CN106410141A - Cylindrical lithium ion battery for electric tool and preparation method of cylindrical lithium ion battery - Google Patents
Cylindrical lithium ion battery for electric tool and preparation method of cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN106410141A CN106410141A CN201610911905.3A CN201610911905A CN106410141A CN 106410141 A CN106410141 A CN 106410141A CN 201610911905 A CN201610911905 A CN 201610911905A CN 106410141 A CN106410141 A CN 106410141A
- Authority
- CN
- China
- Prior art keywords
- preparation
- salt
- lithium ion
- ion battery
- active material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01M4/362—Composites
-
- 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
- H01M10/058—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
- 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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
-
- 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
-
- 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
-
- 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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a cylindrical lithium ion battery for an electric tool and a preparation method of the cylindrical lithium ion battery. The preparation method comprises the following steps of: (1) stirring a conducting agent Super P,KS-6 with a positive active material in a high speed, adding a binding agent PVDF, stirring at a high speed, adding NMP in batches, stirring at a high speed, smearing the front and rear surfaces of an aluminum foil with a screened material, and carrying out drying, grinding and plate production so as to obtain a positive plate; (2) stirring a conducting agent Super P with a negative active material in a high speed, adding a binding agent, adding deionized water in batches, stirring at a high speed, finally smearing the front and rear surfaces of a copper foil with a screened material, and carrying out drying, grinding, subsection and plate production so as to obtain a negative plate; (3) baking and winding the positive plate and the negative plate, injecting electrolyte, and sealing openings of the positive plate and the negative plate, so as to obtain an assembled battery; and (4) carrying out formation. The cylindrical lithium ion battery prepared by virtue of the preparation method has excellent internal resistance, rate capability, fast charging capacity, large current cycle performance and safety performance.
Description
Technical field
The present invention relates to lithium ion battery, in particular it relates to electric tool column lithium ion battery and its preparation side
Method.
Background technology
Electric tool battery mainly has nickel system battery and lithium ion battery.But nickel-cadmium cell exists in use
The defect such as high pollution and storage inefficacy.And lithium ion battery has energy density greatly relative to nickel system battery, have extended cycle life, fill
The electric time is short, the advantage such as memory-less effect, and therefore lithium ion battery is widely used in field of power tools.Business-like lithium at present
Ion battery positive electrode typically adopts the materials such as LiMn2O4, cobalt acid lithium, LiFePO4 and nickle cobalt lithium manganate.Wherein LiMn2O4
Cost is relatively low, but because its material is unstable, high-temperature behavior is poor.LiFePO4 Stability Analysis of Structures, cycle performance is excellent, but electronics is electric
Conductance relatively low it is impossible to meet electric tool heavy-current discharge performance.Cobalt acid lithium is relatively costly, and anti-over-charging ability, for battery
Group cycle life is subject to considerable influence.And the lithium ion battery with cobalt nickel lithium manganate ternary material as positive pole, because of its high-energy-density,
Good cycle performance, and higher voltage platform and gain great popularity.However, nickle cobalt lithium manganate battery is in the larger situation of electric current
Under, electrode polarization is serious, and caloric value is big, leads to discharge and recharge irreversible capacity to increase, thus badly influencing high current cyclicity
Energy.Therefore prepare high conductivity and the positive electrode of long circulation life becomes current study hotspot.
But ternary lithium ion battery yet suffers from some problems in use, such as：1) part lithium ion battery
There is a problem of that internal resistance is higher, and the internal resistance of lithium ion battery have considerable influence to power tool battery performance, the internal resistance of cell is high,
A large amount of Joule heats can be produced under high current environment, lead to battery discharge platform to reduce, discharge time shortens, and has a strong impact on battery
Life-span.2) power tool battery field, needs be adapted to battery to have instantaneous high power, this heavy-current discharge to battery
Performance has higher requirements, and in the case of heavy-current discharge, inside battery is brought rapidly up, and serious is even short-circuited, and there is peace
Full hidden danger.3) common ternary lithium ion battery, under large current density cycling condition, inside battery polarization increases, not pregnancy ceased
Raw irreversible capacity, last is decayed.
Content of the invention
It is an object of the invention to provide a kind of electric tool column lithium ion battery and preparation method thereof, by the party
The electric tool column lithium ion battery that method is obtained has excellent internal resistance, high rate performance, rapid charging performance, high current circulation
Performance and security performance, and this preparation method operation is simple, is easy to promote.
To achieve these goals, the invention provides a kind of preparation side of electric tool column lithium ion battery
Method, including：
1) by conductive agent Super P, KS-6 and positive active material high-speed stirred, add binding agent PVDF (glue) high
Speed stirring, is then dividedly in some parts NMP high-speed stirred, be finally applied to the positive and negative of aluminium foil carrying out dry, roll, article points,
Film-making is to obtain positive plate；
2) by conductive agent Super P and negative electrode active material high-speed stirred, add binding agent (containing CMC and SBR), connect
And be dividedly in some parts deionized water high-speed stirred, be finally applied to the positive and negative of Copper Foil carrying out dry, roll, article points, film-making
To obtain negative plate；
3) positive plate with negative plate baking, winding, dress shell, slot rolling, baking, injection electrolyte and is sealed to be assembled
Battery；
4) assemble is melted into obtain electric tool column lithium ion battery；
Wherein, positive active material is modification three raw material for Mg2+ doping ZnO cladding；Negative electrode active material is ion
Doping type polypyrrole coats Delanium.
Present invention also offers a kind of electric tool column lithium ion battery, this electric tool column lithium ion
Battery is prepared by above-mentioned preparation method.
In technique scheme, present invention technical scheme in the following manner：1) optimization of positive electrode：Using metal
Oxide cladding and ion doping technique, first obtain Mg with ion doping technique2+The cobalt nickel lithium manganate ternary material of doping, then use
ZnO coats to it.Mg2+Doping nickel-cobalt lithium manganate material extends the migrating channels of lithium ion in ternary material lattice, carries
The electrical conductivity of high material, improves the high rate performance of battery.The cladding of ZnO improves the interface shape of active material and electrolyte
Condition, it is suppressed that the untoward reaction at interface, improves cycle performance.2) optimization of negative material：Using the poly- pyrrole of protonic acid doping type
Cough up cladding Delanium, prepare negative material.Protonic acid doping polypyrrole, improves the electric conductivity of polypyrrole, using matter
Sub- acid doping type polypyrrole coats Delanium, reduces graphite cathode cubical expansivity, improves the electric conductivity of negative material,
Improve the rapid charging performance of battery.3) improve both positive and negative polarity and close slurry mode：First high-speed stirred configuration glue (binding agent), after by conduction
Agent, major ingredient are dry mixed stirring, be subsequently adding glue stirring certain time, solvent subsequently adds stirring in batches.By conductive agent with
The purpose that major ingredient is dry mixed stirring is to avoid commonly closing conductive agent in slurry mode mixing uneven phenomenon with major ingredient.After adding glue
The purpose of addition solvent is in batches, it is to avoid continue the infringement that high-viscosity stirring brings to equipment, and continues low viscosity stirring
The phenomenon of the slurry scattering effect difference causing.Solid content height, particle diameter are had using the anode and cathode slurry of above stirring means preparation
It is uniformly dispersed, the advantage such as good stability.
By above-mentioned technological improvement, prepared electric tool column lithium ion battery is had the advantage that：1)
The reduction of internal resistance：Internal resistance≤14m Ω, the reduction of the internal resistance of cell can suitably mitigate the polarization phenomena under the conditions of high current, improves electricity
The service life in pond.2) raising of high rate performance：Charging current >=10C, the charging interval >=5s；Discharge current >=30C, during electric discharge
Between >=5s.3) lifting of rapid charging performance：0.5h charge capacity >=88%.4) lifting of high current cycle performance：1C charging 10C is put
Electricity, circulates 1000 times, residual capacity >=85% rated capacity；2C charging 10C discharges, and circulates 500 times, residual capacity >=70% volume
Constant volume.5) raising of security performance：After fully charged can extruding, shake, fall, short circuit, overcharge, the test condition such as heat abuse
Under not on fire, do not explode.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the electric tool column lithium ion battery of embodiment 1 in detection example 1 in 10C pulse charge curve chart；
Fig. 2 is the electric tool column lithium ion battery of embodiment 1 in detection example 1 in 30C pulsed discharge curve chart；
Fig. 3 is that the electric tool column lithium ion battery of embodiment 1 in detection example 1 charges in 1C, 10C discharging condition
Under cycle performance curve chart.
Fig. 4 is that the electric tool column lithium ion battery of embodiment 1 in detection example 1 charges in 2C, 10C discharging condition
Under cycle performance curve chart.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that it is described herein concrete
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of electric tool column lithium ion battery, including：
1) by conductive agent Super P, KS-6 and positive active material high-speed stirred, add binding agent PVDF (glue) high
Speed stirring, is then dividedly in some parts NMP high-speed stirred, be finally applied to the positive and negative of aluminium foil carrying out dry, roll, article points,
Film-making is to obtain positive plate；
2) by conductive agent Super P and negative electrode active material high-speed stirred, add binding agent (containing CMC and SBR), connect
And be dividedly in some parts deionized water high-speed stirred, be finally applied to the positive and negative of Copper Foil carrying out dry, roll, article points, film-making
To obtain negative plate；
3) positive plate with negative plate baking, winding, dress shell, slot rolling, baking, injection electrolyte and is sealed to be assembled
Battery；
4) assemble is melted into obtain electric tool column lithium ion battery；
Wherein, positive active material is for Mg2+Modification three raw material of doping ZnO cladding；Negative electrode active material is ion
Doping type polypyrrole coats Delanium；Chemical conversion meets following condition：First with the electric current charging 100- of 0.02-0.04C
140min, then with the electric current charging 40-40min of 0.15-0.25C.
Step 1 in the present invention) in, the consumption of each material can select in wide scope, but in order that be obtained
Electric tool column lithium ion battery have more excellent internal resistance, high rate performance, rapid charging performance, high current cycle performance and
Security performance is it is preferable that in step 1) in, with conductive agent Super P, KS-6, binding agent PVDF and positive active material total
On the basis of weight, the consumption of positive active material is 90-96 weight %, and the consumption of conductive agent Super P and KS-6 is 1-4 weight
The consumption of amount %, binding agent PVDF is 3-6 weight %.
Step 2 in the present invention) in, the consumption of each material can select in wide scope, but in order that be obtained
Electric tool column lithium ion battery have more excellent internal resistance, high rate performance, rapid charging performance, high current cycle performance and
Security performance is it is preferable that in step 2) in, on the basis of negative electrode active material, conductive agent Super P, the gross weight of binding agent,
The consumption of negative electrode active material is 89-96 weight %, and the consumption of binding agent is 2-6 weight %, and the consumption of conductive agent is 2-5 weight
Amount %.
In the present invention, the actual conditions of high-speed stirred can select in wide scope, but in order that the electricity being obtained
Power driven tools column lithium ion battery has more excellent internal resistance, high rate performance, rapid charging performance, high current cycle performance and peace
Full performance is it is preferable that in step 1) and 2) in, high-speed stirred meets following condition：Revolution speed is 15-35HZ, autorotation speed
For 1500-3500RPM, the time of stirring is 10-90min every time..
Step 1 in the present invention) in, NMP adds number of times and consumption and can select in wide scope, but in order to
Make that prepared electric tool column lithium ion battery has more excellent internal resistance, high rate performance, rapid charging performance, high current are followed
Ring performance and security performance be it is preferable that in step 1) in, the interpolation number of times of NMP is 2-3 time, and, the NMP of interpolation every time
Weight is the 10-40% of NMP gross weight.
Step 2 in the present invention) in, the adding number of times and consumption and can select in wide scope of deionized water, but
It is in order that the electric tool column lithium ion battery that is obtained has more excellent internal resistance, high rate performance, rapid charging performance, big
Current cycle performance and security performance are it is preferable that in step 2) in, the interpolation number of times of deionized water is 2-3 time, and, every time
The weight of the deionized water adding is the 10-40% of NMP gross weight.
Meanwhile, Mg in the present invention2+The preparation method of modification three raw material of doping ZnO cladding can be in wide scope
Select, but in order that the electric tool column lithium ion battery being obtained has more excellent internal resistance, high rate performance, fills soon
Performance, high current cycle performance and security performance are it is preferable that Mg2+Modification three raw material of doping ZnO cladding is to first pass through Li
The preliminary sintering of salt, Mg salt, Ni salt, Co salt, Mn salt, oxalic acid forms preroasting thing, then disperses Zn salt with preroasting thing
In ethylene glycol, be dried, secondary clacining forms.
In above-mentioned Mg2+In the preparation method of modification three raw material of doping ZnO cladding, the consumption of material can be in wide model
Enclose interior selection, but in order that the electric tool column lithium ion battery being obtained have more excellent internal resistance, high rate performance,
Rapid charging performance, high current cycle performance and security performance are it is preferable that Li salt, Mg salt, Ni salt, Co salt, the mol ratio of Mn salt are
10:0.25:5:2:3-10:1:5:2:3, Zn salt are 1 with the mol ratio of preroasting thing:10-1:100.
In above-mentioned Mg2+In the preparation method of modification three raw material of doping ZnO cladding, the actual conditions of calcining can be in width
In the range of select, but in order that be obtained electric tool column lithium ion battery there is more excellent internal resistance, multiplying power
Performance, rapid charging performance, high current cycle performance and security performance are it is preferable that preliminary sintering meets following condition：Calcining heat is
500-900 DEG C, calcination time is 10-14h；Described secondary clacining calcining meets following condition：Calcining heat is 400-700 DEG C,
Calcination time is 8-2h；It is highly preferred that described preliminary sintering is first from 15-35 DEG C of ramp with 4-6 DEG C/min to 450-550
DEG C calcining 4.5-5.5h, then with the ramp of 7-9 DEG C/min to 850-950 DEG C calcining 6.5-7.5h；Described preliminary sintering
First from the 15-35 DEG C of ramp with 3-5 DEG C/min to 350-450 DEG C of calcining 3.5-4.5h, then with the speed of 6-8 DEG C/min
It is warming up to 650-750 DEG C of calcining 5.5-6.5h.
Meanwhile, the preparation method of ion doping type polypyrrole cladding Delanium can be in wide scope in the present invention
Select, but in order that the electric tool column lithium ion battery being obtained has more excellent internal resistance, high rate performance, fills soon
Performance, high current cycle performance and security performance are it is preferable that ion doping type polypyrrole cladding Delanium is by by pyrroles
It is scattered in hydrochloric acid with Delanium, be subsequently adding FeCl3 mixing, filter and take filter cake calcining to form.
Coat in the preparation method of Delanium in above-mentioned ion doping type polypyrrole, the consumption of material can be in wide model
Enclose interior selection, but in order that the electric tool column lithium ion battery being obtained have more excellent internal resistance, high rate performance,
Rapid charging performance, high current cycle performance and security performance are it is preferable that the mol ratio of pyrroles and Delanium is 1:200-1:20.
Present invention also offers a kind of electric tool column lithium ion battery, this electric tool column lithium ion
Battery is prepared by above-mentioned preparation method.
Hereinafter will be described the present invention by embodiment.
Preparation example 1
The preparation of positive active material：
Li salt, Mg salt, Ni salt, Co salt, Mn salt are pressed 10:0.5:5:2:3 ratio mixing, adds oxalic acid, and mixing is ultrasonic
10min, after above dispersion liquid is dried, prior to 500 DEG C of calcinings 5h, 5 DEG C/min of heating rate, then at 900 DEG C of calcining 7h, heats up
8 DEG C/min of speed, obtains Primary product, above product is ground, and adds Zn salt, Zn salt and Primary product mol ratio
For 1:50, thing mixed above is dispersed in ethylene glycol, ultrasonic 20min, is calcined after being dried, prior to 400 DEG C, calcine 4h,
4 DEG C/min of programming rate, then at 700 DEG C of calcinings 6h, 7 DEG C/min of programming rate.Product after calcining is pulverized and obtains Mg2+Doping
Modification three raw material of ZnO cladding.
Preparation example 2
The preparation of negative electrode active material：
Weigh pyrroles to mix with Delanium, pyrroles is 1 with the mol ratio of graphite:75, add after mixing to 100mL
In the hydrochloric acid of 0.1mol/L, in 10 DEG C of ultrasonic 10min, add 1mol/L FeCl3, react 15h under 5 DEG C of stirring conditions, very
Empty sucking filtration, wash, be dried to obtain protonic acid doping type polypyrrole cladding Delanium.
Embodiment 1
1) (under conditions of not including solvent, in positive plate, each material mass percentage ratio is as follows for the preparation of positive plate：Positive pole is lived
Property material 95%, P binding agent (PVDF) 1.7%, conductive agent (Super P) 1.7%, conductive agent (KS-6) 1.6%.)：First will lead
Electric agent Super P, KS-6 are mixed with positive pole major ingredient, high-speed stirred 15min, rotating speed：Revolution 25HZ, rotation 1800RPM；Subsequently add
Enter pre-configured glue, high-speed stirred 10min, rotating speed：Revolution 35HZ, rotation 2500RPM；Add 10%NMP, high-speed stirring
Mix 1h, rotating speed：Revolution 35HZ, rotation 3500RPM；Continuously add 30%NMP, high-speed stirred 1.5h, rotating speed：Revolution 30HZ, from
Turn 3000RPM；Add remaining NMP, high-speed stirred 30min, rotating speed：Revolution 25HZ, rotation 2500PRM；Adjust viscosity；Stirring
After uniformly, discharging is coated in the two sides of aluminium foil, and carry out drying, roll, article points, the sequence of operations such as film-making, be eventually fabricated specific chi
The very little positive plate with lug.
2) (under conditions of not including solvent, in negative plate, each material mass percentage ratio is as follows for the preparation of negative plate：Extremely activity
Material 93%, binding agent (CMC+SBR) 4.5%, conductive agent (Super P) 2.5%)：First by conductive agent Super P, with negative pole
Major ingredient mixes, high-speed stirred 15min, rotating speed：Revolution 25HZ, rotation 1500RPM；It is subsequently added pre-configured glue, high
Speed stirring 10min, rotating speed：Revolution 35HZ, rotation 2500RPM；Add 20% deionized water, high-speed stirred 1h, rotating speed：Revolution
35HZ, rotation 3000RPM；Continuously add 20% deionized water, high-speed stirred 1.5h, rotating speed：Revolution 30HZ, rotation 3000RPM；
Add remaining deionized water, high-speed stirred 30min, rotating speed：Revolution 25HZ, rotation 2500PRM；Adjust viscosity；Stir
Discharging is coated in the two sides of Copper Foil afterwards, and carry out drying, roll, article points, the sequence of operations such as film-making, be eventually fabricated specific dimensions
Negative plate with lug.
3) battery assembling：By the positive and negative plate preparing respectively at 100 DEG C, 110 DEG C of baking 12h, carry out after then cooling down
Winding, dress shell, point bottom, injects 5.5g electrolyte after slot rolling, and is sealed.
4) battery ageing：Battery is put into 50 DEG C of drying rooms, shelves 8h.
5) Battery formation：Battery cooling after ageing, then carries out preliminary filling chemical conversion, with 0.03C electric current charging 2h, subsequently with
0.2C charging 1h.Finally the battery after chemical conversion is carried out discharge and recharge partial volume test.
The performance of the electric tool column lithium ion battery that the present embodiment is obtained is as follows：1C discharge capacity reaches
2200mAh, box hat model 18650.Rapid charging performance is excellent, 0.5h charging capacity >=88%, and charging current >=10C, during charging
Between >=5s, discharge current >=30C, discharge time >=5s.There is prominent high current cycle performance simultaneously, 1C/10C discharge and recharge follows
Ring 1000 times, residual capacity >=85% initial capacity, 2C/10C circulates 500 times, residual capacity >=70% initial capacity.And fill
Battery after full electricity extrude, shake, fall, short circuit, overcharge, not on fire under the test condition such as heat is abused, do not explode.
Embodiment 2
Method according to embodiment 1 carries out electric tool column lithium ion battery is obtained, except that：Li salt,
Mg salt, Ni salt, Co salt, the ratio of Mn salt are 10:0.75:5:2:3, pyrroles is 1 with the mol ratio of graphite:50.
Embodiment 3
Method according to embodiment 1 carries out electric tool column lithium ion battery is obtained, except that：Li salt,
Mg salt, Ni salt, Co salt, the ratio of Mn salt are 10:1:5:2:3, pyrroles is 1 with the mol ratio of graphite:20.
Detection example 1
1) detect that in embodiment 1, electric tool column lithium ion battery is in 10C pulse charge curve, with the electricity of 22A
Stream constant-current charge 5s, shelves 20s, result is shown in Fig. 1.
2) detect that in embodiment 1, electric tool column lithium ion battery is in 30C pulsed discharge curve, with the electricity of 66A
Stream constant-current discharge 5s, shelves 20s, result is shown in Fig. 2.
3) in detection embodiment 1, electric tool column lithium ion battery charges in 1C, the circulation under 10C discharging condition
Performance curve, result is shown in Fig. 3.As seen from the figure, battery with 2.2A constant-current charge to 4.2V when, switch to constant-voltage charge, cut-off current
For 0.044A, shelve 10min, battery shelves 30min with 22A constant-current discharge to 2.75V.Repeat above step, until circulation
When discharge capacity is less than 85% rated capacity, the life-span is and terminates, circulating battery 1000 times, and capacity is still specified more than 85%
Capacity.
4) in detection embodiment 1, electric tool column lithium ion battery charges in 2C, the circulation under 10C discharging condition
Performance curve, result is shown in Fig. 4.As seen from the figure, battery with 4.4A constant-current charge to 4.2V when, switch to constant-voltage charge, cut-off current
For 0.044A, shelve 10min, battery shelves 30min with 22A constant-current discharge to 2.75V.Repeat above step, until circulation
When discharge capacity is less than 70% rated capacity, the life-span is and terminates, circulating battery 500 times, and capacity is still more than 70% specified appearance
Amount.
In the same manner the electric tool in embodiment 2-3 is detected with column lithium ion battery, detection
The testing result of the electric tool column lithium ion battery in result and embodiment 1 is consistent substantially.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, multiple simple variant can be carried out to technical scheme, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy no longer separately illustrates.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it equally should be considered as content disclosed in this invention.
Claims (10)
1. a kind of preparation method of electric tool column lithium ion battery is it is characterised in that include：
1) by conductive agent Super P, KS-6 and positive active material high-speed stirred, add binding agent PVDF (glue) high-speed stirring
Mix, be then dividedly in some parts NMP high-speed stirred, be finally applied to the positive and negative of aluminium foil carrying out dry, roll, article points, film-making
To obtain positive plate；
2) by conductive agent Super P and negative electrode active material high-speed stirred, add binding agent (containing CMC and SBR), then divide
Batch add deionized water high-speed stirred, be finally applied to the positive and negative of Copper Foil carrying out dry, roll, article points, film-making with
To negative plate；
3) described positive plate with negative plate baking, winding, dress shell, slot rolling, baking, injection electrolyte and is sealed to be assembled
Battery；
4) described assemble is melted into obtain described electric tool column lithium ion battery；
Wherein, described positive active material is modification three raw material for Mg2+ doping ZnO cladding；Described negative electrode active material is
Ion doping type polypyrrole coats Delanium.
2. preparation method according to claim 1, wherein, in step 1) in, with described conductive agent Super P, KS-6, viscous
On the basis of the gross weight of knot agent PVDF and positive active material, the consumption of described positive active material is 90-96 weight %, described
The consumption of conductive agent Super P and KS-6 is 1-4 weight %, and the consumption of described binding agent PVDF is 3-6 weight %.
3. preparation method according to claim 1, wherein, in step 2) in, with described negative electrode active material, conductive agent
On the basis of Super P, the gross weight of binding agent, the consumption of described negative electrode active material is 89-96 weight %, described binding agent
Consumption is 2-6 weight %, and the consumption of described conductive agent is 2-5 weight %.
4. the preparation method according to any one in claim 1-3, wherein, in step 1) and 2) in, described high-speed stirring
Mix and meet following condition：Revolution speed is 15-35HZ, and autorotation speed is 1500-3500RPM, and the time of stirring is 10- every time
90min.
5. preparation method according to claim 4, wherein, in step 1) in, the interpolation number of times of described NMP is 2-3 time, and
And, the weight of the NMP adding every time is the 10-40% of NMP gross weight.
6. preparation method according to claim 4, wherein, in step 2) in, the interpolation number of times of described deionized water is 2-3
Secondary, and, the weight of each deionized water adding is the 10-40% of NMP gross weight.
7. the preparation method according to any one in claim 1-3,5-6, wherein, described Mg2+What doping ZnO coated changes
Property three raw materials be first pass through Li salt, Mg salt, Ni salt, Co salt, Mn salt, the preliminary sintering of oxalic acid form preroasting thing, then will
Zn salt and described preroasting thing are scattered in ethylene glycol, are dried, secondary clacining forms；
Preferably, preliminary sintering meets following condition：Calcining heat is 500-900 DEG C, and calcination time is 10-14h；Described secondary
Calcination: Calcination meets following condition：Calcining heat is 400-700 DEG C, and calcination time is 8-12h；
It is highly preferred that described preliminary sintering first calcines 4.5- from the 15-35 DEG C of ramp with 4-6 DEG C/min to 450-550 DEG C
5.5h, then with the ramp of 7-9 DEG C/min to 850-950 DEG C of calcining 6.5-7.5h；Described preliminary sintering is first from 15-35 DEG C
With the ramp of 3-5 DEG C/min to 350-450 DEG C of calcining 3.5-4.5h, then with the ramp of 6-8 DEG C/min to 650-
750 DEG C of calcining 5.5-6.5h.
8. preparation method according to claim 7, wherein, described Li salt, Mg salt, Ni salt, Co salt, the mol ratio of Mn salt are
10:0.25:5:2:3-10:1:5:2:3, described Zn salt is 1 with the mol ratio of described preroasting thing:10-1:100.
9. the preparation method according to any one in claim 1-3,5-6, wherein, ion doping type polypyrrole coats people
Making graphite is by being scattered in hydrochloric acid pyrroles with Delanium, being subsequently adding FeCl3Mixing, filter and take filtration cakes torrefaction and
Become；
Preferably, pyrroles and the mol ratio of Delanium are 1:200-1:20.
10. a kind of electric tool column lithium ion battery is it is characterised in that described electric tool column lithium ion electric
Pond is prepared by the preparation method described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911905.3A CN106410141A (en) | 2016-10-19 | 2016-10-19 | Cylindrical lithium ion battery for electric tool and preparation method of cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911905.3A CN106410141A (en) | 2016-10-19 | 2016-10-19 | Cylindrical lithium ion battery for electric tool and preparation method of cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410141A true CN106410141A (en) | 2017-02-15 |
Family
ID=58012641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911905.3A Pending CN106410141A (en) | 2016-10-19 | 2016-10-19 | Cylindrical lithium ion battery for electric tool and preparation method of cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410141A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835260A (en) * | 2005-03-17 | 2006-09-20 | 深圳市比克电池有限公司 | Anode slarry prepn. process of Li ion cell, anode sheet and Li ion cell |
| CN102255075A (en) * | 2011-05-04 | 2011-11-23 | 成都晶元新材料技术有限公司 | Method for manufacturing lithium ion battery sizing agent and battery |
| CN102738446A (en) * | 2011-04-15 | 2012-10-17 | 比克国际(天津)有限公司 | Lithium ion battery slurry, preparation method of the lithium ion battery slurry, and lithium ion battery |
| CN102956894A (en) * | 2012-10-31 | 2013-03-06 | 内蒙古三信实业有限公司 | Preparation method of lithium iron phosphate material anode sheet |
| CN103762379A (en) * | 2014-01-28 | 2014-04-30 | 泉州劲鑫电子有限公司 | High-capacity lithium ion battery and production process thereof |
| CN104577071A (en) * | 2015-01-28 | 2015-04-29 | 山东齐星新能源科技有限责任公司 | Dry-powder pulping method of lithium-ion battery |
| CN105161693A (en) * | 2015-10-27 | 2015-12-16 | 湖南桑顿新能源有限公司 | High-cycle lithium ion battery multi-element anode material NCM and preparation method thereof |
| CN105185986A (en) * | 2015-08-14 | 2015-12-23 | 江苏腾方新能源科技有限公司 | High-capacity cylindrical 18650 lithium-ion battery and preparation method thereof |
| CN105390699A (en) * | 2015-11-04 | 2016-03-09 | 宁德新能源科技有限公司 | Conductive material and lithium ion battery comprising same |
-
2016
- 2016-10-19 CN CN201610911905.3A patent/CN106410141A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835260A (en) * | 2005-03-17 | 2006-09-20 | 深圳市比克电池有限公司 | Anode slarry prepn. process of Li ion cell, anode sheet and Li ion cell |
| CN102738446A (en) * | 2011-04-15 | 2012-10-17 | 比克国际(天津)有限公司 | Lithium ion battery slurry, preparation method of the lithium ion battery slurry, and lithium ion battery |
| CN102255075A (en) * | 2011-05-04 | 2011-11-23 | 成都晶元新材料技术有限公司 | Method for manufacturing lithium ion battery sizing agent and battery |
| CN102956894A (en) * | 2012-10-31 | 2013-03-06 | 内蒙古三信实业有限公司 | Preparation method of lithium iron phosphate material anode sheet |
| CN103762379A (en) * | 2014-01-28 | 2014-04-30 | 泉州劲鑫电子有限公司 | High-capacity lithium ion battery and production process thereof |
| CN104577071A (en) * | 2015-01-28 | 2015-04-29 | 山东齐星新能源科技有限责任公司 | Dry-powder pulping method of lithium-ion battery |
| CN105185986A (en) * | 2015-08-14 | 2015-12-23 | 江苏腾方新能源科技有限公司 | High-capacity cylindrical 18650 lithium-ion battery and preparation method thereof |
| CN105161693A (en) * | 2015-10-27 | 2015-12-16 | 湖南桑顿新能源有限公司 | High-cycle lithium ion battery multi-element anode material NCM and preparation method thereof |
| CN105390699A (en) * | 2015-11-04 | 2016-03-09 | 宁德新能源科技有限公司 | Conductive material and lithium ion battery comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wu et al. | Investigations on high energy lithium-ion batteries with aqueous binder | |
| US10033041B2 (en) | Artificial SEI cathode material and lithium secondary battery comprising the same | |
| CN109755467A (en) | Electrode pole piece, electrochemical device and safety coating | |
| CN103794781A (en) | Lithium battery as well as preparation method thereof | |
| CN102479947B (en) | A kind of anode material for lithium-ion batteries and preparation method thereof and a kind of lithium ion battery | |
| CN102511094A (en) | Negative active material for lithium secondary battery and lithium secondary battery comprising same | |
| CN103891030B (en) | Nonaqueous electrolytic solution secondary battery and utilization thereof | |
| CN101901932A (en) | Quick-chargeable, high-security and high-multiplying-power battery and production method thereof | |
| CN105226234B (en) | Lithium battery anode composite piece, lithium battery composite negative plate and preparation method thereof, lithium battery | |
| CN105474449B (en) | Lithium secondary battery | |
| CN102646813A (en) | Manufacturing method of lithium titanate lithium ion battery | |
| CN104393234A (en) | Modified lithium ion battery composite positive pole material and preparation method thereof | |
| CN103682307A (en) | LiNi0.5Mn1.5O4/lithium titanate battery and preparation method thereof | |
| CN105977469A (en) | High-performance lithium titanate battery | |
| CN107507961A (en) | A kind of preparation method of conducting polymer modified anode slice of lithium ion battery | |
| KR101742427B1 (en) | Lithium ion secondary battery | |
| KR20160074386A (en) | Lithium ion secondary battery | |
| CN102738505A (en) | Lithium ion storage device | |
| CN105355923A (en) | Surface coated lithium ion battery cathode material, and preparation method thereof | |
| CN102623689A (en) | Manufacture process for lithium ion battery negative pulp adopting lithium titanate material | |
| CN105226325B (en) | A kind of lithium titanate battery electrolyte and lithium titanate battery | |
| CN102544507B (en) | Lithium ion power battery positive plate and lithium ion power battery | |
| CN107195965A (en) | A kind of polymer dielectric and lithium ion battery | |
| CN105098137A (en) | Lithium ion battery, and anode material and preparation method thereof | |
| JP2015176744A (en) | Method of manufacturing secondary battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |