Method for preparing hard carbon anode of lithium/sodium ion battery by biochar

    公开(公告)号:US12172898B2

    公开(公告)日:2024-12-24

    申请号:US17595274

    申请日:2021-10-12

    Abstract: Provided is a method for preparing a hard carbon anode of a lithium/sodium ion battery by biochar, which includes the following steps: S1 biochar pretreatment, S2, preparing a precursor material and S3 pyrolysis carbonization, by a modification of the biochar, setting carbonization temperature and carbonization time, and controlling a cooling rate, so that the obtained biochar generates amorphous carbon after carbonization with low graphitization degree, few surface defects, larger charge-discharge specific capacity, and stable performance in the cycle charging and discharging process; at the same time, the process of the application is relatively simple, and a special complex process is reduced; the present method is suitable for a large-scale industrial production without special adjustment or control of a morphology; and the product performance is relatively good and thus has certain competitive advantages.

    Freely Movable Construction Platform

    公开(公告)号:US20240392586A1

    公开(公告)日:2024-11-28

    申请号:US18670668

    申请日:2024-05-21

    Abstract: A construction platform that is freely movable up and down is provided, which includes several curved platforms, several columns and a control panel. The curved platforms are connected with one after the other to form a ring-shaped platform that surrounds a cylindrical building and is movable along the columns. Each curved platform is provided with one or more mounting brackets. Each mounting bracket is provided with one or more movable brackets, one or more pressing mechanisms, one or more locking mechanisms, one or more movable rods, one or more suction cups, a pumping mechanism, and one or more emergency braking mechanisms. Each emergency braking mechanism includes a sprocket, a chain, a counterweight, an angle sensor, and a configuring assembly. Each configuring assembly includes a ring gear, a mounting sleeve, a configuring rod, a pawl, a torsion spring, an electromagnet and a magnetic block.

    Corrosion-resistant nickel alloy
    7.
    发明授权

    公开(公告)号:US12098446B2

    公开(公告)日:2024-09-24

    申请号:US18505145

    申请日:2023-11-09

    CPC classification number: C22C19/055 C22C1/023

    Abstract: A corrosion-resistant nickel alloy is provided. The alloy includes the following components in percentage by mass: 4.68-5.35% of B, 5.69-6.41% of W, 27.68-28.39% of Cr, 12.65-13.42% of Al, and the balance of Ni and inevitable impurities. The corrosion-resistant nickel alloy is a Ni—W—B ternary alloy with main components of Ni, W and B, wherein the three elements have strong high-temperature corrosion resistance at a temperature of about 600° C., and have the potential of solid solution hardening and precipitate formation because all belong to solid solution forming elements, so that a creep strength of a nickel alloy matrix is improved. Meanwhile, Al and Cr are further added in the alloy formula, so that Al2O3 and Cr2O3 oxide layers can be formed, which play a role as a physical diffusion barrier against chlorine gas and other corrosive gases.

    Storage device for data encryption and self-destruction

    公开(公告)号:US11893143B2

    公开(公告)日:2024-02-06

    申请号:US17449262

    申请日:2021-09-29

    Abstract: A storage device for data encryption and self-destruction includes a controller, an interface module, a storage module, an encryption and authentication module, a positioning module, a power supply module, and a communication and self-destruction module. The interface module, the storage module, the encryption and authentication module, the positioning module and the communication and self-destruction module are electrically connected to the controller, respectively. The encryption and authentication module is configured to encrypt and protect data stored in the storage module, and authenticate a request for remote access to the storage device. The communication and self-destruction module is configured to send position information acquired by the positioning module to a storage device management system, receive and execute a data destruction instruction issued by the storage device management system, and destruct the data stored in the storage module. The power supply module is configured to provide electrical energy for the storage device.

    Three-dimensional energy dissipation and vibration isolation bearing

    公开(公告)号:US11879265B2

    公开(公告)日:2024-01-23

    申请号:US18321885

    申请日:2023-05-23

    Inventor: Yun Chen Jiajia Mu

    CPC classification number: E04H9/022

    Abstract: The present invention discloses a three-dimensional energy dissipation and vibration isolation bearing. A laminated rubber bearing comprises an upper connecting plate and a lower connecting plate, and the upper connecting plate and the lower connecting plate are tightened through a stay cable; U-shaped strips are arranged around the laminated rubber bearing and fixed with the edge of the steel plate and the edge of the lower connecting plate; a support shaft is fixed on the top surface of the upper connecting plate; disk springs are sleeved on the support shaft and clamped between the upper connecting plate and the steel plate and between the steel plate and the jacking nut; and anchor bars are vertically fixed on the top surface of the U-shaped frame and the bottom surface of the lower connecting plate.

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