CN108598559A - a kind of flexible lithium ion battery - Google Patents
a kind of flexible lithium ion battery Download PDFInfo
- Publication number
- CN108598559A CN108598559A CN201810817927.2A CN201810817927A CN108598559A CN 108598559 A CN108598559 A CN 108598559A CN 201810817927 A CN201810817927 A CN 201810817927A CN 108598559 A CN108598559 A CN 108598559A
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- China
- Prior art keywords
- positive
- ion battery
- lithium ion
- electrode
- negative electrode
- Prior art date
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Classifications
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention relates to a kind of bent polymer Li-ion battery, including soft shell, positive and negative plate is filled in the soft shell；The positive and negative plate is punched out into positive and negative electrode blade unit using punching cutter, is connected by empty foil between the positive and negative electrode blade unit, and positive and negative electrode top draws encapsulation there are lug and carries out charge and discharge, and the positive and negative electrode blade unit lamination assembling is at battery packet；The battery packet is positioned in molding flexible shell, is then packaged to shell.The present invention makes simple, practical, easy to produce bent polymer lithium ion battery cell, is suitable for each mobile device and wearable device.
Description
Technical field
The present invention relates to technical field of lithium ion, and in particular to a kind of flexible lithium ion battery.
Background technology
Lithium ion is with its high-energy density, the advantages that high working voltage, long circulation life Environmental Safety, all the time
Largely universal use is obtained in portable battery product.As battery industry continues to develop, portable consumer class battery product work(
Can be more and more, increasingly improve powerful, especially the appearance of smart mobile phone, tablet computer, wearable device, function are strong
Greatly, component is various, larger to electrical demand, and charge and discharge number is frequent, to the battery energy density that random fit arrives, recycles the longevity
Life, security performance require higher and higher.Mobile device, wearable device lithium ion battery external form type are more.The present invention is for existing
Shape provides a kind of flexible polymer lithium ion battery, has in mobile device, wearable field and stronger manufacture and apply
Property.
Invention content
The purpose of the present invention is being directed to existing technology vacancy, provide a kind of flexible polymer flexible package aluminum plastic film polymer lithium from
Sub- battery, make it is simple, practical, it is easy to produce and be suitable for each mobile device and wearable device.
In order to solve the above technical problems, technical solution provided by the invention is：
A kind of flexible lithium ion battery, including soft shell are filled with positive and negative plate in the soft shell；It is described just,
Negative plate is punched out into positive and negative electrode blade unit using punching cutter, is connected by empty foil between the positive and negative electrode blade unit, just,
Cathode top draws encapsulation there are lug and carries out charge and discharge, and the positive and negative electrode blade unit lamination assembling is at battery packet；The electricity
Chi Xin packets are positioned in molding flexible shell, are then packaged to shell.
Further, the outer housing is flexible shell, it is preferred that using comprising PP, PE, PET, nylon and with metal layer
Flexible material, such as aluminum plastic film, steel plastic film.
The positive and negative electrode electrode is electrode slice made from traditional lithium-ion battery material, by being punched into pattern in flakes.
The positive and negative electrode combination is lamination, and the diaphragm forms an entirety with anode.
The diaphragm is adopted as PP or PE or mixed matrix, and PAA or PVDF or PAA, PVDF and pottery are coated in membrane surface
The coat that the mixture of porcelain powder is formed.
It is that rectangular disjunctor rushes shell that hull shape shape is rushed in the shell molding.
A in the positive plate is electrode width 10-50mm, and b is electrode spacing 4-10mm, and c is electrode length 10-
50mm., positive-pole base material thickness 10um~25um.
D in the negative plate is electrode width 10-50mm, and e is electrode spacing 4-10mm, and f is electrode length 10-
50mm, base material of cathode thickness 6um~15um.
Battery size is as follows, and it is 4-60mm that g, which is battery core body width for battery core width 6-70mm, h, and I is that battery core unit is wide
Degree is 6-50mm, and it be battery core package width is 3~8mm that J, which is battery core cell spacing 2~8mm, M, K be battery core height 30~
300mm。
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention mainly uses laminated type technique, and positive electrode and negative electrode are all punched out squarely using punching cutter
Trellis, positive and negative electrode are dielectrically separated from using diaphragm paper before, and foil of leaving a blank at the top of electrode slice carries out transfer electrode lug.Lamination is made
Core packet be positioned in the grid shell of forming and be packaged obtained battery core, battery core is because electrode is formed one by one with shell
Unit, main stress is the flexible membrane between unit during bending, will not damage internal electrode.The battery core of flexible bendable
It is applicable to each field of mobile equipment, especially has higher applicability in wearable device.
Description of the drawings
Fig. 1：Diaphragm body diagram.
Fig. 2：The structural schematic diagram of positive plate, negative plate.
Fig. 3：The assembly dimensional structure diagram of battery packet.
Fig. 4：Battery core finished product schematic diagram.
In figure：1- positive or negative pole ears, 2- cathode or anode ear, 3- battery case body edge sealing, this position of 4- battery pole pieces
Value, 5- are the foil position of electrode unit junction.
Specific implementation mode
The present invention is further explained in the light of specific embodiments.
A kind of flexible lithium ion battery, including soft shell are filled with positive and negative plate in the soft shell；It is described just,
Negative plate is punched out into positive and negative electrode blade unit using punching cutter, is connected by empty foil between the positive and negative electrode blade unit, just,
Cathode top draws encapsulation there are lug and carries out charge and discharge, and the positive and negative electrode blade unit lamination assembling is at battery packet；The electricity
Chi Xin packets are positioned in molding flexible shell, are then packaged to shell.
The positive and negative plate of the present invention for using punching cutter to be punched applies for the pole piece coated with electrode active material
It is techniques well known to cover adoptable material and method, is not specifically noted herein.
Battery capacity, the size of flexible bendable lithium ion battery are measured below, used material etc. is specific
Content is only to carry out measuring to the flexible type lithium ion battery of invention to be illustrated, and non-specifically limit.
Embodiment 1
By positive active material LiCo2, positive electrode binder PVDF, conductive agent carbon black, solvent NMP is with ratio 100：
1.6.1.2：45 batching mode dispensing is mixed to prepare slurry, and slurry is coated uniformly on aluminium foil afflux using transfer coated mode
On body it is two-sided and dry, roll, cut after be prepared into anode pole piece.Negative electrode active material graphite, cathode dispersing agent C MC, cathode
Binder SBR, conductive agent conductive carbon black and aqueous solvent are with ratio 100：2：3：2：90 mode dispensing is mixed to prepare slurry.It will slurry
Material using transfer coated mode be coated uniformly on two-sided in copper foil current collector and dry, roll, be punched after be prepared into thickness
100um, charge level product is 10cm2,8 layers of the number of plies, corresponding cathode have the identical number of plies, battery core unit number 3 to correspond to negative electrode
Wide and height all standing is more than anode.
Positive and negative plate obtained above and diaphragm (PP/PE/PP) are pressed into lamination process into a square by certain together
Lithium-ion electric core, the lithium ion battery for entering to be made to have after shell (plastic-aluminum packaging film is formed), fluid injection electrolyte.After being melted into advance.
Exhaust sealing, trimming, room temperature standing are after 3 days, sorting capacity (charges：0.5 charges to 4.35V, and constant-voltage charge to electric current is less than
0.02C, electric discharge with 0.5C are discharged to 3.0V) it 3.86V is charged to 0.5C measures its thickness and capacity, finished product electricity
Pond.
Embodiment 2
The present embodiment and raw material used by embodiment 1, production stage, detection method are essentially identical, unique difference
Place, this example provide thickness 100um, have charge level product to be 10cm2, and 8 layers of the number of plies, corresponding cathode have the identical number of plies, correspond to negative electricity
Extremely wide and height all standing is more than anode, battery core unit number 5.
Embodiment 3
The present embodiment and raw material used by embodiment 1, production stage, detection method are essentially identical, unique difference
Place, this example provide thickness 100um, have charge level product to be 10cm2, and 8 layers of the number of plies, corresponding cathode have the identical number of plies, correspond to negative electricity
Extremely wide and height all standing is more than anode, battery core unit number 7.
Embodiment 4
The present embodiment and raw material used by embodiment 1, production stage, detection method are essentially identical, unique difference
Place, this example provide thickness 100um, have charge level product to be 10cm2, and 8 layers of the number of plies, corresponding cathode have the identical number of plies, correspond to negative electricity
Extremely wide and height all standing is more than anode, battery core unit number 9.
Embodiment 5
The present embodiment and raw material used by embodiment 1, production stage, detection method are essentially identical, unique difference
Place, this example provide thickness 100um, have charge level product to be 10cm2, and 8 layers of the number of plies, corresponding cathode have the identical number of plies, correspond to negative electricity
Extremely wide and height all standing is more than anode, battery core unit number 11.
Table 1
As shown in Table 1, normal using the lithium ion battery and thickness measurement of invention preparation, electrode fabrication provided by the invention
Mode and all great operability use of battery appearance and practical application.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, any ripe
Professional and technical personnel is known, without departing from the scope of the present invention, according to the technical essence of the invention, to above real
Apply any simple modification, equivalent replacement and improvement etc. made by example, still fall within technical solution of the present invention protection domain it
It is interior.
Claims (9)
1. a kind of flexible lithium ion battery, it is characterised in that：Including soft shell, positive and negative electrode is filled in the soft shell
Piece；The positive and negative plate is punched out into positive and negative electrode blade unit using punching cutter, by sky between the positive and negative electrode blade unit
Foil connects, and positive and negative electrode top draws encapsulation there are lug and carries out charge and discharge, and the positive and negative electrode blade unit lamination assembling is at battery
Core packet；The battery packet is positioned in molding flexible shell, is then packaged to shell.
2. flexible lithium ion battery according to claim 1, it is characterised in that：The outer housing is flexible shell, using packet
Containing PP, PE, PET, nylon and with the flexible material of metal layer.
3. flexible lithium ion battery according to claim 1, it is characterised in that：The positive and negative electrode electrode is conventional lithium
Electrode slice made from ion battery material, by being punched into pattern in flakes.
4. flexible lithium ion battery according to claim 1, it is characterised in that：The positive and negative electrode combination is lamination
Structure, the diaphragm form an entirety with anode.
5. flexible lithium ion battery according to claim 4, it is characterised in that：The diaphragm is adopted as PP or PE or mixing
Matrix, in the coat that membrane surface is coated with PAA or PVDF or PAA, the mixture of PVDF and ceramic powder is formed.
6. flexible lithium ion battery according to claim 1, it is characterised in that：It is rectangular that hull shape shape is rushed in the shell molding
Disjunctor rushes shell.
7. flexible lithium ion battery according to claim 1：A in the positive plate is that electrode width 10-50mm, b are
Electrode spacing 4-10mm, c are electrode length 10-50mm, positive-pole base material thickness 10um~25um.
8. flexible lithium ion battery according to claim 1：D in the negative plate is that electrode width 10-50mm, e are
Electrode spacing 4-10mm, f are electrode length 10-50mm, base material of cathode thickness 6um~15um.
9. flexible lithium ion battery according to claim 1：Battery size is as follows, and g is battery core width 6-70mm, and h is electricity
Core body width is 4-60mm, and I is that battery core cell width is 6-50mm, and J is that battery core cell spacing 2~8mm, M encapsulate for battery core
Width is 3~8mm, and K is 30~300mm of battery core height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817927.2A CN108598559A (en) | 2018-07-24 | 2018-07-24 | a kind of flexible lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817927.2A CN108598559A (en) | 2018-07-24 | 2018-07-24 | a kind of flexible lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108598559A true CN108598559A (en) | 2018-09-28 |
Family
ID=63618258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810817927.2A Pending CN108598559A (en) | 2018-07-24 | 2018-07-24 | a kind of flexible lithium ion battery |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449493A (en) * | 2018-11-02 | 2019-03-08 | 深圳市浩然电池有限公司 | A kind of flexible wearable lithium ion battery |
| CN110277584A (en) * | 2019-06-24 | 2019-09-24 | 湖南聚锂能源科技有限公司 | A kind of production technology and rotary disc type device of laminated batteries |
| WO2020025067A1 (en) * | 2018-08-03 | 2020-02-06 | 中兴通讯股份有限公司 | Foldable battery and manufacturing method therefor |
| CN112751143A (en) * | 2019-10-31 | 2021-05-04 | Oppo广东移动通信有限公司 | Electricity core subassembly and electronic equipment |
| CN113258175A (en) * | 2021-04-28 | 2021-08-13 | 山东金品能源有限公司 | Battery energy storage module |
| CN113794010A (en) * | 2021-09-09 | 2021-12-14 | 嘉兴极展科技有限公司 | Flexible battery pack of stretching |
| US20220011817A1 (en) * | 2018-12-17 | 2022-01-13 | Samsung Electronics Co., Ltd. | Foldable battery, and electronic device including same |
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| CN103928715A (en) * | 2014-04-25 | 2014-07-16 | 广西师范大学 | Battery cell of flexible laminated lithium ion battery, manufacturing method of battery cell as well as battery |
| CN104466229A (en) * | 2013-09-25 | 2015-03-25 | 华为技术有限公司 | Flexible lithium secondary battery and preparation method thereof |
| CN208690415U (en) * | 2018-07-24 | 2019-04-02 | 安普瑞斯（无锡）有限公司 | A kind of flexible lithium ion battery |
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2018
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Patent Citations (3)
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| CN104466229A (en) * | 2013-09-25 | 2015-03-25 | 华为技术有限公司 | Flexible lithium secondary battery and preparation method thereof |
| CN103928715A (en) * | 2014-04-25 | 2014-07-16 | 广西师范大学 | Battery cell of flexible laminated lithium ion battery, manufacturing method of battery cell as well as battery |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020025067A1 (en) * | 2018-08-03 | 2020-02-06 | 中兴通讯股份有限公司 | Foldable battery and manufacturing method therefor |
| CN110797565A (en) * | 2018-08-03 | 2020-02-14 | 中兴通讯股份有限公司 | Foldable battery and preparation method thereof |
| CN109449493A (en) * | 2018-11-02 | 2019-03-08 | 深圳市浩然电池有限公司 | A kind of flexible wearable lithium ion battery |
| US20220011817A1 (en) * | 2018-12-17 | 2022-01-13 | Samsung Electronics Co., Ltd. | Foldable battery, and electronic device including same |
| CN110277584A (en) * | 2019-06-24 | 2019-09-24 | 湖南聚锂能源科技有限公司 | A kind of production technology and rotary disc type device of laminated batteries |
| CN110277584B (en) * | 2019-06-24 | 2022-02-01 | 湖南聚锂能源科技有限公司 | Rotating disc type device for producing laminated batteries |
| CN112751143A (en) * | 2019-10-31 | 2021-05-04 | Oppo广东移动通信有限公司 | Electricity core subassembly and electronic equipment |
| CN113258175A (en) * | 2021-04-28 | 2021-08-13 | 山东金品能源有限公司 | Battery energy storage module |
| CN113258175B (en) * | 2021-04-28 | 2023-06-16 | 山东金品能源有限公司 | Battery energy storage module |
| CN113794010A (en) * | 2021-09-09 | 2021-12-14 | 嘉兴极展科技有限公司 | Flexible battery pack of stretching |
| CN113794010B (en) * | 2021-09-09 | 2023-09-19 | 嘉兴极展科技有限公司 | Flexible stretchable battery pack |
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