CN109659562A - Binder, electrode slice and lithium ion battery for lithium ion battery - Google Patents
Binder, electrode slice and lithium ion battery for lithium ion battery Download PDFInfo
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- CN109659562A CN109659562A CN201711393628.2A CN201711393628A CN109659562A CN 109659562 A CN109659562 A CN 109659562A CN 201711393628 A CN201711393628 A CN 201711393628A CN 109659562 A CN109659562 A CN 109659562A
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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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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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
- 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
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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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- 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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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of binders, electrode slice and lithium ion battery for lithium ion battery, the binder includes first binder, the first binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, and the ratio of the amount of the substance of the acrylic monomers and crosslinking agent is 1:1/20~1/60.Polymer that the electrode slice of lithium ion battery of the invention is obtained using acrylic acid and the crosslinked polymerization reaction of crosslinking agent or its mixture with other binders are as binder, reduce the cost for preparing lithium ion battery, and the cycle life of obtained lithium ion battery is longer, has excellent cycle performance.
Description
Technical field
The present invention relates to technical field of lithium ion, in particular to a kind of binder for lithium ion battery,
Electrode slice and lithium ion battery.
Background technique
Lithium ion battery due to specific energy is big, operating voltage is high, service life cycle is long, memory-less effect, self discharge are small,
Pollution free green environment protection, the advantages that having extended cycle life, have been widely used in Portable mobile electronic device such as mobile phone, have taken the photograph
Camera, laptop etc. are also listed in the candidate power supply of electric car, space flight, military affairs and large-scale energy storage device.With lithium from
The development of sub- battery, requires the capacity, high and low temperature resistance and cycle life etc. of battery higher and higher, and cell size is in electricity
It is played a crucial role in the manufacturing process of pond.The stability of slurry directly affects the quality of slurry coating, and then influences electricity
The performances such as the cycle life in pond.
For traditional anode sizing agent using PVDF as binder, the stability of slurry is poor, sinks after shelving 12 hours
It forms sediment, the bad phenomenons such as viscosity decline of slurry are unfavorable for slurry storage and are used to prepare the positive plate of high quality.
The negative electrode slurry that conventional lithium ion battery cathode uses using SBR butadiene-styrene rubber and CMC carboxymethyl cellulose as
The stability of binder, slurry is poor, precipitates after shelving 12 hours, the bad phenomenons such as viscosity decline of slurry, unfavorable
The negative electrode tab of high quality is stored and is used to prepare in slurry.
Summary of the invention
In view of this, a kind of binder, electrode slice and lithium ion battery for lithium ion battery provided by the invention, more
It is good to overcome the above-mentioned problems of the prior art and defect, the electrode slice of lithium ion battery of the invention using acrylic acid with
Polymer that the crosslinked polymerization reaction of crosslinking agent obtains or its mixture with other binders as binder, make to prepare lithium from
The cost of sub- battery reduces, and the cycle life of obtained lithium ion battery is longer, has excellent cycle performance.
1. a kind of binder for lithium ion battery, the binder include first binder, the first binder
It is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, the ratio of the amount of the substance of the acrylic monomers and crosslinking agent is
1:1/20~1/60；The first binder includes such as flowering structure:
。
Further, the crosslinking agent includes one or more double bond structures.
Further, the crosslinking agent is allyl sucrose, allyl sucrose rouge, pentaerythrite allyl ether and acrylate
One of or it is a variety of.
Further, the binder further includes the second binder, and second binder is butadiene-styrene rubber, carboxymethyl fibre
Tie up element, Kynoar, polytetrafluoroethylene (PTFE), hydroxypropyl methyl cellulose, polyvinyl alcohol, polyacrylamide, perfluoro propyl perfluor
One of the copolymer of vinyl ethers and polytetrafluoroethylene (PTFE), acrylonitrile multiple copolymer, sodium alginate and chitosan derivatives
Or it is a variety of.
Further, the first binder accounts for the 1~100% of the binder gross mass.
The present invention also provides a kind of lithium ion cell electrode pieces, use the above-mentioned binder system for lithium ion battery
It is formed.
The present invention also provides a kind of production methods of the electrode slice of lithium ion battery, comprising:
Binder, electrode active material and conductive agent are uniformly mixed slurrying；
Slurry obtained is coated and dried in collection liquid surface；The binder is above-mentioned for lithium ion battery
Binder.
Further, the electrode active material is positive electrode active materials or negative electrode active material；The positive-active material
Material is cobalt acid lithium, LiMn2O4, lithium nickelate, LiFePO4, phosphoric acid vanadium lithium, lithium manganese phosphate, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium lithium
One of oxide is a variety of；The negative electrode active material be natural graphite, artificial graphite, lithium titanate, silicon-carbon, graphene,
Tin-oxide, Sn-polymetallic orefield, kamash alloy, silicon-base alloy, germanium-base alloy, acieral, antimony-containing alloy and magnesium-based are closed
One of gold is a variety of.
Further, the conductive agent is one in conductive black, electrically conductive graphite, carbon fiber, carbon nanotube and graphene
Kind is a variety of.
The present invention also provides a kind of lithium ion battery, the lithium ion battery includes by the electricity of above-mentioned lithium ion battery
The electrode slice for the lithium ion battery that the production method of pole piece is prepared.
Compared with prior art, a kind of binder, electrode slice and lithium ion battery for lithium ion battery of the invention
Beneficial effect be:
The electrode slice of lithium ion battery of the invention is polymerize using acrylic acid with what the crosslinked polymerization reaction of crosslinking agent obtained
Object or its mixture with other binders reduce the cost for preparing lithium ion battery as binder, and obtained lithium from
The cycle life of sub- battery is longer, has excellent cycle performance.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, makees detailed
It is described as follows.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the charging and discharging curve figure of the lithium ion battery of the embodiment of the present invention 1；
Fig. 2 is the charging and discharging curve figure of the lithium ion battery of comparative example 1.
Specific embodiment
To facilitate the understanding of the present invention, it elaborates below with reference to the mode of embodiment to technical solution of the present invention,
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can be with
Similar improvement is done without violating the connotation of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
Term as used herein:
" by ... preparation " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing "
Or its any other deformation, it is intended that cover non-exclusionism includes.For example, composition, step, method comprising listed elements,
Product or device are not necessarily limited to those elements, but may include not expressly listed other elements or such composition, step
Suddenly, method, product or the intrinsic element of device.
Conjunction " by ... form " exclude any element that do not point out, step or component.If in claim,
This phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative
Except customary impurities.When phrase " by ... form " be rather than immediately following theme in the clause that appears in claim main body after
When, only it is limited to element described in the clause；Other elements be not excluded the claim as a whole it
Outside.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1~5 ", described range should be interpreted as including range " 1~4 ", " 1~3 ", " 1~2 ", " 1~2 and 4~
5 ", " 1~3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
"and/or" is used to indicate that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B).
A kind of binder for lithium ion battery, the binder include first binder, the first binder by
Acrylic monomers and the crosslinked polymerization reaction of crosslinking agent obtain, and the ratio of the amount of the substance of the acrylic monomers and crosslinking agent is 1:
1/20~1/60 such as 1:1/20,1:1/30,1:1/40,1:1/50 or 1:1/60.
Above-mentioned first binder contains such as flowering structure:
N is 100,101,102......720000 in formula.
Further, the crosslinking agent includes one or more double bond structures.
Preferably, the crosslinking agent is in allyl sucrose, allyl sucrose rouge, pentaerythrite allyl ether and acrylate
It is one or more.
Preferably, the binder further includes the second binder, and second binder is butadiene-styrene rubber (SBR), carboxylic first
Base cellulose (CMC), Kynoar (PVDF), polytetrafluoroethylene (PTFE) (PTFE), hydroxypropyl methyl cellulose (HPMC), polyethylene
Alcohol (PVA), polyacrylamide (PAM), perfluoro propyl perfluoroalkyl vinyl ether and the copolymer (PFA) of polytetrafluoroethylene (PTFE), acrylonitrile
One of multiple copolymer, sodium alginate and chitosan derivatives etc. are a variety of.
Above-mentioned acrylonitrile multiple copolymer can be enumerated as one of LA132, LA133 and LA135 or a variety of.
Preferably, the first binder account for the 1~100% of the binder gross mass such as 1%, 20%, 40%,
60%, 80% or 100% etc..
The present invention also provides a kind of lithium ion batteries made using the above-mentioned binder for lithium ion battery
Electrode slice.
The present invention also provides a kind of production methods of the electrode slice of lithium ion battery, comprising:
Binder, electrode active material and conductive agent are uniformly mixed slurrying；
Slurry obtained is coated and dried in collection liquid surface；The binder is above-mentioned for lithium ion battery
Binder.
Preferably, the active material is positive electrode active materials, and the positive electrode active materials are cobalt acid lithium, LiMn2O4, nickel
One of sour lithium, LiFePO4, phosphoric acid vanadium lithium, lithium manganese phosphate, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium oxidate for lithium are a variety of.
Preferably, the active material is negative electrode active material, and the negative electrode active material can be natural graphite, artificial stone
Ink, lithium titanate, silicon-carbon, graphene, tin-oxide, Sn-polymetallic orefield, kamash alloy, silicon-base alloy, germanium-base alloy, aluminium base
One of alloy, antimony-containing alloy and magnesium base alloy are a variety of.
Preferably, the conductive agent is one of conductive black, electrically conductive graphite, carbon fiber, carbon nanotube and graphene
Or it is a variety of.Wherein, conductive black can be enumerated as Super P or acetylene black etc.；Electrically conductive graphite can be enumerated as graphite KS6 etc..
The present invention also provides a kind of lithium ion battery, the lithium ion battery includes by the electricity of above-mentioned lithium ion battery
The electrode slice for the lithium ion battery that the production method of pole piece is prepared.
The electrode slice of lithium ion battery of the invention is polymerize using acrylic acid with what the crosslinked polymerization reaction of crosslinking agent obtained
Object or its mixture with other binders reduce the cost for preparing lithium ion battery as binder, and obtained lithium from
The cycle life of sub- battery is longer, has excellent cycle performance.
To facilitate the understanding of the present invention, below with reference to embodiment to further illustrate the technical scheme of the present invention.Applicant
Statement, the present invention illustrate detailed process equipment and process flow of the invention by following embodiments, but the present invention not office
It is limited to above-mentioned detailed process equipment and process flow, that is, does not mean that the present invention should rely on following detailed process equipments and technique stream
Cheng Caineng is implemented.It should be clear to those skilled in the art, any improvement in the present invention, to each original of product of the present invention
The equivalence replacement of material and addition, the selection of concrete mode of auxiliary element etc. all fall within protection scope of the present invention and open model
Within enclosing.
Embodiment 1
(1) 96.5kg artificial graphite, 1.5kg Super P, 1kg first binder and 1.5kg acrylonitrile multi-component copolymer are taken
Object LA132 is added in 100kg water, is dispersed with stirring uniformly, is obtained negative electrode slurry；Then the negative electrode slurry is taken to be coated uniformly on copper
Foil surface carries out roll-in again and cuts, obtains the negative electrode tab for lithium ion battery after drying.
(3) 98kg nickle cobalt lithium manganate, 0.4kg Super P, 0.8kg carbon nanotube and 0.8kg Kynoar is taken to be added
Into 100kg water, it is dispersed with stirring and uniformly obtains anode sizing agent；Then it takes the anode sizing agent to be coated uniformly on aluminium foil surface, dries
It carries out roll-in again afterwards and cuts, obtain based lithium-ion battery positive plate.
(3) battery core is made in above-mentioned negative electrode tab, positive plate and diaphragm in a winding manner, then battery core is placed in battery steel shell
It is interior, lithium ion battery is made.
Above-mentioned first binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, acrylic monomers and crosslinking
The ratio of the amount of the substance of agent is 1:1/20.
Embodiment 2
(1) it takes 95.5kg cobalt acid lithium, 2.5kg acetylene black and 2kg first binder to be added in 100kg water, is dispersed with stirring
Uniformly obtain anode sizing agent；It takes the anode sizing agent to be coated uniformly on aluminium foil surface, roll-in and is cut again after drying, obtain lithium ion
Battery anode slice.
(2) 96kg graphite, 1.5kg acetylene black, 1.5kg carboxymethyl cellulose and 1kg butadiene-styrene rubber is taken to be added to 100kg water
In, it is dispersed with stirring uniformly, obtains negative electrode slurry；Then it takes the negative electrode slurry to be coated uniformly on copper foil surface, is carried out again after drying
It roll-in and cuts, obtains the negative electrode tab for lithium ion battery.
(3) battery core is made in above-mentioned negative electrode tab, positive plate and diaphragm in a winding manner, then battery core is placed in battery steel shell
It is interior, lithium ion battery is made.
Above-mentioned first binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, acrylic monomers and crosslinking
The ratio of the amount of the substance of agent is 1:1/40.
Embodiment 3
The preparation of binder for lithium ion battery
(1) 96.5kg natural graphite, 1kg Super P, 0.5kg first binder, 1kg carboxymethyl cellulose and 1kg are taken
Butadiene-styrene rubber is added in 100kg water, is dispersed with stirring uniformly, is obtained negative electrode slurry；Then the negative electrode slurry is taken to be coated uniformly on
Copper foil surface carries out roll-in again and cuts, obtains the negative electrode tab for lithium ion battery after drying.
(2) 70kg nickle cobalt lithium manganate, 26kg nickle cobalt lithium manganate, 1.5kg acetylene black, 1kg KS6,0.5kg the first bonding are taken
Agent and 1kg acrylonitrile multiple copolymer LA132 are added in 100kg water, are dispersed with stirring and are uniformly obtained anode sizing agent；Then this is taken
Anode sizing agent is coated uniformly on aluminium foil surface, carries out roll-in after drying again and cuts, obtains based lithium-ion battery positive plate.
(3) battery core is made in above-mentioned negative electrode tab, positive plate and diaphragm in a winding manner, then battery core is placed in battery steel shell
It is interior, lithium ion battery is made.
Above-mentioned first binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, acrylic monomers and crosslinking
The ratio of the amount of the substance of agent is 1:1/60.
Comparative example 1
(1) 96.5kg artificial graphite, 0.7kg Super P, 1.3kg carboxymethyl cellulose and 1.5kg butadiene-styrene rubber is taken to add
Enter into 100kg water, is dispersed with stirring uniformly, obtains negative electrode slurry；Then it takes the negative electrode slurry to be coated uniformly on copper foil surface, dries
Roll-in is carried out again after dry and is cut, and the negative electrode tab for lithium ion battery is obtained.
(2) 96kg nickle cobalt lithium manganate, 2kg graphite, 1kg carbon nanotube, 1kg Kynoar is taken to be added in 100kg water,
It is dispersed with stirring and uniformly obtains anode sizing agent；Then it takes the anode sizing agent to be coated uniformly on aluminium foil surface, carries out roll-in after drying again
With cut, obtain based lithium-ion battery positive plate.
(3) battery core is made in above-mentioned negative electrode tab, positive plate and diaphragm in a winding manner, then battery core is placed in battery steel shell
It is interior, lithium ion battery is made.
Above-mentioned first binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, acrylic monomers and crosslinking
The ratio of the amount of the substance of agent is 1:1/60.
Charge-discharge test and cycle life, test-strips are carried out to the lithium ion battery of above-described embodiment 1~3 and comparative example 1
Part is as follows:
Constant-current constant-voltage charging: blanking voltage 4.2V, charging current 2600mA, cut-off current 100mA；
Environment temperature: 25 DEG C；
Constant-current discharge: blanking voltage 3.0V, discharge current 2600mA, 25 DEG C of environment temperature.
The lithium ion battery charging and discharging curve figure of the embodiment of the present invention 1 and comparative example 1 is as depicted in figs. 1 and 2.
The lithium ion battery of the embodiment of the present invention 1~3 and comparative example 1 carries out specific test result is as follows the table of charge-discharge test
Shown in 1.
Table 1
| Sample | Charging capacity/mAh | Discharge capacity/mAh | Cycle life/time |
| Embodiment 1 | 2489 | 2480 | > 300 |
| Embodiment 2 | 2496 | 2490 | > 300 |
| Embodiment 3 | 2496 | 2492 | > 300 |
| Comparative example 1 | 2493 | 2489 | 230 |
It can be obtained by above-mentioned table 1, the charge and discharge capacity and comparative example of lithium ion battery prepared by the embodiment of the present invention 1~3
The charge and discharge capacity of the lithium ion battery of 1 preparation is suitable；But the circulation longevity of lithium ion battery prepared by the embodiment of the present invention 1~3
The cycle life for ordering the lithium ion battery prepared compared with comparative example 1 is longer.
In conclusion the electrode slice of lithium ion battery of the invention is obtained using acrylic acid with the crosslinked polymerization reaction of crosslinking agent
The mixture of the polymer that arrives or itself and other binders reduces the cost for preparing lithium ion battery as binder, and
The cycle life of the lithium ion battery arrived is longer, has excellent cycle performance.
The above is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, inventive formulation and preparation process can have various modifications and variations.All within the spirits and principles of the present invention, institute
Any modification, equivalent substitution, improvement and etc. of work, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of binder for lithium ion battery, it is characterised in that: the binder includes first binder, and described first
Binder is obtained by acrylic monomers and the crosslinked polymerization reaction of crosslinking agent, the amount of the substance of the acrylic monomers and crosslinking agent
Ratio be 1:1/20~1/60；The first binder includes such as flowering structure:
。
2. the binder according to claim 1 for lithium ion battery, it is characterised in that: the crosslinking agent includes one
Or multiple double bond structures.
3. the binder according to claim 2 for lithium ion battery, it is characterised in that: the crosslinking agent is allyl
One of sucrose, allyl sucrose rouge, pentaerythrite allyl ether and acrylate are a variety of.
4. the binder according to claim 1 for lithium ion battery, it is characterised in that: the binder further includes
Two binders, second binder are butadiene-styrene rubber, carboxymethyl cellulose, Kynoar, polytetrafluoroethylene (PTFE), hydroxypropyl first
Copolymer, the acrylonitrile of base cellulose, polyvinyl alcohol, polyacrylamide, perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE)
One of multiple copolymer, sodium alginate and chitosan derivatives are a variety of.
5. the binder according to claim 1 for lithium ion battery, it is characterised in that: the first binder accounts for institute
State the 1~100% of binder gross mass.
6. a kind of lithium ion cell electrode piece, it is characterised in that: be used for lithium ion using Claims 1 to 55 is described in any item
The binder of battery makes to be formed.
7. a kind of production method of lithium ion cell electrode piece, it is characterised in that: include:
Binder, electrode active material and conductive agent are uniformly mixed slurrying；
Slurry obtained is coated and dried in collection liquid surface；The binder is the described in any item use of Claims 1 to 5
In the binder of lithium ion battery.
8. the production method of lithium ion cell electrode piece according to claim 7, it is characterised in that: the electrode activity material
Material is positive electrode active materials or negative electrode active material；The positive electrode active materials are cobalt acid lithium, LiMn2O4, lithium nickelate, ferric phosphate
One of lithium, phosphoric acid vanadium lithium, lithium manganese phosphate, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium oxidate for lithium are a variety of；The cathode is living
Property material be natural graphite, artificial graphite, lithium titanate, silicon-carbon, graphene, tin-oxide, Sn-polymetallic orefield, tinbase close
One of gold, silicon-base alloy, germanium-base alloy, acieral, antimony-containing alloy and magnesium base alloy are a variety of.
9. the production method of lithium ion cell electrode piece according to claim 7, it is characterised in that: the conductive agent is to lead
One of electric carbon black, electrically conductive graphite, carbon fiber, carbon nanotube and graphene are a variety of.
10. a kind of lithium ion battery, it is characterised in that: the lithium ion battery includes as described in any one of claim 7~9
Lithium ion battery electrode slice the electrode slice of lithium ion battery that is prepared of production method.
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| CN113054191A (en) * | 2019-12-26 | 2021-06-29 | 现代自动车株式会社 | Binder solution for all-solid-state battery and electrode slurry including the same |
| CN114361456A (en) * | 2022-01-11 | 2022-04-15 | 中国科学院化学研究所 | Water-based functional ion-conducting binder for lithium battery, preparation method and application |
| WO2023241104A1 (en) * | 2022-06-14 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | Electrode material, electrode sheet and preparation method therefor, and secondary battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350195A (en) * | 2019-06-24 | 2019-10-18 | 北京科技大学 | A kind of preparation method of negative electrode of lithium ion battery binder and negative electrode of lithium ion battery |
| CN113054191A (en) * | 2019-12-26 | 2021-06-29 | 现代自动车株式会社 | Binder solution for all-solid-state battery and electrode slurry including the same |
| CN114361456A (en) * | 2022-01-11 | 2022-04-15 | 中国科学院化学研究所 | Water-based functional ion-conducting binder for lithium battery, preparation method and application |
| CN114361456B (en) * | 2022-01-11 | 2023-05-05 | 中国科学院化学研究所 | Water-based functional ion-conducting binder for lithium battery, preparation method and application |
| WO2023241104A1 (en) * | 2022-06-14 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | Electrode material, electrode sheet and preparation method therefor, and secondary battery |
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