CN106654179A - Composite conductive agent preparation method, lithium battery positive plate preparation method and lithium battery preparation method - Google Patents
Composite conductive agent preparation method, lithium battery positive plate preparation method and lithium battery preparation method Download PDFInfo
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- CN106654179A CN106654179A CN201611217756.7A CN201611217756A CN106654179A CN 106654179 A CN106654179 A CN 106654179A CN 201611217756 A CN201611217756 A CN 201611217756A CN 106654179 A CN106654179 A CN 106654179A
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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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
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Abstract
The invention discloses a composite conductive agent preparation method which includes the steps: firstly, respectively weighing carbon nano-tubes, graphene and acetylene black according to the weight ratio of 5:5:90, adding the carbon nano-tubes, the graphene and the acetylene black into 15% of ethanol solution, adjusting a pH (potential of hydrogen) value of the solution, and enabling the pH value to be 6; secondly, enabling the carbon nano-tubes, the graphene and the acetylene black to organically combine by the aid of assist vibration process of high-speed dispersion and intense ultrasound, and synthesizing mixture by the aid of action of pi-pi bonds between material molecules and Vander Wale force to obtain uniformly-dispersed three-dimensional hybridization conductive agent solution of the carbon nano-tubes, the graphene and the acetylene black; thirdly, drying the hybridization conductive agent solution obtained in the step 2 for 24 hours in a vacuum drying oven at the temperature of 85 DEG C, and sufficiently grinding dried solid matters into powder to form the composite conductive agent. The invention further provides a lithium battery positive plate and a lithium battery preparation method.
Description
【Technical field】
The present invention relates to technical field of lithium batteries, more particularly to a kind of combined conductive agent preparation method, positive plate of lithium battery
Preparation method and lithium battery preparation method.
【Background technology】
At present, electric automobile is gradually being promoted and will had broad prospects in future, and lithium battery is used as electric automobile
One of technology of most critical, its performance quality affects great to car load.LiFePO4Material has become at present the one of industrialization production
The important commercialization power battery anode material of money, but because material electrical conductivity itself is relatively low, (electronic conductivity is 10-10
～10-9S/cm), causing the theoretical capacity of material cannot play to greatest extent.High rate charge-discharge characteristic, longer use
In the life-span, be LiFePO4The huge challenge that electrokinetic cell currently faces.As the conductive agent of lithium ion battery important component part,
To improve battery capacity performance, high rate performance, cycle performance play the role of it is important.At present, conventional conductive agent acetylene black is in
It is granular, it is unfavorable for the formation of conductive network, polarization of electrode is serious, the utilization rate and lithium ion secondary to improving active material
The energy density of battery is still limited.
【The content of the invention】
It is an object of the invention to provide a kind of migration rate for improving lithium ion in positive pole, improves the utilization rate of active material
And combined conductive agent preparation method, the positive plate of lithium battery preparation of the energy density, cycle life and high rate performance of lithium battery
Method and lithium battery preparation method.
To achieve these goals, the present invention provides a kind of combined conductive agent preparation method, comprises the following steps：
Step 1：By mass percentage, CNT:Graphene:Acetylene black=5:5:90 weigh respectively CNT, stone
Three kinds of material with carbon elements of black alkene and acetylene black, in adding 15% ethanol solution, and adjust solution ph so as to which pH value is 6 with nitric acid；
Step 2：CNT-three kinds of Graphene-acetylene black is made using high speed dispersion and intense ultrasonic ancillary vibration process
Material is organically combined, by the pi-pi bond between material molecule and van der Waals interaction synthesis obtain finely dispersed CNT-
Graphene-acetylene black three-dimensional conductive hydridization conduction agent solution；
Step 3：The hydridization conduction agent solution that step 2 is obtained 85 DEG C of drying 24h in vacuum drying chamber, and after drying
Solid matter be fully ground into powder formed combined conductive agent.
The present invention also provides a kind of lithium battery anode piece preparation method, comprises the following steps：
Step 4：Take in the combined conductive agent addition appropriate amount of deionized water that step 3 is obtained and stir, and add in solution
Enter appropriate PVP dispersants, high speed dispersion and ultrasonic vibration are carried out to solution, obtain well dispersed composite conducting agent material and suspend
The aqueous solution；
Step 5：According to mass ratio, active material：Binding agent：Combined conductive agent=93:3:4
Weigh the bonding agent of certain mass and add the conductive agent material aqueous suspension that step 4 is prepared as dilution
Agent, by high-speed stirred the conductive gelatin with high heat-conductivity conducting performance is made；
Step 6：According to mass ratio, active material：Binding agent：Combined conductive agent=93:3:4
The active material of certain mass is weighed, in adding the conductive gelatin that step 5 is obtained, dispersion at a high speed is stirred and after froth breaking
Anode sizing agent is made, coating anode sizing agent is carried out on positive pole paillon foil, then the positive pole foil to being coated with anode sizing agent is carried out
Carry out again making positive plate of lithium battery after roll-in after baking.
The present invention also provides a kind of lithium battery preparation method, comprises the following steps：
Step 7：After step 6 will made by positive plate of lithium battery with graphite as negative pole, Celgard2500 films be every
Film, ethylene carbonate, dimethyl carbonate and methyl ethyl carbonate are electrolyte, are assembled into lithium battery.
Wire CNT, three kinds of material with carbon elements of flake graphite alkene and point-like acetylene black have not in the composite guide agent of the present invention
Same design feature, three kinds of conductive carbon material hydridization form the three-dimensional structure material of unique structure, and the performance for making three kinds of materials is obtained
Synergy is played to combination, with the excellent properties that one-component does not possess, the mechanical property of composite can be effectively improved
Energy.In addition, acetylene black, CNT, graphene hybrid material compounding hybrid material, because these three material point-line-surfaces are matched somebody with somebody
Close, with superior electrical conductivity, thermal conductivity and big specific surface area, this combined conductive agent is added into lithium iron phosphate positive material
In, so as to improve migration rate of the lithium ion in positive pole, improve the utilization rate of active material and the energy density of lithium battery, follow
Ring life-span and high rate performance.
【Description of the drawings】
Fig. 1 (a) is that the combined conductive agent made by preferred embodiment for the present invention combined conductive agent preparation method is further
Made by lithium battery A rate charge-discharge curve map.
Fig. 1 (b) is the rate charge-discharge curve map of lithium battery B made by conventional conductive agent Super-p.
Fig. 2 is that the combined conductive agent made by preferred embodiment for the present invention combined conductive agent preparation method is further made
Lithium battery A and conventional conductive agent Super-p made by lithium battery B 3C constant current dischargeable capacity conservation rate curves.
【Specific embodiment】
In order that the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with accompanying drawing and
Specific embodiment, the present invention will be described in further detail.It should be appreciated that being embodied as described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
The present invention provides a kind of combined conductive agent preparation method, the method comprising the steps of：
Step 1：(CNT by mass percentage:Graphene:Acetylene black=5:5:90) CNT, stone are weighed respectively
Three kinds of material with carbon elements of black alkene and acetylene black, in adding 15% ethanol solution, and adjust solution ph so as to which pH value is 6 with nitric acid；
Step 2：CNT-three kinds of Graphene-acetylene black is made using high speed dispersion and intense ultrasonic ancillary vibration process
Material is organically combined, by the pi-pi bond between material molecule and van der Waals interaction synthesis obtain finely dispersed CNT-
Graphene-acetylene black three-dimensional conductive hydridization conduction agent solution；In this step, disperse at a high speed and intense ultrasonic ancillary vibration process work
Rate be 300W (watt), when a length of 3h (hour).
Step 3：The hydridization conduction agent solution that step 2 is obtained 85 DEG C of drying 24h in vacuum drying chamber, and after drying
Solid matter be fully ground into powder formed combined conductive agent.CNT, Graphene and the acetylene that the present invention is obtained with this
The combined conductive agent of black hydridization.
Wire CNT, three kinds of material with carbon elements of flake graphite alkene and point-like acetylene black have in the combined conductive agent of the present invention
Different design features, shows each different advantages, and material hybridization is a kind of important means of material modification, and the present invention is adopted
Three kinds of conductive carbon material hydridization are made with physical method, the three-dimensional structure material of unique structure is formed, the performance for making three kinds of materials is obtained
Synergy is played to combination, the hydridization conductive material for obtaining has the excellent properties that one-component does not possess, and can effectively carry
The mechanical property of high composite.Acetylene black, CNT, graphene hybrid material compounding hybrid material, because these three materials
The cooperation of material point-line-surface, with superior electrical conductivity, thermal conductivity and big specific surface area, by this combined conductive agent phosphoric acid is added to
In iron lithium anode material, so as to improve migration rate of the lithium ion in positive pole, the utilization rate and lithium battery of active material is improved
Energy density, cycle life and high rate performance.
The present invention further provides a kind of lithium battery anode piece making method, due to the combined conductive agent obtained in step 3
In nano material because particle is little easily reunites, therefore, will lead in lithium battery anode piece making method of the present invention in technique
Electric agent is made well dispersed suspension and is mixed with adhesive again, releases the difficult scattered problem of conductive nano agent.Specifically, this
Bright lithium battery anode piece making method is comprised the following steps after above-mentioned steps 3：
Step 4：Take in the combined conductive agent addition appropriate amount of deionized water that above-mentioned steps 3 are obtained and stir, and to solution
It is middle to add appropriate PVP (polyvinylpyrrolidone, polyvinyl pyrrolidone, abbreviation PVP) dispersant, solution is carried out
At a high speed dispersion and ultrasonic vibration, obtain well dispersed composite conducting agent material aqueous suspension；In this step, composite conducting is taken
Agent quality is 50g.
Step 5：According to mass ratio, active material (LiFePO4)：Binding agent：Combined conductive agent=93:3:4
Weigh the bonding agent of certain mass and add the conductive agent material aqueous suspension that step 4 is prepared as dilution
Agent, by high-speed stirred the conductive gelatin with high heat-conductivity conducting performance is made；In this step, binding agent selects LA133, LA13
It is the aqueous dispersions of acrylonitrile multiple copolymer, with good anti-oxidant and anti-also ability, it is adaptable to various positive and negative pole materials.
In this step, binding agent quality is taken for 37.5g.
Step 6：According to mass ratio, active material (LiFePO4)：Binding agent：Combined conductive agent=93:3:4
The active material (LiFePO4) of certain mass is weighed, in adding the conductive gelatin that step 5 is obtained, dispersion at a high speed is stirred
Anode sizing agent is mixed and made after froth breaking, coating anode sizing agent is carried out on positive pole paillon foil, then to being coated with anode sizing agent just
Pole foil carries out again making positive plate of lithium battery after roll-in after being toasted.In this step, the quality for taking active material is
1162.5g.In this step, the positive pole paillon foil is aluminium flake.
The present invention further provides a kind of lithium battery manufacture method.Specifically, lithium battery manufacture method of the present invention is above-mentioned
Comprise the following steps after step 6：
Step 7：Will as stated above made by positive plate of lithium battery with graphite as negative pole, Celgard2500 films be every
Film, ethylene carbonate (EC), dimethyl carbonate (DMC) and methyl ethyl carbonate (EMC) are electrolyte, are assembled into lithium battery.
Celgard is that general headquarters produce the polyethylene used by lithium ion battery middle body and gather higher than North Carolina Xia Luote
The company of propylene microcellular film (barrier film is effectively to prevent electronics movement and can allow the film of ion motion).Generally can in laboratory
Using the industrial polypropylene screen of Celgard2400 or Celgard2500 models.Typically adopt polyethylene, polyacrylic white
Barrier film, the product of single or multiple lift structure all may be used.There are countless nano size voids on this kind of film, although be in itself insulation material
Material, it is impossible to conduct electronics, but its space can allow lithium ion to pass through.Cutting is circular when using, diameter and Snap-type cell positive
The inside diameter of shell is equal, can so avoid lithium ion from directly leaking through from its edge.
Under constant temperature, high rate performance and cycle performance test are carried out to lithium battery made by step 7.Fig. 1 (a) is this
The multiplying power of lithium battery A made by combined conductive agent made by preferred embodiment of the invention combined conductive agent preparation method is further
Charging and discharging curve figure.Fig. 1 (b) is the rate charge-discharge curve map of lithium battery B made by conventional conductive agent Super-p.Fig. 2 is this
Lithium battery A and routine made by combined conductive agent made by preferred embodiment of the invention combined conductive agent preparation method is further
The 3C constant current dischargeable capacity conservation rate curves of lithium battery B made by conductive agent Super-p.
As can be seen that (A) battery 5C final discharging voltages are 3.073V from Fig. 1 (a) and Fig. 1 (b), higher than (B) battery
3.040V, illustrate that the electrokinetic cell high rate performance obtained by experimental program of the present invention is substantially better than common batteries.
From figure 2 it can be seen that capability retention is 89.14% after (A) battery 3C is circulated 562 weeks, follow higher than (B) battery
The 75.86% of ring 522 weeks, circulation volume conservation rate is substantially better than common batteries, illustrates the electricity obtained by experimental program of the present invention
Pond cycle life is apparently higher than common batteries.
The present invention adopts efficient physics ULTRASONIC COMPLEX mode, and three kinds of material with carbon elements are pre-processed, and prepares structure
Unique three-dimensional structure material, by the coordinated of acetylene black-three kinds of material point-line-surfaces of CNT-Graphene, fully sends out
The respective advantage of three is waved, the chemical property better than common batteries made by one-component super-p conductive agents is shown.
The difficult scattered shortcoming of nanometer conductive material is considered in technique, using the pre-dispersed good levitated conductive agent aqueous solution
Improve beating process, improve beating efficiency, improve beating resultses.
The excellent electric conductivity of acetylene black, CNT and three kinds of material with carbon elements of Graphene is taken full advantage of, phosphoric acid is improve
The conductance of iron lithium ion battery positive electrode, discharge-rate performance, combined conductive agent is formed with active compound lithium iron phosphate
Three-dimensional lithium ion mobility passage, improve electrokinetic cell capacity play, with good capability retention and cycle life.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
Additional advantage and modification are easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of god and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (6)
1. a kind of combined conductive agent preparation method, comprises the following steps：
Step 1：By mass percentage, CNT:Graphene:Acetylene black=5:5:90 weigh respectively CNT, Graphene
And three kinds of material with carbon elements of acetylene black, in adding 15% ethanol solution, and solution ph is adjusted with nitric acid so as to which pH value is 6；
Step 2：CNT-three kinds of Graphene-acetylene black material is made using high speed dispersion and intense ultrasonic ancillary vibration process
Organically combine, by the pi-pi bond between material molecule and van der Waals interaction synthesis finely dispersed CNT-graphite is obtained
Alkene-acetylene black three-dimensional conductive hydridization conduction agent solution；
Step 3：Step 2 is obtained hydridization conduction agent solution in vacuum drying chamber 85 DEG C drying 24h, and by drying after consolidate
Body material is fully ground into powder and forms combined conductive agent.
2. combined conductive agent preparation method as claimed in claim 1, it is characterised in that：Step 3 high speed is disperseed and strong super
Sound ancillary vibration process power be 300W, when a length of 3h.
3. a kind of lithium battery anode piece preparation method, comprises the following steps：
Step 4：Take the combined conductive agent that step 3 in claim 1 obtains and add and stir in appropriate amount of deionized water, and to molten
Appropriate PVP dispersants are added in liquid, high speed dispersion and ultrasonic vibration are carried out to solution, obtain well dispersed combined conductive agent material
Material aqueous suspension；
Step 5：According to mass ratio, active material：Binding agent：Combined conductive agent=93:3:4
Weigh the bonding agent of certain mass and add the conductive agent material aqueous suspension that step 4 is prepared as diluent,
Conductive gelatin with high heat-conductivity conducting performance is made by high-speed stirred；
Step 6：According to mass ratio, active material：Binding agent：Combined conductive agent=93:3:4
The active material of certain mass is weighed, in adding the conductive gelatin that step 5 is obtained, is made after dispersion stirring and froth breaking at a high speed
Anode sizing agent, carries out coating anode sizing agent on positive pole paillon foil, and then the positive pole foil to being coated with anode sizing agent is toasted
Carry out again afterwards making positive plate of lithium battery after roll-in.
4. lithium battery anode piece preparation method as claimed in claim 3, it is characterised in that：The active material is ferric phosphate
Lithium.
5. lithium battery anode piece preparation method as claimed in claim 3, it is characterised in that：Taking the combined conductive agent quality is
50g, it is 37.5g to take binding agent quality, and the quality for taking active material is 1162.5g.
6. a kind of lithium battery preparation method, comprises the following steps：
Step 7：After 6 the step of claim 3 will made by positive plate of lithium battery with graphite as negative pole, Celgard2500
Film is barrier film, and ethylene carbonate, dimethyl carbonate and methyl ethyl carbonate are electrolyte, are assembled into lithium battery.
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| CN201511000521 | 2015-12-27 | ||
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611440A (en) * | 2017-08-14 | 2018-01-19 | 中国石油大学(北京) | A kind of bowl-type carbon material, it is prepared and point-line-surface three-phase composite electrocondution slurry |
| CN107887594A (en) * | 2017-12-04 | 2018-04-06 | 中国科学院青岛生物能源与过程研究所 | A kind of compound lithium-rich manganese-based anode material and preparation method for lithium ion battery |
| CN108023059A (en) * | 2017-11-30 | 2018-05-11 | 东莞市金源电池科技有限公司 | A kind of process for dispersing of lithium battery slurrying graphene |
| CN108559226A (en) * | 2018-05-03 | 2018-09-21 | 万美石墨烯科技无锡有限公司 | A kind of graphene heating film |
| CN108888865A (en) * | 2018-06-29 | 2018-11-27 | 成都三乙医疗科技有限公司 | A kind of thermal physical therapeutical electrode slice |
| CN109524667A (en) * | 2018-10-16 | 2019-03-26 | 上海力信能源科技有限责任公司 | A kind of preparation method of combined conductive agent and preparation method thereof, carbon nanotube |
| CN109768279A (en) * | 2018-12-20 | 2019-05-17 | 上海力信能源科技有限责任公司 | A kind of combined conductive agent and preparation method thereof, lithium ion cell positive |
| CN109786724A (en) * | 2019-03-11 | 2019-05-21 | 贵州省铜仁华迪斯新能源有限公司 | A kind of ultralow-temperature high-rate type lithium ion cell and preparation method thereof |
| CN109935795A (en) * | 2017-12-18 | 2019-06-25 | 孚能科技（赣州）有限公司 | Positive electrode composition, anode sizing agent, anode and lithium ion battery |
| CN110518255A (en) * | 2019-07-19 | 2019-11-29 | 西安交通大学 | A kind of basic carbonate cobalt nanorod/Pt nano particle/hollow XC-72 carbon composite and preparation method thereof |
| CN111710868A (en) * | 2020-06-30 | 2020-09-25 | 昆山宝创新能源科技有限公司 | High-alkalinity anode slurry and preparation method and application thereof |
| CN113363423A (en) * | 2021-06-02 | 2021-09-07 | 万向一二三股份公司 | Preparation method of low-cost high-energy-density positive plate and preparation method of lithium battery |
| CN114843473A (en) * | 2022-05-18 | 2022-08-02 | 深圳市金百纳纳米科技有限公司 | Composite slurry applied to lithium iron battery and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544502A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Anode and cathode conductive additive for secondary lithium battery, method for preparing conductive additive, and method for preparing secondary lithium battery |
| CN103545115A (en) * | 2012-07-09 | 2014-01-29 | 海洋王照明科技股份有限公司 | Graphene-carbon nano tube composite material, preparation method thereof and super capacitor |
| CN103715452A (en) * | 2013-12-19 | 2014-04-09 | 山东威能环保电源有限公司 | Low-temperature lithium iron phosphate lithium-ion power battery |
-
2016
- 2016-12-26 CN CN201611217756.7A patent/CN106654179A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544502A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Anode and cathode conductive additive for secondary lithium battery, method for preparing conductive additive, and method for preparing secondary lithium battery |
| CN103545115A (en) * | 2012-07-09 | 2014-01-29 | 海洋王照明科技股份有限公司 | Graphene-carbon nano tube composite material, preparation method thereof and super capacitor |
| CN103715452A (en) * | 2013-12-19 | 2014-04-09 | 山东威能环保电源有限公司 | Low-temperature lithium iron phosphate lithium-ion power battery |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611440A (en) * | 2017-08-14 | 2018-01-19 | 中国石油大学(北京) | A kind of bowl-type carbon material, it is prepared and point-line-surface three-phase composite electrocondution slurry |
| CN108023059A (en) * | 2017-11-30 | 2018-05-11 | 东莞市金源电池科技有限公司 | A kind of process for dispersing of lithium battery slurrying graphene |
| CN107887594A (en) * | 2017-12-04 | 2018-04-06 | 中国科学院青岛生物能源与过程研究所 | A kind of compound lithium-rich manganese-based anode material and preparation method for lithium ion battery |
| CN109935795B (en) * | 2017-12-18 | 2021-02-12 | 孚能科技(赣州)股份有限公司 | Positive electrode material composition, positive electrode slurry, positive electrode, and lithium ion battery |
| CN109935795A (en) * | 2017-12-18 | 2019-06-25 | 孚能科技（赣州）有限公司 | Positive electrode composition, anode sizing agent, anode and lithium ion battery |
| CN108559226A (en) * | 2018-05-03 | 2018-09-21 | 万美石墨烯科技无锡有限公司 | A kind of graphene heating film |
| CN108559226B (en) * | 2018-05-03 | 2021-03-16 | 江苏瑞卓新材料科技有限公司 | Graphene heating film |
| CN108888865A (en) * | 2018-06-29 | 2018-11-27 | 成都三乙医疗科技有限公司 | A kind of thermal physical therapeutical electrode slice |
| CN109524667A (en) * | 2018-10-16 | 2019-03-26 | 上海力信能源科技有限责任公司 | A kind of preparation method of combined conductive agent and preparation method thereof, carbon nanotube |
| CN109768279A (en) * | 2018-12-20 | 2019-05-17 | 上海力信能源科技有限责任公司 | A kind of combined conductive agent and preparation method thereof, lithium ion cell positive |
| CN109786724A (en) * | 2019-03-11 | 2019-05-21 | 贵州省铜仁华迪斯新能源有限公司 | A kind of ultralow-temperature high-rate type lithium ion cell and preparation method thereof |
| CN110518255A (en) * | 2019-07-19 | 2019-11-29 | 西安交通大学 | A kind of basic carbonate cobalt nanorod/Pt nano particle/hollow XC-72 carbon composite and preparation method thereof |
| CN111710868A (en) * | 2020-06-30 | 2020-09-25 | 昆山宝创新能源科技有限公司 | High-alkalinity anode slurry and preparation method and application thereof |
| CN113363423A (en) * | 2021-06-02 | 2021-09-07 | 万向一二三股份公司 | Preparation method of low-cost high-energy-density positive plate and preparation method of lithium battery |
| CN114843473A (en) * | 2022-05-18 | 2022-08-02 | 深圳市金百纳纳米科技有限公司 | Composite slurry applied to lithium iron battery and preparation method thereof |
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