CN103682307A - LiNi0.5Mn1.5O4/lithium titanate battery and preparation method thereof - Google Patents

LiNi0.5Mn1.5O4/lithium titanate battery and preparation method thereof Download PDF

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CN103682307A
CN103682307A CN201310607712.5A CN201310607712A CN103682307A CN 103682307 A CN103682307 A CN 103682307A CN 201310607712 A CN201310607712 A CN 201310607712A CN 103682307 A CN103682307 A CN 103682307A
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lithium titanate
nickel limn2o4
pvdf
mass ratio
titanate battery
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CN103682307B (en
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关成善
宗继月
张敬捧
王勇
郭章飞
殷昊曦
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Shandong Goldencell Electronics Technology Co Ltd
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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
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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

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  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The invention discloses a LiNi0.5Mn1.5O4/lithium titanate battery and a preparation method thereof, and the battery has not only relatively high energy density but also favorable cycle performance, safety performance and quick charging and low-temperature charging capabilities. The technical scheme is that the mass ratio of anode slurry is that LiNi0.5Mn1.5O4: conductive carbon Super-p: conductive carbon KS-15: binder PVDF=95:1:1:3, and the solvent is NMP; the mass ratio of cathode slurry is (Li4Ti5O12): conductive carbon Super-p: conductive carbon KS-15: binder PVDF=91:3:2:4, and the solvent os NMP. The invention has the advantages that as lithium titanate which is a zero-strain material and has low probability of generating lithium dendrites serves as the cathode active substance of the battery, the battery has better safety performance, rate performance, low-temperature performance and cycle performance.

Description

Nickel LiMn2O4/lithium titanate battery and preparation method thereof
Technical field
The invention belongs to technical field of lithium ion, relate to a kind of nickel LiMn2O4/lithium titanate battery preparation method.
Background technology
At present, the continuous lifting to new forms of energy demand along with scientific and technological progress and the mankind, performance of lithium ion battery is also in continuous progress, especially now new-energy automobile proposes higher requirement to lithium ion battery, realize it and require the most basic will to solve its safety problem, also need in addition to improve its low temperature and quick charge capability.Also there are some drawbacks in business-like graphite cathode lithium ion battery, as easily forms Li dendrite while overcharging, and causes battery short circuit, affects the security performance of battery; Easily form SEI film and cause first charge-discharge efficiency low, irreversible capacity is large; Material with carbon element platform is lower, easily causes and electrolyte decomposition causes potential safety hazard etc.Lithium titanate is zero strain material, electromotive force is higher, be difficult for producing lithium Zhi Jing, security performance is better, quick charge and low temperature charging ability are stronger, but because its electromotive force is higher, the anodal system battery nominal voltages such as LiFePO4, ternary, LiMn2O4 are on the low side, only have 2.0V ~ 2.5V, respective battery energy density is on the low side.If it is anodal to use zero strain material of lithium titanate to mate a kind of high potential, when making it have higher energy density, there is good cycle performance, security performance, quick charge and low temperature charging ability, will certainly promote lithium ion battery in the development of automotive field.
Summary of the invention
The object of this invention is to provide a kind of nickel LiMn2O4/lithium titanate battery and preparation method thereof ,battery is taken into account and when thering is higher energy density, there is good cycle performance, security performance, quick charge and low temperature charging ability.
A kind of nickel LiMn2O4/lithium titanate battery, comprise positive plate, negative plate, electrolyte, described positive plate comprises positive pole aluminium foil collector and is coated in its surperficial anode sizing agent coating, and described negative plate comprises negative pole aluminum foil current collector and is coated in surperficial cathode size coating, it is characterized in that
Anode and cathode slurry coating comprises following material:
Anode sizing agent quality proportioning is pressed nickel LiMn2O4 (LiNi 0.5mn 1.5o 4): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF(Kynoar)=95:1:1:3, solvent is NMP(N – methyl pyrrolidone), anodal solid content 60% ~ 65%;
Cathode size quality proportioning is pressed lithium titanate (Li 4ti 5o 12): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF=91:3:2:4, solvent is NMP, negative pole solid content 40% ~ 45%.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, described electrolyte is for adding the conventional carbonate solvent system 5V high-voltage electrolyte of anti-flatulence additive.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, anode sizing agent coating one side surface density is 180 ~ 200g/m 2, compacted density 3.45 ~ 3.55g/cm 3.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, cathode size coating one side surface density is 198 ~ 220g/m 2, compacted density 1.60 ~ 1.70g/cm 3.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, described positive slurry coating and cathode size coat side density ratio are 1:1.1.
Preparation method according to described nickel LiMn2O4/lithium titanate battery, is characterized in that,
Anode sizing agent production stage:
1) by PVDF and NMP in mass ratio 30:613 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 2h, the amount adding is Super-P:KS-15:PVDF=1:1:3 in mass ratio,
3) add nickel LiMn2O4 to continue to stir 2h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=95:3,
4) finally cross 150 mesh sieve dischargings;
Negative pole slurrying production stage:
1) by PVDF and NMP in mass ratio 4:150 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 3h, the amount adding is Super-P:KS-15:PVDF=3:2:4 in mass ratio,
3) add lithium titanate to continue to stir 4h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=91:4,
4) finally cross 150 mesh sieve dischargings.
Preparation method according to described nickel LiMn2O4/lithium titanate battery, is characterized in that, above-mentioned each reinforced stirring is high-speed stirred after first stirring at low speed, and above-mentioned mixing time all represents the high-speed stirred time.
Preparation method according to described nickel LiMn2O4/lithium titanate battery, is characterized in that, planetary mixer stirring at low speed revolution rotating speed 15 ± 1r/min, rotation rotating speed 500 ± 50r/min, high-speed stirred revolution rotating speed 25 ± 1r/min, rotation rotating speed 2200 ± 50r/min.
Advantage of the present invention and effect are: 1. the present invention uses lithium titanate as the negative electrode active material of battery, and lithium titanate is zero strain material, are difficult for producing lithium Zhi Jing, and battery has better security performance, high rate performance, cryogenic property and cycle performance.
2. the present invention uses nickel LiMn2O4 as battery positive electrode active material, makes lithium titanate anode cell voltage can reach 3.0V, has improved the energy density of lithium titanate anode battery.
3. the present invention uses the conventional carbonate solvent 5V high-voltage electrolyte that adds anti-flatulence additive, and anti-flatulence additive can effectively reduce the flatulence of battery, improves the combination property of battery.
Accompanying drawing explanation
Fig. 1 is battery 0.2C discharge curve,
Fig. 2 is battery 1C charge and discharge cycles curve.
Embodiment
With regard to specific embodiment, the invention will be further described below:
A kind of nickel LiMn2O4/lithium titanate battery, comprise positive plate, negative plate, electrolyte, described positive plate comprises positive pole aluminium foil collector and is coated in its surperficial anode sizing agent coating, and described negative plate comprises negative pole aluminum foil current collector and is coated in surperficial cathode size coating, it is characterized in that
Anode and cathode slurry coating comprises following material:
Anode sizing agent quality proportioning is pressed nickel LiMn2O4 (LiNi 0.5mn 1.5o 4): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF(Kynoar)=95:1:1:3, solvent is NMP(N – methyl pyrrolidone), anodal solid content 60% ~ 65%;
Cathode size quality proportioning is pressed lithium titanate (Li 4ti 5o 12): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF=91:3:2:4, solvent is NMP, negative pole solid content 40% ~ 45%.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, described electrolyte is for adding the conventional carbonate solvent system 5V high-voltage electrolyte of anti-flatulence additive.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, anode sizing agent coating one side surface density is 180 ~ 200g/m 2, compacted density 3.45 ~ 3.55g/cm 3.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, cathode size coating one side surface density is 198 ~ 220g/m 2, compacted density 1.60 ~ 1.70g/cm 3.
Nickel LiMn2O4/lithium titanate battery according to described, is characterized in that, described positive slurry coating and cathode size coat side density ratio are 1:1.1.
Preparation method according to the nickel LiMn2O4/lithium titanate battery described in any one, is characterized in that,
Anode sizing agent production stage:
1) by PVDF and NMP in mass ratio 30:613 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 2h, the amount adding is Super-P:KS-15:PVDF=1:1:3 in mass ratio,
3) add nickel LiMn2O4 to continue to stir 2h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=95:3,
4) finally cross 150 mesh sieve dischargings;
Negative pole slurrying production stage:
1) by PVDF and NMP in mass ratio 4:150 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 3h, the amount adding is Super-P:KS-15:PVDF=3:2:4 in mass ratio,
3) add lithium titanate to continue to stir 4h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=91:4,
4) finally cross 150 mesh sieve dischargings.
Preparation method according to described nickel LiMn2O4/lithium titanate battery, is characterized in that, above-mentioned each reinforced stirring is high-speed stirred after first stirring at low speed, and above-mentioned mixing time all represents the high-speed stirred time.
Preparation method according to described nickel LiMn2O4/lithium titanate battery, is characterized in that, planetary mixer stirring at low speed revolution rotating speed 15 ± 1r/min, rotation rotating speed 500 ± 50r/min, high-speed stirred revolution rotating speed 25 ± 1r/min, rotation rotating speed 2200 ± 50r/min.
Specific embodiment explanation:
Planetary mixer is all used in both positive and negative polarity making beating, and methods of beating is used lithium ion slurrying common process technology; Wherein PVDF is U.S. Solef PVDF5130; NMP is that Guangzhou pine and cypress Chemical Co., Ltd. produces; planetary mixer is used Guangzhou good luck mixing apparatus Co., Ltd product; carbon black Super-P and graphite KS-15 are that Shanghai Hui Pu industrial chemical Co., Ltd produces; nickel LiMn2O4 is used Heter Electronics Group Co., Ltd.'s self-control product; lithium titanate is the lithium titanate model LTO-1 of Tianjin Bei Terui new energy materials Co., Ltd, and it is that Beijing Inst. of Chemical Reagent produces that electrolyte is selected the conventional carbonate solvent system 5V high-voltage electrolyte of the anti-flatulence additive of interpolation.
The lamination mode of battery is prepared employing 5Ah-3.0V flexible package, reservoir quantity 20 ± 0.5g, and other is soft-package battery common process technology.Voltage range 2.0V ~ 3.3V during battery detecting, 0.2C discharge capacity > 5Ah, battery reaches 5C charging 5C discharge capacity and accounts for the more than 90% of 0.2C charging 0.2C discharge capacity,-20 ℃ of 0.2C charge/discharge capacities account for the more than 90% of normal temperature 0.2C charge/discharge capacity, normal temperature 1C charges and discharge 1000 capability retention > 90% of circulation, security performance test passes.As shown in Figure 1, battery 1C charge and discharge cycles curve as shown in Figure 2 for 0.2C discharge curve.
[0025]

Claims (8)

1. a nickel LiMn2O4/lithium titanate battery, comprise positive plate, negative plate, electrolyte, described positive plate comprises positive pole aluminium foil collector and is coated in its surperficial anode sizing agent coating, and described negative plate comprises negative pole aluminum foil current collector and is coated in surperficial cathode size coating, it is characterized in that
Anode and cathode slurry coating comprises following material:
Anode sizing agent quality proportioning is pressed nickel LiMn2O4 (LiNi 0.5mn 1.5o 4): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF(Kynoar)=95:1:1:3, solvent is NMP(N – methyl pyrrolidone), anodal solid content 60% ~ 65%;
Cathode size quality proportioning is pressed lithium titanate (Li 4ti 5o 12): conductive carbon Super-p: conductive carbon KS-15: binding agent PVDF=91:3:2:4, solvent is NMP, negative pole solid content 40% ~ 45%.
2. nickel LiMn2O4/lithium titanate battery according to claim 1, is characterized in that, described electrolyte is for adding the conventional carbonate solvent system 5V high-voltage electrolyte of anti-flatulence additive.
3. nickel LiMn2O4/lithium titanate battery according to claim 1, is characterized in that, anode sizing agent coating one side surface density is 180 ~ 200g/m 2, compacted density 3.45 ~ 3.55g/cm 3.
4. nickel LiMn2O4/lithium titanate battery according to claim 1, is characterized in that, cathode size coating one side surface density is 198 ~ 220g/m 2, compacted density 1.60 ~ 1.70g/cm 3.
5. according to the nickel LiMn2O4/lithium titanate battery described in claim 1 or 3 or 4, it is characterized in that, described positive slurry coating and cathode size coat side density ratio are 1:1.1.
6. according to the preparation method of the nickel LiMn2O4/lithium titanate battery described in claim 1-5 any one, it is characterized in that,
Anode sizing agent production stage:
1) by PVDF and NMP in mass ratio 30:613 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 2h, the amount adding is Super-P:KS-15:PVDF=1:1:3 in mass ratio,
3) add nickel LiMn2O4 to continue to stir 2h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=95:3,
4) finally cross 150 mesh sieve dischargings;
Negative pole slurrying production stage:
1) by PVDF and NMP in mass ratio 4:150 join planetary mixer and stir 3h,
2) then add carbon black Super-P and graphite KS-15 to stir 3h, the amount adding is Super-P:KS-15:PVDF=3:2:4 in mass ratio,
3) add lithium titanate to continue to stir 4h, the amount adding is nickel LiMn2O4 in mass ratio again: PVDF=91:4,
4) finally cross 150 mesh sieve dischargings.
7. the preparation method of nickel LiMn2O4/lithium titanate battery according to claim 6, is characterized in that, above-mentioned each reinforced stirring is high-speed stirred after first stirring at low speed, and above-mentioned mixing time all represents the high-speed stirred time.
8. the preparation method of nickel LiMn2O4/lithium titanate battery according to claim 7, it is characterized in that planetary mixer stirring at low speed revolution rotating speed 15 ± 1r/min, rotation rotating speed 500 ± 50r/min, high-speed stirred revolution rotating speed 25 ± 1r/min, rotation rotating speed 2200 ± 50r/min.
CN201310607712.5A 2013-11-27 2013-11-27 Nickel ion doped/lithium titanate battery and preparation method thereof Active CN103682307B (en)

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Cited By (9)

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CN105336943A (en) * 2015-11-24 2016-02-17 四川省有色冶金研究院有限公司 Lithium battery formed on basis of lithium nickel manganese oxide and lithium titanate and preparation method of lithium battery
CN105355903A (en) * 2015-11-24 2016-02-24 四川省有色冶金研究院有限公司 Nickel lithium manganate-based positive electrode material of lithium ion battery and preparation method thereof
CN105428636A (en) * 2015-11-24 2016-03-23 四川省有色冶金研究院有限公司 Lithium ion battery anode material based on lithium titanate and preparation method thereof
CN105470581A (en) * 2015-12-23 2016-04-06 山东精工电子科技有限公司 High-capacity three-dimensional battery and preparation method therefor
CN105552355A (en) * 2015-12-16 2016-05-04 山东精工电子科技有限公司 High-rate lithium-ion battery and preparation method thereof
CN105703001A (en) * 2016-05-03 2016-06-22 韩志茹 Lithium battery and manufacturing method thereof
CN106025365A (en) * 2016-07-05 2016-10-12 深圳市海太阳实业有限公司 Making method of battery and battery
CN107617351A (en) * 2017-07-31 2018-01-23 珠海格力电器股份有限公司 Stirring method and application of lithium ion battery cathode and lithium ion battery
US9997816B2 (en) 2014-01-02 2018-06-12 Johnson Controls Technology Company Micro-hybrid battery module for a vehicle

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CN102593436A (en) * 2012-02-27 2012-07-18 清华大学 Self-supporting flexible carbon nano-tube paper composite electrode material for lithium ion battery
CN103050676A (en) * 2013-01-11 2013-04-17 山东同大新能源有限公司 Lithium-ion power battery and quick charging electric automobile with same
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CN102130363A (en) * 2011-01-31 2011-07-20 北京神州远望科技有限公司 High magnification polymer lithium ion power battery and preparation method thereof
CN102593436A (en) * 2012-02-27 2012-07-18 清华大学 Self-supporting flexible carbon nano-tube paper composite electrode material for lithium ion battery
CN103050676A (en) * 2013-01-11 2013-04-17 山东同大新能源有限公司 Lithium-ion power battery and quick charging electric automobile with same
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9997816B2 (en) 2014-01-02 2018-06-12 Johnson Controls Technology Company Micro-hybrid battery module for a vehicle
CN105336943A (en) * 2015-11-24 2016-02-17 四川省有色冶金研究院有限公司 Lithium battery formed on basis of lithium nickel manganese oxide and lithium titanate and preparation method of lithium battery
CN105355903A (en) * 2015-11-24 2016-02-24 四川省有色冶金研究院有限公司 Nickel lithium manganate-based positive electrode material of lithium ion battery and preparation method thereof
CN105428636A (en) * 2015-11-24 2016-03-23 四川省有色冶金研究院有限公司 Lithium ion battery anode material based on lithium titanate and preparation method thereof
CN105552355A (en) * 2015-12-16 2016-05-04 山东精工电子科技有限公司 High-rate lithium-ion battery and preparation method thereof
CN105470581A (en) * 2015-12-23 2016-04-06 山东精工电子科技有限公司 High-capacity three-dimensional battery and preparation method therefor
CN105703001A (en) * 2016-05-03 2016-06-22 韩志茹 Lithium battery and manufacturing method thereof
CN106025365A (en) * 2016-07-05 2016-10-12 深圳市海太阳实业有限公司 Making method of battery and battery
CN107617351A (en) * 2017-07-31 2018-01-23 珠海格力电器股份有限公司 Stirring method and application of lithium ion battery cathode and lithium ion battery

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