Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology Limited

Shuojian Su

Yongsheng Guo

Chuying Ouyang

Na Liu

Cong Cheng

Jiarui Tian

Yuanyuan Lan

Chengdu Liang

Guodong Chen

Ying Wang

Yandong Wang

Xiqing Wang

Qian Liu

Zhaohui Liu

Xinxin Zhang

Xiangling Lin

Hanfang Li

Weile Lin

Yanfen Wang

Changmao Wang

This application provides a separator, an electrical apparatus including the separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I, Lx(MaCb)y·Az. This application further provides a battery and electrical device containing such separator, preparation methods thereof, organic-inorganic hybrid composite compound for improving performance of a separator.

Separator, electrical apparatus containing such separator, and preparation method thereof

The present application relates to a solar cell and a method for preparing the same, a photovoltaic module, and a power consuming device. The solar cell may have a plurality of sub-cells, each of the plurality of sub-cells including a first electrode layer, a photovoltaic conversion module, and a second electrode layer that may be sequentially stacked along a thickness direction of the sub-cell, the second electrode layer including a main body portion and a connection portion electrically connected to the main body portion, and the connection portion of one of the plurality of sub-cells being configured to be electrically connected to the first electrode layer of another sub-cell, such that the plurality of sub-cells may be electrically connected, where a thickness of the main body portion may be greater than that of the connection portion.

Solar cell and method for preparing same, photovoltaic module and power consuming device

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 grain (), where the penetrating crystal grain () is a crystal grain penetrating through the photoactive crystalline material layer (), and a percentage p of a quantity of penetrating crystal grains () in a total quantity of crystal grains of the photoactive crystalline material layer () is ≥80%. The photoactive crystalline material layer () includes a backlight side () and a backlight crystal grain (), where the backlight crystal grain () is a crystal grain 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 Rbeing ≤75.

A/M/X crystalline material, photovoltaic device, and preparation methods thereof

This application provides a separator, an electrical apparatus containing such separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I, L(MC)·A. This application further provides a battery and an electrical device containing such separator, preparation methods thereof, and an organic-inorganic hybrid composite compound for improving performance of a separator.

Embodiments of this application provide a perovskite solar cell, a preparation method thereof, and an electric device. The perovskite solar cell includes: a back plate; a transparent substrate, where a sealed cavity is formed between the transparent substrate and the back plate; and a perovskite solar cell device, where the perovskite solar cell device is located in the sealed cavity; where the sealed cavity contains ammonia gas having a volume fraction of 10%-100% and residual inert gas. The 10%-100% ammonia gas can improve chemical stability of a perovskite material, thus improving thermal stability of the perovskite solar cell device, and further improving efficiency and service life of the perovskite solar cell.

Perovskite solar cell, preparation method thereof, and electric device

The present application provides an organic-inorganic hybrid complex which can be used in a coating of a separator for a secondary battery, wherein the organic-inorganic hybrid complex is formed from basic units represented by formula (I) being periodically assembled in at least one spatial direction: [L][MC].A(I), wherein a defect percentage expressed in i/x*100% is 1% to 30%. The present application further provides a coating composition comprising the organic-inorganic hybrid complex, a coating formed from the coating composition, a separator comprising the coating for a secondary battery, a secondary battery comprising the separator, a battery module, a battery pack and a device. By applying the organic-inorganic hybrid complex of the present application in a coating, the electrolyte infiltration of a separator for a secondary battery is improved while increasing the electrolyte retention rate, thereby improving the rate capability and cycling life of the secondary battery.

Organic-inorganic hybrid complex and coating composition comprising same, separator, secondary battery, battery module, battery pack and power consuming device

This application provides a separator, an electrical apparatus containing such separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I, L(MC)·A. This application further provides a battery and electrical device containing such separator, preparation methods thereof, organic-inorganic hybrid composite compound for improving performance of a separator.

Separator including coating layer including organic-inorganic hybrid composite compound battery including the same, and method of preparing the same

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 may include 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 comprises a noble gas, optionally, a mixture of argon and a halogen gas, so as to obtain the perovskite film.

Preparation method for perovskite film, and related perovskite film and solar cell

The present disclosure provides a prussian blue analogue positive electrode material, a preparation method therefor and an electrochemical energy storage device. A molecular formula of the prussian blue analogue positive electrode material is AM[M'(CN)](b-HO)L.&#x25a1;.(i-HO), where, A is one or more selected from a group consisting of alkali metal cation, alkaline-earth metal cation, Znand Al; M is a metal with the valence of 2+ or 3+; M&#x2032; is a metal with the valence of 2+ or 3+; b-HO is a coordinated water; &#x25a1; is a M&#x2032;(CN)cavity; L is a neutral ligand, the neutral ligand is one or more selected from a group consisting of CHCN, NH, CO and CHN; i-HO is an interstitial water; 0&#x3c;x&#x2264;2; 0&#x3c;c&#x2264;1; 0&#x3c;y&#x3c;1; 0&#x3c;d&#x2264;6y; 0&#x2264;z&#x2264;16. In the prussian blue analogue positive electrode material of the present disclosure, the neutral ligand L participates in the coordination with a transition metal and substitutes the coordinated water partly or wholly, so that a content of the coordinated water is decreased or even eliminated, therefore, the water absorption performance of the prussian blue analogue positive electrode material will be decreased significantly, in turn the performance of the electrochemical energy storage device is significantly improved.

Prussian blue positive electrode material, preparation method therefor, and electrochemical energy storage device

The present disclosure 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 5 mg/cm&#x2dc;30 mg/cm. In the positive electrode film of the present disclosure, 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 electrode plate and electrochemical battery

The present disclosure 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 AM[M'(CN)], a water content of the positive electrode active material film is 100 &#x3bc;g/g&#x2dc;5000 &#x3bc;g/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.

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Ningde, China

Shuojian Su