CN109256593A - Notebook Battery built in a kind of high security high-energy density - Google Patents
Notebook Battery built in a kind of high security high-energy density Download PDFInfo
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- CN109256593A CN109256593A CN201811055924.6A CN201811055924A CN109256593A CN 109256593 A CN109256593 A CN 109256593A CN 201811055924 A CN201811055924 A CN 201811055924A CN 109256593 A CN109256593 A CN 109256593A
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- Prior art keywords
- battery
- energy density
- notebook
- built
- notebook battery
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Classifications
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery 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
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/131—Primary casings, jackets or wrappings of a single cell or a single battery characterised by physical properties, e.g. gas-permeability or size
-
- 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
Abstract
The invention discloses Notebook Batteries built in a kind of high security high-energy density, including power supervisor, high polymer glue frame and internal battery；The high polymer glue frame is made of the polycarbonate of 25-50% and the polyacrylonitrile of 50-75%；The anode sizing agent of the internal battery contains the cobalt acid lithium of 95-96wt%, and negative electrode slurry contains the graphite of 93.0-96.0wt%.Inventive polymers lithium-ion electric core has ultra-thin function with a thickness of 2.5mm, Notebook Battery with a thickness of 2.8mm；Battery core energy density reaches 680Wh/L, improves 10%-20% than general commercial Notebook Battery energy density；The high-performance electric source manager used can monitor the voltage, electric current and temperature of every piece of lithium-ion electric core, ensure that the safe handling of Notebook Battery；The high polymer glue frame that uses while there is high-intensitive hardness and flexibility, ensure that Notebook Battery has the performance of shockproof drop resistant, while its fire-protection rating is 0 grade of highest level.
Description
Technical field
The invention belongs to polymer Li-ion battery fields, more particularly, in a kind of high security high-energy density
Set Notebook Battery.
Background technique
With the development of mobile calculation technique and wireless communication technique, handhold mobile terminal equipment acquires in mobile data,
It is more and more applied in the fields such as transmission, processing and personal information service.Its power supply mode of its moveable characteristic requirements
Based on battery.Lithium battery has that small in size, energy density is high, memory-less effect, cycle life are high, high-voltage battery and puts certainly
The electric low advantage of rate, has become the preferred battery of hand-held terminal device in recent years.
Meanwhile in order to meet complicated application environment requirement, handhold mobile terminal equipment should also have good temperature and humidity,
Anti-interference, antiknock quality.Especially for consumer application, cost be also mobile terminal device design in important consideration because
Element.The demand of characteristic and above-mentioned application environment for lithium battery, proposes the design of handhold mobile terminal equipment charging circuit
Higher requirement is gone out.
Currently, mainstream is 18650 cylindrical lithium ion batteries in the market, with small in size, light-weight, capacity
Greatly, the advantages that memory effect is low, the charging time is short, so largely being used by businessman.But the pen of 18650 cylindrical batteries composition
It is immutable to remember that this computer battery has the shortcomings that: cell thickness is more than that 20mm and safety are bad.
Summary of the invention
In view of the deficiency of the prior art, the present invention provides notebooks built in a kind of high security high-energy density
Battery.
Above-mentioned purpose of the invention is achieved by the following technical programs.
Notebook Battery built in a kind of high security high-energy density, including power supervisor, high polymer glue frame and built-in
Battery；The high polymer glue frame is made of the polycarbonate of 25-50% and the polyacrylonitrile of 50-75%；The internal battery
Anode sizing agent contains the cobalt acid lithium of 95-96wt%, and negative electrode slurry contains the graphite of 93.0-96.0wt%.
Preferably, the anode sizing agent also includes CNTs 0.7wt%-1.2wt%, carbon black CB
1.0wt%-2.0wt%, PVDF 1.5wt%-2.5wt%, NMP 0.25wt%-0.35wt%；The cathode slurry
Material also includes carbon black CB 1.0wt%-2.0wt%, CMC 1.0wt%-2.5wt%, SBR 2.0wt%-3.0wt%.
Preferably, the cobalt acid lithium is D50=15.0-20.0 μm of monocrystalline bulky grain of partial size；Tap density:
2.8-3.0g/cc。
Preferably, the graphite is D50=17.0-22.0 μm of partial size；Tap density: 1.0-1.15g/cc.
Preferably, the anode sizing agent, negative electrode slurry are respectively coated, after roll-in formation positive and negative plate, by positive/negative plate
Winding, core toast 2.0-4.0h with the pressure concora crush of 0.45-0.80MPa and in 70 DEG C of -80 DEG C of environment；Then through battery
At, storage to get to the built-in Notebook Battery.
Preferably, the Battery formation are as follows: pressurizeed with 0.4-0.6MPa to battery, and keep institute in battery forming process
State pressure；Formation process: a.0.03-0.05C constant-current charge to 3.70V-3.80V；B.0.08-0.12C constant-current charge is to 3.95-
4.05V。
Preferably, the condition of storage is to store 6-10h in 70-85 DEG C of environment.
Preferably, the positive plate with a thickness of 0.115-0.125mm, the negative electrode tab with a thickness of
0.128-0.135mm。
Preferably, the plus plate current-collecting body is the aluminium foil of 12-15 μ m thick, and the negative current collector is 6-9 μ m thick
Copper foil.
Compared with prior art, the beneficial effects of the invention are that:
(1) Inventive polymers lithium-ion electric core has ultra-thin function with a thickness of 2.5mm, Notebook Battery with a thickness of 2.8mm
Energy.
(2) Inventive polymers lithium-ion electric core energy density reaches 680Wh/L, than general commercial Notebook Battery energy
Density improves 10%-20%.
(3) the high-performance electric source manager that Notebook Battery uses in the present invention can monitor the electricity of every piece of lithium-ion electric core
Pressure, electric current and temperature, ensure that the safe handling of Notebook Battery.
(4) Notebook Battery of the present invention uses high polymer glue frame while there is high-intensitive hardness and flexibility, guarantees
Notebook Battery has the performance of shockproof drop resistant, while its fire-protection rating is 0 grade of highest level.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.Unless stated otherwise, the present invention uses reagent, method and apparatus is the art conventional reagents, method
And equipment.
It has been investigated that Notebook Battery built in a kind of high security high-energy density, including power supervisor, high polymer
Glue frame and internal battery；The high polymer glue frame is made of the polycarbonate of 25-50% and the polyacrylonitrile of 50-75%；It is described
The anode sizing agent of internal battery contains the cobalt acid lithium of 95-96wt%, and negative electrode slurry contains the graphite of 93.0-96.0wt%.
The method of the present invention is further described by taking specific implementation condition as an example below.
Embodiment 1
Power supervisor described in the present embodiment uses the high-performance electric source manager of BQ3060 type；The high polymer glue frame by
25% polycarbonate and 75% polyacrylonitrile are mixed.
The anode sizing agent is made of following each component: cobalt acid lithium 95.0wt%, CNTs 1.2wt%, carbon black
CB1.5wt%, PVDF 2wt%, NMP 0.30wt%；The cobalt acid lithium is D50=15.0-20.0 μm of monocrystalline bulky grain of partial size；
Tap density: 2.8-3.0g/cc.
The negative electrode slurry is made of following each component: graphite 96.0wt%, carbon black CB 1.0wt%, CMC1.0wt%,
SBR 2.0wt%；The graphite is D50=17.0-22.0 μm of partial size；Tap density: 1.0-1.15g/cc.
By the anode sizing agent, negative electrode slurry be respectively coated in 12-15 μ m thick aluminium foil and 6-9 μ m thick copper foil,
Roll-in forms positive and negative plate, the positive plate with a thickness of 0.115-0.125mm, the negative electrode tab with a thickness of 0.128-
0.135mm；Positive/negative plate is wound, core is toasted with the pressure concora crush of 0.45-0.80MPa and in 70 DEG C of -80 DEG C of environment
2.0-4.0h；Then through Battery formation, storage to get to the built-in Notebook Battery.
The Battery formation are as follows: pressurizeed with 0.4-0.6MPa to battery, and keep the pressure in battery forming process；
Formation process: a.0.03-0.05C constant-current charge to 3.70V-3.80V；B.0.08-0.12C constant-current charge is to 3.95-4.05V.
The condition of storage is to store 6-10h in 70-85 DEG C of environment.
The built-in Notebook Battery of the present embodiment with a thickness of 2.8mm, there is ultra-thin function, battery core energy density reaches
680Wh/L。
Embodiment 2
The present embodiment and the difference of embodiment 1 are only that: the high polymer glue frame is by 50% polycarbonate and 50%
Polyacrylonitrile is mixed.The anode sizing agent is made of following each component: cobalt acid lithium 96.0wt%, CNTs 0.7wt%, carbon
Black CB 1.0wt%, PVDF 1.95wt%, NMP 0.35wt%；The negative electrode slurry is made of following each component: graphite
93.0wt%, carbon black CB 2.0wt%, CMC 2.5wt%, SBR 2.5wt%.
The built-in Notebook Battery of the present embodiment with a thickness of 2.8mm, there is ultra-thin function, battery core energy density reaches
680Wh/L。
Embodiment 3
The present embodiment and the difference of embodiment 1 are only that: the high polymer glue frame is by 40% polycarbonate and 60%
Polyacrylonitrile is mixed.The anode sizing agent is made of following each component: cobalt acid lithium 95.25wt%, CNTs 1wt%, carbon black
CB 2.0wt%, PVDF 1.5wt%, NMP 0.25wt%；The negative electrode slurry is made of following each component: graphite
93.5wt%, carbon black CB 1.5wt%, CMC 2wt%, SBR 3.0wt%.
The built-in Notebook Battery of the present embodiment with a thickness of 2.8mm, there is ultra-thin function, battery core energy density reaches
680Wh/L。
Comparative example 1
The difference of this comparative example and embodiment 1 is only that: the high polymer glue frame is by 55% polycarbonate and 45%
Polyacrylonitrile composition.
It finds after tested, the built-in notebook battery security is bad, heat resistance, weatherability, ageing resistance, mouldability
It is poor compared with embodiment 1；And the glue frame of embodiment 1 its shockproof drop resistant performance, fire protecting performance are more excellent.
Comparative example 2
The difference of this comparative example and embodiment 1 is only that: anode sizing agent composition are as follows: cobalt acid lithium 94.0wt%,
CNTs2.9wt%, carbon black CB 0.8wt%, PVDF 2wt%, NMP 0.30wt%；The negative electrode slurry composition are as follows: graphite
91wt%, carbon black CB 2.5wt%, CMC 3wt%, SBR 3.5wt%.
It finds after tested, the battery core energy density of the built-in Notebook Battery only 610Wh/L or so, substantially less than embodiment
1。
Implementation of the invention is described in detail above, it is still, specific thin during present invention is not limited to the embodiments described above
Section within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, these simple changes
Type all belongs to the scope of protection of the present invention.
Claims (8)
1. Notebook Battery built in a kind of high security high-energy density, which is characterized in that including power supervisor, high polymer glue
Frame and internal battery；The high polymer glue frame is made of the polycarbonate of 25-50% and the polyacrylonitrile of 50-75%；It is described built-in
The anode sizing agent of battery contains the cobalt acid lithium of 95-96 wt%, and negative electrode slurry contains the graphite of 93.0-96.0 wt%.
2. Notebook Battery built in a kind of high security high-energy density according to claim 1, which is characterized in that described
Anode sizing agent also includes CNTs 0.7wt%-1.2wt%, carbon black CB 1.0wt%-2.0wt%, PVDF 1.5wt%-2.5wt%, NMP
0.25wt%-0.35wt%；The negative electrode slurry also includes carbon black CB 1.0wt%-2.0wt%, CMC 1.0wt%-2.5wt%, SBR
2.0wt%-3.0wt%。
3. Notebook Battery built in a kind of high security high-energy density according to claim 1, which is characterized in that described
Cobalt acid lithium is D50=15.0-20.0 μm of monocrystalline bulky grain of partial size；Tap density: 2.8-3.0g/cc.
4. Notebook Battery built in a kind of high security high-energy density according to claim 1, which is characterized in that described
Graphite is D50=17.0-22.0 μm of partial size；Tap density: 1.0-1.15 g/cc.
5. Notebook Battery built in a kind of high security high-energy density according to claim 1, which is characterized in that by institute
State anode sizing agent, negative electrode slurry is respectively coated, roll-in formed positive and negative plate after, positive/negative plate is wound, core is with 0.45-
The pressure concora crush of 0.80 MPa simultaneously toasts 2.0-4.0h in 70 DEG C of -80 DEG C of environment；Then through Battery formation, storage to get arriving
The built-in Notebook Battery.
6. Notebook Battery built in a kind of high security high-energy density according to claim 5, which is characterized in that described
Battery formation are as follows: pressurizeed with 0.4-0.6 MPa to battery, and keep the pressure in battery forming process；Formation process: a.
0.03-0.05C constant-current charge is to 3.70V-3.80V；B. 0.08-0.12C constant-current charge is to 3.95-4.05 V.
7. Notebook Battery built in a kind of high security high-energy density according to claim 5, which is characterized in that described
Condition of storage is to store 6-10h in 70-85 DEG C of environment.
8. Notebook Battery built in a kind of high security high-energy density according to claim 5, which is characterized in that described
Positive plate with a thickness of 0.115-0.125 mm, the negative electrode tab with a thickness of 0.128-0.135 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055924.6A CN109256593A (en) | 2018-09-11 | 2018-09-11 | Notebook Battery built in a kind of high security high-energy density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055924.6A CN109256593A (en) | 2018-09-11 | 2018-09-11 | Notebook Battery built in a kind of high security high-energy density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109256593A true CN109256593A (en) | 2019-01-22 |
Family
ID=65048086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055924.6A Pending CN109256593A (en) | 2018-09-11 | 2018-09-11 | Notebook Battery built in a kind of high security high-energy density |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060267547A1 (en) * | 2005-05-27 | 2006-11-30 | Mark Godovich | Replacement battery pack with built-in charging circuitry and power connector, and AC adapter for reading charging status of replacement battery pack |
| CN102544586A (en) * | 2010-12-10 | 2012-07-04 | 深圳市比克电池有限公司 | Lithium ion battery preparation method and lithium ion battery |
| CN103579668A (en) * | 2013-11-22 | 2014-02-12 | 江苏风迅新能源科技有限公司 | High-voltage and high-energy density lithium ion battery and preparation method thereof |
| CN203838649U (en) * | 2014-01-27 | 2014-09-17 | 合肥联宝信息技术有限公司 | Built-in power supply for notebook computer or all-in-one machine |
| CN104124406A (en) * | 2013-04-29 | 2014-10-29 | 株式会社Lg化学 | Inner case for battery module aggregate included in battery pack for vehicle |
-
2018
- 2018-09-11 CN CN201811055924.6A patent/CN109256593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060267547A1 (en) * | 2005-05-27 | 2006-11-30 | Mark Godovich | Replacement battery pack with built-in charging circuitry and power connector, and AC adapter for reading charging status of replacement battery pack |
| CN102544586A (en) * | 2010-12-10 | 2012-07-04 | 深圳市比克电池有限公司 | Lithium ion battery preparation method and lithium ion battery |
| CN104124406A (en) * | 2013-04-29 | 2014-10-29 | 株式会社Lg化学 | Inner case for battery module aggregate included in battery pack for vehicle |
| CN103579668A (en) * | 2013-11-22 | 2014-02-12 | 江苏风迅新能源科技有限公司 | High-voltage and high-energy density lithium ion battery and preparation method thereof |
| CN203838649U (en) * | 2014-01-27 | 2014-09-17 | 合肥联宝信息技术有限公司 | Built-in power supply for notebook computer or all-in-one machine |
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Application publication date: 20190122 |