CN106941178A - A kind of fluorocarbons and its preparation method and application - Google Patents
A kind of fluorocarbons and its preparation method and application Download PDFInfo
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- CN106941178A CN106941178A CN201710334169.4A CN201710334169A CN106941178A CN 106941178 A CN106941178 A CN 106941178A CN 201710334169 A CN201710334169 A CN 201710334169A CN 106941178 A CN106941178 A CN 106941178A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 42
- 239000011737 fluorine Substances 0.000 claims abstract description 29
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 238000003682 fluorination reaction Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000010406 cathode material Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 34
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims description 4
- BLIQUJLAJXRXSG-UHFFFAOYSA-N 1-benzyl-3-(trifluoromethyl)pyrrolidin-1-ium-3-carboxylate Chemical compound C1C(C(=O)O)(C(F)(F)F)CCN1CC1=CC=CC=C1 BLIQUJLAJXRXSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910015900 BF3 Inorganic materials 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- OFWAQHIHBVKCEV-UHFFFAOYSA-N [N].FB(F)F Chemical compound [N].FB(F)F OFWAQHIHBVKCEV-UHFFFAOYSA-N 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003575 carbonaceous material Substances 0.000 description 10
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- QKCGXXHCELUCKW-UHFFFAOYSA-N n-[4-[4-(dinaphthalen-2-ylamino)phenyl]phenyl]-n-naphthalen-2-ylnaphthalen-2-amine Chemical compound C1=CC=CC2=CC(N(C=3C=CC(=CC=3)C=3C=CC(=CC=3)N(C=3C=C4C=CC=CC4=CC=3)C=3C=C4C=CC=CC4=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=C21 QKCGXXHCELUCKW-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- -1 rests in Japan Chemical compound 0.000 description 2
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical class C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- GVGCUCJTUSOZKP-UHFFFAOYSA-N nitrogen trifluoride Chemical compound FN(F)F GVGCUCJTUSOZKP-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
- FQFKTKUFHWNTBN-UHFFFAOYSA-N trifluoro-$l^{3}-bromane Chemical compound FBr(F)F FQFKTKUFHWNTBN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01M4/5835—Comprising fluorine or fluoride salts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of fluorocarbons and its preparation method and application, the fluorocarbons carries out fluorination to it by chemical reaction method by carbon dust and is prepared, and the mass percent of each element is respectively in the carbon dust：C is that 80%~95%, N is that 0%~20%, H is that 0%~5%, O is 0%~10%；Fluorocarbons preparation method is as follows：（1）Carbon dust is put into fluorizating apparatus；（2）Fluorizating apparatus are vacuumized, Fluorine source is passed through, 6~24h are reacted under 400~700 DEG C and 100~500kPa, you can obtain fluorocarbons.The present invention carries out reacting obtained fluorocarbons under certain conditions using the carbon dust with different component content and Fluorine source, such a preparation method is simple, and high voltage characteristic and the relatively stable fluorocarbons of structure can be obtained, when it is as cathode materials for lithium battery, its discharge voltage plateau is apparently higher than existing commercial fluorographite, with very big market application foreground.
Description
Technical field
The present invention relates to new material technology field, and in particular to a kind of fluorocarbons and preparation method thereof and in lithium cell cathode
Application on material, ultracapacitor.
Background technology
Under the promotion of social development demand and potential market demand, the chemistry based on new ideas, new material and new technology
Power supply new system is continued to bring out.It is well known that battery is the change that will be stored by electrochemical redox reaction in active material
Can directly pass through the device for being converted into electric energy of electronics.The output voltage and energy density of battery depend primarily on positive pole
With the reactivity material of negative pole, and the electronegativity of electrode reaction active material be influence battery performance most important factor.
Fluorine is very unique element, and positioned at periodic table of elements upper right side, it assigns fluorine material and fluorine-containing chemical is permitted
More excellent property and function, the high speed developments such as national defence, information, automobile and Life Engineering industry and national economy it is each
Individual field, increasingly plays materials for support and linkage effect, and fluorine chemical industry is classified as by country encourages the high-tech of development to produce
Industry.
Because fluorine gas is poisonous, and oxidisability is too strong, so typically using fluoride as positive electrode, such as fluorination carbon materials
Material.The preparation method of fluorocarbons mainly has high temperature gaseous fluoridizing method, low temperature fluorate method, plasma method and electrolytic synthesis etc..
The method with industrialization is high temperature gaseous fluoridizing method at present, because this technique is by the high hypertoxic elementary gas fluorine of activity
As critical materials, and it is less on the key technology foreign literature report of fluorinated carbon material, therefore synthesis of fluorinated carbon has one
Fixed danger, prepares difficulty higher.The technical matters of current synthesis of fluorinated carbon mainly rests in Japan, the U.S. and Russia,
And started late in China field, belong to the critical function high-technology field newly risen.Fluorinated carbon material is fluorine and carbon
The graphite intercalation chemicals of generation are directly reacted at high temperature.The fluorination of carbon material will be traced back to decades ago, from earliest fluorine
Graphite is to fluorinated fullerene, fluorination SWCN, fluorination multi-walled carbon nano-tubes, then to fluorinated graphene.By tens
The development in year, has been obtained for the fluorinated carbon material of a variety of different structures and different physicochemical properties.Carbon material structure is not
Together, the difference of fluorinated carbon material structure will be caused, and then makes its physical and chemical performance different.Research is found, partially fluorinated
There is the high voltage and high power characteristic higher than 0.3 ~ 0.5V of fluorographite with the fluorinated carbon material of half ionization, this research is most
French scientist professor Hamwi in 1989 early can be traced back to pass through in F2+HF+IF5Graphite is fluorinated under mixed system,
The fluorinated carbon material with high voltage characteristics is prepared under room temperature condition, but because this technique is prepared at room temperature, it is made
Standby fluorinated carbon material structural instability, storge quality is poor, so that its industrialized development is limited, therefore it is a kind of to need exploitation badly
Preparation with industrialization prospect has high voltage characteristics and constitutionally stable fluorocarbons and its preparation technology.
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of fluorocarbons and preparation method thereof and in lithium electricity
Application on pond, ultracapacitor, the preparation method is simple, and obtained fluorocarbons has high voltage characteristic, and its structure
It is relatively stable, with preferable industrialization prospect.
It is an object of the present invention to provide a kind of fluorocarbons, its concrete technical scheme is as follows：A kind of fluorocarbons, it is described
Fluorocarbons carries out fluorination to it by chemical reaction method by carbon dust and is prepared, the mass percent of each element point in the carbon dust
It is not：C is that 80%~98%, N is that 0%~10%, H is that 0%~5%, O is 0%~10%；Preferably：C be 85%~95%, N be 0%~
6%, H are that 0%~3%, O is 0%~6%；More preferably：C is that 90%~95%, N is that 2%~6%, H is that 0%~3%, O is 1%~5%.
Further, the mass percent of each element is respectively in obtained fluorocarbons：C is 40% for 35%~60%, F
~65%.
Further, the chemical reaction method uses high temperature gaseous fluoridizing method, it would however also be possible to employ graft process, hydro-thermal stripping method
Deng.
Another object of the present invention is to provide a kind of preparation method for preparing above-mentioned fluorocarbons, its technical scheme is as follows：
A kind of preparation method of fluorocarbons, comprises the following steps：
Step 1：Carbon dust is put into fluorizating apparatus, wherein, the mass percent of each element is respectively in carbon dust：C be 80%~
98%, N are that 0%~10%, H is that 0%~5%, O is 0%~10%；
Step 2：Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, is passed through Fluorine source, at 400~700 DEG C
With 6~24h of reaction under 100~500kPa, you can obtain fluorocarbons.
Further, the Fluorine source is the one or more in fluorine gas, fluorine gas/inert gas gaseous mixture, gas phase fluorination thing.
Further, the purity of the fluorine gas is 98%~99.9%.
Further, the inert gas in the fluorine gas/inert gas gaseous mixture is one kind in nitrogen, helium, argon gas
Or it is a variety of.
Further, the gas phase fluorination thing is preferably Nitrogen trifluoride, boron trifluoride or xenon difluoride or trifluoro
Change the one or more in phosphorus, bromine trifluoride, phosphorus trichloride, vikane, thionyl fluoride etc..
A further object of the present invention is to provide, and obtained fluorocarbons is applied in cathode materials for lithium battery or super electricity
On container, it can also apply in terms of high temperature coating, anti-wear lubricating coating.
Using above-mentioned technological means, the invention has the advantages that：Using the carbon dust with different component content（Institute
The carbon amounts contained is relatively low）Carry out reacting obtained fluorocarbons under certain conditions with Fluorine source, such a preparation method is simple, Er Qieke
Obtain high voltage characteristic and the relatively stable fluorocarbons of structure, when it is as cathode materials for lithium battery, its discharge voltage plateau
More than 2.9 V（vs.Li+/Li）, hence it is evident that higher than the V of discharge voltage plateau 2.6 of existing commercial fluorographite（vs.Li+/Li）,
With very big market application foreground.
Brief description of the drawings
Fig. 1 uses fluorocarbons for the present invention（C is that 44.1%, F is 55.9%）The different electric currents for preparing lithium battery for negative electrode are close
Spend discharge curve；
Wherein, abscissa is specific capacity（Specific capacity/mAh·g-1）, ordinate is current potential Potential, V
(vs. Li+/Li)。
Embodiment
With reference to some specific embodiments, the present invention will be further described.
Embodiment 1
（1）10g carbon dusts are put into fluorizating apparatus, its C content 80%, N content 8%, H content 5%, O content is 7%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, fluorinated gas Nitrogen trifluoride is passed through, kept
The kPa of pressure 200, reacts 12 h under the conditions of 450 DEG C, obtains 13.9 g fluorocarbons, wherein C content is 57.6 %, and F contents are
42.4 %, discharge voltage plateau is 3.1 V (vs. Li+/Li)。
Embodiment 2
（1）10g carbon dusts are put into fluorizating apparatus, its C content 85%, N content 8%, H content 4%, O content is 3%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, fluorinated gas Nitrogen trifluoride is passed through, kept
The kPa of pressure 300, reacts 16 h under the conditions of 550 DEG C, obtains 17.4 g fluorocarbons, wherein C content is 48.8 %, and F contents are
51.2%, discharge voltage plateau is 3.0 V (vs. Li+/Li)。
Embodiment 3
（1）10g carbon dusts are put into fluorizating apparatus, its C content 94%, N content 4%, H content 2%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, fluorinated gas Nitrogen trifluoride is passed through, kept
The kPa of pressure 400, reacts 16 h under the conditions of 600 DEG C, obtains 21.3 g fluorocarbons, wherein C content is 44.1 %, and F contents are
55.9%, discharge voltage plateau is 3.0 V (vs. Li+/Li)。
Embodiment 4
（1）10g carbon dusts are put into fluorizating apparatus, its C content 95%, N content 4%, H content 1%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, is passed through fluorinated gas NF3, keep pressure
500 kPa, react 24 h under the conditions of 650 DEG C, obtain 25.5 g fluorocarbons, wherein C content is 37.2 %, and F contents are 62.8
%, discharge voltage plateau is 2.9 V (vs. Li+/Li)。
Embodiment 5
（1）10g carbon dusts are put into fluorizating apparatus, its C content 80%, N content 5%, H content 5%, O content is 10%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, be passed through content of fluorine be 20% fluorine gas/
Argon gas mixed gas, keeps the kPa of pressure 300,12 h is reacted under the conditions of 550 DEG C, 13.9 g fluorocarbons are obtained, wherein C contains
Measure as 57.4 %, F contents are 42.6 %, discharge voltage plateau is 3.1 V (vs. Li+/Li)。
Embodiment 6
（1）10g carbon dusts are put into fluorizating apparatus, its C content 93%, N content 2%, H content 2%, O content is 3%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, be passed through content of fluorine be 20% fluorine gas/
Argon gas mixed gas, keeps the kPa of pressure 300,12 h is reacted under the conditions of 600 DEG C, 21.3 g fluorocarbons are obtained, wherein C contains
Measure as 43.6 %, F contents are 56.4%, discharge voltage plateau is 3.1 V (vs. Li+/Li)。
Embodiment 7
（1）10g carbon dusts are put into fluorizating apparatus, its C content 90%, N content 5%, H content 2%, O content is 3%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, the fluorine gas that purity is 99.9% is passed through, protects
The kPa of pressure 400 is held, 12 h are reacted under the conditions of 600 DEG C, 21.1 g fluorocarbons are obtained, wherein C content is 42.7 %, F contents
For 57.3 %, discharge voltage plateau is 2.9 V (vs. Li+/Li)。
Embodiment 8
（1）10g carbon dusts are put into fluorizating apparatus, its C content 93%, N content 2%, H content 2%, O content is 3%；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, be passed through fluorinated content be 20% fluorine gas/
Nitrogen mixed gas, keeps the kPa of pressure 500,12 h is reacted under the conditions of 700 DEG C, 24.6 g fluorocarbons are obtained, wherein C contains
Measure as 37.8 %, F contents are 62.2 %, discharge voltage plateau is 2.9 V (vs. Li+/Li)。
Embodiment 9
（1）10g carbon dusts are put into fluorizating apparatus, its C is that 3%, H is that 1%, O is 2% for 94%, N；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, fluorinated gas Nitrogen trifluoride is passed through, kept
The kPa of pressure 500, reacts 12 h under the conditions of 700 DEG C, obtains 26.7 g fluorocarbons, and wherein C content is for 35.2%, F contents
64.8%, discharge voltage plateau is 2.9 V (vs. Li+/Li)。
Embodiment 10
（1）10g carbon dusts are put into fluorizating apparatus, its C is that 3%, H is that 1%, O is 2% for 94%, N；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, fluorinated gas xenon difluoride is passed through, kept
The kPa of pressure 500, reacts 12 h under the conditions of 600 DEG C, obtains 20.8 g fluorocarbons, and wherein C content is for 45.1%, F contents
54.9%, discharge voltage plateau is 3.0 V (vs. Li+/Li)。
Choose the fluorocarbons obtained by above-described embodiment 3 and carry out performance test, step is as follows：
（1）Electrode is prepared using coating method：Count in mass ratio, weigh Fuization Tan ﹕ Yi Que Hei ﹕ binding agents=﹕ 5 of 85 ﹕ 10, ball
Mill is mixed, and is coated on treated aluminium foil, compressing under 20MPa in 110 DEG C of drying.
（2）Using fluorination carbon electrode obtained above as negative electrode, lithium metal is anode, and Cellgard 2400 is barrier film, electrolysis
Liquid is 1mol/L LiPF6Vinyl carbonate（EC）/ dimethyl carbonate（DMC）Solution, is assembled into CR2025 button cells,
Constant current electrochemical property test is carried out on LAND battery test systems (Wuhan Land Electronic Co., Ltd.), is discharged by electricity
Position is 1.5 V（vs. Li+/Li）, test result difference is as shown in Figure 1（Fig. 1 is the test of the fluorocarbons obtained by embodiment 3
As a result）.
From Fig. 1, it could be assumed that：Under the conditions of current density is 20 mA/g, the specific energy with 2113 Wh/kg,
Already close to the Wh/kg of theoretical specific energy 2180 of fluorographite, its voltage platform can reach 3.0V, higher than fluorographite
2.6V；Current density be 2A/g under the conditions of, the specific energy with 1456 Wh/kg；Drawn from above-mentioned test result, by above-mentioned
Fluorocarbons prepared by method has higher specific energy and high-specific-power discharge performance, and more commercialized fluorographite has significantly
Lifting.
The test of correlated performance has similarly been carried out to the fluorocarbons obtained by other embodiments, has as a result all been shown than existing
There is fluorographite that there is higher voltage platform, specific energy and specific power.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details to this hair
It is bright to make a variety of changes, it is protection scope of the present invention.
Claims (10)
1. a kind of fluorocarbons, it is characterised in that the fluorocarbons fluorination preparation is carried out to it by chemical reaction method by carbon dust and
, the mass percent of each element is respectively in the carbon dust：C is that 80%~98%, N is that 0%~10%, H is that 0%~5%, O is 0%
~10%.
2. a kind of fluorocarbons as claimed in claim 1, it is characterised in that the quality percentage of each element in obtained fluorocarbons
Than being respectively：C is that 35%~60%, F is 40%~65%.
3. a kind of fluorocarbons as claimed in claim 1, it is characterised in that the chemical reaction method uses high temperature gas phase fluorination
Method.
4. a kind of preparation method of fluorocarbons as claimed any one in claims 1 to 3, it is characterised in that including following step
Suddenly：
（1）Carbon dust is put into fluorizating apparatus；
（2）Fluorizating apparatus are vacuumized, its vacuum is reached -0.01 MPa, is passed through Fluorine source, at 400~700 DEG C and
6~24h is reacted under 100~500kPa, you can obtain fluorocarbons.
5. a kind of preparation method of fluorocarbons as claimed in claim 4, it is characterised in that the Fluorine source is fluorine gas, fluorine gas/lazy
One or more in property gas mixture, gas phase fluorination thing.
6. a kind of preparation method of fluorocarbons as claimed in claim 5, it is characterised in that the purity of the fluorine gas is 98%~
99.9%。
7. a kind of preparation method of fluorocarbons as claimed in claim 5, it is characterised in that the fluorine gas/inert gas mixing
Inert gas in gas is the one or more in nitrogen, helium, argon gas.
8. a kind of preparation method of fluorocarbons as claimed in claim 5, it is characterised in that the gas phase fluorination thing is borontrifluoride
Nitrogen, boron trifluoride or xenon difluoride.
9. application of the fluorocarbons as claimed any one in claims 1 to 3 on as cathode materials for lithium battery.
10. application of the fluorocarbons as claimed any one in claims 1 to 3 on ultracapacitor.
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| CN108726504A (en) * | 2018-05-18 | 2018-11-02 | 叶荣森 | A kind of high efficiency preparation method of fluorinated fullerene |
| CN109036871A (en) * | 2018-09-03 | 2018-12-18 | 河南克莱威纳米碳材料有限公司 | A kind of lithium-ion capacitor negative electrode material and preparation method thereof and a kind of lithium-ion capacitor |
| CN109216698A (en) * | 2018-09-11 | 2019-01-15 | 山东理工大学 | A kind of preparation method of lithium fluorocarbon cell positive electrode material fluorinated nano graphite |
| CN109461923A (en) * | 2018-11-13 | 2019-03-12 | 山东重山光电材料股份有限公司 | A kind of lithium primary battery compound fluorocarbons positive electrode and its preparation method and application |
| CN110148747A (en) * | 2019-05-14 | 2019-08-20 | 中国民航大学 | A kind of preparation method of the fluorocarbons positive electrode with anti-expansion function |
| CN110395713A (en) * | 2019-06-21 | 2019-11-01 | 黄有桂 | A kind of fluorinated carbon material large-scale preparation method |
| CN110734050A (en) * | 2018-07-21 | 2020-01-31 | 天津大学 | method for preparing high-specific-energy carbon fluoride by using steps of phenolic resin precursor |
| CN110875475A (en) * | 2018-09-04 | 2020-03-10 | 天津大学 | Method for preparing high-specific-energy carbon fluoride anode material by gas-phase fluoridation of fruit shell carbon |
| CN110880599A (en) * | 2018-09-06 | 2020-03-13 | 天津大学 | Preparation method of high-performance fluorinated peanut shell hard carbon electrode material |
| CN111224197A (en) * | 2020-01-06 | 2020-06-02 | 贵州梅岭电源有限公司 | Lithium fluorocarbon-supercapacitor quick response composite battery |
| CN111969201A (en) * | 2020-08-21 | 2020-11-20 | 天津大学 | Preparation method of fluorine-doped phenolic resin-based hard carbon negative electrode material |
| CN112331874A (en) * | 2020-10-23 | 2021-02-05 | 复旦大学 | Wide-temperature-range electrolyte for lithium-carbon fluoride battery |
| CN112441573A (en) * | 2019-09-03 | 2021-03-05 | 天津大学 | Preparation method and application of fluorine-doped hard carbon material |
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| CN108726504A (en) * | 2018-05-18 | 2018-11-02 | 叶荣森 | A kind of high efficiency preparation method of fluorinated fullerene |
| CN110734050A (en) * | 2018-07-21 | 2020-01-31 | 天津大学 | method for preparing high-specific-energy carbon fluoride by using steps of phenolic resin precursor |
| CN109036871B (en) * | 2018-09-03 | 2020-11-17 | 河南克莱威纳米碳材料有限公司 | Lithium ion capacitor negative electrode material, preparation method thereof and lithium ion capacitor |
| CN109036871A (en) * | 2018-09-03 | 2018-12-18 | 河南克莱威纳米碳材料有限公司 | A kind of lithium-ion capacitor negative electrode material and preparation method thereof and a kind of lithium-ion capacitor |
| CN110875475A (en) * | 2018-09-04 | 2020-03-10 | 天津大学 | Method for preparing high-specific-energy carbon fluoride anode material by gas-phase fluoridation of fruit shell carbon |
| CN110880599A (en) * | 2018-09-06 | 2020-03-13 | 天津大学 | Preparation method of high-performance fluorinated peanut shell hard carbon electrode material |
| CN109216698A (en) * | 2018-09-11 | 2019-01-15 | 山东理工大学 | A kind of preparation method of lithium fluorocarbon cell positive electrode material fluorinated nano graphite |
| CN109216698B (en) * | 2018-09-11 | 2021-07-13 | 山东理工大学 | Preparation method of lithium fluorocarbon battery anode material fluorinated nano graphite |
| CN109461923A (en) * | 2018-11-13 | 2019-03-12 | 山东重山光电材料股份有限公司 | A kind of lithium primary battery compound fluorocarbons positive electrode and its preparation method and application |
| CN110148747A (en) * | 2019-05-14 | 2019-08-20 | 中国民航大学 | A kind of preparation method of the fluorocarbons positive electrode with anti-expansion function |
| CN110148747B (en) * | 2019-05-14 | 2022-04-15 | 中国民航大学 | Preparation method of carbon fluoride anode material with anti-expansion function |
| CN110395713A (en) * | 2019-06-21 | 2019-11-01 | 黄有桂 | A kind of fluorinated carbon material large-scale preparation method |
| CN112441573A (en) * | 2019-09-03 | 2021-03-05 | 天津大学 | Preparation method and application of fluorine-doped hard carbon material |
| CN111224197A (en) * | 2020-01-06 | 2020-06-02 | 贵州梅岭电源有限公司 | Lithium fluorocarbon-supercapacitor quick response composite battery |
| CN111224197B (en) * | 2020-01-06 | 2021-10-22 | 贵州梅岭电源有限公司 | Lithium fluorocarbon-supercapacitor quick response composite battery |
| CN111969201A (en) * | 2020-08-21 | 2020-11-20 | 天津大学 | Preparation method of fluorine-doped phenolic resin-based hard carbon negative electrode material |
| CN112331874A (en) * | 2020-10-23 | 2021-02-05 | 复旦大学 | Wide-temperature-range electrolyte for lithium-carbon fluoride battery |
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