CN108735961A - A kind of no lug solid state lithium battery - Google Patents
A kind of no lug solid state lithium battery Download PDFInfo
- Publication number
- CN108735961A CN108735961A CN201810736172.3A CN201810736172A CN108735961A CN 108735961 A CN108735961 A CN 108735961A CN 201810736172 A CN201810736172 A CN 201810736172A CN 108735961 A CN108735961 A CN 108735961A
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- Prior art keywords
- layer
- cathode
- supporting body
- positive
- coating layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
Abstract
The invention discloses a kind of no lug solid state lithium batteries, including anode（1）, cathode（2）, membrane layer（3）, the anode（1）Including positive supporting body（11）With positive coating layer（12）, the cathode（2）Including cathode supporting body（21）With cathode coating layer（22）, in the positive supporting body（11）With the cathode supporting body（21）On be all provided with it is fluted（4）, the groove（4）One or both ends leak out in the positive supporting body（11）With the cathode supporting body（21）One side；The present invention is designed using foil layer instead of existing battery pole ear, is not only solved the various problems come by lug gauge strips, can also be realized the ultrathin of lithium battery.
Description
Technical field
The present invention relates to lithium battery manufacturing fields, and in particular to a kind of no lug solid state lithium battery.
Background technology
With the continuous development and improvement of ultrathin lithium battery, the structure of existing lithium battery does not adapt to micro electric
The demand of sub- equipment, especially existing lithium battery pole ear is most of to be designed using nickel foil or tinfoil paper, largely increases
The thickness of solid state lithium battery.
Invention content
The technical problem to be solved by the present invention is to provide a kind of no lug solid state lithium batteries, and lithium battery on the one hand may be implemented
On the other hand ultrathin because being arranged without lug, can also solve the problems, such as lithium battery because various caused by lug.
In order to solve the above technical problems, the technical scheme is that：A kind of no lug solid state lithium battery, including anode,
Cathode, membrane layer, the anode include positive supporting body and positive coating layer, and the cathode includes cathode supporting body and bears
Pole coating layer, be all provided on the positive supporting body and the cathode supporting body fluted, described groove one end or
Both ends leak out on one side of the positive supporting body and the cathode supporting body, and the positive coating layer is coated on described
Positive supporting body be equipped with the one side of the groove, the cathode coating layer is coated on the cathode supporting body and is equipped with institute
The one side for the groove stated；The membrane layer is arranged between the positive coating layer and the cathode coating layer, described
Anode and the described cathode package membrane layer, the anode mutually sealed with the edge of the cathode.
Preferably, the positive supporting body and the cathode supporting body include five layer materials, and five layer materials are successively
The sequence of superposition is PP layers, the first glue layer, foil layer, the second glue layer and nylon layer, the positive coating layer and described
Cathode coating layer be coated on the one sides of the PP layers.
Preferably, the bottom portion of groove is the one side of the foil layer.
Preferably, the foil layer of the positive supporting body be aluminium foil, the cathode supporting body foil layer be copper foil or
Nickel foil.
Preferably, the thickness of PP layers is 0.01mm-0.07mm, and the thickness of first glue layer is
The thickness of 0.003mm-0.007mm, the foil layer are 0.01mm-0.07mm, and the thickness of second glue layer is
The thickness of 0.003mm-0.007mm, the nylon layer are 0.015mm-0.045mm.
Preferably, the thickness of the positive coating layer and the cathode coating layer is 0.05mm-1mm.
Preferably, the membrane layer is PP films or PE films.
The advantageous effect that the present invention realizes：The present invention is designed using foil layer instead of existing battery pole ear, is not only solved
Because of the various problems that lug gauge strips come, the ultrathin of lithium battery can also be realized.Moreover, the present invention positive supporting body and
Cathode supporting body is all made of five layers of design, and PP layers are played the role of encapsulation, and the first glue layer and the second glue layer play stickup and make
With foil layer plays the role of waterproof, and nylon layer can improve intensity.Meanwhile the foil layer of cathode supporting body of the present invention uses
On the one hand nickel foil or copper foil can solve the particularization application problem of lithium battery, on the other hand, can also solve the thickness of lithium battery
Degree problem can be applied in more super-thin electronic equipment.
Description of the drawings
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the cross-sectional view of this practicality cathode supporting body.
The title or process name for the corresponding component that number or letter in figure represent：1. anode, 11. positive supporting bodies,
12. positive coating layer, 2. cathode, 21. cathode supporting bodies, 32. cathode coating layers, 3. membrane layers, 4. grooves, 5.PP layers, 6. the
One glue layer, 7. foil layers, 8. second glue layers, 9. nylon layers.
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable；Same or analogous label corresponds to same or similar
Component；The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent.
Specific implementation mode
In order to facilitate the understanding of those skilled in the art, being carried out to the present invention below in conjunction with attached drawing and embodiment further
Detailed description.
A kind of no lug solid state lithium battery, including anode 1, cathode 2, membrane layer 3, anode 1 include 11 He of positive supporting body
Positive coating layer 12, cathode 2 includes cathode supporting body 21 and cathode coating layer 22, in positive supporting body 11 and cathode supporting body 21
On be all provided with fluted 4,4 one or both ends of groove are leaked out in one side of positive supporting body 11 and cathode supporting body 21, anode coating
Layer 12 is coated on the one side for the groove 4 that positive supporting body 11 is equipped with, and cathode coating layer 22 is coated on cathode supporting body 21 equipped with recessed
The one side of slot 4；Membrane layer 3 is arranged between positive coating layer 12 and cathode coating layer 22, and anode 1 and cathode 2 wrap up membrane layer
3, anode 1 is mutually sealed with the edge of cathode 2.
Specifically, positive supporting body 11 and cathode supporting body 21 include five layer materials, five layer materials are sequentially overlapped suitable
Sequence is PP layers 5, the first glue layer 6, foil layer 7, the second glue layer 8 and nylon layer 9, positive coating layer 12 and cathode coating layer 22
It is coated on the one side of PP layers 5.
Specifically, 4 bottom of groove is the one side of foil layer 7.
Specifically, the foil layer 7 of positive supporting body 11 is aluminium foil, 21 foil layer 7 of cathode supporting body is copper foil or nickel foil.Just
The effect of pole supporting body and cathode supporting body is afflux.
Specifically, the thickness of PP layers 5 is 0.01mm-0.07mm, the thickness of the first glue layer 6 is 0.003mm-0.007mm,
The thickness of foil layer 7 is 0.01mm-0.07mm, and the thickness of the second glue layer 8 is 0.003mm-0.007mm, the thickness of nylon layer 9
For 0.015mm-0.045mm.
Specifically, the thickness of positive coating layer 12 and cathode coating layer 22 is 0.05mm-1mm.
Specifically, membrane layer 3 is PP films or PE films.
Embodiment one
No lug solid state lithium battery above-mentioned is combined into specific way in reality, does corresponding elaboration, it is specific as follows：Without lug
Solid state lithium battery, including anode 1, cathode 2, membrane layer 3, anode 1 include positive supporting body 11 and positive coating layer 12, cathode 2
Including cathode supporting body 21 and cathode coating layer 22, fluted 4 are all provided on positive supporting body 11 and cathode supporting body 21, groove
4 one or both ends leak out on one side of positive supporting body 11 and cathode supporting body 21, and positive coating layer 12 is coated on positive carrying
The one side for the groove 4 that body 11 is equipped with, cathode coating layer 22 are coated on the one side that cathode supporting body 21 is equipped with groove 4；Membrane layer 3 is set
It sets between positive coating layer 12 and cathode coating layer 22, anode 1 and cathode 2 wrap up membrane layer 3, the edge of anode 1 and cathode 2
Mutually seal.Positive coating layer 12 is made of solvent, positive electrode and electrolyte material.Cathode coating layer 22 is by solvent, cathode material
Material and electrolyte material are made.Positive electrode includes but not limited to cobalt acid lithium, LiMn2O4, LiFePO4, ternary material, conduction
Agent, graphene, carbon nanotube, polymer glue powder；Negative material：Including but not limited to artificial graphite, natural graphite, silicon-carbon are negative
Pole, conductive agent, graphene, carbon nanotube, polymer glue powder；Solvent：Including but not limited to deionized water, NMP（N-methyl pyrroles
Alkanone）, acetone, PS, EC；Electrolyte material：Including but not limited to DMC, EMC, DEC, PVDF, CMC, γ-fourth lactones, hexafluoro phosphorus
Sour lithium, bis trifluoromethyl Huang imide li, silica, ceramic powder.
Specifically, positive supporting body 11 and cathode supporting body 21 include five layer materials, five layer materials are sequentially overlapped suitable
Sequence is PP layers 5, the first glue layer 6, foil layer 7, the second glue layer 8 and nylon layer 9, positive coating layer 12 and cathode coating layer 22
It is coated on the one side of PP layers 5.
Specifically, 4 bottom of groove is the one side of foil layer 7,4 one or both ends of groove leak out in positive supporting body 11 and bear
One side of pole supporting body 21；Groove setting in this way can ensure that foil layer 7 becomes lug, instead of existing additional lug.Anode
The foil layer 7 of supporting body 11 is aluminium foil, and 21 foil layer 7 of cathode supporting body is copper foil.
Specifically, the thickness of PP layers 5 is 0.05mm, the thickness of the first glue layer 6 is 0.006mm, and the thickness of foil layer 7 is
The thickness of 0.03mm, the second glue layer 8 are 0.005mm, and the thickness of nylon layer 9 is 0.035mm.
Specifically, the thickness of positive coating layer 12 and cathode coating layer 22 is 0.35mm.
Specifically, membrane layer 3 is PP films or PE films.
Embodiment two
As embodiment one with two basic setup of embodiment is, primary difference is that：Cathode supporting body 21 is nickel foil.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (7)
1. a kind of no lug solid state lithium battery, it is characterised in that：Including anode（1）, cathode（2）, membrane layer（3）, it is described just
Pole（1）Including positive supporting body（11）With positive coating layer（12）, the cathode（2）Including cathode supporting body（21）And cathode
Coating layer（22）, in the positive supporting body（11）With the cathode supporting body（21）On be all provided with it is fluted（4）, described
Groove（4）One or both ends leak out in the positive supporting body（11）With the cathode supporting body（21）One side, institute
The positive coating layer stated（12）It is coated on the positive supporting body（11）Equipped with the groove（4）One side, it is described negative
Pole coating layer（22）It is coated on the cathode supporting body（21）Equipped with the groove（4）One side；The membrane layer（3）
It is arranged in the positive coating layer（12）With the cathode coating layer（22）Between, the anode（1）It is born with described
Pole（2）The package membrane layer（3）, the anode（1）With the cathode（2）Edge mutually seal.
2. no lug solid state lithium battery according to claim 1, it is characterised in that：The positive supporting body（11）And institute
The cathode supporting body stated（21）Include five layer materials, the sequence that five layer materials are sequentially overlapped is PP layers（5）, the first glue layer
（6）, foil layer（7）, the second glue layer（8）And nylon layer（9）, the positive coating layer（12）With the cathode coating layer
（22）It is coated on the PP layers（5）One side.
3. no lug solid state lithium battery according to claim 2, it is characterised in that：The groove（4）Bottom is described
Foil layer（7）One side.
4. no lug solid state lithium battery according to claim 2 or 3, it is characterised in that：The positive supporting body（11）
Foil layer（7）For aluminium foil, the cathode supporting body（21）Foil layer（7）For copper foil or nickel foil.
5. no lug solid state lithium battery according to claim 2, it is characterised in that：The PP layers（5）Thickness be
0.01mm-0.07mm, first glue layer（6）Thickness be 0.003mm-0.007mm, the foil layer（7）Thickness
Degree is 0.01mm-0.07mm, second glue layer（8）Thickness be 0.003mm-0.007mm, the nylon layer（9）
Thickness be 0.015mm-0.045mm.
6. ultra-thin lithium cell lug according to claim 1, it is characterised in that：The positive coating layer（12）With it is described
Cathode coating layer（22）Thickness be 0.05mm-1mm.
7. ultra-thin lithium cell lug according to claim 1, it is characterised in that：The membrane layer（3）For PP films or PE
Film.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736172.3A CN108735961A (en) | 2018-07-06 | 2018-07-06 | A kind of no lug solid state lithium battery |
| PCT/CN2018/116822 WO2020006967A1 (en) | 2018-07-06 | 2018-11-22 | Tab-free solid lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736172.3A CN108735961A (en) | 2018-07-06 | 2018-07-06 | A kind of no lug solid state lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108735961A true CN108735961A (en) | 2018-11-02 |
Family
ID=63925749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810736172.3A Pending CN108735961A (en) | 2018-07-06 | 2018-07-06 | A kind of no lug solid state lithium battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108735961A (en) |
| WO (1) | WO2020006967A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020006967A1 (en) * | 2018-07-06 | 2020-01-09 | 惠州赛尔雷新能源科技有限公司 | Tab-free solid lithium battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681858A (en) * | 2015-01-30 | 2015-06-03 | 中南大学 | Ultrathin flexible lithium ion battery and preparation method thereof |
| CN206758546U (en) * | 2017-04-25 | 2017-12-15 | 东莞市卓高电子科技有限公司 | One kind is without the ultra-thin soft pack cell of lug |
| CN107611480A (en) * | 2017-08-07 | 2018-01-19 | 湖南立方新能源科技有限责任公司 | A kind of electrodeless lug lithium ion battery |
| CN208986079U (en) * | 2018-07-06 | 2019-06-14 | 惠州赛尔雷新能源科技有限公司 | A kind of no tab solid state lithium battery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390628A (en) * | 2015-10-28 | 2016-03-09 | 广东烛光新能源科技有限公司 | Electrochemical cell and preparation method thereof |
| CN105529501A (en) * | 2016-01-21 | 2016-04-27 | 东莞市海量能源科技有限公司 | Preparation method of thin lithium battery |
| CN108735961A (en) * | 2018-07-06 | 2018-11-02 | 惠州赛尔雷新能源科技有限公司 | A kind of no lug solid state lithium battery |
| CN108735956A (en) * | 2018-07-06 | 2018-11-02 | 惠州赛尔雷新能源科技有限公司 | A kind of ultrathin flexible battery |
-
2018
- 2018-07-06 CN CN201810736172.3A patent/CN108735961A/en active Pending
- 2018-11-22 WO PCT/CN2018/116822 patent/WO2020006967A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681858A (en) * | 2015-01-30 | 2015-06-03 | 中南大学 | Ultrathin flexible lithium ion battery and preparation method thereof |
| CN206758546U (en) * | 2017-04-25 | 2017-12-15 | 东莞市卓高电子科技有限公司 | One kind is without the ultra-thin soft pack cell of lug |
| CN107611480A (en) * | 2017-08-07 | 2018-01-19 | 湖南立方新能源科技有限责任公司 | A kind of electrodeless lug lithium ion battery |
| CN208986079U (en) * | 2018-07-06 | 2019-06-14 | 惠州赛尔雷新能源科技有限公司 | A kind of no tab solid state lithium battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020006967A1 (en) * | 2018-07-06 | 2020-01-09 | 惠州赛尔雷新能源科技有限公司 | Tab-free solid lithium battery |
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| Publication number | Publication date |
|---|---|
| WO2020006967A1 (en) | 2020-01-09 |
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Application publication date: 20181102 |