WO2017055763A1 - Procédé de fabrication d'un matériau de pile au lithium, matériaux et pile au lithium - Google Patents
Procédé de fabrication d'un matériau de pile au lithium, matériaux et pile au lithium Download PDFInfo
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- WO2017055763A1 WO2017055763A1 PCT/FR2016/052497 FR2016052497W WO2017055763A1 WO 2017055763 A1 WO2017055763 A1 WO 2017055763A1 FR 2016052497 W FR2016052497 W FR 2016052497W WO 2017055763 A1 WO2017055763 A1 WO 2017055763A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/168—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/10—Carbon fluorides, e.g. [CF]nor [C2F]n
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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
-
- 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
- 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
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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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
Definitions
- the present invention relates to a method for manufacturing a lithium battery material, to materials obtainable by the method of the invention, to a battery, in particular lithium, incorporating a material according to the invention, and devices incorporating a battery, including lithium, according to the invention.
- references in brackets ([]) refer to the list of references at the end of the text.
- the strategy of some market players has been to increase the fluorination rate x in CFx to reach or even slightly exceed CFi, the precursors being graphite or cheap oil cokes.
- the fluorination mode is then the reaction with molecular fluoride F2 at high temperature, generally 500 to 600 ° C in the case of the graphite precursor.
- the level of defects generated is high for the cokes and the faradic efficiency of the cell is less than 100%.
- the methods of implementation are expensive.
- Carbon nanofibers fluorinated using TbF 4 as fluorinating agent Part I: Structural properties, Carbon, 46, 2008, 1010-1016 [3]; or bi-fluorination methods as described in the documents:
- nanometric forms of carbon also makes it possible to promote the diffusion of ions during electrochemical processes.
- the present invention is specifically intended to solve the aforementioned problems by providing a method of manufacturing an electrochemical cell material to obtain a material having improved electrochemical capabilities.
- the method of the invention comprises a step of grinding fluorinated carbon nanofibers (NFCs) of formula CFx with 0.2 ⁇ x ⁇ 1, said grinding being carried out by frictional impacts for a period of 2 to 100 hours, for example of 2 to 10 hours, with a grinding pressure on the particles of 0.29 x 10 6 Pa at 4.8 x 10 6 Pa, for example from 0.31 x 10 6 Pa to 3.2 x 10 6 Pa, example of 0.8 ⁇ 10 6 Pa at 2.4 ⁇ 10 6 Pa, for example from 0.8 ⁇ 10 6 Pa to 1.6 ⁇ 10 6 Pa, for example from 0.8 ⁇ 10 6 Pa to 1, 2 x 10 6 Pa.
- NFCs fluorinated carbon nanofibers
- the inventors have unexpectedly found that the electrochemical performances of certain fluorinated materials are improved both in terms of discharge potential (increased), in profile discharge (initial reduced or suppressed initial ohmic drop), increased (energy) density and capacitances with values that were measured to be nearly 300% higher than that of the initial fluorinated material when the fluorinated material is subjected to grinding .
- improving the electrochemical properties of the fluorinated materials by the method of the present invention can improve the life of the cell.
- the fluorination rate x in CFx increases, the material becomes less and less electronically conductive.
- the fluorinated carbon is insulating, leading to an ohmic drop at the beginning of the discharge of the cell.
- the electrochemical defluorination during operation of the cell then forms conductive carbon and the potential rises.
- the present invention also relates to an electrochemical cell material that can be obtained by the method of the invention.
- the friction-impact grinding can be carried out using balls or balls, for example as described in the examples below.
- vibration impact or “impact and friction”
- the grinding according to the invention can be carried out by any means suitable for implementing the present invention, known to those skilled in the art, for example by means of a planetary ball mill or by means of an impact mill. balls.
- the grinding can be carried out under vacuum or under an atmosphere chosen from a neutral, optionally fluorinated atmosphere, preferably under an argon atmosphere, optionally fluorinated.
- the grinding may be carried out for example at a temperature between 0 to 15 ° C and 55 to 60 ° C, that is to say that the lower limit of this temperature range between 0 and 15 ° C, and the upper limit of this temperature range between 55 to 60 ° C.
- the temperature may be, for example, 15 to 35 ° C.
- the fluorinated carbon nanofibers of formula CFx with 0.2 ⁇ x ⁇ 1 used for the implementation of the present invention may be obtained by any method known to those skilled in the art.
- the fluorination methods that may be used may, for example, involve fluorinating agents known to those skilled in the art, for example chosen from F 2, a solid fluorinating agent, and the like.
- the fluorination methods that may be used may for example be one of those described in the following documents: Carbon nanofibers fluorinated using TbF4 as fluorinating agent
- non-fluorinated nanofibers are also commercially available.
- these may be marketed materials by the company MER Corporation (US), under the commercial reference Catalog # MRCSD or any equivalent material.
- the fluorinated carbon nanofibers that can be used to implement the process of the invention may have, for example, a diameter of 50 to 200 nm, preferably of 1 to 170 nm, and a length of 5 to 20 ⁇ m. preferably 5 to 9 ⁇ .
- the central portion of non-fluorinated carbon represents from 3 to 65% of the volume of the nanofibres, preferably from 10 to 60%, for example at 20 and 53%, for example for CFO materials, 68
- the 13 C MAS NMR spectrum has a band in the range of chemical shifts of 120 to 135 ppm / tetramethylsilane (TMS).
- the grinding step may advantageously comprise alternating periods of grinding (B) and pausing (P) without grinding.
- This alternation according to the invention can also be considered as being a succession of grinding cycles each comprising a grinding period (B) and a pause (P) without grinding, P and B being as defined above.
- a grinding period (B) from 1 second to 100 hours, for example from 1 second to 50 hours, for example from 1 second to 20 hours, for example from 1 second to 10 hours, for example from 1 second to 5 hours, for example from 1 second to 1 hour, for example from 1 second to 30 minutes, for example from 1 second to 20 minutes, for example from 1 second to 15 minutes, for example from 30 seconds to 15 minutes, for example 1 minute at 15 minutes, for example from 5 to 15 minutes, for example from 6 to 12 minutes, for example from 8 to 10 minutes, for example 9 minutes; and, respectively or independently of the duration of the grinding period or periods,
- a pausing period (P) without grinding for example from 1 second to 100 hours, for example from 1 second to 50 hours, for example from 1 second to 20 hours, for example from 1 second to 10 hours, for example from 1 to second at 5 o'clock, for example from 1 second to 1 hour, for example from 1 second to 30 minutes, for example from 1 second to 20 minutes, for example from 1 second to 15 minutes, for example from 1 second to 5 minutes, for example from 30 seconds to 3 minutes, for example from 30 seconds to 2 minutes, for example 1 minute.
- P pausing period without grinding
- the method of the present invention may further comprise a step of controlled fluorination or "post-fluorination" controlled product from the process of the invention.
- This step can be carried out for example as the aforementioned fluorination step. It makes it possible to increase the fluorination rate of the material obtained after application of the method of the invention, which leads to an increase in the capacity.
- the most numerous are the fibers of lengths less than 1 ⁇ which represent 50 to 70%, ie approximately 60%, on all the SEM images analyzed, those ranging from 1 to 3 ⁇ represent from 20 to 40%, about 30% of the populations represented; and those greater than 3 ⁇ represent 5 to 15%, ie about 10% of the populations represented.
- This example of distribution of the main fiber classes is given for illustrative purposes only, in the light of the experiments presented below. When the grinding time varies, this distribution also varies.
- the present invention also relates to an electrode comprising a material according to the invention.
- the present invention also relates to a battery comprising a material or an electrode according to the invention.
- the battery may for example be a lithium battery.
- This may be for example a battery selected from a button cell, a laboratory battery, a cylindrical battery, a wound battery.
- the present invention also relates to a device comprising a battery according to the invention, for example a device chosen from a mobile phone, a meter, a communication device for oil drilling, a device under pressure, a low or high temperature device, a watch, a pacemaker, a drug injector or drug, a neuro-stimulator.
- a device chosen from a mobile phone, a meter, a communication device for oil drilling, a device under pressure, a low or high temperature device, a watch, a pacemaker, a drug injector or drug, a neuro-stimulator.
- the exceptional properties of the materials of the present invention make them materials of choice for the manufacture of new generations of batteries, with improved electrochemical properties, including for use in harsh environments, even extreme, for example under pressure, low and high temperatures.
- the time indications in hours (h) express the total grinding time during the implementation of the method of the present invention; " ⁇ ” represents the ratio expressed as a percentage between the theoretical capacity and the capacity measured during the experiments; “Rpm” expresses the number of rotations per minute during the practice of the present invention in a mill as set forth in the examples below.
- FIG. 1 shows two photographs of SEM scanning electron microscopy: (a) non-fluorinated carbon nanofibers, and (b) fluorinated carbon nanofibers of formula CFo, 3i that can be used in the method of the invention.
- Figure 2 schematically shows the nanofibres assimilable to multiwall nanotubes (of Figure 1, respectively ( Figure 1 (a) and Fig. 1 (b)).
- Figures 3 (a) and (b) show two photographs of a material according to the invention observed under scanning electron microscopy with different magnifications.
- FIG. 4 schematically represents a battery made of a material of the present invention and making it possible to measure the electrochemical behaviors of the material of the present invention.
- FIG. 5 represents a series of comparative capacity measurements of the overall electrochemical behavior between a prior art material CFo, 3i used to implement the present invention and milled CFo, 3i materials obtained by the process of the present invention, grinding being carried out under air and under argon. The theoretical and corrected capacities are reported.
- FIGS. 6 (a) and (b) respectively represent the 13 C NMR characterization of nanofibers CFo, 3i before and after grinding in air according to the invention, making it possible to measure CFx x before and after grinding according to the process of the invention .
- FIG. 7 represents respectively the 13 C NMR characterization of nanofibers CFo, 68 before (FIG. 7 (a)) and after grinding (FIG. 7 (b)), making it possible to measure the actual amount of CF x fluorine before and after grinding 12 hours under argon, according to the process of the invention.
- FIG. 8 represents a general comparison chart of the overall electrochemical behavior of CFo material, 68 of the prior art versus CFo, 68 obtained by the process of the invention, with milling for 12 hours, under air or under argon.
- FIG. 9 represents various experimental measurements made on button cells and on laboratory batteries comprising a material according to the invention.
- FIG. 10 shows the discharge curves of fluorinated nanofibers by F 2 ( ⁇ ) and by TbF 4 (o, controlled fluorination) with F / C ⁇
- FIG. 11 is a snapshot of an observation by scanning electron microscopy of a material according to the invention.
- FIG. 12 shows experimental results in the form of galvanostatic discharge curves at 10 mA / g of the unmilled NFCs CF0, 43 (solid curve) and ground according to the process of the present invention under different atmospheres for 12 hours at 350 rpm under pressure. of 1 x10 6 Pa (under vacuum (solid triangle)), argon (solid round), nitrogen (diamond), post-fluorination with XeF2 (solid square)).
- FIG. 13 shows experimental results in the form of galvanostatic discharge curves at 10 mA g of unmilled NFCs CF071 (solid curve) and ground under different atmospheres for 6 hours at 350 rpm under a pressure of 1x10 6 Pa (under vacuum (solid round) ), argon (solid square), nitrogen (solid triangle)).
- FIG. 14 represents experimental results in the form of galvanostatic discharge curves at 10 mA / g of CF071 NFCs milled for 6 hours at 350 rpm at 1 ⁇ 10 6 Pa in small and large quantities.
- nanofibers from MER Corporation, under the commercial reference MRCSD were placed in a nickel nacelle placed in the center of a one-liter reactor passivated nickel to be fluorinated by dynamic fluorination (flow F2 gas in an open reactor).
- the dynamic fluorination was carried out under a stream of pure gaseous molecular fluorine F2 at a temperature Tf of 420 ° C, with a flow rate of F2 of 25-30 ml / min for 180 minutes.
- the material obtained had an atomic ratio F / C of 0.31 determined by NMR.
- This material was milled by a Retsch (trademark) PM100 ball mill, in a 50mL stainless steel bowl, with four 10mm diameter stainless steel balls under an argon atmosphere for 6 hours at 1 speed. crushing speed of 350 rpm with crushing breaks of 1 min every 9 min.
- nanofibers destroyed and reduced to small scales, flaking of the outer walls of nanofibres in the form of isolated sheets and clusters of particles;
- EXAMPLE 2 Example of an Electrochemical Cell Construction Which Can Be Used to Implement the Material of the Present Invention
- the material obtained according to Example 1 was suspended in a glass-tank mixer by mixing with 10% by mass of polyvinylidene fluoride (PVDF) in a propylene carbonate liquid medium.
- PVDF polyvinylidene fluoride
- the suspension was then deposited on hot stainless steel electrode pads at 80 ° C. with a surface area of approximately 1 cm 2 and then the pads were degassed under a primary vacuum at 120 ° C. for 1 hour. 50 mg of cathode material, CF x / PVDF 90/10 is obtained;
- the mass of the pads was then evaluated as between 2 and 5 mg.
- the pads are retracted in a glove box and incorporated in a laboratory lithium battery made of lithium metal, Celgard (trademark) type microporous separators, wetted with a LiPF6 electrolyte PC / EC / 3 DMC 1 M as illustrated. in Figure 4 attached.
- This laboratory battery is a 304L stainless steel battery with an internal diameter of 12 mm made up of a pierced cylindrical body in which two 304L steel pistons that serve as a current collector slide. The whole is assembled in glove box and is perfectly sealed, clamping screws coming to adjust the pistons in the cylindrical body.
- references correspond to the following elements of the cell or electrochemical cell:
- separator elements which in this example are Celgard membranes (registered trademark) in the form of polymeric polypropylene films with a diameter of 12 mm, a thickness of 25 ⁇ and an average pore diameter of 0.064 ⁇ ; and / or Whatman fiberglass disc (registered trademark) with a diameter of 12 mm;
- Li a lithium disk. This electrochemical laboratory cell has two stainless steel electrodes consisting of a piston at each end
- the battery thus constituted is removed from the glove box and is connected to a VMP2 galvano-static device (commercial reference) from Bio-Logic Science Instruments SAS (France). After a relaxation of 5h, a reduction current of 10 to 20 mA / g is applied and a cut-off voltage of 1.5V. Li7Li.
- the battery was discharged to the shutdown potential of 1.5V and a density of 10 mA / g (reduction) or 20 mA g.
- Example 3 Examples of Materials Obtained According to the Process of the Invention and Compared with the Corresponding Materials of the Prior Art
- Example 2 various experiments carried out on different materials obtained according to the method of the invention are presented.
- the method of the invention used to obtain the materials tested in this example is that described in Example 1, and the electrochemical performance measurements are performed with a device as described in Example 2.
- the variation of potential is then measured as a function of time.
- NMR analyzes show defluorination during grinding. However, the electrochemical properties of the materials are significantly improved thanks to the method of the invention.
- the fluorinated carbon nanofibers are still visible, despite the presence of a few agglomerates as shown by the scanning electron microscope ( SEM) of the appended FIG.
- agglomerates have an average size of 1.65 ⁇ .
- the fibers are strongly destroyed: they are broken, cracked, opened for some and reduced into small pieces.
- three main classes of fibers are listed after grinding: i) those less than 1 ⁇ ii) those between 1 and 3 ⁇ and iii) those greater than 3 ⁇ . The most numerous are the fibers less than 1 ⁇ for 50 to 70%, ie about 60%, on all the SEM images analyzed, and those between 1 and 3 ⁇ constitute 20 to 40%, ie about 30% of the populations. represented, and those greater than 3 ⁇ represent 5 to 15% in general, or about 10% of the populations represented.
- a longer grinding time is to be performed in the case of fluorinated nanofibers having a higher fluorination rate
- Example 2 The material obtained according to Example 1 was suspended as described in Example 2, only the battery used differs since it was button cells that were used.
- Figure 9 shows the discharge curves obtained in laboratory (square ⁇ ) and button cell (black solid line) cells.
- the 13 C NMR analyzes show a defluorination of the fluorinated nanofibers during grinding, which implies a reduction in the F / C fluorination rate and the theoretical capacity of the material.
- the crusher used in this example is a planetary ball mill, which produces mechanical stress-type friction solicitations.
- the starting materials are comparable to those of Example 3 above, namely CFo, 43 and CFo, 76 against CFo, 3i and CFo, 6s in Example 3.
- the balls exert a centrifugal force which is determined on the one hand from the characteristics peculiar to the latter, namely in particular their mass, density, diameter, etc., on the other hand from the conditions and accessories of grinding, in particular speed of rotation and diameter of the bowl, and finally taking into account the physicochemical characteristics of the material to be ground, in particular the diameter of the particles or nanofluorinated fibers and their rigidity.
- EXAMPLE 8 Characterization of a Product Obtained by the Process of the Present Invention Using Plates as Presented in FIGS. 3 and 4: Statistical Analysis of the Materials Obtained:% of Each of the Essential Constituent Elements of These Materials Obtained by Grinding (sizes, shapes,% s)
- the fluorinated carbon nanofibers are still visible, despite the presence of a few agglomerates as shown by the scanning electron microscope ( SEM) of the appended FIG.
- agglomerates have an average size of 1.65 ⁇ .
- the fibers are strongly destroyed: they are broken, cracked, open for some and reduced into small pieces.
- three main classes of fibers have been listed after grinding: i) those less than 1 ⁇ ; ii) those between 1 and 3 ⁇ ; and iii) those greater than 3 ⁇ .
- FIG. 12 shows the performances for the CFOs, crushed for 12 hours at a pressure of 1 ⁇ 10 6 Pa under different atmospheres.
- galvanostatic discharge curves at 10mA g fluorinated nanofibers CFo, 43 unmilled (solid curve) and crushed under different atmospheres for 12 h at 350 rpm under a pressure of 1 x10 6 Pa (under vacuum (full triangle ), argon (solid round), nitrogen (rhombus), post-fluorination with XeF2 (solid square)).
- the inventors have observed that the post-fluorination improves the performance from the point of view of the experimental capacity obtained, the fluorination rate having increased slightly.
- the fluorination with XeF2 carried out after grinding induces surface fluorination of the nanofibers broken or reduced to pieces.
- the intrinsic (non-fluorinated) carbon initially located in the core of the fiber is brought back to the surface during grinding and is more accessible to atomic fluorine from the fluorinating agent XeF2.
- This surface "re-fluorination" increases the fluorination rate of the ground material and thus explains the obtaining of a larger capacity.
- the ohmic drop remains limited compared to uncrushed fibers (black curve) of the prior art, but is more pronounced than for grindings made under argon, vacuum or nitrogen according to the process of the present invention.
- the discharge potential is 2.6 V for both batches.
- the average capacity for the small batch (50 ml) is 730 mAh / g and 732 mAh / g for the large batch (250 ml). The results are therefore comparable when the volumes are increased.
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680070659.1A CN108473310A (zh) | 2015-10-02 | 2016-09-29 | 制造锂电池材料的方法、材料及锂电池 |
US15/765,390 US20190023574A1 (en) | 2015-10-02 | 2016-09-29 | Method for producing a lithium battery material, materials and lithium battery |
CA3000555A CA3000555A1 (fr) | 2015-10-02 | 2016-09-29 | Procede de fabrication d'un materiau de pile au lithium, materiaux et pile au lithium |
KR1020187011638A KR20180080203A (ko) | 2015-10-02 | 2016-09-29 | 리튬 배터리용 물질을 제조하는 방법, 물질, 및 리튬 배터리 |
JP2018516693A JP2018537806A (ja) | 2015-10-02 | 2016-09-29 | リチウム電池の材料を製造するプロセス、材料、及びリチウム電池 |
EP16787493.2A EP3356291A1 (fr) | 2015-10-02 | 2016-09-29 | Procédé de fabrication d'un matériau de pile au lithium, matériaux et pile au lithium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1559378A FR3041953A1 (fr) | 2015-10-02 | 2015-10-02 | Procede de fabrication d'un materiau de pile au lithium, materiaux et pile au lithium |
FR1559378 | 2015-10-02 |
Publications (1)
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WO2017055763A1 true WO2017055763A1 (fr) | 2017-04-06 |
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PCT/FR2016/052497 WO2017055763A1 (fr) | 2015-10-02 | 2016-09-29 | Procédé de fabrication d'un matériau de pile au lithium, matériaux et pile au lithium |
Country Status (8)
Country | Link |
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US (1) | US20190023574A1 (fr) |
EP (1) | EP3356291A1 (fr) |
JP (1) | JP2018537806A (fr) |
KR (1) | KR20180080203A (fr) |
CN (1) | CN108473310A (fr) |
CA (1) | CA3000555A1 (fr) |
FR (1) | FR3041953A1 (fr) |
WO (1) | WO2017055763A1 (fr) |
Families Citing this family (2)
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CN109461923B (zh) * | 2018-11-13 | 2021-11-30 | 山东重山光电材料股份有限公司 | 一种锂一次电池用复合氟化碳正极材料及其制备方法和应用 |
CN111370680B (zh) * | 2020-03-18 | 2021-05-14 | 宁德新能源科技有限公司 | 电化学装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2999340A1 (fr) * | 2012-12-12 | 2014-06-13 | Univ Blaise Pascal Clermont Ferrand Ii | Utilisation de nanoobjets en carbone sous fluore comme materiau d'electrode de batteries primaires au lithium de fortes capacites |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007126436A2 (fr) * | 2005-11-16 | 2007-11-08 | California Institute Of Technology | Fluoration de nanomatériaux carbonés multicouches |
CN102509802A (zh) * | 2011-10-10 | 2012-06-20 | 中国电子科技集团公司第十八研究所 | 锂电池正极材料用氟化碳的制备方法 |
EP2747177B1 (fr) * | 2012-12-21 | 2017-07-12 | Karlsruher Institut für Technologie | Batteries primaire à fluorure de graphite/lithium et son procédé de fabrication |
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2015
- 2015-10-02 FR FR1559378A patent/FR3041953A1/fr not_active Withdrawn
-
2016
- 2016-09-29 CA CA3000555A patent/CA3000555A1/fr not_active Abandoned
- 2016-09-29 KR KR1020187011638A patent/KR20180080203A/ko unknown
- 2016-09-29 US US15/765,390 patent/US20190023574A1/en not_active Abandoned
- 2016-09-29 CN CN201680070659.1A patent/CN108473310A/zh active Pending
- 2016-09-29 EP EP16787493.2A patent/EP3356291A1/fr not_active Withdrawn
- 2016-09-29 JP JP2018516693A patent/JP2018537806A/ja active Pending
- 2016-09-29 WO PCT/FR2016/052497 patent/WO2017055763A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2999340A1 (fr) * | 2012-12-12 | 2014-06-13 | Univ Blaise Pascal Clermont Ferrand Ii | Utilisation de nanoobjets en carbone sous fluore comme materiau d'electrode de batteries primaires au lithium de fortes capacites |
Non-Patent Citations (2)
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EP3356291A1 (fr) | 2018-08-08 |
KR20180080203A (ko) | 2018-07-11 |
CN108473310A (zh) | 2018-08-31 |
CA3000555A1 (fr) | 2017-04-06 |
US20190023574A1 (en) | 2019-01-24 |
FR3041953A1 (fr) | 2017-04-07 |
JP2018537806A (ja) | 2018-12-20 |
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