CN106058245A - Low temperature lithium ion battery - Google Patents
Low temperature lithium ion battery Download PDFInfo
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- CN106058245A CN106058245A CN201610650308.XA CN201610650308A CN106058245A CN 106058245 A CN106058245 A CN 106058245A CN 201610650308 A CN201610650308 A CN 201610650308A CN 106058245 A CN106058245 A CN 106058245A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—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
- H01M10/0569—Liquid materials characterised by the solvents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a low temperature lithium ion battery. The low temperature lithium ion battery comprises a positive electrode, a negative electrode and an electrolyte; a positive electrode active substance used by the positive electrode is a lithium iron manganese phosphate doped lithium nickel cobalt manganese oxide ternary material, wherein the mass percentage of lithium iron manganese phosphate in the positive electrode active substance is 5-30%; a negative electrode active substance used by the negative electrode is graphite or a carbon coated graphite material; and an organic solvent used by the electrolyte is an ethylene carbonate, ethyl methyl carbonate, diethyl carbonate and propylene carbonate mixed system, and the concentration of lithium ions in the electrolyte is 0.9-1.3 mol/L. The 0.3C discharge capacity retention rate of the assembled lithium ion battery at -20 DEG C can reach 80% or above, and the 0.3C discharge capacity retention rate of the assembled lithium ion battery at 0 DEG C can reach 92% or above; and the low temperature lithium ion battery has good safety performance, rate performance and cycle performances, has greatly improved discharge ability in low temperature environment, and is suitable for working in low temperature and other bad environments.
Description
Technical field
The invention belongs to technical field of lithium ion, be specifically related to a kind of low-temperature lithium ion battery.
Background technology
In recent years, along with the development of lithium ion battery is increasingly mature, its range is more and more extensive, and the use of battery
Environment is relative complex changeable, therefore the highest to the performance requirement of lithium ion battery.In the environment of relative temperature is relatively low in the winter time,
At-20 DEG C even lower at a temperature of, use equipment needs lithium ion battery normally to work.At present, lithium-ions battery
Cryogenic property the most overproof, particularly in the low temperature environment below 0 DEG C, the charging performance of power lithium-ion battery becomes different
Often difficulty (precipitation of Li dendrite, inside battery may be short-circuit), the discharge performance of battery is the most significantly decayed, follow-up electrification
Learning performance to be all greatly reduced, therefore vehicle lithium ion battery becomes urgently at the use research of cold district.Existing lithium
Ion battery charges at low temperatures or runs, and i.e. battery is under the conditions of low temperature environment discharge and recharge, and the internal resistance of battery strengthens, electric discharge electricity
Flattening bench reduces, and can dischargeable capacity reduce, and the efficiency for charge-discharge of battery substantially reduces, and battery itself is had certain infringement.
At present, domestic market electrokinetic cell is mainly ferric phosphate lithium cell, but the cryogenic property of LiFePO4 is it to be made
For the bottleneck in terms of electrokinetic cell, LiFePO4 intrinsic conductivity is low, significantly limit its dynamics at low temperatures,
And the energy density of ferric phosphate lithium cell is relatively low, it is difficult to obtain breakthrough on capacity plays.Nickel-cobalt-manganese ternary material
Theoretical gram volume be 278mAh/g, running voltage is 3.65V, and therefore the specific energy of nickel-cobalt-manganese ternary lithium ion battery can do
To 180Wh/Kg, application potential is bigger.At special-purpose vehicle field (such as logistic car and sanitation cart), need specific energy high ternary electricity
Pond is the most supporting；In passenger car field, to vehicle space and the requirement of mileages of continuation, determine the ternary battery of high-energy-density
It it is the direction of future development.
In prior art, nickle cobalt lithium manganate/iron manganese phosphate for lithium that CN105529458A discloses a kind of lithium ion battery is multiple
Closing the preparation method of positive electrode, it is uniformly to be composited at nickel-cobalt-manganese ternary material surface, first by nickel by iron manganese phosphate for lithium
Cobalt-manganese ternary material is placed in the solution containing-COOH or-OH and disperses；Iron manganese phosphate for lithium is placed in the solution containing-OH or-COOH
Dispersion；By two solution mixing, and add esterification catalyst and carry out esterification, obtain nickle cobalt lithium manganate/iron manganese phosphate for lithium compound just
Pole material.Wherein, the molecular formula of nickel-cobalt-manganese ternary material is Li (NiaCobMn1-a-b)O2, wherein a < 1, b < 1, a+b < 1；Described phosphorus
The molecular formula of acid ferromanganese lithium can be LiMnyFe1-yPO4, 0.4≤y < 1 in formula.The method makes two kinds of materials by the way of chemical bond
It is the most compound that material connects realization, significantly increases the safety of ternary material on the premise of the high-energy-density ensureing ternary material
Performance；But the above-mentioned nickle cobalt lithium manganate/iron manganese phosphate for lithium composite positive pole lithium as positive active material is not disclosed
The cryogenic property of ion battery.
Therefore, be designed positive pole, negative pole and the electrolyte of lithium ion battery optimizing, thus research and develop one can be low
The design making the chemical property of lithium ion battery get a promotion under the conditions of temperature, is to solve lithium ion battery cryogenic property to lack
The important channel fallen into.
Summary of the invention
It is an object of the invention to provide a kind of low-temperature lithium ion battery, possess the discharge performance of excellence under cryogenic.
In order to realize object above, the technical solution adopted in the present invention is:
A kind of low-temperature lithium ion battery, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein manganese phosphate
Ferrum lithium doping mass percent in positive active material is 5%～30%；
Negative electrode active material used by negative pole is graphite or carbon coated graphite material；
Organic solvent used by electrolyte be ethylene carbonate (EC), Ethyl methyl carbonate (EMC), diethyl carbonate (DEC),
The mixed system of Allyl carbonate (PC), in electrolyte, the concentration of lithium ion is 0.9～1.3mol/L.
In described positive active material, cobalt nickel lithium manganate ternary material is LiNiaMnbCo1-a-bO2, wherein 0.3 < a < 0.8,
0.1 <b < 0.4, a+b < 1；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein 0.7 < x < 0.9.Preferably, x=0.8.
In described positive active material, the gram volume of nickel-cobalt lithium manganate material > 145mAh/g；Iron manganese phosphate lithium material gram
Capacity > 135mAh/g.
In negative electrode active material used by negative pole, graphite used or the graphite material being wrapped by are Delanium.
Preferably, described negative electrode active material is second particle Delanium or carbon cladding second particle Delanium material
Material.Described second particle Delanium, is the second particle bonding by primary particle graphite.
The median particle diameter D50 of described negative electrode active material is 13～23 μm.
In described carbon cladding second particle artificial graphite material, surface coated material with carbon element is amorphous carbon material.Described
Amorphous carbon material is soft material with carbon element or hard carbon material.
Organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate 20%～40%,
Ethyl methyl carbonate 40%～60%, diethyl carbonate 10%～30%, Allyl carbonate 5%～10%.
Lithium salts used by electrolyte is at least one in lithium hexafluoro phosphate, LiBF4, di-oxalate lithium borate.
The preparation method of the low-temperature lithium ion battery of the present invention, is to be made respectively according to this area conventional method by above-mentioned material
Standby positive pole, negative pole and electrolyte, be then assembled into lithium ion battery.
The low-temperature lithium ion battery of the present invention, with the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping as positive-active
Material, with graphite or carbon coated graphite material as negative electrode active material, with ethylene carbonate, Ethyl methyl carbonate, diethyl carbonate,
The mixed system of Allyl carbonate is the organic solvent of electrolyte, the lithium ion battery being assembled into 0.3C under the conditions of-20 DEG C
Discharge capacitance can reach more than 80%, and under the conditions of 0 DEG C, 0.3C discharge capacitance is more than 92%；With existing skill
Art is compared, and possesses good security performance, high rate performance and cycle performance, the especially discharge capability under low temperature environment and obtains
Promote greatly；This low-temperature lithium ion battery normally can use under conventional environment, is particularly suitable in adverse circumstances such as low temperature
Lower work.
Accompanying drawing explanation
Fig. 1 is the low-temperature lithium ion battery of present invention 0.3C low temperature discharge curve chart under the conditions of-20 DEG C；
Fig. 2 is 300 weeks cycle performance testing results that the low-temperature lithium ion battery of the present invention discharges at room temperature 1C charging/1C
Schematic diagram.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
In detailed description of the invention, the gram volume of nickel-cobalt lithium manganate material used > 145mAh/g；Iron manganese phosphate lithium material
Gram volume > 133mAh/g.
In detailed description of the invention, the used FT-1 that second particle Delanium is Jiangxi Zi Chen Science and Technology Ltd.；Carbon
Cladding second particle Delanium is the GT or the QCG-X of Shanghai Shanshan Science and Technology Co., Ltd of Jiangxi Zi Chen Science and Technology Ltd..
Embodiment 1
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.8；Iron manganese phosphate for lithium doping mass percent in positive active material is 10%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
136mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 20.5 μm, gram
Capacity plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 25%, Ethyl methyl carbonate (EMC) 50%, diethyl carbonate (DEC) 20%, Allyl carbonate (PC) 5%.Lithium in electrolyte
The concentration of ion is 1.2mol/L, and lithium salts used is lithium hexafluoro phosphate.
The preparation method of the low-temperature lithium ion battery of the present embodiment is:
The preparation of anode sizing agent: binding agent Kynoar (PVDF) is scattered in N-Methyl pyrrolidone (NMP), treats
PVDF fully dissolves standing froth breaking, is subsequently adding conductive agent white carbon black (SP), after being uniformly dispersed, adds positive active material, mixing
Becoming anode sizing agent, viscosity is 6000-8000mpa.s-1；
The preparation of cathode size: sodium carboxymethyl cellulose (CMC) is dissolved in deionized water, is subsequently adding conductive agent charcoal
Black (SP), after being uniformly dispersed, adds negative electrode active material, adjustment slurry viscosity to 2500mpa.s-1After, add binding agent fourth
Benzene rubber (SBR), is prepared as cathode size；
Coated for above-mentioned slurry, dry, roll process are prepared positive plate, negative plate respectively, by gained positive plate, negative pole
Sheet uses Z-shaped lamination process to be prepared as required size battery, the monolayer PP barrier film using barrier film to be thickness 20 μm, after through entering
The operations such as shell, baking, fluid injection, chemical conversion, partial volume are fabricated to the battery that capacity is 5Ah, obtain low-temperature lithium ion battery.
Embodiment 2
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.8；Iron manganese phosphate for lithium doping mass percent in positive active material is 25%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
136mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 20.5 μm, gram
Capacity plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 25%, Ethyl methyl carbonate (EMC) 50%, diethyl carbonate (DEC) 20%, Allyl carbonate (PC) 5%.Lithium in electrolyte
The concentration of ion is 1.2mol/L, and lithium salts used is lithium hexafluoro phosphate..
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Embodiment 3
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.8；Iron manganese phosphate for lithium doping mass percent in positive active material is 20%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
136mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 20.5 μm, gram
Capacity plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 25%, Ethyl methyl carbonate (EMC) 50%, diethyl carbonate (DEC) 20%, Allyl carbonate (PC) 5%.Lithium in electrolyte
The concentration of ion is 1.2mol/L, and lithium salts used is lithium hexafluoro phosphate..
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Embodiment 4
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.8；Iron manganese phosphate for lithium doping mass percent in positive active material is 20%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
136mAh/g；
Negative electrode active material used by negative pole is second particle Delanium, and median particle diameter D50 is 15.5 μm, and gram volume is sent out
Wave: 340mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 25%, Ethyl methyl carbonate (EMC) 50%, diethyl carbonate (DEC) 20%, Allyl carbonate (PC) 5%.Lithium in electrolyte
The concentration of ion is 1.2mol/L, and lithium salts used is lithium hexafluoro phosphate..
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Embodiment 5
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.8；Iron manganese phosphate for lithium doping mass percent in positive active material is 5%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
136mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 15 μm, gram appearance
Amount plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 40%, Ethyl methyl carbonate (EMC) 40%, diethyl carbonate (DEC) 10%, Allyl carbonate (PC) 10%.In electrolyte
The concentration of lithium ion is 0.9mol/L, and lithium salts used is lithium hexafluoro phosphate..
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Embodiment 6
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 1/3, and b is 1/3；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.9；Iron manganese phosphate for lithium doping mass percent in positive active material is 30%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 145mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
138mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 23 μm, gram appearance
Amount plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 20%, Ethyl methyl carbonate (EMC) 60%, diethyl carbonate (DEC) 12%, Allyl carbonate (PC) 8%.Lithium in electrolyte
The concentration of ion is 1.3mol/L, and lithium salts used is lithium hexafluoro phosphate.
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Embodiment 7
The low-temperature lithium ion battery of the present embodiment, including positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein a is 0.5, and b is 0.2；Iron manganese phosphate for lithium is LiMnXFe1-XPO4, wherein x
It is 0.7；Iron manganese phosphate for lithium doping mass percent in positive active material is 15%, and remaining is nickle cobalt lithium manganate ternary material
Material；The gram volume of nickel-cobalt lithium manganate material plays: 150mAh/g；The gram volume of iron manganese phosphate lithium material used plays:
134mAh/g；
Negative electrode active material used by negative pole is that carbon is coated with second particle Delanium, and median particle diameter D50 is 18 μm, gram appearance
Amount plays: 350mAh/g；
The mixed system that organic solvent used by electrolyte is made up of the component of following mass percent: ethylene carbonate
(EC) 20%, Ethyl methyl carbonate (EMC) 40%, diethyl carbonate (DEC) 30%, Allyl carbonate (PC) 10%.In electrolyte
The concentration of lithium ion is 1.1mol/L, and lithium salts used is lithium hexafluoro phosphate.
Above-mentioned material is fabricated to the laminated batteries that capacity is 5Ah, and (preparation method is with the low-temperature lithium ion battery of embodiment 1
Preparation method), obtain low-temperature lithium ion battery.
Experimental example
Embodiment 1-7 gained low-temperature lithium ion battery is carried out following performance test, tests it under different temperatures environment
Discharge performance: 0.5C carries out discharge and recharge 3 times the most at normal temperatures, records constant volume discharge capacity, then with battery fully charged for 0.5C
It is respectively put into-20 DEG C, 0 DEG C, constant temperature 24h in 55 DEG C of high-low temperature chambers, is then discharged to 3.0V with 0.3C, records discharge capacity.Should
After experiment terminates, battery is taken out and shelves 2h at normal temperatures, then range estimation battery core outward appearance.Test result is shown in Table 1.
Embodiment 1-7 gained low-temperature lithium ion battery 0.3C low temperature discharge curve under the conditions of-20 DEG C as it is shown in figure 1,
Its room temperature 1C charging/1C electric discharge 300 weeks cycle performance testing results as shown in Figure 2.
Table 1 embodiment gained low-temperature lithium ion battery Discharge test at different temperatures
From table 1 and Fig. 1,2 it can be seen that the 0.3C electric discharge under the conditions of-20 DEG C of the low-temperature lithium ion battery of the present invention is held
Amount conservation rate can reach more than 80%, and under the conditions of 0 DEG C, 0.3C discharge capacitance is more than 92%；With prior art phase
Ratio, possesses good security performance, high rate performance and cycle performance, the especially discharge capability under low temperature environment and obtains greatly
Lifting.
Claims (7)
1. a low-temperature lithium ion battery, it is characterised in that: include positive pole, negative pole and electrolyte；
Positive active material used by positive pole is the cobalt nickel lithium manganate ternary material of iron manganese phosphate lithium doping, wherein iron manganese phosphate for lithium
Doping mass percent in positive active material is 5%～30%；
Negative electrode active material used by negative pole is graphite or carbon coated graphite material；
Organic solvent used by electrolyte is the mixture of ethylene carbonate, Ethyl methyl carbonate, diethyl carbonate, Allyl carbonate
System, in electrolyte, the concentration of lithium ion is 0.9～1.3mol/L.
Low-temperature lithium ion battery the most according to claim 1, it is characterised in that: in described positive active material, nickel cobalt manganese
Acid lithium ternary material is LiNiaMnbCo1-a-bO2, wherein 0.3 < a < 0.8,0.1 <b < 0.4, a+b < 1；Iron manganese phosphate for lithium is
LiMnXFe1-XPO4, wherein 0.7 < x < 0.9.
Low-temperature lithium ion battery the most according to claim 1, it is characterised in that: described negative electrode active material is second particle
Delanium or carbon cladding second particle artificial graphite material.
Low-temperature lithium ion battery the most according to claim 3, it is characterised in that: the median particle diameter of described negative electrode active material
D50 is 13～23 μm.
Low-temperature lithium ion battery the most according to claim 3, it is characterised in that: described carbon cladding second particle Delanium
In material, surface coated material with carbon element is amorphous carbon material.
Low-temperature lithium ion battery the most according to claim 1, it is characterised in that: the organic solvent used by electrolyte is by following
The component composition of mass percent: ethylene carbonate 20%～40%, Ethyl methyl carbonate 40%～60%, diethyl carbonate 10%
～30%, Allyl carbonate 5%～10%.
7. according to the low-temperature lithium ion battery described in claim 1 or 6, it is characterised in that: lithium salts used by electrolyte is hexafluoro phosphorus
At least one in acid lithium, LiBF4, di-oxalate lithium borate.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106410144A (en) * | 2016-11-02 | 2017-02-15 | 天津市捷威动力工业有限公司 | Lithium ion battery capable of improving low-temperature charging performance |
| CN106784646A (en) * | 2016-11-21 | 2017-05-31 | 深圳市锐拓新源科技有限公司 | A kind of preparation method of composite positive pole |
| CN107946646A (en) * | 2017-04-14 | 2018-04-20 | 云南锡业集团（控股）有限责任公司 | A kind of square low-temperature lithium ion battery and preparation method thereof |
| CN108306015A (en) * | 2018-01-31 | 2018-07-20 | 北京国能电池科技股份有限公司 | Ternary active material, positive electrode, positive plate and preparation method thereof, lithium ion battery and preparation method thereof |
| CN109244339A (en) * | 2018-08-24 | 2019-01-18 | 台州钱江新能源研究院有限公司 | A kind of ternary lithium ion battery of high safety high-energy density |
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| CN110635133A (en) * | 2019-08-30 | 2019-12-31 | 东莞赣锋电子有限公司 | Quick-charging type lithium ion battery and preparation method thereof |
| CN110739485A (en) * | 2019-10-30 | 2020-01-31 | 东莞维科电池有限公司 | low-temperature lithium ion batteries |
| CN113363431A (en) * | 2021-03-31 | 2021-09-07 | 万向一二三股份公司 | Doped modified cathode material with high stability of ion channel |
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| US11228028B2 (en) | 2017-12-27 | 2022-01-18 | Industrial Technology Research Institute | Cathode of lithium ion battery |
| CN115148983A (en) * | 2022-09-01 | 2022-10-04 | 蜂巢能源科技股份有限公司 | Lithium ion battery |
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| CN116404236A (en) * | 2023-05-26 | 2023-07-07 | 中南大学 | Niobium-based low-temperature lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325991A (en) * | 2013-05-31 | 2013-09-25 | 余玉英 | Total temperature-range lithium ion battery |
| US20150125751A1 (en) * | 2011-03-18 | 2015-05-07 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing lithium-containing composite oxide |
| CN104779413A (en) * | 2015-04-09 | 2015-07-15 | 深圳市美拜电子有限公司 | Lithium ion battery |
| CN105810899A (en) * | 2016-03-10 | 2016-07-27 | 中国科学院宁波材料技术与工程研究所 | Lithium ion battery |
-
2016
- 2016-08-09 CN CN201610650308.XA patent/CN106058245B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150125751A1 (en) * | 2011-03-18 | 2015-05-07 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing lithium-containing composite oxide |
| CN103325991A (en) * | 2013-05-31 | 2013-09-25 | 余玉英 | Total temperature-range lithium ion battery |
| CN104779413A (en) * | 2015-04-09 | 2015-07-15 | 深圳市美拜电子有限公司 | Lithium ion battery |
| CN105810899A (en) * | 2016-03-10 | 2016-07-27 | 中国科学院宁波材料技术与工程研究所 | Lithium ion battery |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410144A (en) * | 2016-11-02 | 2017-02-15 | 天津市捷威动力工业有限公司 | Lithium ion battery capable of improving low-temperature charging performance |
| CN106784646A (en) * | 2016-11-21 | 2017-05-31 | 深圳市锐拓新源科技有限公司 | A kind of preparation method of composite positive pole |
| CN107946646A (en) * | 2017-04-14 | 2018-04-20 | 云南锡业集团（控股）有限责任公司 | A kind of square low-temperature lithium ion battery and preparation method thereof |
| US11228028B2 (en) | 2017-12-27 | 2022-01-18 | Industrial Technology Research Institute | Cathode of lithium ion battery |
| CN108306015A (en) * | 2018-01-31 | 2018-07-20 | 北京国能电池科技股份有限公司 | Ternary active material, positive electrode, positive plate and preparation method thereof, lithium ion battery and preparation method thereof |
| CN109244339A (en) * | 2018-08-24 | 2019-01-18 | 台州钱江新能源研究院有限公司 | A kind of ternary lithium ion battery of high safety high-energy density |
| CN109256581A (en) * | 2018-10-23 | 2019-01-22 | 深圳市倍特力电池有限公司 | High-energy density super-low-temperature lithium-ion cell and negative electrode tab |
| CN110635133B (en) * | 2019-08-30 | 2021-08-06 | 东莞赣锋电子有限公司 | Quick-charging type lithium ion battery and preparation method thereof |
| CN110635133A (en) * | 2019-08-30 | 2019-12-31 | 东莞赣锋电子有限公司 | Quick-charging type lithium ion battery and preparation method thereof |
| CN110739485A (en) * | 2019-10-30 | 2020-01-31 | 东莞维科电池有限公司 | low-temperature lithium ion batteries |
| CN113363431A (en) * | 2021-03-31 | 2021-09-07 | 万向一二三股份公司 | Doped modified cathode material with high stability of ion channel |
| CN113363416A (en) * | 2021-03-31 | 2021-09-07 | 万向一二三股份公司 | High-cycle-performance doped ternary lithium ion battery |
| WO2022205831A1 (en) * | 2021-03-31 | 2022-10-06 | 万向一二三股份公司 | Doped modified positive electrode material with high ion channel stability |
| CN115148983A (en) * | 2022-09-01 | 2022-10-04 | 蜂巢能源科技股份有限公司 | Lithium ion battery |
| CN116259846A (en) * | 2023-04-11 | 2023-06-13 | 湖北亿纬动力有限公司 | Lithium ion battery electrolyte and lithium ion battery |
| CN116404236A (en) * | 2023-05-26 | 2023-07-07 | 中南大学 | Niobium-based low-temperature lithium ion battery |
| CN116404236B (en) * | 2023-05-26 | 2024-03-19 | 中南大学 | Niobium-based low-temperature lithium ion battery |
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