The present disclosure provides an apparatus and method for preparation of negative electrode material using length-wise graphitization of carbon. The apparatus includes one or more graphite boxes, configured to store powdered coke. The one or more graphite boxes are enabled to be accommodated inside a refractory, encapsulated by a cooling jacket configured to regulate surface temperature of the apparatus. The one or more graphite boxes have one or more openings for refilling of powdered coke and collection of prepared material, the one or more openings being covered by one or more first lids and one or more heat insulating second lids. The apparatus includes one or more graphite electrodes coupled to the one or more graphite boxes and the refractory. One or more heating elements detachably coupled to the one or more graphite electrodes are enabled to receive electric power and uniformly heat the powdered coke.
The present disclosure relates to a carbon coated Silicon-Graphite composite anode material. The present disclosure also relates to a method of preparing a carbon coated Silicon-Graphite composite anode material. The present disclosure also provides a Li-ion coin cell. The carbon coating of Si-Graphite composite binds the Si nano particles on graphite matrix during Lithiation/delithiation reactions, enhancing the electrochemical cycling stability of Si- Graphite anode material, which accomplish the essential criteria of Li-ion battery anode.
The present disclosure provides a method (200) of manufacturing a graphite-based material for an electrode. The method (200) includes the steps of: shaping a block material comprising graphite into a raw material block; coating the raw material block with a second material, wherein the second material comprises carbon; and heating the coated raw material block to enable a graphitization of the coated raw material block to produce a carbon coated graphite-based material. The coated raw material block is heated to a temperature of greater than about 2600 °C in order to remove impurities. Such a process yields a graphite powder with a high purity content, of greater than about 99.95%. The present disclosure further provides an electrode made of the graphite-based material.
The present disclosure relates to a system (100) for manufacturing spheroidized graphite powder, the system includes a feeder (104) adapted to convey primarily crushed particles to a grinding section (106). A first classifier (108) is located at the top portion of the chamber and is configured to receive the milled particles and adapted to separate the milled particles into a first particle and a second particle. A controller (112) operatively coupled to the one or more motors (110), the controller configured to operate the one or more motors at progressively varying RPM, at higher RPM it cuts the rough edges of the particle to form the first fine graphite particle and second shaped graphite particle and when the it RPM decreased to lower level, the surface smoothening of shaped particle process occurs, which results smooth surfaced spherical graphite.
The present disclosure provides an apparatus (100) and method for preparation of negative electrode material using length-wise graphitization of carbon. The apparatus (100) includes one or more graphite boxes (102), configured to store powdered coke. The one or more graphite boxes (102) are enabled to be accommodated inside a refractory (104), encapsulated by a cooling jacket (110) configured to regulate surface temperature of the apparatus (100). The one or more graphite boxes (102) have one or more openings for refilling of powdered coke and collection of prepared material, the one or more openings being covered by one or more first lids (106) and one or more heat insulating second lids (108). The apparatus (100) includes one or more graphite electrodes (114) coupled to the one or more graphite boxes (102) and the refractory (104). One or more heating elements (112) detachably coupled to the one or more graphite electrodes (114) are enabled to receive electric power and uniformly heat the powdered coke.
C04B 35/528 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
H05B 3/14 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
H05B 3/60 - Heating arrangements wherein the heating current flows through granular, powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
7.
System and Process for Producing Mesophase Coke from Isotropic Pitch
The present invention provides a system for producing mesophase coke from an isotropic pitch. The system includes a reactor having a first heating zone to carry out pretreating of the isotropic pitch by operating at a temperature of 250° C.-350° C. under atmospheric pressure. The reactor further includes a second heating zone to carry out heating of the pretreated isotropic pitch by maintaining the temperature of 350° C.-500° C. under the atmospheric pressure to obtain mesophase pitch. The reactor includes a third heating zone to carry out heating of the said mesophase pitch by maintaining the temperature of 500° C.-800° C. under the atmospheric pressure to obtain mesophase coke. The system further includes a pusher unit adapted to physically move the container from the entry zone to the exit zone to obtain the mesophase coke.
The present invention provides a system (1000) for producing mesophase coke from an isotropic pitch. The system includes a reactor having a first heating zone (102) to carry out pretreating of the isotropic pitch by operating at a temperature of 250°C - 350°C under atmospheric pressure. The reactor further includes a second heating zone (103) to carry out heating of the pretreated isotropic pitch by maintaining the temperature of 350°C - 500°C under the atmospheric pressure to obtain mesophase pitch. The reactor includes a third heating zone (104) to carry out heating of the said mesophase pitch by maintaining the temperature of 500° C - 800°C under the atmospheric pressure to obtain mesophase coke. The system further includes a pusher unit (300) adapted to physically move the container (50) from the entry zone (101) to the exit zone (106) to obtain the mesophase coke.
The present invention provides a system (1000) for producing mesophase coke from an isotropic pitch. The system includes a reactor having a first heating zone (102) to carry out pretreating of the isotropic pitch by operating at a temperature of 250°C - 350°C under atmospheric pressure. The reactor further includes a second heating zone (103) to carry out heating of the pretreated isotropic pitch by maintaining the temperature of 350°C - 500°C under the atmospheric pressure to obtain mesophase pitch. The reactor includes a third heating zone (104) to carry out heating of the said mesophase pitch by maintaining the temperature of 500° C - 800°C under the atmospheric pressure to obtain mesophase coke. The system further includes a pusher unit (300) adapted to physically move the container (50) from the entry zone (101) to the exit zone (106) to obtain the mesophase coke.
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