CN106450170A - Production method of low-cost and high-quality lithium-ion battery - Google Patents
Production method of low-cost and high-quality lithium-ion battery Download PDFInfo
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- CN106450170A CN106450170A CN201610934262.4A CN201610934262A CN106450170A CN 106450170 A CN106450170 A CN 106450170A CN 201610934262 A CN201610934262 A CN 201610934262A CN 106450170 A CN106450170 A CN 106450170A
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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 a production method of a low-cost and high-quality lithium-ion battery. The production method includes: mixing carbon micro-powder, binder and a conductive agent with the carbon micro-powder of surface-coating polymer to obtain a cathode material, coating a current collector with the cathode material, and baking, rolling and slitting to obtain a cathode piece; preparing a lithium iron phosphate precursor, a conductive agent, binder and a solvent into anode slurry, coating a current collector with the anode slurry, and drying and rolling to obtain an anode piece; using propionate as the raw material and secondary alcohol as the hydrogen source and solvent to prepare a solvent under the catalyzing of aluminum isopropoxide, and matching the solvent with lithium tetraborate to obtain electrolyte; arranging a membrane between the anode piece and the cathode piece, making the anode piece, the membrane and the cathode piece into a bare cell, encapsulating the bare cell into a battery shell, filling the electrolyte into the battery shell in a dry room, sealing the opening of the battery shell, heating and pressurizing, and performing formation and capacity grading to obtain the lithium-ion battery. The lithium-ion battery is high in discharge capacity and good in rate performance and cycle performance.
Description
Technical field：
The present invention relates to cell art, is specifically related to a kind of preparation side of low-cost and high-quality lithium ion battery
Method.
Background technology：
Along with a large amount of uses of economic globalization process and Fossil fuel, environmental pollution and energy starved problem are day by day
Prominent.In order to reduce pollution of the Fossil fuel using process, development wind, light, the electric sustainable renewable sources of energy and novel power battery
With high-efficiency energy-storage system, reasonable disposition and the electric adjustment of regenerative resource is realized, for the raising level of resources utilization, solve energy
Source crisis and environmental protection all have its own strategic significance.
It is excellent that lithium ion battery has the high and low self discharge of specific energy, good cycle, memory-less effect and environmental protection etc.
Point, is high efficient secondary battery most with prospects at present and chemical energy storage power supply with fastest developing speed.In recent years, lithium ion battery
Gradually strengthen in the application of aerospace field, the aviation such as Mars landing device, unmanned plane, earth orbital flight device, airline carriers of passengers
In spacecraft, the figure of lithium ion battery is seen everywhere.
For different application demand, lithium ion battery just develops towards diversification direction, mainly includes:Portable electronic products
Use lithium ion battery with high energy density；Have the lithium-ion-power cell of high-energy-density and high power density concurrently；Energy storage longevity
Life lithium ion battery.The requirement of this three aspects application can be met currently without any material simultaneously, how to have height
While energy density, have both the core that high power density and high cyclical stability are lithium ion battery material development.
Content of the invention：
It is an object of the invention to provide a kind of preparation method of low-cost and high-quality lithium ion battery, the method is simply easily grasped
Make, low for equipment requirements, preparation cost is low, and obtained discharge capacity of lithium ion battery height, high rate performance and good cycle,
Energy-conserving and environment-protective.
For achieving the above object, the present invention is employed the following technical solutions：
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
Micropowder, binding agent, conductive agent and Surface coating are had the micropowder mixing and stirring of polymer, prepared negative pole
Then negative material is coated on a current collector by material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, conductive agent, binding agent and solvent are configured to anode sizing agent, are then coated with collector
On, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Levulic acid esters raw material, secondary alcohol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave
Power, reaction temperature and response time, reaction is lowered the temperature through system air blast cooling after terminating, and takes out reactant mixture, separated system
Obtain gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
As the preferred of technique scheme, in step (1), the micropowder is native graphite, Delanium, carbon fibre
One or more mixing in dimension, CNT.
As the preferred of technique scheme, described binding agent is phenolic resin, polyvinyl alcohol, epoxy resin, polytetrafluoro
One or more mixing in ethylene, Kynoar, hydroxymethyl cellulose.
Used as the preferred of technique scheme, the conductive agent is acetylene black, one or two mixing in electrically conductive graphite.
As the preferred of technique scheme, in step (1), the polymer in the micropowder for being coated with polymer is
One or more in zinc-containing solid catalyst, polyalkylene oxides, polyalkyl acrylate, polyalkyl methacrylate
Mixing.
As the preferred of technique scheme, in step (3), the levulic acid esters are methyl ester levulinate, acetyl
One or more mixing in ethyl propionate, Butyl acetylpropanoate.
As the preferred of technique scheme, in step (3), the secondary alcohol is isopropanol, the one kind in 2- butanol.
As the preferred of technique scheme, in step (3), the secondary alcohol, the mass ratio of levulic acid esters raw material
For (8-25)：1.
As the preferred of technique scheme, in step (3), the quality of the aluminum isopropylate. and levulic acid esters raw material
Than for 1：(1-8).
As the preferred of technique scheme, in step (3), the reaction temperature is 130-170 DEG C, the response time
For 10-60min.
The invention has the advantages that：
(1) present invention is using micropowder as negative electrode active material, and add be coated with polymer micropowder composition negative
Pole material；Using ferric lithium phosphate precursor as positive active material, obtained lithium ion battery has higher energy density
And power density；
(2) present invention using cheap levulic acid esters is raw material, and using secondary alcohol as hydrogen source and solvent,
Using aluminum isopropylate. as the catalyst to preparing gamma-valerolactone, reaction condition is gentle, low for equipment requirements, safety economy；
(3) preparation method of the lithium ion battery that the present invention is provided is simple, it is easy to operate, no noxious substance in preparation process
Release, low cost, obtained discharge capacity of lithium ion battery height, high rate performance and good cycle, energy-conserving and environment-protective.
Specific embodiment：
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solution
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
Native graphite, phenolic resin, acetylene black and Surface coating are had the native graphite mixing and stirring of polymer, system
Negative material is obtained, then negative material is coated on a current collector, then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, acetylene black, phenolic resin and solvent are configured to anode sizing agent, are then coated with collector
On, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Methyl ester levulinate, isopropanol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power
For 300W, it is 10min with the response time that reaction temperature is 130 DEG C, and reaction is lowered the temperature through system air blast cooling after terminating, and takes out and reacts
Mixture, separated prepared gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
Wherein, the isopropanol, the mass ratio of methyl ester levulinate are 8：1, the matter of the aluminum isopropylate. and methyl ester levulinate raw material
Amount is than being 1：1；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
Embodiment 2
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
Delanium, polyvinyl alcohol, electrically conductive graphite and Surface coating are had the Delanium mixing and stirring of polymer,
Then negative material is coated on a current collector by prepared negative material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, electrically conductive graphite, polyethylene alcohol and solvent are configured to anode sizing agent, are then coated with afflux
On body, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Ethyl levulinate 2- butanol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power as
300W, it is 60min with the response time that reaction temperature is 170 DEG C, and reaction is lowered the temperature through system air blast cooling after terminating, and takes out to react and mixes
Compound, separated prepared gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；Its
In, the 2- butanol, the mass ratio of ethyl levulinate are 25：1, the aluminum isopropylate. with the mass ratio of ethyl levulinate is
1：8；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
Embodiment 3
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
Carbon fiber, epoxy resin, electrically conductive graphite and Surface coating are had the carbon fiber mixing and stirring of polymer, is obtained
Then negative material is coated on a current collector by negative material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, acetylene black, epoxy resin and solvent are configured to anode sizing agent, are then coated with collector
On, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Butyl acetylpropanoate, isopropanol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power
For 300W, it is 20min with the response time that reaction temperature is 140 DEG C, and reaction is lowered the temperature through system air blast cooling after terminating, and takes out and reacts
Mixture, separated prepared gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
Wherein, the isopropanol, the mass ratio of Butyl acetylpropanoate are 10：1, the mass ratio of the aluminum isopropylate. and Butyl acetylpropanoate
For 1：3；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
Embodiment 4
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
CNT, politef, acetylene black and Surface coating are had the CNT mixing and stirring of polymer,
Then negative material is coated on a current collector by prepared negative material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, electrically conductive graphite, Kynoar and solvent are configured to anode sizing agent, are then coated with collection
On fluid, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Methyl ester levulinate, 2- butanol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power
For 300W, it is 30min with the response time that reaction temperature is 150 DEG C, and reaction is lowered the temperature through system air blast cooling after terminating, and takes out and reacts
Mixture, separated prepared gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
Wherein, the 2- butanol, the mass ratio of methyl ester levulinate are 15：1, the mass ratio of the aluminum isopropylate. and methyl ester levulinate
For 1：5；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
Embodiment 5
A kind of preparation method of low-cost and high-quality lithium ion battery, comprises the following steps：
(1) preparation of negative plate
CNT, Kynoar, acetylene black and Surface coating are had the CNT mixing and stirring of polymer,
Then negative material is coated on a current collector by prepared negative material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, electrically conductive graphite, hydroxymethyl cellulose and solvent are configured to anode sizing agent, are then coated with
On collector, drying, calendering are obtained positive plate；
(3) preparation of electrolyte
Butyl acetylpropanoate, 2- butanol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power
For 300W, it is 50min with the response time that reaction temperature is 160 DEG C, and reaction is lowered the temperature through system air blast cooling after terminating, and takes out and reacts
Mixture, separated prepared gamma-valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
Wherein, the 2- butanol, the mass ratio of Butyl acetylpropanoate are 20：1, the mass ratio of the aluminum isopropylate. and Butyl acetylpropanoate
For 1：6；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and
Naked battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and is sealed
The opening of battery container, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
Claims (10)
1. a kind of preparation method of low-cost and high-quality lithium ion battery, it is characterised in that comprise the following steps：
(1) preparation of negative plate
Micropowder, binding agent, conductive agent and Surface coating are had the micropowder mixing and stirring of polymer, prepared negative pole material
Then negative material is coated on a current collector by material, and then baking, roll-in, cutting, obtain negative plate；
(2) preparation of positive plate
Ferric lithium phosphate precursor, conductive agent, binding agent and solvent are configured to anode sizing agent, are then coated with a current collector, warp
Dry, calendering is obtained positive plate；
(3) preparation of electrolyte
Levulic acid esters raw material, secondary alcohol and aluminum isopropylate. is added first in microwave reactor；Set initial microwave power,
Reaction temperature and response time, reaction is lowered the temperature through system air blast cooling after terminating, taking-up reactant mixture, and separated prepared γ-
Valerolactone；Then will be uniform to lithium tetraborate and gamma-valerolactone ultrasonic mixing, prepared electrolyte；
(4) preparation of lithium ion battery
In the middle setting barrier film of positive plate and negative plate, and positive plate, barrier film and negative plate are made naked battery core, and will be naked
Battery core is packaged in battery container, toward electrolyte obtained in implantation step in battery container (3) in drying shed, and sealed cell
The opening of housing, heating pressurization, forming and capacity dividing, obtain low-cost and high-quality lithium ion battery.
2. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(1), in, the micropowder is native graphite, Delanium, carbon fiber, one or more mixing in CNT.
3. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Described viscous
Knot agent is phenolic resin, polyvinyl alcohol, epoxy resin, politef, Kynoar, the one kind in hydroxymethyl cellulose or
Multiple mixing.
4. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Described lead
Electric agent is acetylene black, one or two mixing in electrically conductive graphite.
5. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(1), in, polymer in the micropowder for being coated with polymer is zinc-containing solid catalyst, polyalkylene oxides, poly- third
One or more mixing in olefin(e) acid Arrcostab, polyalkyl methacrylate.
6. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(3), in, the levulic acid esters are methyl ester levulinate, ethyl levulinate, one or more in Butyl acetylpropanoate
Mixing.
7. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(3) in, the secondary alcohol is isopropanol, the one kind in 2- butanol.
8. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(3), in, the secondary alcohol, the mass ratio of levulic acid esters raw material are (8-25)：1.
9. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(3), in, the aluminum isopropylate. is 1 with the mass ratio of levulic acid esters raw material：(1-8).
10. a kind of preparation method of low-cost and high-quality lithium ion battery as claimed in claim 1, it is characterised in that：Step
(3), in, it is 10-60min in 130-170 DEG C, the response time that the reaction temperature is.
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| CN201610934262.4A CN106450170A (en) | 2016-10-25 | 2016-10-25 | Production method of low-cost and high-quality lithium-ion battery |
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| CN201610934262.4A CN106450170A (en) | 2016-10-25 | 2016-10-25 | Production method of low-cost and high-quality lithium-ion battery |
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| CN106450170A true CN106450170A (en) | 2017-02-22 |
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ID=58178152
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