CN205933248U - Reduction -oxidation graphite alkene cladding spherical graphite anode material's process systems - Google Patents
Reduction -oxidation graphite alkene cladding spherical graphite anode material's process systems Download PDFInfo
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- CN205933248U CN205933248U CN201620776813.4U CN201620776813U CN205933248U CN 205933248 U CN205933248 U CN 205933248U CN 201620776813 U CN201620776813 U CN 201620776813U CN 205933248 U CN205933248 U CN 205933248U
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Abstract
The utility model relates to a reduction -oxidation graphite alkene cladding spherical graphite anode material's process systems, its characterized in that: including the reactor, preset container (3), filtration equipment (9), this reactor includes outer container (1), inner container (2), inner container (2) place in in outer container (1), vacuole formation between this outer container (1) and inner container (2), it is located to preset container (3) the upper reaches of reactor to with this reactor pipe connection, outer container (1) is equipped with inlet tube (6), outlet pipe (8), the bottom of inner container (2) is equipped with discharging pipe (7), and this discharging pipe (7) are connected with filtration equipment, be equipped with electromechanical agitating unit (5) on inner container (2). The utility model is suitable for a preparation reduction -oxidation graphite alkene cladding spherical graphite anode material.
Description
Technical field
This utility model is related to prepare the process unit that redox graphene coats spherical graphite cathode material.
Background technology
The main negative material of lithium ion battery is graphite, graphite and the positive electrode such as LiCoO2, LiMn2O4, LiNiO2
Matching performance is good, and output voltage can reach more than 3V, and in 0-0.25V, Li+ can occur deintercalation to react, in 0.5V up and down,
There is good platform, its specific capacity is more than 300 mAh/g, efficiency is also very high.However, graphite is due to layer edge carboxyl, carbonyl
Deng the presence of surface functional group, lead to form insoluble lithium salts, form covering thin in the passivation of electrode surface with electrolysis qualitative response
Film, referred to as solid electrolyte interface (solid electrolyte interface), abbreviation SEI film.Simultaneously in discharge and recharge
During, chemical functional group and solvent easily occur solvent to embed altogether, and then cause graphite linings to expand, peel off, or even efflorescence.In order to
Overcome these problems, it usually needs graphite is modified process.To Graphite Coating be effective modification processing method it
One, usually amorphous carbon material is coated on graphite granule surface, the precursor of usual amorphous carbon material has phenol
The low temperature pyrogenation material with carbon element such as urea formaldehyde, furane resins, Lauxite, epoxy resin, Colophonium.The interlamellar spacing ratio of amorphous carbon material
Graphite is big, can improve lithium ion diffusion wherein, thus improving the high rate during charging-discharging of graphite material.But it is no fixed
Shape material with carbon element cladding the most directly impact be that initial coulomb efficiency declines, poorly conductive and clad is thicker also has a strong impact on simultaneously
Capacity and high rate performance.In addition need 410 DEG C of high temperature in pitch-coating course of reaction, severe reaction conditions, relatively costly；By
The charcoal yield that resin pyrolysis obtains is low, enbrittles.Obtain that thinner thickness, bond strength be firm, electric conductivity is good accordingly, it is capable to no
Good charcoal bag coating, is the key that graphite cathode material obtains excellent electrochemical performance.
Content of the invention
Goal of the invention：In order to solve above-mentioned technical problem, this utility model provides a kind of easy to operate preparation oxygen reduction
Graphite alkene coats the process system of spherical graphite cathode material.
Technical scheme
A kind of redox graphene coats the process system of spherical graphite cathode material, including reactor, preset container
（3）, filter plant（9）；This reactor includes outer container（1）, inner pressurd vessel（2）；Described inner pressurd vessel（2）It is positioned over described outer container
（1）Interior, this outer container（1）With inner pressurd vessel（2）Between formed cavity；Described preset container（3）Positioned at the upstream of described reactor,
And be connected with this pipe reactor；Described outer container（1）It is provided with water inlet pipe（6）, outlet pipe（8）, described inner pressurd vessel（2）Bottom
It is provided with discharge nozzle（7）, this discharge nozzle（7）It is connected with filter plant；Described inner pressurd vessel（2）It is provided with dynamo-electric agitating device（5）.
Preferably, described filter plant is nanofiltration equipment.
Preferably, described filter plant is provided with filter cloth interlayer（10）, return duct（11）, filtered water inlet pipe（12）, filter
Outlet pipe（13）, this filtration outlet pipe（13）With described return duct（11）Connected by threeway；Described filter cloth interlayer（10）By institute
State filter plant and be separated into independent cavity.
Preferably, described filter cloth interlayer（10）Have multigroup.
Preferably, also including Vltrasonic device（4）, this Vltrasonic device（4）It is provided with ultrasonic rod（14）, this ultrasonic rod（14）Insert
Enter described inner pressurd vessel（2）In.
Beneficial effect：This utility model adopts reaction vessel, including outer container, inner pressurd vessel, when using, needs water-bath
During heating, open water inlet tube valve, water fills the cavity between inner pressurd vessel and outer container, is then heated to uniform temperature, water-bath
After end, by outlet pipe, water is drained it is not necessary to a dead lift, reduce artificial manipulation strength, and the material energy in reactor
Uniformly mix, the redox graphene ultimately forming coats spherical graphite cathode material uniform close, has good conduction
Property；This utility model can be chosen and adopt multigroup filter cloth interlayer according to technique needs, and replaceable cleaning filter cloth interlayer, convenient behaviour
Make.
Brief description
Fig. 1 is this utility model structural representation.
Specific embodiment
With reference to specific embodiment, this utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than restriction scope of the present utility model.
As Fig. 1, a kind of redox graphene coats the process system of spherical graphite cathode material, including reactor, in advance
Put container 3, filter plant 9；This reactor includes outer container 1, inner pressurd vessel 2；Described inner pressurd vessel 2 is positioned in described outer container 1,
Form cavity between this outer container 1 and inner pressurd vessel 2；Described preset container 3 be located at described reactor upstream, and with this reactor
Pipeline connects；Described outer container 1 is provided with water inlet pipe 6, outlet pipe 8, and the bottom of described inner pressurd vessel 2 is provided with discharge nozzle 7, this discharge nozzle
7 are connected with filter plant；Described inner pressurd vessel 2 is provided with dynamo-electric agitating device 5.
In the present embodiment, described filter plant is nanofiltration equipment, and described filter plant is provided with filter cloth interlayer 10, return duct
11st, filtered water inlet pipe 12, filtration outlet pipe 13, this filtration outlet pipe 13 is connected by threeway with described return duct 11；Described filter
Described filter plant is separated into independent cavity by cloth interlayer 10, and described filter cloth interlayer 10 has multigroup, also includes Vltrasonic device 4,
This Vltrasonic device 4 is provided with ultrasonic excellent 14, and this ultrasonic excellent 14）Insert in described inner pressurd vessel 2.
This utility model adopts reaction vessel, including outer container, inner pressurd vessel, when using, when needing heating in water bath, opens
Water inlet tube valve, water fills the cavity between inner pressurd vessel and outer container, is then heated to uniform temperature, after water-bath terminates, passes through
Outlet pipe is drained by water it is not necessary to a dead lift, reduces artificial manipulation strength, and the material in reactor can uniformly mix,
The redox graphene that end form becomes coats spherical graphite cathode material uniform close, has good electric conductivity；This practicality is new
Type can be chosen and adopt multigroup filter cloth interlayer according to technique needs, and replaceable cleaning filter cloth interlayer, convenient operation.
Claims (5)
1. a kind of redox graphene coat spherical graphite cathode material process system it is characterised in that：Including reactor,
Preset container（3）, filter plant（9）；This reactor includes outer container（1）, inner pressurd vessel（2）；Described inner pressurd vessel（2）It is positioned over institute
State outer container（1）Interior, this outer container（1）With inner pressurd vessel（2）Between formed cavity；Described preset container（3）Positioned at described reaction
The upstream of device, and be connected with this pipe reactor；Described outer container（1）It is provided with water inlet pipe（6）, outlet pipe（8）, described inner pressurd vessel
（2）Bottom be provided with discharge nozzle（7）, this discharge nozzle（7）It is connected with filter plant；Described inner pressurd vessel（2）It is provided with dynamo-electric stirring
Device（5）.
2. redox graphene according to claim 1 coats the process system of spherical graphite cathode material, its feature
It is：Described filter plant is nanofiltration equipment.
3. redox graphene according to claim 1 coats the process system of spherical graphite cathode material, its feature
It is：Described filter plant is provided with filter cloth interlayer（10）, return duct（11）, filtered water inlet pipe（12）, filter outlet pipe（13）, should
Filter outlet pipe（13）With described return duct（11）Connected by threeway；Described filter cloth interlayer（10）Described filter plant is separated
Become independent cavity.
4. redox graphene according to claim 3 coats the process system of spherical graphite cathode material, its feature
It is：Described filter cloth interlayer（10）Have multigroup.
5. redox graphene according to claim 1 coats the process system of spherical graphite cathode material, its feature
It is：Also include Vltrasonic device（4）, this Vltrasonic device（4）It is provided with ultrasonic rod（14）, this ultrasonic rod（14）Insert described inner pressurd vessel
（2）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776813.4U CN205933248U (en) | 2016-07-22 | 2016-07-22 | Reduction -oxidation graphite alkene cladding spherical graphite anode material's process systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776813.4U CN205933248U (en) | 2016-07-22 | 2016-07-22 | Reduction -oxidation graphite alkene cladding spherical graphite anode material's process systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000371A (en) * | 2022-06-06 | 2022-09-02 | 深圳材启新材料有限公司 | Preparation method of graphene-coated graphite powder |
-
2016
- 2016-07-22 CN CN201620776813.4U patent/CN205933248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000371A (en) * | 2022-06-06 | 2022-09-02 | 深圳材启新材料有限公司 | Preparation method of graphene-coated graphite powder |
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