CN106169579A - A kind of novel lithium battery - Google Patents
A kind of novel lithium battery Download PDFInfo
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- CN106169579A CN106169579A CN201610754040.4A CN201610754040A CN106169579A CN 106169579 A CN106169579 A CN 106169579A CN 201610754040 A CN201610754040 A CN 201610754040A CN 106169579 A CN106169579 A CN 106169579A
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- pole piece
- conductive black
- sizing agent
- water
- lithium battery
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
- H01M4/602—Polymers
- H01M4/604—Polymers containing aliphatic main chain polymers
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
Abstract
The invention discloses a kind of novel lithium battery, including anode pole piece and cathode pole piece, anode pole piece is prepared by anode sizing agent, cathode pole piece is prepared by cathode size, described anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt lithium aluminate 96.5% ~ 97.8%, conductive black 0 ~ 2.00%, CNT 0 ~ 1.00%, Kynoar 1.20 ~ 1.50% and N methyl pyrrolidone 40.6%, described cathode size includes the raw material of each mass percentage content following: silicon-carbon 94.0%, conductive black 2.5%, sodium carboxymethyl cellulose 1.5%, SBR emulsion 4.0% and water 144.0% ~ 148.0%.This invention novel lithium battery is up to 3.0 AH, electric discharge temperature rise is low, can be with 2C quick charge, 20A cycle life is up to 600 times, battery safety is excellent, can replace two 1.5 AH batteries, is possible not only to reduce the quantity in parallel of battery on tool batteries, reduce technology difficulty, it is also possible to improve the concordance of set of cells.
Description
Technical field
The present invention relates to technical field of lithium batteries, be specifically related to a kind of novel lithium battery.
Background technology
At present, the anode sizing agent of lithium ion battery usually contains active substance, conductive agent, binding agent, it is also possible to containing certain
A little conductive additives.Owing to the main component of the binding agent of lithium ion battery positive pole is generally not readily dissolved in water, the most generally need
Organic solvent to be used, such as, N-Methyl pyrrolidone (N-Methyl pyrrolidone), dimethyl acetylamide etc..Organic with these
Solvent phase with the use of high molecular bonding material be typically PVDF (Kynoar).Organic solvent is used to have lacking of many
Point: 1) there is certain toxicity due to the organic solvent used, thus, apparatus for coating must be accompanied by solvent recovering system,
Can guarantee that the gas after reclaiming meets environmental requirement.2) inflammable, explosive due to organic solvent, apparatus for coating not only to be arranged
Solvent recovering system, it is necessary to explosion-protection equipment is set in its heating system.And, this heating system typically uses deep fat mode
Heating.Owing to this heating system needs to add boiler plant to provide deep fat so that power cost strengthens, and equipment is complicated and controls
Difficulty.3) organic solvent easily absorbs air moisture, and after water suction, pole piece caking property declines, and has a strong impact on cycle performance of battery, from
And must the humidity of environment time strictly slurry is prepared in control.4) organic solvent is relatively costly, causes the cost increase of battery.I
State patent application CN00117141.0 discloses a kind of Review on Binders for Li Ion Battery, and this adhesive have employed coupling agent modified
Kynoar, employs organic solvent in slurry.
Lithium battery is during recycling, and in charge and discharge process, SEI film, all by certain destruction, is broken each time
The integrity of SEI film, causes internal the extruding by bigger solvent molecule of negative material.Reduce battery.
Summary of the invention
Instant invention overcomes above-mentioned shortcoming, and a kind of novel lithium battery be provided, the standby novel lithium battery obtained up to
3.0AH, electric discharge temperature rise is low, can be with 2C quick charge, and battery safety is excellent.
To achieve these goals, the present invention is to realize by the following technical solutions: this novel lithium battery just includes
Pole pole piece and cathode pole piece, anode pole piece is prepared by anode sizing agent, and cathode pole piece is prepared by cathode size, and anode sizing agent includes nickel
Cobalt lithium aluminate, conductive black, CNT, Kynoar and N-Methyl pyrrolidone, cathode size includes silicon-carbon, conduction charcoal
Black, sodium carboxymethyl cellulose, SBR emulsion and water, wherein, the preparation method of novel lithium battery comprises the following steps:
1) nickel cobalt lithium aluminate, conductive black, CNT, Kynoar and N-crassitude are weighed the most respectively
Ketone;
2) in N-Methyl pyrrolidone, nickel cobalt lithium aluminate, conductive black, CNT, Kynoar, stirring are added
Uniformly, the anode sizing agent that viscosity is 3000-8000 centipoise is formed;
3) by step 2) in the anode sizing agent of gained be coated, roll-in and being dried, obtain anode pole piece;
4) silicon-carbon, conductive black, sodium carboxymethyl cellulose, SBR emulsion and water are weighed the most respectively;
5) in the mixed solution of sodium carboxymethyl cellulose, SBR emulsion and water, add silicon-carbon and conductive black, stir
Mix uniformly, form the cathode size that viscosity is 5000-8000 centipoise;
6) by step 5) in the cathode size of gained be coated, roll-in and being dried, obtain cathode pole piece;
7) by step 3) in the anode pole piece that obtains and step 6) in the cathode pole piece that obtains carry out the assembling of lithium battery, i.e.
Obtain novel lithium battery.
Described anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt lithium aluminate 96.5%~
97.8%, conductive black 0~2.00%, CNT 0~1.00%, Kynoar 1.20~1.50% and N-methylpyrrole
Alkanone 40.6%.
Described cathode size includes the raw material of each mass percentage content following: silicon-carbon 94.0%, conductive black
2.5%, sodium carboxymethyl cellulose 1.5%, SBR emulsion 4.0% and water 144.0%~148.0%.
Above-mentioned middle letter representation is: NCA: nickel cobalt lithium aluminate, SP: conductive black, CNT: CNT, PVDF: poly-inclined fluorine
Ethylene, NMP:N-methyl pyrrolidone, Si-C 420-B3: silicon-carbon, CMC: sodium carboxymethyl cellulose, SBR: SBR emulsion.
Preferably, described positive electrode mass percentage content is 96.50%.
Preferably, described negative material mass percentage content is 94.00%.
Preferably, described water is deionized water.
Preferably, described electrical conductivity of water is less than 2.5 μ S/cm.
The invention has the beneficial effects as follows: the novel lithium battery raw material in the present invention is relatively easily obtained, preparation technology flow process
Simply, cost of manufacture is cheap, and the novel lithium battery prepared is up to 3.0AH, and electric discharge temperature rise is low, can be with 2C quick charge, 20A
Cycle life is up to 600 times, and battery safety is excellent, is current domestic FA tool batteries.It addition, this battery can
To replace two 1.5AH batteries, tool batteries is possible not only to reduce the quantity in parallel of battery, reduces technology difficulty, also may be used
To improve the concordance of set of cells.
Detailed description of the invention
Embodiment 1
Anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt lithium aluminate 96.5%, conductive black
2.0%, Kynoar 1.50% and N-Methyl pyrrolidone 40.6%.Cathode size includes silicon-carbon 94.0%, conductive black
2.5%, sodium carboxymethyl cellulose 1.5%, SBR emulsion 4.0% and water 144.0%~148.0%.Novel lithium battery
Preparation method comprises the following steps:
1) nickel cobalt lithium aluminate, conductive black, CNT, Kynoar and N-crassitude are weighed the most respectively
Ketone;
2) in N-Methyl pyrrolidone, nickel cobalt lithium aluminate, conductive black, CNT, Kynoar, stirring are added
Uniformly, formed and expect at the beginning of the anode sizing agent that viscosity is 3000~8000 centipoises;
3), after adding conductive black and CNT in N-Methyl pyrrolidone, first stir under the speed of 18~22rpm
Mix 5min, scrape stirring paddle, after under the speed of 48~52rpm, stir 60min, continuously add Kynoar, first 18~
Under the speed of 22rpm stir 5min, scrape stirring paddle, after stir under the alternate agitation speed of 48~52rpm and 1950~2050rpm
Mix 120min, add and expect at the beginning of the anode sizing agent that mass percentage content is 50%, speed stirring under the speed with 18~22rpm
After 10min, scrape stirring paddle, stir 30min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, continuously add
Mass percentage content be 50% anode sizing agent at the beginning of expect, under the speed with 18~22rpm speed stirring 10min after, scrape and stir
Mix oar, stir 240min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, prepare viscosity 3000-8000 li
The slurry of pool solid content 70-80%, extracting vacuum, remove excessive gas, measure underproof addition N-Methyl pyrrolidone, with
Under the alternate agitation speed of 48~52rpm and 1950~2050rpm stir 30min, after with 33~37rpm and 450~550rpm
Alternate agitation 30min, obtain the anode sizing agent of viscosity 3000-8000 centipoise solid content 70-80%;By step 3) in gained just
Pole slurry is coated, roll-in and be dried, obtain anode pole piece;
4) silicon-carbon, conductive black, sodium carboxymethyl cellulose, SBR emulsion and water are weighed the most respectively;
5) in the mixed solution of sodium carboxymethyl cellulose, SBR emulsion and water, add silicon-carbon and conductive black, stir
Mix uniformly, formed and expect at the beginning of the cathode size that viscosity is 5000~8000 centipoises;
6) take after the water of 1/3rd cumulative volumes adds sodium carboxymethyl cellulose, after stirring 0.5h with the speed of 6HZ, scrape
Stirring paddle, then stir 240min with the speed of 6HZ, whether observation liquid is to water white transparency, if also g., jelly-like caked mass, continues
Stirring 1h, obtains glue, set aside for use after having stirred;Add at the beginning of cathode size in conductive black and expect, with 28~32rpm and
Add glue after the speed alternate agitation 30min of 50~150rpm, after the speed with 18~22rpm stirs 10min, scrape stirring
Oar, with the speed alternate agitation 60min of 38~42rpm and 1150~1250rpm, midway adds 2~5 water, and midway adds water inventory
Be the water of 1/3rd cumulative volumes so that after viscosity reaches 20000mpa.s, add the water of 1/3rd cumulative volumes, with 38~
The speed alternate agitation 90min of 42rpm and 1150~1250rpm, measures viscosity solid content, if qualified, adds butadiene-styrene rubber breast
Liquid, vacuum stirring, if defective, add water regulation, and with under the alternate agitation speed of 38~42rpm and 1950~2050rpm
Stirring 30min, after with 38~42rpm and 450~550rpm alternate agitation 30min, obtain cathode size;
7) by step 7) in the cathode size of gained be coated, roll-in and being dried, obtain cathode pole piece;
8) by step 4) in the anode pole piece that obtains and step 8) in the cathode pole piece that obtains carry out the assembling of lithium battery, i.e.
Obtain novel lithium battery;
By step 4) in the anode pole piece that obtains and step 8) in the cathode pole piece that obtains carry out the assembling of lithium battery, to obtain final product
To novel lithium battery.
Embodiment 2
Anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt lithium aluminate 97.5%, conductive black
0.50%, CNT 0.50%, Kynoar 1.50% and N-Methyl pyrrolidone 40.6%.Cathode size includes silicon-carbon
94.0%, conductive black 2.5%, sodium carboxymethyl cellulose 1.5%, SBR emulsion 4.0% and water 144.0%~
148.0%.The preparation method of novel lithium battery comprises the following steps:
1) nickel cobalt lithium aluminate, conductive black, CNT, Kynoar and N-crassitude are weighed the most respectively
Ketone;
2) in N-Methyl pyrrolidone, nickel cobalt lithium aluminate, conductive black, CNT, Kynoar, stirring are added
Uniformly, formed and expect at the beginning of the anode sizing agent that viscosity is 3000~8000 centipoises;
9), after adding conductive black and CNT in N-Methyl pyrrolidone, first stir under the speed of 18~22rpm
Mix 5min, scrape stirring paddle, after under the speed of 48~52rpm, stir 60min, continuously add Kynoar, first 18~
Under the speed of 22rpm stir 5min, scrape stirring paddle, after stir under the alternate agitation speed of 48~52rpm and 1950~2050rpm
Mix 120min, add and expect at the beginning of the anode sizing agent that mass percentage content is 50%, speed stirring under the speed with 18~22rpm
After 10min, scrape stirring paddle, stir 30min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, continuously add
Mass percentage content be 50% anode sizing agent at the beginning of expect, under the speed with 18~22rpm speed stirring 10min after, scrape and stir
Mix oar, stir 240min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, prepare viscosity 3000-8000 li
The slurry of pool solid content 70-80%, extracting vacuum, remove excessive gas, measure underproof addition N-Methyl pyrrolidone, with
Under the alternate agitation speed of 48~52rpm and 1950~2050rpm stir 30min, after with 33~37rpm and 450~550rpm
Alternate agitation 30min, obtain the anode sizing agent of viscosity 3000-8000 centipoise solid content 70-80%;By step 3) in gained just
Pole slurry is coated, roll-in and be dried, obtain anode pole piece;
3) by step 3) in the anode sizing agent of gained be coated, roll-in and being dried, obtain anode pole piece;
4) silicon-carbon, conductive black, sodium carboxymethyl cellulose, SBR emulsion and water are weighed the most respectively;
5) in the mixed solution of sodium carboxymethyl cellulose, SBR emulsion and water, add silicon-carbon and conductive black, stir
Mix uniformly, formed and expect at the beginning of the cathode size that viscosity is 5000~8000 centipoises;
6) take after the water of 1/3rd cumulative volumes adds sodium carboxymethyl cellulose, after stirring 0.5h with the speed of 6HZ, scrape
Stirring paddle, then stir 240min with the speed of 6HZ, whether observation liquid is to water white transparency, if also g., jelly-like caked mass, continues
Stirring 1h, obtains glue, set aside for use after having stirred;Add at the beginning of cathode size in conductive black and expect, with 28~32rpm and
Add glue after the speed alternate agitation 30min of 50~150rpm, after the speed with 18~22rpm stirs 10min, scrape stirring
Oar, with the speed alternate agitation 60min of 38~42rpm and 1150~1250rpm, midway adds 2~5 water, and midway adds water inventory
Be the water of 1/3rd cumulative volumes so that after viscosity reaches 20000mpa.s, add the water of 1/3rd cumulative volumes, with 38~
The speed alternate agitation 90min of 42rpm and 1150~1250rpm, measures viscosity solid content, if qualified, adds butadiene-styrene rubber breast
Liquid, vacuum stirring, if defective, add water regulation, and with under the alternate agitation speed of 38~42rpm and 1950~2050rpm
Stirring 30min, after with 38~42rpm and 450~550rpm alternate agitation 30min, obtain cathode size;
By step 4) in the anode pole piece that obtains and step 8) in the cathode pole piece that obtains carry out the assembling of lithium battery, to obtain final product
To novel lithium battery.
Embodiment 3
Anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt lithium aluminate 97.8%, CNT
1.00%, Kynoar 1.20% and N-Methyl pyrrolidone 40.6%.Cathode size includes silicon-carbon 94.00%, conduction charcoal
Black 2.50%, sodium carboxymethyl cellulose 1.50%, SBR emulsion 4.00% and water 144.00%~148.00%.Novel lithium
The preparation method of battery comprises the following steps:
1) nickel cobalt lithium aluminate, conductive black, CNT, Kynoar and N-crassitude are weighed the most respectively
Ketone;
2) in N-Methyl pyrrolidone, nickel cobalt lithium aluminate, conductive black, CNT, Kynoar, stirring are added
Uniformly, formed and expect at the beginning of the anode sizing agent that viscosity is 3000~8000 centipoises;
10), after adding conductive black and CNT in N-Methyl pyrrolidone, first stir under the speed of 18~22rpm
Mix 5min, scrape stirring paddle, after under the speed of 48~52rpm, stir 60min, continuously add Kynoar, first 18~
Under the speed of 22rpm stir 5min, scrape stirring paddle, after stir under the alternate agitation speed of 48~52rpm and 1950~2050rpm
Mix 120min, add and expect at the beginning of the anode sizing agent that mass percentage content is 50%, speed stirring under the speed with 18~22rpm
After 10min, scrape stirring paddle, stir 30min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, continuously add
Mass percentage content be 50% anode sizing agent at the beginning of expect, under the speed with 18~22rpm speed stirring 10min after, scrape and stir
Mix oar, stir 240min under the alternate agitation speed with 48~52rpm and 1950~2050rpm, prepare viscosity 3000-8000 li
The slurry of pool solid content 70-80%, extracting vacuum, remove excessive gas, measure underproof addition N-Methyl pyrrolidone, with
Under the alternate agitation speed of 48~52rpm and 1950~2050rpm stir 30min, after with 33~37rpm and 450~550rpm
Alternate agitation 30min, obtain the anode sizing agent of viscosity 3000-8000 centipoise solid content 70-80%;By step 3) in gained just
Pole slurry is coated, roll-in and be dried, obtain anode pole piece;
3) by step 3) in the anode sizing agent of gained be coated, roll-in and being dried, obtain anode pole piece;
4) silicon-carbon, conductive black, sodium carboxymethyl cellulose, SBR emulsion and water are weighed the most respectively;
5) in the mixed solution of sodium carboxymethyl cellulose, SBR emulsion and water, add silicon-carbon and conductive black, stir
Mix uniformly, formed and expect at the beginning of the cathode size that viscosity is 5000~8000 centipoises;
6) take after the water of 1/3rd cumulative volumes adds sodium carboxymethyl cellulose, after stirring 0.5h with the speed of 6HZ, scrape
Stirring paddle, then stir 240min with the speed of 6HZ, whether observation liquid is to water white transparency, if also g., jelly-like caked mass, continues
Stirring 1h, obtains glue, set aside for use after having stirred;Add at the beginning of cathode size in conductive black and expect, with 28~32rpm and
Add glue after the speed alternate agitation 30min of 50~150rpm, after the speed with 18~22rpm stirs 10min, scrape stirring
Oar, with the speed alternate agitation 60min of 38~42rpm and 1150~1250rpm, midway adds 2~5 water, and midway adds water inventory
Be the water of 1/3rd cumulative volumes so that after viscosity reaches 20000mpa.s, add the water of 1/3rd cumulative volumes, with 38~
The speed alternate agitation 90min of 42rpm and 1150~1250rpm, measures viscosity solid content, if qualified, adds butadiene-styrene rubber breast
Liquid, vacuum stirring, if defective, add water regulation, and with under the alternate agitation speed of 38~42rpm and 1950~2050rpm
Stirring 30min, after with 38~42rpm and 450~550rpm alternate agitation 30min, obtain cathode size;
7) by step 7) in the cathode size of gained be coated, roll-in and being dried, obtain cathode pole piece;
8) by step 4) in the anode pole piece that obtains and step 8) in the cathode pole piece that obtains carry out the assembling of lithium battery, i.e.
Obtain novel lithium battery;
By step 4) in the anode pole piece that obtains and step 8) in the cathode pole piece that obtains carry out the assembling of lithium battery, to obtain final product
To novel lithium battery.
Detected by the lithium battery of above-described embodiment 1-3, the novel lithium battery discharge capacity in the present embodiment 1-3
Reaching 3.0Ah, this battery is suitable on electric tool using, and continuous discharge electric current is up to 30A, and electric discharge temperature rise is low, can be quick with 2C
Charging, 20A cycle life is up to 600 times, and battery safety is excellent, is current domestic FA tool batteries, this electricity
Pond can replace two 1.5Ah batteries, is possible not only to reduce the quantity in parallel of battery, reduces technology difficulty on tool batteries,
The concordance of set of cells can also be improved.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (4)
1. a novel lithium battery, it is characterised in that including anode pole piece and cathode pole piece, anode pole piece is by anode sizing agent system
, cathode pole piece is prepared by cathode size, and described anode sizing agent includes the raw material of each mass percentage content following: nickel cobalt aluminum
Acid lithium 96.5% ~ 97.8%, conductive black 0 ~ 2.00%, CNT 0 ~ 1.00%, Kynoar 1.20 ~ 1.50%
With N-Methyl pyrrolidone 40.6%, described cathode size includes the raw material of each mass percentage content following: silicon-carbon
94.0%, conductive black 2.5%, sodium carboxymethyl cellulose 1.5%, SBR emulsion 4.0% and water 144.0% ~
148.0%.
2. according to the novel lithium battery described in claim 1, it is characterised in that described anode sizing agent includes each percent mass
Raw material than content: nickel cobalt lithium aluminate 96.5%, conductive black 2.0%, Kynoar 1.50% and N-crassitude
Ketone 40.6%;
Described cathode size includes silicon-carbon 94.0%, conductive black 2.5%, sodium carboxymethyl cellulose 1.5%, butadiene-styrene rubber
Emulsion 4.0% and water 144.0% ~ 148.0%.
Novel lithium battery the most according to claim 1, it is characterised in that described anode sizing agent includes each quality hundred following
The raw material of proportion by subtraction content: nickel cobalt lithium aluminate 97.5%, conductive black 0.50%, CNT 0.50%, Kynoar
1.50% and N-Methyl pyrrolidone 40.6%;
Described cathode size includes silicon-carbon 94.0%, conductive black 2.5%, sodium carboxymethyl cellulose 1.5%, butadiene-styrene rubber
Emulsion 4.0% and water 144.0% ~ 148.0%.
Novel lithium battery the most according to claim 1, it is characterised in that described anode sizing agent includes each quality hundred following
The raw material of proportion by subtraction content: nickel cobalt lithium aluminate 97.8%, CNT 1.00%, Kynoar 1.20% and N-methylpyrrole
Alkanone 40.6%;Described cathode size includes silicon-carbon 94.00%, conductive black 2.50%, sodium carboxymethyl cellulose
1.50%, SBR emulsion 4.00% and water 144.00% ~ 148.00%.
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Cited By (1)
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CN112490513A (en) * | 2020-12-21 | 2021-03-12 | 潍坊聚能电池有限公司 | Method for improving battery capacity consistency |
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