CN106684340A - Lithium ion battery positive paste and preparation method thereof - Google Patents
Lithium ion battery positive paste and preparation method thereof Download PDFInfo
- Publication number
- CN106684340A CN106684340A CN201510753603.3A CN201510753603A CN106684340A CN 106684340 A CN106684340 A CN 106684340A CN 201510753603 A CN201510753603 A CN 201510753603A CN 106684340 A CN106684340 A CN 106684340A
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- Prior art keywords
- ion battery
- lithium ion
- parts
- lithium
- battery anode
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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
- H01M4/364—Composites as mixtures
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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
- H01M4/36—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
- 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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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 & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lithium ion battery positive paste and a preparation method thereof. The lithium ion battery positive paste comprises based on parts by weight: 87-93 parts of positive active substance, 2.6-7 parts of conductive agent, 3-5 parts of binding agent and 49-60 parts of solvent, wherein the positive active substance comprises lithium nickel manganese cobalt and lithium iron phosphate; based on parts by weight, the lithium nickel manganese cobalt accounts for 6-10% of the lithium iron phosphate; the binding agent is one of polyvinylidene fluoride (PVDF) resin or polyvinylidene fluoride; the conductive agent is one or more of a carbon nanotube, carbon black or graphite; and the solvent is N-methyl pyrrolidone. By the lithium ion battery positive paste and the preparation method thereof, the lithium iron phosphate and the lithium nickel manganese cobalt are mixed according to a certain proportion to prepare the lithium ion battery positive paste, and the safety of a battery is improved by means of high safety performance of the lithium iron phosphate; and the lithium nickel manganese cobalt is added into the lithium iron phosphate, the defects of low content and low electrical conductivity of the lithium iron phosphate are overcome to a certain extent, the electrical conductivity of the battery is improved, and large-current charging and discharging of the battery can be achieved.
Description
Technical field
The present invention relates to a kind of lithium ion battery anode glue size and preparation method thereof, belongs to lithium ion battery
Preparing technical field.
Background technology
With the progress of society, people for the requirement more and more higher of the energy, lithium ion battery are
A kind of novel energy storage cell grown up after 20 century 70s, due to high-energy, length
The advantages of life-span, low consumption, nuisanceless, memory-less effect, lithium ion battery progressively shows
Big advantage, is widely applied to the fields such as phone, computer, mobile phone, lithium ion battery mainly by
Positive electrode, electrolyte and negative material composition, at present for lithium ion battery negative material it is main
Have material with carbon element, alloy material, transition metal oxide, nitride and tin-based oxide etc., graphite with
And the material with carbon element through being modified is negative material the most frequently used at present, in brief, lithium ion battery is negative
The actual capacity of pole material has breached the capacity of extensive graphite cathode, and the development of positive electrode
But it is relatively slow, so as to constrain the development speed of lithium ion battery, therefore for lithium ion
For battery, the research and development of positive electrode seems even more particularly important, existing lithium ion battery
Positive electrode mainly has electrodeless metal compound material, organic molecule material and polymeric material three major types,
Wherein inorganic metal compound material has developed into the metal of the second filial generation from the metal sulfide of the first generation
Oxide, at present using more metal oxide cathode material be cobalt acid lithium, LiFePO4, cobalt acid
The preparation technology of lithium is complex, and preparation condition has high demands, and the safety of LiFePO4 is good, but which is led
Electric rate is low, and volume and capacity ratio is low.
The content of the invention
(1) technical problem to be solved
To solve the above problems, the present invention proposes a kind of lithium ion battery anode glue size and its preparation side
Method, improves the safety of battery, improves the conductivity of battery.
(2) technical scheme
A kind of formula of lithium ion battery anode glue size of the present invention, includes by weight：
Positive active material：87～93 parts；
Conductive agent：2.6～7 parts；
Binding agent：3～5 parts；
Solvent：49～60 parts.
Further, the positive active material is made up of nickle cobalt lithium manganate and LiFePO4；By weight
Part, the nickle cobalt lithium manganate accounts for the 6%～10% of LiFePO4.
Further, the binding agent is PVDF resins or the one kind in Kynoar.
Further, the conductive agent is one or more in CNT, carbon black or graphite.
Further, the solvent is N-Methyl pyrrolidone.
A kind of preparation method of lithium ion battery anode glue size, comprises the following steps：
The first step：Active substance is respectively placed in the drying baker under vacuum condition, is toasted 3～5 hours,
Baking temperature is controlled at 120 DEG C, is fixed material I；
Second step：Solid matter I is dried into air cooling to room temperature using -30 DEG C, material is fixed
II；
3rd step, binding agent is added into the blender equipped with N-Methyl pyrrolidone solvent, true
Stir 2～5 hours under empty condition, fully dissolve to binding agent, stand 1 hour, obtain solution I；
4th step, conductive agent is added into solution I, stirs 1 hour, obtain under vacuum condition
Solution II；
5th step, fixed substance II is divided 3～5 times and is added into solution II, true after adding every time
Empty stirring condition is lower 30 minutes, finally stirs 2～5 hours under vacuum again, makes anode sizing agent.
(3) beneficial effect
Compared with prior art, lithium ion battery anode glue size of the invention and preparation method thereof, by phosphorus
Sour ferrum lithium is mixed with lithium battery anode slurry according to a certain ratio with nickle cobalt lithium manganate, using LiFePO4
High safety performance, improve the safety of battery, LiFePO4 add nickle cobalt lithium manganate, from one
Determine to improve that LiFePO4 capacity is low in degree, the low shortcoming of conductivity improves the conductivity of battery,
Battery high current ground charging and discharging can be made.
Specific embodiment
A kind of formula of lithium ion battery anode glue size, includes by weight：
Positive active material：87～93 parts；
Conductive agent：2.6～7 parts；
Binding agent：3～5 parts；
Solvent：49～60 parts.
Wherein, the positive active material is made up of nickle cobalt lithium manganate and LiFePO4；By weight,
The nickle cobalt lithium manganate accounts for the 6%～10% of LiFePO4.
The binding agent is PVDF resins or the one kind in Kynoar.
The conductive agent is one or more in CNT, carbon black or graphite.
The solvent is N-Methyl pyrrolidone.
A kind of preparation method of lithium ion battery anode glue size, comprises the following steps：
The first step：Active substance is respectively placed in the drying baker under vacuum condition, is toasted 3～5 hours,
Baking temperature is controlled at 120 DEG C, is fixed material I；
Second step：Solid matter I is dried into air cooling to room temperature using -30 DEG C, material is fixed
II；
3rd step, binding agent is added into the blender equipped with N-Methyl pyrrolidone solvent, true
Stir 2～5 hours under empty condition, fully dissolve to binding agent, stand 1 hour, obtain solution I；
4th step, conductive agent is added into solution I, stirs 1 hour, obtain under vacuum condition
Solution II；
5th step, fixed substance II is divided 3～5 times and is added into solution II, true after adding every time
Empty stirring condition is lower 30 minutes, finally stirs 2～5 hours under vacuum again, makes anode sizing agent.
Embodiment described above is only that the preferred embodiment of the present invention is described, not right
The spirit and scope of the present invention are defined.On the premise of without departing from design concept of the present invention, ability
Various modifications and improvement that domain ordinary person is made to technical scheme, all should drop into this
Bright protection domain, the technology contents that the present invention is claimed all are documented in claims
In.
Claims (6)
1. a kind of formula of lithium ion battery anode glue size, it is characterised in that：Include by weight：
Positive active material：87～93 parts；
Conductive agent：2.6～7 parts；
Binding agent：3～5 parts；
Solvent：49～60 parts.
2. the formula of lithium ion battery anode glue size according to claim 1, it is characterised in that：
The positive active material is made up of nickle cobalt lithium manganate and LiFePO4；By weight, the nickel cobalt manganese
Sour lithium accounts for the 6%～10% of LiFePO4.
3. the formula of lithium ion battery anode glue size according to claim 1, it is characterised in that：
The binding agent is PVDF resins or the one kind in Kynoar.
4. the formula of lithium ion battery anode glue size according to claim 1, it is characterised in that：
The conductive agent is one or more in CNT, carbon black or graphite.
5. the formula of lithium ion battery anode glue size according to claim 1, it is characterised in that：
The solvent is N-Methyl pyrrolidone.
6. a kind of preparation method of lithium ion battery anode glue size, it is characterised in that：Comprise the following steps：
The first step：Active substance is respectively placed in the drying baker under vacuum condition, is toasted 3～5 hours,
Baking temperature is controlled at 120 DEG C, is fixed material I；
Second step：Solid matter I is dried into air cooling to room temperature using -30 DEG C, material is fixed
II；
3rd step, binding agent is added into the blender equipped with N-Methyl pyrrolidone solvent, true
Stir 2～5 hours under empty condition, fully dissolve to binding agent, stand 1 hour, obtain solution I；
4th step, conductive agent is added into solution I, stirs 1 hour, obtain under vacuum condition
Solution II；
5th step, fixed substance II is divided 3～5 times and is added into solution II, true after adding every time
Empty stirring condition is lower 30 minutes, finally stirs 2～5 hours under vacuum again, makes anode sizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753603.3A CN106684340A (en) | 2015-11-05 | 2015-11-05 | Lithium ion battery positive paste and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753603.3A CN106684340A (en) | 2015-11-05 | 2015-11-05 | Lithium ion battery positive paste and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106684340A true CN106684340A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753603.3A Pending CN106684340A (en) | 2015-11-05 | 2015-11-05 | Lithium ion battery positive paste and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655795A (en) * | 2017-09-19 | 2018-02-02 | 合肥国轩高科动力能源有限公司 | It is a kind of to judge that lithium ion battery closes the qualified method of slurry slurry specific surface area |
| CN108258207A (en) * | 2017-12-25 | 2018-07-06 | 风帆有限责任公司 | A kind of anode of fast charging and discharging type high power lithium ion cell applies cream and production method |
| CN114551840A (en) * | 2022-02-26 | 2022-05-27 | 淮北市千锂鸟新能源科技有限公司 | Positive electrode slurry capable of improving safety performance of lithium ion battery and preparation method thereof |
| CN115207359A (en) * | 2022-09-13 | 2022-10-18 | 广州云通锂电池股份有限公司 | Lithium ion battery anode slurry, preparation method thereof and lithium ion battery |
-
2015
- 2015-11-05 CN CN201510753603.3A patent/CN106684340A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655795A (en) * | 2017-09-19 | 2018-02-02 | 合肥国轩高科动力能源有限公司 | It is a kind of to judge that lithium ion battery closes the qualified method of slurry slurry specific surface area |
| CN108258207A (en) * | 2017-12-25 | 2018-07-06 | 风帆有限责任公司 | A kind of anode of fast charging and discharging type high power lithium ion cell applies cream and production method |
| CN108258207B (en) * | 2017-12-25 | 2020-06-23 | 风帆有限责任公司 | Positive electrode coating paste of quick-charging and quick-discharging type high-power lithium ion battery and manufacturing method |
| CN114551840A (en) * | 2022-02-26 | 2022-05-27 | 淮北市千锂鸟新能源科技有限公司 | Positive electrode slurry capable of improving safety performance of lithium ion battery and preparation method thereof |
| CN115207359A (en) * | 2022-09-13 | 2022-10-18 | 广州云通锂电池股份有限公司 | Lithium ion battery anode slurry, preparation method thereof and lithium ion battery |
| CN115207359B (en) * | 2022-09-13 | 2022-12-20 | 广州云通锂电池股份有限公司 | Lithium ion battery anode slurry, preparation method thereof and lithium ion battery |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |