CN106784855A - A kind of unmanned plane manufacture method of high temperature modification lithium ion battery - Google Patents
A kind of unmanned plane manufacture method of high temperature modification lithium ion battery Download PDFInfo
- Publication number
- CN106784855A CN106784855A CN201611094773.6A CN201611094773A CN106784855A CN 106784855 A CN106784855 A CN 106784855A CN 201611094773 A CN201611094773 A CN 201611094773A CN 106784855 A CN106784855 A CN 106784855A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- high temperature
- negative
- battery
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, the method is：First, anode sizing agent is prepared；2nd, cathode size is prepared；3rd, anode sizing agent is coated on plus plate current-collecting body；4th, cathode size is coated on negative current collector；5th, positive plate processed；6th, negative plate processed；7th, electrolyte is prepared；8th, assembling prepares lithium ion battery.Affluxion body in lithium ion batteries of the invention is using the aluminium foil/Copper Foil with loose structure, it is possible to decrease the internal resistance of cell, the multiplying power discharging property of lifting battery.Simultaneously; the battery uses high-temperature electrolyte; additive in electrolyte is 3; the additive package of the propionitrile of 3 sulfonyl two, vinylene carbonate and propylene sulfite composition; the diaphragm of fine and close stabilization can be formed on both positive and negative polarity surface, suppress electrolyte and interelectrode side reaction under high temperature, prevent battery bulging; so as to improve the hot properties of battery, the more difficult technical problem suitable for hot environment of lithium ion battery is solved.
Description
Technical field
The invention belongs to technical field of lithium-ion battery, and in particular to a kind of unmanned plane high temperature modification lithium ion battery
Manufacture method.
Background technology
With the development of science and technology, the raising of people's quality of life, electronic equipment becomes variation, high-power rechargeable electricity
The demand type in pond is also more extensive.The secondary chemical sources of electric energy that lithium ion battery is mutually converted as a kind of electric energy and chemical energy,
Be also called " rocking chair batteries ", its have high voltage, high-energy, have extended cycle life, the advantage such as environmentally friendly, by R＆D institution
With the concern of enterprise.
Used as a kind of New Energy Industry, lithium ion battery applications field also continues to develop expansion, such as mobile phone, digital camera,
The fields such as notebook computer, unmanned plane, startup power supply, electric automobile and energy-accumulating power station.In recent years, unmanned air vehicle technique is constantly created
Newly, lithium ion battery also obtains swift and violent development in this field.Compared to common batteries, the use work of the battery of unmanned plane
Condition and environment are increasingly complex, and most of is that this is just to unmanned machine battery in the larger no man's land environment of the severe, temperature difference
Environmental suitability proposes requirement higher.
At present, the regular picture temperature of existing lithium ion battery is at -20 DEG C~45 DEG C, once use temperature more than 45 DEG C
Degree, electrolyte and the electrode material of lithium ion battery will occur redox reaction, cause lithium ion battery internal resistance increase, capacity
Rapid decay, cycle life are shortened, and limit application of the lithium ion battery in unmanned plane field.Therefore, in order to expand lithium ion
Range of application of the battery in unmanned plane field, it is necessary to design one kind and can be applied to unmanned plane, and it is (more than 45 DEG C and small in high temperature
In equal to 60 DEG C) under the conditions of the still constant lithium ion battery product of cell discharge performance.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned the deficiencies in the prior art, there is provided a kind of unmanned plane is used
The manufacture method of high temperature modification lithium ion battery.The affluxion body in lithium ion batteries can be dropped using the aluminium foil/Copper Foil with loose structure
The multiplying power discharging property of the low internal resistance of cell, lifting battery.Meanwhile, the battery uses high-temperature electrolyte, the addition in electrolyte
Agent be the propionitrile of 3,3- sulfonyls two (, vinylene carbonate and propylene sulfite mix, can be formed on both positive and negative polarity surface and caused
Close, stabilization diaphragm, suppresses electrolyte and interelectrode side reaction under high temperature, battery bulging is prevented, so as to improve battery
Hot properties, solves the more difficult technical problem suitable for hot environment of lithium ion battery, and can apply to unmanned plane.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of unmanned plane high temperature modification lithium-ion electric
The manufacture method in pond, it is characterised in that the method is comprised the following steps：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；
Step 8, assembling：Obtained negative plate in obtained positive plate, barrier film and step 6 in step 5 is passed through into lamination
Mode be made battery core, in completing to reinstall after welding aluminum-plastic packaged shell, finally carry out mixing lithium salts described in note step 7 molten
Liquid is simultaneously sealed, obtain be -20 DEG C~60 DEG C in temperature under the conditions of the high temperature modification lithium ion battery that uses of regular picture.
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step one
Positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, and described adhesive is Kynoar,
The positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 83.0%~97.0%, graphite guide 0.5%~
5.0%th, super conductive carbon black 1.0%~5.0% and Kynoar 1.5%~7.0%, the solvent are N- dimethyl pyrroles
Alkanone, the addition of the N- dimethyl pyrrolidones is the 30%~55% of the anode sizing agent quality.
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that the cobalt acid lithium
Particle diameter distribution D50 is 5 μm~20 μm, tap density >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density
It is 3.5g/m3~4.2g/m3。
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 2
Negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 91.0%~96.0%, conductive agent 1.0%
~4.0%, adhesive 3.0%~5.0%, the negative electrode active material is Delanium, and the conductive agent is super conductive carbon
Black, described adhesive is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber；The solvent is water, and the addition of the water is
The 40%~60% of the cathode size quality.
A kind of above-mentioned unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that the Delanium
Particle diameter distribution D50 be 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/
m3~1.9g/m3。
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 3
The thickness of porous aluminium foil is 15 μm~80 μm, and aperture is 5 μm~35 μm, porosity 5%~30%；
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 4
The thickness of porous copper foil is 8 μm~40 μm, and aperture is 5 μm~20 μm, porosity 5%~35%.
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 7
Electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is 0.8mol/L~1.2mol/L in the mixing lithium salt solution.
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 7
Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 15%~65%, ethylene carbonate 5%
~40% and propene carbonate 10%~60%.
Above-mentioned a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that described in step 7
Additive is made up of the propionitrile of 3,3- sulfonyls two, vinylene carbonate and propylene sulfite, wherein 3, the 3- sulfonyls two
The addition of propionitrile is the 0.2%~20% of organic mixed solvent quality, and the addition of the vinylene carbonate is institute
The 0.5%~15% of organic mixed solvent quality is stated, the addition of the propylene sulfite is organic mixed solvent matter
The 2%~15% of amount.
The present invention has advantages below compared with prior art：
1. collector of the invention can reduce the internal resistance of unmanned machine battery from the aluminium foil and Copper Foil of loose structure, carry
Rise the multiplying power discharging property of battery.Additionally, electrode material is coated in porous current collector surface, it is firm to bond, and is difficult after circulation
Material, beneficial to the lifting of cycle performance of battery.
2nd, the present invention adds the propionitrile of 3,3- sulfonyls two, vinylene carbonate, propylene sulfite mixing in the electrolytic solution
Additive, improves the film forming ability on battery plus-negative plate surface, it is suppressed that the side reaction occurred between electrolyte and electrode under high temperature,
So as to improve the hot properties of battery, the high-temperature behavior and cyclical stability of battery are improved.
3rd, lithium ion battery prepared by the present invention can support 25C heavy-current discharges, and electric discharge ratio is higher than 90%.
4th, lithium ion battery prepared by the present invention can be stored at least 30 days under 60 DEG C of environment, and 2C fill/3C puts multiplying power
Circulation can add up to use more than 300 times.
5th, lithium ion battery prepared by the present invention can be applied to unmanned plane and can produce excellent effect, than existing lithium from
Sub- battery has longer flight time, moment peak power output higher and lower battery surface maximum temperature.
Technical scheme is described in further detail below by drawings and Examples.
Brief description of the drawings
Fig. 1 is the 25C rate discharge curves of lithium ion battery prepared by the embodiment of the present invention 1, comparative example 1 and comparative example 2.
Fig. 2 is 60 DEG C of high temperature 10C electric discharges of lithium ion battery prepared by the embodiment of the present invention 1, comparative example 1 and comparative example 2
Curve.
Fig. 3 is that the normal temperature 2C/3C multiplying powers of lithium ion battery prepared by the embodiment of the present invention 1, comparative example 1 and comparative example 2 are followed
Ring holds drop figure.
Specific embodiment
Embodiment 1
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 95%, graphite guide
1.5%th, super conductive carbon black 1.5% and Kynoar 2%, the solvent are N- dimethyl pyrrolidones, the N- diformazans
The addition of base pyrrolidones is the 40% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium is 5 μm~20 μ
M, tap density >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 93.5%, conductive agent
2.5%, adhesive 4%, the negative electrode active material is Delanium, and the conductive agent is super conductive carbon black, the bonding
Agent is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, and the sodium carboxymethylcellulose is 1 with the mass ratio of butadiene-styrene rubber：
1；The solvent is water, and the addition of the water is the 55% of the cathode size quality；The particle diameter distribution of the Delanium
D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~1.9g/
m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 20 μm, and aperture is
5 μm~10 μm, porosity 15%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 15 μm, and aperture is
5 μm~8 μm, porosity 20%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
1.0mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 45%, ethylene
Alkene ester 30% and propene carbonate 25%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid third
Alkene ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 1% of organic mixed solvent quality, the carbonic acid
The addition of vinylene is the 1.5% of organic mixed solvent quality, and the addition of the propylene sulfite is described
The 2% of organic mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Comparative example 1
Comparative example 1 is essentially identical with the process for preparing lithium ion battery of embodiment 1, and difference is, in system in step 7
During standby mixing lithium salt solution and it is not added with additive (propionitrile of 3,3- sulfonyl two, vinylene carbonate and sulfurous acid third
Alkene ester).
Comparative example 2
Comparative example 2 is essentially identical with the process for preparing lithium ion battery of comparative example 1, and difference is, described in step 3
The business aluminium foil that plus plate current-collecting body is produced using Foshan high-tech Aluminum Co., Ltd, the thickness of business aluminium foil is 15 μm, step 4
Described in negative current collector using Guangdong Jiayuan Technology Co., Ltd.'s production business Copper Foil, the thickness of business Copper Foil is 13 μm.
The associated batteries performance of testing example 1, comparative example 1 and lithium ion battery obtained in comparative example 2：
(1) 25C multiplying power discharging properties test
First at normal temperatures with 1C constant current charge-discharges 1 time (3.0V~4.2V), battery initial discharge capacity is recorded；Again with 1C
Constant-current constant-voltage charging after shelving 10min, with 25C constant-current discharges to 3.0V, records 25C multiplying power discharging capacity, embodiment to 4.2V
1st, the test result of comparative example 1 and lithium ion battery obtained in comparative example 2 is as shown in Figure 1.
(2) 60 DEG C of high temperature discharge performance tests
First at normal temperatures with 1C constant current charge-discharges 1 time (3.0V~4.2V), battery initial discharge capacity is recorded；Again with 1C
To 4.2V, the battery that will be filled with electricity is respectively put into constant temperature 24h in 60 DEG C of baking ovens to constant-current constant-voltage charging, then with 10C constant-current discharges
To 3.0V, high temperature discharge capacity during 60 DEG C of record battery, lithium ion battery prepared by embodiment 1 discharges in 60 DEG C of high temperature 10C
Test result is as shown in Figure 2.
(3) the battery high temperature storage test in 30 days under the conditions of 60 DEG C
First at normal temperatures with 1C constant current charge-discharges 1 time (3.0V~4.2V), battery initial discharge capacity is recorded；Again with 1C
Constant-current constant-voltage charging will be filled with being stored 30 days during electric battery is put into 60 DEG C of baking ovens to 4.2V, then take out battery, measure immediately
Cell thickness, measures voltage, internal resistance, and with 1C constant-current discharges to 3.0V, record the holding of battery after battery is cooled to room temperature
Capacity, recovery capacity, the internal resistance of cell and thickness change, the survey of embodiment 1, comparative example 1 and lithium ion battery obtained in comparative example 2
Test result is as shown in table 1.
Lithium ion battery prepared by the embodiment 1 of table 1, comparative example 1 and comparative example 2 is through 60 DEG C, 30 days high temperature storage test knots
Really
(4) normal temperature circulation performance test
Under 25 DEG C of normal temperature conditions, with 2C constant-current constant-voltage chargings to 4.2V, cut-off current is 0.03C, shelves 10min, then
With 3C constant-current discharges to 3.0V, charge and discharge cycles 300 weeks record discharge capacity, and embodiment 1, comparative example 1 and comparative example 2 are obtained
Lithium ion battery test result it is as shown in Figure 3.
Contrasted by 25C multiplying power dischargings, 60 DEG C of high temperature discharges, 60 DEG C of 30 days high temperature storages and circulation test result,
Reference picture 1, Fig. 2 and Fig. 3, and table 1 understand：Aluminium foil/the Copper Foil of loose structure is used in embodiment 1 as the positive pole collection of battery
Fluid and negative current collector, can reduce the internal resistance of unmanned plane lithium ion battery, hence it is evident that improve unmanned plane lithium-ion electric
The multiplying power discharging property in pond；And use and with the addition of the propionitrile of 3,3- sulfonyls two, vinylene carbonate and propylene sulfite three
After planting the high temperature modification lithium-ion battery electrolytes of additive, unmanned machine battery has excellent high temperature discharge and high temperature storage
Can, 5% is less than in 60 DEG C of storages, 30 days thickness swellings, more than 90%, capacity restoration rate is more than 95% for capability retention.
Applied after embodiment 1, comparative example 1 and lithium ion battery obtained in comparative example 2 are carried out into 2S1P (2 strings 1 are simultaneously) assembling
Practical flight test is carried out in unmanned plane, its test result is as shown in table 2.
Li-ion batteries piles prepared by the embodiment 1 of table 2, comparative example 1 and comparative example 2 are applied to unmanned plane winged test result in fact
As shown in Table 2, the actual flying time of lithium ion battery prepared by embodiment 1 is prepared considerably beyond comparative example 1,2
Lithium ion battery, and embodiment 1 prepare lithium ion battery moment peak power output than comparative example 1 and comparative example 2
The lithium ion battery of preparation it is big, and embodiment 1 prepare lithium ion battery surface maximum temperature be 48.8 DEG C, less than contrast
Lithium ion battery prepared by example 1 and comparative example 2, it follows that lithium ion battery applications prepared by embodiment 1 can in unmanned plane
Excellent using effect is produced, there is longer flight time, moment peak power output higher than existing lithium ion battery
Lower battery surface maximum temperature.
Embodiment 2
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 83%, graphite guide 5%,
Super conductive carbon black 5% and Kynoar 7%, the solvent are N- dimethyl pyrrolidones, the N- dimethyl pyrrolidines
The addition of ketone is the 30% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium be 5 μm~20 μm, vibration density
Degree >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 91%, conductive agent
4%, adhesive 5%, wherein the negative electrode active material is Delanium, the conductive agent is super conductive carbon black, described viscous
Mixture is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, and the sodium carboxymethylcellulose is with the mass ratio of butadiene-styrene rubber
1：1；The solvent is water, and the addition of the water is the 55% of the cathode size quality；The particle diameter of the Delanium point
Cloth D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~1.9g/
m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 15 μm, and aperture is
10 μm~20 μm, porosity 5%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 8 μm, and aperture is 8
μm~15 μm, porosity 5%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
0.8mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 15%, ethylene
Alkene ester 25% and propene carbonate 60%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid third
Alkene ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 5% of organic mixed solvent quality, the carbonic acid
The addition of vinylene is the 5% of organic mixed solvent quality, and the addition of the propylene sulfite has for described
The 5% of machine mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Embodiment 3
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 97%, graphite guide
0.5%th, super conductive carbon black 1% and Kynoar 7%, the solvent are N- dimethyl pyrrolidones, the N- dimethyl
The addition of pyrrolidones is the 30% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium is 5 μm~20 μm,
Tap density >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 96%, conductive agent
1%, adhesive 3%, wherein the negative electrode active material is Delanium, the conductive agent is super conductive carbon black, described viscous
Mixture is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, and the sodium carboxymethylcellulose is with the mass ratio of butadiene-styrene rubber
1：2；The solvent is water, and the addition of the water is the 55% of the cathode size quality；The particle diameter of the Delanium point
Cloth D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~1.9g/
m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 80 μm, and aperture is
20 μm~35 μm, porosity 30%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 40 μm, and aperture is
15 μm~20 μm, porosity 35%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
1.2mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 65%, ethylene
Alkene ester 5% and propene carbonate 30%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid propylene
Ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 0.2% of organic mixed solvent quality, the carbonic acid
The addition of vinylene is the 15% of organic mixed solvent quality, and the addition of the propylene sulfite has for described
The 15% of machine mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Embodiment 4
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 90%, graphite guide
2.5%th, super conductive carbon black 2.5% and Kynoar 5%, the solvent are N- dimethyl pyrrolidones, the N- diformazans
The addition of base pyrrolidones is the 45% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium is 5 μm~20 μ
M, tap density >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 93.5%, conductive agent
2%, adhesive 4.5%, wherein the negative electrode active material is Delanium, the conductive agent is super conductive carbon black, described
Adhesive is the mass ratio of the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, the sodium carboxymethylcellulose and butadiene-styrene rubber
It is 1：2；The solvent is water, and the addition of the water is the 50% of the cathode size quality；The particle diameter of the Delanium
Distribution D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~
1.9g/m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 60 μm, and aperture is
10 μm~15 μm, porosity 20%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 40 μm, and aperture is
5 μm~10 μm, porosity 25%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
1.0mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 20%, ethylene
Alkene ester 20% and propene carbonate 60%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid third
Alkene ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 20% of organic mixed solvent quality, the carbon
The addition of sour vinylene is the 0.5% of organic mixed solvent quality, and the addition of the propylene sulfite is institute
State the 2% of organic mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Embodiment 5
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 88%, graphite guide 3%,
Super conductive carbon black 3% and Kynoar 6%, the solvent are N- dimethyl pyrrolidones, the N- dimethyl pyrrolidines
The addition of ketone is the 50% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium be 5 μm~20 μm, vibration density
Degree >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 93%, conductive agent
3%, adhesive 4%, wherein the negative electrode active material is Delanium, the conductive agent is super conductive carbon black, described viscous
Mixture is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, and the sodium carboxymethylcellulose is with the mass ratio of butadiene-styrene rubber
1：1；The solvent is water, and the addition of the water is the 55% of the cathode size quality；The particle diameter of the Delanium point
Cloth D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~1.9g/
m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 45 μm, and aperture is
10 μm~20 μm, porosity 20%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 20 μm, and aperture is
10 μm~20 μm, porosity 30%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
1.0mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 30%, ethylene
Alkene ester 25% and propene carbonate 45%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid third
Alkene ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 10% of organic mixed solvent quality, the carbon
The addition of sour vinylene is the 10% of organic mixed solvent quality, and the addition of the propylene sulfite is described
The 10% of organic mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Embodiment 6
The present embodiment manufacture unmanned plane high temperature modification lithium ion battery method be：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to institute
State add in positive pole batch mixing stirring solvent it is uniform after be made anode sizing agent；
The positive active material is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, described adhesive
It is Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 91%, graphite guide 2%,
Super conductive carbon black 2% and Kynoar 5%, the solvent are N- dimethyl pyrrolidones, the N- dimethyl pyrrolidines
The addition of ketone is the 40% of the anode sizing agent quality；The particle diameter distribution D50 of the cobalt acid lithium be 5 μm~20 μm, vibration density
Degree >=2.2g/cm3, specific surface area is 0.4m2/ g~0.7m2/ g, compacted density is 3.5g/m3~4.2g/m3；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to institute
State add in negative pole batch mixing stirring solvent it is uniform after be made cathode size；
The negative pole batch mixing is mixed by the raw material of following mass percent：Negative electrode active material 94%, conductive agent
3%, adhesive 3%, wherein the negative electrode active material is Delanium, the conductive agent is super conductive carbon black, described viscous
Mixture is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber, and the sodium carboxymethylcellulose is with the mass ratio of butadiene-styrene rubber
1：1；The solvent is water, and the addition of the water is the 55% of the cathode size quality；The particle diameter of the Delanium point
Cloth D50 is 4 μm~25 μm, tap density >=1.2g/cm3, specific surface area≤2.5m2/ g, compacted density is 1.3g/m3~1.9g/
m3；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, equably apply
On the surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil to cloth；The thickness of the porous aluminium foil is 30 μm, and aperture is
5 μm~10 μm, porosity 15%；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, equably apply
On the surface of negative current collector, the negative current collector is porous copper foil to cloth；The thickness of the porous copper foil is 25 μm, and aperture is
5 μm~8 μm, porosity 20%.
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, chi needed for being obtained
Very little positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, chi needed for being obtained
Very little negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, it is configured to
Mixing lithium salt solution；The electrolyte lithium salt is lithium hexafluoro phosphate, and the concentration of lithium ion is in the mixing lithium salt solution
1.2mol/L；Organic mixed solvent is mixed by the component of following mass percent：Diethyl carbonate 50%, ethylene
Alkene ester 20% and propene carbonate 30%；The additive is by the propionitrile of 3,3- sulfonyls two, vinylene carbonate and sulfurous acid third
Alkene ester is constituted, wherein the addition of the propionitrile of 3,3- sulfonyls two is the 10% of organic mixed solvent quality, the carbon
The addition of sour vinylene is the 7% of organic mixed solvent quality, and the addition of the propylene sulfite is described
The 8% of organic mixed solvent quality.
Step 8, assembling：By positive plate described in step 5, negative plate described in step 6 and barrier film by " negative pole/every
The mode closed assembly of film/positive pole " lamination into battery core, the outer layer of folded battery core be negative plate, then by ultrasonic bonding mode, will
The positive pole foil lug of laminated cell is welded with aluminium pole ears, by the negative pole foil lug of laminated cell and copper nickel plating tab welding,
Reinstalled after completion welding in aluminum-plastic packaged shell, mixing lithium salts is molten described in implantation step seven after toasting 24 under conditions of 85 DEG C
Liquid is simultaneously sealed, and line precharge, the pumping of two envelopes, partial volume are entered to battery core, just obtains normally being put under the conditions of temperature is for -20 DEG C~60 DEG C
The high temperature modification lithium ion battery that electricity is used, its battery size is 803496SH25, and battery capacity is 2000mAh.
Associated high-temperature battery performance to lithium ion battery obtained in embodiment 2~6 is tested：
(1) 60 DEG C of high temperature discharge performance test
First at normal temperatures with 1C constant current charge-discharges 1 time (3.0V~4.2V), battery initial discharge capacity is recorded；Again with 1C
To 4.2V, the battery that will be filled with electricity is respectively put into constant temperature 24h in 60 DEG C of baking ovens to constant-current constant-voltage charging, then with 10C constant-current discharges
To 3.0V, high temperature discharge capacity during 60 DEG C of record battery, test result is as shown in table 3.
60 DEG C of high-temperature lithium ion battery prepared by 3 embodiment of table 2~6,10C rate discharge test results
The lithium ion battery prepared by embodiment 2~6, carries out testing 10C electric discharges after 60 DEG C of full electric high temperature stands 24h, by
Table 3 understands, the electric discharge ratio of lithium ion battery prepared by embodiment 2~6 more than 97.6%, the front and rear cell thickness of test and
In tolerance interval, performance is far superior to battery prepared by current conventional method to internal resistance rate of change.
(2) the battery high temperature storage test in 30 days under the conditions of 60 DEG C
First at normal temperatures with 1C constant current charge-discharges 1 time (3.0V~4.2V), battery initial discharge capacity is recorded；Again with 1C
Constant-current constant-voltage charging will be filled with being stored 30 days during electric battery is put into 60 DEG C of baking ovens to 4.2V, then take out battery, measure immediately
Cell thickness, measures voltage, internal resistance, and with 1C constant-current discharges to 3.0V, record the holding of battery after battery is cooled to room temperature
Capacity, recovery capacity, the internal resistance of cell and thickness change, experimental result are as shown in table 4.
Lithium ion battery prepared by 4 embodiment of table 2~6 is in 60 DEG C of high temperature, 30 days charged test results
The lithium ion battery prepared by embodiment 2~6, carries out testing battery capacity guarantor after 60 DEG C of full electric high temperature stands 30 days
Holdup and recovery rate, as shown in Table 4, the capability retention of lithium ion battery prepared by embodiment 2~6 is all higher than 92.6%, holds
Amount recovery rate is all higher than 98.1%, and the thickness and internal resistance rate of change of lithium ion battery are little before and after testing, and performance is but much excellent
In battery prepared by current conventional method.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain in.
Claims (10)
1. a kind of unmanned plane manufacture method of high temperature modification lithium ion battery, it is characterised in that the method is comprised the following steps：
Step one, with anode sizing agent：Positive active material, conductive agent and adhesive are mixed to form positive pole batch mixing, to it is described just
Anode sizing agent is made after addition stirring solvent is uniform in the batch mixing of pole；
Step 2, with cathode size：Negative electrode active material, conductive agent and adhesive are mixed to form negative pole batch mixing, to described negative
Cathode size is made after addition stirring solvent is uniform in the batch mixing of pole；
Step 3, anode sizing agent coating：By anode sizing agent described in step one by way of extrusion coated, it is uniformly coated to
The surface of plus plate current-collecting body, the plus plate current-collecting body is porous aluminium foil；
Step 4, cathode size coating：By cathode size described in step 2 by way of extrusion coated, it is uniformly coated to
The surface of negative current collector, the negative current collector is porous copper foil；
Step 5, positive plate processed：By plus plate current-collecting body described in step 3 by drying, roll-in, punching, size needed for being obtained
Positive plate；
Step 6, negative plate processed：By negative current collector described in step 4 by drying, roll-in, punching, size needed for being obtained
Negative plate；
Step 7, preparation electrolyte：During electrolyte lithium salt, additive equably dissolved in into organic mixed solvent, mixing is configured to
Lithium salt solution；
Step 8, assembling：The side that obtained negative plate in obtained positive plate, barrier film and step 6 in step 5 is passed through into lamination
Formula is made battery core, is reinstalled after completion welding in aluminum-plastic packaged shell, lithium salt solution is mixed described in last implantation step seven and is simultaneously sealed
Mouthful, obtain be -20 DEG C~60 DEG C in temperature under the conditions of the high temperature modification lithium ion battery that uses of regular picture.
2. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
Positive active material described in rapid one is cobalt acid lithium, and the conductive agent includes graphite and super conductive carbon black, and described adhesive is
Kynoar, the positive pole batch mixing is mixed by the raw material of following mass percent：Cobalt acid lithium 83.0%~97.0%, stone
Ink leads 0.5%~5.0%, super conductive carbon black 1.0%~5.0% and Kynoar 1.5%~7.0%；The solvent is
N- dimethyl pyrrolidones, the addition of the N- dimethyl pyrrolidones is the 30%~55% of the anode sizing agent quality.
3. a kind of unmanned plane according to claim 2 manufacture method of high temperature modification lithium ion battery, it is characterised in that institute
It is 5 μm~20 μm, tap density >=2.2g/cm to state the particle diameter distribution D50 of cobalt acid lithium3, specific surface area is 0.4m2/ g~0.7m2/
G, compacted density is 3.5g/m3~4.2g/m3。
4. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
Negative pole batch mixing is mixed by the raw material of following mass percent described in rapid two：Negative electrode active material 91.0%~96.0%,
Conductive agent 1.0%~4.0%, adhesive 3.0%~5.0%, the negative electrode active material is Delanium, and the conductive agent is
Super conductive carbon black, described adhesive is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber；The solvent is water, the water
Addition be the 40%~60% of the cathode size quality.
5. a kind of unmanned plane according to claim 4 manufacture method of high temperature modification lithium ion battery, it is characterised in that institute
It is 4 μm~25 μm, tap density >=1.2g/cm to state the particle diameter distribution D50 of Delanium3, specific surface area≤2.5m2/ g, is compacted close
It is 1.3g/m to spend3~1.9g/m3。
6. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
The thickness of porous aluminium foil described in rapid three is 15 μm~80 μm, and aperture is 5 μm~35 μm, porosity 5%~30%.
7. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
The thickness of porous copper foil described in rapid four is 8 μm~40 μm, and aperture is 5 μm~20 μm, porosity 5%~35%.
8. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
Electrolyte lithium salt described in rapid seven be lithium hexafluoro phosphate, in the mixing lithium salt solution concentration of lithium ion be 0.8mol/L~
1.2mol/L。
9. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that step
Organic mixed solvent is mixed by the component of following mass percent described in rapid seven：Diethyl carbonate 15%~65%, carbon
Vinyl acetate 5%~40% and propene carbonate 10%~60%.
10. a kind of unmanned plane according to claim 1 manufacture method of high temperature modification lithium ion battery, it is characterised in that
Additive described in step 7 is made up of the propionitrile of 3,3- sulfonyls two, vinylene carbonate and propylene sulfite, wherein described
The addition of the propionitrile of 3,3- sulfonyl two is the 0.2%~20% of organic mixed solvent quality, the vinylene carbonate
Addition be the 0.5%~15% of organic mixed solvent quality, the addition of the propylene sulfite has for described
The 2%~15% of machine mixed solvent quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094773.6A CN106784855A (en) | 2016-12-02 | 2016-12-02 | A kind of unmanned plane manufacture method of high temperature modification lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094773.6A CN106784855A (en) | 2016-12-02 | 2016-12-02 | A kind of unmanned plane manufacture method of high temperature modification lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784855A true CN106784855A (en) | 2017-05-31 |
Family
ID=58884548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611094773.6A Pending CN106784855A (en) | 2016-12-02 | 2016-12-02 | A kind of unmanned plane manufacture method of high temperature modification lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784855A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819105A (en) * | 2017-10-17 | 2018-03-20 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of silicon-carbon cathode pole piece |
| CN107819130A (en) * | 2017-09-18 | 2018-03-20 | 湖北猛狮新能源科技有限公司 | A kind of three-dimensional lithium ion battery and preparation method |
| CN108172890A (en) * | 2017-12-22 | 2018-06-15 | 成都市银隆新能源有限公司 | A kind of preparation method of battery and its pole piece |
| CN108281659A (en) * | 2018-01-18 | 2018-07-13 | 中国计量大学 | Sulphur anode and lithium-sulfur cell |
| CN110311138A (en) * | 2019-07-11 | 2019-10-08 | 安普瑞斯（无锡）有限公司 | A kind of lithium ion secondary battery with the dynamic defencive function of heat |
| CN111403799A (en) * | 2020-03-09 | 2020-07-10 | 广西华政新能源科技有限公司 | Special-shaped lithium battery and vehicle-mounted kettle |
| CN112751075A (en) * | 2019-10-31 | 2021-05-04 | 苏州微木智能系统有限公司 | Lithium ion battery and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11329409A (en) * | 1998-05-15 | 1999-11-30 | Nissan Motor Co Ltd | Lithium ion secondary battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN103904291A (en) * | 2012-12-28 | 2014-07-02 | 华为技术有限公司 | Aqueous lithium ion battery electrode, preparation method of electrode and aqueous lithium ion battery |
| CN104466171A (en) * | 2014-12-13 | 2015-03-25 | 西安瑟福能源科技有限公司 | Lithium ion battery for emergency start |
| CN104795583A (en) * | 2014-01-21 | 2015-07-22 | 北京好风光储能技术有限公司 | Novel lithium ion flow battery |
| CN105489841A (en) * | 2015-12-22 | 2016-04-13 | 中天储能科技有限公司 | Lithium pre-doping method for electrode plate of lithium-ion battery |
| CN205429069U (en) * | 2015-12-16 | 2016-08-03 | 孙美红 | Porous foil and use battery of this foil |
-
2016
- 2016-12-02 CN CN201611094773.6A patent/CN106784855A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11329409A (en) * | 1998-05-15 | 1999-11-30 | Nissan Motor Co Ltd | Lithium ion secondary battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN103904291A (en) * | 2012-12-28 | 2014-07-02 | 华为技术有限公司 | Aqueous lithium ion battery electrode, preparation method of electrode and aqueous lithium ion battery |
| CN104795583A (en) * | 2014-01-21 | 2015-07-22 | 北京好风光储能技术有限公司 | Novel lithium ion flow battery |
| CN104466171A (en) * | 2014-12-13 | 2015-03-25 | 西安瑟福能源科技有限公司 | Lithium ion battery for emergency start |
| CN205429069U (en) * | 2015-12-16 | 2016-08-03 | 孙美红 | Porous foil and use battery of this foil |
| CN105489841A (en) * | 2015-12-22 | 2016-04-13 | 中天储能科技有限公司 | Lithium pre-doping method for electrode plate of lithium-ion battery |
Non-Patent Citations (1)
| Title |
|---|
| 吴其胜: "《新能源材料》", 30 April 2012, 华东理工大学出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819130A (en) * | 2017-09-18 | 2018-03-20 | 湖北猛狮新能源科技有限公司 | A kind of three-dimensional lithium ion battery and preparation method |
| CN107819130B (en) * | 2017-09-18 | 2024-03-26 | 湖北猛狮新能源科技有限公司 | Three-dimensional lithium ion battery and preparation method thereof |
| CN107819105A (en) * | 2017-10-17 | 2018-03-20 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of silicon-carbon cathode pole piece |
| CN108172890A (en) * | 2017-12-22 | 2018-06-15 | 成都市银隆新能源有限公司 | A kind of preparation method of battery and its pole piece |
| CN108281659A (en) * | 2018-01-18 | 2018-07-13 | 中国计量大学 | Sulphur anode and lithium-sulfur cell |
| CN110311138A (en) * | 2019-07-11 | 2019-10-08 | 安普瑞斯（无锡）有限公司 | A kind of lithium ion secondary battery with the dynamic defencive function of heat |
| CN112751075A (en) * | 2019-10-31 | 2021-05-04 | 苏州微木智能系统有限公司 | Lithium ion battery and preparation method thereof |
| CN111403799A (en) * | 2020-03-09 | 2020-07-10 | 广西华政新能源科技有限公司 | Special-shaped lithium battery and vehicle-mounted kettle |
| CN111403799B (en) * | 2020-03-09 | 2022-03-18 | 广西华政新能源科技有限公司 | Special-shaped lithium battery and vehicle-mounted kettle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106784855A (en) | A kind of unmanned plane manufacture method of high temperature modification lithium ion battery | |
| CN104008893B (en) | The preparation method of lithium ion hybrid capacitors and lithium ion hybrid capacitors thereof | |
| CN107275553A (en) | A kind of polymer Li-ion battery and preparation method thereof | |
| CN108767310A (en) | A kind of lithium-ion battery electrolytes, lithium ion battery | |
| CN105336943A (en) | Lithium battery formed on basis of lithium nickel manganese oxide and lithium titanate and preparation method of lithium battery | |
| CN104600362A (en) | Power battery and lithium ion electrolyte thereof | |
| CN103367812B (en) | A kind of manufacture method of liquid flexible packing lithium ion electric core and battery core | |
| CN102623745B (en) | Lithium ion battery and anode and preparation method thereof | |
| CN109659496A (en) | A kind of lithium ion cell positive film and its preparation and application | |
| CN109817473A (en) | A kind of pre-embedding lithium method of lithium ion electrochemical energy storage device | |
| CN110444758A (en) | A kind of wide temperature range fast charging type lithium ion battery of high voltage and preparation method thereof | |
| CN106505194A (en) | Modified cobalt acid lithium and preparation method thereof, lithium ion battery and its chemical synthesizing method | |
| CN104466171B (en) | A kind of emergency starting lithium ion battery | |
| CN106602129B (en) | A kind of polyion battery and preparation method thereof | |
| CN103078138B (en) | high-voltage lithium ion battery and electrolyte thereof | |
| CN102082290A (en) | High-voltage high-energy-density lithium ion battery and manufacturing method thereof | |
| CN101212070A (en) | Laminated Li-ion secondary battery and method for producing the battery | |
| CN110190253A (en) | A kind of high-voltage lithium ion batteries | |
| CN108615955A (en) | A kind of chemical synthesizing method of ferric phosphate lithium cell | |
| CN110391414A (en) | A kind of high energy density polymer lithium ion battery and preparation method thereof | |
| CN105428636A (en) | Lithium ion battery anode material based on lithium titanate and preparation method thereof | |
| CN103346350A (en) | Electrolyte for improving performance of lithium ion battery and battery | |
| CN109768278A (en) | A kind of lithium ion battery | |
| CN105355903A (en) | Nickel lithium manganate-based positive electrode material of lithium ion battery and preparation method thereof | |
| CN108258301A (en) | A kind of excellent lithium ion battery of high temperature cyclic performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |