PREPARATION METHOD FOR PEROVSKITE THIN FILM, AND PEROVSKITE THIN FILM AND SOLAR CELL RELATED THERETO

    公开(公告)号:EP4319538A1

    公开(公告)日:2024-02-07

    申请号:EP21944419.7

    申请日:2021-11-22

    摘要: The present application provides a method for preparing a perovskite film, and a related perovskite film, solar cell and solar cell device thereof. The preparation method includes the steps of (1) providing a target material comprising the following elements: lead, a halogen, and one or more alkali metals; (2) sputtering using the target material in step (1), where a process gas is a noble gas, optionally, argon, so as to obtain a film; (3) subjecting the film obtained in step (2) to a chemical bath treatment, wherein the chemical bath is a solution of AX, A is selected from one or more of formamidine or methylamine, and X is a halogen; and (4) sputtering on the film obtained in step (3) using a tin metal, where a process gas is a noble gas, optionally, a mixture of argon and a halogen gas, so as to obtain the perovskite film. The method has an excellent film-forming quality and good process controllability.

    POSITIVE ELECTRODE PLATE AND ELECTROCHEMICAL BATTERY

    公开(公告)号:EP3503264A1

    公开(公告)日:2019-06-26

    申请号:EP18203736.6

    申请日:2018-10-31

    摘要: The present invention provides a positive electrode plate and an electrochemical battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode film. The positive electrode film is provided on the positive electrode current collector and comprises a positive electrode active material and a binder. The positive electrode active material comprises a prussian blue analogue material, the binder is an oil-soluble binder, an area density of the positive electrode film is 5mg/cm 2 ∼ 30mg/cm 2 . In the positive electrode film of the present invention, the prussian blue analogue material is used together with the oil-soluble binder, and the area density of the positive electrode film is controlled within a certain range, so that introduction of the water molecule can be reduced during the preparation process and coating process of a positive electrode slurry, and cycle performance of the electrochemical battery can be improved.

    POSITIVE ELETRODE PLATE, PREPARATION METHOD THEREOF AND SODIUM-ION BATTERY

    公开(公告)号:EP3477745A1

    公开(公告)日:2019-05-01

    申请号:EP18199351.0

    申请日:2018-10-09

    摘要: The present invention provides a positive electrode plate, a preparation method thereof and a sodium-ion battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material film. The positive electrode active material film provided on the positive electrode current collector and comprises a positive electrode active material. The positive electrode active material comprises a prussian blue analogue material, a molecular formula of the prussian blue analogue material is A x M[M'(CN) 6 ] y , a water content of the positive electrode active material film is 100µg/g∼5000µg/g. The water content of the positive electrode active material film is controlled within a certain range, which can not only ensure the sodium-ion battery do not seriously swell during charge-discharge process, but also can ensure sodium-ion battery have excellent charge-discharge performance and cycle performance.

    PEROVSKITE CELL HAVING MULTIPLE LAYERS OF HOLE TRANSPORT LAYERS AND PREPARATION METHOD FOR PEROVSKITE CELL

    公开(公告)号:EP4250898A1

    公开(公告)日:2023-09-27

    申请号:EP21961714.9

    申请日:2021-10-26

    IPC分类号: H10K71/00 H10K30/00

    摘要: This application provides a method for preparing a perovskite cell with multiple hole transport layers. The method includes a process of forming the multiple hole transport layers, where the process of forming the multiple hole transport layers includes the following steps: (1) sputtering a nickel oxide target material in a first atmosphere to form a first hole transport layer, where the first atmosphere contains argon and oxygen, and a volume ratio of the argon to the oxygen is approximately 0:1 to 1.5: 1; (2) performing annealing treatment on the first hole transport layer; and (3) sputtering the nickel oxide target material onto the first hole transport layer subjected to the annealing treatment in a second atmosphere to form a second hole transport layer, where the second atmosphere contains argon-containing gas and oxygen, a volume ratio of the argon-containing gas to the oxygen is approximately 1:0 to 4:1, and the argon-containing gas contains argon, and optionally hydrogen. This application further provides a perovskite cell (100) with multiple hole transport layers prepared by using the above method.

    A/M/X CRYSTALLINE MATERIAL, PHOTOVOLTAIC DEVICE, AND PREPARATION METHOD THEREFOR

    公开(公告)号:EP4236651A1

    公开(公告)日:2023-08-30

    申请号:EP21963474.8

    申请日:2021-12-23

    IPC分类号: H10K10/00

    摘要: This application provides an A/M/X crystalline material, a photovoltaic device, and preparation methods thereof. The photovoltaic device includes a photoactive crystalline material layer. The photoactive crystalline material layer includes a penetrating crystal, where the penetrating crystal is a crystal penetrating through the photoactive crystalline material layer, and a percentage p of a quantity of penetrating crystals in a total quantity of crystals of the photoactive crystalline material layer is ≥80%. The photoactive crystalline material layer includes a backlight side and a backlight crystal, where the backlight crystal is a crystal exposed to the backlight side and has a backlight crystal face exposed to the backlight side. At least one region of the backlight side has an average flatness index R avg being ≤75.

    CELL PRODUCTION SYSTEM AND CELL PRODUCTION METHOD

    公开(公告)号:EP4358159A1

    公开(公告)日:2024-04-24

    申请号:EP22923528.8

    申请日:2022-12-14

    IPC分类号: H01L31/18

    摘要: Embodiments of the present application provide a battery production system and a battery production method. The battery production system includes: a preheating apparatus, including preheating cavities, a first delivery mechanism being arranged in the preheating cavity, and the preheating cavity having a first charging door and a first discharging door; and a baking apparatus, including baking cavities, the baking cavity having a second charging door and a second discharging door, wherein the first delivery mechanism is configured to deliver the battery piece in the preheating cavity to the baking cavity through the first discharging door and the second charging door when the first discharging door and the second charging door are opposite and are both opened. The battery piece can be delivered from the preheating cavity to the baking cavity through the first delivery mechanism arranged in the preheating cavity in a short time, thus reducing the temperature drop of the battery piece during the delivery process, and avoiding the impact of the temperature drop on the process performance. Moreover, the delivery time of the battery piece is short, so the opening time of a cavity door can be shortened, the electric energy loss can be reduced, the delivery efficiency is high, and the production rhythm can be increased.