CN106169579A - A kind of novel lithium battery - Google Patents

A kind of novel lithium battery Download PDF

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Publication number
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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China
Prior art keywords
pole piece
conductive black
sizing agent
water
lithium battery
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CN201610754040.4A
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Inventor
钱国珠
陈璇
侯峰
黄满湘
刘涛
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JIANGSU TENPOWER LITHIUM CO Ltd
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JIANGSU TENPOWER LITHIUM CO Ltd
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Priority to CN201610754040.4A priority Critical patent/CN106169579A/en
Publication of CN106169579A publication Critical patent/CN106169579A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/48Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525Selection 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection 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
    • H01M4/583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/60Selection of substances as active materials, active masses, active liquids of organic compounds
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/60Selection of substances as active materials, active masses, active liquids of organic compounds
    • H01M4/602Polymers
    • H01M4/604Polymers containing aliphatic main chain polymers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624Electric conductive fillers
    • H01M4/625Carbon or graphite
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy 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

A kind of novel lithium battery
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%.
CN201610754040.4A 2016-08-29 2016-08-29 A kind of novel lithium battery Pending CN106169579A (en)

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Application publication date: 20161130