CN108417897A - A kind of high temp resistance lithium ion cell and preparation method thereof - Google Patents
A kind of high temp resistance lithium ion cell and preparation method thereof Download PDFInfo
- Publication number
- CN108417897A CN108417897A CN201810063282.8A CN201810063282A CN108417897A CN 108417897 A CN108417897 A CN 108417897A CN 201810063282 A CN201810063282 A CN 201810063282A CN 108417897 A CN108417897 A CN 108417897A
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- lithium ion
- battery core
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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
- H01M10/058—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
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to technical field of lithium ion, more particularly, to a kind of high temp resistance lithium ion cell and preparation method thereof；This method comprises the following steps：Protective film on the battery core surface for carrying out partial volume test is torn；Battery core surface is cleaned, battery core surface no-sundries are made；Compound film sheet is die-cut to compound film sheet identical with battery core size；Compound film sheet is pasted onto on battery core surface, soft silica gel rod is used in combination to compress.The present invention also provides a kind of high temp resistance lithium ion cell, the lithium ion battery is made of to use above-mentioned preparation method；The lithium ion battery includes battery core and the compound film sheet for being bonded in battery core surface, and the compound film sheet includes thermal isolation film and heat dissipation film.High temp resistance lithium ion cell provided by the invention and preparation method thereof can improve the high temperature resistance of lithium ion battery under the premise of not changing electrolyte structure, extend the service life of lithium ion battery, keep the use scope of battery more extensive.
Description
Technical field
The invention belongs to technical field of lithium ion, more particularly, to a kind of high temp resistance lithium ion cell and its preparation side
Method.
Background technology
Lithium ion battery is the secondary electricity that a kind of energy density is high, reliability is high, processing performance is good and environmental-protecting performance is excellent
Pond has been widely used in all kinds of portable electronic devices.Existing lithium ion battery includes the anode for being overlapped mutually winding
Piece, diaphragm, negative plate and electrolyte, diaphragm are interval between adjacent positive and negative plate so that positive/negative plate to insulate, are used for simultaneously
Keep electrolyte, outer layer laminated aluminum film.In preparation process, positive and negative anodes are prepared into slurry first, then be respectively coated with
On aluminium foil and copper foil, pole piece is made, naked battery core will be made by the technique of lamination or winding, battery core is packaged in aluminum plastic film
In, fluid injection is melted into, and partial volume is prepared into battery.
And it is more and more extensive with the application field of battery, then being required for the use environment of battery also more and more severe
It carves, existing lithium ion battery cannot carry out prolonged because being influenced by electrolyte under the hot environment more than 80 DEG C
It shelves, once shelving overlong time, electrolyte will decompose under high temperature environment, and eventually leading to battery cannot use；So this
The place for needing to use battery under the high temperature conditions for some is resulted in, satisfaction is unable to get.
It is all the electrolyte structure by changing inside battery to solve the heat safe mode of lithium ion battery currently on the market,
Battery is set to bear hot environment, but lithium ion battery, but because of the change of electrolyte structure, performance declines to a great extent, serious shadow
Ring the service life of battery.
Invention content
In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a kind of high temp resistance lithium ion cell and its systems
Preparation Method can improve the high temperature resistance of lithium ion battery under the premise of not changing electrolyte structure, extend lithium ion battery
Service life.
To achieve the above object, the technical scheme is that a kind of preparation method of high temp resistance lithium ion cell, the party
Method includes the following steps：
Step 1：Protective film on the battery core surface for carrying out partial volume test is torn；
Step 2：Battery core surface is cleaned using non-dust cloth cooperation alcohol, makes battery core surface no-sundries；
Step 3：Thermal isolation film is die-cut to the compound film sheet of heat dissipation film identical as battery core size；
Step 4：Compound film sheet is pasted onto on battery core surface, soft silica gel rod is used in combination to compress.
Further, the compound film sheet includes thermal isolation film and heat dissipation film, and the thermal isolation film is located at close to battery core surface
Side, the heat dissipation film are located remotely from the side on battery core surface.
Further, thermal isolation film is a kind of high-specific surface area, the Gao Kong constituted as colloidal particles skeleton using silica
Gap rate, low-density, the nano-porous films of extremely low thermal conductivity.
Further, the thermal isolation film is equipped with binder close to the one side of battery core.
Further, the binder is any one in synthetic rubber, acrylic resin, hydroxylated cellulose or guar gum
Kind.
Further, used temperature is 35-60 DEG C when the soft silica gel roll-in is tight, pressure 10-15Kg.
The present invention also provides a kind of high temp resistance lithium ion cell, the lithium ion battery is to use above-mentioned preparation method system
At；The lithium ion battery includes battery core and the compound film sheet for being bonded in battery core surface, the compound film sheet include thermal isolation film and
Heat dissipation film, the thermal isolation film are located at close to the side on battery core surface, and the heat dissipation film is located remotely from the side on battery core surface.
Further, the thickness of the compound film sheet is 25-40 μm.
Compared with prior art, beneficial effects of the present invention：
(1) high temp resistance lithium ion cell provided by the invention and preparation method thereof can carry under the premise of not changing electrolyte structure
The high temperature resistance of high-lithium ion battery extends the service life of lithium ion battery, keeps the use scope of battery more extensive；
(2) high temp resistance lithium ion cell provided by the invention can store certain time without influencing it in the environment of 90-150 DEG C
Normal performance；
(3) 10-20% can be improved in high temp resistance lithium ion cell provided by the invention battery core service life at same temperature, and capacity plays
Improve 10%.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
All other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention provides a kind of preparation method of high temp resistance lithium ion cell, and this method comprises the following steps：
Step 1：Protective film on the battery core surface for carrying out partial volume test is torn；
Step 2：Battery core surface is cleaned using non-dust cloth cooperation alcohol, makes battery core surface no-sundries；
Step 3：Thermal isolation film is die-cut to the compound film sheet of heat dissipation film identical as battery core size；
Step 4：Compound film sheet is pasted onto on battery core surface, soft silica gel rod is used in combination to compress.
High temp resistance lithium ion cell provided by the invention and preparation method thereof can be under the premise of not changing electrolyte structure
The high temperature resistance for improving lithium ion battery, extends the service life of lithium ion battery, keeps the use scope of battery more extensive.
As one embodiment of the present invention, the compound film sheet of thermal isolation film and heat dissipation film in step 3 is die-cut to two
Piece, decibel is identical as battery core positive and negative size, and two panels compound film sheet is respectively adhered on to the positive and negative of battery core, then uses soft silica gel
Rod compresses.
Battery core in the present invention is that can carry out the lithium-ion electric core of charge and discharge, and compound film sheet is folded by thermal isolation film and heat dissipation film
It closes, the thermal isolation film is to be made by the aeroge of skeleton of silica, has good heat insulation；The heat dissipation film is
Film with heat sinking function.The thickness of the compound film sheet is 25-40 μm.
As one embodiment of the present invention, the compound film sheet includes thermal isolation film and heat dissipation film, the thermal isolation film position
In the side close to battery core surface, the heat dissipation film is located remotely from the side on battery core surface.
As another embodiment of the invention, the compound film sheet includes thermal isolation film and heat dissipation film, two layers of thermal isolation film
One layer of heat dissipation film of intermediate sandwiched, the thermal isolation film of wherein side are close to battery core surface.
Further, thermal isolation film is a kind of high-specific surface area, the Gao Kong constituted as colloidal particles skeleton using silica
Gap rate, low-density, the nano-porous films of extremely low thermal conductivity.Thermal isolation film has layer structure, is made of multilayer insulation unit
It is combined, each layer insulating unit is arranged in the same direction；Every layer of insulating unit is made of substrate layer and aerogel layer；The substrate layer
It is polyimides or carbon-fiber film, the aerogel layer is porous silica silica aerogel, is also had between adjacent insulating unit
There is a high temperature glue-line.It can make conduct heat between battery by thermal isolation film, even if some battery, which goes wrong, generates amount of heat,
Neighbouring battery will not be had an impact.Thermal isolation film can also be the heat safe film of other materials.
Heat dissipation film is a kind of completely new heat conduction and heat radiation material, there is unique crystal grain to be orientated, in both directions uniform heat conduction,
It is laminar structured to be well adapted for any surface, shield heat source.
Further, the thermal isolation film is equipped with binder close to the one side of battery core.Thermal isolation film, can be very per se with bonding agent
The good tow sides for being bonded in battery.Binder can be such that thermal isolation film and battery core fixes, not easily to fall off, ensure battery core with this
Heat insulation it is reliable.
Further, the binder is any one in synthetic rubber, acrylic resin, hydroxylated cellulose or guar gum
Kind.
Further, used temperature is 35-60 DEG C when the soft silica gel roll-in is tight, pressure 10-15Kg, using one
Compound film sheet is pressed in battery core by fixed temperature, can improve the viscosity of binder, when compound film sheet being made to be sticked to battery core surface more
It is firm；The viscous bubble between battery core surface of compound film sheet can be driven away using certain pressure when soft silica gel roll-in is tight, made multiple
Closing diaphragm closer can be sticked to battery core surface；When compressing, it can first start roll-in three clockwise along battery core length direction and come
It returns, another mistake hour hands start roll-in three back and forth, then battery core first starts roll-in three back and forth clockwise in the width direction, then counterclockwise
Start roll-in three back and forth, so that compound film sheet is preferably bonded with battery core surface seamless, ensures that battery core is wider with this
Heat insulation.
As another embodiment of the invention, the compound film sheet includes thermal isolation film and heat dissipation film, the heat dissipation film
Positioned at the side close to battery core surface, the thermal isolation film is located remotely from the side on battery core surface.The heat dissipation film is close to battery core
It is equipped with binder on one side.
As another embodiment of the invention, the compound film sheet includes thermal isolation film and heat dissipation film, two layers of heat dissipation film
One layer of thermal isolation film of intermediate sandwiched, the heat dissipation film of wherein side are close to battery core surface.The heat dissipation film is equipped with close to the one side of battery core
Binder.
The present invention also provides a kind of high temp resistance lithium ion cell, the high temp resistance lithium ion cell is to use above-mentioned preparation side
Method is made；The lithium ion battery includes battery core and the compound film sheet for being bonded in battery core surface, and the compound film sheet includes heat-insulated
Film and heat dissipation film, the thermal isolation film are located at close to the side on battery core surface, and the heat dissipation film is located remotely from the side on battery core surface.
Further, the thickness of the compound film sheet is 25-40 μm.
Further, the thermal isolation film be a kind of high-specific surface area being made of for colloidal particles skeleton silica,
High porosity, low-density, the nano-porous films of extremely low thermal conductivity, soft surface, and there is good mechanical performance；The heat dissipation
Film is a kind of completely new heat conduction and heat radiation material, and there is unique crystal grain to be orientated, uniform heat conduction in both directions, it is laminar structured can
It is well adapted for any surface, shields heat source.
The energy high temp resistance lithium ion cell of the present invention makes battery core shelve 60min charge-discharge performances at a high temperature of 90-130 DEG C
It is unaffected；10-20% can be improved in the battery core service life at same temperature, and capacity, which plays, improves 10%；Also make the application of lithium ion battery
It is more rich.The battery core is that can carry out the lithium-ion electric core of charge and discharge, and the thermal isolation film is using silica as the aeroge of skeleton
It makes, there is good heat insulation；The heat dissipation film is the film with heat conduction and heat radiation function；Make lithium ion battery be resistant to compared with
High-temperature.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of preparation method of high temp resistance lithium ion cell, which is characterized in that this method comprises the following steps：
Step 1：Protective film on the battery core surface for carrying out partial volume test is torn；
Step 2：Battery core surface is cleaned using non-dust cloth cooperation alcohol, makes battery core surface no-sundries；
Step 3：Thermal isolation film is die-cut to the compound film sheet of heat dissipation film identical as battery core size；
Step 4：Compound film sheet is pasted onto on battery core surface, soft silica gel rod is used in combination to compress.
2. a kind of preparation method of high temp resistance lithium ion cell as described in claim 1, it is characterised in that：The compound film sheet
Including thermal isolation film and heat dissipation film, the thermal isolation film is located at close to the side on battery core surface, and the heat dissipation film is located remotely from battery core table
The side in face.
3. a kind of preparation method of high temp resistance lithium ion cell as claimed in claim 2, it is characterised in that：The thermal isolation film is
A kind of high-specific surface area for being constituted as colloidal particles skeleton using silica, high porosity, low-density, extremely low thermal conductivity are received
Rice perforated membrane.
4. a kind of preparation method of high temp resistance lithium ion cell as claimed in claim 2, it is characterised in that：The thermal isolation film is leaned on
The one side of nearly battery core is equipped with binder.
5. a kind of preparation method of high temp resistance lithium ion cell as claimed in claim 4, it is characterised in that：The binder is
Any one in synthetic rubber, acrylic resin, hydroxylated cellulose or guar gum.
6. a kind of preparation method of high temp resistance lithium ion cell as described in claim 1, it is characterised in that：The soft silica gel roller
Used temperature is 35-60 DEG C when compression, pressure 10-15Kg.
7. a kind of high temp resistance lithium ion cell, it is characterised in that：The lithium ion battery is using any one of claim 1-6 institute
The preparation method stated is made, and the lithium ion battery includes battery core and the compound film sheet for being bonded in battery core surface, the composite membrane
Piece includes thermal isolation film and heat dissipation film, and the thermal isolation film is located at close to the side on battery core surface, and the heat dissipation film is located remotely from battery core
The side on surface.
8. a kind of high temp resistance lithium ion cell as claimed in claim 7, it is characterised in that：The thickness of the compound film sheet is
25-40μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810063282.8A CN108417897A (en) | 2018-01-23 | 2018-01-23 | A kind of high temp resistance lithium ion cell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810063282.8A CN108417897A (en) | 2018-01-23 | 2018-01-23 | A kind of high temp resistance lithium ion cell and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108417897A true CN108417897A (en) | 2018-08-17 |
Family
ID=63126139
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810063282.8A Pending CN108417897A (en) | 2018-01-23 | 2018-01-23 | A kind of high temp resistance lithium ion cell and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4362172A1 (en) * | 2022-10-27 | 2024-05-01 | CALB Group Co., Ltd. | Battery assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205004375U (en) * | 2015-08-13 | 2016-01-27 | 上海航天电源技术有限责任公司 | Lithium ion battery of inside thermal insulation design |
| CN105742566A (en) * | 2016-04-11 | 2016-07-06 | 宁德时代新能源科技股份有限公司 | Electrode plate and lithium ion battery |
| CN206163536U (en) * | 2016-11-21 | 2017-05-10 | 山东魔方新能源科技有限公司 | Battery box |
| CN106953033A (en) * | 2017-04-07 | 2017-07-14 | 徐州腾飞工程塑料有限公司 | It is a kind of not only to have radiated but also cold-resistant lithium battery group packaging material |
-
2018
- 2018-01-23 CN CN201810063282.8A patent/CN108417897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205004375U (en) * | 2015-08-13 | 2016-01-27 | 上海航天电源技术有限责任公司 | Lithium ion battery of inside thermal insulation design |
| CN105742566A (en) * | 2016-04-11 | 2016-07-06 | 宁德时代新能源科技股份有限公司 | Electrode plate and lithium ion battery |
| CN206163536U (en) * | 2016-11-21 | 2017-05-10 | 山东魔方新能源科技有限公司 | Battery box |
| CN106953033A (en) * | 2017-04-07 | 2017-07-14 | 徐州腾飞工程塑料有限公司 | It is a kind of not only to have radiated but also cold-resistant lithium battery group packaging material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4362172A1 (en) * | 2022-10-27 | 2024-05-01 | CALB Group Co., Ltd. | Battery assembly |
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Application publication date: 20180817 |