CN103606696A - High-capacity and low-energy-consumption lithium ion battery - Google Patents
High-capacity and low-energy-consumption lithium ion battery Download PDFInfo
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- CN103606696A CN103606696A CN201310573233.6A CN201310573233A CN103606696A CN 103606696 A CN103606696 A CN 103606696A CN 201310573233 A CN201310573233 A CN 201310573233A CN 103606696 A CN103606696 A CN 103606696A
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- lithium ion
- ion battery
- energy consumption
- high power
- binding agent
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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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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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
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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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
- H01M4/50—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
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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
- 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 high-capacity and low-energy-consumption lithium ion battery. The high-capacity and low-energy-consumption lithium ion battery comprises a positive pole piece, a negative pole piece, and a diaphragm and electrolyte arranged between the positive pole piece and the negative pole piece; a positive pole comprises a current collector and a conductive layer; the conductive layer comprises a conductive agent, a bonding agent and positive pole active materials; a negative pole material comprises stannic oxide and mesocarbon microbeads. According to the high-capacity and low-energy-consumption lithium ion battery, the battery with high capacity, high magnification and low self-discharging rate can be produced; the reversible capacity, the first-time charging/discharging efficiency and the cyclic performance of the battery can be improved obviously; the energy consumption is reduced.
Description
Technical field
The present invention relates to battery, be specifically related to a kind of high power capacity low energy consumption lithium ion battery.
Background technology
At present, in Chinese or global energy resource structure, coal, oil, natural gas primary energy account for more than 90%, and its reserves only supply exploitation about 50 years, and therefore developing new forms of energy must become the grand strategy industry of immuning from the economic downturn, create employment opportunities, seize future development commanding elevation.In the new forms of energy systems such as solar energy, wind energy, nuclear energy, lithium ion battery because its energy density is high, power density is high, good cycle, environmental friendliness, structure diversification and the excellent specific property such as cheap become the first-selected power supply of the walkie electronic apparatus such as video camera, mobile phone, notebook computer, are also the ideal sources of future space technology and high-end energy-storage system.
Current business-like ternary material is by the good LiNi of combination property
1/3co
1/3mn
1/3o
2the LiNi good with stability
0.4co
0.2mn
0.4o
4material, but the discharge capacity of this bi-material is all lower, with LiCoO
2quite, need a positive pole can make battery can meet high power capacity, high magnification, low self-discharge rate.And at present, business-like lithium ion battery negative material is mainly material with carbon element, its advantage is that cost is low, discharge platform is long, and etc. advantage, but the highest theoretical capacity of material with carbon element is only 372mAh/g.Therefore for to meet the demands of field to high-capacity battery such as portable electronics, electric motor car industry, military equipment and space flight, be necessary to explore novel high-capacity negative material lithium storage materials.The theoretical peak capacity of the negative material tin ash (SnO2) of lithium ion battery is about 1494mAh/g, theoretical reversible capacity can reach 783mAh/g, aspect capacity, there is obvious advantage, but 300%, very easily efflorescence in cyclic process, finally cause the seriously deteriorated of cycle performance, limited its commercialization.
Summary of the invention
The object of the invention is the defect for above-mentioned prior art, a kind of high power capacity low energy consumption lithium ion battery is provided, there is high power capacity, high magnification, the advantage of low energy consumption.
Object of the present invention can be achieved through the following technical solutions:
A kind of high power capacity low energy consumption lithium ion battery, comprise positive plate, negative plate and be placed in barrier film and the electrolyte between positive and negative plate, described positive pole comprises collector and conductive layer, described conductive layer comprises conductive agent, binding agent and positive active material, and described negative material comprises tin ash and MCMB.
Described conductive layer mass percentage content is, conductive agent 1～5%, binding agent 3～5%, positive active material 90～96%, described conductive agent is selected from one or more mixing in acetylene black, carbon nano-tube, carbon fiber, carbon black, crystalline flake graphite, described binding agent is polyvinylidene fluoride, the aluminium foil that during described collector, thickness is 0.01～0.03, and described positive active material chemical formula is LiNi
xco
ymn
1-x-yo
2, 0.5≤x≤1,0≤y≤0.2.
Described binding agent is dissolved in 1-Methyl-2-Pyrrolidone or acetone, forms colloidal binder, and by mass percentage, 1-Methyl-2-Pyrrolidone or acetone account for 90～95% of binding agent gross mass.
The preparation of described positive pole comprises the following steps:
A, take binding agent and 1-Methyl-2-Pyrrolidone or acetone and stir, the binding agent that is stirred to Baise dissolves completely, forms the transparent body standing;
B, at transparent colloid binding agent, shift and to treat to add conductive agent by planetary stirring machine, stir, obtain electric colloid, then add positive active material, stir, obtain sizing material, regulate compound viscosity, sieve stand-by;
C, collector is carried out to corrosion treatment with alkaline solution, then wash, dry, the slurry sieving is evenly coated on to the tow sides of collector, dry, complete coating, obtain positive pole.
Describedly add conductive agent to divide 1～3 time to add, described vacuum stirring 2～6 hours, describedly adds the time-division in conductive rubber to add for 2～5 times positive active material, and described stirring makes vacuum stirring 3～6 hours.
The preparation of described negative material comprises the following steps:
A, MCMB is dispersed in the butter of tin aqueous solution, obtains mixed liquor, mixed liquor is contacted with ammonia under vacuum, generate white precipitate;
B, white depositions is separated, and be dried, dried white depositions is calcined under inert gas shielding, obtain described lithium ion battery negative.
Every gram of MCMB is dispersed in the butter of tin aqueous solution of 15～50ml, and in described butter of tin, the concentration of butter of tin is 0.08～0.2mol/L.
Temperature during dry white depositions is 60～100 ℃, and be 10～48h drying time, first dried white depositions is ground, and then carries out calcining under heating rate is the condition of 10 ℃/min, until be warming up to 400～800 ℃, calcines 5～15 hours.
Beneficial effect of the present invention: the present invention first prepares conducting resinl, then add positive active material form slurry, be conducive to avoid positive electrode water suction, vacuum stirring has improved the uniformity of sauce, adopts alkali lye to process collector and can remove surface and oil contaminant, and produce slight corrosion, improve collection liquid surface roughness, slurry is more prone to absorption, and formula regulates space to increase, and can produce the battery of high power capacity, high magnification, low self-discharge rate; Negative material comprises tin ash and MCMB, adopt gas phase diffusion method to prepare the composite material that performance is more good, its reversible capacity, first charge-discharge efficiency and cycle performance all be improved significantly, and shortened synthesis cycle, reduced energy consumption.
Embodiment
Below by embodiment, the present invention is described in detail.
For positive pole, first 40 grams of polyvinylidene fluoride are stirred with 460 grams of 1-Methyl-2-Pyrrolidones, the binding agent that is stirred to Baise dissolves completely, forms the transparent body; At transparent colloid binding agent, shift and treat planetary stirring machine, add 40 grams of acetylene blacks, stir, obtain electric colloid, add acetylene black to divide 2 times and add, described vacuum stirring 4 hours, then 940 grams of ternary materials are divided 3 times and add, vacuum stirring 5 hours, obtains sizing material, adjusting compound viscosity is 7000mpa.s, sieves stand-by; Aluminium foil is carried out to 50min corrosion treatment with the LiOH solution of 0.6mol/L, then wash, dry, the slurry sieving is evenly coated on to the tow sides of collector, dry, complete coating, obtain positive pole.
For negative pole, the butter of tin aqueous solution of getting 30ml molar concentration and be 0.1mol/L adds the commercial MCMB of 1.0g, is placed in 50ml small beaker magnetic agitation 1.5h, and the ultrasonic 0.5h of frequency 99Hz, fully scatter MCMB.In round-bottomed flask by suspension-turbid liquid dislocation with two-way cock, in round-bottomed flask, vacuumize.Ammonia is filled in leather bag, with Huffman folder, clamp.After leather bag is connected with round-bottomed flask two-way cock, open cock and Huffman folder, in round-bottomed flask, moment generates white precipitate.The precipitation obtaining is after centrifugation, and 80 ℃, 20h are dried.Agate mortar fully grinds rear with tube-type atmosphere furnace nitrogen atmosphere, 10 ℃/min of heating rate, 700 ℃ of calcining 7h, obtains black powder and obtains negative material.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technology people of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. a high power capacity low energy consumption lithium ion battery, comprise positive plate, negative plate and be placed in barrier film and the electrolyte between positive and negative plate, it is characterized in that: described positive pole comprises collector and conductive layer, described conductive layer comprises conductive agent, binding agent and positive active material, and described negative material comprises tin ash and MCMB.
2. a kind of high power capacity low energy consumption lithium ion battery according to claim 1, it is characterized in that: described conductive layer mass percentage content is, conductive agent 1～5%, binding agent 3～5%, positive active material 90～96%, described conductive agent is selected from one or more mixing in acetylene black, carbon nano-tube, carbon fiber, carbon black, crystalline flake graphite, and described binding agent is polyvinylidene fluoride, the aluminium foil that during described collector, thickness is 0.01～0.03, described positive active material chemical formula is LiNi
xco
ymn
1-x-yo
2, 0.5≤x≤1,0≤y≤0.2.
3. a kind of high power capacity low energy consumption lithium ion battery according to claim 2, it is characterized in that: described binding agent is dissolved in 1-Methyl-2-Pyrrolidone or acetone, form colloidal binder, by mass percentage, 1-Methyl-2-Pyrrolidone or acetone account for 90～95% of binding agent gross mass.
4. a kind of high power capacity low energy consumption lithium ion battery according to claim 3, is characterized in that, the preparation of described positive pole comprises the following steps:
A, take binding agent and 1-Methyl-2-Pyrrolidone or acetone and stir, the binding agent that is stirred to Baise dissolves completely, forms the transparent body standing;
B, at transparent colloid binding agent, shift and to treat to add conductive agent by planetary stirring machine, stir, obtain electric colloid, then add positive active material, stir, obtain sizing material, regulate compound viscosity, sieve stand-by;
C, collector is carried out to corrosion treatment with alkaline solution, then wash, dry, the slurry sieving is evenly coated on to the tow sides of collector, dry, complete coating, obtain positive pole.
5. a kind of high power capacity low energy consumption lithium ion battery according to claim 4, it is characterized in that: described in add conductive agent to divide 1～3 time to add, described vacuum stirring 2～6 hours, describedly add the time-division in conductive rubber to add for 2～5 times positive active material, described stirring makes vacuum stirring 3～6 hours.
6. a kind of high power capacity low energy consumption lithium ion battery according to claim 1, is characterized in that, the preparation of described negative material comprises the following steps:
A, MCMB is dispersed in the butter of tin aqueous solution, obtains mixed liquor, mixed liquor is contacted with ammonia under vacuum, generate white precipitate;
B, white depositions is separated, and be dried, dried white depositions is calcined under inert gas shielding, obtain described lithium ion battery negative.
7. a kind of high power capacity low energy consumption lithium ion battery according to claim 6, is characterized in that: every gram of MCMB is dispersed in the butter of tin aqueous solution of 15～50ml, and in described butter of tin, the concentration of butter of tin is 0.08～0.2mol/L.
8. a kind of high power capacity low energy consumption lithium ion battery according to claim 6, it is characterized in that: temperature during dry white depositions is 60～100 ℃, be 10～48h drying time, first dried white depositions is ground, then carry out calcining under heating rate is the condition of 10 ℃/min, until be warming up to 400～800 ℃, calcine 5～15 hours.
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| CN201310573233.6A CN103606696A (en) | 2013-11-15 | 2013-11-15 | High-capacity and low-energy-consumption lithium ion battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599532A (en) * | 2018-12-10 | 2019-04-09 | 江苏天鹏电源有限公司 | A kind of pulping process of silicium cathode material ternary lithium battery |
Citations (4)
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| CN101504978A (en) * | 2009-03-19 | 2009-08-12 | 厦门钨业股份有限公司 | Lithium ionic cell positive plate made from ternary material and production method thereof |
| CN101621125A (en) * | 2009-02-13 | 2010-01-06 | 成都晶元新材料技术有限公司 | Nickel-cobalt-manganese multi-doped lithium ion battery cathode material and preparation method thereof |
| CN101944598A (en) * | 2010-08-31 | 2011-01-12 | 天津巴莫科技股份有限公司 | Method for preparing lithium ion battery cathode material |
| WO2011126182A1 (en) * | 2010-04-09 | 2011-10-13 | 주식회사 에코프로 | Method for manufacturing a cathode active material for a secondary battery including a metal composite oxide, and cathode active material for a second battery including a metal composite oxide manufactured by said method |
-
2013
- 2013-11-15 CN CN201310573233.6A patent/CN103606696A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621125A (en) * | 2009-02-13 | 2010-01-06 | 成都晶元新材料技术有限公司 | Nickel-cobalt-manganese multi-doped lithium ion battery cathode material and preparation method thereof |
| CN101504978A (en) * | 2009-03-19 | 2009-08-12 | 厦门钨业股份有限公司 | Lithium ionic cell positive plate made from ternary material and production method thereof |
| WO2011126182A1 (en) * | 2010-04-09 | 2011-10-13 | 주식회사 에코프로 | Method for manufacturing a cathode active material for a secondary battery including a metal composite oxide, and cathode active material for a second battery including a metal composite oxide manufactured by said method |
| CN101944598A (en) * | 2010-08-31 | 2011-01-12 | 天津巴莫科技股份有限公司 | Method for preparing lithium ion battery cathode material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599532A (en) * | 2018-12-10 | 2019-04-09 | 江苏天鹏电源有限公司 | A kind of pulping process of silicium cathode material ternary lithium battery |
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Application publication date: 20140226 |