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 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite obtenus à partir de particules carbonées avec ou sans autres composants non organiques
H01B 1/04 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement soit de compositions à base de carbone-silicium, soit de carbone soit de silicium
H01M 4/133 - Électrodes à base de matériau carboné, p. ex. composés d'intercalation du graphite ou CFx
H01M 4/1393 - Procédés de fabrication d’électrodes à base de matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H05B 3/14 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur caractérisés par la composition ou la nature du matériau conducteur le matériau étant non métallique
H05B 3/60 - Dispositions pour le chauffage dans lesquelles le courant de chauffage circule dans un matériau granuleux, en poudre ou fluide, p. ex. pour fours à bains de sel, chauffage électrolytique
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.
C10C 3/00 - Traitement du brai, de l'asphalte, du bitume
C10B 7/14 - Fours à coke comportant des moyens mécaniques pour le transport de la matière première à l'intérieur du four avec des trucs, récipients ou palettes
C10B 57/02 - Procédés de carbonisation ou de cokéfaction à phases multiples
8.
SYSTEM AND PROCESS FOR PRODUCING MESOPHASE COKE FROM ISOTROPIC PITCH
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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