Pyrolysis Apparatus for Completely Separating EVA Crystal Silicon Wafer from Waste Photovoltaic Module

    公开(公告)号:US20240079508A1

    公开(公告)日:2024-03-07

    申请号:US18218590

    申请日:2023-07-06

    IPC分类号: H01L31/0224 B09B3/40

    摘要: A pyrolysis apparatus for completely separating an EVA crystal silicon wafer from a waste photovoltaic module includes a heating mechanism controlled by a control system and mounted in a pyrolysis box and being capable of performing telescopic motion in a vertical direction; an overturning assembly for fixedly clamping and driving a photovoltaic module to overturn, the overturning assembly is arranged just under the heating mechanism; and a splitting assembly for separating the photovoltaic module, the splitting assembly is arranged at a left side of the photovoltaic module fixedly clamped by the overturning assembly. A splitting apparatus is provided for assisting in splitting EVA, and isolating glass from the crystal silicon wafer, as well as isolating a back plate from the crystal silicon wafer, and therefore, the pressure generated on the crystal silicon wafer due to large strength of the glass and shrinkage of the back plate is prevented.

    MATERIAL SEPARATION IN SOLAR MODULE RECYCLING

    公开(公告)号:US20240351050A1

    公开(公告)日:2024-10-24

    申请号:US18643546

    申请日:2024-04-23

    申请人: SOLARCYCLE, Inc.

    摘要: Separation of materials for recycling of a used solar module, may be accomplished through the application of an electric field. The solar module may be processed utilizing one or more of grinding, shaking, drying, sieving, slicing, electrodynamic separation, glass removal cutting, shaving, shredding, application of fluid jet(s), blasting, application of ultrasound, application of radiation, and/or application of solvents. According to particular embodiments, it may be desirable to run electrostatic separation of materials without the presence of glass, in particular without the presence of small glass particles. For example, if around >90 wt % of original glass is removed, a separation process can proceed with higher effectiveness.

    SOLAR MODULE RECYCLING AND TESTING
    8.
    发明公开

    公开(公告)号:US20230405652A1

    公开(公告)日:2023-12-21

    申请号:US18461733

    申请日:2023-09-06

    申请人: SOLARCYCLE, Inc.

    摘要: Embodiments relate to one or more techniques that may be employed alone or in combination, in the refurbishment or recycling of used solar modules. In certain approaches, a (heated) wire may be used to cut through one or more layers (e.g., front encapsulant, back encapsulant, both front and back encapsulant, backsheet) of a solar module that is being recycled or refurbished. Some approaches may employ testing of a used solar module, alone or in combination with information (e.g., as part of a received package) regarding parameters of a used solar module such as panel size, width, length, height, thickness of glass, or others. According to specific embodiments, used solar modules may be subjected to various cleaning processes at one or more points during refurbishment/recycling.

    Waste collecting device
    9.
    发明授权

    公开(公告)号:US12023768B2

    公开(公告)日:2024-07-02

    申请号:US17741551

    申请日:2022-05-11

    摘要: Embodiments of the present application provide a waste collecting device, which relates to the technical field of lithium cell manufacturing. The waste collecting device includes a frame, a waste buffer box, a negative pressure flow-equalizing box and a waste collecting box. The waste buffer box is arranged in an upper part of the frame and the waste buffer box is provided with a waste pipeline. The negative pressure flow-equalizing box is arranged on the top of the waste buffer box, the negative pressure flow-equalizing box is communicated with the waste buffer box, and the negative pressure flow-equalizing box is provided with a negative pressure pipeline. The waste collecting box is movably arranged in the lower part of the frame and is selectively communicated with the waste buffer box.

    Method for recycling lead iodide and substrate of waste perovskite device

    公开(公告)号:US20240100580A1

    公开(公告)日:2024-03-28

    申请号:US18522428

    申请日:2023-11-29

    IPC分类号: B09B3/80 C01G21/16

    摘要: Provided is a method for recycling lead iodide and a substrate of a waste perovskite device. The method includes steps as follows: preparing an iodide solution having a set concentration; immersing the waste perovskite device in the iodide solution for dissolution until a perovskite substance of the waste perovskite device is not dissolved, and extracting supernatant; adding water to the supernatant for dilution, and obtaining lead iodide crystals containing a small quantity of impurities; washing the lead iodide crystals containing a small quantity of impurities, adding acid to treat the lead iodide crystals, washing the lead iodide crystals with isopropanol and ether to obtain lead iodide powder, and drying the lead iodide powder to obtain obtaining recycled lead iodide; and cleaning and recycling a substrate generated. The lead iodide is recycled according to Le Chatelier's principle, which achieves safe, environmentally friendly and low-cost recycling.