nickel foam.
7. fastening lithium ionic cell according to claim 6 is it is characterised in that the peripheral dimension of described conductive spacer is less than
The peripheral dimension of described barrier film.
8. the fastening lithium ionic cell according to any one of claim 1-7 is it is characterised in that described fastening lithium ionic cell
Also include the electrolyte being arranged in described anode cover body；Described electrolyte forms electrolyte layer in described anode cover body.
9. fastening lithium ionic cell according to claim 8 is it is characterised in that the liquid level of described electrolyte layer is positioned at described
Between barrier film and described lithium piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620913544.1U CN205944154U (en) | 2016-08-22 | 2016-08-22 | Fastening lithium ionic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620913544.1U CN205944154U (en) | 2016-08-22 | 2016-08-22 | Fastening lithium ionic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944154U true CN205944154U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620913544.1U Active CN205944154U (en) | 2016-08-22 | 2016-08-22 | Fastening lithium ionic cell |
Country Status (1)
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| CN (1) | CN205944154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299164A (en) * | 2016-08-22 | 2017-01-04 | 深圳拓邦新能源技术有限公司 | Button type lithium ion battery and preparation method thereof |
-
2016
- 2016-08-22 CN CN201620913544.1U patent/CN205944154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299164A (en) * | 2016-08-22 | 2017-01-04 | 深圳拓邦新能源技术有限公司 | Button type lithium ion battery and preparation method thereof |
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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: 20170503 Address after: 516000 Guangdong province Huizhou Zhongkai high tech Zone Dongjiang High-tech Industrial Park in Dongxing District, East New Road No. 113 Patentee after: Huizhou Tuobang Electric Technology Co., Ltd. Address before: Baoan District Shiyan Street Lang heart community Liyuan Industrial Zone Industrial Park plant in Shenzhen city in 518000 top 2 in Guangdong Province, four Patentee before: Shenzhen Tuobang Automobile Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |