Abrégé

Disclosed are a silicon-containing material, a preparation method therefor and use thereof. The silicon-containing material comprises silicon oxide particles and silicate mineral particles. The silicate mineral particles are dispersed inside and on the surface of the silicon oxide particles; or the silicate mineral particles are dispersed inside or on the surface of the silicon oxide particles. The preparation method for the silicon-containing material comprises the following steps: (1) preparing required raw materials, mixing silicon and silicon dioxide, then heating and depositing same to obtain a deposit, and crushing the deposit to obtain silicon oxide particles; and (2) mixing the silicon oxide particles and a calcium-containing compound, and performing excitation under specific conditions for reaction, so as to obtain the silicon-containing material. The silicon-containing material of the present invention, when applied to negative electrode materials, can reduce the volume effect of the materials during lithium intercalation and lithium release, thereby improving the initial cycle efficiency and safety performance of a battery, and at the same time, having a certain improvement effect on the problem that the negative electrode active materials are sensitive to water. The preparation method of the present invention has a simple process, is easy to operate, has a high yield, and is suitable for large-scale industrial production.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/48 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques
• H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium

Abrégé

Disclosed in the present invention are a negative electrode active material and a preparation method therefor, the negative electrode active material comprising silicon oxide particles, a carbon material layer, and a carboxylated group; the carboxylated group is connected to the surface of the silicon oxide particles, and the carbon material layer covers the outside of the silicon oxide particles and the carboxylated group; the preparation method for the negative electrode active material comprises the following steps: (1) preparing the silicon oxide particles, and performing carboxylation treatment on the silicon oxide particles to obtain carboxylated silicon oxide particles; and (2) carbon coating the carboxylated silicon oxide particles to obtain the negative electrode active material. The present invention can improve the cycle life and the electrical performance of the negative electrode active material.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/48 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques
• H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
• H01M 4/60 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de composés organiques
• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium

Abrégé

An offshore test system for mixed transportation of deep-sea mining, comprising a water surface operation platform (1) and a lifting pipeline (2); the top end of the lifting pipeline (2) is fixed to the water surface operation platform (1), and the bottom end of the lifting pipeline is placed at an underwater acquisition depth to be tested; a monitoring device (3) for monitoring the state of the lifting pipeline (2) is also provided on the lifting pipeline (2). The system also comprises a circulating device (4); the circulating device (4) is in communication with two ends of the lifting pipeline (2) respectively; the lifting pipeline (2) lifts a solid-liquid mixture from the bottom end to the top end; and the circulating device (4) adjusts the solid-liquid ratio of the solid-liquid mixture lifted to the top end of the lifting pipeline (2), and transports the adjusted solid-liquid mixture to the bottom end of the lifting pipeline (2). The offshore test system for mixed transportation of deep-sea mining has the advantages of real test environment, reliable test data, simple overall structure and easy and convenient operation.

Classes IPC  ?

• E21C 50/00 - Extraction de matières minérales sous l'eau, non prévue ailleurs

Abrégé

Disclosed are a deep-sea mining vehicle trajectory control system and method, and a deep-sea mining vehicle. The trajectory control system comprises: a trajectory monitoring module, a trajectory planning module, and a movement control module. The trajectory monitoring module is used for collecting comprehensive position data and movement state data of the mining vehicle. The trajectory planning module is used for calculating, according to a movement pattern given by an operator and comprehensive position data, a required movement direction of the mining vehicle. The movement control module is used for determining, according to vehicle state monitoring sensor data and movement state data, whether the actual operation of the mining vehicle is normal. If the actual operation of the mining vehicle is normal, the movement control module controls the execution mechanism of the mining vehicle to act according to the required movement direction, and if the operation is abnormal, the movement control module controls the execution mechanism of the mining vehicle to decelerate or stop the mining vehicle. The present trajectory control system and method, and the deep-sea mining vehicle are capable of achieving precise positioning in a seabed environment having high-levels of noise and strong interference, allowing the mining vehicle to follow a predetermined route, and stopping movement when the mining vehicle is operating abnormally.

Classes IPC  ?

• G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
• G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
• G01D 21/02 - Mesure de plusieurs variables par des moyens non couverts par une seule autre sous-classe

Abrégé

Disclosed in the present invention is an underwater sandstone cleaning device, comprising a rack, more than one cutter-suction heads mounted on the rack and used for crushing sandstones, and a collection and transport mechanism connected to the cutter-suction heads and used for collecting and transporting the crushed sandstones, wherein the cutter-suction heads are mounted on the rack in a manner of moving up and down with respect to the rack. The underwater sandstone cleaning device can operate in a harder geological environment, is easy to operate, can move the cutter-suction heads in the vertical direction to crush and collect sandstones in a deeper position, does not need to frequently move in the horizontal direction, improves the efficiency, and has excellent stability.

Classes IPC  ?

• E02F 5/28 - Dragues ou engins de terrassement à usages particuliers pour le curage des cours d'eau ou autres masses d'eau
• E02F 3/92 - Éléments de creusement, p. ex. crépines d'aspiration

Abrégé

Disclosed is a multifunctional seabed mining system, comprising a water surface mother ship (1), a comprehensive mining center (2) placed into the seabed, and one or more mining vehicles (3). The comprehensive mining center (2) is provided with an energy supply bin (21), a material storage bin (22), a traveling device (23), a conveying hose (24) used for conveying materials in the material storage bin (22) to the water surface mother ship (1), one or more material butt joints (25) used for being in butt joint with the mining vehicles (3) to transfer materials collected by the mining vehicles (3) to the material storage bin (22), and one or more charging connectors (26) connected to the energy supply bin (21) and used for supplying power to the mining vehicles (3), wherein one end of the conveying hose (24) is connected to the material storage bin (22), the other end of the conveying hose (24) is detachably connected to the water surface mother ship (1), and the conveying hose (24) is further connected to a first buoyancy component (241) used for enabling a connecting end of the conveying hose (24) and the water surface mother ship (1) to float on the sea surface. The water surface mother ship (1) of the seabed mining system only needs to be connected to the conveying hose (24) when materials need to be loaded, and the seabed mining system is easy to operate, has good safety, and achieves multiple functions, such as exploration, mining and testing.

Classes IPC  ?

• E21C 50/02 - Extraction de matières minérales sous l'eau, non prévue ailleurs liée aux mouvements d'un navire

Abrégé

A laying and recovering device for an underwater operation lifting cabin, the device comprising an operation mother ship (1), an overturning track (2) for bearing and guiding a lifting cabin main body (100) to move and a fixed track (3) for bearing and guiding the lifting cabin main body (100) to move, wherein the fixed track (3) is installed on the operation mother ship (1) in a tiled mode; a turnover track (2) is installed on the operation mother ship (1) in an able-to-turnover mode and may be switched, by means of turnover movement, between two states: being in butt joint with the fixed track (3) in a tiled mode, and extending downwards to underwater. The laying and recovering device further comprises a first turnover driving device used for driving the turnover track (2) to do a turnover movement. The device has advantages such as being capable of achieving automatic distribution and recovery of the lifting cabin, being highly safe and efficient, simple and compact in structure, low-cost, easy and convenient to control and the like.

Classes IPC  ?

• B63B 23/40 - Appareillage de mise à l'eau ou de hissage
• B63B 23/32 - Guides rigides, p. ex. ayant des bras pivotant près de la ligne de flottaison

Abrégé

Disclosed are a silicon-containing material, a preparation method therefor and the use thereof. The silicon-containing material comprises silicon oxide particles and a geopolymer, wherein the geopolymer is dispersed in the interior and on the surface of the silicon oxide particles; or the geopolymer is dispersed in the interior or on the surface of the silicon oxide particles. The preparation method for the silicon-containing material comprises the following steps: (1) preparing desired raw materials, mixing silicon and silicon dioxide, then heating and depositing same to obtain a deposit, smashing the deposit to obtain silicon oxide particles; and (2) activating the silicon oxide particles and aluminosilicate under specific conditions for reaction to obtain the silicon-containing material. The silicon-containing material is applied to lithium ion secondary batteries as a negative electrode active material, and has the advantages of having a volume effect and low sensitivity to water, which can effectively improve the first cycle efficiency and the safety performance. The preparation method has a simple process, simple and convenient operations, and a high production capacity, and can be suitable for large-scale industrialization production.

Classes IPC  ?

• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium

Abrégé

A high-pressure water jet sheet strip sand-blasting descaling cleaning device, a cleaning line and a system are disclosed. The cleaning device includes a cleaning box (7), a washing box (18) and descaling nozzles (6), the descaling nozzles (6) face to the same width direction of a sheet strip (5) and are arranged in a gradient along a conveying direction of the cleaning box (7) to jet covering the sheet strip (5). The system includes the cleaning device, an abrasive collecting box, a high-pressure water supply system, an abrasive supply-recovery-separation system and a sewage recycling treatment system. The nozzles are slantwise arranged in a gradient along the conveying direction, and the neighboring nozzles do not interfere with each other, and are used for cleaning successively, so that a cleaning process is stable and controllable. A high-pressure water jet sand-blasting cleaning technology is combined with a sheet strip conveying system, different specifications of sheet strips can be continuously and stably conveyed while surfaces thereof are cleaned by using the high-pressure water jet sand-blasting acid-free cleaning technology.

Classes IPC  ?

• B24C 1/08 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes pour polir des surfaces, p. ex. en utilisant des abrasifs entraînés par un liquide
• B24C 9/00 - Accessoires des machines ou dispositifs de traitement au jet abrasif, p. ex. enceintes de travail, dispositions pour la manutention des abrasifs usés

Abrégé

An in-situ abundance assessment device and system for seabed polymetallic nodules, comprising a frame (1) as well as a hydraulic station (2), a weighing mechanism (3), a grab mechanism (4), and an electronic bin (5) that are mounted on the frame (1). The electronic bin (5) is electrically connected to the hydraulic station (2), the weighing mechanism (3), and the grab mechanism (4); the grab mechanism (4) comprises a grab (6), a grab horizontal movement drive mechanism (7), and a grab vertical movement drive mechanism (8); the grab vertical movement drive mechanism (8) has an upper end connected to the grab horizontal movement drive mechanism (7) and a lower end connected to the grab (6); the weighing mechanism (3) comprises a weighing bin (9) and a weighing sensor (10); the weighing sensor (10) has one end fixedly connected to the frame (1) and the other end connected to the weighing bin (9); the grab horizontal movement drive mechanism (7) is slidably connected to the frame (1) to put metal nodules grabbed by the grab (6) into the weighing bin (9); and a closable discharge port (11) is provided on the lower side of the weighing bin (9). Multiple samplings can be performed by only once arrangement, and the weighing can be carried out underwater, so that abundance assessment calculation can be performed quickly, and the abundance of seabed polymetal can be assessed in real time.

Classes IPC  ?

• G01N 1/02 - Dispositifs pour prélever des échantillons

Abrégé

A parameter measuring device and method for polymetallic nodules. The device comprises: a measuring cup body (10); a sealing cover (20) covering the measuring cup body (10); a drying device (30), the measuring cup body (10) being placed on the drying device (30), and the drying device (30) being used for drying a sample of polymetallic nodules to be measured in the measuring cup body (10); a weighting device (40), wherein the measuring cup body (10), the sealing cover (20), and the drying device (30) are all placed on the weighing device (40); a water supply and drainage pipe (50) used for injecting water into the measuring cup body (10) or discharging the water from the measuring cup body (10), wherein a first flow meter (70) and a water supply and drainage pump (80) are mounted on the water supply and drainage pipe (50), and the water supply and drainage pipe (50) is connected to a water tank (90); and an overflow pipe (60) communicated with an inner cavity of the measuring cup body (10), the overflow pipe (60) being used for enabling excess water to overflow, and a second flow meter (100) being provided on the overflow pipe (60). The parameter measuring device and method can measure the dry density, wet density, and water content of the polymetallic nodules, the operation is simple, and the measurement result is high in accuracy and precision; and the whole device can be powered by using a battery or an alternating current power source for convenience of marine and field measurements.

Classes IPC  ?

• G01N 5/04 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en éliminant un constituant, p. ex. par évaporation, et en pesant le reste
• G01N 9/02 - Recherche du poids spécifique ou de la densité des matériauxAnalyse des matériaux en déterminant le poids spécifique ou la densité en mesurant le poids d'un volume connu

Abrégé

A deep water pump having a pressure compensation function, comprising: a pump body (1), a hydraulic motor (2), a pump shaft (3), and an impeller (4) mounted on the pump shaft (3); the hydraulic motor (2) being installed on the pump body (1), and the pump shaft (3) being installed in the pump body (1) and being driven via the hydraulic motor (2); an oil chamber (5) having pressure compensation being disposed on the pump body (1), the pump shaft (3) passing through the oil chamber (5) and being in sealed articulation with the oil chamber (5), and the pump shaft (3) being supported and rotated by means of lubricated bearings (8, 9) disposed in the oil chamber (5). The use of the oil pressure compensation device not only solves the problem of bearing lubrication and sealing when a water pump is rotating at high speed, but also, the use of the oil pressure compensation device simultaneously allows for achieving a pressure balance between the inside and outside of a bearing lubrication oil chamber, thus avoiding a lubrication oil chamber being damaged by high pressure in deep water.

Classes IPC  ?

• F04D 29/00 - Parties constitutives, détails ou accessoires
• F04D 13/04 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F04D 29/10 - Joints d'étanchéité pour arbre
• F04D 29/046 - Paliers
• F04D 29/06 - Lubrification

Abrégé

A high-pressure water jet cleaning device for sandblasting and descaling plate strip material, a cleaning line and a system. The cleaning device comprises cleaning tanks (7), rinsing tanks (18), and descaling nozzles (6), wherein the descaling nozzles (6) face the same width direction as plate strip material (5) and are arranged in a gradient along the transport direction of the cleaning tanks (7) so as to provide spray coverage of the plate strip material (5). The foregoing system comprises a cleaning device, abrasive material collection tanks (24), a high-pressure water supply system, an abrasive material supply, recovery, and sorting system, and a waste water circulation and treatment system.

Classes IPC  ?

• B24C 1/08 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes pour polir des surfaces, p. ex. en utilisant des abrasifs entraînés par un liquide
• B24C 3/12 - Appareils utilisant des buses
• B24C 9/00 - Accessoires des machines ou dispositifs de traitement au jet abrasif, p. ex. enceintes de travail, dispositions pour la manutention des abrasifs usés
• B24C 3/32 - Machines ou dispositifs de traitement au jet abrasifInstallations de traitement au jet abrasif prévus pour le travail de pièces particulières, p. ex. de surface intérieure de blocs cylindres

Abrégé

A method of recycling and processing a waste battery. The method comprises the following steps: (1) preparing a waste battery, additionally preparing a slagging agent containing at least 10 wt.% of Si and/or Mn; (2) adding various prepared materials to a smelting furnace so as to generate an alloy containing Co and/or Ni, and slag containing Mn, and dust; controlling a partial pressure of oxygen, a smelting temperature and duration time in a smelting furnace, such that a generated Mn-containing slag contains ≥ 15 wt.% of Mn, ≤ 5 wt.% of Fe, and ≤ 30 wt.% of Al2O3, and 0.2 ≤ Mn/SiO2 ≤ 3.0.

Classes IPC  ?

• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 23/00 - Obtention du nickel ou du cobalt
• C22B 47/00 - Obtention du manganèse
• H01M 10/54 - Récupération des parties utiles des accumulateurs usagés